Axially stiff link

Details Axially stiff link Axially stiff link

1995-03-15

1997-01-14

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

403 74, 403291, 464112, 464147, F16D 316

Patent

active

055933513

ABSTRACT:
The axially stiff link provides a rigid connection linking two shaft segments (1, 2) of a shaft such that it can bend and or twist yet remain rigid which no slop for high tolerance positioning applications. The link is composed of two rolling elements (4) attached to the shaft segments (1, 2) having a rolling line contact (10) with each other. The rolling elements (4) are held together and preloaded by a ring spring (6) which encircles a portion of the rolling element extending transversely from the shaft segment and engages it by rolling line contact (8). The rolling elements may be solid plain curved portions of the shaft ends, a cylindrical bar, cylindrical bar pairs, or conical pairs to provide for torsional as well as axial bending in the link. Closely spaced perpendicularly disposed axial links provide for two axis bending of the shaft.

REFERENCES:
patent: 430267 (1890-06-01), Boub
patent: 1281918 (1918-10-01), Ecaubert
patent: 3073630 (1963-01-01), Kuhn
patent: 3087314 (1963-04-01), Jarvis
patent: 3405540 (1968-10-01), Johnson
patent: 3975923 (1976-08-01), Grimpe
patent: 4496331 (1985-01-01), Atkin
patent: 4565541 (1986-01-01), Obrecht
patent: 4643699 (1987-02-01), Taig
patent: 4840601 (1989-06-01), Denman
patent: 5102255 (1992-04-01), Heinz
patent: 5205789 (1993-04-01), Falgout

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