High pressure water jet assisted cutting mechanism for heading machine

Abstract

The present invention discloses a high pressure water jet assisted cutting mechanism for a heading machine, including sequentially connected a drive unit, a reducer, a cutting arm, a cutting head, a built-in inner spray, and a built-in high pressure water delivery system, wherein the drive unit comprises motors, a connection frame and an output shaft I, the reducer includes a reducer casing, a coupling sleeve, a sun shaft I, a first stage planet carrier, a sun shaft II, a second stage planet carrier and an output shaft II, the cutting arm includes a main spindle, a housing and a connection flange, the cutting head includes hydraulic cutting tooth assemblies, a nozzle and a cutting head welding assembly, the inner spray and the high pressure water delivery system include a spray water input duct, a high pressure water input duct, a spray water path, a high pressure water pipe, a spray water output duct, a high pressure water output duct, a spray chamber and a high pressure water chamber. According to the invention, based on keeping an inner spray system, high pressure water is introduced, the layout is reasonable, the structure is compact, and the purposes of improving efficiency, reducing work dust, and prolonging service life of cutting tools are realized.

Description

technical field [0001] The invention relates to a cutting mechanism, which is the main part matching with the roadheader in coal mines, mines and tunnel engineering equipment, and introduces high-pressure water jets as auxiliary cutting. Background technique [0002] With the development of mechanized tunneling technology in coal mine underground tunnels, the constantly updated mechanized tunneling tools still cannot meet the needs of production. The excavation efficiency of the small power roadheader used in the excavation of thin coal seams, semi-coal rocks, gangue and small fault coal rocks is low, but the method of increasing power to solve the above existing problems will inevitably cause Tool wear is serious and there are potential safety hazards. Based on this, it is urgent to develop a high-pressure water jet auxiliary cutting mechanism for roadheaders; Develop a roadheader cutting mechanism that not only retains the internal spray system but also introduces high-pr...

AI Technical Summary

Problems solved by technology

[0002] With the development of mechanized tunneling technology in coal mine underground roadways, the constantly updated mechanized tunneling tools still cannot meet the needs of production

The excavation efficiency of the small power roadheader used in the excavation of thin coal seams, semi-coal rocks, gangue and small fault coal rocks is low, but the method of increasing the power to solve the above existing problems will inevitably cause Tool wear is serious and there are potential safety hazards. Based on this, it is urgent to develop a high-pressure water jet auxiliary cutting mechanism for roadheaders; Develop a roadheader cutting mechanism that not only retains the internal spray system but also introduces high-pressure water jets

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