Telescopic drive spindle assembly
AssigneeDavy McKee (Sheffield) Limited
InventorsBela I. Bathory, Robert W. Gronbech, Michael Lister
Life of this patent
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Abstract
A telescopic drive spindle assembly for a rolling mill permits the assembly to accommodate axial displacement of the roll. The assembly has first and second overlapping members with a piston in one member being displaceable in a cylinder in the other member. The piston defines a chamber and a quantity of gas in the chamber serves to urge the piston in the direction out of the cylinder so as to increase the effective length of the drive spindle.
Claims4
A telescopic drive spindle assembly for a rolling mill roll comprising a first member adapted for connection to drive means for rotating the roll and having an elongate cylindrical portion;
- a second member adapted for connection to one end of the mill roll and having an elongate cylindrical portion;
- said cylindrical portions being in telescopic overlapping relation and in angular driving relation with each other;
- one of the members having a piston which is located in a cylinder defined by the other member;
- said piston being displaced in the direction into the cylinder as the overlap between the cylindrical portions is increased;
- said piston defining a chamber which is in communication with the cylinder and including a compressible gas in the chamber which serves to urge the piston in the direction out of the cylinder;
- and including means for introduction of said gas into and withdrawal of said gas from said chamber.
Dependencies are inferred from the claim text.