Dynamic performance testing device for cylindrical roller bearing retainer
A technology of cylindrical roller bearing and test device, applied in the direction of mechanical bearing testing, etc., to achieve the effect of fast response speed, high resolution and wide measurement range
Inactive Publication Date: 2013-01-09
HENAN UNIV OF SCI & TECH
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Problems solved by technology
[0004] Aiming at the problem in the prior art that it is difficult to test the cylindrical roller bearing cage in motion, the present invention provides a dynamic performance test device for the cylindrical roller bearing cage
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[0030] The present invention will be further elaborated below in conjunction with specific embodiments.
[0031] As shown in the figure, a cylindrical roller bearing cage dynamic performance test device is characterized in that it includes a test body, an electric spindle, a frequency converter, a hydraulic loading system, a computer monitoring system and a data acquisition system, an electric spindle and a hydraulic loading system They are respectively connected with the test main body, the frequency converter is connected with the electric spindle, the electric spindle provides power for the test main body, the hydraulic loading system provides the test load for the test main body, the signal measured by the measuring device on the test main body after the hydraulic loading system is loaded, and the electric spindle and frequency conversion The test parameters of the device are respectively input to the data acquisition system, the signal output terminal of the data acquisiti...
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Abstract
The invention discloses a dynamic performance testing device for a cylindrical roller bearing retainer. The dynamic performance testing device for the cylindrical roller bearing retainer comprises a testing main body, an electric main shaft, a frequency converter, a hydraulic loading system, a computer monitoring system and a data acquisition system, wherein the electric main shaft and the hydraulic loading system are respectively connected with the testing main body; the frequency converter is connected with the electric main shaft; the electric main shaft provides the testing main body with the power; the hydraulic loading system provides the testing main body with a testing load; after the hydraulic loading system loads, a signal measured by a measuring device on the testing main body and testing parameters of both the electric main shaft and the frequency converter are respectively input to the data acquisition system; a signal output end of the data acquisition system is input to the computer monitoring system; and a control signal of the computer monitoring system is input to the frequency converter, so that the rotating speed of the electric main shaft is controlled through the frequency converter. The dynamic performance testing device for the cylindrical roller bearing retainer, disclosed by the invention, has the advantages of adoption of electric eddy current displacement sensor, good reliability, wide measuring range, high sensitivity, high resolution, fast response speed, strong anti-interference performance and no influence from mediums such as greasy dirt. As the testing main body of the dynamic performance testing device for the cylindrical roller bearing retainer adopts a closed box structure, impurities can be prevented from entering into the box efficiently.
Description
technical field [0001] The invention relates to a test device, in particular to a test device for the dynamic performance of a cylindrical roller bearing cage. Background technique [0002] Cylindrical roller bearings are widely used in mechanical systems such as transmissions, motors, instruments and meters, and household appliances. As a very critical part of this type of bearing, the dynamic performance and reliability of the cage will affect the working performance of the entire bearing. When the structure design of the cage is unreasonable, the manufacturing accuracy is not high, and the operating condition is not good, the dynamic performance indicators such as the dynamic trajectory of the center of mass of the cage, the slip rate, the inclination angle and the skew angle will be extremely unstable. In severe cases, the cage will break or even Bearing failure. Therefore, monitoring the dynamic performance of the cage is very important in analyzing the dynamic charac...
Claims
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Inventor 邓四二杨海生刘苏亚孙朝阳
Owner HENAN UNIV OF SCI & TECH