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Profile modification method for involute spur cylindrical gear pairs and matched dedicated parameterized CAD system

A spur gear, involute technology, applied in geometric CAD, electrical digital data processing, special data processing applications, etc., can solve the problem of failure to effectively solve the problem of tooth profile modification. Evaluation and other issues to achieve the effect of strong versatility, stability and reliability

Active Publication Date: 2017-01-04
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although many technicians have studied the modification method and simulation method of involute cylindrical gear transmission with tooth profile modification, so far they have not been able to solve the problem of how to determine the best modification curve for different specific load conditions. It also fails to effectively solve the problem of meshing performance analysis and evaluation of tooth profile modified involute cylindrical gear pairs

Method used

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  • Profile modification method for involute spur cylindrical gear pairs and matched dedicated parameterized CAD system
  • Profile modification method for involute spur cylindrical gear pairs and matched dedicated parameterized CAD system
  • Profile modification method for involute spur cylindrical gear pairs and matched dedicated parameterized CAD system

Examples

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Embodiment 1

[0099] A pair of involute spur spur gear pairs used in a mine reducer is selected, and the gear pair needs to be used under two different load conditions for an example.

[0100] Explanation: In Example 1, the original parameters of the selected pair of involute spur gear pairs that need to be used under two different load conditions are shown in Table 1.

[0101] Table 1 Transmission parameters of involute spur gear

[0102]

[0103] Since the involute spur gear pair is used under high-speed and heavy-load conditions, there are problems of vibration and impact, which will lead to unstable transmission of the reducer and problems of noise.

[0104] In order to solve the above problems, the standard involute spur gear pair cannot be directly used, but the involute spur gear pair after tooth profile modification should be used. Therefore, the two gears in the gear pair need to be The modified curve is used for design calculation.

[0105] The design requirements are as foll...

Embodiment 2

[0224] Select a pair of involute spur gear pairs as shown in Table 1, when the gear pair needs to be used under the first specific load situation shown in Table 1, use a kind of involute spur gear pair of the present invention The tooth profile modification method of the cylindrical gear pair is matched with a special parametric CAD system, and the modification curve that the gear pair should adopt is designed as the content of this embodiment.

[0225] A special parametric CAD system supporting the tooth profile modification method of an involute spur gear pair according to the present invention is characterized in that it is constructed based on the Visual C++ 2012 platform and uses Microsoft MFC in combination with ANSYS parametric design language APDL The command flow is written, and the structure of the special parametric CAD system is designed based on the dialog box form;

[0226] Such as figure 2 As shown, the special-purpose parametric CAD system includes the follow...

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Abstract

The invention discloses a profile modification method for involute spur cylindrical gear pairs and a matched dedicated parameterized CAD system. The method mainly comprises the steps of establishing a universal composite profile modification curve equation, and then obtaining multiple first composite profile modification curves and second composite profile modification curves for use by means of an orthogonal experimental method; after simulation modification, conducting simulation transmission testing on the gear pairs one by one so as to screen out first composite profile modification curves and second composite profile modification curves meeting design requirements; by means of the matched dedicated parameterized CAD system, fusing modeling of the involute spur cylindrical gear pairs after profile modification, meshing simulation analysis and extraction of meshing performance indexes of the profile modification gear pairs into one system. The profile modification method is high in universality and stable and reliable in modification quality. The CAD system has multiple functions, is convenient to operate, and can be efficiently used for auxiliary design during gear research and development.

Description

technical field [0001] The invention relates to a tooth profile modification method of a gear pair and a parametric CAD system matched therewith; in particular, a tooth profile modification method of an involute spur gear pair and a special parametric CAD system matched therewith. Background technique [0002] During the use of the involute spur gear pair, due to the influence of various factors such as manufacturing and installation errors, elastic bending deformation and thermal deformation after loading, and the meshing of the involute spur gear transmission itself In-mesh and out-of-mesh impacts and the impact of alternate meshing of single and double teeth lead to poor stability of gear transmission, especially for gear pairs used under high-speed and heavy-load conditions, there will also be obvious problems such as vibration and noise, which seriously affect the The service life of the gear pair requires tooth profile modification. [0003] The tooth profile modifica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 李学艺王宁宁钟佩思曾庆良张鑫王坤张国鹏
Owner SHANDONG UNIV OF SCI & TECH