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Self-adaptive leveling method and device of hydraulic support top beam

A hydraulic support, self-adaptive technology, applied in mine roof support, earth square drilling, mining equipment, etc., can solve the problems of unable to realize self-adaptive leveling, unable to realize automatic control well, unable to realize automatic leveling, etc. To achieve the effect of automatic leveling control

Inactive Publication Date: 2014-07-02
CHINA UNIV OF MINING & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing hydraulic support system cannot realize automatic control well when the top beam is leveled
In the existing control method, the leveling is only realized in the single-frame hydraulic support control mode, but the automatic leveling cannot be realized. It still relies on manual control of the expansion and contraction of the balance cylinder to achieve the purpose of leveling the top beam
That is, under the existing automatic follow-up mode and group automatic control mode, and without changing the mechanical structure of the existing hydraulic valve, it is impossible to achieve adaptive leveling

Method used

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  • Self-adaptive leveling method and device of hydraulic support top beam
  • Self-adaptive leveling method and device of hydraulic support top beam
  • Self-adaptive leveling method and device of hydraulic support top beam

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] The method for self-adaptive leveling of the top beam of the hydraulic support includes a main program for self-adaptive leveling of the electro-hydraulic control system of the hydraulic support and a subroutine for self-adaptive leveling of a balance jack;

[0027] Such as figure 1 As shown, the working steps of the self-adaptive leveling main program of the hydraulic support electro-hydraulic control system are:

[0028] 1) Start to raise the column;

[0029] 2) Read the value of the column pressure sensor, compare the value, and save the smaller value;

[0030] 3) Judging whether the smaller value reaches the initial support pressure, if it is reached, stop the initial support, and enter the loading stage to continue to step 4; if it does not reach the initial support pressure, return to step 2;

[0031] 4) Call the self-adaptive leveling subroutine of the...

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Abstract

The invention discloses a self-adaptive leveling method and device of a hydraulic support top beam. A main controller monitoring the numerical value of a tilt sensor in real time and feeding results back to a hydraulic support electro-hydraulic system is adopted in the process that a support is controlled by the hydraulic support electro-hydraulic system to lift a column, real-time adjustment is carried out by the main controller according to the angle of tilt of the top beam, a jack starts to be adjusted and balanced when setting load is applied by the stand column, a blind-action probing method is adopted, the value of the tilt sensor is monitored in real time in the motion probing process so as to detect the state of the top beam, and when the numerical value of the tilt sensor is within a top beam balance error range, leveling is completed. By means of the self-adaptive leveling method and device, automatic leveling control of the hydraulic support top beam can be achieved under the existing automatic batch control and automatic machine following control modes on the premise that an existing mechanical hydraulic equipment structure is not changed.

Description

technical field [0001] The invention relates to an electro-hydraulic control system of a hydraulic support, in particular to a method and device for self-adaptive leveling of a top beam of a hydraulic support. Background technique [0002] At present, the existing hydraulic support system cannot realize automatic control well when the top beam is leveled. In the existing control method, the leveling is only realized in the single-frame hydraulic support control mode, but the automatic leveling cannot be realized. It still relies on manual control of the expansion and contraction of the balance cylinder to achieve the purpose of leveling the top beam. That is, under the existing automatic follow-up mode and group automatic control mode, and without changing the mechanical structure of the existing hydraulic valve, adaptive leveling cannot be realized. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention ...

Claims

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Application Information

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IPC IPC(8): E21D23/12
Inventor 姚新港冯帅王忠宾谭超周晓谋刘新华闫海峰刘继东
Owner CHINA UNIV OF MINING & TECH
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