Top adjusting mechanism of tunneling immediate support device

Abstract

The invention relates to a top adjusting mechanism of a tunneling immediate support device, which effectively solves the problems that the top beam support angle of a side frame can not be independently adjusted and the top connecting capacity is poor in the prior art; the top adjusting mechanism of the tunneling immediate support device comprises a side frame with a top frame of an immediate support device of a comprehensive tunneling machine; the technical points are that: the top beam of the side frame is composed of two groups of cross beams and cross top beams which are articulated with an articulating bracket, two ends of the cross beam are fixed with the side frame, the articulating end of an upper connecting rod and a lower articulating rod of the articulating bracket is articulated to the expansion end of a hydraulic cylinder at the middle part of the cross beam, two ends of the cross top beam, which are articulated with side baffle plates, are respectively provided with articulating holes, connecting lug plates at two ends of the cross beam are respectively provided with articulating holes corresponding to the articulating holes of the cross top beam. The structure distribution is rational, the assembly and disassembly and maintenance are convenient, the usage is safe and reliable, the adjustment is convenient, the support is stable, flexible support of the top beam of the side frame to a special-shaped tunnel section can be met, the adaptive angle change range is large and flexible, support quality of the tunnel top plate and the tunneling operating efficiency can be remarkably improved.

Description

technical field [0001] The invention relates to an adjustment mechanism for the top beam of a support device used in roadway excavation operations and cooperating with a comprehensive mechanized roadheader, especially a timely support device for tunneling that can adapt to changes in the angle of the roadway roof within a certain range Top adjustment mechanism. It belongs to the field of mining machinery manufacturing and application. Background technique [0002] With the widespread use of comprehensive mechanized roadheaders (hereinafter referred to as "mechanized roadheaders") for underground mining in coal mines, the efficiency of roadway excavation has been greatly improved compared with the traditional "drilling and blasting" operation method. However, due to the influence of rock conditions on the roof of the roadway, intermittent circulation operations are generally used, and its efficiency is very low, so that the excavation operations cannot take advantage of the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a top-adjusting mechanism for a timely support device for excavation, which effectively solves the problems in the prior art that the support angle of the top beam of the side frame cannot be independently adjusted and the problem of poor top-connecting ability

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