Temperature field measuring apparatus and method of antifriction bearing test
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A technology of rolling bearing and measuring device, which can be used in temperature measurement of moving solids, mechanical bearing testing, etc., and can solve problems such as measurement problems.
Active Publication Date: 2018-06-15
HARBIN INST OF TECH
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The rotation of the shaft and bearing will stir up a large amount...
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Embodiment 1
[0029] Embodiment one: if figure 1 As shown, a temperature field measuring device for a rolling bearing test involved in this embodiment includes a measuring part, a transmission part and an optical path cleaning part,
[0030] The measurement section includes a thermal imager,
[0031] The transmission part includes servo motor, force sensor, loading rod, code disc, motor, belt drive, support bearing, axial loading disc, test bearing, end cover,
[0032] The optical path cleaning part includes germanium glass and purge module,
[0033] Open a hole on the end cover of the outer box to install the thermal imager, the head of the thermal imager extends into the hole, and the rest of the thermal imager is supported by the bracket on the end cover;
[0034] The main shaft of the servo motor is connected to the end cover through the transmission pulley, the motor is connected to the end cover through the belt drive, and the code disc is connected to the motor; there is a hole in ...
Embodiment 2
[0038] Embodiment two: if figure 1 As shown, a temperature field measuring device for a rolling bearing test involved in this embodiment, and a temperature field measuring device for a rolling bearing test of the present invention, the end of the loading rod is a spherical surface.
Embodiment 3
[0039] Embodiment three: as figure 1 As shown, the temperature field measuring device for rolling bearing test involved in this embodiment, in the temperature field measuring device for rolling bearing test in this embodiment, the rotation range of the end cover is -180°~+180°.
[0040] The thermal imager used for temperature measurement is installed on the end cover. When the temperature measurement object is the inner ring or rolling body of a high-speed rotating bearing, the thermal imager remains still, and the thermal imager can scan a period of time for each rotation of the bearing. surface temperature. When the measurement object is the bearing outer ring that remains stationary, the thermal imager can be driven by the end cover to rotate slowly. The tail of the thermal imager is connected to the host computer by cable to avoid the winding of the cable and the rotating mechanism, so the rotation range of the end cover where the thermal imager is installed is -180°~+180...
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Abstract
The invention provides a temperature field measuring apparatus and method of an antifriction bearing test, and belongs to the bearing temperature measuring field. The temperature field measuring method of an antifriction bearing test includes the steps: after a motor and a thermal imaging system are started so as to start preheating and become stable, a test bearing starts working and gradually improves the rotating speed and the axial load to approach to the practical condition; a servo motor is controlled to rotate at slow speed so as to drive the thermal imaging system to rotate around an axle, so as to obtain the temperature of a test bearing retainer or rolling body and the outer ring of the test bearing; a code disc is used to read the positional information of the test bearing, andthen the real time position of the thermal imaging system can be obtained through calculation, and then the temperature information measured by the thermal imaging system and the positional information of the thermal imaging system are corresponding to each other, so that the temperature field distribution situation of the surface of the test bearing can be obtained. The temperature field measuring method of an antifriction bearing test sets germanium glass on the accessories of the bearing temperature measurement region to reduce the influence of lubricating oil on the measurement precision,and designs a blowing and sweeping module to blow away the randomly splashed oil mist on the premise of not influencing the lubrication effect of the lubricating oil, thus improving precision of a non-contact test.
Description
technical field [0001] The invention relates to a temperature field measuring device and method for a rolling bearing test, belonging to the technical field of bearing temperature measurement. Background technique [0002] The temperature field distribution is an important factor reflecting the operation and performance of the bearing, and is related to the quality and performance of the bearing. Therefore, the measurement of the temperature field is very important in the design, manufacture and use of the bearing. [0003] The rotating ring of the bearing rotates at high speed, and the highest temperature point inside the bearing is located in the contact area between the rolling element and the ring, and it is difficult to use contact measurement to measure the temperature in this area. The measurement of the temperature distribution inside the bearing can provide basic test data for investigating the temperature difference between the highest temperature point inside the ...
Claims
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