Rotary shafts – gudgeons – housings – and flexible couplings for ro – Torque transmitted via flexible element – Element positioned between intermeshing teeth on driving and...
Patent
1987-06-25
1989-01-03
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Torque transmitted via flexible element
Element positioned between intermeshing teeth on driving and...
464 76, 464 83, F16D 368
Patent
active
047954027
ABSTRACT:
A resilient shaft coupling having two metal parts that include an inner coupling ring and, coaxial thereto, an outer coupling ring. The facing generated surfaces of the rings are formed with a number of substantially radial cams or dogs which mesh with one another alternately in the circumferential direction and extend to near the pertaining opposite generated surface. Each two circumferentially consecutive cams or dogs form a pair whose adjacent surfaces are concave and delimit a chamber whose longitudinal axis extends parallel to the rotational axis of the coupling, and in which a resilient coupling member is disposed. The coupling members are radially biased or pre-loaded by a predetermined amount, and are secured to the generated surfaces of the inner and outer ring coupling rings. With the coupling in its rest position, gaps or spaces are present between each resilient coupling member and each cam or dog, and permit the members to deform freely and thus to be stressed in shear. The advantage of this shear compression is that the coupling has a very reduced torsional stiffness at low torques, and operates without backlash or play at low torques.
REFERENCES:
patent: 3372561 (1968-03-01), Howard et al.
patent: 3505832 (1970-04-01), Braithwaite
patent: 3621675 (1971-11-01), Conaghan et al.
Hackforth GmbH & Co. KG
Stodola Daniel P.
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