Special-shaped support equipment for ends of fully mechanized coal face

Abstract

The invention provides special-shaped support equipment for ends of a fully mechanized coal face, and solves the problems of complicated support processes, great operation labor intensity, low supportstrength, poor safety and influence on the advance speed of the fully mechanized coal face in the prior art. The special-shaped support equipment comprises a front support bracket composed of a top beam and a base, and is characterized in that a swing front beam is arranged at the front end of the top beam of the front support bracket, and a front beam hydraulic cylinder is arranged between the swing front beam and the top beam of the front support bracket; a bracket moving hydraulic cylinder is arranged between a base of a rear top cutting bracket arranged behind the front support bracket and a base of the front support bracket; a top beam of the rear top cutting bracket is connected with the top beam of the front support bracket through a middle telescopic beam; and a top cutting deviceis arranged at the rear part of the rear top cutting bracket. The special-shaped support equipment is reasonably designed, is compact in structure, can perform full-section support and blockage on asuspending roof area of the tail of a transport machine, so as to reduce convergence and deformation of a laneway, can perform forced caving on a roof, and achieves low labor intensity, high support efficiency and safety and reliability in use.

Description

technical field [0001] The invention belongs to the technical field of underground support equipment in coal mines, and relates to a device for strengthening support in the end area of ​​a working face, in particular to a device capable of performing full-section support and sealing on the empty roof area at the tail of a transporter, reducing The roadway converges and deforms, and the roof can be forced to caving, with low labor intensity and high support efficiency, using safe and reliable special-shaped support equipment at the end of the fully mechanized mining face. Background technique [0002] With the upgrading and innovation of high-yield and high-efficiency coal mining face equipment, the propulsion capacity of the coal mining equipment has been greatly improved; and the underground roadway support technology for coal mining has been artificially and passively supported for a long time. It is also gradually developing towards the concept of high-load, high-reliabil...

AI Technical Summary

Problems solved by technology

However, for the coal mining face with a hard coal seam roof, the collapsed roof in the area of ​​the end of the working face and behind the top cutting line in the roadway, because it cannot be broken and collapsed for a long time, it is easy to cause serious safety accidents, so it is necessary to carry out compulsory inspection. Caving operation

Most of the existing operation methods are manual close-range operation, or methods such as buried explosive blasting to force the roof to be lowered; this traditional forced lowering method has low operating efficiency and poor safety

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