travel device excavator

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Travel Motor assembly

Travel motor assembly

Travel motors:

The travel motor is a hydraulic motor on an excavator that provides power to the tracks for mobility. It is responsible for propelling the machine forward, backward and turning. The travel motor is a critical component of an excavator's undercarriage system and is typically connected to the hydraulic system through a series of gears, shafts, and hydraulic hoses.

Powertrack supplies genuine parts, travel motors & travel motor assembly for Doosan, Volvo, Hyundai excavators as well as a wide range mini excavators for Korean and Japanese brands:

• HYDASH, KAYABA, UCHIDA,NACHI travel devices are available  for Mini travel devices.
• Hydash- GM03, GM05V, GMO5VL, GM06VL, GM06VN, GM06VL, GM09VL,GM15L2,GM18VL
• KAYABA - MAG16V,MAG18V, MAG26V,MAG26B, MAG33V, PSVD2-21, PSVK2-27, PSVD2-21
• UCHIDA- AP2D36LV1R36, PVD2B36L3DP, AP2D14LVGP
• JEIL: JMF16, JMV23, JMV44, JMV53
• NACHI:PHV1B, PHV2B, PHV3B, PHV4B, PHV80, PHV120, PHV190, PHV250

RODUCT LIST FOR TRAVEL DEVICE

We can supply Travel motor & travel devices for YANMAR, KOMATSU, TACKUCHI, VOLVO, HYUNDAI, DOOSAN excavators & wheel loaders.

• Apply to CAT Excavators
• Apply to Hitachi Excavators
• Apply to Komatsu Excavators
• Apply to Kobelco Excavators
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• Apply to Kato Excavators
• Apply to Sumitomo Excavators
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• Apply to Sany Excavators
• Apply to XCMG Excavators
• Apply to CASE Excavators
• Apply to Yuchai Excavator
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• Apply to Komatsu Excavator Parts
• Apply to Volvo Excavator
• Apply to Yuchai Excavators
• Apply to Bonny Excavators
• Apply to CAT Travel Motor
• Apply to Hitachi Travel Motor
• Apply to Komatsu Travel Motor
• Apply to Doosan Travel Motor
• Apply to Sumitomo Travel Motor
• Apply to Volvo Travel Motor
• Apply to SANY travel motor
• Apply to JCB track motor
• Apply to KYB Travel Motor
• Apply to Nabtesco Travel Motor
• Apply to BOBCAT Travel Motor
• Apply to NACHI Travel Motor
• Apply to Rexroth Travel Motor
• Apply to Yanmar Travel Motor
• Apply to CASE Travel Motor
• Apply to JCB
• Apply to NACHI Excavators
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• Apply to KYB
• Apply to Toshiba
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Optimizing Excavator Performance: A Guide To Travel Gearboxes

Views: 0      Author: Site Editor     Publish Time: 2024-03-04      Origin: Site

Excavators are the backbone of modern construction, tirelessly digging, lifting, and maneuvering through diverse terrains. At the heart of these mighty machines lies a crucial component: the excavator travel gearbox. This article delves into the intricacies of excavator travel gearboxes, their significance, and how they enhance the performance of popular excavator models like the SANY SY205, SY210, SY225, XCMG XE135B, XE150, and Volvo EC210, EC210B.

Understanding Excavator Travel Gearboxes

Excavator travel gearboxes , also known as travel devices or excavator travel reduction gear, are the mechanical marvels responsible for converting the rotational power from the engine into linear motion, enabling the excavator's movement. These gearboxes are integral to excavators' mobility, allowing them to navigate through challenging terrains with ease and precision.

At their core, excavator travel gearboxes feature a sophisticated arrangement of gears, shafts, bearings, and seals designed to withstand heavy loads and provide optimal performance under varying conditions. The excavator travel reduction gear mechanism within the gearbox ensures that the excavator can generate sufficient torque while maintaining control over its speed, crucial for efficient operation in construction environments.

Application in Popular Excavator Models

APPLY TO SY205 SY210 SY225 TRAVEL DRIVE TRANSMISSION

APPLY TO XE135B XE150 TRAVEL DRIVE TRANSMISSION

Excavator travel gearboxes play a pivotal role in enhancing the performance of various excavator models, including the SANY SY205, SY210, and SY225 series. These rugged machines are renowned for their durability, efficiency, and versatility on construction sites worldwide. The incorporation of high-quality travel gearboxes ensures smooth and reliable operation, enabling these excavators to excel in a wide range of applications, from excavation to material handling.

Similarly, the XCMG XE135B and XE150 excavators leverage advanced excavator travel device transmission systems to deliver superior performance in demanding environments. These models are engineered for efficiency and productivity, with travel gearboxes that enable precise control and maneuverability, enhancing operator comfort and safety on the job site.

Volvo excavators, such as the EC210 and EC210B series, are synonymous with reliability and performance. Equipped with excavator travel gearbox, these excavators offer exceptional power and efficiency, making them ideal for heavy-duty construction tasks. The integration of cutting-edge technology ensures optimal transmission of power, allowing Volvo excavators to tackle the most challenging projects with ease and efficiency.

Benefits of Upgrading Excavator Travel Gearboxes

VOE14528732 VOVLO EC210 EC210B  TRAVEL MOTOR ASSY FINAL DRIVE

Upgrading excavator travel gearboxes can yield numerous benefits, including enhanced performance, increased durability, and reduced maintenance costs. By investing in high-quality gearboxes designed for specific excavator models, operators can optimize machine efficiency and productivity, ultimately leading to greater profitability and operational success.

Improved gear ratios and precision engineering ensure smoother operation and reduced wear on critical components, extending the service life of the excavator. Enhanced sealing and lubrication systems mitigate the risk of damage from external contaminants, reducing the likelihood of costly repairs and downtime.

Moreover, advanced features such as integrated cooling systems and intelligent monitoring capabilities enable proactive maintenance and troubleshooting, minimizing the risk of unexpected failures and maximizing uptime on the job site. Overall, upgrading excavator travel gearboxes is a prudent investment that can significantly enhance the performance and longevity of excavator fleets.

Choosing the Right Excavator Travel Gearbox

When selecting a replacement or upgrade for excavator travel gearboxes, it's essential to consider factors such as compatibility, performance specifications, and manufacturer reputation. Opting for OEM (Original Equipment Manufacturer) or certified aftermarket gearboxes ensures compatibility and reliability, minimizing the risk of compatibility issues or subpar performance.

Additionally, consulting with industry experts or authorized dealers can provide valuable insights into selecting the optimal gearbox for specific excavator models and applications. By partnering with reputable suppliers and manufacturers, operators can ensure that their excavators are equipped with high-quality gearboxes that meet their performance and reliability requirements.

In conclusion, excavator travel gearboxes are indispensable components that play a vital role in enhancing the performance and efficiency of modern excavators. Whether it's the SANY SY205, SY210, SY225, XCMG XE135B, XE150, or Volvo EC210, EC210B, investing in high-quality gearboxes is essential for maximizing productivity, minimizing downtime, and ensuring operational success on construction sites. By understanding the significance of excavator travel gearboxes and choosing the right components for their fleet, operators can unlock the full potential of their excavators and achieve unparalleled performance in the field.

excavator travel gearbox

Excavator travel device, excavator travel reduction gear, related products.

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PANRI EXCAVATOR PARTS

What is a travel motor in an excavator, introduction.

Excavators are powerful machinery commonly used in construction, mining, and various industries that require heavy digging and earthmoving capabilities. Every component of an excavator plays a vital role in its overall performance, and one such essential component is the travel motor. In this article, we will explore the significance of the travel motor in excavators, its functionalities, and how it enhances efficiency and performance in these heavy-duty machines. Join us as we delve into the world of travel motors and their role in optimizing excavator operations.

Definition and Purpose

The travel motor in an excavator is a critical component of the machine’s hydraulic drive system. It is responsible for generating the rotational power required to move the excavator’s tracks or wheels, enabling it to navigate across various terrains easily. By propelling the machine forward or backward, the travel motor ensures smooth and controlled movement, making it an indispensable part of an excavator’s mobility.

Power and Control

Travel motors in excavators are designed to deliver substantial torque and power, allowing them to effectively handle heavy loads and challenging terrain. These high-performance motors enable excavators to operate in demanding environments, such as construction sites or mining operations.

Additionally, travel motors provide precise control over the excavator’s movement. They allow operators to maneuver the machine with precision, whether it’s navigating tight spaces, carrying out detailed excavation tasks, or working on sloping surfaces. This level of control not only enhances productivity but also ensures safety during operation.

Efficiency and Reliability

Efficiency is a crucial aspect of any excavator, and travel motors play a significant role in optimizing fuel consumption and reducing energy wastage. Modern travel motors are engineered with advanced technologies, such as hydraulic systems with variable displacement, to provide efficient power output based on the workload. This ensures that energy is utilized effectively, minimizing unnecessary fuel consumption and increasing overall efficiency.

Furthermore, travel motors are built to withstand the rigorous demands of excavator operations. They are constructed using durable materials and undergo rigorous testing to ensure reliability and longevity. This durability reduces maintenance requirements and downtime, allowing excavators to operate continuously, maximizing productivity on the job site.

In the world of excavators, a reliable and efficient travel motor is essential for optimal performance and productivity. Whether it’s providing the power to move heavy loads or enabling precise control over movement, the travel motor plays a crucial role in an excavator’s efficiency and functionality.

Investing in a high-quality travel motor ensures smooth and reliable operation, whether you’re working on construction sites, mining projects, or other excavation tasks. Choose a travel motor that suits your excavator’s specifications and requirements, and experience the benefits of enhanced power, control, efficiency, and reliability.

Embrace the capabilities of a robust and efficient travel motor in your excavator, and witness the difference it can make in improving productivity and success in your excavating operations. Trust in the reliability and performance of travel motors to optimize your excavator’s potential and achieve superior results in your heavy equipment endeavors.

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Bonfiglioli Travel Device

• Date 2018년 November 12일
• Bonfiglioli - 700CK Series

• [email protected]

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The Differences Between Travel Motors and Final Drive Motors

Travel Motors

A travel motor is a part of an excavator’s hydraulic drive system, whose power source is the machine’s main hydraulic pump. As a result of the travel motors’ power, the final drive is then able to use it and turn the power into torque. The travel motor is a key component in the function of an excavator by playing a major role in fueling the final drive motor. However, it doesn’t perform the same function as a final drive.

Final Drive Motors

Speaking of which, a final drive comprises many gears and is located adjacent to, and works in conjunction with, the excavator’s travel motor. The integrated final drive motor’s purpose is to provide enough power to allow an excavator to turn its tracks on a construction site. There are two key integrated components of a final drive motor: the hydraulic travel motor and the final drive gear box.

The differences between travel motors and final drive motors come down to their functions. While the two are related, it’s certainly important to know what sets them apart when getting new parts. When referring to a final drive motor, this typically means the hydraulic motor and the planetary gear hub, while a travel motor signifies only a hydraulic motor. If you are in need of Quality travel motors and final drive parts, Mini Final Drives is a great place to find the aftermarket excavator parts you are looking for top brands like Bobcat , John Deere, Caterpillar , and others.

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MiniFinalDrives.com, owned and operated by L&M HydraComm LLC, is an independent aftermarket distributor and it is not affiliated with any compact equipment manufacturer. Manufacturers' trademarked names, models, part numbers, symbols, and related descriptions are provided for reference only to help you with finding the right aftermarket replacement final drive for your machine. This reference information does not imply that any items for sale are the product of those referenced manufacturers and does not imply that L&M HydraComm LLC is an authorized source nor agent of the referenced machine manufacturers.

Final drive Sany SY210

Brand new, hybrid track motor (2 speeds – 1 speed possible) for crawler excavator Sany SY210. Complete track unit – final drive together with hydraulic motor.

3,036.00  €

• Description
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New travel device (travel motor / track motor) compatible with Sany (models: SY210). The whole product was designed and manufactured by ATM Hydraulic factory. This is a technologically advanced, highest quality travel unit. Fully repairable, spare parts like bearings, floating seals, gears are available and relatively cheap.

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US20060156716A1 - Travel control device for excavators - Google Patents

• USPTO PatentCenter
• USPTO Assignment
• Global Dossier

Classifications

• E — FIXED CONSTRUCTIONS
• E02 — HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
• E02F — DREDGING; SOIL-SHIFTING
• E02F9/00 — Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
• E02F9/20 — Drives; Control devices
• F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
• F16 — ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
• F16H — GEARING
• F16H61/00 — Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
• F16H61/38 — Control of exclusively fluid gearing
• F16H61/40 — Control of exclusively fluid gearing hydrostatic
• F16H61/42 — Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
• F16H61/423 — Motor capacity control by fluid pressure control means
• E02F9/22 — Hydraulic or pneumatic drives
• E02F9/2221 — Control of flow rate; Load sensing arrangements
• E02F9/2232 — Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
• E02F9/2235 — Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
• E02F9/2253 — Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
• E02F9/2278 — Hydraulic circuits
• E02F9/2285 — Pilot-operated systems
• E02F9/2292 — Systems with two or more pumps
• E02F9/2296 — Systems with a variable displacement pump
• F16H61/4069 — Valves related to the control of neutral, e.g. shut off valves
• F16H61/421 — Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves
• F16H61/46 — Automatic regulation in accordance with output requirements
• F16H61/47 — Automatic regulation in accordance with output requirements for achieving a target output speed

Definitions

• the present invention pertains to a travel control device for excavators and, more specifically, to an excavator travel control device for controlling a starting speed of an excavator operable with a low speed travel mode and a high speed travel mode.
• a crawler type hydraulic excavator one of typical heavy construction equipments, is provided with a travel control device as schematically illustrated in FIG. 1 .
• the travel control device includes a couple of main fluid pumps 101 , 102 each rotatingly driven by an engine 103 to discharge hydraulic flows.
• the hydraulic flows thus discharged are supplied to left and right travel motors 105 , 106 under a control of travel control spools 111 , 112 of a main control valve block 110 so that the travel motors 105 , 106 can be rotated to move the excavator forwards or rearwards.
• a manual travel control device 120 is provided to control the pressure and flowing direction of a hydraulic flow discharged by an auxiliary pump 104 , thus generating travel control pilot pressures (X 1 , X 2 , Y 1 , Y 2 ) which are to be applied to and shift the travel control spools 111 , 112 .
• Speed changing mechanisms 107 , 108 are respectively attached to the left and right travel motors 105 , 106 for lowering or raising the rotating speeds of the travel motors 105 , 106 .
• the speed changing mechanisms 107 , 108 are connected to the auxiliary pump 104 via a high speed signal line 117 and serves to increase the rotating speed of the travel motors 105 , 106 upon receipt of a high speed signal pressure from the auxiliary pump 104 .
• a high speed shifting valve 116 is provided on the high speed signal line 117 to open or close the high speed signal line 117 as a selection switch 115 is turned on or off.
• the travel speed is controlled not merely by two modes, i.e., a low speed mode and a high speed mode, but by three modes, i.e., a fixed low speed travel mode, a fixed high speed travel mode and an automatic high speed travel mode.
• the excavator is always started and stopped at a low speed in the fixed low speed travel mode but the starting and stopping occurs at a high speed in the fixed high speed travel mode.
• the excavator In the automatic high speed travel mode, the excavator normally moves at the high speed and is automatically shifted down to the low speed to produce an increased torque if the excavator encounters a great travel load. As soon as the travel load is reduced to below a predetermined value, the excavator returns back to the high speed travel condition.
• the operator usually drives the excavator faster in case where the excavator has to be moved long distance from one working place to another. In the event that there exists a need to finely control the movement of the excavator, as in case of conducting a work with a bulldozer blade while moving the excavator back-and-forth, the excavator should be moved slowly.
• one aspect of the present invention is directed to a travel control device for excavators, comprising: at least one main fluid pump and an auxiliary pump each for discharging a hydraulic flow; left and right travel motors driven by the hydraulic flow of the main fluid pump and respectively provided with speed changing mechanisms; travel control spools for controlling the hydraulic flow to the left and right travel motors; manual travel control devices for receiving the hydraulic flow from the auxiliary pump and supplying a travel control signal pressure to the travel control spools; a high speed shifting valve provided on a high speed signal line interconnecting the auxiliary pump and the speed changing mechanisms for cutting off or transmitting a high speed signal pressure to the speed changing mechanisms; a travel signal detection means for detecting the travel control signal pressure outputted from the manual travel control devices; and a shutoff valve provided on the high speed signal line in a serial relationship with the high speed shifting valve for closing the high speed signal line to keep the speed changing mechanisms in a low speed condition if the travel control signal pressure supplied from the travel signal detection means is no greater than a
• the travel signal detection means comprise a shuttle valve for sensing the travel control signal pressure outputted from the manual travel control devices.
• the shutoff valve be provided with a shutoff spool shiftable between a closing position and an opening position and a spring disposed at one side of the shutoff spool for resiliently biasing the shutoff spool into the closing position, and the travel control spools be provided with springs for biasing each of the travel control spools into a neutral position, the spring of the shutoff valve having a greater spring constant than the respective springs of the travel control spools.
• a selection valve be further provided on the high speed signal line in between the high speed shifting valve and the shutoff valve and a switch for, when activated, shifting the selection valve into a bypass position where a pump-side extension part of the high speed signal line upstream the shutoff valve is connected through a bypass signal line to a motor-side extension part of the high speed signal line downstream the shutoff valve.
• a travel control device for excavators comprising: at least one main fluid pump and an auxiliary pump each for discharging a hydraulic flow; left and right travel motors driven by the hydraulic flow of the main fluid pump and respectively provided with speed changing mechanisms; travel control spools for controlling the hydraulic flow to the left and right travel motors; electric travel control devices for generating an electric current in proportion to the amount of displacement thereof; a high speed shifting valve provided on a high speed signal line interconnecting the auxiliary pump and the speed changing mechanisms for cutting off or transmitting a high speed signal pressure to the speed changing mechanisms; a travel signal detection means for detecting the magnitude of the electric current outputted from the electric travel control devices; and a solenoid-operated shutoff valve provided on the high speed signal line in a serial relationship with the high speed shifting valve for closing the high speed signal line to keep the speed changing mechanisms in a low speed condition if the electric current detected by the travel signal detection means is no greater than a predetermined current value and for opening the high speed signal line to keep
• the travel control device enables a crawler type hydraulic excavator to start slowly every time regardless of the speed ratio selected in the process of preceding travel operations.
• FIG. 1 is a schematic fluid pressure circuit diagram showing a prior art travel control device for excavators
• FIG. 2 is a schematic fluid pressure circuit diagram showing a travel control device for excavators according to a first embodiment of the present invention.
• FIG. 3 is a schematic fluid pressure circuit diagram showing a travel control device for excavators according to a second embodiment of the present invention.
• a travel control device of the first embodiment includes a couple of main fluid pumps 1 , 2 and an auxiliary pump 4 each rotatingly driven by an engine 6 for discharging a hydraulic flow.
• the hydraulic flows discharged by the main fluid pumps 1 , 2 are controlled by a plurality of control spools, including left and right travel control spools 16 , 18 , in a main control valve block 8 and then supplied to a plurality of hydraulic actuators, including left and right travel motors 12 , 14 , to thereby actuate the hydraulic actuators.
• the hydraulic flow produced by the auxiliary pump 4 is supplied to manual travel control devices 20 , 22 through a fluid pressure line 5 . Responsive to manipulation by an operator, the manual travel control devices 20 , 22 reduces the pressure of the hydraulic flow produced by the auxiliary pump 4 and supplies to the pressure receiving parts of the travel control spools 16 , 18 a travel control signal pressures X 1 , X 2 , Y 1 , Y 2 whose magnitudes are proportional to the manipulation amounts of the manual travel control devices 20 , 22 .
• the travel control spools 16 , 18 are shifted in one direction by the action of the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 to supply the hydraulic flows of the main fluid pumps 1 , 2 to the travel motors 12 , 14 .
• Springs 16 a , 16 b , 18 a , 18 b are disposed at opposite sides of the travel control spools 16 , 18 so that they can resiliently bias the travel control spools 16 , 18 into their neutral positions and can counteract the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 applied to the opposite side of each of the travel control spools 16 , 18 .
• a relatively small magnitude of travel control signal pressures X 1 , X 2 , Y 1 , Y 2 are generated and applied to the pressure receiving parts on one sides of the travel control spools 16 , 18 .
• the travel control spools 16 , 18 remain not shifted until and unless the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 become greater than the biasing force of the springs 16 a , 16 b , 18 a , 18 b .
• the manipulation amounts of the manual travel control devices 20 , 22 are gradually increased to such an extent that the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 can overcome the biasing force of the springs 16 a , 16 b , 18 a , 18 b , the travel control spools 16 , 18 are shifted in one direction to open their flow passageways, thus allowing the hydraulic flow of the main fluid pumps 1 , 2 to be supplied to the travel motors 12 , 14 . This causes the excavator to move forwards or rearwards.
• speed changing mechanisms 13 , 15 that serve to shift the rotating speed of the travel motors 12 , 14 , i.e., the travel speed of the excavator, from a low speed to a high speed.
• the speed changing mechanisms 13 , 15 are in fluid communication with the auxiliary pump 4 through a high speed signal line 24 and a fluid pressure line 5 which is also connected to the inlet ports of the manual travel control devices 20 , 22 .
• the speed changing mechanisms 13 , 15 function to shift the travel motors 12 , 14 from the low speed to the high speed in response to a high speed signal pressure transmitted from the auxiliary pump 4 via the high speed signal line 24 . Absent the high speed signal pressure, the speed changing mechanisms 13 , 15 keep the travel motors 12 , 14 in a low speed operating condition.
• a high speed shifting valve 26 is attached to the high speed signal line 24 for cutting off or transmitting the high speed signal pressure to the speed changing mechanisms 13 , 15 depending on the presence or absence of a speed changing signal inputted from a high speed selection switch which is usually provided in a cabin of the excavator.
• the high speed shifting valve 26 is provided with a spool 26 a shiftable between a closing position and an opening position and a spring 26 b for normally biasing the high speed shifting valve 26 into the closing position.
• the spool 26 a of the high speed shifting valve 26 is shifted into the opening position.
• the speed changing mechanisms 13 , 15 receive the high speed signal pressure from the auxiliary pump 4 through the high speed signal line 24 to thereby shift the travel motors 12 , 14 into the high speed operating condition.
• the speed changing signal is removed from the high speed shifting valve 26 , the spring 26 b pushes the high speed shifting valve 26 into the closing position to cut off the high speed signal line 24 . Since the speed changing mechanisms 13 , 15 receive no high speed signal pressure from the auxiliary pump 4 in this state, the travel motors 12 , 14 are kept in the low speed operating condition.
• a travel signal detection means 32 is provided at the outlet sides of the manual travel control devices 20 , 22 for detecting the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 that the manual travel control devices 20 , 22 transmit to the travel control spools 16 , 18 .
• a shutoff valve 28 is provided for closing and opening high speed signal line 24 depending on the magnitude of the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 detected by the travel signal detection means 32 .
• the shutoff valve 28 is provided with a shutoff spool 28 a shiftable between a closing position and an opening position and a spring 28 b disposed at one side of the shutoff spool 28 a for resiliently biasing the shutoff spool 28 a into the closing position.
• the spring 28 b of the shutoff valve 28 has a greater spring constant than the respective springs 16 a , 16 b , 18 a , 18 b of the travel control spools 16 , 18 .
• the travel signal detection means 32 is composed of a plurality of shuttle valves for sensing the travel control signal pressure outputted from the manual travel control devices 20 , 22 .
• a selection valve 29 is provided on the high speed signal line 24 in between the high speed shifting valve 26 and the shutoff valve 28 .
• a selection switch 27 is connected to the selection valve 29 for, when activated or turned on, shifting the selection valve 29 into a bypass position where a pump-side extension part of the high speed signal line 24 upstream the shutoff valve 28 is connected through a bypass signal line 24 a to a motor-side extension part of the high speed signal line 24 downstream the shutoff valve 28 . If the selection switch 27 is deactivated or turned off, the selection valve 29 assumes a direct connection position where the high speed signal pressure of the auxiliary pump 4 is transmitted to the speed changing mechanisms 13 , 15 through the shutoff valve 28 .
• the travel control device for excavators of the present invention as described above operates as follows.
• the speed changing signal is applied to the high speed shifting valve 26 to thereby bring the high speed shifting valve 26 into the opening position.
• the selection switch 27 is kept turned off so that the selection valve 29 can connect the pump-side extension part of the high speed signal line 24 to the shutoff valve 28 and not to the bypass line 24 a .
• the high speed signal pressure of the auxiliary pump 4 is not transmitted to the speed changing mechanisms 13 , 15 unless the travel control signal pressure from the travel signal detection means 32 grows higher than a predetermined pressure value. This assures that the excavator makes slow start with no shock even though the high speed shifting valve 26 was shifted into the opening position in the preceding travel operation.
• the travel control spools 16 , 18 are first shifted prior to shifting of the shutoff valve 28 into the opening position.
• the hydraulic flows discharged by the main fluid pumps 1 , 2 are supplied to the travel motors 12 , 14 under the state that the speed changing mechanisms 13 , 15 keep the travel motors 12 , 14 in a low speed condition. This makes sure that the excavator is started slowly with no shock.
• shutoff valve 28 opens the high speed signal line 24 to allow the high speed signal pressure to be transmitted to the speed changing mechanisms 13 , 15 .
• an increased quantity of the hydraulic flows are fed to the travel motors 12 , 14 from the main fluid pumps 1 , 2 because the travel control spools 16 , 18 are further shifted by the increased magnitude of the travel control signal pressures X 1 , X 2 , Y 1 , Y 2 . This enables the excavator at a high speed.
• the travel control device of the second embodiment has the same configuration as that of the first embodiment except for the aspects set forth below.
• Electric travel control devices 20 , 22 e.g., electric joysticks, are employed for generating an electric current in proportion to the amount of displacement thereof.
• a travel signal detection means 32 is attached to the electric travel control devices 20 , 22 for detecting the magnitude of the electric current outputted from the electric travel control devices 20 , 22 .
• a solenoid-operated shutoff valve 28 is provided on the high speed signal line 24 in a serial relationship with the high speed shifting valve 26 .
• the shutoff valve 28 is adapted to close the high speed signal line 24 to keep the speed changing mechanisms 13 , 15 in a low speed condition, if the electric current detected by the travel signal detection means 32 is no greater than a predetermined current value, but to open the high speed signal line 24 to keep the speed changing mechanisms 13 , 15 in a high speed condition, if the electric current detected by the travel signal detection means 32 exceeds the predetermined current value.
• selection valve 29 and the bypass line 24 a of the first embodiment are not employed in the second embodiment.
• Other parts or components of the second embodiment are substantially the same as those of the first embodiment and therefore no description is offered in that regard.
• the travel control device of the second embodiment assures that the solenoid-operated shutoff valve 28 is kept closed at the time of small-extent manipulation of the electric travel control devices 20 , 22 , thus preventing the high speed signal pressure from being transmitted to the speed changing mechanisms 13 , 15 through the high speed signal line 24 . This helps avoid a possibility that the excavator is started abruptly against the operator's will and fallen into an uncontrollable condition.
• the travel control device of the present invention enables an excavator to start slowly every time regardless of the speed ratio selected in the process of preceding travel operations, owing to the fact that the travel control device is designed to keep travel motors in a low speed condition whenever the excavator initiate its travel.

Description

Claims ( 5 ), applications claiming priority (2), publications (2), id=36129853, family applications (1), country status (5), cited by (6), families citing this family (18), citations (5), family cites families (8).

• 2004-12-31 KR KR1020040117899A patent/KR101155718B1/en active IP Right Grant
• 2005-12-27 EP EP05028487A patent/EP1676964B1/en not_active Expired - Fee Related
• 2005-12-27 DE DE602005024659T patent/DE602005024659D1/en active Active
• 2005-12-29 US US11/322,276 patent/US7290390B2/en not_active Expired - Fee Related
• 2005-12-30 CN CNB2005100971270A patent/CN100567664C/en not_active Expired - Fee Related

Patent Citations (5)

Cited by (9), also published as, similar documents, legal events.

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PNC EXCAVATOR PARTS

Quality product to create win-win cooperation

Hitachi ZX330-3 Travel Device 9244944, 9256991 Gearbox,Travel

Item Details:

Nc No.: NC-TR45

Model: Hitachi ZX330-3,ZX350-3-AMS,ZX350H-3,ZX350K-3,ZX350LC-3,ZX350LCN-3

Part No.: 9244944, 9256991

Payment: ABC Bank,Paypal,Western Union, MoneyGram,TT Transfer

Description

Keywords: ZX330-3 Travel Device,Hitachi ZX330-3 Travel Device, ZX330-3 Travel Gearbox, ZX330-3 Final Drive w/o motor, ZX350LC-3 Travel Device

ZX330-3 Travel Device:

*ENTIRE GROUP TRAVEL DEVICE: 9244944 I[1] -TRAVEL DEVICE 9256991 ;for assembly of machine; 9256991[1] -TRAVEL DEVICE ;for transportation; 00.9251699 I[1] -MOTOR;OIL 9251477 ;for assembly of machine; 00.9251477[1] -MOTOR;OIL ;for transportation; 03.4066695 Y[1] -SEAL;GROUP 4664392 03.4664392[1] -SEAL;GROUP 04.4629674[2] -BRG.;ROL. 05.1033164[1] -DRUM 06.1033163[1] -SPROCKET 07.A590922[22] -WASHER;SPRING 08.J932265[22] -BOLT 10.3094717[1] -NUT 11.4470326[1] -PLATE;LOCK 12.J901225[2] -BOLT 14.1032599[1] -CARRIER 15.4621530[3] -SPACER 16.3103555[4] -GEAR;PLANETARY 17.4628768[8] -BRG.;NEEDLE 18.4269470[8] -PLATE;THRUST 19.4269452[4] -PIN 20.4207947[4] -PIN;SPRING 21.3103554[1] -GEAR;SUN 23.1032600[1] -GEAR;RING 24.J931640[34] -BOLT 26.1032598[1] -CARRIER 27.3103553[3] -GEAR;PLANETARY 28.4628766[3] -BRG.;NEEDLE 29.4284521[6] -PLATE;THRUST 30.4269451[3] -PIN 31.4197763[3] -PIN;SPRING 32.3103552[1] -GEAR;SUN 34.1032597[1] -CARRIER 36.3103551[3] -GEAR;PLANETARY 37.4455098[3] -BRG.;NEEDLE 38.4642993[6] -PLATE;THRUST 39.4269472[3] -PIN 40.4192020[3] -PIN;SPRING 41.2051884[1] -SHAFT;PROP. 43.1032596[1] -COVER 44.4277474[1] -PIN;STOPPER 45.4278168[1] -BRG.;BALL 46.930451[1] -RING;RETAINING 47.4609016[20] -BOLT;SEMS 48.4245797[3] -PLUG 51.+++++++[1] -NAME-PLATE 52.M492564[2] -SCREW;DRIVE

Motor& Gearbox Available Model:

Payment&  packing & shipping :.

A). TT transfer, Western Union, Paypal, Moneygram are acceptable.

B). Light goods inner box is neutral white with an strong outer box.Heavy goods wooden case with standard packing.If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

C). Delivery time: depends on items you buy, most electric parts can shiped within 1-3 working days .

D). DHL /Fedex /UPS /TNT/ARMEX/SF Express ,etc. normal express shipping way for small cargo. Russia,Kazakhstan, Ukraine Russia Special Line , Bangladesh,Myanmar,Vietnam ect, competitive shipping way no need you do customs clearance.Door to Door.

Call Or Message Us If You Have Any Questions, 24/7 On Service !

0086-18816892502 / <[email protected]> Gavin 0086-13660741003 / <[email protected]> Joanna

[contact-form-7 id=”310″ title=”Product Enquiry”]

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• 9148910 9134826 Hydraulic Travel Device Excavator Final Drive For Hitachi EX200-5 EX220-5

—— Mohammed

Large Image :  9148910 9134826 Hydraulic Travel Device Excavator Final Drive For Hitachi EX200-5 EX220-5

• Product Specifications

The EX200-5 travel device is an essential component of the Hitachi EX200-5 excavator's powertrain system. Also known as the final drive, travel device, or travel motor, it is responsible for transferring power from the excavator's hydraulic system to the tracks, enabling the machine to move and travel efficiently.

Here are the key features and functions of the EX200-5 travel device:

Hydraulic Motor: The travel device houses a hydraulic motor that converts hydraulic pressure generated by the excavator's main hydraulic pump into mechanical rotational force.

Reduction Gears: Within the travel device, reduction gears are used to convert the high-speed, low-torque power from the hydraulic motor into low-speed, high-torque power needed to drive the excavator's tracks.

Sprocket and Track Drive: The output shaft of the travel device is connected to the sprocket, which, in turn, drives the tracks of the excavator. The rotation of the tracks allows the machine to move forward or backward.

Two-Speed Travel: Some excavators, including the Hitachi EX200-5, may feature two-speed travel functionality. This means that the operator can switch between low-speed and high-speed modes for better control and maneuverability in different working conditions.

Durable Construction: The travel device is designed to withstand heavy loads, rough terrains, and harsh operating conditions commonly encountered in construction and excavation projects.

Regular Maintenance: Proper maintenance is crucial to ensure the longevity and reliable performance of the travel device. Regularly checking the oil levels, changing the hydraulic fluid, and inspecting for wear and tear are essential tasks.

The travel device/final drive is a critical component that contributes to the overall productivity and performance of the Hitachi EX200-5 excavator. Proper care and maintenance of this component will help extend the life of the excavator and ensure smooth and efficient operation on construction sites.

• Description

The Final Drive reducer gearbox is the last component in the Power Train with undercarriage drive system, producing the final speed reduction and torque increase.

Attributes: Heavy Duty Final Drives are designed to be rebuilt and reused.The belowing following gear components are included in the final drive: sun gear, planetary gear, carrier, ring gear, hub, motor housing, needle bearing, roller bearing, seal.

• How is order processed

1. Customers offer the part number, part name, model, quantity, data of items, delivery address and term

2. We quote the best price according to the requirement of customers.

3. Confirm the purchase order and pay the deposit.

4.We prepare and pack the goods.

5.Customers make the payment according to the Proforma Invoice once the goods get ready for delivery.

6. We deliver the goods with the packing list, commercial invoice, B/L and other documents requested

7.Track the transport and arrival about the goods.

8.Welcome to give us suggestion and feedback once arrival.

1. Warranty Type: We will replace the product that have quality problem.

2. Warranty Period: Supply 3, 6, 12 months warranty for the products from the date of arrival. Customer should check the items according to the order list after arrival. Contact with us and offer the data, photos of the problem items.

3. You need to pay for the replacement charge for following condition: * Wrong Order from customer. * Natural Disasters cause the damage. * Error installation. * The machine and the parts work over time and over load. * Lost by any condition. * Human element destroyed. * Corrode with rust during stock and running. * Warranty Expired.

4. Others They are the product easy to be rust away, please wrap them well. If there is any problem about the products, installation or maintenance, please contact with us any time.

• Other parts we can supply
• Supply for other brands of excavator

final drive ,

Excavator gearbox ,, final drive parts.

Contact Person: Mr. Paul

Tel: 0086-15920526889

Fax: +86-20-89855265

Part name: drive gear shaft

Part number: 0693015

Excavator model: EX150LC-5

Category: HITACHI Excavator final drive parts

Part name: Sun gear shaft

Part number: 207-27-71352 2072771352

Excavator model: PC270-7 PC290-7 PC300-7 PC300-8 PC360-7

Category: Excavator final drive parts

Application: KOMATSU Excavator final drive parts

Part name: Cover

Part number: 20Y-27-31150 20Y-27-31151 20Y2731150 20Y2731151

Model number: PC160-7 PC180-7 PC200-7 PC210-7

Application: Excavator front axle parts

Part name: Sun gear

Part number: 2194549 219-4549

Model number: M312 M313C M315C M316C

Part number: 165-5792

Excavator model: 311C 313D2 315C 315D 316E 318D 318D2

Type: Excavator travel reducer parts

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Travel Device Excavator Spare Parts Travel Gearbox Travel Motor Final Drive for Komatsu PC45

• Description
• Reviews (0)
• Packing&Shipping & Delivery
• Company Profile

Condition: New Applicable Industries: Building Material Shops, Machinery Repair Shops, Manufacturing Plant, Farms, Construction works Showroom Location: None Video outgoing-inspection: Provided Machinery Test Report: Provided Marketing Type: Ordinary Product Warranty: 1 Year Category: Construction Machinery Parts Equipment: Excavator Item Condition: New Application: Replacement Inner Packing: Wrap by Plastic Film Outer Packing: Carton, Plywood Case Packing Size: 600*600*680mm Item: PC45 Delivery: By Sea, Air, Carrier MOQ: No Limited Packaging Details: INNER PACKING: Wrap by plastic film, clear label for each item. OUTER PACKING: Carton or Plywood Case PACKING SIZE: Depend on packing type Port: Shanghai，China Travel Device Excavator Spare Parts Travel Gearbox Travel Motor Final Drive for Komatsu PC45

Products Description

Final Drive & Swing Components for Excavators: Planetary drive gears must withstand the high forces of torque generated by the engine and transfer these loads to move the equipment. All Power-trans gears and final drive gears are manufactured to precise tolerances for reliable operation. The manufacturing method includes a heat treatment process that increases bending strength, prevents case crushing and provides exceptional wear resistance for a long service life.

DESCRIPTION: 1. Completely, assembly, and ready to installed in your Excavator CAT E320C E320D. 2. Without MOTOR, already been installed the MOTOR SHAFT & MOTOR HOUSING. 3. All components are produced by us. 4. All new, undamaged. 5. Painted or Unpainted, depend on requirement 6. 90 days warranty, call or email with any questions. 7. Plywood Case Packing, free of fumigation 8. Deliver to worldwide by Sea, Air, or Carrier.

Why Choose Us

1. We are the manufacturer and own18000 m2 factory areas, good relationship with material suppliers, which make more competitive price and steady quality. 2. We have more than80 units advanced facilities for production. 3. We have 8 senior engineers with more than30 years experience on designing and machining. 4. Our sales term offer the efficient service for every customers. 5. We are the long term parts supplier for many famous companies. 6. We develop spare parts for old and new excavator models, and submit our latest products to customers every month so that to meet the market demand. 7. We have high market share in Oversea market and Domestic market, Southeast Asia 65%,Middle East 8%, North and South America 10%,Europe 8%, Russia 5%.

1. Warranty Type:We will replace the product which have quality problem. 2. Warranty Period:Supply 3 months warranty for the products from the date of arrival. Customer should check the items according to the order list after arrival. Contact with us and offer the data, photos of the problem items. 3. You need to pay for the replacement charge for following condition: * Wrong Order from customer. * Natural Disasters cause the damage. * Error installation. * The machine and reducer work over time and over load. * Lost by any condition. * Human element destroyed. * Corrode with rust during stock and running. * Warranty Expired. 4. Others They are the product easy to be rust away, please wrap them well. We just supply warranty for the products we are producing, except the Bearing, Seal, and some others we mention before order. If there is any problem about the products, installation or maintenance, please contact with us any time. We reserve the rights of final interpretation.

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How to choose power transmissions parts and industrial products which meet our requirement

What Products Do you sell ? 

We  are a group of factories, give customer one stop solution of power transmission and industrial products. We are in the position to supply wide range of products, including chains, sprockets, v-belt and v-belt pulleys, timing belt and timing belt pulleys, gears, speed reducers, motors, racks, couplings, and many other parts, like locking assembly, taper bushing, Chain guide, shaft collar, torque limiter, cam clutch, universal joint, motor base and motor slide, rod end, clevis, rubber mount, etc. We make special parts according to drawings and/or samples.

How to choose a gearbox which meets our requirement? You can refer to our catalogue to choose the gearbox or we can help to choose when you provide the technical information of required output torque, output speed and motor parameter etc.

What information shall we give before placing a purchase order? a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc. b) Housing color. c) Purchase quantity. d) Other special requirements.

What industries are your gearboxes being used? Our gearboxes are widely used in the areas of textile, food processing, beverage, chemical industry, escalator,automatic storage equipment, metallurgy, tabacco, environmental protection, logistics and etc.

What is the producing process?

Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, package.

How to control the products quality?

Combining advanced equipment and strict management, we provide high standard and quality bearings for our customers all over the world.

What is the transportation?

-If small quantity , we Suggest to send by express, such as DHL,UPS, TNT FEDEX. If large amount, by air or sea shipping.

Can we design packaging?

-Yes. Default is regular packing, and we can make customer's own packing.

Can you provide OEM service?

-Yes, we work on OEM orders. Which means size, quantity, design, packing solution, etc will depend on your requests; and your logo will be customized on our products.

Can you give me discount on Power Transmissions Parts and Industrial parts?

-Yes, of course. Pls. send me your Email, you'll get more

Q: Are You a trading company or a manufacturer?

A: We Are the factory and have our Own trading company

Q: How Can I get an offer?

A: please send US quotation information: drawings, materials, weight, quantity and requirements, we can accept PDF, ISGS, DWG, STEP file format. If you don't have the drawings, please send us the samples, we can also quote you according to your samples.

Q: What is your minimum order size?

A: it is usually 100 pieces, but a low quantity is acceptable under some special circumstances.

Q: Do you provide samples? Is it free or extra?

A: Yes, we can provide samples free of charge, but we don't pay the freight.

Q: What is the lead time for mass production?

A: honestly, it depends on the number of orders. Normally, if you don't need the tools, deposit them after 30 days or so.

Q: What if the parts don't Work?

A: we can guarantee the quality, but if it happens, please contact us immediately, take some photos, we will check the problem and solve it as soon as possible.

Q: What are your terms of payment?

A: payment is less than US $1000,100% in advance. Payment: $1000,50% wire transfer in advance, balance before shipment,Other Terms of payment are negotiable

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Travel Motor Repair Parts Kit HMGC32 for Hitachi Excavator EX200-1

Purchase options and add-ons.

• Part Number: HMGC32
• Application: for Hitachi Excavator EX200-1

Product Description

Part Number: HMGC32 Application: for Hitachi Excavator EX200-1

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