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Involute surface envelope ring surface worm and worm wheel tri-dimensional entity modelling method

A toroidal worm and three-dimensional solid technology, applied in 3D modeling, using manual input to modify/create images, image data processing, etc., to achieve the effect of wide application range, strong versatility, and accurate modeling

Inactive Publication Date: 2009-04-29
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no 3D solid modeling method for involute enveloping toroidal worms and worm gears at home and abroad.

Method used

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  • Involute surface envelope ring surface worm and worm wheel tri-dimensional entity modelling method
  • Involute surface envelope ring surface worm and worm wheel tri-dimensional entity modelling method
  • Involute surface envelope ring surface worm and worm wheel tri-dimensional entity modelling method

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Embodiment Construction

[0054] figure 1 It is a reference diagram for the design of involute enveloping toroidal worms, figure 2 It is the three-dimensional solid modeling of the involute enveloping toroidal worm completed according to the design reference drawing. Its main parameters are as follows: worm head number z1=2, worm axial modulus m=6.033, worm pitch circle diameter d1=89.753, worm throat helix angle r=8.1718, axial section pressure angle α=20.10140, min Degree circle helix angle β=6.00030, number of worm gear teeth surrounded by worm z'=7, number of worm gear teeth z2=68, diameter of worm gear pitch circle d2=410.244, transmission center distance a=249.9985.

[0055] Before constructing the three-dimensional entity of the involute enveloping toroidal worm, in order to better understand the present invention, the characteristics of the enveloping involute surface are first analyzed:

[0056] The teeth of the involute surface primary enveloping toroidal worm can be straight involute gear...

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Abstract

The invention discloses a three-dimensional entity modeling method of an involute enveloping toroidal worm and a matching involute secondary enveloping toroidal worm gear. The three-dimensional entity modeling of the involute enveloping toroidal worm is realized on the basis of constructing toroidal spiral lines with the parameter function of toroidal worm spiral lines, and then the three-dimensional entity modeling of the matching involute secondary enveloping toroidal worm gear is completed with the established involute enveloping toroidal worm. The method favorably solves the conjunction problem in three-dimensional entity engagement and can conduct accurate modeling with theoretical precision values. The constructed three-dimensional entity has veritable motion profiles, can provide precise coordinate parameters to numerical control process and is an excellent path for striding towards numerical processing of involute secondary enveloping toroidal worms and worm gears. The modeling method has strong universality and wide application; and therefore the invention can lay the solid basis for following studies on mechanical performance and manufacturing precision of various complex toroidal worms.

Description

technical field [0001] The invention relates to virtual manufacturing technology, in particular to a three-dimensional solid modeling method for involute enveloping toroidal worms and worm gears. Background technique [0002] The double-enveloping toroidal worm drive with involute surface is a new type of drive, and its transmission performance and load capacity have greater potential than the planar double-enveloping toroidal worm drive. According to existing literature reports, as of 1992, the involute enveloping enveloping toroidal worm drive was limited to "involute cylindrical gear-involute enveloping enveloping toroidal worm drive", the reason is that "the grinding of worm and hob "Technology" has not yet been resolved. [0003] Today, digitalization has become an indispensable and main driving force in modern manufacturing. Virtual manufacturing technology is the main embodiment of digitization in the computer 3D environment. It is also the key enabling technology ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T11/80
Inventor 孙昌佑孙传文
Owner SHANGHAI NORMAL UNIVERSITY
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