Method for generating real tooth surface of arc tooth surface gear based on circular arc tooth profile

A technology of arc-shaped teeth and face gears, which is applied in the field of gears and can solve problems such as cumbersome parametric modeling work

Pending Publication Date: 2018-12-21
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

[0003] The present invention starts from a new perspective of changing the tooth structure and invents a method for creating a real tooth surface of an arc-shaped tooth surface gear based on an arc-sha

Method used

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  • Method for generating real tooth surface of arc tooth surface gear based on circular arc tooth profile
  • Method for generating real tooth surface of arc tooth surface gear based on circular arc tooth profile
  • Method for generating real tooth surface of arc tooth surface gear based on circular arc tooth profile

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Embodiment Construction

[0061] The embodiments of the present invention are described with reference to the accompanying drawings, and further detailed descriptions are given below with reference to the accompanying drawings and examples.

[0062] A method for creating the true tooth surface of an arc tooth surface gear based on a circular arc tooth profile, which includes the steps:

[0063] (1) Determine the required model parameters of the arc tooth profile arc tooth surface gear and the arc tooth profile rack:

[0064] Module m=3; cylindrical gear tooth number ns=40; face gear tooth number n2=90; face gear inner radius R 2min =125; outer radius of face gear R 2max =145; rack arc tooth radius rG=60; arc tooth profile radius P=30; tooth top height ha=3; tooth bottom height hf=3.75; between the arc tooth coordinate origin Oa and the arc tooth profile center Vertical distance E=10; the horizontal distance between the origin Oa of the arc tooth coordinate and the center of the arc tooth profile F=25.92; α c...

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Abstract

The invention discloses a method for generating real tooth surface of arc tooth surface gear based on circular arc tooth profile, which comprises the following steps: firstly, determining model parameters of arc tooth surface gear and arc tooth generating rack; 2, establishing a spatial coordinate system according to that relative motion relation among the arc tooth produce rack, the arc tooth cylindrical gear and the arc tooth surface gear; 3, based on that tooth profile of the arc, establishing the tooth profile equation of the arc tooth generate rack; 4, deriving that equation of circular arc tooth profile arc tooth surface gear by the coordinate transformation method; 5, solving the meshing equation according to the conjugate meshing process of the simulated arc tooth cylindrical gearand the arc tooth surface gear; 6, calculating the tooth surface point cloud of the arc tooth surface gear through digital programming, and obtaining a three-dimensional model of the arc tooth surfacegear through array fitting. The utility model has the advantages of large coincidence coefficient of the tooth shape, stable and reliable transmission, strong bearing capacity, and can meet the transmission requirements under extreme conditions.

Description

Technical field [0001] The invention relates to a novel gear modeling technology, and mainly relates to a method for creating a true tooth surface of an arc tooth surface gear based on an arc tooth profile, and belongs to the technical field of gears. Background technique [0002] The arc tooth profile curved surface gear is an innovation of the tooth profile and tooth profile on the basis of the traditional straight tooth surface gear. It aims to improve the gear transmission performance, meshing degree, overlap coefficient and load-bearing capacity. It can become a new type of surface gear in the future. One of the development paths. With the rapid development of computer technology, relying on computer-aided design means can fully broaden the scope of gear visual design, but the development field of large-scale modeling software popular on the market has not fully covered some special parts fields. The method of the present invention is aimed at For some problems that are dif...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20
Inventor 莫帅朱晟平冯志友石丽娟唐文杰岳宗享党合玉邹振兴张廷巩嘉贝冯战勇
Owner TIANJIN POLYTECHNIC UNIV
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