Heading machine cutting head for hard rock working condition and heading machine

Abstract

The invention discloses a heading machine cutting head for a hard rock working condition. The heading machine cutting head comprises a cutting head body, material pouring plates, a plurality of cutting head tooth holders and cutting teeth, the cutting head body comprises a cylindrical section, a conical section and a spherical crown section which sequentially form an integrated structure, the cutting teeth and the cutting head tooth holders are spirally arranged along the cutting head body from the cylindrical section to the spherical crown section in a spiral line manner, the cutting head tooth holders are fixedly connected onto the cutting head body, each cutting tooth is correspondingly assembled into the cutting head tooth holder, and the material pouring plates are distributed along the spiral lines of the cutting head tooth holders and fixedly connected with the cutting head body and the cutting head tooth holders. The cutting head can effectively meet operation of the hard rockworking condition, consumption of the cutting teeth can be effectively reduced, cutting efficiency is improved, and use cost is reduced.

Description

technical field [0001] The invention relates to a cutting head of a roadheader, in particular to a cutting head of a roadheader used in hard rock working conditions. Background technique [0002] Roadheaders are widely used in underground space construction fields such as coal mine roadways, mountain tunnels, and subway tunnels. At present, most domestic cutting heads imitate foreign cutting heads, and there is no research on the customized design of cutting heads for different cutting media, resulting in poor adaptability of cutting heads, inability to break through complex geology, and generally low operating efficiency. Especially when encountering hard rock working conditions, the local force on the cutting head is relatively large, and problems such as pick breakage and pick seat opening welding tearing are prone to occur, resulting in the failure of the cutting head and a serious drop in operating efficiency. [0003] Therefore, the present invention provides a roadhe...

AI Technical Summary

Problems solved by technology

At present, most domestic cutting heads imitate foreign cutting heads, and there is no research on customized design of cutting heads for different cutting media, resulting in poor adaptability of cutting heads, inability to break through complex geology, and generally low operating efficiency

Especially when encountering hard rock conditions, the local force on the cutting head is relatively large, and problems such as pick fracture and pick seat opening welding tearing are prone to occur, resulting in the failure of the cutting head and a serious drop in operating efficiency

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