Distribution method and distribution structure of high-pressure water jet in heading machine cutterhead

Abstract

The invention relates to a distribution method and a distribution structure of high-pressure water jet in a heading machine cutterhead belonging to the field of the machine design, and in particular relates to a distribution method and a distribution structure of high-pressure water jet in the heading machine cutterhead. The distribution method in the heading machine cutterhead is free from changing the structural form of the existing rock heading machine cutterhead body and the layout and installation way of a hobbing cutter and a material collection port in the cutterhead, and a plurality of high-pressure water nozzles are distributed on the blank position of the end surface of the existing cutterhead structure. The heading machine cutterhead structure consists of the plurality of high-pressure water nozzles, a hobbing cutter, a material collection port and a plurality of water pipes. The rock heading machine cutterhead structure combining the high-pressure water jet and the hobbing cutter utilizes the high-pressure water to force rock joints to expand, so that the rock is easy to crush, the abrasion of the hobbing cutter is reduced, the construction efficiency is improved, and the construction cost is reduced. The water flow formed after the high-pressure water compresses the rock covers an entire digging surface, so that the working surface of the hobbing cutter and the heading machine cutterhead can be cooled, and a dustproof cooling effect on the construction environment can be realized.

Description

technical field [0001] The invention belongs to the field of mechanical design, and in particular relates to a method and a structure for arranging high-pressure water jets in a boring machine cutter head. Background technique [0002] Rock boring machine is the main construction machine in tunnel construction. Due to its advantages of safety and reliability, low environmental impact, low labor intensity and high efficiency, it is widely used in urban rail, water conservancy, municipal engineering, mines, highways, railway tunnels and other fields. . Because rock boring machines are often constructed in complex and harsh working environments, the rock hardness is high, the excavation section is large, the hobs are severely worn, and maintenance and replacement are time-consuming and laborious, which affects the construction efficiency and cost of tunnel engineering. [0003] As an important part of the rock boring machine, the cutter head has the most direct impact on the t...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of low construction efficiency, serious hob wear and high maintenance cost in the rock-breaking process of existing rock boring machines, and adopts a cutterhead structure combining high-pressure water jets and hobs.

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