Rolling mill screwdown
AssigneeSchloemann-Siemag Aktiengesellschaft
InventorsWilhelm Fuhrmann, Andrew J. Sofranko
Life of this patent
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Abstract
A screwdown is replaceably inserted in the window of a rolling mill housing between a bearing chock and a surface defining the window of the housing. The screwdown which is provided for each of the pair of rolling mill housings includes a screwdown housing carrying a nut member which receives a screw which is locked against rotation by a lock plate supported by the screwdown housing. Gear teeth are formed on the outer cylindrical surface of the nut and these teeth mesh with the teeth of a worm gear on a shaft which is supported by the screwdown housing for rotation. The shaft of one screwdown housing is coupled to a torque shaft which extends through and supported by the other screwdown housing. The shafts are releasably locked together for synchronous or independent rotation.
Claims18
A rolling mill including spaced-apart mill housings each having a window to receive and support a bearing chock on one of the ends of each of at least a pair of rolls for processing workpieces, the combination therewith of:
- screwdown housing means extending within the windows of the mill housings for independent support between the bearing chocks of one roll and the mill housings,
- nut members carried by the screwdown housing means,
- a pair of screws each threadedly engaged with one of said nut members,
- means carried by the screwdown housing means for producing relative rotation between the screws and nut members,
- locking means supported by the screwdown housing means for linear constrained displacement of the pair of screws relative to the nut members by relative rotation therebetween, and
- fastening means for releasably attaching the screwdown housing means on the mill housings within the windows thereof independently of said bearing chocks such that the nut members and the screws extend between the chocks of one roll and the mill housings for adjustably positioning one roll relative to the other roll.
Dependencies are inferred from the claim text.