Hard rock push bench

Abstract

The invention discloses a hard rock push bench. The hard rock push bench comprises a cutter head, a crushing compartment and a housing, wherein the front end of the crushing compartment is connected with the back side of the cutter head, and the tail end of the crushing compartment is connected with the front end of the housing. The hard rock push bench is used for performing excavation work in a pebble bed, or a gravel bed, or continuous hard rock. No single bearing is arranged on a hob of the hard rock push bench, but a bearing inner ring is integrated onto a cutter shaft, a bearing outer ring is integrated onto a cutter body, and therefore structure of the hob is simplified, and production cost and manufacturing difficulty are reduced. .By regulating degrees of tightness between a hob seal ring and an annular gland through a gland regulation bolt, starting torque of the hob can be quickly regulated, and then the hob can adapt to different geological environments.

Description

technical field [0001] The invention relates to the field of building construction equipment, in particular to a hard rock pipe jacking machine. Background technique [0002] With the support of my country's rapid economic growth, pipe jacking technology is widely used in the construction of urban underground pipes, rainwater pipes, sewage pipes, power pipes, and common pipe trenches, and pipe jacking machines are increasingly integrated and miniaturized. However, the existing pipe jacking technology faces many problems: first, the existing hob requires high processing precision, many separate parts, and difficult to manufacture and assemble; The stones are easy to get stuck and block the mud discharge pipe, which affects the construction progress; third, the hinged sealing device is difficult to process, the deviation correction angle is small, and the sealing cost is high; fourth, the internal space utilization rate is low, the integration degree is low, and the volume is ...

AI Technical Summary

Problems solved by technology

However, the existing pipe jacking technology faces many problems: first, the existing hob requires high processing precision, many separate parts, and difficult to manufacture and assemble; The stones are easy to get stuck and block the mud discharge pipe, which affects the construction progress; the third is that the hinged sealing device is difficult to process, the deviation correction angle is small, and the sealing cost is high; the fourth is that the internal space utilization rate is low, the degree of integration is low, and the volume is large

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