Fully mechanized caving face along-track end bracket

Abstract

A face-end support for the track channel of a fully-mechanized caving face is composed of an anchor support (1), a fore support (2), a face-end support (3), and a tail-end support (4). The anchor support has a four-pillar and four-connection-rod structure and includes an internal and an external supports, wherein both the internal and the external supports are composed of a top beam, a pedestal, two pillars and a four-connection-rod mechanisms. The fore support includes 3 to 5 groups, and each group has an eight-pillar structure and includes an internal and an external supports, wherein both the internal and the external supports are composed of a hinged top beam, a hinged pedestal, four pillars, a four-connection-rod and single-swing-rod mechanism, and a forepoling beam. The face-end support includes 1 to 3 groups, and each group has a four-pillar and four-connection-rod structure and includes an internal and an external supports. The tail-end support has a six-pillar hinge beam structure. An adjusting jack is arranged between the top beams of the internal and the external supports and the pedestal of each support. The face-end support solves the problems that the anchor support has difficulty in changing the pillars and is not easy to bear offset loads and that the distance between pedestals of the internal and the external supports is not easy to be adjusted. Accordingly, the face-end support has more reasonable force bearing capacity, and can improve the support ability and the stability of the support. Two kinds of step pitch moving supports reduce repeatedly supporting. The face-end support is suitable for channels with large pressure and large deformation along hollow tracks.

Description

technical field [0001] The invention relates to an end bracket of a fully mechanized caving face, in particular to a rail end support of a fully mechanized caving face suitable for the end support of the track along the groove of the mechanized caving face and the advance support. Background technique [0002] At present, the end support of the fully mechanized caving face and the advanced support of the level road generally adopt the traditional intensive support method of "cross" top beam or "one-shaped beam" combined with a single hydraulic prop. This method is slow and efficient. Low cost, large number of employees, high labor intensity and poor work safety. It does not match with the modern fully mechanized caving equipment and becomes a weak link and "bottleneck" in the development of fully mechanized top coal caving mining technology. The end of the track in the fully mechanized caving face, especially the end of the track along the empty track, due to the large infl...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages that the anchoring bracket of the existing rail-side end bracket of the fully mechanized caving face is not easy to change the column underground and cannot bear unbalanced loads, and the distance between the bases of the inner and outer frames of the leading bracket cannot be adjusted, and further improve the supporting capacity of the entire bracket and Stabi

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