Worm/worm gear transmission

Details Worm/worm gear transmission Worm/worm gear transmission

1999-04-12

2000-11-21

Ta, Khoi Q.

Machine element or mechanism

Gearing

Directly cooperating gears

74458, F16H 116

Patent

active

061486833

ABSTRACT:
A worm/worm gear transmission, particularly for use in a helicopter, and which includes an enveloping-type worm gear (3) having less than 24 teeth which are generated by an enveloping thread (1). The angle of one revolution of the thread has more than 15 degree. Different profiles of the worm gear are generated by a modified worm thread (9).

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Design of Industrial Double-Enveloping Wormgears (ANSI/AGMA-6030-C87).
Gear Geometry and Applied Theory by Faydor L. Litvin, P T R Prentice Hall, Englewood Cliffs, New Jersey 07632.
Software Strategies Magazine, dated Mar. 1996, p. 51.

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