Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Coupling transmits torque via radially directed pin
Patent
1994-11-23
1996-06-11
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling accommodates drive between members having...
Coupling transmits torque via radially directed pin
464109, 464118, 464905, F16D 320, F16D 326
Patent
active
055251110
ABSTRACT:
The four trunnions (11) transmit the rotation of the shaft (8) to the body (1) through the intermediately of four tracks (3) which oscillate by rolling without sliding on the inner wall of the body (1). In addition, each track (3) is coupled angularly with the two adjacent tracks by mating teeth (7) so that any inclination of one track produces a contrary inclination of the two adjacent tracks and consequently an inclination in the same direction of the opposite track. The radii (a, b) according to which the tracks roll against the inner wall of the body and the position of the center of gravity (G) of the tracks are such that the centrifugal force (F) returns the tracks into neutral position. The inherent oscillation frequency of the tracks under the effect of this return is equal to twice the speed of rotation of the joint. This relationship is true for every joint rotation speed because the centrifugal force is proportional to the square of the speed of rotation, and the inherent frequency is proportional to the square root of the return force, therefore proportional to the speed of rotation.
REFERENCES:
patent: 2670614 (1954-03-01), Wildhaber
patent: 4487594 (1984-12-01), Sindelar
patent: 4689035 (1987-08-01), Orain
Dunn Eileen A.
Glaenzer Spicer
Stodola Daniel P.
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