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A gear reliability analysis method

An analysis method and reliable technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low, large calculation, error-prone precision, etc., to simplify the calculation process and reduce the calculation Small, the effect of improving precision

Inactive Publication Date: 2018-12-11
LANZHOU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0006] In the existing technology, when calculating the reliability of gears, no matter whether the first-order second-order moment reliability method of the check point or the fourth-order moment reliability method of the mean value is used, the calculation amount is too large, error-prone and the accuracy is not high. , a gear reliability analysis method is proposed, including: according to the parameters of the gear, constructing a function function corresponding to the failure mode of the gear, wherein the function function is used to represent the relationship between the limit state function of the gear and the gear parameters in the failure mode relationship between

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Embodiment Construction

[0055] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, and the following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0056] Aiming at the problems in the prior art that the gear reliability analysis methods are too large in calculation, error-prone and low in precision, a gear reliability analysis method is proposed:

[0057] combine figure 1 , the steps mainly include:

[0058] Step 102: Construct a function function corresponding to the failure mode of the gear according to the parameters of the gear, wherein the function function is used to represent the relationship between the limit state function of the gear and the gear parameters in the failure mode;

[0059] Step 104: Obtain the limit state equation of the functional function, and...

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Abstract

The invention discloses a gear reliability analysis method. According to the parameters of the gear, a function function corresponding to a failure mode of the gear is constructed. The function function is used for expressing the relationship between the limit state function of the gear and the gear parameters under the failure mode. The limit state equation of the function is obtained, and the mean and standard deviation of the limit state equation are obtained. A reliability index of the gear in the failure mode is obtained by using an improved first-order second-moment method and the mean value and the standard deviation. The fourth-order moment method and the reliability index are used to obtain the failure probability of a single failure mode. The gear reliability analysis method provided by the invention is low in computational complexity and is high in precision.

Description

technical field [0001] The invention belongs to the technical field of gear reliability analysis, and in particular relates to a gear reliability analysis method. Background technique [0002] The spindle box is an important transmission part of the CNC machine tool, including the spindle assembly, the reversing mechanism, the transmission mechanism, the braking device, the operating mechanism and the lubrication device, etc. Its main function is to support the spindle and make it rotate, so as to realize the spindle starting, braking, Functions such as shifting and reversing. In order to expand the speed change range of the main shaft, the main shaft box adopts multi-stage gear transmission. Through a certain transmission system, the rotational motion of the motor is transmitted to the main shaft through the gears and transmission shafts in the main shaft box, so that the main shaft can obtain the specified speed and speed. direction. It can be seen that whether the numer...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 王智明郭俊锋张亚飞宋亚龙
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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