EP1201364B1 - Machine de galetage de vilebrequins - Google Patents

Machine de galetage de vilebrequins Download PDF

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Publication number
EP1201364B1
EP1201364B1 EP01120063A EP01120063A EP1201364B1 EP 1201364 B1 EP1201364 B1 EP 1201364B1 EP 01120063 A EP01120063 A EP 01120063A EP 01120063 A EP01120063 A EP 01120063A EP 1201364 B1 EP1201364 B1 EP 1201364B1
Authority
EP
European Patent Office
Prior art keywords
crankshaft
rolling
deep
rollers
force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01120063A
Other languages
German (de)
English (en)
Other versions
EP1201364A1 (fr
Inventor
Alfred Dr.-Ing. Heimann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hegenscheidt MFD GmbH and Co KG
Original Assignee
Hegenscheidt MFD GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hegenscheidt MFD GmbH and Co KG filed Critical Hegenscheidt MFD GmbH and Co KG
Publication of EP1201364A1 publication Critical patent/EP1201364A1/fr
Application granted granted Critical
Publication of EP1201364B1 publication Critical patent/EP1201364B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
    • B24B39/045—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution the working tool being composed of a plurality of working rolls or balls

Definitions

  • the invention relates to a device for deep rolling of radii or punctures on main or connecting rod bearings of crankshafts with the help of fixed rollers and support rollers on the respective main or connecting rod bearing for supporting the force applied by the deep rolling rollers on the crankshaft rolling force.
  • a device for deep rolling of radii or punctures on main or connecting rod bearings of crankshafts with the help of fixed rollers and support rollers on the respective main or connecting rod bearing for supporting the force applied by the deep rolling rollers on the crankshaft rolling force.
  • Such a device is known from US 4 860 566 A.
  • crankshafts under additional external force applied in the direction of the load occurring during operation.
  • crankshafts which consist of high-strength materials
  • large rolling forces can occur that the crankshaft can no longer be rolled with the normal tools, without the fixed rollers fail after a short time.
  • the external load would permit a reduction in rolling force to produce a similar distribution of axial residual stresses as during deep rolling without external load.
  • US 4,860,566 A discloses a device for deep rolling of radii or punctures on main or connecting rod bearings of crankshafts with the aid of deep rolling rollers and support rollers.
  • the support rollers serve to support the rolling force applied by the deep rolling rollers to the crankshaft.
  • means are provided for applying an additional external load to the main bearings of the crankshaft following the deep rolling of the radii or recesses. The additional load is applied in each case only on the deep rolling rollers on the crankshaft and is therefore provided for straightening the crankshaft.
  • Another device for applying an external bending load to a smooth shaft for reducing internal stresses is finally known from RU 2 086 393 C.
  • the known device is not intended for machining crankshafts and also not to introduce additional stresses in a workpiece in order to increase the strength of the workpiece during the simultaneous action of other means, such as fixed rollers.
  • the object of the present invention to develop the known per se devices for deep rolling of radii or punctures on main or connecting rod bearings of crankshafts so that the conventional deep-rolling tools have a longer life or with the usual Deep-rolling tools with normal service life to roll down crankshafts, which consist of a high-strength material.
  • the further developed facilities should be simple in their construction, reliable in handling and also inexpensive.
  • the object is achieved by a device for applying an additional external stress in the direction of the load occurring during operation of the crankshaft during the deep rolling of the radii or recesses according to the claims 1 and 2.
  • the device consists of at least one chuck for the crankshaft, which can apply a tensile force in the longitudinal direction of the crankshaft to the crankshaft.
  • Such a device according to claim 2 consists of a chuck, a tailstock or a steady rest between which the crankshaft is clamped.
  • the chuck, the tailstock or the steady rest are designed such that they can simultaneously generate a bending stress in the crankshaft during the rotation of the crankshaft during the deep rolling process.
  • the generation of the bending stress for example, by an angular Adjustment of the aforementioned elements or a lateral offset in the radial direction of the crankshaft can be achieved.
  • a crankshaft 6 is considered, as used for example in a 4-cylinder internal combustion engine for motor vehicles.
  • the crankshaft 6 starts at a flange 7, and ends in a pin 8. Between the flange 7 and the Pins 8 are the main and connecting rod bearings of the crankshaft 6, between each of which the crank webs 9 are arranged.
  • the main bearing with the reference numerals 1, 2, 3, 4 and 5 and the connecting rod bearing with the reference numerals 1 ', 2', 3 'and 4'.
  • two chucks 10 and 11 are provided, which are able to apply a tensile force 12 in the axial direction on the crankshaft 6.
  • the crankshaft 6 is stretched during the deep rolling by the chucks 10 and 11.
  • the force 12 generates a bending moment between the main bearings 1 to 5, the connecting rod bearings 1 'to 4' and the respective adjacent crank webs 9 in the transition regions 13 and 14, where the deep rolling of radii or punctures takes place.
  • the tensile stresses arising on the transitional areas 13 and 14 under axial force 12 in the crankshaft 6 result in smaller deep rolling forces being sufficient for plastically deforming the material of the crankshaft 6 or, unchanged, leading to large plastic deformation of the material of the crankshaft 6 , This results in the surface of the transition regions 13 and 14 compressive stresses.
  • an additional load is applied to the crankshaft 6 via support rollers 15.
  • the additional load corresponds to the operating load of the crankshaft 6 in the engine (not shown).
  • the crankshaft 6 is again stretched in a chuck 10.
  • hard rollers 17 cause the deep rolling.
  • the support rollers 15 are additionally subjected to a further force 18.
  • the additional force 18 is applied by means of a cylinder 19, which can be acted on by a pressure medium.
  • the force of the cylinder 19 acts via the piston rod 20 directly on the support rollers 15, which support the rolling force from the fixed rollers 17, while these roll the transitions 16 at the connecting rod bearing 1 '.
  • FIG. 4 and 5 show the bending moments 21 and 22, with which the crankshaft 6 is loaded under the action of the lateral forces 23 and 24 in the radial direction.
  • the main bearing 3 is acted upon by the lateral force 23 via the support rollers 15 and firmly rolled on the connecting rod bearings 2 'and 3'.
  • the deep rolling forces are represented by the arrows 25; the direction of the arrow 25 indicates the effect of the deep rolling rollers 17.
  • FIG. 5 the main bearing 3 is acted upon by support rollers 47 with the lateral force 24 and the crankshaft 6 is fixedly rolled on the connecting rod bearings 1 'and 4'.
  • the solid rolling forces acting there, which are absorbed by support rollers 15, are designated by the numbers 26.
  • the additional force 24 is changed over a revolution of the crankshaft 6 so that the bending moment 22 of the just-rolled point has the desired amount and the correct sign.
  • a lateral force 27 is applied to the journal 8 of the crankshaft 6 via support rollers 48.
  • the bending moment 28, which is received by the chuck 10 arises within the crankshaft 6.
  • the bending moments 28 in the crankshaft 6 can also be generated by a further distant deep-rolling device (not shown) or via the tailstock (not shown) or via a steady rest (not shown). Again, all bearings 1 to 5 and 1 'to 4', for which the bending moment 28 in magnitude and sign of the desired size, are rolled.

Claims (2)

  1. Machine pour le galetage de rayons ou de georges des paliers (1, 2, 3, 4, 5) et des manetons (1', 2', 3', 4') de vilebrequins (6) par intermédiaire de galets de galetage (17) et de galets d'appui (15, 47, 48) posés respectivement sur les paliers (1, 2, 3, 4, 5) et les manetons (1', 2', 3', 4') ces derniers soutenant la force de galetage (25, 26) exercée par les galets de galetage (17) sur le vilebrequin (6), caractérisée par deux mandrins de serrage (10, 11) pour exercer une force de traction ou de compression (12) dans la direction axiale du vilebrequin (6) pendant le procédé de galetage des rayons et des georges (13, 14, 16).
  2. Machine pour le galetage de rayons ou de georges des paliers (1, 2, 3, 4, 5) et des manetons (1', 2', 3', 4') de vilebrequins (6) par intermédiaire de galets de galetage (17) et de galets d'appui (15, 47, 48) posés respectivement sur les paliers (1, 2, 3, 4, 5) et les manetons (1', 2', 3', 4') ces derniers soutenant la force de galetage (25, 26) exercée par les galets de galetage (17) sur le vilebrequin (6), caractérisée par un mandrin de serrage (10), une contre-poupée ou une lunette, entre lesquels le vilebrequin (6) est serré, pour exercer un moment de flexion (21, 22, 28) sur le vilebrequin (6) pendant le procédé de galetage des rayons et des georges (13, 14, 16).
EP01120063A 2000-10-25 2001-08-21 Machine de galetage de vilebrequins Expired - Lifetime EP1201364B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10052753 2000-10-25
DE10052753A DE10052753A1 (de) 2000-10-25 2000-10-25 Gerät zum Festwalzen von Kurbelwellen

Publications (2)

Publication Number Publication Date
EP1201364A1 EP1201364A1 (fr) 2002-05-02
EP1201364B1 true EP1201364B1 (fr) 2007-02-28

Family

ID=7660928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01120063A Expired - Lifetime EP1201364B1 (fr) 2000-10-25 2001-08-21 Machine de galetage de vilebrequins

Country Status (5)

Country Link
US (1) US6651474B2 (fr)
EP (1) EP1201364B1 (fr)
JP (1) JP4243446B2 (fr)
AT (1) ATE355154T1 (fr)
DE (2) DE10052753A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3912759B1 (fr) * 2020-05-18 2023-08-09 Dr. Joachim Hug Procédé d'augmentation de la résistance en fatigue d'un essieu

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1342536A1 (fr) * 2002-03-02 2003-09-10 Hegenscheidt-MFD GmbH & Co. KG Dispositif d'entraînement rotatif d'un vilebrequin
FR2863921B1 (fr) * 2003-12-18 2007-01-12 Renault Sas Outil de galetage
DE102004013257B3 (de) * 2004-03-18 2005-08-18 Hegenscheidt-Mfd Gmbh & Co. Kg Verfahren zum Erhöhen der Dauerfestigkeit von Kurbelwellen
US7188497B2 (en) * 2005-04-07 2007-03-13 International Engine Intellectual Property Company, Llc Method for straightening an eccentric shaft
ES2328862T5 (es) * 2006-06-23 2012-10-24 Muhr Und Bender Kg Mejoras de la capa marginal de resortes de disco o muelles anulares ondulados
DE102006029316A1 (de) * 2006-06-23 2007-12-27 Muhr Und Bender Kg Festwalzen von Tellerfedern oder Wellfedern
WO2010054648A1 (fr) 2008-11-12 2010-05-20 Hegenscheidt-Mfd Gmbh & Co. Kg Procédé pour augmenter la rigidité en flexion de vilebrequins
CN101885131A (zh) * 2009-05-12 2010-11-17 南车襄樊机车有限公司 曲线轴滚压机
DE102010056616A1 (de) * 2010-12-23 2012-06-28 Hegenscheidt-Mfd Gmbh & Co. Kg Verfahren zum Richtwalzen von Kurbelwellen
DE102012003476B4 (de) * 2012-02-16 2017-06-08 Hegenscheidt-Mfd Gmbh & Co. Kg Verfahren und Werkzeug zum Erhöhen der Festigkeit von tragenden zylindrischen Flächen an Kurbelwellen
RU2553124C2 (ru) * 2013-07-19 2015-06-10 Владимир Станиславович Олешко Способ упрочнения металлических деталей машин

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US3583191A (en) * 1969-02-13 1971-06-08 Cargill Detroit Corp Compressive straightener
DE3438742A1 (de) * 1984-10-23 1986-04-30 Maschinenfabrik Alfing Keßler GmbH, 7080 Aalen Verfahren zur steigerung der dauerfestigkeit von bauteilen unterschiedlicher formgebung
FR2578457B1 (fr) * 1985-03-11 1987-05-22 Unimetall Sa Machine de traction pour le dressage et la relaxation des contraintes des rails en acier
JPS62296911A (ja) * 1986-06-16 1987-12-24 Mitsubishi Heavy Ind Ltd 中央部のみ細める塑性加工法
JPS63127871A (ja) * 1986-11-17 1988-05-31 Daihatsu Motor Co Ltd クランクシヤフトの加工方法
DE3701223A1 (de) * 1987-01-17 1988-07-28 Augustin Hans Georg Verfahren und vorrichtung zum richten eines werkstuecks
EP0299111B1 (fr) * 1987-07-13 1994-06-01 Wilhelm Hegenscheidt Gesellschaft mbH Procédé et dispositif de redressage de pièces présentant des parties excentrées
RU2021098C1 (ru) * 1991-07-01 1994-10-15 Производственно-коммерческое предприятие "Теко Лтд." Способ обработки нежестких валов
RU2086393C1 (ru) * 1992-11-14 1997-08-10 Владимир Васильевич Вождаенко Способ снижения внутренних напряжений в деталях типа валов
DE4309176C2 (de) * 1993-03-22 1995-10-19 Siemens Ag Verfahren zum Festwalzen eines Bauteils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3912759B1 (fr) * 2020-05-18 2023-08-09 Dr. Joachim Hug Procédé d'augmentation de la résistance en fatigue d'un essieu

Also Published As

Publication number Publication date
EP1201364A1 (fr) 2002-05-02
JP4243446B2 (ja) 2009-03-25
DE10052753A1 (de) 2002-05-08
US6651474B2 (en) 2003-11-25
DE50112106D1 (de) 2007-04-12
US20020108417A1 (en) 2002-08-15
ATE355154T1 (de) 2006-03-15
JP2002181027A (ja) 2002-06-26

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