Hydraulic walking multi-level temporary supporting equipment for advancement of tunnel

Abstract

The invention belongs to the technical field of equipment for advancement production of coal mines, and particularly relates to hydraulic walking multi-level temporary supporting equipment for advancement of a tunnel, which aims to realize safe and fast advancement of coal mine advancing tunnels. Single supports, which are located on the same side, of a walking support group and a temporary support group are serially connected onto a guide track and can slide relative to the guide track, and single supports located on the left side and the right side of the walking support group and single supports located on the left side and the right side of the temporary support group are connected with a pushing mechanism capable of pushing the single supports to move longitudinally. The hydraulic walking multi-level temporary supporting equipment has the advantages that safety of supporting operation is greatly improved; timely supporting of the supporting equipment can be guaranteed when the grade of the tunnel is changed; and the supporting equipment is an integral structure, runs independently and saves time, labor and space.

Description

technical field [0001] The invention belongs to the technical field of coal mine excavation production equipment, in particular to a hydraulic stepping multi-stage temporary support equipment for an excavation roadway. Background technique [0002] According to national statistics, in 2008, there were 1,954 accidents of various types in coal mines, with 3,215 deaths, of which 1,032 were roof accidents, with 1,222 deaths, accounting for 52.8% and 38.0% of the number of accidents and deaths, respectively. , which accounts for the largest proportion of accidents. For this reason, Article 41 of the "Coal Mine Safety Regulations" specifically stipulates: "It is strictly forbidden to work on the top of the excavation face"; workable". [0003] Temporary support for roadway excavation is an effective means to prevent roof deformation and caving, and is an important link related to the safe excavation of coal mines. At present, there are many kinds of temporary support methods, b...

AI Technical Summary

Problems solved by technology

[0004] (1) The scientific design of the running track has not been solved well, the deviation problem often occurs when walking and moving, and the workload of manual assistance is large

[0005] (2) Bloated equipment, complex mechanism, frequent failures, large space occupation, and large interference

[0006] (3) The walking mechanism is often affected by the flatness of the roadway floor, making it difficult to walk

[0007] (4) At present, only the first-level support can be realized, and the process changes frequently

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