With Means To Drive Tool Patents (Class 72/249)
-
Publication number: 20080289392Abstract: A sheet metal machining apparatus is disclosed, and the sheet metal machining apparatus includes a base, a driving device, a supporting device, a rolling device and an oscillating device. The driving device and the supporting device are set on the base. The rolling device is located on the supporting device, and has a first roller and a second roller. The oscillating device is associated with the second roller by a linear guide. Thus, the first roller and the second roller are driven by the driving device to rotate in an opposite directions wherein the second roller further reciprocates in a predetermined range through the oscillating device.Type: ApplicationFiled: September 19, 2007Publication date: November 27, 2008Inventors: Te-Chang Tsai, Jun-Yen Uan
-
Publication number: 20080264134Abstract: A roll stand with at least one pair of rolls mounted in a stand column and drive shafts, particularly cardan shafts, for the rotary drive of the rolls. A coupling for coupling the drive shafts to the rolls. Axial roll displacement is based on a drive shaft which has an actuating arrangement. Further, a method for axial roll displacement is disclosed.Type: ApplicationFiled: September 26, 2006Publication date: October 30, 2008Inventor: Rudolf Langeder
-
Patent number: 7406853Abstract: In the transverse wedge rolling machine as claimed in the invention the drive motor is a permanent magnet motor, especially a torque motor. Furthermore the rotational speed of the rollers is controlled depending on their rotary position.Type: GrantFiled: August 8, 2006Date of Patent: August 5, 2008Assignee: Langenstein and Schemann GmbHInventors: Guenter Hofmann, Stelios Katsibardis, Sigfried Hausdoerfer, Henry Zwilling, Guenther Vogler, Herbert Rueger
-
Patent number: 7363791Abstract: A rotary stamping apparatus for forming moving sheet metal and having a die assembly moveable forward and backward along a linear path, with upper and lower dies on respective sides of the sheet metal, the dies being closeable on the sheet metal for forming, and, a rotary drive crank system coupled to the die assembly, and operable to move the die assembly forward and backward along the linear pat, and being further operable to close the dies the sheet metal. Also disclosed is a method of forming moving sheet metal by such apparatus.Type: GrantFiled: August 28, 2006Date of Patent: April 29, 2008Assignee: GCG Holdings LtdInventor: Ernest R Bodnar
-
Patent number: 7337643Abstract: A rolling mill drive with at least one drive spindle arranged between a drive unit and a driven roll and terminating in a spindle head connected detachably to the neck of the roll. A coupling and decoupling device is arranged between the neck of the roll and the spindle head of the drive spindle. The coupling and decoupling device includes a coupling sleeve, a coupling pin inserted releasably into the coupling sleeve, and a locking element which is displaceable transversely to the axis of rotation of the neck of the roll. The locking element is inserted into the coupling sleeve and engages behind the coupling pin in an operating position of the locking element. The locking element is capable of being coupled to a displacing device for displacing it.Type: GrantFiled: August 31, 2004Date of Patent: March 4, 2008Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.Inventors: Johannes Weiermair, Guenter Mittermayr
-
Patent number: 7191629Abstract: A modular rolling mill comprises a plurality of separate rolling units arranged along a mill pass line. Each rolling unit includes at least two pairs of work rolls defining oval and round roll passes and carried on roll shafts that are staggered 90° with respect to each other. The rolling units contain intermediate drive trains configured to connect the roll shafts to parallel input shafts projecting to a first side of the pass line from the respective rolling units. A single driven line shaft is parallel to and on the first side of the pass line. Output shafts are mechanically coupled to the line shaft by bevel gear sets. The output shafts project laterally from the line shaft towards the pass line and are connected by separable couplings to the input shafts of the rolling units.Type: GrantFiled: April 13, 2006Date of Patent: March 20, 2007Assignee: Morgan Construction CompanyInventors: T. Michael Shore, Martyn A. Bowler
-
Patent number: 7086264Abstract: A roll stand has upper and lower rotatable working rolls defining a nip that pinches a workpiece strip and upper and lower vertically spaced rotatable backing rolls vertically flanking and engaging the working rolls. A drive includes a motor, upper and lower backing-roll outputs drivable by the motor, and upper and lower working-roll outputs also drivable by the motor. Respective upper and lower backing-roll and working-roll releasable connections are provided between the outputs and the respective rolls. When the working rolls are of large diameter, the backing-roll connections are released to disconnect the backing rolls from the drive and the working-roll connections are engaged to connect the working rolls to the drive and, when the working rolls are of small diameter, the working-roll connections are released to disconnect the working rolls from the drive and the backing-roll connections are engaged to connect the backing rolls to the drive.Type: GrantFiled: September 12, 2001Date of Patent: August 8, 2006Assignee: SMS Demag AktiengesellschaftInventors: Jurgen Seidel, Gunter Kneppe, Waldemar Wolpert
-
Patent number: 7082799Abstract: The invention concerns a drive system (1) for a rolling mill, especially for a cold pilger rolling mill with at least one roll frame (1) movable back and forth, at least one crank drive (3) which has a crank arm (4) with a counterweight (5) for at least partial compensation of the inertial forces produced by the mill frame (2), a drive (6) and a connecting rod (7) which articulates the mill frame (2) and the crank arm (4) with one another and at least one counterweight (8, 9) which is eccentrically rotatable and serves to compensate the inertial forces and/or the moments of inertia. To achieve an efficient balancing of the inertial forces with a simple construction of the drive system, the invention provides that at least one counterweight (8, 9) is rotatably driven by a separate rod (10, 11) independently from the drive (6) of the crank drive.Type: GrantFiled: September 12, 2002Date of Patent: August 1, 2006Assignee: SMS Meer GmbHInventors: Horst Stinnertz, Michael Baensch
-
Patent number: 6983635Abstract: A coin press (10) includes a die (20) and an anvil (22) that abut and counter-rotate to nip and press a coin. The coin press (10) has a timing device (80) with a coin slot (84) and a gate (92) rotatable about a gate axis parallel to the width of the coin slot (84). The gate (92) rotates between a closed position to obstruct the coin slot (84) and an open position that allows the coin to pass gravitationally by the gate (92). A timing ring (130) rotates with one of the die (20) and the anvil (22) and has at least one lobe (132) that activates a trip lever (122) to rotate the gate (92) and gravitationally drop the coin between the anvil (22) and an image on the die (20). The die (20) and the anvil (22) are removably and replaceably mounted by sliding into a slot (46) and another slot (48) on a frame (40). First and second adjusters (62, 64) allow adjustment of pressure between the die (20) and the anvil (22).Type: GrantFiled: May 7, 2004Date of Patent: January 10, 2006Inventor: Rocky Rockholt
-
Patent number: 6920774Abstract: A drive system for a multi-roll leveler. The drive system is coupled to a set of upper work rolls of the leveler. Preferably, the lower, and not the upper set of work rolls provide the bending necessary to flatten the strip of material. The drive system employs a gearbox housing one or more gear trains adapted to rotationally drive the upper set of work rolls. A drive means is coupled to the gear train(s). When more than one gear train is used, the gear trains may drive an equal or unequal number of upper work rolls. The upper work rolls may be splined to better engage the gear train. Output shafts may be provided on the gear box to connect the gear train(s) to the work rolls. The drive system does not require the use of universal joints to drive the work rolls. When the upper and lower sets of work rolls are contacted with the strip of material, the driven rotation of the upper work rolls causes the strip of material to move through the leveler.Type: GrantFiled: April 16, 2003Date of Patent: July 26, 2005Assignee: Machine Concepts, Inc.Inventors: Guil C. Bergman, Anthony D. Enneking
-
Publication number: 20030167817Abstract: The invention relates to a four- or six-high rolling stand for a rolling train and to a method for operating the same. The aim of the invention is to provide rolling stands that can adapt rapidly to rolling products of different thicknesses and/or hardnesses. To achieve this, rolling stands are provided with minimum expenditure that can be selectively operated with both thin and thick working rolls. The inventive combined drive in the four- or six-high rolling stand allows thick working rolls to be directly connected to a motor, whereas thin working rolls are merely carried along by neighbouring back-up rolls or intermediate rolls by means of friction.Type: ApplicationFiled: May 6, 2003Publication date: September 11, 2003Inventors: Jurgen Seidel, Gunter Kneppe, Waldemar Wolpert
-
Patent number: 6546776Abstract: A multi-stand block for a rolling mill comprises a plurality of roll stands alternately arranged on opposite sides of a pass line along which a product is rolled in a downstream direction from an entry end to an exit end of the block. Drive shafts are provided on opposite sides of the pass line. The drive shafts comprise coaxial segments interconnected by couplings, with each roll stand being connected to a respective one of the line shaft segments. A block drive is connected to the line shafts at the upstream end of the block, and the couplings are selectively disconnectable to mechanically isolate any downstream line shaft segments and the roll stands connected thereto from the block drive.Type: GrantFiled: July 24, 2001Date of Patent: April 15, 2003Assignee: Morgan Construction CompanyInventors: Francis J. Wesolowski, T. Michael Shore
-
Patent number: 6526795Abstract: An expanding hub assembly for a capstan drive for a steel mill comprising a modified spline having a large cylindrical surface area for mating with an installed mill roll. The cylindrical surface is interspersed with a series of evenly spaced shallow axial troughs formed therein for mating with a series of shallow projecting splines on a mounted mill roll. The hub is hollow and an expansion device is present in the hollow hub for expanding the mating surface of the hub.Type: GrantFiled: May 9, 2000Date of Patent: March 4, 2003Inventor: Mario Fabris
-
Patent number: 6505491Abstract: This invention provides a rolling mill and a rolling-mill train which are compact. Reducers to be coupled with them can be made compact. The inner surfaces of pipes to be rolled with the rolling mill and the rolling-mill train can be prevented from becoming squarish. The rolling mill comprises a plurality of rolls disposed symmetrically around the pathline of the rolling mill, an annular driving bevel gear of a large diameter for driving and rotating the rolls, an input-shaft mechanism for rotating the driving bevel gear, a plurality of transmission mechanisms disposed at regular intervals along the driving bevel gear, and a housing for holding them. The input-shaft mechanism (i) has an input shaft inserted in the housing from its outside and an input bevel gear of a small diameter mounted on the input shaft and engaging with the driving bevel gear and (ii) is disposed between two adjacent transmission mechanisms.Type: GrantFiled: February 14, 2001Date of Patent: January 14, 2003Assignees: Sumitomo Heavy Industries, Ltd., Kawasaki Steel CorporationInventors: Shigeharu Ochi, Hiroshi Fujiwara, Sho Inui, Takaaki Toyooka, Motoaki Itadani, Akira Yorifuji, Toshio Onishi, Koji Sugano, Yasuo Nishida, Nobuki Tanaka
-
Patent number: 6490902Abstract: A two-line roll stand has a frame, an upper shaft on the frame, and two lower shafts on the frame spaced horizontally from each other below the upper shaft and forming with the upper shaft an isosceles triangle. Identical drive units each have a pair of rolls and gearing connected to the respective rolls. The lower shafts each carry three drive units and the upper shaft carries at least four of the drive units. The drive units of the lower shafts define a pair of roll lines spaced below and symmetrically flanking the upper shaft. The upper-shaft drive units are aligned on the lines with the rolls of the respective lower-shaft drive units. A single motor has an output directly connected to drive gears on the shafts for synchronously rotating all the shafts and thereby rotating all the rolls via the respective bevel gears and the respective drive units.Type: GrantFiled: February 14, 2002Date of Patent: December 10, 2002Assignee: SMS Demag AktiengesellschaftInventor: Ferruccio Sclippa
-
Publication number: 20020092335Abstract: A device for driving a pair of vertical rolls or the support shafts thereof mounted in bearing chocks, wherein the necks of the vertical rolls can be coupled to drive gear shafts which are each mounted in a gear housing which is connected to and is movable together with the respective chock. The drive gear shafts are constructed as vertically mounted unilateral bevel gear shafts whose bevel gears mesh with the bevel gears of also unilateral bevel gear shafts in the form of hollow bevel gear shafts which are mounted horizontally and coaxially in the respective gear unit support housing. The hollow bevel gear shafts can be coupled to the drive unit through a floating intermediate shaft arranged between the two hollow shafts, wherein each hollow bevel gear shaft is connected through an internal spline to an external spline of the intermediate shaft.Type: ApplicationFiled: October 24, 2001Publication date: July 18, 2002Inventor: Siegmund Bulert
-
Patent number: 6405573Abstract: The present invention relates to a wire rod rolling line in which a finishing mill group rear stage is composed of a combination of a plurality of 4-roll mills. An object of the present invention is to provide a wire rod rolling line having a very high operating ratio capable of expanding a size free rolling range and at the same time capable of arranging pass schedules in which the pass schedule of an upstream pass is simplified in order to shorten a line stop time for adjusting mills. To achieve the object, the wire rod rolling line of the present invention is arranged such that three mills from the end of the finishing mill group are 4-roll mills, these three mills are installed in series with the reducing directions thereof dislocated by 45°, the two mills from the end are driven by a common motor and the third 4-roll mill from the end is separately driven.Type: GrantFiled: November 2, 2000Date of Patent: June 18, 2002Assignees: Kawasaki Steel Corporation, Sumitomo Heavy Industries, Ltd.Inventors: Ryo Takeda, Shigeharu Ochi, Takeshi Tange, Takao Ogawa
-
Patent number: 6397650Abstract: The present invention relates to a roll stand for bar and wire rod rolling mill, capable of being applied to various sizes of bars and wire rods by a small number of housing block sets, permitting maintenance work therefor to be carried out easily, and having characteristics in the housing thereof. The roll stand for bar and wire rod rolling mill according to the present invention is characterized in that the housing is divided into two, i.e. a roll block and a driving block by a plane including a position in which a driving gear and a driven gear are meshed with each other or a position in the vicinity of this position, whereby the number of housing block sets to be prepared is reduced. This enables the housing manufacturing cost to be lowered, and the replacement of a roll to be carried out efficiently.Type: GrantFiled: December 18, 2000Date of Patent: June 4, 2002Assignees: Kawasaki Steel Corporation, Sumitomo Heavy Industries, Ltd.Inventors: Tomoyasu Sakurai, Takao Ogawa, Ryo Takeda, Yoshihiro Shinkai, Shigeharu Ochi, Takeshi Tange
-
Patent number: 6349585Abstract: A method and an arrangement for operating a rotating starting shear operating in a start-stop operation on rolling stock travelling at different speeds in wire mills, light-section mills, medium plate mills and billet mills, wherein the shear, whose gear system is connected through a coupling to a drive motor, is accelerated from the position of rest to approximately rolling speed and, after the cut has been carried out, is stopped again. A gear machine is arranged between the gear unit of the shear and the drive motor, wherein torsion-proof couplings are arranged between the gear unit or the shear and the gear mechanism and between the gear mechanism and the drive motor.Type: GrantFiled: October 12, 2000Date of Patent: February 26, 2002Assignee: SMS Schloemann-Siemag AktiengesellschaftInventors: Günter Grenz, Klaus Küppers, Otmar Palzer
-
Publication number: 20010005999Abstract: A power transmission member (20) is provided by a spline rolling method and apparatus (36) that includes a pair of racks (38) for providing splines (24) with ends (34) opposing each other in a precisely spaced relationship at an annular groove (30) that is utilized to provide snap ring or other fastener positioning for axially locating the member during use.Type: ApplicationFiled: March 1, 2001Publication date: July 5, 2001Applicant: Utica Enterprises, Inc.Inventor: James Thomas Killop
-
Patent number: 6233996Abstract: A drive system for industrial plant sections, in particular for system sections in the basic industries, having at least one electric motor and at least one converter with a voltage link, through which the electric motor is connected to an AC-voltage power supply network, the converter regulating the power consumption or torque and rotation speed of the electric motor from the AC-voltage power supply network.Type: GrantFiled: October 22, 1999Date of Patent: May 22, 2001Assignee: Siemens AktiengesellschaftInventors: Rolf-Dieter Klug, Theodor Salzmann
-
Patent number: 6216520Abstract: A rolling mill comprising a roll unit and a drive unit for driving the roll unit. The drive unit comprises an outer housing, a pair of large-diameter ring-like driving bevel gears disposed concentric with the pass line, an input shaft mechanism for rotating the driving bevel gears, and transmission mechanisms for transmitting the torque of the driving bevel bears to the rolls. Each transmission mechanism comprises a small-diameter transmission bevel gear caught between and engaging with the driving bevel gears and first and second transmission shafts for transmitting the torque of the transmission bevel gear to a roll. The drive and roll units are coupled and uncoupled by couplings. Four positioning parts are formed on the outer periphery of the inner housing of the roll unit. The outer housing of the drive unit is generally in the shape of a ring, and four positioning parts are formed on the inner periphery of the outer housing.Type: GrantFiled: August 18, 1999Date of Patent: April 17, 2001Assignees: Kawasaki Steel Corporation, Sumitomo Heavy Industries, LTDInventors: Shigeharu Ochi, Hiroshi Fujiwara, Sho Inui, Takaaki Toyooka, Motoaki Itadani, Akira Yorifuji, Toshio Onishi, Koji Sugano, Mikio Kodaka, Nobuki Tanaka
-
Patent number: 6199476Abstract: A roll machine is provided. A plurality of rolls are disposed in a stack to define a plurality of nips therebetween adapted to treat a material web. At least two of the plurality of rolls are driven rolls. A drive control commonly controls the driven rolls. The drive control varies a driving torque distribution of the driven rolls over time. A method for operating the above roll machine is also provided, where the method includes changing a driving torque distribution of said driven rolls.Type: GrantFiled: April 5, 1999Date of Patent: March 13, 2001Assignee: Voith Sulzer Papiertechnik Patent GmbHInventor: Franz Kayser
-
Patent number: 6189352Abstract: A driving arrangement for rolling stands of a rolling mill, is described. The driving arrangement includes a control system which prescribes desired values for the rolling stands via control units, the rolling stands having at least one electric motor which is supplied with electric energy by a power supply system via at least one converter having turn-off power semiconductors. The converter has an air-cooled design. The cooling power is dimensioned such that the temperature of the turn-off power semiconductors does not exceed a critical temperature limit for continuous operation. The converter includes heat sinks which have an optimum design. At least some of the heat sinks are connected thermally in parallel.Type: GrantFiled: February 4, 1999Date of Patent: February 20, 2001Assignee: Siemens AktiengesellschaftInventors: Theodor Salzmann, Johann Wokusch, Rolf-Dieter Klug
-
Patent number: 6138886Abstract: A device in a wire rolling mill includes a pair of grooved rolls. Each grooved roll is fixedly attached to the free end of a rotatably supported spindle. Each grooved roll is positionable relative to the other so that they between themselves define a rolling gap of adjustable size. At least one of the spindles is arranged integrally with the output shaft of an electro motor. The electro motor drives the spindle directly thereby avoiding heavy and space-requiring transmissions.Type: GrantFiled: September 18, 1998Date of Patent: October 31, 2000Assignee: Aktiebolaget SKFInventors: Hans Kjellberg, Anders Lindskog
-
Patent number: 6128934Abstract: A method and apparatus that provides a multiple-stand stretch reduction mill. A single master controller monitors and controls the roll speed at each roll stand in the mill, automatically and simultaneously maintaining each stand's roll speed at a pre-determined, calculated roll speed.Type: GrantFiled: June 16, 1999Date of Patent: October 10, 2000Assignee: Lone Star Technologies, Inc.Inventor: David W. Houghton
-
Patent number: 6109085Abstract: The forming apparatus including: at least one forming roller; a roller shaft, on which the forming roller is attached; a pair of mutually spaced apart bearing stands, on each of which the roller shaft is rotatably and axially supported; a first coupling arranged on the roller shaft to serve as an axial positioning of the forming roller; and a second coupling releasably coupled to the first coupling, the roller shaft being divided into a first shaft (8A) rotatably and axially supported on one of the pair of bearing stands and a second shaft rotatably and axially supported on the other of the pair of bearing stands, both the first coupling and the forming roller being removably attached on the divided end of the first shaft, the second coupling being fixedly attached onto a divided end of the second shaft, and the second shaft being further slidably supported on the other of the pair of bearing stands by a slide stroke by which a spatial interval from the divided end of the second shaft to the divided end of thType: GrantFiled: October 8, 1999Date of Patent: August 29, 2000Assignee: Calsonic CorporationInventors: Daisuke Kikuchi, Kazuhiro Watanabe
-
Patent number: 6062058Abstract: A roll stand with two rolls forming a gap has each roll connected to a separate drive motor by a drive train having a spindle with a toothed coupling to the drive roll. One of the drive trains includes two components connected to each other by a flexible coupling permitting a large angular shaft displacement with one of the components connected by a second flexible coupling to the drive motor and the other drive train includes the drive spindle being formed by a single component coupled to the drive shaft of the motor by a toothed coupling.Type: GrantFiled: October 24, 1997Date of Patent: May 16, 2000Assignee: Voest-Alpine Industrieanlagenbau GmbHInventor: Rudolf Buchegger
-
Patent number: 6053022Abstract: In a modular rolling mill gear units are installed between selected rolling units in place of other rolling units which haven removed from the mill pass line to thereby provide a gap in the rolling sequence. Each gear unit is coupled to the drive units previously coupled to the respective removed rolling unit, and is configured to provide a continuation of the mill drive train end to accommodate operation of the next subsequent rolling unit at the speed of the respective removed rolling unit. The gear units carry water boxes or other equivalent cooling devices which serve to lower the temperature of the product between successive roll passes.Type: GrantFiled: September 14, 1998Date of Patent: April 25, 2000Assignee: Morgan Construction CompanyInventor: T. Michael Shore
-
Patent number: 6033310Abstract: A variable length light weight drive shaft for a rolling mill roll including: a driven first end including a universal joint connecting with an end of a male splined shaft having an axial bore and counter bore and a driving second end including a universal joint connecting with a torque tube and a female spline shaft which engages over the male splined shaft for axial movement. A gas cylinder is mounted in the counter bore adjacent to the second end of the male splined shaft. A cylinder rod extends from the cylinder and is connected to with the universal joint at the driving end. The piston rod includes a self aligning coupler. The gas cylinder and cylinder rod exert continuous outward pressure against the driven and driving ends which maintains them in pressure contact with the driving and driven members while allowing axial movement of the drive shaft.Type: GrantFiled: April 20, 1998Date of Patent: March 7, 2000Assignee: The Cline CompanyInventor: Michael E. Faulkenberry
-
Patent number: 6029492Abstract: A fine steel or wire train with a multiple-stand roughing train, a multiple-stand intermediate train and a finishing block composed of six or eight or ten roll stands with a common drive, wherein at least the two last roll stands of the finishing block are each provided with an individual drive unit and the drive shafts of the last two roll stands which can be uncoupled intersect the principal drive shafts of the coupled stands.Type: GrantFiled: March 6, 1999Date of Patent: February 29, 2000Assignee: SMS Schloemann-Siemag AktiengesellschaftInventors: Hubert Muller, Rudiger Grimmel, Karl Keller, Klaus Hoffmann
-
Patent number: 5979207Abstract: A rolling mill drive with gear-type joint spindles arranged between driveable rolls and the gear units of the driveable rolls and equipped with a device for circulatory or pressure lubrication of the gear units. Each spindle has a grooved oil supply ring connectable to an oil supply, wherein oil can be supplied through a central duct of the spindle shaft to the gear-type joints, and with a stationary housing surrounding the spindle shaft at a distance and serving for the oil discharge, and with an oil delivery pump connectable on the pressure side to the oil supply rings and interacting with an oil cooler. Each gear-type joint spindle is surrounded by a pipe at a radial distance so as to form an annular oil return duct. The pipe is open at the end facing the gear unit and protrudes into the oil collection housing provided at this location for effecting oil discharge.Type: GrantFiled: March 16, 1998Date of Patent: November 9, 1999Assignee: SMS Schloemann-Siemag AktiengesellschaftInventors: Karl-Heinz Seidl, Helmut Kuhn
-
Patent number: 5953948Abstract: In a wire rolling apparatus, a pair of first wall portions of a roll housing support the rotating shaft of a backup roll, and a second wall portion connects the pair of first wall portions to each other. Even if a large force is applied to the rotating shaft of the backup roll not only perpendicular to the wire feed direction but also opposite to it, the pair of first wall portions do not distort easily. Accordingly, the degree of abutment of the backup roll against the outer circumferential surface of the work roll is not easily altered, and a stable desired pressure can be obtained, so that a wire can be rolled with high precision.Type: GrantFiled: August 11, 1998Date of Patent: September 21, 1999Assignee: Plant Engineering Yoshida Kinen Co., Ltd.Inventor: Iwao Isozaki
-
Patent number: 5934130Abstract: A rolling mill drive apparatus for driving any rolls of a pair of work rolls, 2 to 4 intermediate rolls and 2 to 4 backup rolls comprises a drive roller without tooth, rotated by an electric motor, at least one driven roller without tooth, contacting with the drive roller, a load imparting device for imparting a contact load between the drive roller and the driven roller to rotate the driven roller with frictional force caused by the contact load, and a spindle connected to at least the driven roller of the drive roller and the driven roller and transmitting rotation of the driven roller to the rolls. A rolling mill uses the rolling mill drive apparatus. A rolling method is for rolling using the rolling mill.Type: GrantFiled: July 2, 1997Date of Patent: August 10, 1999Assignee: Hitachi Ltd.Inventors: Toshiyuki Kajiwara, Hidetoshi Nishi, Yasutsugu Yoshimura, Mitsuo Nihei, Toyotsugu Masuda, Kenji Yamamoto
-
Patent number: 5921152Abstract: Successive roll stands in a rolling mill are driven at selectively different drive speed ratios by a transmission system having a pair of drive shafts and a least one idler shaft journalled for rotation about parallel axes. First and second gear trains each include intermeshed drive gears freely rotatable on the drive shafts, and a pair of idler gears on the idler shaft; each being in meshed engagement with at least one of the drive gears of each drive train. Clutches operated to selectively couple the drive gears of the first and second drive trains with their respective drive shafts.Type: GrantFiled: February 3, 1998Date of Patent: July 13, 1999Assignee: Morgan Construction CompanyInventor: Jifeng Wang
-
Patent number: 5860310Abstract: A mill train comprising: at least one roll stand for rolling rolling stock; at least one AC motor operatively coupled to the roll stand to drive same; and a controller for controlling the motor, wherein the motor speed is adjustable between a minimum speed (n.sub.min) and a maximum speed (n.sub.max); wherein the ratio of the maximum speed (n.sub.max) to the minimum speed (n.sub.min) lies within the range 2.0 and 8.0; and wherein the motor has a power output between the minimum speed (n.sub.min) and the maximum speed (n.sub.max) that deviates from the continuous output of the motor at the minimum speed.Type: GrantFiled: February 25, 1997Date of Patent: January 19, 1999Assignee: Siemens AktiengesellschaftInventor: Johann Thomas Wokusch
-
Patent number: 5848544Abstract: 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.Type: GrantFiled: December 17, 1996Date of Patent: December 15, 1998Assignee: Innse Innocenti Engineering Santeustacchio S.p.A.Inventors: Roberto Brioschi, Maurizio Brignoli, Stefano Bandini
-
Patent number: 5816144Abstract: A precision roll stand includes a roll housing absorbing the rolling forces. In the roll housing rolls constituting a roll pair with their roll chocks are mounted so as to be rotatable and mutually adjustable by an adjustment device which changes the axial distance between the pair of rolls. A drive housing including a roll drive is connectable with the roll housing while establishing a drive connection of the roll drive with the rolls and being removable from the same while undoing the drive connection. In order to produce rolled products exhibiting extremely high measuring accuracies and to be able to exchange the rolls quickly and without difficulty, the roll housing has a frame which is open in the direction of adjustment of the rolls and contains and guides the chocks of the rolls. A crosshead for closing the frame carries the adjustment device designed as a pressure medium cylinder and is rigidly connectable with the frame. The drive housing is supported on the crosshead.Type: GrantFiled: September 27, 1996Date of Patent: October 6, 1998Assignee: Voest-Alpine Industrieanlagenbau GmbHInventors: Ernst Schandl, Ernst Pokorny
-
Patent number: 5778718Abstract: A process for rolling tubes, in which two grooved rolls mounted opposite one another in a roll stand are moved back and forth, i.e., reciprocated, on tube-shaped rolling material, which is arranged on a tapered rolling mandrel supported in the axial direction by a mandrel bar. The rotary-driven rolls have, on their circumferential surfaces, narrowing work grooves matching in shape to the tapered rolling mandrel, which roll down the rolling material on the rolling mandrel. At the ends of the work passes the rolls release the rolling material at the two dead centers of the roll stand path so as to assist in the advancement and rotation of the rolling material. According to the invention, the tube-shaped rolling material and the rolling mandrel are driven asynchronously in the same rotational direction at different rotational speeds.Type: GrantFiled: May 8, 1997Date of Patent: July 14, 1998Assignee: Mannesmann AktiegesellschaftInventors: Horst Stinnertz, Michael Baensch
-
Patent number: 5761945Abstract: The apparatus comprises a pair of rotatable devices each holding a plurality of metal shaping and/or cutting rollers, the rollers of one device meshing with rollers of the other device to produce specific designs or widths of material. This is made possible by merely selecting suitable rollers of both sets and when production of a specific metallic section of desired widths are terminated, other rollers are selected by rotating the rotatable devices. When suitable rollers have been selected they are locked in operating position and when another design or widths are required, the devices are unlocked, a selection is made, and the devices are again locked to produce the new metallic section or widths of material. The present quick automated tool changer, i.e.Type: GrantFiled: April 18, 1996Date of Patent: June 9, 1998Inventor: Jack-Eric Vandenbroucke
-
Patent number: 5735154Abstract: A method of controlling the passage of rolling stock through a continuous mill train of successive roll stands comprising rolling shafts supporting the rolls, a rolling-mill drive preceding the rolling shafts, and individual electric motor drives having a steplessly variable rotary speed connected to the rolling-mill drive to apply torque to the rolling shafts, which comprises the steps of (a) measuring a reaction force on a machine part of a respective one of the stands to obtain a physical parameter changing in dependence on the torque before and after an initial pass of a stand succeeding the one stand, and (b) controlling the rotational speed of the individual electric motor drive for the succeeding one stand in dependence on any change of the measured physical parameter.Type: GrantFiled: June 26, 1996Date of Patent: April 7, 1998Assignee: GFM GmbHInventor: Otto Hein
-
Patent number: 5682785Abstract: A roll mill and method for rolling wires or rolling stock having a round cross-section and made from high grade steel or other alloyed steel in a high production-light section/wire mill is disclosed. By the invention, the tightest wire tolerances to roll the rolling stock in a temper roll block of the roll mill with a distinctly lower pass reduction compared to the reduction passes performed in the finishing roll block of the wire mill is achieved. The wire mill comprises a break-down train comprising respectively several roll stands or roll units, at least one intermediate train with adjoining or subsequent finishing train, wherein the finishing train is, in particular, configured as the finishing roll block. A temper roll block, comprising at least two stands is disposed downstream of the finishing roll block, and a cooling path 13 and/or a temperature compensation device 14 is, if needed, disposed between the finishing roll block and the temper roll block.Type: GrantFiled: May 29, 1996Date of Patent: November 4, 1997Assignee: SMS Schloemann-SiemagInventors: Hubert Muller, Karl Keller, Paul Josef Mauk
-
Patent number: 5649441Abstract: A roll-pair has synchronously driven shafts and a drive arrangement. The drive arrangement comprises an alternating current motor (12) and a planetary gear mechanism (13). The alternating current motor (12) and the planetary gear mechanism (13) are disposed in side-by-side relationship, the alternating current motor (12) having an output shaft and the planetary gear mechanism (13) having an input shaft. A transmission (14) connects the output shaft and the input shaft. The roll-pair and alternating current motor (12) and planetary gear mechanism (13) are all disposed on the same side of the transmission (14). The transmission (14) is a gear transmission. The input and output shafts are parallel to each other.Type: GrantFiled: September 12, 1995Date of Patent: July 22, 1997Assignee: Morgardshammar ABInventors: Borje Granholm, Folke Leksen, Lennart Danielsson, Lars Tingvall
-
Patent number: 5632177Abstract: In a system and method for manufacturing thin plate by hot-working, a splicing machine for continuously splicing the front edge of a following plate and the rear edge of a precedent plate is provided in the process precedent to a set of rolling mill stands having non-driven small diameter working rollers. By continuously splicing the plates, most portions of the rolled plates can be rolled under a steady state rolling condition, that is, an after-engaged rolling condition, and the thickness reducing amount of the plates in most portions of the rolled material is substantially increased, which substantially improves the rolling efficiency. Thereby, the diameter of the working rollers can be decreased smaller than the diameter of working roller used in a conventional rolling mill, rolling mill strands can be made small, and it can be realized to attain a small-scale system for manufacturing thin plate by hot working.Type: GrantFiled: March 20, 1995Date of Patent: May 27, 1997Assignee: Hitachi, Ltd.Inventors: Kenjiro Narita, Ken-ichi Yasuda, Yukio Hirama, Kouji Satou, Ken-ichi Yoshimoto, Tadashi Nishino, Shinichi Kaga, Yasutsugu Yoshimura
-
Patent number: 5611233Abstract: Transmission unit for driving two parallel shafts, at least one shaft being movable at right angles to its lengthwise direction, for example for a rolling mill (1). In this case each shaft (8, 11) is provided with a crown wheel (14, 15) which meshes with a cylindrical pinion (16), each pinion having a shaft (17) of which the axis intersects or crosses the axis of the shaft belonging to the crown wheel at right angles, and the rotations of the pinions being interconnected with a fixed transmission ratio. The cylindrical pinions can be fitted on one common shaft which can lie in the plane through the axes of the two shafts or at a fixed distance parallel to said plane, independent of the movement of one of the shafts or both shafts. Two pinions can be combined to form one pinion.Type: GrantFiled: December 15, 1994Date of Patent: March 18, 1997Assignee: Crown Gear, B.V.Inventor: Augustinus F. H. Basstein
-
Patent number: 5595083Abstract: A modular rolling mill has a plurality of rolling units arranged in succession on a mill pass line, each rolling unit having multiple pairs of mechanically interconnected work rolls. A plurality of gear reduction units is arranged in succession alongside the mill pass line, each gear reduction unit being driven by a drive motor. Couplings detachably connect at least some of the rolling units to two successive gear reduction units, with the remainder of the rolling units being connected to single gear reduction units.Type: GrantFiled: August 1, 1994Date of Patent: January 21, 1997Assignee: Morgan Construction CompanyInventor: Terence M. Shore
-
Patent number: 5577405Abstract: A single strand block-type rolling mill has pairs of oppositely inclined work rolls arranged successively along a mill pass line to roll rod and bar products in a twist-free manner. A planar base structure extends in parallel relationship beneath the mill pass line. A plurality of housings are arranged seriatim along the mill pass line. The housings are secured to the base structure and have mutually overlapping portions secured to one another. Each housing includes intermediate drive components for driving a pair of roll shafts carrying one of the work roll pairs, with the intermediate drive components being mechanically coupled to each other and to a common mill drive.Type: GrantFiled: December 28, 1995Date of Patent: November 26, 1996Assignee: Morgan Construction CompanyInventors: Terence M. Shore, Harold E. Woodrow
-
Patent number: 5540076Abstract: A cold pilger rolling mill which has a roll stand that can be moved back and forth, a pair of cranks each having a crankpin, a pair of thrust rods that connect the roll stand to the crankpins, and centrifugal counterweights connected to the cranks so as to be eccentric to the rotational axis of the crank to at least partially balance inertial mass. The centrifugal weights are staggered by 180 degrees to the connection point of the respective thrust rod and crank and each crank and its associated counterweights forms a submechanism. The submechanisms are arranged in a mirror image around a vertical plane which intersects a roll axis. A common drive is provided for driving the roll stand. The drive includes a drive shaft that connects the submechanisms to one another and is located beneath a rolling plane. The submechanisms have rotational axes that run horizontally parallel to one another, and the drive turns the cranks in opposite directions.Type: GrantFiled: October 20, 1994Date of Patent: July 30, 1996Assignee: Mannesmann AktiengesellschaftInventors: Michael Baensch, Ralf Bonsels
-
Patent number: 5524469Abstract: The invention focuses on improvements to cantilevered roughing, intermediate and finishing rolling mill stands, primarily for long products. A basic improvement to 2-high and cluster mill stands includes mounting of the rolling bearings upon a stationary cantilevered arbor directly under the roll ring, eliminating heavily-loaded main reaction bearings within the stand housing in limited radial space. Individual drive motor assemblies for each shaft, rigidly coupled and directly supported by the drive shafts, are also advocated, in preference to floor-mounted drives via pinion stands to spindles and couplings. This eliminates drive reaction forces acting against the stand assembly, allowing direct measurement and control of interstand tension/compression, for which appropriate hardware is outlined. A cluster mill assembly features work roll cartridge assemblies adapted for off-line set-up and ultra-fast roll and guide changes, which is particularly adapted to intermediate and finishing pass applications.Type: GrantFiled: November 8, 1993Date of Patent: June 11, 1996Inventor: William L. Sherwood
-
Patent number: 5421183Abstract: A light-section wire mill includes a breaking-down train with a plurality of roll stands, at least one intermediate mill, and a finishing block arranged downstream of the intermediate mill for rolling a single-wire or a multi-wire rolling stock having a circular cross-section and made of a high-grade steel. A temper pass block with at least two roll stand units is arranged downstream of the finishing block. The wire mill further includes a cooling and temperature equalizing apparatus located between the finishing block and the temper pass block.Type: GrantFiled: August 31, 1994Date of Patent: June 6, 1995Assignees: SMS Schloemann-Siemag AG, Saarstahl AGInventors: Karl Keller, Paul J. Mauk, Otto Reichrath