Shaft-coupling
AssigneeBalcke-Duerr AG
InventorKurt G. Fickelscher
Life of this patent
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Abstract
A shaft-coupling having two halves, each formed with at least two flat, sloping surfaces running at right angles to a load-transfer direction, each pair of sloping surfaces, facing each other on the two halves of the coupling, defining a space therebetween. Arranged in these spaces are sliding wedges each comprising two flat, sliding, surfaces facing away from each other and supported upon a pressure-element. In order to ensure that a shaft-coupling of this kind be suitable for large torsion-angles, absorb high torques and, in addition, has a small structural volume, a spring-element, adapted for the radial spring-action, is provided between at least one sliding wedge and the pressure-element.
Claims8
In a shaft-coupling formed of two halves each having at least two flat sloping surfaces running at right angles to a load-transfer direction;
- a sloping surface of one of said halves facing a sloping surface of the other half to form a pair;
- each such pair of facing flat sloping surfaces defining a gap therebetween in which a wedge is slidably mounted;
- each wedge having two flat sliding surfaces facing away from each other;
- said sliding surfaces of said wedges facing the sloping surfaces of said gaps in which said wedges are slidably mounted;
- and a pressure-element, mounted inside said shaft-coupling-forming halves radially inwardly of said wedges, upon which pressure elements said sliding wedges are supported, the improvement therein which comprises:
- spring-elements for radial spring-action on said sliding wedges, each spring-element being mounted between one of said sliding wedges and said pressure-element and said pressure-element being formed with radial chambers, each spring-element being received in one of said radial chambers.
A shaft-coupling formed of two halves each having at least two flat sloping surfaces running at right angles to a load-transfer direction;
- a sloping surface of one of said halves facing a sloping surface of the other half to form a pair;
- each such pair of facing flat sloping surfaces defining a gap therebetween in which a wedge is slidably mounted;
- each wedge having two flat sliding surfaces facing away from each other;
- said sliding surfaces of the wedge facing the sloping surfaces of the gap in which the wedge is slidably mounted;
- and a pressure-element mounted inside said shaft-coupling-forming halves radially inwardly of said wedges, said pressure element being formed with a radial chamber for each wedge, a piston in each such radial chamber with said sliding wedge being supported on said piston, said pressure element further being formed with a central chamber in fluid communication with each radial chamber, a piston in said central chamber, a pressure medium in said central and radial chambers, and a spring in said central chamber for exerting a spring-action on said piston in said central chamber, said spring action being transmitted to each sliding wedge via the pressure medium and the piston in each radial chamber.
Dependencies are inferred from the claim text.