Fully mechanized working faces track along end head bracket

Abstract

The invention provides a comprehensive caving working face along-rail face-end support, mainly comprising a face-end support(4), 3 to 6 groups of forepolings and an anchor support(1), wherein the face-end support(4) is the chock-shield support; each group of forepoling comprises two racks, that is, formed by the inner and the outer side racks arranged on both sides of the along-rail and the rack adjusting lifting jack(11) arranged between top beams of the inner and the outer side racks; the inner and the outer side racks of the forepolings both comprise articulated roof bars, articulated bases, upright columns, four-bar linkage mechanisms and front beams, etc. The anchor support, which is arranged in front of the forepolings, has the structure of integrated base and split top beam; the upright columns are the four-upright columns which are sleeved by elastic rings and rigid guide holders. The anchor support, the forepolings and the face-end support are orderly connected by pull-move lifting jacks arranged between bases of the anchor support, the forepolings and the face-end support. The invention has the advantages of realizing the advance support of the along-rail face end in self-motion mode, lowering labor intensity, improving working efficiency and safety; the stepping-type forward lead of the invention makes relative small area of empty support and little roof convergence,thereby the invention is particularly suitable for the big deformation of the gob-side entry driving rail sublevel.

Description

technical field [0001] The invention relates to a support for the end of a fully-mechanized caving face, in particular to a fully-mechanized caving face rail-aligned end support suitable for arranging track slots along the gob side and for advance support. stand. Background technique [0002] With the rapid development of fully mechanized top coal caving technology, the use of high-power coal mining units, large-capacity and high-reliability scraper conveyors and automatic control systems for fully mechanized mining face, the level of mechanization and automation equipment for coal mining face is becoming more and more advanced. high. However, the two ends of the fully mechanized caving face are still maintained in the form of cross top beams and single pillars. Not only the labor intensity of the workers is high, but the downtime of the shearer at the end of the working face is prolonged, and more seriously, the risk of material return at the end is relatively high, which...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the existing rail alignment end consisting of multiple supporting and shielding brackets that are advanced to strengthen the support bracket when the frame is moved, the empty top area is large and the roof sinking is large, the invention provides a fully mechanized caving face rail alignment end Bracket, it can not only replace the single pillar and the cross-hinged top beam to realize the self-moving rail end and advance support, reduce the labor intensity of workers, improve work efficiency, but also adopt the step forward moving method, the empty roof area is small, and the roof The subsidence is small, which can meet the requirements of large deformation along the track along the gob-side roadway

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