Lubricating wear state monitoring device and method for main bearing of diesel engine

A wear state and monitoring device technology, which is used in the installation and arrangement of acceleration sensors, ultrasonic sensors, and diesel engine main bearing lubrication and wear state monitoring devices. problems, to achieve high engineering application value, avoid dry friction, easy installation and operation

Inactive Publication Date: 2020-07-31
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

The disadvantage of this invention patent is that although the position of the faulty bearing can be found in the multi-speed main bearing and the degree of wear can be judged, the thermoelectric potential signal can only be read after the

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  • Lubricating wear state monitoring device and method for main bearing of diesel engine
  • Lubricating wear state monitoring device and method for main bearing of diesel engine
  • Lubricating wear state monitoring device and method for main bearing of diesel engine

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[0041] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the drawings and implementation cases. It should be understood that the specific implementation cases described here are only used to explain the present invention, but not to limit the present invention.

[0042] Such as figure 1 As shown, including the main bearing seat 1, the upper bearing shell 2, the crankshaft 3, the main bearing cover 4, the lower bearing shell 5, the ultrasonic sensor probe b6, the acceleration sensor 7, the pulse reflection thickness gauge b8, the signal acquisition instrument 9, the computer 10, Ultrasonic sensor probe a11, pulse reflection thickness gauge a13.

[0043] The ultrasonic sensor probe a11 is connected to the pulse reflection thickness gauge a13 and the computer 10 through a wire in turn; the ultrasonic sensor probe b6 is connected to the pulse reflectio...

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Abstract

The invention discloses a lubricating wear state monitoring device for a main bearing of a diesel engine. The device comprises an upper bearing bush, a lower bearing bush, a main bearing seat and a main bearing cover. A counter bore is formed in the center line of the main bearing cover, a blind hole a and a blind hole b are formed in the two sides of the center line at an included angle of 45 degrees respectively, and an ultrasonic sensor probe a is arranged in the blind hole a and sequentially connected with a pulse reflection type thickness gauge a and a computer through wires. An ultrasonic sensor probe b is arranged in the blind hole b. The ultrasonic sensor probe b is sequentially connected with a pulse reflection type thickness gauge b and a computer through wires. An acceleration sensor is arranged in the counter bore and is sequentially connected with a signal acquisition instrument and a computer through leads. The device is simple in structure and easy to install and operate. The lubricating state of the main bearing can be monitored in real time, the abrasion degree of the main bearing is obtained, safe operation of a diesel engine is guaranteed, and maintenance time and labor cost are saved.

Description

technical field [0001] The present invention relates to a diesel engine main bearing lubricating wear state monitoring device and method, in particular to the installation arrangement of an ultrasonic sensor and an acceleration sensor, which are used to detect the motion track of the crankshaft shaft center and the vibration of the main bearing cover, and then obtain the minimum oil film thickness of the main bearing, the bearing bush The wear depth and vibration characteristics belong to the technical field of diesel engine safety operation monitoring. Background technique [0002] For the main bearings of marine diesel engines, the traditional bearing wear detection method is to stop the machine and disassemble the bearings, and determine the bearing wear status through observation and measurement. However, marine diesel engines have high operating frequency, long intervals for regular shutdown and maintenance, and complicated disassembly. It is obviously difficult to meet...

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Application Information

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IPC IPC(8): G01B17/00G01B17/02G01M13/045
CPCG01B17/00G01B17/025G01M13/045
Inventor 朱军超钱海俣
Owner JIANGSU UNIV OF SCI & TECH
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