WO2006122618A2 - Gelenk mit vergrössertem öffnungswinkel - Google Patents
Gelenk mit vergrössertem öffnungswinkel Download PDFInfo
- Publication number
- WO2006122618A2 WO2006122618A2 PCT/EP2006/003482 EP2006003482W WO2006122618A2 WO 2006122618 A2 WO2006122618 A2 WO 2006122618A2 EP 2006003482 W EP2006003482 W EP 2006003482W WO 2006122618 A2 WO2006122618 A2 WO 2006122618A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ball tracks
- ball
- tracks
- joint
- balls
- 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.)
- Ceased
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
- F16D3/2233—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 where the track is made up of two curves with a point of inflexion in between, i.e. S-track joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
- Y10T403/32647—Plural concave surfaces with diverse curvature
- Y10T403/32655—Interposed concavo-convex component
Definitions
- the invention relates to a constant velocity universal joint with an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, torque transmitting balls which are held in pairs of associated outer and inner ball tracks, and a ball cage which receives the balls in cage windows and in a common Middle plane K holds, the paths of the associated outer ball tracks and inner ball tracks are mirror-symmetrical to the center plane K of the constant velocity joint.
- the mentioned mirror symmetry of the trajectories refers to the longitudinal center lines of the ball tracks, which correspond to the path of the ball centers in the ball tracks.
- the plane is referred to, which is spanned by the intersecting longitudinal axes of the outer joint part and the inner joint part. These two longitudinal axes include the flexion angle, which is halved by the median plane K.
- Joints of the type mentioned here are designed as ball joints, in particular in the way that the ball tracks are unevenly spaced over the circumference, so that webs of different widths arise between adjacent ball tracks.
- the pairwise adjacent pairs of tracks in this case run in mutually parallel planes, wherein the lying between the ball tracks of these pairs of tracks webs represent those with the smaller width. Further, in this case, the adjacent balls held in these pairs of tracks can each be held in a common cage window.
- Joints of this type are referred to by the applicant as "twin-ball joints”. Regardless of the aforementioned special track shape, the flanks of the ball tracks are essentially stressed by the balls on pressure in torque load of ball joints.
- the desired enlargement of the opening cone thereby increases the risk of damage to the web edges at the axial ends of the outer ball tracks on the opening side of the joint outer part.
- the trajectory of the axial end sections is made deeper in relation to a theoretical trajectory that is mirror-symmetrical to the trajectory of the respective associated inner or outer ball tracks. This is particularly favorable in terms of production, since the tools for machining the ball tracks can be used without modification, with only the control curves must be changed.
- the path cross-section of the axial end sections in relation to a theoretical track cross-section, which would receive the balls with the track cross-section of the respective associated inner or outer ball tracks play, expanded on a type of outer and inner ball tracks.
- This can be achieved by machining mutually symmetrical paths of the outer or inner ball tracks with a first tool having the same control cams, but in each case the at least one end section of one of the types of outer or inner ball tracks. be reworked with a larger tool.
- the ball tracks in a kind of outer and inner ball tracks in a longitudinal section S-shaped and the axial end portion of the other type of ball tracks is recessed in the form of a straight tangential outlet.
- the outer joint part is closed on one side by a bottom and the axial end portion is designed in each case at the opening facing the end of the outer ball tracks or at the bottom end facing the inner ball tracks.
- the inventive concept can be applied to both end regions of the respective ball tracks.
- a joint design shown below with reference to the drawings is characterized in that the ball tracks are unevenly spaced over the circumference, so that webs of different widths arise between adjacent ball tracks.
- at least two balls are arranged in a common cage window and the webs of lesser width between see ball tracks of balls, which are arranged in a common cage window.
- eight balls are provided, which are arranged in four cage windows. It is provided that in each case the ball tracks, which are separated by a web of smaller width, extend in mutually parallel planes E1, E2.
- Figure 1 shows a twin-ball joint according to the prior art in the stretched state a) in axial view b) in a longitudinal section along the section line AA according to representation a);
- Figure 2 is a twin-ball joint according to the prior art in the bent state a) in axial view b) in a longitudinal section along the section line A-A according to representation a);
- FIG. 3 shows a twin-ball joint according to the invention in the stretched state a) in an axial view b) in a longitudinal section along the section line A-A according to illustration a);
- FIG. 4 shows a twin-ball joint according to the invention in the bent position a) in an axial view b) in a longitudinal section along the section line A-A according to illustration a);
- Figure 5 shows details of Figure 4b) in an enlarged view
- Figure 6 shows the outer joint part of Figure 4b) as a detail a) in axial view b) in a longitudinal section along the section line A-A according to representation a).
- FIG. 1 The two illustrations of FIG. 1 will be described together below. It is shown a so-called twin ball joint, in which the longitudinal courses of each adjacent pairs of tracks are determined by mutually parallel planes. With a total of eight spheres distributed over the circumference, two pairs of parallel planes each are recognizable as geometric locations of the center lines of the webs. Two of the planes E1, E2 are marked by dash-dotted lines that lie symmetrically to a first radial plane R1. A second radial plane R2 is perpendicular to this, without the parallel planes of the associated ball tracks would be displayed.
- the constant velocity universal joint 11 comprises an outer joint part 12 with an integrally formed bottom 13, which is axially opposite the joint opening 14.
- Outer part 12 is an inner joint part 15 with an insertion opening 16 in which an internal toothing 17 for torque introduction and an annular groove 18 for axially securing a plug-in shaft can be seen.
- the outer joint part 12 includes pairs of outer ball tracks 19- ⁇ , 19 2 ;
- the inner joint part 15 includes pairs of inne- ren ball tracks 20i, 20. 2
- the center lines of these pairs of tracks lie in the planes E1, E2 and the planes parallel to the radial plane R2.
- the pairs of tracks each take balls 21 1 , 21 2 .
- the balls are received in pairs in cage windows 22 of a ball cage 23, as can be seen in the offset section AA in representation b) in the lower half of the picture.
- the ball cage 23 is guided with its outer surface 31 in a spherical inner surface 24 of the outer joint part 12, in which the outer ball tracks 19 are formed, and that the inner surface 32 of the ball cage on a spherical outer surface 25 of the inner joint part 15 is guided.
- narrower webs 26 each alternate between pairs of ball tracks on the inner joint part with wider webs 27 between adjacent ball tracks on the inner joint part 15. The same applies mutatis mutandis to the outer joint part 12, where alternate narrower webs 28 between pairs of ball tracks with wider webs 29 between adjacent ball tracks.
- the opening 14 of the outer joint part 12 is widened by an opening cone 30 which defines trailing web edges 33 at the ends of the outer ball tracks 19.
- the ball tracks 19, 20 have in the longitudinal direction in each case S-shaped center lines, which are not shown here, and a correspondingly S-shaped running track ground.
- the track center lines and thus also the recognizable railway baselines are symmetrical to a center plane K containing the ball centers.
- the tracks 20 are curved outwards towards the joint opening side 14, the track curvature being directed towards the joint bottom 13 turns into its opposite.
- the inner joint part 15 is in this case angled relative to the outer joint part 12 by a flexion angle, by the longitudinal axis L 12 of the outer joint part 12 and the longitudinal axis of the Li 5 of Inner joint part 15 is included.
- the bending angle is halved by the center plane K, which contains the ball centers.
- the longitudinal axes U 2 , Li 5 span the bending plane, which corresponds to the plane Ri.
- the center plane K which is determined by the ball cage 23 and the position of the centers of the balls 21, halves this deflection angle.
- the ball 21 a shown in the upper half of the image has strongly approximated the opening cone 30. It is in torque-transmitting engagement with the opening-side end portion of the outer ball track 19a and the hinge bottom-side end portion of the inner ball track 20a. Due to the shape of the opening cone 30, the ball contact point of the ball 21 with the web edge is very close to the web edge 33 (opening edge) of the outer ball race 19a, so that there is a risk of edge breakouts.
- the ball 21 b shown in the lower half of the picture has moved in the outer ball track 19 b at its bottom end, while it is held in the associated inner ball track 20 b in the opening-side end area.
- the ball contact point on the web edge in the outer ball race 19b is far away from the functional end of the outer ball race. This does not end in the rest in a free web edge, but goes into a web outlet.
- the ball contact points of the balls on the trailing edges of the two inner ball tracks 20a, 20b are approximately equidistant from the open ends, the corresponding axial distance being greater than in the case of the upper ball 21a in relation to the outer ball track 19a, since the inner ball tracks 20a, 20b at both ends are unimpaired by Endkonusformationen. Rather, they end at radial end surfaces of the inner joint part 15th
- FIG. 3 The two illustrations of Figure 3 are described together below. It is shown a twin-ball joint according to the invention, in which the longitudinal courses of each adjacent pairs of tracks are determined by mutually parallel planes. With a total of eight spheres distributed over the circumference, two pairs of parallel planes each are recognizable as geometric locations of the center lines of the webs. Two of the planes E1, E2 are marked by dash-dotted lines that lie symmetrically to a first radial plane R1. A second radial plane R2 is perpendicular to this, without the parallel planes of the associated ball tracks would be displayed.
- the constant velocity universal joint 11 comprises an outer joint part 12 with a nem molded bottom 13, the joint opening 14 is axially opposite.
- the outer joint part 12 is an inner joint part 15 with an insertion opening 16, in which an internal toothing 17 for torque introduction and an annular groove 18 for axially securing a plug-in shaft can be seen.
- the outer joint part 12 comprises pairs of outer ball tracks 19i, 19 2 ;
- the inner joint part 15 comprises pairs of inner ball tracks 20i, 20 2 .
- the center lines of these pairs of tracks lie in the planes E1, E2 and the planes parallel to the radial plane R2.
- the pairs of tracks each take balls 2I 1 , 212.
- the balls are received in pairs in cage windows 22 of a ball cage 23, as can be seen in the offset section AA in representation b) in the lower half of the picture.
- the ball cage 23 is guided with its outer surface 31 in a spherical inner surface 24 of the outer joint part 12, in which the outer ball tracks 19 are formed, and that the inner surface 32 of the ball cage on a spherical outer surface 25 of Joint inner part 15 is guided.
- narrower webs 26 each alternate between pairs of ball tracks on the inner joint part with wider webs 27 between adjacent ball tracks on the inner joint part 15.
- narrower webs 28 alternate between pairs of ball tracks with wider webs 29 between adjacent ball tracks.
- the opening 14 of the outer joint part 12 has an opening cone 30 which, together with the web cross-sections, defines recessed web edges 33 at the open web ends of the outer ball tracks 19.
- the ball tracks 19, 20 have in the longitudinal direction in each case largely S-shaped center lines, which are not shown here, and a correspondingly largely S-shaped course running web ground.
- the Bahn Mittellienien and thus in a broader sense, the recognizable railway baselines are symmetrical over a considerable axial area in the outer joint part 12 and the inner joint part 15 to a central plane containing the spherical center K.
- the inner joint part 15 is in this case angled relative to the outer joint part 12 by a bending angle which is enclosed by the longitudinal axis Li 2 of the outer joint part 12 and the longitudinal axis Li 5 of the inner joint part 15.
- the bending angle is halved by the center plane K, which contains the ball centers.
- the longitudinal axes L 12 , L 15 span the bending plane corresponding to the plane Ri.
- the median plane K which is defined by the ball cage 23 and the position of the balls held by it in the median plane, bisects this deflection angle.
- the ball 21 a shown in the upper half of the image has strongly approximated the opening cone 30. It is thereby removed from a torque-transmitting engagement with the opening-side end portion of the outer ball track 19a and the hinged-floor-side end portion 34 of the inner ball track 20a such that there is no mirror symmetry with respect to the median plane K between the center lines of both end sections. As a result, the ball 21a in the pair of tracks has radial play and thereby also peripheral play. Due to the shape of the opening cone of the ball contact point of the ball 21 a with the web edge is very close to the web edge 33 (opening edge) of the outer ball race 19 a, which is completely relieved of ball forces.
- the play-free torque transmission is perceived by the other balls.
- the ball 21b shown in the lower half has moved in the outer ball track 19b at its bottom end, while it is held in the associated inner ball track 20b so as to transmit torque in the opening-side end area.
- the center lines of these end portions are symmetrical to the center plane K.
- the ball contact point on the web edge in the outer ball race 19b is in this case far away from the functional end of the outer ball track. This does not end in the rest in a free web edge, but goes into a web outlet 35 on.
- the ball contact points of the balls on the trailing edges of both inner ball tracks 20a 1, 20b are approximately equidistant from the open track ends, the corresponding axial distance being greater than in the case of the upper ball 21a in relation to the web edge 33 of the outer ball track 19a. because the inner ball tracks at both ends reach up to radial end faces of the inner joint part.
- the outer joint part 12 is shown according to Figures 3 and 4 as a single part in the staggered section AA.
- the same details are provided with the same reference numerals. Reference is made to the foregoing descriptions.
- the axial distance between the center plane K and the exit of the web base of the outer ball tracks 19 in the opening cone 30 is denoted by Y. This measure can according to the invention over prior art joints be minimized according to the invention.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Animal Behavior & Ethology (AREA)
- Hematology (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Diabetes (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Automatic Assembly (AREA)
- Friction Gearing (AREA)
- Rolling Contact Bearings (AREA)
- Retarders (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/914,384 US20090269129A1 (en) | 2005-05-13 | 2006-04-15 | Joint With Increased Splay Angle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005023035A DE102005023035A1 (de) | 2005-05-13 | 2005-05-13 | Gelenk mit vergrößertem Öffnungswinkel |
| DE102005023035.0 | 2005-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2006122618A2 true WO2006122618A2 (de) | 2006-11-23 |
| WO2006122618A3 WO2006122618A3 (de) | 2007-02-15 |
Family
ID=37076145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/003482 Ceased WO2006122618A2 (de) | 2005-05-13 | 2006-04-15 | Gelenk mit vergrössertem öffnungswinkel |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20090269129A1 (de) |
| CN (1) | CN101218447A (de) |
| DE (1) | DE102005023035A1 (de) |
| WO (1) | WO2006122618A2 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008044723B4 (de) * | 2008-08-28 | 2017-03-23 | Gkn Driveline International Gmbh | Gelenkinnenteil für ein Gleichlaufdrehgelenk |
| CN102392858B (zh) * | 2011-11-04 | 2014-03-19 | 彭敖勇 | 对称滚珠滚道等速万向节 |
| KR101345903B1 (ko) | 2011-11-21 | 2013-12-30 | 현대위아 주식회사 | 차량용 슬라이드식 볼타입 등속조인트 |
| JP5744103B2 (ja) * | 2013-05-09 | 2015-07-01 | 本田技研工業株式会社 | 固定型等速ジョイント |
| DE102017118605B4 (de) * | 2017-08-15 | 2023-08-24 | Neapco Intellectual Property Holdings, Llc | Gleichlaufdrehgelenk |
| US12234864B2 (en) * | 2018-06-15 | 2025-02-25 | Steering Solutions Ip Holding Corporation | Constant velocity joint with asymmetric opposed tracks |
| PL3818275T3 (pl) * | 2018-07-05 | 2023-01-09 | Gkn Driveline International Gmbh | Przegub równobieżny |
| JP7458712B2 (ja) * | 2019-04-05 | 2024-04-01 | Ntn株式会社 | 固定式等速自在継手 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT277675B (de) * | 1968-01-18 | 1970-01-12 | Loehr & Bromkamp Gmbh | Gleichlaufdrehgelenk |
| DE3148489A1 (de) * | 1981-12-08 | 1983-06-16 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | "gleichlaufgelenk" |
| US5290203A (en) * | 1989-07-25 | 1994-03-01 | Gkn Automotive, Inc. | Constant velocity universal joint having high stress resistance |
| DE10337919B4 (de) * | 2003-08-18 | 2008-01-24 | Gkn Driveline International Gmbh | Gegenbahngelenk mit verbessertem Kugelkäfig |
| DE10337918B4 (de) * | 2003-08-18 | 2010-01-07 | Gkn Driveline Deutschland Gmbh | Twin-Ball-Gelenk mit verbessertem Kugelkäfig |
| DE102004006225B4 (de) * | 2003-08-22 | 2009-11-19 | Gkn Driveline Deutschland Gmbh | Gleichlaufgelenk mit geringer Radialbewegung der Kugeln |
| EP1807634B1 (de) * | 2004-11-02 | 2011-01-26 | GKN Driveline International GmbH | Gegenbahngelenk mit bahnwendepunkt |
| JP2006258170A (ja) * | 2005-03-16 | 2006-09-28 | Ntn Corp | 固定式等速自在継手 |
-
2005
- 2005-05-13 DE DE102005023035A patent/DE102005023035A1/de not_active Ceased
-
2006
- 2006-04-15 CN CNA2006800252665A patent/CN101218447A/zh active Pending
- 2006-04-15 US US11/914,384 patent/US20090269129A1/en not_active Abandoned
- 2006-04-15 WO PCT/EP2006/003482 patent/WO2006122618A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006122618A3 (de) | 2007-02-15 |
| CN101218447A (zh) | 2008-07-09 |
| DE102005023035A1 (de) | 2006-11-23 |
| US20090269129A1 (en) | 2009-10-29 |
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