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A prediction method for multi-axis fatigue life of tire unloader bearing

A fatigue life and prediction method technology, applied in computer-aided design, special data processing applications, instruments, etc., can solve problems such as bearing failure, safety accidents, etc., and achieve the effect of prediction models and theoretical science

Active Publication Date: 2022-07-05
FUJIAN UNIV OF TECH
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Problems solved by technology

Complex working conditions are likely to cause bearing failure and cause safety accidents

Method used

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  • A prediction method for multi-axis fatigue life of tire unloader bearing
  • A prediction method for multi-axis fatigue life of tire unloader bearing
  • A prediction method for multi-axis fatigue life of tire unloader bearing

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Embodiment Construction

[0064] The invention is based on the multi-axis fatigue critical surface theory, combined with ANSYS and ADAMS numerical simulation platform to predict the fatigue life of the bearing at the bottom rocker arm of the giant tire unloader. The specific structure of the tire unloader is as follows: figure 1 shown. The tire unloader has a total of 8 guide wheels, 16 pairs of rocker arms, and two deep groove ball bearings are installed on each rocker arm.

[0065] The specific operation steps are as follows, the first part: establish a three-dimensional model of the tire unloader, such as figure 2 and import the 3D model of the tire unloader into ADAMS, add relevant constraints and establish a virtual prototype of the tire unloader system, such as image 3 As shown in the figure, firstly carry out the dynamic simulation analysis of the tire unloader as a whole, simulate the operation of the tire unloader, and obtain the dynamic load at the bearing at the bottom rocker arm of the t...

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Abstract

The invention discloses a method for predicting the multi-axis fatigue life of a tire unloader bearing. The multi-axis fatigue critical surface theory is used to predict the bearing fatigue life of a tire unloader. Compared with the traditional L-P bearing life prediction theory, it only considers For the influence of normal stress on life, the present invention considers the influence of shear, tension and compression multi-axis random variable amplitude stress, which is more in line with the actual situation of the bearing, and the prediction model and theory are also more scientific.

Description

technical field [0001] The invention belongs to the field of tire unloaders, and particularly relates to a method for predicting the multi-axis fatigue life of a tire unloader bearing. Background technique [0002] With the increase in the number of mining machinery in my country, the number of tires used has also increased. The giant tire unloader is specially used to unload mining tires weighing up to 6t. During the tire processing and production, the tire unloader needs to be unloaded and turned 90°. During the turning process, due to the huge inertia force of the tire, the tire It is easy to collide with the tire unloading device, causing system vibration, and the bearing in the tire unloading device will also bear complex and changeable loads. Complicated working conditions can easily cause the bearing to fail and cause safety accidents. SUMMARY OF THE INVENTION [0003] In order to solve the deficiencies in the prior art, the present invention aims to provide a met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06T17/00G06F119/04G06F119/14
CPCG06F30/23G06T17/00G06F2119/14G06F2119/04Y02T90/00
Inventor 凌静秀程龙王乾廷
Owner FUJIAN UNIV OF TECH
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