Novel air return way advance support

Abstract

The invention discloses a novel air return way advance support. The novel air return way advance support comprises an integrated base and an integrated top beam. A cross head hinge joint point is arranged in the middle of the integrated top beam. Stand columns are arranged between the front portion of the integrated top beam and the integrated base and between the rear portion of the integrated top beam and the integrated base respectively. A covering beam is arranged between the hinge joint point of the integrated top beam and the rear portion of the integrated base. The front portion and the rear portion of the integrated top beam are arranged into a front and back symmetrical structure with the cross head hinge joint point as the center. Wall protection plates are arranged at the front end, the rear end and the two sides of the integrated top beam respectively. Multiple novel air return way advance supports are sequentially arranged in an air return way in a front and back mode. The integrated bases of every two adjacent supports are connected through a push-pull oil cylinder. The novel air return way advance support can adapt to the working condition that a bottom plate of a roadway is not smooth, the top protection area can be enlarged, and the personnel safety is protected.

Description

technical field [0001] The invention relates to a coal mine hydraulic support, in particular to a novel return airway leading support. Background technique [0002] At present, with the popularization of coal mining mechanization and the emphasis on the safety of channel support, more and more roadway advanced supports are used in modern mines. [0003] Such as figure 1 , figure 2 As shown, in the prior art, the general form of the return airway leading support is in the form of a left and right frame, which is composed of an anchor frame, a front frame and a rear frame. The front frame and the rear frame are both front and rear split hinge structures. The anchor bracket at the front controls the direction of travel of the stand. This kind of support is better used when the roof and bottom of the return air tunnel are in good condition. If the roof of the tunnel is uneven, it will cause poor connection of the top beam of the support, uneven structural force, and damage t...

AI Technical Summary

Problems solved by technology

This kind of support is better used when the roof and bottom of the return air tunnel are in good condition. If the roof of the tunnel is uneven, it will cause poor connection of the top beam of the support, uneven structural force, and damage to some structural parts in severe cases.

If the floor of the roadway is uneven, it will cause the left and right racks to be skewed, and the stand will be unstable. In severe cases, the racks will fall down and affect the normal production order.

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