Unit type hydraulic support and supporting system

Abstract

The invention provides a unit type hydraulic support and a supporting system, and relates to the field of mine protection devices. The unit type hydraulic support comprises at least three stand columns, and top beams are connected to positions between the top end of each stand column and the top ends of at least two other stand columns. The unit type hydraulic support is high in active supporting capacity for a top plate and can adapt to the pressure display of the top plate, during use, the plurality of unit type hydraulic supports can be arranged in the extending direction of a roadway, the unit type hydraulic support at the rearmost end can be moved to the foremost end along with advancing of a fully mechanized coal mining face, forepoling is formed on the top plate at the foremost end, the other unit type hydraulic supports are kept in original positions, and therefore by using the unit type hydraulic support, the top plate can be continuously and stably supported, repeated supporting on the top plate is effectively avoided, disturbance borne by the top plate is small, deformation is slow and small, the intact condition of a section of the roadway is advantageously kept, and in addition, the overall displacement is beneficial to meeting the progress requirement of an efficient working face.

Description

technical field [0001] The invention relates to the technical field of mine protection devices, in particular to a unitary hydraulic support and a support system. Background technique [0002] The advance support of the fully mechanized mining face is one of the key points and difficulties in the protection of the fully mechanized mining face. With the increase of the mining intensity, the acceleration of the advance speed, the increase of the number of fully mechanized mining equipment, and the improvement of the degree of automation of fully mechanized mining equipment, there are also more personnel, Due to factors such as complex procedures, on-site production has further increased the requirements for the reliability of the end of the fully mechanized mining face and the advance support. [0003] The fully mechanized mining face is affected by mining, and there will be stress concentration areas in the two lanes, and the severely affected section is within tens of meters...

AI Technical Summary

Problems solved by technology

[0004] The first purpose of the present invention is to provide a unit type hydraulic support to solve the problems in the prior art when the hydraulic support of the support system is pushed forward , frequent disturbance of the stress-concentrated roof may easily cause technical problems such as roof instability, sinking or even roof fall

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