Patent ID: 7318346
Filing Date: 2008-01-15
Classification: G01D,G01M

Abstract:
1. A device for measuring the rotational unbalance of an article, comprising: a) a spindle unit with a spindle holder and with a spindle mounted on the spindle holder rotatably about an axis of rotation and carrying at one of its two ends a coupling for fastening the article; b) a holder suspension for fastening the spindle unit to a machine base, said holder suspension guiding the spindle holder deflectably in a predetermined measurement direction for unbalance forces; c) an electric motor driving the spindle in rotation; and d) a sensor arrangement measuring the unbalance force in the predetermined measurement direction during rotation of the spindle, wherein the spindle unit and the electric motor are combined into a first preassembled subassembly and the holder suspension and the sensor arrangement are combined into a second preassembled subassembly, and wherein the two subassemblies carry connecting elements, assigned to one another in an indexed manner, wherein the connecting elements operationally releasably fasten the subassemblies to one another.