Mining double energy absorption anti-shocking beam

Abstract

The invention belongs to the field of mining safety equipment, and particularly relates to a mining double energy absorption anti-shocking beam. A lower layer energy absorption beam (3) with the same length as those of a hydraulic support top beam (4) and a rectangular cross section is fixed on the rigid hydraulic support top beam (4) for mining; an upper layer energy absorption anti-shocking square beam (1) with the same width as those of the lower layer energy absorption beam (3) and a square frame shaped cross section is fixed on the lower layer energy absorption beam (3); an upper layer energy absorption anti-shocking saddle beam (2) with a saddle-shaped cross section is fixed on the lower layer energy absorption beam (3) and in the upper layer energy absorption anti-shocking square beam (1); the top part of the upper layer energy absorption anti-shocking saddle beam (2) is internally fixed and connected with the top part of the upper layer energy absorption anti-shocking square beam (1). The mining double energy absorption anti-shocking beam can realize the functions of large elastoplasticity compressive deformation and abdication, quick reduction of external impact force, and efficient absorption of impact energy, and plays the role of protecting the safety of field personnel and other production equipment.

Description

technical field [0001] The invention belongs to coal mine safety equipment, in particular to a mine-used double energy-absorbing anti-shock beam. Background technique [0002] Rockburst 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. Simply speaking, rock burst is the sudden destruction of coal and rock mass. The phenomenon is like the explosion of a large amount of explosives contained in the coal and rocks. The coal and rocks are suddenly thrown out, causing breakage of the brackets, roof collapse of the roof, blockage of the roadway, and injury to personnel, accompanied by loud noises and vibrations of the coal and rock mass. [0003] With the rapid development of my country's national economy, the demand for coal continues to increase, but shallow coal resources are increasingly depleted, and deep resource mining is imminent. Complex and changeab...

AI Technical Summary

Problems solved by technology

[0004] At present, the anti-erosion support methods mainly include bolts, U-shaped steel, shotcrete support, shed-cable coordinated support, etc., which can basically meet the safety requirements of the roadway support system under static mine pressure, but there are support structures Sudden instability and damage due to poor ability to bear impact loads

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