Full-automatic electro-hydraulic control system for hydraulic support

Abstract

A full-automatic electro-hydraulic control system for a hydraulic support comprises an electric-electronic device and hydraulic equipment, wherein the electric-electronic device comprises an underground central computer, a server, a support controller, sensors and cables; the hydraulic equipment comprises an electro-hydraulic main control valve bank, a working face high-pressure back flushing filter station and a support back flushing filter; the position signal and the direction signal of a shearer in the working face are transmitted by the shearer to the electro-hydraulic control system server for the hydraulic support or the main unit of the underground central computer, the server or the main unit of the underground central computer controls the hydraulic support to actuate according to the operating data of the shearer, meanwhile, the electro-hydraulic control system for the hydraulic support also transmits the actuation situation of the hydraulic support to the shearer, and the shearer carries out automatic control according to the actuation situation of the hydraulic support. The full-automatic electro-hydraulic control system for the hydraulic support, provided by the invention, can accurately realize the automatic actuations, such as automatic middle following and advancing of the hydraulic support, push sliding and atomizing, two-end coal cutting, inclined cutting feed and triangular coal cutting, of the support.

Description

technical field [0001] The invention belongs to the field of coal mining equipment, in particular to a hydraulic support centralized control system. Background technique [0002] Since the 1980s, high-yield and high-efficiency technologies in the world's major coal-producing countries have developed rapidly, and fully-mechanized mining face automation technologies have emerged as the times require. Hydraulic support is an important supporting equipment in fully mechanized mining face, and its degree of automation will directly affect the high production efficiency and automation degree of fully mechanized mining face. [0003] At present, domestic fully-mechanized mining equipment manufacturers are focusing on the automatic control technology of fully-mechanized mining face, and the automation of fully-mechanized mining face has made great progress, but basically cannot effectively solve the problem of triangular coal mining and shearer oblique cutting; at the same time , m...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic fully-mechanized mining equipment manufacturers are focusing on the automatic control technology of fully-mechanized mining face, and the automation of fully-mechanized mining face has made great progress, but basically cannot effectively solve the problem of triangular coal mining and shearer oblique cutting; at the same time , many fully mechanized mining face hydraulic supports automatically follow the machine and move the frame through the wireless infrared device of the coal mining machine to transmit the position and direction information of the coal mining machine to the support controller, and the support controller automatically drives the electro-hydraulic valve according to the pre-programmed program To carry out corresponding actions such as lowering the column, moving the frame, pushing and sliding of the support, and realizing the automatic follow-up movement of the support

The error of this wireless infrared positioning method is large, and it is easy to cause the malfunction of the support. These problems have seriously affected the real realization of the automation of the fully mechanized mining face with few or no people.

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