A kind of advanced support bracket for comprehensive mechanized excavation and its application method

Abstract

The invention discloses an advanced support bracket for comprehensive mechanized excavation and its use method, which comprises a main bracket, an auxiliary bracket and a working platform. It can be raised and lowered on the inner side of the main support and located below the main support; the front end of the top guard plate of the main support is also equipped with a telescopic front beam along the direction of excavation; the working platform includes a platform body, vertical pillars and horizontal hydraulic cylinders, The platform body is arranged to expand and contract along the excavation direction under the action of the horizontal hydraulic cylinder; the vertical pillar is telescopically arranged at the front end of the platform body, and is supported between the platform body and the roadway floor. The advanced support bracket and usage method for comprehensive mechanized excavation can timely support the roadway roof exposed when the roadheader cuts, and can realize multiple advances in one working cycle, significantly increasing the excavation distance and improving the roadway roof. the excavation efficiency.

Description

technical field [0001] The invention belongs to the technical field of temporary support for underground fully mechanized excavation in coal mines, in particular to an advanced support bracket for comprehensive mechanized excavation and a use method thereof. Background technique [0002] In the roadway excavation construction of the coal mine underground working face, the cantilever type roadheader and the single bolter drilling machine are generally used in conjunction with each other. In the construction, the operation process of "one excavation and one anchor" must be strictly implemented, and the stagger distance must be shortened. As a result, the fully-mechanized excavator frequently drives in and out, and the start-up rate is low. Workers need to carry the single anchor drilling rig back and forth. The net laying mainly depends on the workers stepping on the escalator and holding the anchor net for laying. The efficiency is low, the level of single entry is poor, and ...

AI Technical Summary

Problems solved by technology

[0006] Although the above two support structures can realize the self-movement of the support and the advanced support of fully mechanized excavation in a cycle, the equipment still needs to be laid by workers stepping on the escalator and holding the anchor net by hand when laying the net, which takes up a lot of personnel and auxiliary equipment. The working time is long, the operating safety of the operator is poor, and the tunneling efficiency is low

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