Method of utilizing finite element modeling to judge whether turntable bearing meets requirements

A slewing bearing, a technology that meets the requirements, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of high computer configuration requirements, calculation failure, long calculation time, etc., meet the reduced requirements and shorten the calculation time , the effect of reducing requirements

Inactive Publication Date: 2013-05-22
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0004] In order to solve the problems of high computer configuration requirements, long calculation time and easy failure of calculation when the existing finite element method first calculates the load of the bearing rolling body and then uses the load data to calculate the safety factor, the present invention provides a method using Finite element modeling

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  • Method of utilizing finite element modeling to judge whether turntable bearing meets requirements
  • Method of utilizing finite element modeling to judge whether turntable bearing meets requirements
  • Method of utilizing finite element modeling to judge whether turntable bearing meets requirements

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Embodiment Construction

[0026] In order to understand the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples.

[0027] For example, the structural form of the slewing bearing used by a certain main engine is a three-row roller slewing bearing, as attached figure 1 As shown, it mainly consists of inner rings (1, 2), rolling elements (3, 7, 9), cages (8, 10), spacer blocks (4), sealing rings (5, 6, 11), outer rings ( 12) Composition, wherein the upper row of rolling elements are the main thrust rollers, the lower row of rolling elements are auxiliary thrust rollers, and the middle row of rolling elements are radial rollers. The main structural parameters of the bearing are as follows: the diameter of the center circle of the main thrust roller is 5796 mm, the diameter of the main thrust roller is 50 mm, the length of the main thrust roller is 50 mm, and the number of the main thrust ro...

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Abstract

Provided is a method of utilizing finite element modeling to judge whether a turntable bearing meets requirements. A turntable bearing model is established in ANSYS according to a structure parameter of the turntable bearing. Total freedom constraints are imposed on a lower end face of an outer ring of the turntable bearing model, and a radial load, an axial load and an overturning moment load are imposed on an inner ring. Load data of a rolling body is solved and obtained. The security coefficient of the bearing is calculated by utilizing the maximum rolling body load data, and whether the security coefficient meets the requirements. According to the method of utilizing the finite element modeling to judge whether the turntable bearing meets the requirements, the ANSYS is utilized to establish a 'rod-entity' hybrid finite element model of the turntable bearing, and a contact model between an entity rolling body and an entity rolling path is dispensed. The finite element model obviously lowers requirements to computer resources, and the calculation time is greatly shortened.

Description

technical field [0001] The invention belongs to the field of checking of slewing bearings, and specifically relates to a method for judging whether the slewing bearing meets requirements by using finite element modeling. Background technique [0002] The slewing bearing is a kind of bearing with a special structure that can bear the combined action of radial load, axial load and overturning moment load at the same time. It is widely used in cranes, excavators, shield machines, stockers, wind power generators, medical CT In the rotary mechanism of mechanical systems such as aircraft, radar antenna and astronomical telescope. The analysis and calculation of the rolling element load distribution of the slewing bearing and the further calculation of the safety factor of the bearing are the basis for the type selection application and structural design of this type of bearing. The most critical is the calculation of the rolling element load distribution of the slewing bearing. ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李云峰
Owner HENAN UNIV OF SCI & TECH
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