Paste filling and supporting integral hydraulic bracket

Abstract

The invention discloses a paste filling and supporting integral hydraulic bracket. The bracket comprises a front frame and a rear frame. The front frame comprises two front upright posts and a rear upright post. An upper connecting rod is H-shaped. The rear frame comprises two rear frame upright posts. An upper connecting rod of the rear frame is transversely l-shaped. The distance between inner sides of two branches of the H-shaped upper connecting rod is more than the width of the transversely l-shaped upper connecting rod of the rear frame. A balance hydraulic cylinder is hinged between the upper connecting rod of the rear frame and the top beam of the rear frame. A rear probing beam is hinged with the rear end of the top beam of the rear frame. A sleeve plate, a stretchable baffle anda stretchable baffle hydraulic cylinder are arranged on the base of the rear frame. According to the bracket disclosed by the invention, the bracket is in the form of front and rear frames and can beused for exploiting and filling processes simultaneously; the front frame is supported by adopting three upright posts, so that the problem of top beam unsteadiness generated when front and rear upright posts are different in height in the event of adopting four upright posts is avoided; the rear frame is supported by adopting two upright posts, so that a support structure is simplified, and the balance hydraulic cylinder is used for adjusting the horizontal position of the top beam of the rear frame; because the upper connecting rod of the front frame is H-shaped and the upper connecting rodof the rear frame is transversely l-shaped, when the bracket descends, the motion interference cannot be caused so that the height is convenient to adjust.

Description

technical field [0001] The invention relates to comprehensive mechanized coal mining face support equipment in coal mines, in particular to a hydraulic support, in particular to a hydraulic support integrated with paste filling and support. Background technique [0002] 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. In order to improve coal mining efficiency, filling and supporting integrated hydraulic supports are widely used at present. The front support is convenient for coal mining, and the rear support is convenient for filling. The Chinese Utility Model Patent "Hydraulic Support for Filling and Exploitation" (application date: February 6, 2007, authorized announcement date: January 16, 2008, authorized announcement number CN201007216Y) discloses a hydraulic support. It is supported by coal mining, and the rear end is supported b...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an integrated hydraulic support for filling and supporting with paste. The integrated hydraulic support for filling and supporting with paste can solve the problem that the four-column support of the filling support in the prior art easily leads to instability of the top beam. And the technical problem that the four-bar linkage mechanism of the front and rear split brackets will interfere when the bracket is lowered

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