Compound planocentric cycloidal gear drives with orthogonal plan

Details Compound planocentric cycloidal gear drives with orthogonal plan Compound planocentric cycloidal gear drives with orthogonal plan

1991-10-10

1992-06-23

Wright, Dirk

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Gear has plural circumferential tooth sets

475178, F16H 1308

Patent

active

051238829

ABSTRACT:
A pinion shaft has thereon a sun gear for imparting rotational motion to or to be rotated by a pair of planetary gears which rotate about space axes extending parallel to and lying in a first plane containing the axis of said shaft. Each of a pair of planocentric compound cycloidal discs has an internal set of gear teeth constantly meshing with the teeth of the planetary gears, and an external set of cycloidal teeth engaged with the cylindrical teeth of a ring gear that is rotatable coaxially of the shaft. The cycloidal discs rotate eccentrically about the axis of the shaft, and respectively, about a second pair of axes extending parallel to and equi-spaced from diametrally opposite sides of said shaft, and lying with the axis of the shaft in a second plane that extends normal to the first plane. During operation the eccentrically displaced rotational axes of the compound cycloidal discs may revolve about the axis of the shaft, and in so doing the two planes containing the axes of rotation of the planet gears and discs, respectively, always intersect along the rotational axis of the shaft, at right angles.

REFERENCES:
patent: 1467773 (1923-09-01), Bennett
patent: 1578965 (1926-03-01), Eck
patent: 3129611 (1964-04-01), Lee
patent: 4297920 (1981-11-01), Richter
patent: 4884473 (1989-12-01), Lew
patent: 4898065 (1990-02-01), Ogata et al.

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