Check patentability & draft patents in minutes with Patsnap Eureka AI!

Shield machine main bearing detection device and repair method

A detection device and main bearing technology, which is applied in the field of shield machines, can solve problems such as inability to correctly evaluate the sealing performance of main bearings, detection data errors, and shield machine shutdowns.

Active Publication Date: 2022-06-24
CHINA RAILWAY TUNNEL GROUP CO LTD +2
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent does not take into account that if the sensor for detecting the main bearing is damaged, the detection data obtained may be wrong, and the results obtained by the evaluation cannot correctly evaluate the sealing performance of the main bearing, which may lead to frequent alarms As a result, the shield machine was forced to stop many times

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shield machine main bearing detection device and repair method
  • Shield machine main bearing detection device and repair method
  • Shield machine main bearing detection device and repair method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment discloses a detection method for the main bearing of a shield machine. In the case of no conflict or contradiction, the whole and / or part of the content of the preferred implementations of other embodiments can be used as a supplement to this embodiment.

[0053] Preferably, a second sensor is provided on the lip seal structure 50 of the main bearing 10 to obtain information such as the sealing performance of the main bearing, whether grease is mixed with muddy water, and so on, so as to clarify the cause of the failure. However, when using optical fibers or optical devices for testing, the requirements for the testing environment are high, so the testing is generally performed when the shield machine is shut down. In addition, since the radius of the lip-shaped sealing structure is small, and the second sensor can select a material with a refractive index between 1.46 and 2.2 to make a ring-shaped optical waveguide, the second sensor can detect small cha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a detection device and a repair method for the main bearing of a shield machine. The method at least includes: setting a first sensor for detecting vibration signals on the main bearing of the shield machine, and installing a lip on the main bearing of the shield machine. The sealing structure is provided with a second sensor for detecting the sealing performance of the main bearing and the refractive index of the liquid; multiple vibration signals transmitted by a plurality of the first sensors in the same time range are superimposed on each other to form a total vibration signal; based on being able to form The main bearing sealing performance parameters transmitted by the second sensor arranged on the lip seal structure of the main bearing in the form of a ring resonant cavity and the liquid composition information obtained through the change of the refractive index verify the total vibration signal.

Description

technical field [0001] The invention relates to the technical field of the shield machine, in particular to a detection and repair method for the main bearing of the shield machine. Background technique [0002] As the main bearing part of the shield machine, the main bearing bears the main load during the operation of the shield machine, and is the main transmission part of the cutterhead drive. Since the main bearing of the shield machine is installed inside the main drive of the shield machine and has a closed structure, it is difficult to install various sensors to monitor the operating status of the main bearing. Usually during the excavation process, the operator preliminarily judges whether the main bearing is faulty based on personal experience through various operating parameters of the shield machine, and verifies through physical and chemical index analysis, spectral analysis, and ferrographic analysis of the lubricating oil of the main bearing to confirm After a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/045G01M13/04
CPCG01M13/045G01M13/04
Inventor 李凤远王雅文韩伟锋陈桥杨延栋张合沛杨振兴褚长海任颖莹高会中陈瑞祥王利明翟乾智赵海雷周振建孙飞祥
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com