A hydraulic self-moving end protection bracket with a bolter

Abstract

The invention provides a hydraulic self-traveling tip protecting support with a roof bolter, belongs to the technical field of tunneling, and mainly solves the problems that current tip protecting supports do not have roof bolters and support front-end coal cleaning devices in the prior art. The hydraulic self-traveling tip protecting support comprises a top support device, a support moving device, a side wall protecting device and a support position adjusting device. The hydraulic self-traveling tip protecting support is characterized by further comprising the head-on roof bolter, a retreat stopping device, and a coal cleaning device. The top support device comprises a front longitudinal beam, a rear longitudinal beam, a front extending beam, a slideway longitudinal beam, a crossbeam, a support column and an adjusting support column, wherein the front longitudinal beam is connected with the rear longitudinal beam through a universal joint, the front extending beam is hinged to the front longitudinal beam, the slideway longitudinal beam comprises a front slideway longitudinal beam and a rear slideway longitudinal beam, and the crossbeam is hinged to the slideway longitudinal beam. A longitudinal beam is fixedly connected with the crossbeam. A support column piston head is hinged with a top beam. The top beam comprises a front top beam and a rear top beam. The support moving device comprises beam moving jack and a column moving jack.

Description

Technical field [0001] The invention belongs to the technical field of roadway excavation, and specifically relates to a hydraulic self-moving end protection bracket with a bolt drill. Background technique [0002] The existing temporary support methods mainly include: front beam type, roadheader airborne temporary support, staggered self-moving advanced support device, of which the first two have the shortcomings of small bearing capacity and limited protection area; The movable advance support device has a large setting force and can support the entire roadway section. However, each time the frame is moved, it must be ensured that the top beam of one group of supports can only fall and move forward when the top beam of the other group supports the roof. There will be the danger of falling frame, and no matter which set of beams is connected to the top, it will provide a support to the top plate, causing certain damage to the anchor support that has been constructed. The degree ...

AI Technical Summary

Problems solved by technology

[0002] Existing temporary support methods mainly include: front probe beam type, roadheader airborne temporary support, staggered self-moving advanced support device, the first two of which have the disadvantages of small bearing capacity and limited protection area; staggered self-moving The movable advance support device has a large initial support force and can support the entire roadway section, but each time the frame is moved, it must be ensured that the top beam of one group of brackets supports the top plate tightly before the other group can fall and move forward. There will be a danger of falling down, and no matter which group of beams is connected to the roof, it will support the roof once, causing certain damage to the bolt support that has been constructed. The degree of damage cannot be observed with the naked eye, and the bolt The uncertainty of such implicit support is very unfavorable for the safe use of the roadway in the later stage

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