Continuous temporary canopy guarding device for continuous miner, as well as continuous miner

Abstract

The invention discloses a continuous temporary canopy guarding device for a continuous miner, as well as a continuous miner. The device comprises a rolling canopy guarding part, wherein the rolling canopy guarding part is fixed on a rack of the continuous miner through a stand column structure; the rolling canopy guarding part comprises a rack body, a closed track ring, a first roller, a second roller and an elastic supporting structure; the first roller and the second roller are respectively hinged with two ends of the rack body; the closed track ring is sleeved on the first roller and the second roller; the first roller and the second roller are in rolling connection; a plurality of guide cylinders are fixed on the rack body, and are connected with the elastic supporting structure; the elastic supporting structure is in rolling connection with the closed track ring; and the closed track ring is a part contacted with the top plate of a tunnel. According to the continuous temporary canopy guarding device, a naked top plate which is cut can be continuously supported by heading equipment, damage on the top plate caused by repeated loading and unloading when the heading equipment is displaced can be prevented, anchor bolt supporting operation can be carried out at the rear part of the continuous miner to create condition for cutting and supporting parallel operation, and the heading efficiency is high.

Description

technical field [0001] The invention relates to a continuous mining machine, in particular to a continuous temporary roof protection device for the continuous mining machine and the continuous mining machine. Background technique [0002] my country's resource endowment determines that coal will remain the main energy source in my country for a period of time to come. 90% of my country's coal production is underground mining, and the safe and efficient tunneling of roadways is an important condition to ensure underground coal mining. Coal mine safety regulations stipulate that empty-top operations are strictly prohibited. After the roadway is excavated, the three-dimensional stress state of the surrounding rock is broken, and the roof stratum is no longer stable. Therefore, the support work after excavation must be carried out under temporary support. The traditional temporary support methods such as point-column type need to manually transport the individual pillars to th...

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Problems solved by technology

[0003] The invention aims to solve the problems of low mechanization of temporary support, high labor intensity, poor safety, and damage to the roof caused by repeated loading and unloading of the roof during tunnel bolt support operations, and provides a continuous temporary support for continuous mining machines. Roof guards and continuous miners

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