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Conveyor Roller Bearing Hybrid Monitoring System

A hybrid monitoring and conveyor technology, applied in the direction of mechanical bearing testing, etc., can solve problems such as complicated detection methods, and achieve the effects of reducing measurement difficulty, ensuring safety, and improving safety

Active Publication Date: 2017-12-22
湖北众利工程机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detection method is a commonly used bearing detection method at present. It is characterized by replacing the traditional manual knocking detection method and improving the accuracy of detection. However, this method is still based on the static test method under ideal conditions for bearing detection. Yes, and usually the bearing to be tested needs to be disassembled, or even if the bearing is not disassembled, the entire wheel-to-axle needs to be placed on the testing equipment, so the testing method is relatively complicated
[0006] Studies have shown that, as a mechanical device, the conveying device has made great progress in safety testing, and some progress has been made in the online monitoring of roller bearings, but the roller bearings in the conveyor are completed through sound or vibration signals. The combination of external signal acquisition and detection and online monitoring of roller bearings to form a hybrid monitoring system has not been involved in this field.

Method used

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  • Conveyor Roller Bearing Hybrid Monitoring System
  • Conveyor Roller Bearing Hybrid Monitoring System
  • Conveyor Roller Bearing Hybrid Monitoring System

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0031]A conveyor roller bearing hybrid monitoring system, comprising a motor 1, a coupling 2, a left end support bearing 3, an axial displacement sensor 4, an axial displacement bearing plate 5, a radial displacement sensor 6, a sound recorder 9, a signal conditioning Device 10, computer, right end support bearing 7, drive chain, drum shaft 8, motor 1 drives drum shaft 8 to rotate through coupling 2, drum shaft 8 is supported between left end support bearing 3 and right end support bearing 7, and the drum is installed in On the drum shaft 8, and matched with the left end support bearing 3 and the right end support bearing 7, the drum shaft 8 is also provided with an axial displacement bearing plate 5, which is used for the axial force Fa received by the drum shaft 8 It is transmitted to the axial displacement sensor 4, and a radial displacement sensor 6 is also arranged inside the drum to detect the radial force received by the drum shaft 8; the installation position of the rad...

specific Embodiment 2

[0042] The hardware arrangement is basically the same as that of the first embodiment. In this embodiment, the control unit is replaced by a computer with complex computing capability and high hardware and software configuration. On-line monitoring is performed on the basis of the signal of the bearing, and the sound signal of the bearing is not collected at this time. For example, heavy ore, pulverized coal, etc., due to the poor working conditions of the conveyor, the online monitoring system alone cannot fully guarantee the safety of production. At this time, the collected sound signals are compared and processed, and then added to the conveyor. The running state is judged, and the specific process is as follows:

[0043] The sound recorder is the 1 / 4 pre-polarized pressure field microphone 4944-A of Denmark B&K company, the sensitivity is 0.9mV / Pa, the frequency range is 16-70000Hz, the dynamic range is 48dB-169dB, and the temperature range is -20 to +100 °C. The signal ...

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Abstract

The invention relates to a hybrid monitoring system for conveyor roller bearings, which includes a motor, a shaft coupling, a left end support bearing, an axial displacement sensor, an axial displacement bearing plate, a radial displacement sensor, a sound recorder, a signal conditioner, a computer, The right end support bearing, drive chain, roller shaft, the motor drives the roller shaft to rotate through the coupling, the roller shaft is supported between the left end support bearing and the right end support bearing, the roller is installed on the roller shaft, and is connected with the left end support bearing and the right end support bearing Matching, wherein: the roller shaft is also provided with an axial displacement bearing plate, which is used to transmit the axial force Fa received by the roller shaft to the axial displacement sensor, and the inside of the roller is also provided with a radial displacement The sensor is used to detect the radial force on the roller shaft. The invention reduces the measurement difficulty and can conveniently and safely obtain the running state of the conveyor, thus ensuring the safety of the machine and operators.

Description

technical field [0001] The present invention relates to a device for monitoring conveyor equipment, and more particularly, the present invention relates to hybrid on-line monitoring of conveyor roller bearings. Background technique [0002] In the prior art, both the belt conveyor and the roller conveyor usually use rollers for power transmission, and the rollers are mounted on rolling bearings. At present, various industrial and mining enterprises are relatively mature in the research and development of on-line monitoring of conveying devices. For example, photoelectric systems are used to optically inspect the bearing surface and / or rolling surface of the conveyor belt, especially the bearing surface, in which damages occurring during operation are identified. And when a critical state of the conveyor belt is reached, an audible and / or optical alarm signal is emitted and / or in particular an automatic disconnection of the conveyor system is initiated. [0003] For another ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
Inventor 吴联凯
Owner 湖北众利工程机械有限公司