Friction force measuring method
A measurement method and friction technology, applied in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve problems such as systematic errors, failure to detect friction coefficient lubricants, and low measurement accuracy
Active Publication Date: 2015-04-15
TSINGHUA UNIV
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Problems solved by technology
[0004] So far, important data parameters such as friction force, friction coefficient, and lubricant of equipment friction pairs under high-speed operating conditions have not been found in domestic and foreign literature; the 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 and measurement methods 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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[0022] 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.
[0023] 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 force measuring method. The friction force measuring method comprises the following steps of providing a friction measuring device, wherein the friction measuring device comprises a disk driving system, a ball driving system, a displacement regulating system, an angle regulating system, a loading system, a lubricating system and a testing system, the disk driving system comprises a disk and a disk shaft, and the ball driving system comprises a ball and a ball shaft; respectively regulating the relative position of the disk and the ball and an angle between the disk shaft and the ball shaft by using the displacement regulating system and the angle regulating system; starting the lubricating system to supply lubricating oil to a friction surface between the disk and the ball; starting the disk driving system and the ball driving system to enable the disk and the ball to respectively rotate at an initial speed; starting the loading system to apply a predetermined loading force between the disk and the ball; regulating the disk driving system and the ball driving system to enable the disk and the ball to respectively rotate at a predetermined speed; testing a friction force between the disk and the ball by using the testing system.
Description
technical field [0001] The invention relates to a method for measuring frictional force, in particular to a method for measuring frictional force 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 ...
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IPC IPC(8): G01L5/00
Inventor 梁鹤郭丹张晨辉冯巨震雒建斌雷源忠
Owner TSINGHUA UNIV