WO2006087072A1 - Pivot pour articulation a rotule et procede de production associe - Google Patents

Pivot pour articulation a rotule et procede de production associe Download PDF

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Publication number
WO2006087072A1
WO2006087072A1 PCT/EP2006/000562 EP2006000562W WO2006087072A1 WO 2006087072 A1 WO2006087072 A1 WO 2006087072A1 EP 2006000562 W EP2006000562 W EP 2006000562W WO 2006087072 A1 WO2006087072 A1 WO 2006087072A1
Authority
WO
WIPO (PCT)
Prior art keywords
pivot pin
coating
ball
pin
ball joint
Prior art date
Application number
PCT/EP2006/000562
Other languages
German (de)
English (en)
Inventor
Peter Bernhardt
Damien Jeudy
Pascal Harlay
Original Assignee
Trw Automotive Gmbh
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 Trw Automotive Gmbh filed Critical Trw Automotive Gmbh
Publication of WO2006087072A1 publication Critical patent/WO2006087072A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0604—Construction of the male part

Definitions

  • the invention relates to a pivot pin for a ball joint and a method for producing such.
  • Ball joints usually include several components that partially slide together supported by lubricants. This is especially true for a ball portion of a pivot pin which is slidably mounted in a joint housing of the ball joint. If the corresponding components are not protected against corrosion, Fe 2 O 3 particles, for example, which form due to corrosion, can penetrate into the surrounding lubricant and form a kind of abrasive paste. This can significantly reduce the life of the joint.
  • an anti-corrosion coating is one way to protect the corrosion-prone components. For reasons of reducing wear and lower Gelenkreib values, however, has been dispensed with such a coating for the ball section of a pivot pin so far.
  • the method for producing a pivot pin was therefore relatively expensive. After the machining of the journal portion, it has been most favorable in terms of manufacture to subsequently coat the entire pivot pin. Then the ball section had to be freed again from the coating in a further machining step. This process is complicated, thereby relatively expensive and creates only a partial corrosion protection for the pivot pin.
  • the object of the present invention is therefore to improve the corrosion protection of a pivot pin and a simplified and cost-effective method for its production.
  • a pivot pin is provided for a ball joint, with a pin section and a ball section, wherein the entire joint has a coating which is smoothed at least in the region of the ball portion by rolling or rolling.
  • the invention comprises a method for producing such a pivot pin, which comprises the following steps: The entire hinge pin is first machined to a predetermined extent and then completely coated. Finally, the pivot surface is rolled or rolled at least in the region of the ball portion.
  • the ball joint exhibits signs of wear and joint friction values that lie in the area of a ball joint with an uncoated ball section. Furthermore, eliminates a second machining step, since the coating of the pivot pin is maintained in the region of the ball portion and thus the entire Gelenlczapfen is surface protected.
  • the coating of the pivot pin is preferably corrosion resistant. This ensures a good life of the ball joint with good sliding properties.
  • the coating of the pivot pin may be a galvanic coating.
  • Galvanic coatings represent a cost-effective and widespread possibility of applying a thin and uniformly distributed coating to a component.
  • the coating of the pivot pin preferably consists of zinc or a zinc alloy. Galvanization by means of an immersion bath or a galvanic coating is already today a common type of surface coating and can also be used in a pivot pin according to the invention.
  • FIG. 1 shows the side view with two detail sections of a collar joint spigot
  • FIG. 2 shows the side view of a shaft-pivot pin
  • FIG. 3 shows the side view of a hollow pivot pin
  • FIG. 4 is a side view of a cylinder pivot pin
  • FIG. 5 is the side view of a cone-pivot pin
  • FIG. 6 schematically shows the manufacturing method according to the invention for a coated pivot pin.
  • FIG. 1 shows a coated pivot pin 8 for a ball joint, with a pin portion 10 and a ball portion 12, wherein the entire pivot pin 8 has a coating 14 which is smoothed at least in the region of the ball portion 12 by rolling or rolling.
  • the transition region between the pin portion 10 and the ball portion 12 is referred to as neck 16, and the pin portion 10 is divided into a collar 18 and a thread 20.
  • the coating 14 is applied, for example, by immersion or as a galvanic coating on the entire surface of the pivot pin 8.
  • the pivot surface is smoothed at least in the region of the spherical section.
  • the smoothing can be performed by suitable rolling or rolling and takes place at least in the region of the ball portion 12, but may also include the neck 16 of the pivot pin 8.
  • the coating 14 is designated 14 'in the smoothed areas. The subsequent rolling of the surface smoothes the surface so that both the material wear and the friction between the ball portion 12 of the pivot pin 8 and the joint housing (not shown) are reduced.
  • the values for wear and friction are in the end in the range of the values of a core material 21 of the pivot pin 8, usually steel.
  • the coating 14 is metallic and corrosion resistant, for example of zinc or a zinc alloy, so that the ball portion
  • the smoothing of the surface has been optimized so that the disadvantages of a coated ball portion 12 such as friction and wear increase occurring so far have been substantially eliminated.
  • Figures 2 to 5 show further embodiments of pivot pin 8 in the side view.
  • the manufacturing process and the features of these hinge pin embodiments correspond largely to the above description of the first embodiment of Figure 1.
  • the main difference lies in the design of the pin portion 10.
  • Figure 2 shows a shaft pivot pin, wherein the pin portion 10 is a cylindrical shaft 22 and a thread 20 has.
  • FIG. 3 shows a hollow pivot pin which has a neck 16 and a collar 24 on exactly opposite sides of the ball section 12.
  • the pivot pin 8 may have an axial bore 25 in this embodiment, which is indicated by dashed lines in Figure 3.
  • FIG. 4 shows a cylinder pivot pin in which the ball section
  • Figure 5 shows a cone-pivot pin, in which in the axial direction of the ball portion 12 of the neck 16 and then followed by a cone-shaped shaft 28.
  • the shaft 28 tapers to a thread 20, which closes the pin portion 10.
  • FIG. 6 schematically illustrates the sequence of the production method of a coated pivot pin 8.
  • the pivot pin blank is brought to a predetermined dimension with a cutting tool 30.
  • a coating 14 of a metal M is applied either in an immersion bath or in a galvanization process.
  • the pivot surface is rolled or rolled, for example with a roller 32 at least in the region of the ball portion 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

L'invention concerne un pivot (8) pour une articulation à rotule, comprenant une partie pivot (10) et une partie rotule (12). Le pivot (8) entier est doté d'un revêtement (14) qui est poli dans la partie de la rotule (12) par tonnelage ou laminage. L'invention concerne, de plus, un procédé pour produire un pivot (8) pour une articulation à rotule, comprenant les étapes suivantes : usinage de la totalité du pivot (8) selon une forme prédéterminée, revêtement de la totalité du pivot (8), puis tonnelage ou laminage de la surface du pivot au moins dans la partie rotule (12).
PCT/EP2006/000562 2005-02-15 2006-01-23 Pivot pour articulation a rotule et procede de production associe WO2006087072A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510006885 DE102005006885A1 (de) 2005-02-15 2005-02-15 Gelenkzapfen für ein Kugelgelenk und Verfahren zum Herstellen eines solchen
DE102005006885.5 2005-02-15

Publications (1)

Publication Number Publication Date
WO2006087072A1 true WO2006087072A1 (fr) 2006-08-24

Family

ID=36572138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/000562 WO2006087072A1 (fr) 2005-02-15 2006-01-23 Pivot pour articulation a rotule et procede de production associe

Country Status (2)

Country Link
DE (1) DE102005006885A1 (fr)
WO (1) WO2006087072A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009012622U1 (de) * 2009-09-18 2011-02-10 Hqm Sachsenring Gmbh Kugelgelenk
DE102011106818A1 (de) 2011-07-07 2012-03-08 Daimler Ag Kugelgelenkzapfen mit Schmiernuten, Herstellungsverfahren und Kraftfahrzeug-Achsgelenk
CN104948572A (zh) * 2015-06-17 2015-09-30 哈尔滨工业大学 关节球轴承及其加工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1707497U (de) * 1955-04-04 1955-09-22 Ehrenreich & Cie A Gelenkbolzen mit kugelkopf fuer kugelgelenke.
US3202749A (en) * 1956-11-01 1965-08-24 Charles S White Method for manufacturing bearings
DE4108219A1 (de) * 1991-03-14 1992-09-17 Lemfoerder Metallwaren Ag Lagerschale aus kunststoff fuer kugelgelenke in kraftfahrzeugen und arbeitsverfahren zur herstellung eines kugelgelenks mit einer solchen lagerschale
DE10206499A1 (de) * 2002-02-16 2003-08-28 Bayerische Motoren Werke Ag Gelenk-Kugelzapfen und Herstellverfahren hierfür
EP1528271A1 (fr) * 1999-02-23 2005-05-04 MacLEAN-FOGG COMPANY Parties constitutives d'une articulation à rotule, et méthode de fabrication

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251783B4 (de) * 2002-11-05 2004-12-16 ZF Lemförder Metallwaren AG Kugelzapfen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1707497U (de) * 1955-04-04 1955-09-22 Ehrenreich & Cie A Gelenkbolzen mit kugelkopf fuer kugelgelenke.
US3202749A (en) * 1956-11-01 1965-08-24 Charles S White Method for manufacturing bearings
DE4108219A1 (de) * 1991-03-14 1992-09-17 Lemfoerder Metallwaren Ag Lagerschale aus kunststoff fuer kugelgelenke in kraftfahrzeugen und arbeitsverfahren zur herstellung eines kugelgelenks mit einer solchen lagerschale
EP1528271A1 (fr) * 1999-02-23 2005-05-04 MacLEAN-FOGG COMPANY Parties constitutives d'une articulation à rotule, et méthode de fabrication
DE10206499A1 (de) * 2002-02-16 2003-08-28 Bayerische Motoren Werke Ag Gelenk-Kugelzapfen und Herstellverfahren hierfür

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009012622U1 (de) * 2009-09-18 2011-02-10 Hqm Sachsenring Gmbh Kugelgelenk
DE102010037586A1 (de) 2009-09-18 2011-03-24 Hqm Sachsenring Gmbh Kugelgelenk und Verfahren zu dessen Herstellung
DE102010037586B4 (de) * 2009-09-18 2020-11-19 HQM SCHERDEL GmbH Kugelgelenk und Verfahren zu dessen Herstellung
DE102011106818A1 (de) 2011-07-07 2012-03-08 Daimler Ag Kugelgelenkzapfen mit Schmiernuten, Herstellungsverfahren und Kraftfahrzeug-Achsgelenk
CN104948572A (zh) * 2015-06-17 2015-09-30 哈尔滨工业大学 关节球轴承及其加工方法

Also Published As

Publication number Publication date
DE102005006885A1 (de) 2006-11-23

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