A rolling bearing temperature distribution online test alarm device and its application method

Abstract

The present invention provides a rolling bearing temperature distribution online test alarm device and an application method thereof. The device comprises: a test box body which is provided with a test window, wherein a rolling bearing is arranged in the test box body; an infrared thermometer being aligned at the test window to collect infrared radiation pictures of the rolling bearing, wherein the rolling bearing, the test window and the infrared thermometer are located at the same straight line; an image processor configured to read the infrared radiation pictures collected by the infrared thermometer and store the infrared radiation pictures to be thermal imagery data; an upper computer configured to receive the thermal imagery data of the image processor to perform process and determine whether alarm signals are emitted or not; and an alarm module configured to receive the alarm signals of the upper computer to emit alarm. The rolling bearing temperature distribution online test alarm device can visually, rapidly and comprehensively display the temperature distribution condition of the rolling bearing.

Description

technical field [0001] The invention relates to the field of bearing detection, in particular to an on-line test and alarm device and a test method for temperature distribution of rolling bearings. Background technique [0002] When the rolling bearing is tested, the bearing temperature reflects the quality of the bearing, the lubrication condition, the installation condition and the dynamic characteristics of the test rotor, etc. During the high-speed operation of the bearing, once the bearing is damaged, lacks oil, installation deflection, and the test speed is close to the critical speed If it is not detected in time, it will affect the working performance and life of the bearing. Therefore, the bearing temperature is the most important monitoring parameter in the bearing test, which is directly related to the success or failure of the bearing test. [0003] Rolling bearings include four parts: outer ring, inner ring, cage, and rolling elements. When the bearing works, th...

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Problems solved by technology

[0004] The temperature measurement of the inner ring needs to use a slip ring lead, which has the disadvantages of high price, difficult installation, and limited number of uses, so the cost of testing the temperature of the inner ring is high

In addition, there is a delay in contact temperature measurement, and temperature changes cannot be reflected in real time, which affects judgment

Due to the limitation of the measurement channel and the installation position of the sensor, only a few measuring points can be tested. It is unreliable to estimate the temperature distribution of the entire bearing through the temperature of some measuring points on the outer ring and inner ring of the bearing, which can be used as a bearing fault judgment The basis is not sufficient

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