Bearing axial load real-time detection device and shield tunneling machine

Abstract

The invention relates to a bearing axial load real-time detection device and a shield tunneling machine. The bearing axial load real-time detection device comprises: an annular base body which is coaxially fixed on one of an inner ring and an outer ring of a bearing to be detected, wherein the annular base body is provided with a ring body corresponding part, and an annular groove is formed in the end face of the ring body corresponding part to form a piston cavity. an annular piston assembled in the piston cavity in a guiding and moving mode in the axial direction of the annular base body, wherein the piston cavity is filled with a liquid medium, the annular base body is further provided with a pressure detection port communicated with the piston cavity, and the pressure detection port is used for being connected with a pressure detection device so as to detect the pressure intensity generated by the liquid medium under the action of the annular piston; and a a rolling supporting structure, wherein the rolling supporting structure comprises a rolling body, and the inner ring or the outer ring transmits the axial load to the corresponding part of the ring body through the rolling body. According to the scheme, real-time detection of the axial load of the bearing can be realized.

Description

technical field [0001] The invention relates to a real-time detection device for bearing axial load and a shield machine. Background technique [0002] The slewing bearing is a large bearing with a special structure that can bear comprehensive loads such as large axial loads, radial loads, and overturning moments at the same time, and integrates multiple functions such as support, rotation, transmission, and fixation. In general, the slewing bearing itself has installation holes, lubricating oil and sealing devices, which can meet the different needs of various hosts working under various working conditions; the slewing bearing itself has the advantages of compact structure, convenient guidance and rotation, and easy installation. It is widely used in large-scale slewing devices such as lifting and transportation machinery, mining machines, construction machinery, port machinery, wind power generation, medical equipment, radar and missile launchers. [0003] For example, th...

AI Technical Summary

Problems solved by technology

[0004]In the existing technology, due to the inability to detect the propulsion force of the shield machine in real time, the problem of shield machine tool damage or even cutter head damage occurs from time to time

The axial load of the shield machine is relatively high (currently the highest can reach more than 8,000 tons), and the structure of the shield machine is compact, so it is impossible to use the pressure measurement method in the prior art to measure the propulsion force

Images