A method and testing device for determining friction torque between roller and raceway of rolling bearing
A rolling bearing and friction torque technology, which is applied in the field of determination method and testing device for friction torque between rolling bearing rollers and raceways, can solve problems such as shortening bearing fatigue life, and achieve the effect of large radial load and high-precision decoupling measurement
Active Publication Date: 2022-04-29
BEIJING JIAOTONG UNIV
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Problems solved by technology
[0003] The friction between the roller and the raceway makes the bearing raceway more prone to peeling, which significantly shortens the fatigue life of the bearing
Method used
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[0058] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.
[0059] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the inventio...
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The present invention provides a method and testing device for determining the friction torque between the rollers and raceways of a rolling bearing. Under the condition that the rotational speed of the rolling bearing is known, the functional relationship between the total friction torque M of the rolling bearing and the applied load P is M( P), the variation of the total friction moment M is mainly caused by the friction moment M between the roller and the raceway associated with the applied load F cause, the applied load P is divided into n segments, and the frictional moment M between the roller and the raceway when the applied load is P F can be loaded from P i Change to P i+1 Friction torque increment ΔM between roller raceways F Accumulated to obtain. A test device for friction torque of horizontal rolling bearings is also proposed to realize the above determination method. The invention creates important conditions for state evaluation and fatigue life prediction of rolling bearings.
Description
technical field [0001] The invention belongs to the technical field of bearing testing, and relates to a method and a testing device for determining the frictional moment between a rolling bearing roller and a raceway. Background technique [0002] The total frictional moment of the rolling bearing includes the frictional moment between the roller and the raceway, the frictional moment between the roller and the cage, and the dragging frictional moment between the components in the bearing and the lubricating oil (grease), etc. The existing experimental devices and methods are suitable for testing the total friction torque of rolling bearings, which is the sum of all the friction torques mentioned above. At present, there is a lack of effective methods for testing the friction torque between rollers and raceways of rolling bearings, and the friction torque between rollers and raceways is a key mechanical parameter for the fatigue reliability evaluation and life prediction of...
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IPC IPC(8): G01L5/00G01M13/04
CPCG01L5/0009G01M13/04
Inventor 孙守光王曦李强侯宇邹骅刘志明王文静
Owner BEIJING JIAOTONG UNIV