Coal mining roadway supporting device having damping and buffering effects

Abstract

The invention discloses a coal mining roadway supporting device having damping and buffering effects. The coal mining roadway supporting device comprises two symmetrically arranged upright posts and an arched beam connected between the tops of the two upright posts, wherein rectangular plates fixed on the ground are arranged at the bottoms of the upright posts, and square grooves are welded on theupper surfaces of the rectangular plates. Steel balls are placed at the bottoms of the square grooves, and a plurality of first springs are evenly distributed on the inner walls of the square grooves, and are welded to the upright posts; A V-shaped rod located below the arched beam is welded to the upper ends of the upright posts, and the arched beam is connected with the V-shaped rod through hydraulic rods; and an arched steel plate is connected to the upper surface of the arched beam through a plurality of second springs which are arranged in a spacing mode. According to the supporting device, the damping and buffering effects can be achieved, the situation that the supporting device deforms and is damaged due to extrusion or strong vibration is avoided, the service life of the supporting device is prolonged, and arrangement work of lines in a roadway is facilitated.

Description

technical field [0001] The invention belongs to the technical field of roadway support, in particular to a coal mine mining roadway support device with shock absorbing and buffering functions. Background technique [0002] The roadway is a passage dug for mining lifting, transportation, ventilation, drainage, power supply, etc. during underground mining. The section shape of the roadway is mostly arched, trapezoidal or rectangular, and the surrounding rock is soft and round, oval or horseshoe-shaped. In the process of coal mining, it is necessary to support the roadway, and then need to use support devices. [0003] The underground coal mine roadway is a safe passage for production, transportation and pedestrians, and it is necessary to ensure absolute safety and relatively stable roadway protection. With the change and development of the times, the underground roadway support technology has been continuously updated and evolved in the practice of coal mine production. The ...

AI Technical Summary

Problems solved by technology

[0005] Based on the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a coal mine mining roadway support device with a shock absorbing and buffering effect, which can effectively resist the horizontal and vertical vibrations and avoid being squeezed or strong vibrations. The deformation and damage of the support device will prolong the service life of the support device and facilitate the arrangement of the internal lines of the roadway.

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