US 5,848,544 AGranted

Apparatus for a balanced adjustment of the roll position in stands with two working rolls for longitudinal rolling mills

AssigneeInnse Innocenti Engineering Santeustacchio S.p.A.

InventorsRoberto Brioschi, Maurizio Brignoli, Stefano Bandini

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Abstract

An apparatus is described for adjusting the position of rolls (9) in stands with two working rolls for longitudinal rolling mills, in particular for rolling seamless tubes, with hydraulic capsule directly connected to the chock (8) of each roll bearing, wherein said capsule comprises a movable piston (2) and stationary parts (1, 3). At one end of said piston (2) there is provided a shaped axial element (12) for the engagement into a corresponding undercut groove (18) of said chock (8) to balance the own weights and take up the end plays along the capsule axis. Such an apparatus is preferably associated with a device for detecting the relative position between piston (2) and stationary parts (1, 3) by means of a transducer (7) in an out-of-center position with respect to the axis.

Claims7

Dependent claims

An apparatus for use in longitudinal rolling mills with stands having two working rolls, for adjusting the position of the rolls by utilizing a hydraulic capsule directly coupled to a chock, each chock supporting a bearing of each roll, said capsule comprising:

a mobile piston having a longitudinal axis;
stationary parts;
and
a tie rod, slidably mounted to and passing through the longitudinal axis of said piston, wherein at an end of said tie rod there is fixedly mounted an axial member for engagement in a corresponding undercut groove of said chock to balance the rolls and the weight of the chock and to take up chock and piston end play along the piston longitudinal axis, said tie rod extending out of the capsule through a stationary portion of the stationary parts of the capsule by passing through a co-axial guide sleeve integral with the piston, said stationary portion being located on an opposite side of the hydraulic capsule with respect to said axial engagement member.

1 more element

Dependencies are inferred from the claim text.