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A method for measuring bearing rolling friction torque

A rolling friction force and measurement method technology, applied in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve problems such as difficult measurement or accurate bearing friction torque, achieve convenient and fast loading and unloading, and reduce the use of cost, the effect of improving measurement quality

Active Publication Date: 2020-07-10
中国空气动力研究与发展中心超高速空气动力研究所
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AI Technical Summary

Problems solved by technology

Because the friction torque of the bearing is relatively small, it is difficult to measure or measure the friction torque of the bearing by conventional measurement methods

Method used

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  • A method for measuring bearing rolling friction torque
  • A method for measuring bearing rolling friction torque
  • A method for measuring bearing rolling friction torque

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. According to the measurement range of the sensor 2 and the radial loading range of the bearing 7, check and set the appropriate data acquisition and processing system measurement channel gear, so that the measurement signal with the output value of the sensor 2 within the entire measurement range has a better signal-to-noise ratio;

[0051] 2. Press figure 1 As shown, the sensor 2 is installed vertically, and the sensor mounting seat 1 and the sensor 2 are adjusted to ensure that the force-feeling axis of the sensor 2 is coaxial with the loading line 3. It adopts high-strength, low-elasticity, and small contact-sliding with the bearing jacket 8 The soft wire is used as the loading line 3, one end of the loading line 3 is fixed on the sensor 2, and the other end is suspended on the weight 6 that has been accurately measured and weighed; the weight 6 is quickly lifted up by manual or mechanical devices within 30ms , realize fast unloading, check the triggering situatio...

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Abstract

The present invention discloses a bearing rolling friction moment measurement method. According to the measurement method, a loading wire of a sensor is vertically installed without through a pulley and is horizontally installed through a pulley, in the two installation modes, the difference of sensor output values is employed to assess the dynamic rolling friction of the outer surface of a bearing, and the dynamic rolling friction is multiplied by a bearing radius to obtain the bearing dynamic rolling friction moment. The method can achieve the dynamic rolling friction moment measurement withno need for parts such as a motor and the like so as to reduce the complexity of the system; the method has a sensor self-calibration performance with no need for usual metering of the sensor so as to save the purchasing cost and the usage cost of the bearing rolling friction moment measurement system.

Description

technical field [0001] The invention belongs to the field of bearing characteristic measurement, and in particular relates to a method for measuring bearing rolling friction torque. Background technique [0002] Bearings are load-bearing and fixed parts of many rotating machinery devices. The quality of bearings directly affects the efficiency, failure rate and even life of rotating machinery. For the evaluation of the quality of bearings, in addition to routine inspections such as appearance, clearance of various parts of the bearing, and lubrication conditions, a relatively important feature is how to evaluate the rolling friction torque of the bearing. Usually, it is necessary to measure the rolling friction torque of the bearing. Evaluate the dynamic performance of bearings. Because the friction torque of the bearing is relatively small, it is difficult to measure or measure the friction torque of the bearing by conventional measurement methods. Moreover, the measureme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
CPCG01L5/0019
Inventor 吕治国赵荣娟
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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