Cutting tool for heading machine and manufacturing method thereof

Abstract

The invention provides a cutting tool for a heading machine and a manufacturing method of the cutting tool. The cutting tool comprises a tool body, a tool head arranged at one end of the tool body, and surfacing and wear-resisting columns annularly arranged on the side face of the tool body. The other end of the tool body is connected with the heading machine. The tool head is made of a hard alloy material which comprises tungsten carbide powder and is prepared by using cobalt powder as a bonding phase. According to the invention, the tool head is prepared by the hard alloy material which uses the tungsten carbide powder as a main material and is prepared by using cobalt powder as the bonding phase. Compared with the tool head in the prior art, the tool head provided by the invention is better in wear-resistance and impact resistance. The cutting tool effectively cuts rocks and meanwhile, the cutting tool is not over-worn. At the same time, the surfacing and wear-resisting columns are arranged to improve the wear-resistance of the side face of the tool body. The cutting tool for the heading machine better in cutting performance and wear-resistance is provided.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a cutting tool for a boring machine and a manufacturing method thereof. Background technique [0002] As far as building construction is concerned, there are currently more and more underground projects, and the level of mechanization and automatic control is constantly improving. In engineering construction, tunneling machines such as "pipe jacking machines" and "shield tunneling machines" are used for underground tunneling. Tunneling machines are used A machine for digging straight underground tunnels. The excavation work of the roadheader requires the use of various types of cutting tools. [0003] The cutting tools used in the prior art usually include a cutter body and a cutter head arranged at one end of the cutter body. Since the materials to be processed by the roadheader are mostly hard rocks, the existing cutter head materials are not suitable for wear resistance o...

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Problems solved by technology

[0003] The cutting tools used in the prior art usually include a cutter body and a cutter head arranged at one end of the cutter body. Since most of the materials to be processed by the roadheader are hard rocks, the existing cutter head materials are not suitable for wear resistance or impact resistance. are not strong enough to effectively deal with hard rocks, even if they can cut rocks, the wear on the cutter body and cutter head is also serious

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