Machine element or mechanism – Mechanical movements – Grip units and features
Patent
1984-04-04
1986-02-25
Braun, Leslie A.
Machine element or mechanism
Mechanical movements
Grip units and features
74710, 74690, F16H 1516, F16H 3706, F16H 138
Patent
active
045720150
ABSTRACT:
A compact nutating traction drive transmission is disclosed having particular utility in a vehicle as a steering differential. The transmission includes an input body rotatable about a central axis, first and second cone-like members rotatably mounted on the body on an inclined axis, and a pair of traction rings reacting against the respective cone-like members. A first embodiment includes a tubular shaft and a solid main shaft which are rotatably mounted and pilotably interconnected along the inclined axis, and a coupling apparatus is utilized for transmitting torque independently from the cone-like members to their respective shafts. Similar axially compact gear trains are driven by the respective shafts which have a construction and gear train ratio sufficient for maximizing the effectiveness of the transmission. A second embodiment includes a tubular shaft, a solid shaft, and an extension shaft connected to the second cone-like member for providing a greater resistance to bending centrally thereof than the first embodiment.
REFERENCES:
patent: Re30981 (1982-06-01), Kemper
patent: 4233851 (1980-11-01), Kemper
patent: 4233859 (1980-11-01), Kemper
patent: 4267749 (1981-05-01), Chambers et al.
patent: 4277982 (1981-07-01), Kemper
patent: 4280369 (1981-07-01), Pouliot
patent: 4293050 (1981-10-01), Goloff et al.
patent: 4296647 (1981-10-01), Kemper
patent: 4378708 (1983-04-01), Pouliot
patent: 4495829 (1985-01-01), Kemper
ASME Publication Entitled "Performance of a Nutating Traction Drive" Dated: Aug. 18-21, 1980 by P. Elu and Y. Kemper.
Bednarek Michael D.
Braun Leslie A.
Caterpillar Tractor Co.
Lanchantin, Jr. Charles E.
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