Folding type supporting device

Abstract

The invention discloses a folding type supporting device. The folding type supporting device comprises a left supporting plate, a left top plate, a right top plate and a right supporting plate, and is characterized by also comprising a left hydraulic cylinder, an upper hydraulic cylinder and a right hydraulic cylinder, wherein one end of the upper hydraulic cylinder is hinged with the left top plate and the other end of the upper hydraulic cylinder is hinged with the right top plate; the upper hydraulic cylinder is asymmetrically hinged on the left top plate and the right top plate. On the basis that stable supporting force is guaranteed, operation is simple and convenient, top leakage of a supported mine path is unlikely to occur and transportation is easy, the invention provides the folding type supporting device, which provides safe and reliable supporting shield for coal mining under the condition of a steeply pitching coal seam.

Description

technical field [0001] The invention belongs to the technical field of coal mine support machinery, in particular to a flexible support device for steeply inclined coal seams. technical background [0002] Coal mine support equipment is an important guarantee for coal miners to safely mine coal, especially in steeply inclined coal seam conditions, where the pressure from the roof (coal seam) is relatively high, and safety accidents caused by poor support performance occur from time to time. [0003] At present, the "flexible support coal mining method" is widely used in the mining of steeply inclined coal seams. This type of support structure is to process the I-beam into a polygon, and then connect the I-beam top beams together with steel wire ropes to form a conjoined support for the entire working face. This kind of support can basically provide support for mining in steeply inclined coal seams by adopting a pseudo-incline arrangement, and has good economic and social be...

AI Technical Summary

Problems solved by technology

[0004] Although this kind of support solves the support problem of the working face to a certain extent, so that the working face has a safer production environment, but this kind of support also has its obvious disadvantages

First, because the bracket arms of this kind of support are relatively thin, it is easy to leak the roof between the brackets and hurt people; second, because the working angle of the bracket of this kind of support is not adjustable, it has poor adaptability to the roof coal seam; Third, it has no hydraulic operation and control system and cannot be folded. It needs frequent disassembly and assembly and is not easy to carry, resulting in high labor intensity for workers; in addition, the steel wire rope is easy to wrinkle, deform and even break

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