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A method for generating real tooth surface of circular arc tooth profile double-arc spiral gear

A technology of helical gears and arc teeth, which is applied to the creation of real tooth surfaces of double-arc helical gears with arc tooth profiles, and the field of new gear modeling, which can solve problems such as tedious parametric modeling work

Active Publication Date: 2019-01-18
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

[0004] The present invention provides a method for creating a real tooth surface of a circular-arc tooth profile double-arc helical gear from the original point of view of creating a tooth profile. The circular-arc tooth profile double-arc helical gear pair is generated through a fast digital program modeling method, which is suitable for To solve a large number of tedious parametric modeling work problems

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  • A method for generating real tooth surface of circular arc tooth profile double-arc spiral gear
  • A method for generating real tooth surface of circular arc tooth profile double-arc spiral gear
  • A method for generating real tooth surface of circular arc tooth profile double-arc spiral gear

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Embodiment Construction

[0044] Embodiments of the present invention will be described with reference to the accompanying drawings, and further details will be given below in conjunction with the accompanying drawings and examples.

[0045] A method for creating a real tooth surface of a circular-arc tooth profile double-arc helical gear, which includes the steps of:

[0046] (1) Determine the parameters of the required arc tooth profile double-arc helical gear and arc tooth-shaped rack: modulus m=3; cylindrical gear teeth ns=40; rack arc tooth radius rG=80; circle Arc tooth profile radius P=7; addendum height ha=3; tooth bottom height hf=3.75; vertical distance E=4 between arc tooth coordinate origin Oa and arc tooth profile center; arc tooth coordinate origin Oa and circle The horizontal distance between the centers of arc tooth profiles F=0; α constraints:

[0047] (2) The determined coordinate system includes: S a -O a x a the y a z a ——Central coordinate system of arc tooth profile rack...

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Abstract

A method for generating real tooth surface of circular arc tooth profile double-arc spiral gear includes the following steps: 1, determining parameters of circular arc tooth profile double-arc spiralgear, 2, according to that relative motion relationship between the circular arc tooth profile double-arc spiral gear and the spiral tooth generating rack, establishing a space coordinate system of the circular arc tooth profile double-arc spiral gear and the spiral tooth generating rack and a space coordinate system generated by the tooth surface of the spiral tooth generating rack, 3, establishing the tooth profile equation of the arc tooth producing shape rack, 4, deriving that tooth surface equation of the arc tooth generating rack; 5, fitting the tooth surface of the arc tooth generate rack; 6, solving the meshing equation according to simulating the conjugate meshing process of the arc tooth generating rack and the arc tooth profile double-arc spiral gear; 7, deriving the tooth surface equation of the arc tooth profile double-arc spiral gear; 8, programming and calculating the tooth surface point cloud of the arc tooth profile double-arc spiral gear; The method has the advantagesof large coincidence coefficient of circular arc tooth profile double arc spiral gears, stable and reliable transmission, strong bearing capacity and meeting the transmission requirements under extreme conditions.

Description

technical field [0001] The invention relates to a novel gear modeling technology, mainly relates to a method for creating a real tooth surface of a double-arc helical gear with an arc tooth profile, and belongs to the technical field of gears. Background technique [0002] The circular arc tooth profile double arc helical gear is an innovation of the tooth profile on the basis of the traditional herringbone tooth, which aims to improve the gear transmission performance, meshing degree, overlap coefficient and load capacity, and can replace straight teeth, helical teeth and herringbone teeth Tooth and other cylindrical gears and most other application fields. With the rapid development of computer technology, relying on computer-aided design methods can fully expand the scope of gear visual design, but the development field of large-scale modeling software that is popular in the market has not fully covered some special parts fields, for some complex Parts with curved surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20Y02T90/00
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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