A system and method for online monitoring the degree of decay of lubricating grease by utilizing infrared dot laser emitters
A technology of laser emitter and grease, applied in the direction of scattering characteristic measurement, instrument, measuring device, etc., can solve the problem of low effective information rate, achieve high information utilization rate, wide application range, and clear monitoring principle
Active Publication Date: 2018-12-04
XI AN JIAOTONG UNIV
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Patent No. CN101971007A "Measuring Device and Method for Analyzing Bearing Lubricant" proposes a measuring device for analyzing bearing lubricant, including a transmitter, a receiver, a window, etc., the window is in direct contact with the grease, and the detection The state of the lubricant can be obtained from the frequency spectrum of the electromagnetic radiation captured in the area, but the installation of this test device needs to drill holes in the bearing and change the bearing structure. In addition, when extracting the signal spectrum, it is necessary to use all the time domain information of the signal, effectively low information rate
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[0030] The present invention is described in detail below in conjunction with accompanying drawing.
[0031] see figure 1 , Infrared point laser transmitter online monitoring grease decay degree system, including transmitters, receivers, processors and display devices.
[0032] The emission device is composed of a plurality of infrared point-like laser emitters 01 of different bands, and different bands correspond to the monitoring of different functional groups, such as the band 1200-1600cm -1 Corresponding to the monitoring of methyl groups, the wave band is 1600-2000cm -1 Corresponding to carbonyl monitoring, band 3200-3600cm -1 Corresponding hydroxyl monitoring;
[0033] The receiving device includes a BH1750 illuminance sensor 05 and a reset button 10. The BH1750 illuminance sensor 05 detects the light intensity of the received reflected light, and the reset button 10 is used to reset the illuminance data;
[0034] The processor includes STC89C52 single-chip microcomp...
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A system and method for online monitoring the degree of decay of lubricating grease by utilizing infrared dot laser emitters are disclosed. A plurality of the infrared dot laser emitters emit infraredlight with different wavebands onto the lubricating grease; reflected light signals are received by luminous intensity sensors, and processed by a sing chip microcomputer to obtain infrared luminousintensity changes of wavebands corresponding to characteristic functional groups such as methyl, carbonyl and hydroxyl; a lubricating grease service lifetime parameter K model quantized by characteristic quantities is built by utilizing an experiment database; and the degree of decay of lubricating grease is represented by the parameter K in real time and quantificationally to make a real-time judgment on the service lifetime, thus achieving on-line monitoring of the service lifetime of the lubricating grease.
Description
technical field [0001] The invention relates to a system and method for monitoring the decay degree of lubricating grease, in particular to a system and method for on-line monitoring the decay degree of lubricating grease by using an infrared point laser transmitter. Background technique [0002] Lubricant is one of the basic elements of modern mechanical systems. Its main function is to reduce friction and wear between moving pairs, improve mechanical working efficiency, and prolong the service life of machinery. Among them, the use of grease is quite common, especially in some low-speed, heavy-duty large-scale equipment. Grease is less sensitive to temperature, has greater adaptability to changes in load properties and operating speed, and has good adhesion on metal surfaces and is not easy to lose, so it has good lubricating ability, but the lubrication fails It will lead to a sharp increase in the wear of the moving pair, a rapid shortening of the life, and even a major...
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Login to View More IPC IPC(8): G01N21/47
CPCG01N21/4738G01N2021/4773
Inventor 曾群锋许雅婷樊博裕董光能洪军孙虎儿
Owner XI AN JIAOTONG UNIV