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Coal mine underground integral hydrostatic driving vehicle steering wheel steering device and control system

A technology of hydrostatic drive and steering device, which is applied to the steering control, power steering mechanism, fluid steering mechanism and other directions installed on the vehicle. good effect

Active Publication Date: 2020-08-07
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the integrated transport vehicle designed for the coal mine belt transportation roadway is only 1.4 meters wide. Due to the limitation of the roadway size, the length of the vehicle is required to be less than 5 meters. Drive axle, unable to achieve differential steering

Method used

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  • Coal mine underground integral hydrostatic driving vehicle steering wheel steering device and control system
  • Coal mine underground integral hydrostatic driving vehicle steering wheel steering device and control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides an integral hydrostatic driving vehicle steering wheel steering device in a coal mine, including a driving bevel gear disposed at the end of a steering column of the steering wheel and a screw-controlled pressure valve; the screw-controlled pressure valve includes a valve body, a valve core 101, and a return spring 102. Steering valve core driving rod 103, driving screw 104 and driven bevel gear 105; the valve body has a valve core cavity, the front end is provided with a light hole and a driving rod installation cylinder extending forward, and the side wall is provided with a valve core cavity. The connected P port, A port and T port; the inner wall of the drive rod installation cylinder is provided with a guide groove; the valve core 102 is sealed and slidably installed in the valve core cavity, and a hydraulic oil circulation groove is provided in the circumferential direction, and the rear end is connected to the rear end of the valve body. A...

Embodiment 2

[0045] This embodiment provides an integral hydrostatic drive vehicle steering wheel steering control system in a coal mine, including a hydraulic oil tank 1 , an oil suction filter 2 , a left closed pump variable oil cylinder 3 , a left closed pump 4 , and a left charge pump 5 , Left fuel charge safety valve 6, Left closed pump variable control valve 7, Left fuel charge check valve 8, Left fuel charge valve group 9, Fuel charge filter 10, Left forward and backward control handle 11, Left drive pressure gauge 12, steering wheel 14, steering column 15, right drive pressure gauge 17, right forward and backward control handle 18, right closed pump variable control valve 19, right closed pump 20, right travel drive motor 21 , Right closed pump variable oil cylinder 22, right charge pump 23, right charge safety valve 24, right charge check valve 25, right charge valve group 26, left travel drive motor 27 and embodiments 1. The integral hydrostatic drive vehicle steering wheel steer...

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PUM

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Abstract

The invention provides a coal mine underground integral hydrostatic driving vehicle steering wheel steering device and a control system. The device comprises a driving bevel gear and a screw control pressure valve which are arranged at the tail end of a steering column of a steering wheel; the screw control pressure valve comprises a valve body, a valve core, a steering valve core driving rod anda driving screw; wherein the valve body is provided with a valve core cavity, an unthreaded hole and a driving rod mounting cylinder are arranged at the front end, and a port P, a port A and a port Tare arranged on the side wall; a guide groove is formed in the inner wall of the driving rod mounting cylinder; the valve element is installed in the valve element cavity in a sealed and sliding modeand circumferentially provided with a hydraulic oil circulation groove, and a reset spring is arranged between the rear end of the valve element and the rear end of the valve body. A guide block is arranged on the side surface of the steering valve core driving rod, and a threaded hole is formed in the front end of the steering valve core driving rod; a driven bevel gear is arranged at the front end of the driving screw, and the rear end of the driving screw is in threaded connection into a threaded hole of the steering valve element driving rod. Walking control and steering control of the vehicle are separately operated, so that the vehicle is easier and more convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of steering control of a hydrostatic drive vehicle in a coal mine, and specifically discloses a steering wheel steering device and a control system of an integral hydrostatic drive vehicle in a coal mine. Background technique [0002] At present, the major coal mining countries in the world have recognized many advantages of the trackless auxiliary transportation method, which not only improves the efficiency, but also reduces the labor intensity. Articulated vehicles are commonly used in coal mine underground vehicles. The steering gear is used to control the expansion and contraction of the steering cylinder at the hinge to realize the steering of the vehicle. The integrated transport vehicle designed for the underground belt transport tunnel in the coal mine is only 1.4 meters wide. Due to the limitation of the size of the tunnel, the length of the vehicle is required to be less than 5 meters. The integra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B62D5/08B62D3/02B62D1/04B60K20/02
CPCB60K20/02B62D1/04B62D3/02B62D5/062B62D5/08
Inventor 马艳卫陈利东李智伟王晓范江鹏贾二虎赵瑞萍仇博杨建勇兰春亮刘德宁樊瑞龙韦建龙何景强李再有王爱玲
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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