Pushing disc for machining steel bars for supporting electric power undermining tunnel

Abstract

The invention discloses a pushing disc for machining steel bars for supporting an electric power undermining tunnel. The pushing disc comprises a horizontally-arranged worktable. A plurality of forming parts distributed circumferentially are arranged on the upper surface of the worktable at intervals, limiting parts for limiting the steel bars are arranged on the positions, close to the forming parts at the head end and the tail end, of the worktable correspondingly, and gaps allowing the steel bars to be placed are formed between the limiting parts and the forming parts. Driving rods extending towards the outer side of the worktable are rotationally arranged at the circle centers of the multiple forming parts, clamping assemblies for limiting the cylindrical faces of the steel bars in a clamping mode are arranged on the driving rods, and the clamping assemblies are located on the outer sides of the forming parts. The pushing disc for machining the steel bars for supporting the electric power undermining tunnel has the advantages that the pushing disc can be conveniently operated by workers, manpower is saved, the bending work efficiency is improved, and meanwhile welding mountingin the later period is facilitated.

Description

technical field [0001] The invention relates to the field of bending steel bars, in particular to a push plate for processing steel bars for supporting steel bars in underground excavation tunnels. Background technique [0002] In the process of electric tunnel excavation, it is usually necessary to support the tunnel to prevent it from collapsing. Several supporting frames are mainly used to support the tunnel. The supporting frames are arranged equidistantly along the length of the tunnel. The frame is welded and assembled by multiple bent steel bars. Since the standard cross-section of the tunnel is arched, that is, an arched door shape with vertical sides on both sides and an upward convex in the middle, the steel bars supporting it also need to be bent into This shape is convenient for fitting with the inner wall of the tunnel. [0003] Such as figure 1 As shown, the existing bending device includes a support 1 fixed on the ground, a workbench 2 is horizontally arrang...

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Problems solved by technology

[0004] The steel bars supporting the tunnel are relatively long overall, so it takes a lot of effort to bend them. At the same time, when bending them, the bending arc may be caused by the different forces at one or several places. The shape is irregular, and it is not convenient to weld and install the steel bars in the later stage. When the outer diameter of the steel bars is thin, one worker can do the operation, and when the outer diameter of the steel bars is thicker, two or more workers are required. Simultaneous operation not only wastes manpower, but also reduces work efficiency

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