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Monitoring method and device for real time dynamic load of bearing and bearing life estimating method

A real-time dynamic and monitoring device technology, applied in the field of bearings, can solve problems such as lack of versatility and inability to install strain gauges, and achieve the effect of good versatility

Pending Publication Date: 2018-03-27
SCHAEFFLER TECH AG & CO KG
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Problems solved by technology

However, in some working conditions, due to the limitation of installation space, strain gauges cannot be installed, resulting in insufficient versatility of this method

Method used

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  • Monitoring method and device for real time dynamic load of bearing and bearing life estimating method
  • Monitoring method and device for real time dynamic load of bearing and bearing life estimating method
  • Monitoring method and device for real time dynamic load of bearing and bearing life estimating method

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Embodiment Construction

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] This embodiment provides a method for monitoring the real-time dynamic load of a bearing, which is used to monitor the real-time load of the bearing in the bearing service system.

[0027] refer to figure 1 As shown, the monitoring method includes the following steps:

[0028] T10: Determine the transfer function of the bearing. The transfer function is a function that reflects the relationship between the load on the bearing and the response signal. The response signal reflects the movement of the bearing when it is loaded;

[0029] T20: Under operating conditions, obtain the response signal of the bearing in real time;

[0030] T30: Obtain the real-time dynamic load of the bearing according to the transfer function and the respo...

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Abstract

The invention provides a monitoring method and device for real time dynamic load of bearing and a bearing life estimating method. The monitoring method includes determining a transmission function ofthe bearing, wherein the transmission function is a function reflecting the relation between a load carried by the bearing and a response signal and the response signal reflects the operation condition of the bearing when carrying the load; acquiring the response signal of the bearing in the operation condition; and acquiring the real time dynamic load of the bearing according to the transmissionfunction and the response signal. Compared with the prior art, the scheme has less restrictions in mounting conditions and load acquisition is more accurate and truer.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a method and device for monitoring real-time dynamic loads of bearings, and a method for evaluating bearing life. Background technique [0002] The life of a bearing plays a decisive role in the healthy operation of the system in which it is used. Once the fatigue failure of the bearing occurs, the life of the bearing is declared to be terminated. [0003] Under standard working conditions, for rolling bearings, the cause of bearing fatigue failure is the cyclic contact stress formed between the rolling elements and the raceways due to the load. The cyclic contact stress is the contact stress that changes periodically with time. Once the load characteristics of the bearing are determined, the cyclic contact stress inside the bearing is then determined. Therefore, the factor directly related to bearing life is the load on the bearing. [0004] In the prior art, the method for monitorin...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01M13/04
CPCG01L5/0009G01M13/045G01L5/00G01M13/04
Inventor 何晨雨魏来吴喜吉尔森·阿瑞玛黄运生
Owner SCHAEFFLER TECH AG & CO KG
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