Electrohydraulic control system for coal mine roof bolter

Abstract

The invention belongs to the technical field of anchor bolt support used for underground coal mine, and specifically relates to an electrohydraulic control system for a coal mine roof bolter, which solves the problem that a hydraulic control system of an existing roof bolter is complicated, is high in failure rate, is troublesome in automation and remote control, and is low in work efficiency. Thesystem includes an explosion-proof electro-hydraulic proportional reversing valve, an explosion-proof electric proportional pressure reducing valve, a control box, a receiver, a remote controller, arotational speed sensor, a pressure sensor, a displacement sensor, a power supply, an operation box, and an electric control part. The electrohydraulic control system is used for controlling motion ofthe bolter, the operation box and the remote controller are used for operation, a drilling action is completed with one button, an anchoring action is completed with one button, the labor intensity of workers is reduced, an operation position is relatively flexible, remote control and automation control are achieved, a labor environment is improved, and work efficiency is improved.

Description

technical field [0001] The invention relates to an electro-hydraulic control system of a coal mine rock bolter, belongs to the technical field of rock bolters, and is applicable to the field of electrohydraulic control. Background technique [0002] With the substantial increase in the production capacity of the fully mechanized mining face, the number of mining roadways has increased significantly, but the level of excavation roadways has not been correspondingly improved, and the excavation ratio is out of balance. When excavating the roadway, the three processes of excavation, transport and support cannot be coordinated and synchronized. The process of excavation and transport waits for the support process, which becomes the main factor affecting the speed of roadway excavation. [0003] At present, most of the rock bolt rigs used in underground coal mines use hand-held pneumatic drills, hand-held hydraulic drills or airborne hydraulic rock drills. The position of the ope...

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Problems solved by technology

[0004] In order to solve the problems that the existing rock bolt rigs have high operating intensity, the drilling process cannot be adjusted in real time according to the working conditions, and it is not convenient for remote and automatic control, etc., the present invention provides a rock bolt motor with simple structure, high degree of automation, and button operation. liquid control system

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