FIELD: testing of spindles of machine tools with reproduction of all force factors which act upon spindle shaft in process of blank working. SUBSTANCE: during operation of spindle, its shaft and rotor fitted on the shaft are rotated. As a result of interaction of magnetic field and rotating rotor, brake torque is developed. Control unit allows production of any law of variation of brake torque. Device is provided with measuring unit of brake torque. Weights installed in rotor holes make it possible to vary centrifugal load. EFFECT: higher efficiency. 2 dwg
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Authors
Dates
1998-02-20—Published
1996-06-11—Filed