Electrohydraulic control system for coal mine roof bolter

An electro-hydraulic control system and technology of bolt drilling rigs, which are applied in the automatic control system of drilling, installation of bolts, drilling equipment, etc., can solve the problem that the drilling process cannot be adjusted in real time according to the working conditions, the operation intensity is high, and it is inconvenient to remote and automate. control issues

Pending Publication Date: 2019-06-07
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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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 i...

Method used

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  • Electrohydraulic control system for coal mine roof bolter

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Embodiment Construction

[0017] The technical solutions of the present invention will be further described in more detail below in conjunction with specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] like figure 1 as shown, figure 1 It is a structural schematic diagram of an electro-hydraulic control system of a coal mine rock bolter provided by the present invention. It consists of explosion-proof electro-hydraulic proportional reversing valve 1, explosion-proof electric proportional pressure reducing valve 2, control box 3, receiver 4, remote control 5, speed sensor 6, pressure sensor 7, displacement sensor 8, power supply 9, and operation box 10. The explosion-proof electro-hydraulic proportional...

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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...

Claims

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Application Information

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IPC IPC(8): E21B44/00E21D20/00
Inventor 左岗永丁永成乔彦华王佃武颉志军王威李永安郑吉王富强闫金宝张维果王静仇卫建
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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