WO2010022717A2 - Joint à rotule et procédé de fabrication - Google Patents

Joint à rotule et procédé de fabrication Download PDF

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Publication number
WO2010022717A2
WO2010022717A2 PCT/DE2009/050040 DE2009050040W WO2010022717A2 WO 2010022717 A2 WO2010022717 A2 WO 2010022717A2 DE 2009050040 W DE2009050040 W DE 2009050040W WO 2010022717 A2 WO2010022717 A2 WO 2010022717A2
Authority
WO
WIPO (PCT)
Prior art keywords
ball
ball joint
housing
joint
plastic
Prior art date
Application number
PCT/DE2009/050040
Other languages
German (de)
English (en)
Other versions
WO2010022717A3 (fr
Inventor
Axel Blöcker
Klaus Pape
Hans Prins
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2010022717A2 publication Critical patent/WO2010022717A2/fr
Publication of WO2010022717A3 publication Critical patent/WO2010022717A3/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
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0628—Construction or details of the socket member with linings
    • F16C11/0633—Construction or details of the socket member with linings the linings being made of plastics
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/24—Brasses; Bushes; Linings with different areas of the sliding surface consisting of different materials

Definitions

  • the invention relates to a ball joint and a method for its production.
  • Ball joints are used in a variety of forms, whenever it comes to having to enable a pivoting movement together with a rotary motion.
  • the middle ring in comparison to the other parts of the spherical shell has a lower so-called Shore hardness.
  • the other parts of the ball socket in the unloaded state of the ball joint abut only selectively or linearly on the ball, so that there are favorable conditions with respect to a breakaway torque.
  • An object of the present invention starting from the above-outlined prior art is to provide a ball joint that ensures a comparatively small design sufficient wear resistance of the mutually engaged in a movement of the ball joint parts.
  • a ball joint of the type mentioned ie a ball joint with a housing, a housing movably mounted in a recess therein ball and a ball connected to the ball pin, arranged in the recess, multi-part ball socket, with at least a first part made of a plastic and at least one other, arranged in a highly loaded area of the ball joint, the second part of a higher wear-resistant material compared to the plastic of the or each first part.
  • the above object is also achieved by a method having the features of the independent method claim.
  • a method for producing a ball joint of the type just described that is with housing, recess, ball and ball stud, provided that at least one made of plastic first part and at least one of a higher wear compared to the plastic of the or each first part Material manufactured second part is to be arranged in the recess and the ball receiving ball socket is formed, wherein the second part is arranged in a highly loaded area of the ball joint.
  • the invention is based on the recognition that currently in ball joints as the material of the spherical shells mainly POM (polyoxymethylene) for Use comes.
  • POM polyoxymethylene
  • POM tends to form a "flowable" plasticization at high operating rates, while high closure forces attempt to create a sufficient state of stress in the ball joint to prevent flow, but with the disadvantage that, in order to accommodate the steadily increasing stresses, the
  • larger ball diameters mean greater installation space and increased weight, and larger ball diameters and the high stress state of the ball joints result in undesirably large breakaway and movement torques ,
  • the advantage of the invention is that in a highly loaded area of the spherical shell it is partially replaced by a hard and wear-resistant part or supplemented by such a part.
  • a spherical shell with such a part With a spherical shell with such a part, a significant increase in the possible surface pressure can be achieved.
  • the remaining sections of the ball shell can continue to come proven materials, ie in particular POM or other suitable plastics used.
  • the ball sizes and thus space and weight of the ball joints can be kept small while reducing the moment.
  • the second part is preferably associated with an equatorial region of the ball.
  • the second part is preferably associated with a pole region of the ball.
  • the second part is preferably made of sintered metal, sheet metal or high-strength plastic or with one of the aforementioned materials, wherein a "production with one of the aforementioned materials" means that, for example, a metal strip is part of the spherical shell by being um- or back-injected, in particular with the same plastic, from which also the surrounding first part of the ball shell is formed.
  • a metal strip is part of the spherical shell by being um- or back-injected, in particular with the same plastic, from which also the surrounding first part of the ball shell is formed.
  • a surface coating may be provided for the second part of the ball shell.
  • a suitable surface coating With a suitable surface coating, its wear resistance can be further improved without simultaneous disproportionate weight gain. According to a particularly preferred embodiment, it is provided that the surface coating results from a nitration or nitrocarburization.
  • each first part is connected to at least one second part cohesively.
  • both parts are e.g. completed by spraying the first part to the spherical shell.
  • the parts can likewise be completed by injection molding to form the spherical shell, in that both first parts are joined to the second part by means of attachment.
  • Figure 1 shows an embodiment of a ball joint according to the invention as
  • Figure 2 shows an embodiment of a ball joint according to the invention as
  • the figures all show an embodiment of a ball joint, designated in its entirety by 10 according to the invention.
  • the illustration in Figure 1 shows a ball joint 10 as a ball joint.
  • the illustration in Figure 2 shows a ball joint 10 as a radial joint and the illustration in Figure 3 shows a ball joint 10 as an axial joint.
  • Each ball joint 10 comprises, in a manner known per se, a housing 12 and a ball 16 movably mounted in the housing 12 in a recess 14 formed therein and a ball pin 18 connected to the ball 16.
  • a ball 16 partially enclosing spherical shell 20 is provided in the recess 14 .
  • This comprises several parts, namely at least a first part 22 and at least a second part 24.
  • the or each first part 22 is made of a plastic, e.g. POM, made.
  • the or each second part 24 is arranged in a highly loaded area of the ball joint 10 and made of a higher wear-resistant material than the plastic of the or each first part 22.
  • the second part 24 of the ball socket 20 is arranged in an opening region of the housing 12 as a highly loaded part of such a ball joint 10.
  • the second part 24 acts as a closure ring 26.
  • the closure ring 26 encloses an upper part of the ball 16 and a pin neck 28 of the ball stud 18 and serves as their sliding partner in this area.
  • the second part 24 a Equator area of the ball 16 as a highly loaded part of such a ball joint 10 assigned.
  • the second part 24 is connected to the or each first part 22 (only two parts 22 are shown in FIG.
  • the first part 22 which is manufactured in one piece, eg as a result of an injection process, encloses one lower part of the ball 16 and serves as a sliding partner in this area and ensures a tolerance compensation.
  • the first part 22 which is manufactured in one piece, eg as a result of an injection process, encloses one lower part of the ball 16 and serves as a sliding partner in this area and ensures a tolerance compensation.
  • the second part 24 is made to obtain a comparison with the first part 22 increased wear resistance of sintered metal, sheet metal or high-strength plastic or with one of the aforementioned materials.
  • the second part 24 is shown as a press-in ring made of sintered metal.
  • the second part 24 is an insertable ring of e.g. Sheet metal shown.
  • the second part 24 is a ring, e.g. made of a high strength plastic is shown. In all figures it is shown that the second part 24 may comprise lubrication grooves 30.
  • Surface coating (not shown) may be provided.
  • a method for a surface coating is in particular a nitration or Nitrocarbu ⁇ réelle into consideration.
  • Ball joint Housing Recess (in housing) Ball Ball pin Ball socket first part (of the ball cup) Second part (of the ball cup) Lock ring Pin neck Lubricating groove

Landscapes

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

Abstract

L'invention concerne un joint à rotule (10), comportant un boîtier (12) dans l'évidement (14) duquel une rotule (16) est logée pivotante et reliée à un pivot sphérique (18), ainsi qu'un procédé de fabrication de ce joint à rotule. Le joint à rotule (10) est caractérisé par une cuvette (20) en plusieurs parties, disposée dans l'évidement (14) et comportant une première partie (22) en plastique et au moins une deuxième partie (24) qui est disposée dans une zone hautement sollicitée du joint à rotule (10) et qui est composée d'un matériau plus résistant à l'usure comparativement au plastique de la ou de chaque première partie (22). Lors de la fabrication du joint à rotule (10), la cuvette (20) recevant la rotule (16) et devant être montée dans l'évidement est réalisée par assemblage de la ou de chaque première partie (22) avec au moins une deuxième partie (24) qui est disposée dans une zone hautement sollicitée du joint à rotule (10).
PCT/DE2009/050040 2008-08-27 2009-08-11 Joint à rotule et procédé de fabrication WO2010022717A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008041619.3 2008-08-27
DE200810041619 DE102008041619A1 (de) 2008-08-27 2008-08-27 Kugelgelenk und Verfahren zu dessen Herstellung

Publications (2)

Publication Number Publication Date
WO2010022717A2 true WO2010022717A2 (fr) 2010-03-04
WO2010022717A3 WO2010022717A3 (fr) 2010-05-14

Family

ID=41559450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/050040 WO2010022717A2 (fr) 2008-08-27 2009-08-11 Joint à rotule et procédé de fabrication

Country Status (2)

Country Link
DE (1) DE102008041619A1 (fr)
WO (1) WO2010022717A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012078A1 (fr) * 2013-10-21 2015-04-24 Peugeot Citroen Automobiles Sa Systeme d'articulation a rotule, en particulier pour suspension de roue de vehicule

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011087345B4 (de) * 2011-11-29 2021-05-06 Zf Friedrichshafen Ag Gelenk- und/ oder Lenkeranordnung
DE102021132549A1 (de) 2021-12-09 2023-06-15 Seepex Gmbh Gelenkverbindung, rotierende Einheit und Exzenterschneckenpumpe
DE102021132561A1 (de) 2021-12-09 2023-06-15 Seepex Gmbh Gelenkverbindung, rotierende Einheit und Exzenterschneckenpumpe

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711136A (en) * 1970-02-26 1973-01-16 Ehrenreich & Cie A Vehicle ball joint with crimped housing and method and apparatus for forming same
GB1525338A (en) * 1977-02-15 1978-09-20 Supra Automotive Ltd Ball joints
US4231673A (en) * 1977-12-28 1980-11-04 Oiles Industries Co., Ltd. Ball joint and a method for manufacturing the ball joint
DE3723548A1 (de) * 1986-07-16 1988-01-21 Trw Inc Lagerung fuer ein gelenk
DE10236829A1 (de) * 2002-08-10 2004-02-26 ZF Lemförder Metallwaren AG Lagerschale für ein Kugelgelenk und Verfahren zu deren Herstellung
US20060269356A1 (en) * 2005-05-31 2006-11-30 Qa1 Precision Products, Inc. Ball joint construction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708590A (en) 1950-08-15 1955-05-17 Firm A Ehrenreich & Cie Ball and socket joints
US4875794A (en) 1987-12-23 1989-10-24 Dana Corporation Preloaded steering ball joint assembly and method
DE29708162U1 (de) 1997-05-09 1997-07-17 Lemförder Metallwaren AG, 49448 Lemförde Radialkugelgelenk für Kraftfahrzeug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711136A (en) * 1970-02-26 1973-01-16 Ehrenreich & Cie A Vehicle ball joint with crimped housing and method and apparatus for forming same
GB1525338A (en) * 1977-02-15 1978-09-20 Supra Automotive Ltd Ball joints
US4231673A (en) * 1977-12-28 1980-11-04 Oiles Industries Co., Ltd. Ball joint and a method for manufacturing the ball joint
DE3723548A1 (de) * 1986-07-16 1988-01-21 Trw Inc Lagerung fuer ein gelenk
DE10236829A1 (de) * 2002-08-10 2004-02-26 ZF Lemförder Metallwaren AG Lagerschale für ein Kugelgelenk und Verfahren zu deren Herstellung
US20060269356A1 (en) * 2005-05-31 2006-11-30 Qa1 Precision Products, Inc. Ball joint construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3012078A1 (fr) * 2013-10-21 2015-04-24 Peugeot Citroen Automobiles Sa Systeme d'articulation a rotule, en particulier pour suspension de roue de vehicule

Also Published As

Publication number Publication date
WO2010022717A3 (fr) 2010-05-14
DE102008041619A1 (de) 2010-03-04

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