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Monitoring device for main bearing of shield tunneling machine

A technology for monitoring devices and main bearings, applied in bearing assembly, shafts and bearings, bearing components, etc., can solve problems such as overmaintenance, undermaintenance, and lack of theoretical basis, so as to reduce the risk of downtime, improve construction efficiency, and ensure construction safe effect

Pending Publication Date: 2019-06-21
CHINA RAILWAY HI TECH IND CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] That is, to evaluate the service status of the main bearing based on past experience, lack of theoretical basis, and easily lead to over-maintenance or under-maintenance

Method used

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  • Monitoring device for main bearing of shield tunneling machine
  • Monitoring device for main bearing of shield tunneling machine
  • Monitoring device for main bearing of shield tunneling machine

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] A main bearing monitoring device of a shield machine according to the present invention comprises a through hole opened on the main drive flange 3 of the shield machine, and a detection head is installed in the through hole close to the inner ring 1 of the main bearing for collecting the main bearing Sensor 2 for axial displacement signal.

[0020] Further, a nylon sleeve 5 is sleeved on the sensor 2, and an installation frame 4 inserted into the through hole of the main drive large flange 3 is sleeved on the end of the sensor 2 away from the main bearing inner ring 1, and the installation bracket 4 and the nylon sleeve 5, and the nylon sleeve 5 is fixed on the mounting frame 4 by bolts 8.

[0021] Still further, the nylon sleeve 5 is fitted on the sensor 2 through thread fit, and a nut 9 is installed on the end of the sensor 2 away f...

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Abstract

The invention relates to the technical field of shield tunneling construction equipment installation, in particular to a monitoring device for a main bearing of a shield tunneling machine. The monitoring device for the main bearing of the shield tunneling machine comprises a through hole formed in a main drive large flange plate of the shield tunneling machine, wherein a sensor provided with a detection head close to an inner ring of the main bearing and used for acquiring an axial displacement signal of the main bearing is arranged in the through hole. Through the sensor, the displacement amount of the axial displacement of the main bearing is monitored, so that whether the axial clearance exceeds the standard or not is monitored so as to judge whether the main bearing is severely worn, the fault of the main bearing is predicated in advance, the risk of shut down due to the fault of the main bearing is reduced, the construction safety is ensured, and the construction efficiency is improve. Meanwhile, a nylon sleeve for protecting the sensor is arranged on the sensor in a sleeving way.

Description

technical field [0001] The invention relates to the technical field of installation of shield tunneling equipment, in particular to a monitoring device for a main bearing of a shield tunneling machine. Background technique [0002] As a special construction machine for tunnel excavation integrating optical, mechanical, electrical, hydraulic, sensing, and information technologies, the shield machine has been widely used in the construction of urban subways, drinking water, sewage, and comprehensive tunnels. Among them, the main bearing is the "heart" of the shield machine, and its working state will directly affect the working state and efficiency of the shield machine. If the main bearing fails during the excavation process, it will cause equipment shutdown, engineering shutdown and other consequences, and it is difficult to repair the main bearing in the tunnel, and it is even necessary to dig a shaft to remove the shield from the tunnel for repair. [0003] Since the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C41/00
Inventor 李川杨鹏郑军高旭东李杰李恒王钰辰梅元元
Owner CHINA RAILWAY HI TECH IND CORP LTD
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