Supporting and filling integrated six-column hydraulic bracket

Abstract

The invention provides a supporting and filling integrated six-column hydraulic bracket, comprising a protection side, a front top beam, a rear top beam, a front stand column, a middle stand column, a rear stand column, an upper connecting rod, a front connecting rod, a rear connecting rod and a base, wherein the lower end of the upper connecting rod is located in front of the upper end of the upper connecting rod; the tail end of the base is hinged with a double-stage retractable tamping mechanism; the double-stage retractable tamping mechanism comprises a swing beam body, a first-stage retractable beam, a second-stage retractable beam and a swing beam body jack; the front end of a cover plate of the second-stage retractable beam is hinged with one end of a waste rock baffling plate; and a waste rock jack is hinged between the middle of the waste rock baffling plate and the cover plate of the second-stage retractable beam. The double-stage tamping mechanism hinged with the back end of the base can be used for rotating the whole mechanism for an angle under the effect of the swing beam body jack to tamp different positions; the first-stage retractable beam and the second-stage retractable beam can stretch out for a certain length under the effect of respective jacks to realize the tamping of different depths; and the waste rock baffling plate is hinged with the front end of the cover plate of the second-stage retractable beam so that waste rocks dropping from a supporting plate can be baffled by swinging the waste rock baffling plate front and back, and the normal operation of the tamping mechanism is guaranteed.

Description

technical field [0001] The invention relates to protection equipment for comprehensive mechanized coal mining working faces in underground coal mines, in particular to a supporting and filling integrated six-column hydraulic support. Background technique [0002] my country is rich in coal resources, fully mechanized mining equipment is mature, and coal mining technology is becoming more and more perfect. With the shortage of energy, the pace of coal mining in my country is accelerating, and more and more mines are facing the problem of resource depletion. The problem is that my country has liberated the "three-down" coal pressing by adopting traditional strip mining, relocating villages, filling mining and other technical measures to improve the coal recovery rate. However, with the increase of mining depth, the increase of village relocation costs and the improvement of filling technology, filling mining technology has become a trend of vigorous development. The existing h...

AI Technical Summary

Problems solved by technology

The existing hydraulic support usually separates the functions of support and filling, and respectively realizes the cover of the working face and the filling of the goaf; and the use of gangue filling technology has its own particularity. If the gangue is directly accumulated in the goaf, the filling Not dense, prone to collapse of the filling area, causing safety problems; therefore, hydraulic supports with tamping mechanisms have appeared

A six-column filling disclosed in the Chinese utility model patent "a six-column supporting coal mining filling hydraulic support" (application date December 4, 2009, authorization announcement date August 18, 2010, authorization announcement number CN 201554482U) The support hydraulic support has a tamping mechanism at the rear of the base, but gangue often falls during the transportation of gangue, which affects the operation of the tamping mechanism, and even makes the tamping mechanism unable to operate normally; and the tamping mechanism is only set A telescoping beam that cannot effectively tamp at different depth locations

At the same time, due to the limitation of the structure of the existing six-column support, its front and rear are not connected, which is not convenient for the operator to observe the front and rear working areas, which affects the operator's work

The existing hydraulic support does not adopt measures to protect the operator. When coal falls from the front of the support, the operator may be injured

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