Mounting structure of disc hob

Abstract

The invention discloses a mounting structure of a disc hob, which comprises a hob shaft support frame, hob shaft bases and a fixed cover plate. Two shaft ends of a hob center shaft are both processed by flat milling to form a flat shaft head with an inclined surface. The hob shaft support frame is a rectangular frame, the inner sides of the two opposite side upright plates of the hob shaft support frame are respectively fixedly provided with one hob shaft base in a connecting manner, an open groove is arranged on the inner side surface of each hob shaft base from bottom to top, a pressure spring, a limit slider and a trapezoid shaft base groove are arranged in the open groove from top to bottom, the bottom of the limit slider is an arc surface with a concave bottom, and a shaft base hole is formed between the arc surface with a concave top and the trapezoid shaft base groove. The side below the open groove is provided with an inclined surface, and an inclined channel is formed from the inclined surface to the opening. The flat shaft head of the disc hob center shaft is matched with the shaft base hole. According to the invention, the disc hob can be conveniently and quickly mounted, and space is widened for the further application of an automation technology. The invention has good application prospects.

Description

technical field [0001] The invention relates to a shield machine part for tunnel construction, in particular to an installation structure of a shield machine hob on a knife seat. Background technique [0002] At present, more and more shield machines are used for underground excavation in underground engineering, while full-face hard rock excavators are more commonly used for hard rock excavation. As an efficient excavating tool, the hob is widely used in the above two excavating equipment, especially for hard rock excavation, it is already an indispensable excavating tool. During the excavation process of the shield machine and the hard rock excavator, as the cutter head rotates continuously, the hob installed on the cutter head will continue to roll the rock. This long-term interaction between them will cause continuous wear of the hob, so that when the wear of the hob reaches a certain level, the efficiency of cutting rocks will be reduced, the original excavation effect...

AI Technical Summary

Problems solved by technology

The embedded method generally uses bolts to fix the hob shaft, which makes the installation and disassembly process of the hob complicated, and must be replaced one by one by workers. The installation efficiency is low, which is not conducive to the implementation of mechanical automation in the future

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