Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Torque transmitted via intermeshing teeth on drive and...
Patent
1980-07-21
1983-07-26
Lazarus, Ira S.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling accommodates drive between members having...
Torque transmitted via intermeshing teeth on drive and...
464162, 464182, 403359, F16D 318
Patent
active
043952470
ABSTRACT:
A coupling between a hub (10) and a shaft (11) has first and second splines (512,513; 530,531) connecting the hub to the shaft. The first splines extend axially and are straight while the second splines are helical. A nut (521) on the shaft urges the hub axially toward a shoulder (527) on the shaft. The first and second splines, being of different helix angles, co-operate to urge the spline faces circumferentially into engagement to take up any clearance therebetween. The different helix angles also have the effect of limiting axial movement of the hub under the nut load. On application of the nut at an initial moderate torque the hub takes up an initial axial position. On further, more powerful, application of the nut, the hub is urged axially against the shoulder (527) which provides a final limit to movement of the hub thereby to avoid undue circumferential stress in the splines.
REFERENCES:
patent: 2785550 (1957-03-01), Petrie
patent: 3469868 (1969-09-01), Freeman et al.
patent: 3602535 (1971-08-01), Behning et al.
patent: 3900270 (1975-08-01), Rhodes
patent: 3970398 (1976-07-01), Wilson
patent: 4292001 (1981-09-01), Snell
Lazarus Ira S.
Rolls-Royce Limited
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