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Integral hydrostatic driving vehicle steering wheel steering device and control system in underground coal mine

A technology of hydrostatic drive and steering device, which is applied to steering control, fluid steering mechanism, power steering mechanism and other directions installed on the vehicle, which can solve the problem of inability to realize differential steering, and achieve flexible turning radius, convenient operation and control. The effect of turning radius

Active Publication Date: 2021-08-13
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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  • Integral hydrostatic driving vehicle steering wheel steering device and control system in underground coal mine
  • Integral hydrostatic driving vehicle steering wheel steering device and control system in underground coal mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This example provides a coal mine well integral hydrothermal pressure-driven vehicle steering wheel steering device including a active cone gear and a screw control pressure valve disposed on the steering column end of the steering wheel; the screw control pressure valve includes a valve body, a spool 101, a reset spring 102, the steering spool 103, the drive screw 104 and the driven beater gear 105; the valve body has a valve core chamber, the front end is provided with a light hole and a driving rod mounting tube extending forward, and the side wall is provided with the valve core cavity. Connect the P port, the A port and T port; the inner wall of the drive rod mounting tube is provided with a guide groove; the spool 102 seals the slide mounted in the valve core chamber, and there is a hydraulic oil flow groove in the circumferential direction, the rear end and the valve body rear end. There is a reset spring 102; the steering spool drive rod 103 passes through the drive...

Embodiment 2

[0045] This example provides a coal mine in a coal mine steering wheel steering control system including a hydraulic oil tank 1, a suction filter 2, a left closed pump variable cylinder 3, a left closed pump 4, a left replenishing pump 5 , The left replenishment safety valve 6, the left closed pump variable control valve 7, the left feed single direction valve 8, the left oil supply valve set 9, the replenish filter 10, the left side forward retreat handle 11, Left drive pressure Table 12, steering wheel 14, steering column 15, right drive pressure table 17, right side forward backward control handle 18, right closed pump variable control valve 19, right closed pump 20, right side drive motor 21 , The right side closed pump variable cylinder 22, the right side replenishing pump 23, the right side replenishing safety valve 24, the right oil supply single direction valve 25, the right oil supply valve set 26, the left travel drive motor 27 and the example 1 Coal mine underground int...

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PUM

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Abstract

The present invention provides an integrated hydrostatic drive vehicle steering wheel steering device and control system in coal mines. The device includes an active bevel gear arranged at the end of the steering column of the steering wheel and a screw control pressure valve; the screw control pressure valve includes a valve body, a valve core, Steering spool driving rod and driving screw; the valve body has a spool cavity, the front end is provided with a light hole and a driving rod installation cylinder, and the side wall is provided with P ports, A ports and T ports; the inner wall of the driving rod installation cylinder is provided with guide grooves ;The spool is sealed and slidably installed in the spool cavity, with a hydraulic oil flow groove arranged in the circumferential direction, and a return spring is set between the rear end and the rear end of the valve body; the drive rod of the steering spool passes through the drive rod installation tube and the light hole, and the side A guide block is provided, and a threaded hole is provided at the front end; a driven bevel gear is provided at the front end of the driving screw rod, and the rear end is threadedly connected in the threaded hole of the steering valve core driving rod. The device and system operate separately the walking control and the steering control of the vehicle, so that the manipulation of the vehicle is easier and more convenient.

Description

Technical field [0001] The present invention belongs to the technical field of the steering control of the coal mine well, and is disclosed in a coal mine head integral hydrostatic pressure driving vehicle steering wheel steering device and a control system. Background technique [0002] At present, many of the majority of the main mining countries in the world have more recognized by many advantages of a non-targeted auxiliary transportation. It has improved efficiency and reduces labor intensity. Under the coal mine, the vehicle is commonly hinged vehicle, and the steering of the steering cylinder at the hinged tank is controlled by the steering device to realize the steering of the vehicle. For the integral transport vehicle design in the coal mine underground, only 1.4 meters wide, due to the limit of the roadway, the vehicle length is required to be less than 5 meters, and the integrated static hydraulic drive vehicle is walking, because there is no hinged and no Drive the b...

Claims

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Application Information

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Patent Type & Authority Patents(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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