A device for measuring the viscosity-temperature coefficient of air-containing lubricating oil and its real-time calculation method
A measuring device and lubricating oil technology, applied in the field of fluid lubrication, can solve the problems of difficult to ensure measurement, large error, inability to meet real-time, comprehensive and precise measurement, etc., and achieve the effects of small error, compact structure and strong practicability
Inactive Publication Date: 2021-08-13
ZHENGZHOU UNIV
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Problems solved by technology
The viscosity-temperature coefficient of air-containing lubricating oil is calculated based on the viscosity of the lubricating oil at different temperatures and the corresponding temperature value. The air content and viscosity-temperature coefficient are measured separately, and it is difficult to guarantee the same working conditions. Therefore, the error Larger, unable to meet the needs of real-time, comprehensive and precise measurement
Method used
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Embodiment 1
[0040] like Figure 1 ~ 5 As shown, a gas-containing oil bonding temperature coefficient measuring device includes a gas supply unit, a gas consolidation unit, a measuring unit, and a constant temperature unit, and each unit will be described in detail below.
[0041] (1) Vegetary unit: The air supply unit includes a constant voltage gas source 1 and a gas transfer main pipe 31, and the air supply main pipe 31 is sequentially mounted from the intake end to the air end, a check valve 3, a gas source Pressure Table 4, adjustable throttle valve 5, cumulative flow meter 6, system pressure table 7, speed regulator valve 8 and instantaneous flow meter 9.
[0042] Since the gas used in the preparation of the oil and gas is not allowed to react with the oil to be tested, an inert gas (such as nitrogen) is selected as a gas source, and the constant voltage gas source 1 is equipped with inertia. Gas tank.
[0043] The shutoff valve 2, the one-way valve 3, and the adjustable throttle valve 5 ...
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The invention discloses a device for measuring the viscosity-temperature coefficient of air-containing lubricating oil, which includes an air supply unit, an air distribution unit, a measurement unit and a constant temperature unit; the measurement unit includes a first outer cylinder, a second outer cylinder, a rotary viscometer and an analysis unit. Balance, the constant temperature unit is used to provide a constant temperature, the gas supply unit provides gas, the gas is diverted by the gas distribution unit and then passed into the first outer cylinder to change the gas content of the lubricating oil, and measure the quality of the gas-containing and non-gas lubricating oil through an analytical balance , measure the viscosity of different air content ratios and different temperatures through a rotary viscometer; the invention also discloses a real-time calculation method for the viscosity-temperature coefficient of lubricating oil with low air content ratio under normal pressure by using the device to obtain different air content ratios The viscosity temperature data results of the lubricating oil. The invention has the advantages of compact structure, simple operation and strong practicability, and can perform real-time test and analysis on the gas content and viscosity-temperature coefficient of two-phase flow lubricating oil under normal pressure and different temperatures.
Description
Technical field [0001] The present invention belongs to the field of fluid lubrication, and is specifically related to a gas-containing oil-containing thermal coefficient measuring device and a real-time measurement method using it under normal pressure, low quality gas rate lubricating oil. Background technique [0002] Fluid lubrication is a main lubrication method used in precision machining machine, turbocharger, turbine expansion unit and mechanical equipment, fluid forming a lubricating oil film in a frictionless side surface having relative movement to reduce the wear of the surface of the part, lowered Friction power consumption, improve work efficiency. [0003] In the transmission, such as bearings, gears, rails, etc., the occasion of the forming lubricating oil film is in the operating conditions of high-speed operation, and the sharp rise in the lubricating oil temperature causes the lubricating oil viscosity to decrease, and at the temperature change, different lubri...
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IPC IPC(8): G01N11/14G01N5/00
Inventor 李瑞珍郭红夏伯乾张泽斌梁存真杨帅李永陈荣尚武宁宁张鹏飞何威佩宋兰兰张绍林
Owner ZHENGZHOU UNIV