Self-adaptive contact type side supercharging device for mine tunnel filling

Abstract

The invention discloses a self-adaptive contact type side supercharging device for mine tunnel filling. The self-adaptive contact type side supercharging device comprises a one-way elastic limiting type jacking device, an unpowered sliding type unfolding device, an unfolding jacking device and a supporting and tamping device. The invention belongs to the technical field of mine tunnel filling extrusion, and particularly relates to a self-adaptive contact type side supercharging device for mine tunnel filling. Through the unpowered sliding type unfolding device and the unfolding jacking device, the force of the front tamping device exceeding the rear tamping force is used as driving force to drive the unfolding assembly to expand and unfold, and granular filling materials are extruded from the side face; under the condition that no active driving device exists, the technical effect that the unfolding assembly is automatically expanded and unfolded in the front face tamping process is achieved, and the existing problem that the filling supporting strength is affected due to the fact that the side face of the granular filling material cannot be tamped is solved; and meanwhile, through a one-way elastic limiting type jacking device, the movement direction of the barb teeth of the telescopic column is limited through a sliding stop sliding block capable of automatically resetting.

Description

technical field [0001] The invention belongs to the technical field of mine tunnel filling and extrusion, in particular to an adaptive contact type side pressurization device for mine tunnel filling. Background technique [0002] The underground coal mining face is often located hundreds of meters underground. If large-scale mining is carried out underground, a goaf will be formed at the bottom, and the rock and soil layers in the upper layer of the goaf will gradually sink under the action of gravity. Some will also cause surface subsidence; therefore, in order to avoid natural disasters in the later period, artificial blasting is often used to make it collapse first. [0003] However, when there are cities or other surface buildings that are not suitable for subsidence on the upper surface, the structural strength of the goaf is often improved by filling to prevent it from sinking; the coal mining face that needs to be filled is often integrated behind the traditional hydr...

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a kind of self-adaptive contact type mine filling which can be used for side tamping of mine filling, can be deployed without power, and cannot be retracted after deployment. Side supercharging device; in order to omit the traditional active driving device, the present invention creatively proposes an unpowered sliding type deployment device and a deployment top support device based on the principle of division and pre-reaction, using the force of the front compacting device to tamp backwards as The driving force drives the expansion assembly to expand and expand, and squeezes the granular filling material from the side. Without any active driving device, the technical effect of automatic expansion and expansion of the expansion assembly during the frontal compaction process is realized, overcoming the granular filling material. The existing problem that the side of the filling material cannot be tamped, which affects the support strength of the filling

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