Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bearing retainer rotating speed measuring system

A bearing cage and measurement system technology, which is applied in the field of bearing cage speed measurement system, can solve the problems of not adapting to high temperature oil mist environment conditions, low measurement accuracy, high cost, etc., to achieve controllable residual magnetism, high test accuracy, The effect of low energy consumption

Pending Publication Date: 2020-08-25
FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems existing in the prior art, such as measuring the rotation speed of the cage, adding parts, low measurement accuracy, high cost, large volume and unsuitable for high-temperature oil mist environmental conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bearing retainer rotating speed measuring system
  • Bearing retainer rotating speed measuring system
  • Bearing retainer rotating speed measuring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1, see figure 1 As shown, a bearing cage rotation speed measurement system includes: a sensor module, including a magnetic film fixed on the end face of the cage and a magnetoresistive sensor for receiving magnetic signals; an acquisition module for collecting magnetic information received by the magnetoresistive sensor and transmitted to the signal processing module; the processing module is used to perform time-frequency analysis on the magnetic signal to calculate the amplitude and frequency of the magnetic data signal, obtain the frequency domain waveform diagram of the magnetic data signal, and obtain the cage through waveform analysis and calculation speed.

[0045] Specifically, the magnetoresistive sensor is a TMR tunnel magnetoresistive sensor, which uses the quantum tunneling effect to realize the reading of the "encoded" information of the magnetic film. The TMR tunnel magnetoresistive sensor 4 has the characteristics of small size and high precision...

Embodiment 2

[0049] Example 2, see figure 2 Shown is the schematic diagram of the cross section of the cage of the present invention, the magnetic film 2 is installed on the cage 1, the TMR tunnel magnetoresistive sensor probe 3 is vertically arranged with the magnetic film 2, and the magnetic film with a thickness of one layer of micron on the end face of the cage 1, the magnetic film Magnetically encoded information with N pole and S pole arrangement.

[0050] Specifically, the arrangement method of the magnetically encoded information is that N poles and S poles are arranged alternately or magnetic poles are arranged in the same direction.

[0051] It is worth noting that when the arrangement method of the magnetic encoding information is alternate arrangement of N poles and S poles, the end face of the cage is covered with magnetic film collectors to obtain regular waveforms. When the magnetic poles are arranged in the same direction, the distance between the magnetic poles is kept a...

Embodiment 3

[0056] Example 3, see image 3 In the rotational speed measurement system shown, two TMR tunnel magneto-resistance sensors 4 are arranged on one side of the bearing 6, and the TMR tunnel magneto-resistance sensors 4 are arranged perpendicular to the end face of the bearing cage, and are kept 1 mm to 5 mm away from the magnetic film 2 on the cage The left and right spacing, the shaft 7 protruding from the other side of the bearing 6 is connected to the high-speed motor 8 through the coupling 9, and a protective cover 10 for protecting the coupling is provided between the bearing 6 and the high-speed motor 8, and the eddy current sensor 5 is installed in the protective cover 10, the eddy current sensor 5 is arranged perpendicular to the axis 7, and keeps a distance from the axis 7 within about 1 mm. When the motor 8 drives the bearing 6 to rotate, the TMR tunnel magnetoresistive sensor 4 collects the magnetic signal on the cage to calculate the cage speed, the eddy current senso...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a bearing retainer rotating speed measuring system comprising a sensor module which comprises a magnetic film fixed on the end face of a retainer and a magnetoresistive sensorused for receiving a magnetic signal; an acquisition module which is used for acquiring the magnetic information received by the magnetoresistive sensor and transmitting the magnetic information to the signal processing module; a processing module which is used for carrying out time-frequency analysis on the magnetic signal so as to calculate the amplitude and the frequency of the magnetic data signal, obtain a frequency domain oscillogram of the magnetic data signal and calculate to obtain the rotating speed of the retainer through waveform analysis; on the premise that the structure of the retainer is not damaged, the rotating speed is accurately measured, operation is stable, wave loss is avoided, the measuring system has the advantages of being insensitive to oil mist, vibration, environmental airflow and the like, and the measuring system is further provided with a verification sensor for verifying the stall and wave loss phenomena.

Description

technical field [0001] The implementation of the present invention relates to the technical field of bearing operating state detection, in particular to a bearing cage rotational speed measurement system. Background technique [0002] As we all know, bearings are the core components of machinery, which are responsible for the transmission of force and torque, and are also the main factors for equipment safety, high efficiency, precision and stable operation. Therefore, it is of great significance to measure the speed of the aerospace main shaft cage, explore the influence of slipping on the stable operation of rolling bearings, and provide important data for the optimization of bearing design. [0003] The bearings used in the aerospace field generally have a high speed, the working environment is relatively harsh, and the performance requirements for the bearing are also relatively high. The cage is a very critical component of this type of bearing, and the dynamic performa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01P3/488G01P3/49G01P3/44
CPCG01P3/443G01P3/488G01P3/49
Inventor 聂泳忠汤银海高炳攀李博骞少阳
Owner FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com