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US 10,507,502 B2Granted
Forming machine, particularly ring-rolling machine
AssigneeSMS group GmbH
InventorRalf Bolik
Life of this patent
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Abstract
A forming machine, particularly a ring-rolling machine, which includes a hydraulically regulated linear axle, which is driven by way of an electro-hydrostatic actuator, can work precisely while having a simple mechanical-engineering structure. The machine may have at least one further hydraulically regulated linear axle, which is driven by way of an electro-hydrostatic actuator or by way of a drive other than an electro-hydrostatic actuator.
Claims7
A forming machine comprising:
- (a) a radial roll stand carrying radial rolling rollers;
- (b) a radially displaceable mandrel lifting apparatus disposed on said radial roll stand being radially displaceable with respect to said radial roll stand by way of a drawing frame;
- (c) an axial roll stand carrying axial rolling rollers;
- (d) at least one hydraulically regulated linear axle regulated via an electro-hydrostatic actuator;
- (e) a control electrically coupled to said electro-hydrostatic actuator;
- (f) an electro-hydrostatic direct drive comprising a housing and hydraulics disposed within said housing, said electro-hydrostatic drive comprising the electro-hydrostatic actuator, wherein the at least one hydraulically regulated linear axle is coupled to the electro-hydrostatic actuator, and the electro-hydrostatic actuator controls a movement of the at least one hydraulically regulated linear axle;
- and
- (g) a hydraulic oil tank coupled to the electro-hydrostatic actuator.
5 more elements
Dependencies are inferred from the claim text.