Internally meshing planetary gear structure and flexible meshing

Details Internally meshing planetary gear structure and flexible meshing Internally meshing planetary gear structure and flexible meshing

1994-11-02

1995-07-04

Wright, Dirk

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Particular gear tooth

F16H 132

Patent

active

054295564

ABSTRACT:
An internally meshing planetary gear structure or a flexible meshing type gear meshing structure is intended to achieve the lightening, miniaturization and high load capacity by increasing the meshing points of the gear even is the difference in the teeth number between the external gear and the internal gear is two or more. The difference in the teeth number between each of the external gears and the internal gear is set to be N (N: integer being two or more), the tooth profile of the external gear is constructed on the basis of the innermost curve of the epitrochoid parallel curves in N pieces which are superposed to be shifted in phase from each other, and the tooth profile of the internal gear is constructed on the basis of the innermost curve of the trochoid internally enveloping curves in N pieces which mesh with the above epitrochoid parallel curves and which are superposed to be shifted from each other by the same phase as in the external gear.

REFERENCES:
patent: 3660917 (1972-05-01), Bevan
patent: 3744941 (1973-07-01), Nestor
patent: 3998112 (1976-12-01), Pierrat
patent: 4117746 (1978-10-01), Pierrat
patent: 4487091 (1984-12-01), Pierrat
patent: 4524644 (1985-06-01), Pierrat
patent: 4549450 (1985-10-01), Pierrat
patent: 4561833 (1985-12-01), Miegishi
patent: 4584904 (1986-04-01), Distin, Jr. et al.
patent: 4673342 (1987-06-01), Saegusa

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