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WO2000011363A1 - Corps articule a deux elements - Google Patents

Corps articule a deux elements Download PDF

Info

Publication number
WO2000011363A1
WO2000011363A1 PCT/EP1999/006033 EP9906033W WO0011363A1 WO 2000011363 A1 WO2000011363 A1 WO 2000011363A1 EP 9906033 W EP9906033 W EP 9906033W WO 0011363 A1 WO0011363 A1 WO 0011363A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
shaft
joint part
bodies
ball tracks
Prior art date
Application number
PCT/EP1999/006033
Other languages
German (de)
English (en)
Inventor
Eberhard Ernst
Wolfgang Schiemenz
Original Assignee
Gkn Sinter Metals 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 Gkn Sinter Metals Gmbh filed Critical Gkn Sinter Metals Gmbh
Priority to AU55175/99A priority Critical patent/AU5517599A/en
Publication of WO2000011363A1 publication Critical patent/WO2000011363A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D3/224—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a sphere
    • F16D3/2245—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a sphere where the groove centres are offset from the joint centre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D2003/22309—Details of grooves
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly

Definitions

  • the invention relates to a method for producing a shaft joint with an outer joint part and at least one inner joint part having undercuts, recesses and / or profiles for inner ball tracks for receiving in the outer joint part.
  • Universal joints of this type are known. They are primarily used for torque transmission between shafts that are subject to major displacements during operation. The absorption of axial displacements is also possible.
  • the PTO shaft avoids these disadvantages. This consists of two joints and an intermediate shaft.
  • the intermediate shaft is usually designed as a telescopic shaft to compensate for changes in length. A condition for uniform transmission is that the two joint forks are in one
  • constant velocity joints enable a uniform, non-positive transmission of the torque or the angular velocity mostly via balls, which are guided in ball tracks so that they always lie in the mirror plane of the joint. Centering is necessary for larger constant velocity joints.
  • the constant velocity joints enable uniform transmission at large deflection angles. Constant velocity joints are built as fixed joints or sliding joints, whereby the fixed joint fixes the drive axis in the axial direction and the sliding joint enables compensation for changes in the length of the axle by longitudinal displacement.
  • Universal joints of this type are connected to the shafts with an outer joint part and an inner joint part.
  • the inner joint part is guided by balls on the outer joint part.
  • the balls move in a cover ring in ball tracks which are formed on the outer surface of the inner joint part and on the inner surface of the outer joint part.
  • the geometry of the shaft joints requires that the recesses for the ball tracks be machined. This usually requires costly, high-precision, machining.
  • the disadvantage here is that the inner joint part has to be manufactured in a large number of work steps and in different processing machines. Up to now, the inner joint part has been formed from a blank in a conventional way, since the undercuts or moldings could not be produced by the pressing process and therefore could not be pressed from metal powder and sintered to the final shape.
  • the object of the invention is to provide a method with which a shaft joint can be produced in a simple manner, in particular a synchronous shaft joint is made available which is accessible to simple pressing methods due to its geometry.
  • the inner and / or outer joint part is composed of at least two corresponding, preferably annular joint bodies.
  • the invention is based on the fact that a body with a complex geometry can be divided into one or more bodies with a simpler geometry by one or more cuts.
  • the geometry of the individual joint bodies is designed in such a way that at least two essentially identical joint bodies with easy-to-press geometry can be arranged with their respective contact surfaces in such a way that a Joint inner and / or outer joint part with corresponding complex geometry arises.
  • the joint bodies can be connected to one another by joining methods, preferably by plugging (positive locking), soldering, welding and / or sintering (material locking). It is also possible to arrange the joint bodies on the respective shaft and fasten them axially in such a way that they rest against one another without a fixed connection (positive locking) and thus form the inner joint part.
  • the joint body made of powdery material, preferably of metal powder is pressed in a pressing device. This joint body has the advantage that when connected to a corresponding counterpart by sintering, the entire body of the inner joint part forms a high-strength structure which has excellent material properties and surface quality.
  • a method is provided in which the joint bodies are pressed as a blank in a pressing device with stamps movable in the direction of the axis of the joint body.
  • a pressing device is characterized by a simple working drain off.
  • This pressing process is inexpensive and, above all, time-saving. This makes it possible to produce a large number of joint bodies or inner joint parts in a short time.
  • the invention further relates to a method according to which the joint body is produced in one or more pressing processes. This makes it possible to make changes to the molding as well as the tool between individual pressing processes in order to use individual design options.
  • a further advantage is achieved by heat treatment of the joint body or of the inner and / or outer joint part.
  • the joint bodies, inner and / or outer joint parts have appropriate strength.
  • joint body or the joint inner and / or joint outer part are post-compressed.
  • corresponding dimensional accuracies of the parts can be generated or irregularities in the manufacture can be eliminated.
  • the joint body or the inner and / or outer joint part can be produced in all conventional ways. It is provided according to the invention to press the parts out of powdery material, in particular out of metal powder. Furthermore, it is also provided that the parts are produced by forging or fine forging or by cold extrusion.
  • a shaft joint in particular a constant velocity shaft joint, with an outer joint part and an inner joint part with inner ball tracks arranged therein, which is produced by the method according to the invention.
  • the inner and / or outer joint part is composed of joint bodies.
  • the inner and / or outer joint part is designed with undercuts, recesses and profiles, preferably axially to the joint body axis aligned on the outer surface, radially curved ball tracks, the ball tracks are designed with a track base and track sides and the individual joint body has a geometry that makes it possible to press it axially and to remove it from the press mold of the pressing device.
  • the joint body according to the invention is then advantageously designed with a simple geometry that can be produced by a pressing process with a pressing direction acting axially to the joint body axis.
  • the joint bodies are joined together in a non-positive, material and / or form-fitting manner on the contact surfaces to form an inner and / or outer joint part.
  • the edges of the contact surfaces of the two joint bodies at least partially abut each other in the bottom of the ball tracks.
  • the section through the inner and / or outer joint part on the contact surfaces thus runs in such a way that the abutting edges of the respective joint bodies run in the base of the ball tracks.
  • This is advantageous when it is a question of a geometry of the ball tracks in which the ball itself does not touch the bottom of the track. This can be the case in particular in the case of polygonal cross sections of the ball tracks, but also in the case of ball tracks which are elliptical in cross section.
  • a further embodiment is advantageous in which the edges of the contact surfaces run at least partially on the track sides or the respective track base of the ball tracks. It is particularly advantageous if the running surfaces of the ball tracks and the edges do not intersect.
  • Fig. 4 is a ball track with ball in cross section.
  • the 1 shows a constant velocity universal joint 1. It has an outer joint part 2 and an inner joint part 3.
  • the outer joint part 2 is connected to a shaft 4, and the inner joint part 3 is connected to a shaft 5.
  • the shaft 4 and the shaft 5 form a drive-output system.
  • the inner joint part 3 is received in the outer joint part 2.
  • Balls 6 are arranged in ball tracks 7 between the outer joint part 2 and the inner joint part 3 so that the balls 6 are guided against each other in the ball tracks 7 when the shafts 4, 5 are bent. The balls inevitably run in the mirror plane.
  • the angle of deflection is 0 ° and the ball lies in a plane perpendicular to the straight line formed by the axes of the shafts 4 and 5.
  • the arrangement has a cover ring 8 which holds the ball in the ball tracks.
  • the output shaft is transmitted at a constant speed and torque even with appropriate deflection within the possible limits.
  • the shaft joint 1 is sealed to the outside with a flexible seal 18.
  • the inner joint part 3 each has a drive body 9, 9 'on the output and drive side.
  • both joint bodies 9, 9 ' can be designed essentially the same.
  • the two joint bodies are connected to one another by joining processes.
  • Fastening on the shaft 5 is also conceivable, for example by means of fastening means such as a fastening ring and a fastening groove, the joined joint bodies being locked on the shaft.
  • the fastening ring and fastening groove are not shown in FIG. 2.
  • the inner joint part 3 has ball tracks 7 which are assigned to one another in pairs.
  • the ball tracks 7 are aligned axially into the image plane and have a radial curvature 14.
  • the curvature 14 is opposed to each of the pair of ball tracks 7 assigned to one another, i. H. the ball tracks 7 run towards each other in an axial direction.
  • the joint body axis A runs perpendicular to the image plane through the center of the joint bodies 9, 9 '
  • the joint body 9 shows a joint body 9, 9 'in cross section along the joint body axis A.
  • the joint body 9 has the contact surface 10, which is attached to an opposite th joint body 9 'is brought into contact with the contact surface 10'.
  • 3c shows the joint body 9 individually.
  • the joint body 9 is cut so that the contact surfaces 10 lie both partially in the circumference and perpendicular to the axis of the joint body 9, i. H. is directed perpendicular to the plane of the drawing.
  • the joint body 9 has ball tracks 7 which protrude beyond the contact surface 10.
  • the ball tracks 7 are only half shown with a track side 13. In the assembled inner joint part, the ball tracks 7 are complete and each have track sides 13 and 13 '.
  • the corresponding joint body 9 ' which is not shown here, would be plugged from the top opposite to the illustrated joint body 9, so that the ball tracks 7 form an edge in the track base 12.
  • FIG. 3d shows a sequence of a top view from the side of the inner joint part 3, which is composed of the joint bodies 9, 9 '.
  • the investment areas are the investment areas
  • the two joint bodies 9, 9 'each have corresponding track sides 13, 13', which form the ball tracks 7. Between the web sides 13, 13 '12 edges 19 are visible in the web base, on which the contact surfaces 10, 10' rest.
  • Fig. 4 shows a ball track 7 with a ball 6 in cross section.
  • the ball 6 has a geometry that is circular.
  • the ball track 7 has a geometry that is elliptical.
  • the ball runs on the running surface 16, 16 'and has two contact points on the ball track at every moment. Each point of contact 17, 17 'lies on a different web side 13, 13'. Each web side 13, 13 'belongs to another joint body 9, 9'.
  • the edges are in the bottom of the web
  • the ball track 7 is designed so that the edges do not intersect the tread 16 of the ball 6, but always in Roll over distance d.
  • the contact points 17, 17 ' are separated from one another at an angle 2 ⁇ from the center of the sphere.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

L'invention concerne un procédé qui permet de fabriquer un joint homocinétique (1). Le joint comprend un élément articulé externe et au moins un élément articulé interne (3), qui présente des découpures postérieures, des évidements et/ou des profils servant de chemins de roulement internes et qui est disposé dans l'élément articulé externe. L'élément articulé interne et/ou l'élément articulé externe est constitué d'au moins deux corps articulés (9, 9') correspondants, de préférence annulaires. L'invention concerne également le joint homocinétique fabriqué selon ledit procédé.
PCT/EP1999/006033 1998-08-19 1999-08-18 Corps articule a deux elements WO2000011363A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU55175/99A AU5517599A (en) 1998-08-19 1999-08-18 Two-part articulated element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19837471.2 1998-08-19
DE1998137471 DE19837471A1 (de) 1998-08-19 1998-08-19 Zweiteiliger Gelenkkörper

Publications (1)

Publication Number Publication Date
WO2000011363A1 true WO2000011363A1 (fr) 2000-03-02

Family

ID=7877928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/006033 WO2000011363A1 (fr) 1998-08-19 1999-08-18 Corps articule a deux elements

Country Status (3)

Country Link
AU (1) AU5517599A (fr)
DE (1) DE19837471A1 (fr)
WO (1) WO2000011363A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020460A2 (fr) * 2001-08-31 2003-03-13 Gkn Sinter Metals Gmbh Corps de joint monobloc

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10248372B4 (de) * 2002-10-17 2009-06-25 Bf New Technologies Gmbh Gegenbahngelenk
US20060189396A1 (en) * 2005-02-24 2006-08-24 Kozlowski Keith A Driveline assembly with integrated joint and method of making the same
DE102013104065B4 (de) * 2013-04-22 2015-05-07 Gkn Driveline International Gmbh Kugelgleichlaufgelenk in Form eines käfiglosen Verschiebegelenks

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1388225A (en) * 1919-12-06 1921-08-23 Ernest H Webb Universal joint
US1660775A (en) * 1924-01-18 1928-02-28 Ernest H Webb Universal torque-transmitting device
FR1136065A (fr) * 1955-11-09 1957-05-09 Joint de transmission articulé
DE1170720B (de) * 1960-06-25 1964-05-21 Rheinmetall Gmbh Homokinetisches Universalgelenk
EP0463531A1 (fr) * 1990-06-29 1992-01-02 Toyoda Koki Kabushiki Kaisha Joint homocinétique à gorges de roulement croisées
US5290203A (en) * 1989-07-25 1994-03-01 Gkn Automotive, Inc. Constant velocity universal joint having high stress resistance
DE19633216C1 (de) * 1996-08-17 1998-01-02 Gkn Automotive Ag Kugelgleichlaufdrehgelenke mit verbesserter Kugelsteuerung
US5893801A (en) * 1996-11-04 1999-04-13 Ford Motor Company Segmented cross groove plunging constant velocity joint

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1388225A (en) * 1919-12-06 1921-08-23 Ernest H Webb Universal joint
US1660775A (en) * 1924-01-18 1928-02-28 Ernest H Webb Universal torque-transmitting device
FR1136065A (fr) * 1955-11-09 1957-05-09 Joint de transmission articulé
DE1170720B (de) * 1960-06-25 1964-05-21 Rheinmetall Gmbh Homokinetisches Universalgelenk
US5290203A (en) * 1989-07-25 1994-03-01 Gkn Automotive, Inc. Constant velocity universal joint having high stress resistance
EP0463531A1 (fr) * 1990-06-29 1992-01-02 Toyoda Koki Kabushiki Kaisha Joint homocinétique à gorges de roulement croisées
DE19633216C1 (de) * 1996-08-17 1998-01-02 Gkn Automotive Ag Kugelgleichlaufdrehgelenke mit verbesserter Kugelsteuerung
US5893801A (en) * 1996-11-04 1999-04-13 Ford Motor Company Segmented cross groove plunging constant velocity joint

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003020460A2 (fr) * 2001-08-31 2003-03-13 Gkn Sinter Metals Gmbh Corps de joint monobloc
WO2003020460A3 (fr) * 2001-08-31 2003-09-25 Gkn Sinter Metals Gmbh Corps de joint monobloc
CN100444993C (zh) * 2001-08-31 2008-12-24 Gkn金属烧结有限公司 由烧结金属构成的整体式活节体及其制造方法和装置

Also Published As

Publication number Publication date
DE19837471A1 (de) 2000-02-24
AU5517599A (en) 2000-03-14

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