US 11,986,871 B2
Cross-rolling unit and method for adjusting a roll gap
Walter Kirchner, Moenchengladbach (DE)
Assigned to SMS group GmbH, Duesseldorf (DE)
Filed by SMS group GmbH, Duesseldorf (DE)
Filed on Aug. 9, 2022, as Appl. No. 17/883,795.
Claims priority of application No. 10 2021 120 784.3 (DE), filed on Aug. 10, 2021; and application No. 10 2021 130 840.2 (DE), filed on Nov. 24, 2021.
Prior Publication US 2023/0047972 A1, Feb. 16, 2023
Int. Cl. B21B 37/62 (2006.01); B21B 1/16 (2006.01); B21B 1/22 (2006.01); B21B 13/00 (2006.01); B21B 13/10 (2006.01); B21B 31/00 (2006.01); B21B 31/32 (2006.01)
CPC B21B 37/62 (2013.01) [B21B 13/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A cross-rolling unit for adjusting rolls operating under load comprising:
(a) a force-absorbing roll stand;
(b) a subassembly disposed on the force-absorbing roll stand comprising a mechanical setting unit for a first cross-roll setting and a hydraulic setting unit for a second cross-roll setting;
wherein the mechanical setting unit comprises mutually displaceable first and second mechanical subassemblies having a common axis of symmetry;
wherein the first mechanical subassembly is a spindle;
wherein cross-rolling unit further comprises at least one of a rotary drive and an electric drive configured to turn the spindle;
wherein the hydraulic setting unit comprises mutually displaceable first and second hydraulic subassemblies having a first central axis and a second central axis, respectively;
wherein the axis of symmetry and the first and second central axes are identical; and
wherein a force acting on one of the rolls operating under load acts first on the hydraulic setting unit, then acts on the rotary drive or the electric drive, and thereafter acts on the roll stand.
 
12. A cross-rolling unit for adjusting rolls operating under load comprising:
(c) a force-absorbing roll stand;
(d) a subassembly disposed on the force-absorbing roll stand comprising a mechanical setting unit for a first cross-roll setting and a hydraulic setting unit for a second cross-roll setting;
wherein the mechanical setting unit comprises mutually displaceable first and second mechanical subassemblies having a common axis of symmetry;
wherein the first mechanical subassembly is a spindle;
wherein the hydraulic setting unit comprises mutually displaceable first and second hydraulic subassemblies having a first central axis and a second central axis, respectively;
wherein the axis of symmetry and the first and second central axes are identical; and
wherein the spindle is joined via a spindle thread directly with a piston of the second hydraulic subassembly.