Compensating coupling

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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F16D 3/56 (2006.01)

Patent

CA 2293757

The invention relates to a compensating coupling transmitting torque in order to compensate for imprecise alignments in machine elements that are to be joined. One disadvantage with prior art is that these couplings are relatively complicated to produce and that the service life of the spring elements used is limited. The spring element in the inventive coupling is characterised in that recesses (7, 8, 11) and threaded holes (10, 12) are provided on the periphery of the flange of the two half-couplings (1, 2) so that the radially rigid springs (9) that are used as connecting elements or other rigid spring elements inserted in the direction of the periphery fit exactly into the recesses or threaded holes in order to transmit the appropriate torque and to compensate for axial and radial alignment errors. The spring (9) that transmits torque is designed in such a way that it compensates for misalignment of shafts and transmits high amounts of torque. The spring (9) also possesses a long service life as a connecting and transmitting element.

L'invention concerne un accouplement compensateur servant à transmettre des couples pour compenser des imprécisions d'alignement des éléments de machine à raccorder. L'inconvénient de la technique antérieure réside dans le fait que ces accouplements sont relativement complexes à produire, et la résistance à la fatigue des éléments ressorts insérés est limitée. L'élément ressort élastique selon l'invention est caractérisé en ce que des évidements (7, 8, 11) et des trous filetés (10, 12) sont présents à la périphérie du bord des demi-accouplements (1, 2) de sorte que des ressorts (9) à rigidité radiale, se présentant sous la forme d'éléments de raccordement, ou d'autres éléments ressorts rigides insérés dans le sens périphérique sont logés de façon ajustée dans ces évidements et ces trous filetés pour transmettre des couples adaptés et pour corriger les défauts d'alignement axial et radial. La conception particulière du ressort (9) transmettant les couples permet non seulement de compenser tout décalage d'arbre, mais aussi de transmettre des couples élevés, et d'assurer simultanément la longévité du ressort (9) se présentant sous la forme d'élément de raccordement et de transmission.

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