Tumour-pulling knife for removing steel rail welding beading

Abstract

The invention relates to a cutting tool, in particular to a knob removing tool used for removing rail welding beading. The invention provides the technical scheme that the knob removing tool for removing welding beading comprises a plurality of cutter bodies and locking mechanisms, which are connected end to end in sequence; wherein, the cutter bodies are mutually hinged end to end in sequence, or at least two adjacent cutter bodies therein are connected into an integrated body, and the other cutter bodies are mutually hinged; wherein, the locking mechanisms which are mutually matched and connected are arranged on the cutter bodies positioned at the front end and the rear end; cutting edges are arranged on the cutter bodies, after the cutter bodies positioned at the front end and at the rear end are mutually connected and locked, a section shape of the rail consists of the cutting edges of the cutter bodies, and the cutter bodies after locking comprise a left cutter body, a top cutter body, a right cutter body and a bottom cutter body. The knob removing tool is characterized in that a mounting hole is formed in the top cutter body, and a positioning component is mounted in the mounting hole, which is partially higher than the cutting edge of the top cutter body. The knob removing tool has the advantages that the main body of the rail can be not damaged in the knob removing process, the polishing quantity for workers is reduced, and the service life can be also prolonged.

Description

technical field [0001] The invention relates to a cutting tool, in particular to a tumor-removing knife for removing welding tumors of rails. Background technique [0002] Seamless track is the most important progress and development of railway track structure in the 21st century. In order to adapt to the further speed-up of my country's railways and the requirements of high-speed railways, the current domestic seamless lines are developing rapidly. Rail welding must be carried out during the construction of seamless lines, and pulse flash welding technology is usually used in China. And the welding spar generated in the rail welding process must be removed. If manual grinding is used directly, the grinding workload is too large, the labor intensity is high, and the efficiency is low. Therefore, most of the welding tumors are firstly removed by a pusher knife, and then manual grinding is used. [0003] Existing tumor pushing knife is made up of parts such as top knife, le...

AI Technical Summary

Problems solved by technology

This results in an uneven gap between the edge of the pusher knife and the rail section

As a result, during the cutting process, the top surface of the rail is easily scratched by the cutting edge; the cutting of the bottom surface of the rail is not in place, the margin is large, and the amount of manual grinding after pushing the tumor is greatly increased; at the same time, various parts of the welding tumor will be cut due to different clearances If the amount is different, the tumor pushing knife will be tilted due to uneven force, resulting in damage to the tumor pushing knife

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