Friction measuring device
A technology of measuring device and friction force, applied in the direction of measuring device, adopting mechanical device, instrument, etc., can solve the problems of application limitation, systematic error, principle error and so on
Active Publication Date: 2015-10-21
TSINGHUA UNIV
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Problems solved by technology
[0004] So far, important data parameters such as friction force, friction coefficient, lubricant and other important data parameters of equipment friction pairs under high-speed operating conditions have not been found in domestic and foreign literature; existing friction performance testing instruments at home and abroad, including technical invention patents, have not found Test instruments that can obtain the above data parameters, therefore, it is necessary to develop test instruments for friction and lubrication performance under high-speed and ultra-high-speed conditions
[0005] In addition, due to the existence of some systematic errors and principle errors of the friction test device and measurement method in the prior art, the measurement accuracy is low, so the application in some precision measurements is also limited
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[0019] The friction measurement device provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] Please also refer to figure 1 and figure 2 , the embodiment of the present invention provides a friction measurement device 1, the friction measurement device 1 includes a support system 10, a disc drive system 220, a ball drive system 240, a displacement adjustment system 260, an angle adjustment system 280, a protection system 290, a loading system 30, a lubrication system 40, and a testing system 50, the support system 10 is located at the bottom of the friction measurement device 1, and is used to carry and fix the disk drive system 220, ball drive system 240, The displacement adjustment system 260, the angle adjustment system 280, the protection system 290, the loading system 30, the lubrication system 40 and the testing system 50 are used to reduce the vibration generated by t...
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The invention relates to a friction measurement device which comprises a disk drive system, a ball drive system, a displacement adjusting system, an angle adjusting system, a loading system, a lubricating system and a test system, wherein the disk drive system drives a disc to rotate through a disc shaft; the ball drive system drives a ball to rotate through a ball shaft; the displacement adjusting system is used for adjusting the relative position between the disc and the ball; the angle adjusting system is used for adjusting the angle between the disc shaft and the ball shaft; the loading system is used for providing a loading force for the disc and the ball; the lubricating system is used for providing lubricating oil for the disc and the ball; and the test system is used for measuring the friction force between the disc and the ball through a tension sensor. The friction measurement device not only can test the friction lubricating property under a high-speed medium-loading working condition but also has the characteristics of high measurement accuracy, good stability and the like.
Description
technical field [0001] The invention relates to a friction measuring device, in particular to a friction measuring device under high-speed conditions. Background technique [0002] With the development of aerospace, aviation, navigation, and high-speed rail equipment industries, equipment manufacturing is developing in the direction of high precision, high speed, and high efficiency. The corresponding equipment needs to operate under harsh conditions such as high speed and high temperature. The linear speed of the high-speed railway vehicle spindle bearing is about 40m / s; the maximum linear speed of the aero-engine bearing is about 180m / s; the maximum speed of the electric spindle can reach 200,000 rpm, and the ultra-high-speed grinding can reach 300m / s. The state of lubrication and friction under high-speed and ultra-high-speed conditions is very important to improve bearing life, processing efficiency and stability. [0003] Huge centrifugal force and thermal effect at hi...
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IPC IPC(8): G01N19/02
Inventor 梁鹤郭丹张晨辉赵仲恺冯巨震刘卉雒建斌雷源忠
Owner TSINGHUA UNIV