Speedy drivage forepoling

An advanced support and fast technology, applied in mine roof support, mining equipment, earthwork drilling and mining, etc., to reduce labor intensity of workers, reduce repeated support, and improve space safety

Active Publication Date: 2015-01-28
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the safety problem of the advance support of the existing exc

Method used

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  • Speedy drivage forepoling
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  • Speedy drivage forepoling

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Embodiment Construction

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

[0026] The rapid excavation step forward support is mainly composed of inner and outer support groups, beams, longitudinal beams, cantilever beams, idlers, push-pull cylinders, front beam jacks, cantilever jacks, hydraulic systems, etc. The two sets of support groups are respectively passed by two left and right supports The two beams connect the two top beams as a whole. The beams of each group of brackets are arranged with longitudinal beams and idlers. friction. The front end of the longitudinal beam of the inner support group has a front beam and a cantilever beam. Push-pull oil cylinders are respectively arranged on the left and right bases and beams of the inner and outer two bracket groups. The inner and outer support groups are mainly composed of a four-bar linkage mechanism, and the base has a large grounding area, which can form a r...

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Abstract

The invention belongs to the technical field of temporary support of a fully mechanized drivaging face of an underground coal mine, particularly relates to a speedy drivage forepoling and solves the safety problem of the forepoling of the existing heading face. The speedy drivage forepoling comprises an inner side bracket group and an outer side bracket group, wherein each of the inner side bracket group and the inner side bracket group comprises a left bracket and a right bracket; the left bracket and the right bracket of the inner side bracket group are arranged on the inner sides of the left bracket and the right bracket of the outer side bracket group; crossbeams and longitudinal beams of the inner side and outer side bracket groups are arranged alternately; a cantilever beam is arranged at the front ends of the longitudinal beams of the inner side bracket group; push-pull oil cylinders are respectively arranged on left and right bases and the crossbeams of the inner and outer side bracket groups; a height difference exists between the tops of the crossbeams and the bottoms of the longitudinal beams of each bracket group; carrier rollers are arranged in positions, corresponding to the bottoms of the longitudinal beams of the other bracket group, of the tops of the crossbeams of one bracket group. According to the invention, top plates for full faces can be supported easily, timely and actively, and safety management for the top plates of a mine is facilitated.

Description

technical field [0001] The invention belongs to the technical field of temporary support for fully mechanized excavation faces in coal mines, and in particular relates to a rapid excavation advance support. Background technique [0002] Temporary advance supports commonly used in most coal mine underground excavation working faces in China include: one is the temporary support of the hanging ring piercing type front probe beam; the other is the temporary support device mounted on the roadheader; the third is the use of multi-row monomer Hydraulic prop plus high-strength I-beam beam support method, etc. Although these methods have relieved the pressure of the head-on support of the excavation working face to a certain extent and improved the support condition of the working face, but in the actual use process, the support force is still small, and the roadway roof is repeatedly supported, and the labor intensity of the workers is high. There is a greater hidden danger to the...

Claims

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Application Information

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IPC IPC(8): E21D23/04
CPCE21D23/0004E21D23/04
Inventor 李刚郭文孝周凯李莉赵帅王本林张银星郭振兴宋涛
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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