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Shield pump non-contact bearing wear detection device and detection method thereof

A technology for detecting device and bearing wear, which is applied in the direction of measuring device, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of insufficient detection accuracy and poor reusability, and achieve high detection accuracy, extended service life, The effect of reducing the cost of use

Active Publication Date: 2021-08-03
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a non-contact bearing wear detection device and a detection method for shielded pumps, the device and method can overcome the shortcomings of poor reusability and insufficient detection accuracy of traditional bearing monitors

Method used

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  • Shield pump non-contact bearing wear detection device and detection method thereof
  • Shield pump non-contact bearing wear detection device and detection method thereof
  • Shield pump non-contact bearing wear detection device and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, this embodiment provides a non-contact bearing wear detection device for canned pumps, which includes: a mounting joint 1 , a detection probe 2 , a transmission pipe 3 and a processing device 4 .

[0049] The installation joint 1 is used for detachable and fixed connection with the tail end of the main shaft of the canned pump; the inside of the installation joint 1 contains a cylindrical detection chamber 10; one end of the installation joint 1 is provided with a connecting sleeve 11 for connecting the tail end of the canned pump shaft, and the other One end is provided with a circular opening 12, the opening 12 communicates with the detection chamber 10, and the diameter of the opening 12 is smaller than the inner diameter of the detection chamber 10; the mounting joint 1 is made of magnetically permeable material.

[0050] The detection probe 2 is located in the detection cavity 10 where the joint 1 is installed; the size of the detection p...

Embodiment 2

[0071] Compared with Embodiment 1, this embodiment: an adjustable support 5 is added in this embodiment, and the adjustable support 5 is fixedly connected on the processing device 4; the adjustable support 5 is used to adjust and fix the processing device 4, the transmission pipe 3 and Detect the position of the assembly composed of the probe 2, so as to adjust the initial position of the detection probe 2 in the detection cavity 10 of the installation joint 1. The bottom surface of the adjustable bracket 5 is provided with mounting feet for fixed connection with the installation base surface 51.

[0072] Using the adjustable bracket can make it easier to adjust the position of the detection probe 2 in the detection cavity where the joint 1 is installed, so that the detection device is in the best detection state and the most accurate detection result can be obtained.

Embodiment 3

[0074] The difference between this embodiment and embodiment 2 is: as Figure 4 As shown, the non-contact bearing wear detection device of the canned pump in this example also includes an alarm device 7, which receives the analysis result of the data processing module and sends an alarm signal when the analysis result shows that there is excessive wear of the bearing.

[0075] Wherein the alarm device 7 can be a buzzer, a strobe and other devices that can send out an alarm. When the processing device 4 judges that the bearing wear of the canned pump exceeds the threshold value, the alarm device 7 sends an alarm signal, and the relevant operation and maintenance management personnel Relevant fault conditions can be received at the first time, and canned pumps can be repaired and processed according to operation and maintenance requirements.

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PUM

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Abstract

The invention relates to the field of nondestructive detection equipment, in particular to a shield pump non-contact bearing wear detection device and a detection method thereof. The detection device comprises a mounting joint, a detection probe, a transmission pipe, a processing device and an adjustable bracket. The mounting joint is used for being detachably and fixedly connected with the tail end of a shield pump main shaft. A cylindrical detection cavity is formed in the mounting joint; the detection probe is positioned in the detection cavity of the mounting joint; a resonance induction circuit composed of a coil and a capacitor is arranged in the detection probe. The processing device comprises a signal generation module, a feedback signal sampling module and a data processing module; a signal cable electrically connected with the detection probe and the processing device is arranged in the transmission pipe; the adjustable bracket is fixedly connected to the processing device and used for adjusting and fixing the position of a combined body formed by the processing device, the transmission pipe and the detection probe. The device and method can overcome the defects that a traditional bearing monitor is poor in reusability and insufficient in detection precision, and nondestructive detection of the shield pump bearing is achieved.

Description

technical field [0001] The invention relates to the field of non-destructive testing equipment, in particular to a non-contact bearing wear testing device and a testing method for shielded pumps. Background technique [0002] A canned pump is a sealless pump that seals both the pump body and the drive motor in a pressure vessel filled with the pumped medium. This kind of pump body usually needs to run continuously for a long time during use, so the requirements for the weather resistance and service life of the canned pump itself are relatively high. During the use of the canned pump, it is necessary to monitor the operation process of the pump body, and find the fault of the pump body itself at the first time, so as to repair the pump body in time. [0003] Bearing damage is a common type of failure in canned pumps, which is due to the damage caused by friction between the main shaft and the bearing during the long-term operation of the equipment. After the bearing is dam...

Claims

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Application Information

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IPC IPC(8): G01M13/045
CPCG01M13/045Y02E30/30
Inventor 洪占勇闫立强周丽华徐崧徐正富
Owner HEFEI UNIV OF TECH