scholarly journals A study of the crowning method for the type 3 worm gear. 1st report An analysis of calculation method for the basic thread surface of the hob.

1986 ◽  
Vol 52 (481) ◽  
pp. 2443-2448
Author(s):  
Satoshi KISHI ◽  
Muneharu MOROZUMI ◽  
Yoshitaroh YOSHIDA
Keyword(s):  
Calculation Method ◽  
Worm Gear ◽  
Thread Surface ◽  
Type 3

Computerized Design, Generation and Simulation of Meshing of a Spiroid Worm-Gear Drive With Double-Crowned Worm

1998 ◽  
Author(s):  
Mauro De Donno ◽  
Faydor L. Litvin
Keyword(s):  
Worm Gear ◽  
Face Gear ◽  
Transmission Errors ◽  
Gear Drive ◽  
Thread Surface ◽  
Bearing Contact ◽  
Parabolic Function ◽  
Design Generation ◽  
Cone Surface ◽  
Spiroid Worm

Abstract The authors propose methods of computerized design and analysis of a spiroid worm-gear drive with ground worm based on the following considerations: (1) The theoretical thread surface of the hob is generated by a cone surface. (2) The worm surface is crowned in profile and longitudinal directions in comparison with the hob thread surface. (3) The double crowning of the worm enables to localize the bearing contact and obtain a predesigned parabolic function of transmission errors of an assigned level. Computerized design of the worm-gear drive enables to discover and avoid singularities of the generated worm face-gear surface and pointing of teeth. The meshing and contact of the double-crowned worm and the worm face-gear is simulated to determine the influence of misalignment on the shift of bearing contact and transmission errors. Computer program for numerical solution is developed and applied. A numerical example that illustrates the developed theory is provided.

Calculation method for tooth thickness of cylindrical worm gear

2021 ◽  
Author(s):  
Jian Cui ◽  
Yaping Zhao ◽  
Qingxiang Meng ◽  
Gongfa Li
Keyword(s):  
Calculation Method ◽  
Worm Gear

Computerized Design, Generation and Simulation of Meshing of a Spiroid Worm-Gear Drive with a Ground Double-Crowned Worm

1999 ◽  
Vol 121 (2) ◽  
pp. 264-273 ◽  
Author(s):  
M. De Donno ◽  
F. L. Litvin
Keyword(s):  
Worm Gear ◽  
Face Gear ◽  
Transmission Errors ◽  
Gear Drive ◽  
Thread Surface ◽  
Bearing Contact ◽  
Parabolic Function ◽  
Design Generation ◽  
Cone Surface ◽  
Spiroid Worm

The authors propose methods of computerized design and analysis of a spiroid worm-gear drive with ground worm based on the following considerations: (1) The theoretical thread surface of the hob is generated by a cone surface. (2) The worm surface is crowned in profile and longitudinal directions in comparison with the hob thread surface. (3) The double crowning of the worm enables to localize the bearing contact and obtain a predesigned parabolic function of transmission errors of an assigned level. Computerized design of the worm-gear drive enables to discover and avoid singularities of the generated worm face-gear surface and pointing of teeth. The meshing and contact of the double-crowned worm and the worm face-gear is simulated to determine the influence of misalignment on the shift of bearing contact and transmission errors. Computer program for numerical solution is developed and applied. A numerical example that illustrates the developed theory is provided.

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