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AssigneeMannesmann Aktiengesellschaft
InventorsJosef Gerretz, Michael Baensch, Klaus Rehag
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A method and apparatus for torque equalization on the drive of a rolling stand, having a linear oscillatory movement driven via a crank drive, of a Pilger step-by-step rolling mill, particularly a cold Pilger rolling mill. In order to avoid the inefficient and/or expensive drive and to create a torque equalization system which avoids generator operation of the motor of the drive device of the mill and therefore torques acting in the direction of rotation of the motor on the motor, the variation of speed of rotation of the crank drive, determined mathematically from the kinematic parameters of the system, the masses moved and the external loads, is imparted to the crank drive as a desired variation of speed of rotation.
A method of equalizing the torque on a crank drive of a roll stand having a crank shaft operating under an external load, having reciprocating components moved linearly back and forth by the action of the crank drive of a Pilger rolling mill, the components having kinematic parameters and masses, comprising the steps of:
A Pilger rolling mill, comprising:
Dependencies are inferred from the claim text.