Fully mechanized excavation face automatic anchor protection, slide rail type stepping temporary support bracket

Abstract

The invention belongs to the technical field of underground coal mine fully-mechanized excavation face temporary supports, in particular to a fully-mechanized excavation face automatic anchoring and sliding rail type walking temporary support. The temporary support overcomes the defects of the traditional underground coal mine temporary support. The temporary support comprises an inner side support set and an outer side support set; the inner side support set and the outer side support set respectively comprise a left support and a right support; a left top beam and a right top beam of each support set are connected into a whole through a front beam and a rear beam; the left support and the right support of the inner side support set are arranged on the inner sides of the left support and the right support of the external side support set; the beams and smooth beams of the inner side support set and the outer side support set are crossed; push-pull oil cylinders are arranged on left and right base seats and beams of the inner side and outer side support sets; height difference exists between the top of the beam and the smooth beam of each support set; and the top of the beam corresponding to the bottom of the smooth beam of the other support set is provided with a carrier roller. By the temporary support, reliable and flexible supporting conditions are provided for high-efficiency excavation of the working face, and the temporary support has significant on the mechanical mining process of the excavation face, and improvement of excavation speed and production efficiency.

Description

technical field [0001] The invention belongs to the technical field of temporary support for fully mechanized excavation faces in coal mines, and in particular relates to an automatic anchor protection for fully mechanized excavation faces, and a sliding rail type stepping temporary support bracket. Background technique [0002] Before the rapid excavation temporary support bracket was developed, the temporary supports commonly used in the underground excavation working faces of most coal mines in China were as follows: one is the temporary support of the hanging ring piercing type front probe beam; the other is the airborne temporary support of the roadheader The third is to use multiple rows of single hydraulic props and high-strength I-beam beam support methods. Although these methods have relieved the pressure of the head-on support of the excavation working face to a certain extent and improved the support condition of the working face, there are still many deficiencies...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned problems existing in the existing underground temporary support of coal mines, the present invention provides an automatic anchor support for fully mechanized excavation face, and a sliding rail type stepping temporary support bracket

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