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Vibration sensor mounting device in bearing testing machine

A vibration sensor, bearing testing technology, used in mechanical bearing testing, measuring devices, instruments, etc.

Inactive Publication Date: 2017-01-04
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a vibration sensor installation device in a bearing testing machine for the defects existing in the installation method of the vibration sensor in the current bearing testing machine. circle on

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  • Vibration sensor mounting device in bearing testing machine
  • Vibration sensor mounting device in bearing testing machine
  • Vibration sensor mounting device in bearing testing machine

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Experimental program
Comparison scheme
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Embodiment Construction

[0014] Such as Figures 1 to 4 As shown, a vibration sensor installation device in a bearing testing machine includes a vibration sensor 1, a cover plate 2, a helical compression spring 3, and a probe 4. The top end of the probe 4 is fixedly connected to the vibration sensor 1 through threads, and the probe 4 Through the small hole 5 in the cover plate 2, the cover plate 2 is installed on the base, the helical compression spring 3 is sleeved on the probe 4, the lower surface of the cover plate 2 is pressed against the upper end of the helical compression spring 3, and the probe A shaft shoulder 6 is arranged in the middle of the needle 4, and the shaft shoulder 6 tightly presses the lower end of the helical compression spring 3, so that the helical compression spring 3 is always in a compressed state, and the front end of the probe 4 is always in close contact with the surface to be tested through the shaft shoulder 6 , the probe 4 transmits the vibration characteristics of th...

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Abstract

The invention discloses a vibration sensor mounting device in a bearing testing machine. The vibration sensor mounting device comprises a vibration sensor, a cover plate, a helical compression spring, and a probe. The top of the probe is fixedly connected to the vibration sensor thread through a thread and goes through a small hole in the cover plate. The cover plate is installed on the base. The helical compression spring sleeves the probe. The lower surface of the cover plate presses the upper end of the helical compression spring. The middle part of the probe is provided with a shaft shoulder which presses the lower end of the helical compression spring such that the helical compression spring is always in a pressed state. The front end of the shaft shoulder is always in contact with a detected surface through the shaft shoulder. The probe transmits the vibration characteristic of the detected object to the vibration sensor through a rigid probe body. The vibration sensor mounting device has the advantages of solid and reliable installation, easy improvement of measurement precision, and the accurate reflection of bearing internal vibration state and is especially suitable for an occasion that a detected surface is small, rough and the like and is difficult to install a vibration sensor directly.

Description

technical field [0001] The invention relates to a vibration sensor installation device in a bearing testing machine. Background technique [0002] When testing the tested bearing in the bearing testing machine, vibration is an important indicator of bearing quality. Generally, the sensor measures the vibration of the outer ring during the operation of the bearing to understand the working state of the bearing. There are many ways to install the vibration sensor on the outer ring of the bearing, but due to the small installation space of the sensor in the testing machine, the sensor is not easy to fix, etc., making it difficult for the testing machine to accurately measure the vibration of the bearing. Different installation methods have a great influence on the frequency response characteristics of the sensor. Common methods are as follows: [0003] The sensor is bonded directly to the outer ring of the bearing with an adhesive. This method is easy to install, but the co...

Claims

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Application Information

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IPC IPC(8): G01M13/04
CPCG01M13/045
Inventor 李松生周伟罗士锋
Owner SHANGHAI UNIV