Cutting device of heading machine

Abstract

The invention discloses a cutting device of a heading machine. The cutting device comprises a cutting motor (1), a cutting base (2), a speed reducer (3), a cutting transmission shaft (4), a spring (5), an impact hammer (6) and a cutting head (7), wherein the cutting base (2) is in a hollow pipe-shaped structure; the cutting motor (1), the speed reducer (3), the cutting transmission shaft (4), the spring (5) and the impact hammer (6) are mounted in the cutting base (2) in sequence. According to the cutting device of the heading machine, the cutting device is provided with the impact hammer; an impact force on rocks is obtained for one time when cutting teeth rotate for one circle, so that the rocks, which can be touched by the cutting teeth, are chopped firstly and then crushed stones, which do not fall, are cut off; the whole process does not depend on the whole weight of the heading machine and the power of a walking motor, so that the technical problem of cutting a total rock section by middle-sized and small-sized heading machines is successfully solved.

Description

technical field [0001] The invention relates to the technical field of coal mining machinery, in particular to a cutting device of a roadheader. Background technique [0002] Existing roadheaders are as large as hundreds of tons and cost hundreds of millions of yuan, and as small as 10-20 tons, costing hundreds of thousands of yuan. Large-scale roadheaders can cut the whole rock section and have complete functions. Unearthed rocks can also complete the support task. This kind of roadheader not only has high work efficiency and low labor intensity, but also does not need drilling and blasting. It has good geological environment protection and high safety performance. At present, there are many manufacturers in my country that can produce this large-scale Roadheaders, together with outsourced products over the years, have been used in some important engineering constructions and excavation constructions in large mines. There are many small and medium-sized roadheaders put into ...

AI Technical Summary

Problems solved by technology

Analyzing its reason, the working principle of the existing roadheader is: the cutting of cutting is powered by the cutting motor; the cutting motor power is less than 100KW and it is difficult to cut off the whole rock; the feeding is guaranteed by the walking motor and the weight of the body, The weight is less than 35 tons, and the motor power is not enough to cut the whole rock section. Therefore, although the large roadheader has many advantages in excavating roadway tunnels, it is too expensive and cannot be used in general projects and mines. Therefore, most engineering mines are Perforating and blasting should be used to solve the problem of crossing rock formations

[0003] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: the small and medium-sized roadheaders cannot adapt to the work of cutting whole rock sections

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