Self-moving anti-impact tunnel hydraulic support

Abstract

The invention relates to a self-moving anti-impact tunnel hydraulic support. The self-moving anti-impact tunnel hydraulic support comprises top beams and bases, wherein two multifunctional anti-impactdevices are symmetrically connected to the bases; the top ends of the multifunctional anti-impact devices are fixedly connected with hydraulic stand columns; and the top ends of the hydraulic stand columns are hinged to the lower sides of the top beams; side guard plates are arranged on two sides of the top beams, the side guard plates are hinged to the top beams, the lower surfaces of the top beams are fixedly connected with installation blocks, the installation blocks are hinged to turnover jacks, and the free ends of the turnover jacks are hinged to the other sides of the side guard plates; the bases are further fixedly connected with the installation blocks, lower connecting rods are movably hinged to the installation blocks, the top ends of the lower connecting rods are hinged to inclined beams, and the top ends of the inclined beams are hinged to the lower sides of the top beams. The self-moving anti-impact tunnel hydraulic support has the beneficial effects that the turnover jacks can drive the side guard plates to rotate during working, so that the angles of the side guard plates are changed to obtain better protection effect; and meanwhile, the excellent anti-impact performance of the multifunctional anti-impact devices enables the anti-impact effect of the whole device to be better.

Description

technical field [0001] The invention relates to the technical field of hydraulic supports, in particular to a self-moving anti-scouring roadway hydraulic support. Background technique [0002] Rock burst is one of the major disasters encountered in coal mining. It is a dynamic phenomenon characterized by sudden, sharp and violent damage caused by the release of deformation energy of the coal and rock mass around mine shafts and stopes. my country's coal resources are relatively rich, and the proven reserves account for about 11% of the world's total coal reserves, but most of the coal reserves are in the deep. 53% of. Shallow coal resources are becoming increasingly depleted, and deep mining is an inevitable trend in the development of the coal industry. With the increase of mining depth, the ground stress increases non-linearly, and the composition and structure characteristics, deformation and failure characteristics, energy accumulation and release characteristics, and e...

AI Technical Summary

Problems solved by technology

However, most of the current roadway supports are not designed from the perspective of anti-shock, and the ability to resist shock loads is limited, which cannot meet the mine support requirements of rock burst; moreover, the top beams of the current supports are mostly parallel structures, which is not conducive to circular or semicircular roadway supports. protect

Images