Constant-pressure self-moving type advanced-support hydraulic support

Abstract

The invention relates to a constant-pressure self-moving type advanced-support hydraulic support. The constant-pressure self-moving type advanced-support hydraulic support is composed of an inner beam, outer beams, transverse beam assemblies a, hinge structures a, hydraulic supports, support bases, transverse beam assemblies b, connecting and supporting transverse beams, supporting transverse beams, an advancing jack and hinge structures b. According to the constant-pressure self-moving type advanced-support hydraulic support, the two outer beams and one inner beam support and contact a top plate; the tops of the supports are correspondingly connected with the connecting and supporting transverse beams and the lower parts of the supporting beams through the hinge structures a; the two outer beams are welded into a U-shaped whole through the transverse beam assemblies a at the two ends of the connecting and supporting transverse beams; the inner beam is welded into an inverted-T-shapedwhole through the transverse beam assemblies b on the middle parts of the supporting transverse beams; and the connecting and supporting transverse beams and the supporting transverse beams are correspondingly connected with the two ends of the advancing jack through the hinge structures b. During the advanced-support process, the constant-pressure self-moving type advanced-support hydraulic support can automatically move the support and lift the support under the condition of constant pressure, and the problems of inclination of the support, pressing of the support, drilling to the bottom andthe like are avoided; and the structure is simple, the operation is convenient, the support moving efficiency is high, the stability is high, and the safety is high.

Description

technical field [0001] The invention relates to the technical field of roadway support, in particular to a constant-pressure self-moving advanced support hydraulic support. Background technique [0002] During the mining process of the working face, the advanced support pressure of the working face and the residual support pressure of the mining roadway, the two forces are superimposed, and the mine pressure appears severe, resulting in serious deformation and damage of the surrounding rock of the mining roadway, and difficult roadway support. It is necessary to strengthen the support of the roadway in advance within the influence range of the advance support pressure of the working face, and implement the single pillar and the beam for auxiliary support in the overtime severe mining area. At present, single pillars and beams are used for auxiliary support in coal mines, and the supporting effect is obvious, but there are still some problems. During the advancement of the wo...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the defects of the above-mentioned existing advanced support equipment, that is, the moving frame of a single pillar needs to be manually disassembled and transported, and the moving efficiency is low, the labor intensity is high, the stability is poor, the safety is low, and it is easy to cause movement deflection Or the support is tilted and the adaptability is not strong; it is easy to cause the bottom of the press frame or the base, resulting in low frame moving speed and reduced mining efficiency of the working face; during the frame moving process, the frequent pressure relief and boosting of the leading hydraulic props on the roadway roof will cause the roof surrounding rock to break. Bring safety hazards to construction workers; there are problems such as complex structure, difficult operation, large volume, and large space occupation, which lead to unobstructed mining roadway and affect mining roadway ventilation, transportation, pedestrians, etc.

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