Landing beam sliding hydraulic support system for coal mine

Abstract

The invention relates to a landing beam sliding hydraulic support system for a coal mine, which comprises a main support beam, a main beam supporting device, side matching beams, side beam supporting devices, a main beam connecting beam and a side beam connecting beam, wherein the middle part of the main beam connecting beam is connected under the main support beam through a movable connecting mechanism and is not disengaged from the main support beam, and both ends of the main beam connecting beam are slidably connected under the side matching beams through slidable connecting mechanisms andare not disengaged from the side matching beams; both ends of the side beam connecting beam are connected under the side matching beams through movable connecting mechanisms and are not disengaged from the side matching beams, and the middle part is connected under the main support beam through a slidable connecting mechanism and is not disengaged from the side matching beams; and the main support beam and the side matching beams interactively move under the traction of a hydraulic control device. The support solves the problems that the traditional hydraulic support can not simultaneously overcome the head drop phenomenon in the support moving process and can not efficiently support uneven top plates, the traditional support deforms due to uniform pressure, the support moving work is complex, and the like.

Description

technical field [0001] The invention relates to a coal mine hydraulic support device, in particular to a combined top beam sliding hydraulic support system. Background technique [0002] The upper and lower ends of the coal mining face and the support along the groove have always been the focus and difficulty of safe coal mining. At present, there are mainly two forms of the end of the coal mining face and the support along the groove at home and abroad: one is the self-moving end Head bracket support, and the second is single-column beam or single-column hinged beam joint support. Among them, the self-moving end support is bulky and heavy, the pedestrian space is small, and transportation and installation are very difficult. Therefore, most coal mines do not use this method or rarely use this method; The protection form is adopted by most coal mines because of its advantages of flexibility, convenience, and low cost. However, the operation procedure of this method is compl...

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is that the existing hydraulic support cannot simultaneously solve the phenomenon of "bow head" of the hydraulic support due to the pressure of the roof during the moving process, cannot provide effective support for the uneven roof, and the hydraulic support is deformed due to uneven pressure And the cumbersome work of moving the frame and other problems

[0016] Furthermore, the present invention also solves the problem of adjusting the moving direction of the hydraulic support according to the roadway during the moving process, and at the same time solves the phenomenon of roof leakage caused by the forward movement of the supports one by one, and realizes full-time monitoring of the roof. Sealed to ensure construction safety

Images