Browse Prior Art Database

Damping Coupling

IP.com Disclosure Number: IPCOM000083245D
Original Publication Date: 1975-Apr-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Baumeister, HK: AUTHOR [+4]

Abstract

Illustrated is a combined viscous and frictional damping coupling member, for use in coupling an intermittently or reciprocably driven member to the driving member. The problem which exists is that when the drive member is activated, it is started from zero velocity and must accelerate a mass to be driven from zero velocity to a final velocity in a short amount of time. It is desired that the final velocity be substantially constant and that velocity variations and oscillations be minimized or eliminated entirely.

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Damping Coupling

Illustrated is a combined viscous and frictional damping coupling member, for use in coupling an intermittently or reciprocably driven member to the driving member. The problem which exists is that when the drive member is activated, it is started from zero velocity and must accelerate a mass to be driven from zero velocity to a final velocity in a short amount of time. It is desired that the final velocity be substantially constant and that velocity variations and oscillations be minimized or eliminated entirely.

The device shown dissipates excess energy when the drive element 1 is driven by a motor, not shown. The drive element 1 has a flange 2, which is circular in form in the illustration. The inner face of flange 2 engages a rubber ring 3 which may have either flat or rounded shoulders. Rubber ring 3 is illustrated as having flat shoulders in the present instance.

The other side or surface of rubber ring 3 is bonded to surface 4 of a flange 5, which is mounted to, or is integral with, the output shaft 6 connected to the mass to be accelerated and driven at a constant velocity. Flange 5 has a back surface which is bonded to another rubber ring 7, whose opposite side is bonded to a flange 8 as shown.

In operation, as the mass to be accelerated builds up speed, rubber rings 3 and 7 in the coupling are subjected to high dynamic torques. Any oscillations which are present are damped by the action of the rubber rings being placed in torsional shea...