Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1987-02-09
1989-06-27
Wright, Dirk
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74805, F16H 128
Patent
active
048418102
ABSTRACT:
This invention discloses a planetary drive comprising a first rotary member with an internal circular cylindrical traction surface or an internal ring gear rotatably mounted on a first shaft in a first eccentric relationship with respect to the central axis of the first shaft, and a second rotary member with an external circular cylindrical traction surface or an external gear rotatably mounted on the first shaft in a second eccentric relationship with respect to the central axis of the first shaft wherein the first and second eccentric relationships are diametrically opposite to one another. One of the first and second rotary members is coupled to a second shaft disposed in line with the first shaft by a first flex coupling while the other of the first and second rotary members are coupled to a stationary frame rotatably supporting the first and second shafts by a second flex coupling, wherein the first and second flex couplings provide nonrotatable and laterally slidable coupling between two elements disposed in an axially parallel and radially off-set relationship.
REFERENCES:
patent: 987430 (1911-03-01), Conant
patent: 2972910 (1961-02-01), Menge, Sr.
patent: 3160032 (1964-12-01), Black
patent: 3190148 (1965-06-01), Flichy
patent: 3472097 (1969-10-01), Huska
patent: 3726158 (1973-04-01), Brown
patent: 3994187 (1976-11-01), Milenkovic
patent: 4621543 (1986-11-01), Gabilondo
patent: 4640154 (1987-02-01), Osborn
patent: 4665771 (1987-05-01), Mitchell
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