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Control valve and control system of crawler chassis driven by hydraulic motor to travel

A technology of crawler chassis and hydraulic motor, which is applied to servo motor components, control devices, fluid pressure actuating devices, etc., can solve the problems of high cost and increased cost of variable motors, and achieve the effects of high cost performance, low price, mature and reliable

Inactive Publication Date: 2019-06-18
SHANDONG KINGELEVATOR GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the cost of the variable motor is too high, which increases the cost

Method used

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  • Control valve and control system of crawler chassis driven by hydraulic motor to travel
  • Control valve and control system of crawler chassis driven by hydraulic motor to travel
  • Control valve and control system of crawler chassis driven by hydraulic motor to travel

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] See figure 1 , The present invention provides a technical solution: a hydraulic motor-driven control valve group and control system of a crawler chassis, including a speed control module 1 and a logic control module 2, characterized in that: the speed control module 1 includes To limit the maximum working pressure of the system and protect the safety valve of the pump set and the entire hydraulic system①; it is used to make the pum...

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Abstract

The invention discloses a control valve and a control system of a crawler chassis driven by a hydraulic motor to travel. A speed regulation module and a logic control module are involved, wherein thespeed regulation module comprises a safety valve, a pressure compensator, a damping hole and a proportional speed regulation valve, wherein the safety valve is used for limiting the maximum working pressure, protecting a pumping set and a whole hydraulic system; the pressure compensator is used for enabling the pumping set to supply oil in the pressure and flow state required by the system all thetime, and redundant oil liquid returns to an oil tank; the damping hole is used for enabling extremely small flow of oil to exist in a valve to return through the damping hole, the consistence of thetemperature of the oil in the valve is ensured so as to increase the response speed of the system; and the proportional speed regulation valve is used for controlling the continuous output of the oilflow through continuous changing of an opening port of a proportional electric signal control valve. All elements in the control valve are all conventional valve members, are mature, reliable, universal, low in price and high in cost performance, and the control valve and the control system can obtain remarkable economic benefits.

Description

Technical field [0001] The invention relates to the technical field of hydraulic control, in particular to a control valve group and a control system of a crawler chassis driven by a hydraulic motor. Background technique [0002] The crawler walking chassis is adapted to the flexibility and passability of complex ground, and is widely used in construction, agriculture and forestry. The tracked chassis is characterized by large steering and climbing resistance, large driving force and slow speed. The driving force of straight walking is small, and fast driving is required. In order to achieve high torque when climbing and turning, and high speed when driving on flat ground, the current crawler driving system uses a variable motor to realize the function of high and low speed driving. When climbing, steering and other conditions require high torque, the motor is the maximum Displacement, can provide the maximum driving force, and when fast driving is required, the variable motor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/06B60K17/10
Inventor 付风超方新陈召建朱光磊
Owner SHANDONG KINGELEVATOR GRP CO LTD
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