Comprehensive performance testing device for rolling ball bearing

Abstract

The invention discloses a comprehensive performance testing device for a rolling ball bearing. The comprehensive performance testing device comprises a motor support, a motor, a shaft, a torque sensor, two temperature measurement sensors, an acceleration sensor, an axial load loading device and a test bearing pair. The motor unceasingly rotates at a certain rotating speed and drives the shaft to move in the same way. A test bearing is arranged in a bearing pedestal, and the shaft drives the inner ring to rotate. The torque sensor collects a torque signal generated by the test bearing due to the friction effect in the rotating process. The acceleration sensor is used for collecting a vibration signal generated by the bearing in the rotating process in the vertical direction. The temperature measurement sensors are used for collecting temperature effect signals generated by the test bearing in the running process due to heat generated by friction. Friction torque, vibration and temperature collection are integrated, on-line monitoring and collecting of the running performance of three types of bearings are achieved, and the comprehensive performance testing device has the advantages of being simple in structural design, small in size, convenient to machine and assemble, high in integration degree, and the like.

Description

technical field [0001] The invention relates to a test device, in particular to a rolling bearing test device, which belongs to the technical field of rolling bearing testing. Background technique [0002] Effectively obtaining the dynamic technical parameters of the bearing during operation is an important research content in the field of bearing testing and tribology research. Monitoring the dynamic operation process of the bearing through the design of bench tests is the main research method for evaluating the bearing and its lubrication state. method. [0003] Most of the existing rolling ball bearing test devices can only provide a single parameter test of friction torque signal test or vibration signal test, and cannot fully reflect the dynamic change process of bearing performance during operation. [0004] The existing testing device for rolling ball bearings adopts a complicated transmission system, and the shaft system usually adopts an array of supporting bearing...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing rolling ball bearing test devices can only provide a single parameter test of friction torque signal test or vibration signal test, and cannot fully reflect the dynamic change process of bearing performance during operation

[0004] The existing rolling ball bearing testing device adopts a complex transmission system, and an array of supporting bearings is usually used in the shafting system, which increases the instability of the system

At the same time, for vibration signal acquisition, the vibration signal of the supporting bearing is also transmitted to the acceleration sensor through the rotation of the shaft, and is mixed with the test bearing in the same spectrogram, causing great interference to the subsequent signal processing

[0005] Existing testing devices for rolling ball bearings often use more complex loading mechanisms to apply axial loading force to the test bearings, such as hydraulic loading mechanisms, lever loading, etc., making the structure of the entire testing device complex and difficult to process and assemble

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