Drive for a pilger cold-rolling mill with balancing of masses an

Details Drive for a pilger cold-rolling mill with balancing of masses an Drive for a pilger cold-rolling mill with balancing of masses an

1988-02-23

1989-08-22

Spruill, Robert L.

Metal deforming

By use of roller or roller-like tool-element

Comprising tool movable relative to stationary work-portion...

72249, B21B 2100

Patent

active

048584584

ABSTRACT:
A drive for a pilger cold-rolling mill with mass and torque balancing, where the driven crank, rotating around a vertical axis, is connected via a coupler with a roller frame guided horizontally in a guide and where the coupler assumes, with its total mass, the balancing of momentum and where the crank, with its total mass, assumes the mass balancing. An additional mass M.sub.z, which is movable synchronously and parallel to the roller frame and where the center of gravity (S.sub.M) is lower than the virtual engagement point (S.sub.AG) of the centrifugal force of the crank balancing mass (MA), where the product of the force of inertia for accelerating the mass (M.sub.z) and of the vertical distance (b) between the center of gravity (S.sub.M) and of the mass (M.sub.z) and the engagement point (S.sub.AG) of the centrifugal force of the mass (MA) corresponds to the balancing mass moment obtained as a product of the force of inertia engaging at the center of gravity (S.sub.AG) at the roller frame and its vertical distance (a) to the point of engagement (S.sub.AG) of the centrifugal force for improving conventional drives such that the mass moment or moment of inertia is balanced.

REFERENCES:
patent: 2924106 (1960-02-01), Bohm et al.
patent: 3335593 (1967-08-01), Zeunert
patent: 3584489 (1971-06-01), Peytavin
patent: 3890821 (1975-06-01), Gerretz et al.
patent: 4052898 (1977-10-01), Miller et al.
patent: 4386512 (1983-06-01), Rehag et al.

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