Automatic bolt mesh laying and connection excavation temporary support device

Abstract

The invention belongs to the technical field of temporary supports for underground fully mechanized excavation faces of coal mines, and particularly relates to an automatic bolt mesh laying and connection excavation temporary support device, which solves the current problem that the efficiency of high-performance excavators cannot be sufficiently exerted due to the frequent occurrence of injuries caused by waste rocks dropping from roofs. The automatic bolt mesh laying and connection excavation temporary support device comprises a front support assembly and a rear support assembly, the front support assembly and the rear support assembly respectively comprise a left support and a right support, an automatic bolt mesh laying mechanism and an automatic bolt mesh connection device are arranged on the front ends of longitudinal beams of the front support assembly, the left and right bases and left and right top beams of the front support assembly and the rear support assembly are respectively connected through push-pull cylinders, a height difference exists between the tops of crossbeams and the bottoms of the longitudinal beams of one set of support assembly fixedly connected with the crossbeams, and liftable carrier rollers are arranged at positions where the tops of the crossbeams correspond to the bottoms of the longitudinal beams of the other set of support assembly. Supporting and bolt mesh laying can be carried out synchronously, the labor intensity of workers is decreased greatly, the efficiency of excavation is increased, a working face can be supported in time, and a powerful guarantee is provided for the safety of operating personnel.

Description

technical field [0001] The invention belongs to the technical field of temporary support brackets for fully mechanized excavation faces in underground coal mines, and in particular relates to a temporary support device for automatic laying and networking excavation. Background technique [0002] Temporary advance supports commonly used in most coal mine underground excavation working faces in China include: one is the temporary support of the hanging ring piercing type front probe beam; the other is the temporary support device mounted on the roadheader; the third is the use of multi-row monomer Hydraulic prop plus high-strength I-beam beam support method, etc. 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, but in the actual use process, the support force is still small, and the roadway roof is repeatedly supported, and the labor intensity of t...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems of the existing advance support in the existing coal mine excavation work, during the excavation process of the underground roadway, the roof cannot be effectively supported in time after the roadway is

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