Cutting head for heading machine and heading machine

Abstract

The invention relates to a cutting head for a heading machine and the heading machine. The cutting head for the heading machine comprises a head body (1), a plurality of cutting teeth (2) and a plurality of tooth seats (3). All the cutting teeth (2) are installed on the corresponding tooth seats (3) correspondingly, and all the tooth seats (3) are installed on the head body (1). At least two operation areas are arranged on the head body (1), all the cutting teeth (2) are uniformly arrayed in the axial direction in one operation area, and / or all the cutting teeth (2) are uniformly arrayed in the radial direction in the other one operation area, so that stress uniformity of the cutting head for the heading machine is guaranteed. In the heading process of the cutting head for the heading machine, it is guaranteed that stress of the cutting head for the heading machine can be uniform, and abrasion is also uniform; and cutting head protection is facilitated, the service life of the cutting head is prolonged, replacing frequency of the cutting head is reduced, operation efficiency is improved, the cutting head can be better applied to the hard rock operation work condition, and the application range is wider.

Description

technical field [0001] The invention relates to the field of tunnel construction machinery, in particular to a cutting head for a roadheader and a roadheader. Background technique [0002] Roadheaders are widely used in the field of tunnel construction. The construction efficiency and consumption of picks in tunnels mainly depend on the performance of the cutting head of the roadheader. At present, the domestic cutting heads have large wear and low cutting efficiency in the construction process. Disadvantages, especially the picks at the front end of the cutting head wear a lot, and the picks need to be replaced frequently, thereby reducing the working efficiency of the whole machine. [0003] There is a new cutting head with a replaceable top cutting edge in the prior art, such as figure 1 As shown, the new cutting head is mainly composed of a cutting head body, a pick, a tooth seat and a replaceable top cutting edge. The picks and tooth holders are located in the cutting...

AI Technical Summary

Problems solved by technology

[0006] The cutting teeth of this cutting head adopt the helical method of equal elevation angle, which is suitable for cutting working conditions such as coal rock and semi-coal rock. However, under the hard rock working conditions, the front end of the cutting head still has serious wear of the cutting teeth. problems, need to replace picks frequently, thus reducing work efficiency

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