Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1983-01-04
1985-06-25
Herrmann, Allan D.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74409, 74462, 74785, F16H 128, F16H 5518
Patent
active
045246432
ABSTRACT:
The teeth of the sun pinion, planet wheels and hollow wheel have a profile correction changing continuously along the gear width and varying in opposite directions between the meshing gears. The sun pinion, hollow wheel and planet carrier are so mounted as to be fixed in the axial direction, whereas the planet wheels, allowed to slide individually in the axial direction on their stub shafts rigid with the planet carrier, are responsive to the axial force exerted by cup springs and mounted for swivel movement within predetermined limits on pendulum bearings. Furthermore, all the wheels, pinion and hollow wheel have crowned teeth. Due to their particular mounting, the planet wheels can swivel to a certain degree so that under the action of the cup springs even in case of tooth and assembly defects as well as in case of untrue running the teeth are constantly kept directly in their optimal meshing engagement, with the consequence that not only a substantially play-free gear operation but also a perfectly uniform load distribution in the gear are achieved.
REFERENCES:
patent: 618272 (1899-01-01), Johnson
patent: 2335504 (1943-11-01), Gazda
patent: 2682760 (1954-07-01), Shenk
patent: 3315546 (1967-04-01), Fritsch
patent: 3943780 (1976-03-01), Klaue
Shigley and Vicker, "Theory of Machines and Mechanisms", McGraw Hill, New York, 1980, pp. 297-300.
Hauk Peter
Ziegler Rolf
Herrmann Allan D.
Mavilor Systemes S.A.
Quiray Arthur T.
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