Sms Siemag Aktiengesellschaft

Sms Group Gmbh

Sms Demag Ag

Florian Lindner

Achim Klein

Stefan Wendt

Bernd Zieser

Christian Diehl

Peter Rainer

Olaf Norman Jepsen

Jochen Münker

Maik Berger

A roller for a rolling mill with a casing, a left half pivot, and a right half pivot. The half pivots in the region surrounded by the casing are constructed as a truncated cone and form a left surface on the left half pivot and a right surface on the right half pivot. The left half pivot and the right half pivot have boreholes and corresponding grooves formed on the surfaces. The half pivots are inserted in the casing and are braced with one another by at least one tie rod. An hydraulic oil in boreholes and grooves is passed into or onto the left half pivot and the right half pivot. The hydraulic oil exerts a pressure on the casing to expand the casing. With the casing expanded, the stop surfaces and the face surfaces of the casing are pressed onto one another by the tie rod.

Multipart roller

A roll stand () with at least one upper and one lower roll () supported by respective backing rolls () mounted on a common roll frame () and in bearings that are vertically displaceable with respect to each other for setting different roll gaps, with at least one axial shifter for one of rolls () and with at least one bender comprising a bending cylinder () for bending the upper roll () is characterized in that the bender comprises horizontal traverses () and bending arms () at each ends of the upper roll (), whereby for setting the roll gap height between rolls () the roll () is guided by bending arms ().

Roll stand

The invention relates to a rolling device () comprising at least two working rolls () which are respectively mounted in a roll stand () by means of working roll assembly pieces (). At least one of the working rolls () is adjustable relative to the other working roll () within the roll stand (), especially in a vertical direction, so as to adjust a desired rolling gap. At east one working roll () is effectively connected to bending means (), with the aid of which said working roll () can be impinged upon by a bending moment. The working roll assembly piece () is provided with arms () that laterally protrude relative to the axis () of the working roll () to absorb the force generated by the bending means (). In order to improve the adjustability of the rolling device to a large ascent, a pressure-transmitting element () which can be displaced relative to the roll stand (), particularly in a vertical direction, is disposed between a pressure-generating element () of the bending means (), especially a piston, and the protruding arm () of the working roll assembly piece ().

Rolling stand

The invention concerns a drive spindle () for the main drive of a rolling stand, which has: a first shaft () for transmitting torque from a drive motor () to a coupling element, especially to a multiple spline profile, and a second shaft () for transmitting the torque from the coupling element, especially the multiple spline profile, via a swivel joint () to a roll () of the rolling stand, wherein the swivel joint () has a wobbler (), which is rotationally rigidly connected with the roll (), and a second spindle head (), which is rotationally rigidly connected with the second shaft (), and wherein the rotational connection between the wobbler () and the spindle head () is produced by sliding bearings and a journal (), which is rotationally rigidly connected with the spindle head () but is supported in a way that allows an angle of inclination (&#x3b1;) between the axis of rotation () of the roll () and the axis of rotation () of the second shaft (). In order to achieve improved transmission of axial forces by the swivel joint, the invention provides that a bearing element () for absorbing forces in the direction of the axes of the second shaft () and the roll () is arranged between the wobbler () and the spindle head (), such that a push rod () for transmitting axial forces between the wobbler () and the spindle head () is arranged between the two bearing elements ().

Drive spindle for the main drive of a roll stand

An adjusting cylinder for long, rapid lifting movements in rolling stands, including vertical edging stands, wherein each adjusting cylinder has at least one piston which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by the piston and the piston rod is smaller than the surface formed by the piston and the piston rod.

Adjusting cylinders in rolling stands, including vertical edging stands

An adjusting cylinder for long, rapid lifting movements in rolling stands, includes vertical edging stands, wherein each cylinder has at least one piston, which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by one piston and the piston rod is smaller than the surface formed by another piston and the piston rod.

The invention relates to an adjusting roll for the rapid adjustment of rolls in rolling frames, among others vertical upset forging frames, comprising at least one respective piston, which acts on both sides of a working roll to adjust the latter, by means of assembled parts of at least one working roll or an interposed support roll. The inventive adjusting roll has been improved by the provision of a piston (KO), which is equipped with two piston rods (ST, ST) that point in opposite directions and the piston or pistons (KO) are inserted into a respective cavity in the roll base (ZB) or roll cover (ZD), said base and cover comprising coaxial bores for conducting the piston rods (ST, ST).

Adjusting roll in rolling frames, among others vertical upset forging frames

Rolling device with two work rolls supported in a rolling stand by a chock and with at least two additional rolls supported in the rolling stand by an additional chock. At least one of the work rolls and at least one of the additional rolls is adjustable for adjusting a desired roll gap relative to the other work roll or relative to the other additional roll. The work rolls have axial shifting devices for axial shifting and holding the work rolls into a desired axial position relative to the rolling stand. The work rolls are operatively connected with bending devices, by which a bending moment can act on the work rolls. The axial shifting devices are arranged and act between the rolling stand and the work roll locking mechanism. The bending devices are arranged or act between the work roll chock and the chock of the additional roll.

Growing community of inventors

Netphen, Germany

Florian Lindner