公开(公告)号：US11365099B2

公开(公告)日：2022-06-21

申请号：US16886296

申请日：2020-05-28

申请人： Liebherr-Components Biberach GmbH

发明人： Norbert Hausladen ,  Hubertus Rütten

IPC分类号： B66D1/30 ,  B21H1/06 ,  B21H3/04

摘要： The present invention relates to rope drums for winding and unwinding ropes, having a drum shell, to which end disks are fastened at the end faces, and to rope winches having such rope drums. The invention also relates to a method for producing such a rope drum. According to the invention, the drum shell is seamlessly rolled from an annular workpiece blank by means of a rope groove profile embossed in a non-cutting manner.

公开(公告)号：US20220126355A1

公开(公告)日：2022-04-28

申请号：US17558882

申请日：2021-12-22

申请人： Xi'an Space Engine Company Limited

发明人： Kai WANG ,  Youqiang LIU ,  Peng ZHANG ,  Jinwu MIAO ,  Zhimin CHEN ,  Yang XIE ,  Xiaoming WU

IPC分类号： B21H1/06 ,  B21J1/04 ,  B21J5/02 ,  C22F1/18

摘要： A method for forging a niobium-tungsten alloy forged ring, including: (S1) subjecting an alloy ingot to turning, chamfering, spraying with an anti-oxidation coating, stainless-steel sheathing, heating and upsetting to obtain a primary pancake with a flat-die hammer, rapid-forging press or hydraulic press; (S2) subjecting an inner pole to wire electrical discharge machining to obtain a ring blank followed by machining to remove the stainless-steel sheath and oxide scale and defects; and subjecting the ring blank to fluorescent/dye penetrant inspection followed by vacuum stress-relief annealing; (S3) subjecting the ring blank to core shaft/saddle forging on the flat-die hammer or rapid-forging press to obtain a crude forged ring; and (S4) subjecting the crude forged ring to vacuum recrystallization annealing to obtain a desired forged ring.

公开(公告)号：US11135642B2

公开(公告)日：2021-10-05

申请号：US15779760

申请日：2016-12-01

申请人： HITACHI METALS, LTD.

发明人： Takuya Murai ,  Takanori Matsui ,  Yuji Ishiwari ,  Tomoyoshi Kiwake

IPC分类号： B21H1/06 ,  B21B5/00 ,  B21B27/10 ,  B21H1/22

摘要： A method for manufacturing a ring-rolled product, which manufactures the ring-rolled product from a ring material, includes a step of rolling the ring material, which has an operation of rolling the ring material from both inner and outer circumferential sides thereof between a mandrel roll and a main roll in a state of rotating the ring material toward one side in a circumferential direction thereof, and induction-heating the ring material by induction heating elements. An induction heating element is disposed on only an outer circumferential side of the ring material or is disposed on each of both the inner and outer circumferential sides in a region immediately before the rolling, or an inclined portion is provided in an outer-peripheral edge portion of a coil in the induction heating element.

公开(公告)号：US10926310B2

公开(公告)日：2021-02-23

申请号：US16130243

申请日：2018-09-13

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Mitsue Koga ,  Tomohiko Nishiyama

IPC分类号： B21B45/02 ,  B08B3/12 ,  C21D1/72 ,  C21D1/74 ,  C23C8/24 ,  B21H1/06 ,  B21D53/14 ,  F16G5/16 ,  C21D9/40 ,  C21D1/06 ,  C21D8/10

摘要： Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.

公开(公告)号：US20190201969A1

公开(公告)日：2019-07-04

申请号：US16297189

申请日：2019-03-08

申请人： SMS group GmbH

发明人： Felix RODERMUND-GEBHART ,  Dirk KALKHOFF

IPC分类号： B21H1/12 ,  B21H1/06

CPC分类号： B21H1/12 ,  B21H1/06

摘要： In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.

公开(公告)号：US10286443B2

公开(公告)日：2019-05-14

申请号：US15084009

申请日：2016-03-29

申请人： HITACHI METALS, LTD.

发明人： Naoyuki Iwasa ,  Tsuyoshi Fukui

IPC分类号： B21H1/06

摘要： A ring rolling mill includes: a rotary drive main roll and a mandrel roll, which are for reducing the thickness of and rolling a ring-shaped material from the radial direction; a pair of rotary drive axial rolls for reducing the thickness of and rolling the ring-shaped material from the axial direction; a measuring roll for measuring the diameter of the ring-shaped material during rolling; and a speed control unit for controlling the speed of the axial rolls. The speed control unit is configured to repeat measuring the diameter at predetermined time intervals Δt and comparing a measurement value Lt of the diameter at time t and a measurement value Lt+Δt of the diameter at time t+Δt, and the speed control unit is further configured to maintain the speed of the axial rolls unchanged upon the result of the comparison being Lt+Δt

公开(公告)号：US10189074B2

公开(公告)日：2019-01-29

申请号：US15547749

申请日：2016-03-04

申请人： Cambridge Enterprise Limited

发明人： Julian Allwood ,  Christopher Cleaver

IPC分类号： B21H1/06 ,  B21B5/00

摘要： A ring rolling process and corresponding apparatus are disclosed. A ring shaped workpiece is provided, the ring shaped workpiece having a principal axis, an inner radial surface, an outer radial surface, a first axial surface and a second axial surface. The workpiece is subjected to radial pressure between a forming roll 150a acting on the outer radial surface and a mandrel roll 152a, 152b acting on the inner radial surface, at a radial roll bite region. A first axial roll 154a and a second axial roll 156a are provided at the first axial surface and the second axial surface respectively, to subject the workpiece to axial pressure. The first and second axial rolls 154a, 156a are provided at an angular position, measured around the workpiece and with respect to the principal axis, within ±10° of said radial roll bite region. Multiple circumferential constraint rolls are provided around the outer radial surface or inner radial surface. In order to control the cross sectional shape of the workpiece, the mandrel roll 152a, 152b and/or the forming roll 150a has a projecting portion for contact with the workpiece, the projecting portion having an axial extent which is smaller than the axial height of the workpiece, the mandrel roll and/or forming roll being axially moveable relative to the workpiece.

公开(公告)号：US10065234B2

公开(公告)日：2018-09-04

申请号：US14683226

申请日：2015-04-10

申请人： SMS group GmbH

发明人： Ralf Bolik

IPC分类号： B21H1/06 ,  B21C51/00 ,  B21J9/20 ,  G01B11/25 ,  B21D5/00 ,  B21D22/00 ,  B21B5/00

摘要： A forming machine, particularly a ring-rolling machine, which includes a light section sensor, which is directed at a workpiece disposed in a work region of the forming machine, can work precisely while having a simple mechanical-engineering structure. The light section sensor may be directed at a forming region in which the working tool acts in forming manner.

公开(公告)号：US20170043389A1

公开(公告)日：2017-02-16

申请号：US15305848

申请日：2015-04-07

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Yoshihide IMAMURA ,  Yuto SAKANE ,  Kohei MIKAMI ,  Yoshiro KABE ,  Hayato IWASAKI ,  Hiroshi KITANO

IPC分类号： B21H1/06 ,  B21H1/00

CPC分类号： B21H1/06 ,  B21D22/14 ,  B21D37/16 ,  B21H1/00 ,  B21H1/04 ,  H05B6/101

摘要： A method of manufacturing a preliminary formed body includes an ironing step and a thickening step. In the ironing step, a predetermined range of a plate is formed into a tapered shape in such a manner that while rotating the plate, a transform target portion of the plate is locally heated by induction heating, and a processing tool is pressed against the transform target portion. In the thickening step, a peripheral portion that is a distal end of the tapered shape of the plate is expanded inward in such a manner that while rotating the plate, the peripheral portion is locally heated, and a forming roller is pressed against the peripheral portion to push the peripheral portion in a direction orthogonal to a thickness direction of the peripheral portion.

摘要翻译： 一种初步成形体的制造方法包括熨烫步骤和增稠步骤。 在熨烫步骤中，板的预定范围形成为锥形形状，使得在转动板时，通过感应加热局部地加热板的变形目标部分，并且加工工具被压在转换 目标部分。 在增稠步骤中，作为板的锥形形状的远端的周边部分向内侧扩张，使得在旋转板的同时周边部分被局部加热，并且成形辊被压靠在周边部分上 沿周向部分的厚度方向正交的方向推动周边部分。

公开(公告)号：US06978546B2

公开(公告)日：2005-12-27

申请号：US10428077

申请日：2003-05-02

申请人： Göran Andersson ,  Lars Werner ,  Elido Schena

发明人： Göran Andersson ,  Lars Werner ,  Elido Schena

IPC分类号： F16C33/64 ,  B21H1/06 ,  B21H1/12 ,  B21D53/10

CPC分类号： B21H1/12 ,  B21H1/06 ,  F16C33/64 ,  Y10T29/49679 ,  Y10T29/49689

摘要： A method for producing ring members, such as rings for rolling bearings, through use of a rolling operation involves warming a ring blank, positioning the warmed ring blank over a mandrel which is rotatable about a first axis, and positioning a forming roll rotatable about a second axis aligned with the first axis so as to form a rolling gap with the mandrel, with a portion of the ring blank being positioned in the rolling gap. The forming roll is driven to rotate in one rotary direction while the mandrel is driven to rotate in a rotary direction opposed to the rotary direction of the forming roll. During rotation of the forming roll and the mandrel, the mandrel is urged towards the forming roll to reduce the size of the rolling gap and thereby reduce the thickness of the ring blank while also increasing its diameter.

摘要翻译： 通过使用滚动操作来制造诸如用于滚动轴承的环的环件的方法包括加热环坯，将加热的环坯料定位在可围绕第一轴线旋转的心轴上，并将成形辊定位成围绕 第二轴与第一轴对准，以便与心轴形成滚动间隙，其中一部分环坯位于滚动间隙中。 成形辊被驱动以在一个旋转方向上旋转，同时心轴被驱动以与成形辊的旋转方向相反的旋转方向旋转。 在成形辊和心轴的旋转期间，心轴被推向成形辊以减小滚动间隙的尺寸，从而减小环坯的厚度，同时也增加其直径。