Sms Siemag Aktiengesellschaft

Sms Group Gmbh

Sms Demag Ag

Achenbach Buschh&uuml;tten Gmbh

Kurt Scheffe

Karl Keller

Michael Breuer

Matthias Kipping

Olaf Norman Jepsen

Konrad Roeingh

Johannes Alken

Axel Barten

Achim Klein

Jürgen Merz

Heinz-Adolf Müller

Jochen Münker

Jörn Sohler

Rüdiger Grimmel

Joachim Ohlert

Heinz L&ouml;cker

Martin Falk

Ingmar Roth

A device for transmitting a torque from a drive device () onto a roller in a roll stand. In order to make the device independent from the continuous external supply of lubricant, the lubricant spaces in the two pivot bearings are connected to one another in a fluidically conductive manner by way of a feed channel and a return channel for the lubricant in the region of the spindle such that a closed circuit for the lubricant is formed, and that the least one pump device is integrated in the circuit in order to maintain the circulation of the lubricant in the circuit.

Device for transmitting a torque from a drive device onto a roller in a roll stand

An installation piece for supporting a roller in a roller stand of a roller frame. The installation piece includes a main bore for receiving a journal of the roller, an inlet for a lubricant, an outlet for the lubricant, and a pump device for pumping the lubricant leaving the installation piece through the outlet. The pump device has a housing, an inlet channel, and an outlet channel. The inlet channel communicates with the inlet and the outlet channel communicates with the outlet for the flow of the lubricant. The pump device is driven by the flow of the lubricant in the inlet. The housing of the pump device is equipped with a screw pump and a turbine, which is driven by the pressurized inflowing lubricant, in the inlet channel for driving the screw pump.

Installation piece for supporting a roller in a roller stand

The invention relates to a roll arrangement for use in metallurgical technology, comprising a roll that has a roll barrel and two roll necks, and at least one neck bushing for accommodating at least one of the roll necks in a rotationally fixed manner. A carrier element that functions as a form-locking rotationally fixed connection is arranged between the roll neck and the neck bushing. In order to increase the load-bearing capacity of the roll bearing without increasing the size of or the mounting space for the roll bearing and at the same time ensure easy assembly, the roll neck is mounted in the neck bushing with some radial play such that a circumferential cavity is formed between the neck bushing and the roll neck in the unloaded stated as a result of the radial play. In order to increase the size of the cavity, the roll neck or the inner surface of the neck bushing additionally has a concave contour or profile.

Roll arrangement

A bearing arrangement for a roll of a rolling mill stand includes a bearing for supporting a roll neck, a hydraulic device for securing the bearing on the roll neck and having a hydraulic piston supported against the roll neck, and a hydraulic cylinder displaceable relative to the hydraulic piston, the hydraulic piston having an outer thread on which a circular nut having a circular base body is screwable for supporting the hydraulic cylinder with respect to the hydraulic piston, with the nut having a circular projection extending coaxially with the circular base body and completely attached to the circular base body.

Bearing arrangement for a roll of a rolling mill stand

A bearing for a rolling mill roll that has a roll neck, the bearing including a neck sleeve fitted onto the roll neck, a chock, a bearing bush supported in the chock, and a load-bearing lubricating film provided between the neck sleeve and the bearing bush. The roll neck has a step at a transition to an undercut region that defines part of a keyway groove in an axial end face of the roll neck, a remaining part of the keyway groove being formed in an axial end of the neck sleeve. A feather key is provided in the keyway groove. The feather key and the keyway groove are arranged adjacent to, without passing through, a R&#xf6;tscher line extending between the step of the roll neck and an outer axial edge of the bearing bush. The feather key has a radial extension that is greater than an axial extension.

Bearing for rolling mill roll

A device for dismounting the neck bush (), the bearing bush (), and the chock () from the conically constructed region of the roll neck () of a roll (), where a pressure shoulder ring (), which is supported on the end face of the neck bush (), is installed on a roll neck shoulder () of the roll (), is to be improved in such a way that it can be built very short and that it can carry out the dismounting movement with very small pressures of a pressure medium. To this end, it is proposed that a gap () be provided between the pressure shoulder ring () and the end face () of the roll neck (), that the pressure shoulder ring () be coupled with the neck bush (), and that at least one pressure medium for removing the neck bush () and the chock () be provided in the gap ().

Pulling-off device

The invention relates to a device () for sealing the ball side of a bearing of a roller journal (), comprising a journal bushing () which is drawn to the roller journal (), said journal bushing being associated with a bearing ring (), a bearing bushing () which is mounted in an insertion piece (), also comprising radial shaft seals which are associated with the insertion piece via a holder () and which are provided with radial lips () which co-operate with the bearing ring () and a sealing arrangement () which is arranged upstream from the radial shaft seals so that the roller () can roll. The aim of the invention is to improve said device in such a way that it can be produced and operated economically such that it consists of only a small number of parts and has an improved sealing effect. According to the invention, the holder (), the radial lips (), and a sealing lip (') of the sealing arrangement () form one unit which is sealingly connected in a detachable manner to the insertion piece ().

Device for sealing the ball side of a bearing of a roller stud

Disclosed is a device for influencing in a controlled manner the load-bearing force of supporting rollers (SW) that rest on working rollers. The neck (WZ) of said supporting rollers (SW) which is provided with an extension (ZA) is mounted in roller bearings or sliding bearings that are disposed in a bearing-supporting housing of the rollers of a roller stand. The neck extension (ZA) is mounted in a supporting bearing. The outside of the housing (LG) of said supporting bearing is connected to the bearing-supporting housing. An intermediate housing (ZG) which is inserted in the housing (LG) of the supporting bearing cylindrically encloses the supporting bearing, is impinged upon by a piston cylinder unit (RB, SK), and can be displaced within said housing (LG) in a radial direction relative to the axis of the neck extension (ZA).

Device for influencing in a controlled manner the load pressure of pressure rollers

A cooling and lubricating device for rollers of a cold rolling mill with one or more roll stands for controlling strip tensile stress of the strip across the width by changing the effective roll barrel diameter and/or the roller lubrication with a controlled supply of rolling oil or emulsions. The supply is pressure-, quantity-, and/or temperature-controlled. Several nozzle beams are provided and assigned to individual rollers, respectively. The nozzle beams are connected to side shields of the roll housing. Spray nozzles are mounted in the nozzle beams and distributed across the entire roller width. The nozzle beams are moveable independently relative to the rollers transverse to the strip running direction and in planes parallel to the strip plane. Rotary and linear drives are connected to the nozzle beams for rotating the nozzle beams about the longitudinal axis and for moving them in the longitudinal direction.

Growing community of inventors

Hilchenbach, Germany

Kurt Scheffe