Timbering equipment for coal mines

Abstract

The invention discloses timbering equipment for coal mines. The timbering equipment comprises a front row frame, a rear row frame, a hydraulic thrust cylinder and hydraulic props, wherein the front row frame comprises more than two front row top beams and more than two front row trimmers; the front row trimmers are arranged under the front row top beams side by side; one front row trimmer is connected with more than two front row top beams; the hydraulic props are arranged under the front row frame; the rear row frame comprises more than two rear row top beams and more than two rear row trimmers, wherein the rear row trimmers are arranged under the rear row top beams side by side, one rear row trimmer is connected with the more than two rear row top beams, and the hydraulic props are arranged under the rear row frame; the front row top beams and the rear row top beams are arranged at intervals, and gaps are arranged between the front row top beams and the rear row trimmers adjacent to the forward direction; and one end of the hydraulic thrust cylinder is connected with the front row frame, and the other end of the hydraulic thrust cylinder is connected with the rear row frame. A working surface adopting the timbering equipment has no empty-support phenomenon and has a large area for supporting a top plate.

Description

technical field [0001] The invention relates to the field of coal mining, in particular to a support device for coal mines. Background technique [0002] When coal mining is carried out, the working face end and the working face roadway need to use support equipment. [0003] At present, there are basically two types of support used in coal mines at home and abroad for the end of the working face and the roadway of the working face. One is a special end support belonging to the fully mechanized mining hydraulic support, which is only used for the end position. The other is the single pillar with I-beam as the advance roadway support. [0004] In the process of realizing the present invention, the inventors found that the prior art has at least the following problems: the special end bracket is very expensive and bulky. Small and medium mines cannot be used. However, single pillars and I-beams must be moved manually, and when they are used for end support, recycling is a ...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor has found that the prior art has at least the following problems: the cost of the special end bracket is very high, heavy

However, no matter whether it is the front and rear beams, or the side-by-side double beams, it cannot overcome the danger of a large area of ​​empty roof on the roof when any beam moves forward.

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