EP1425519A1 - Lagerung für kreuzgelenkzapfen - Google Patents
Lagerung für kreuzgelenkzapfenInfo
- Publication number
- EP1425519A1 EP1425519A1 EP02798699A EP02798699A EP1425519A1 EP 1425519 A1 EP1425519 A1 EP 1425519A1 EP 02798699 A EP02798699 A EP 02798699A EP 02798699 A EP02798699 A EP 02798699A EP 1425519 A1 EP1425519 A1 EP 1425519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- universal joint
- thrust washer
- joint pin
- face
- pin
- 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.)
- Withdrawn
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
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/385—Bearing cup; Bearing construction; Bearing seal; Mounting of bearing on the intermediate member
-
- 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
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
- F16C21/005—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement the external zone of a bearing with rolling members, e.g. needles, being cup-shaped, with or without a separate thrust-bearing disc or ring, e.g. for universal joints
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/41—Couplings
Definitions
- the present invention relates to the mounting for universal joint pins used in universal joint bushings, for example a universal joint.
- the structure comprises a radial bearing, the cylindrical rolling elements of which are arranged between the universal joint pin and the universal joint bushing.
- Another axial bearing is provided between the journal and the bottom of the universal joint bushing, the journal being supported indirectly via a thrust washer on the bottom of the universal joint bushing.
- the axial bearing comprises a closed thrust washer made of plastic. In the center, this forms a contact surface oriented in the direction of the pin and concentrically with it on the outer circumference a likewise axially projecting rim with a reduced length relative to the bearing surface, as a result of which there is a gap between the rim and the end face of the pin. Between the central contact surface and the outer rim, the thrust washer forms recesses on the side facing the pins for receiving a lubricant. The space limited to an annular gap between the central contact surface and the outer rim can only accommodate a small amount of lubricant. The known structure thus has a narrowly limited lubricant reservoir. Summary of the invention
- the object of the invention is to realize storage with an enlarged lubricant reservoir.
- the thrust washer is provided with, for example, partially arranged openings, pockets or recesses, which are introduced continuously or on one side into the thrust washer.
- the universal joint pin has a shape that significantly increases the space for receiving a lubricant or a lubricant.
- the thrust washer according to the invention forms a lubricant reservoir which extends axially from the end face of the universal joint pin to at least partially to the bottom of the universal joint sleeve and is delimited radially from the central attachment of the thrust washer to the inner wall of the universal joint sleeve in some areas.
- This design thus significantly increases the available lubricant volume, which has an advantageous effect on the life of the universal joint rifle.
- the structure of the thrust washer according to the invention also provides axially protruding stop elements which are shortened in comparison to the central projection and which ensure a gap dimension between the universal joint pin and the stop elements.
- the thrust washers according to the invention are also guided on the outside directly on the inner wall or on a bottom section of the universal joint bush.
- the thrust washer extends over the entire surface of the bottom of the universal joint bush and at the same time covers the end face of the universal joint pin.
- the invention according to claim 2 relates to a universal joint pin, deviating from the indirect support of the pin via a thrust washer on the floor according to claim 1.
- the bearing according to claim 2 comprises a thrust washer which concentrically surrounds a central, axially projecting projection of the universal joint pin.
- the universal joint pin is supported directly on the base of the universal joint bush via the central projection.
- the invention also includes an end hole in the universal joint pin.
- the end face of the thrust washer be fitted into a central hole in the universal joint pin.
- the front shoulder is free of play in the front hole of the universal joint pin used so that an annular space is formed, which can be used as a lubricant reservoir.
- the invention further includes a stepped end bore in the universal joint pin, the axial shoulder of the thrust washer being pressed into the section of the stepped bore with the smallest diameter.
- both inventions also enable at least two-stage support of the universal joint pin on the floor.
- An advantageous embodiment of the invention includes a thrust washer, the stop element are alternately formed in two different lengths. This results in at least a three-stage support on the thrust washer or the bottom of the universal joint bush, which is dependent on the axial force of the universal joint pin that occurs. This measure has a positive influence on the load on the soil and thus the service life of the entire universal joint bushing.
- the thrust washer is guided or centered on the inner wall of the universal joint bush. This installation position enables the thrust washer to form an axial stop for the rolling elements.
- the inventions according to claims 1 and 2 can further be provided with a bottom of the universal joint bushing, in which an enforcement is formed without cutting.
- the geometric design of the enforcement is advantageously adapted to the size or area of the end face of the thrust washer or the projection of the universal joint pin.
- the penetration comparable to a corrugation improves the rigidity and thus the strength of the floor, which means that the floor has improved fatigue strength without changing the floor wall thickness.
- Another inventive design of the universal joint rifle relates to a floor in which a step is formed without cutting. This step of the base, which runs in a direction facing away from the end face of the universal joint pin and corresponds to a stepped enforcement, is designed such that the thrust washer is centered in the region of the smallest diameter.
- the thrust washer is provided with a shoulder whose axial length exceeds the step height of the floor and thus forms a support surface for the universal joint pin.
- the attachment is arranged in such a way that an axial oversize or a gap dimension is established between the end face of the universal joint pin and a step in the base.
- this design enables a support of the universal joint pin that is graded depending on the axial force that occurs.
- Figure 1 in a half section an universal joint bush according to the invention, in which the thrust washer partially engages the end of the universal joint pin;
- Figure 2 is a thrust washer largely corresponding to Figure 1, but without stop elements
- FIG. 3 shows a cross-section of a universal joint bush, the thrust washer of which is pressed into the front of the universal joint pin via a central shoulder;
- Figure 4 is a two-part thrust washer with an outer
- FIG. 5 shows a thrust washer which extends over the entire base of the universal joint bushing and is provided with a central shoulder on which the universal joint is guided;
- FIG. 6 shows a bottom of the universal joint bushing, which is stepped in the axial direction, in which the thrust washer is centered and which bears against the universal joint pin via a central shoulder;
- Figure 7 shows a universal joint pin, which is directly on the bottom of the
- FIG. 8 shows a universal joint pin which rests with the central projection on the thrust washer.
- FIG. 1 shows the structure of a bearing according to the invention of a universal joint pin 1 in a non-cutting shaped universal joint bushing 2.
- the radial bearing 3 is cylindrical in an annular gap 4, which is radially delimited by a wall 5 of the universal joint bushing 2 and a lateral surface 6 of the universal joint bolt 1 designed rolling elements 7 arranged.
- a thrust washer 10a serves as the axial bearing 8, which rests over the entire surface against a bottom 9 of the universal joint bushing 2 and is centered on the wall 5 of the universal joint bushing.
- the thrust washer 10a is provided with a shoulder 11a which engages in a bore 12 in the universal joint pin 1.
- the shoulder 11a With the free end of the end face 19, the shoulder 11a is supported on a step 14 which is offset axially to an end face 13 of the universal joint pin 1.
- the diameter of the bore 12 exceeds the diameter of the extension 11a, so that an annular space 15 surrounding the extension 11a is formed.
- the thrust washer 10a On the outside, the thrust washer 10a has a circumferential flange 16 which is oriented in the direction of the rolling elements 7 and which forms an axial stop for the rolling elements 7. At the same time borders 16 a ring-shaped recess 17, which occurs between the approach 11 and the board 16.
- radially inwardly directed stop elements 18 which are partially distributed over the circumference and which are designed such that a gap dimension "s" between the end face 13 of the universal joint pin 1 and the stop elements 18 result in the installed state.
- the gap dimension "s” enables a stepped support of the universal joint pin 1 in the universal joint bushing 2, ie when higher axial forces occur in the direction of the arrow, there is first an elastic deformation of the shoulder 11a on which the universal joint pin 1 is supported. After an axial displacement, which corresponds to the gap dimension "s", the universal joint pin 1 is supported on the outside against the stop elements 18 of the thrust washer 10a.
- the annular space 15 in the universal joint pin 1 and the recess 17 in the thrust washer 10a jointly form free spaces or chambers that can be used as a lubricant reservoir.
- the size of these recesses can advantageously be chosen such that relubrication of the joint cross bush 2 can be dispensed with and so that a maintenance-free universal joint bushing can be realized.
- FIGS. 2 to 8 show further exemplary embodiments of universal joint rifles according to the invention. Corresponding components are provided with the reference numerals used in FIG. 1, so that reference can be made to FIG. 1 for their description.
- the thrust washer 10b is shown in the installed state. In contrast to FIG. 1, the thrust washer 10b does not show any stop elements 18. Instead, the end face 13 of the universal joint pin 1 is supported with an increased axial force acting in the direction of the arrow after an elastic deformation of the extension 11b on a section of the base 20 that is located between the central extension 11b and the rim 16 of the thrust washer 10b. Another difference is the axial length of the rim 16 on the thrust washer 10b, which is shortened in comparison to the thrust washer 10a. Consequently, the thrust washer 10b enables a more compact design or space-optimized universal joint bushing 2 in comparison to FIG. 1.
- the bottom 9 of the universal joint bushing 2 is provided with an inward passage 21 on which the thrust washer 10c is supported centrally on the inside.
- the approach 11 c of the thrust washer 10c is pressed into a bore 22 of the universal joint pin 1.
- the thrust washer 10c is fastened to the universal joint pin 1 and enables preassembly and thus simple handling or automated assembly of the universal joint bushing 2.
- the thrust washer 10d also shown in FIG. 4 in the installed state shows a two-part construction. Comparable to FIG. 3, an extension 11d is pressed into the bore 22 of the universal joint pin 1 and is supported on the penetration 21 of the base 9. As a further component, a ring element 23 centered on the inside of the wall 5 of the universal joint bushing 2 is used to form an axial stop for the rolling elements 7.
- the lubricant reservoir is formed by the annular space 15 in the universal joint pin 1 and an intermediate space 24 which is located between the bottom 9 of the Universal joint pin 1 and the end face 13 of the universal joint pin 1 adjusts.
- the axial width of the intermediate space is characterized by the gap dimension "s".
- An axial force acting on the universal joint pin 1 and acting in the direction of the arrow is first compensated for by the attachment 11d or transmitted via the penetration 21 into the base 9 of the universal joint sleeve 2.
- a further increase in the Axial force causes an elastic deformation of the shoulder 11d until the end face 13 of the universal joint pin 1 rests on the bottom 9 of the universal joint bushing 2.
- the universal joint bush 2 according to FIG. 5 is provided with a lubricant reservoir which is determined exclusively by the recess 17 in the thrust washer 10e.
- the axial length of the shoulder 11e immediately takes up flow to the size of the recess 17.
- the closed end face 13 of the universal joint pin 1 is supported on the end face 19 of the shoulder 11e.
- the universal joint bushing 2 is provided with a stepped base 9.
- the thrust washer 10f whose shoulder 11f has an axial length “I” that exceeds a step height “h”, is centered on the step 25 with the smallest inside diameter. This ensures that the universal joint pin 1 is guided on the end face 19 of the shoulder 11f and only after an increased axial force, combined with an elastic deformation of the shoulder 11f, the end face 13 of the universal joint pin 1 is supported on the step 26 of the base 9.
- the recess 17 serves as a lubricant reservoir, which is delimited radially by the lateral surface of the extension 11f and the wall of the base 9 in the area of the step 25.
- the universal joint bush 2 shows the thrust washer 10g, which does not have a central projection but only comprises a ring element centered on the wall 5.
- the thrust washer 10g forms a flange 16 on which the rolling elements 7 are supported and stop elements 18 for supporting the universal joint pin 1 with increased axial forces.
- the universal joint pin is supported on the penetration 21 of the base 9 via a central projection 27.
- the lubricant reservoir, the annular space 17, is determined directly by the axial length of the projection 27.
- FIG. 8 shows the thrust washer 10h, provided with a relatively short axial shoulder 11h, on which the projection 27 of the universal joint pin 1 is supported.
- the largely circular lubricant reservoir, the recess 17, is determined by the axial lengths of the extension 11h and the projection 27.
- the thrust washer 11 h furthermore has stop elements 18, 28 of different lengths.
- This design forms gap dimensions "s" and "s 2 " which differ from one another and which occur between the end face 13 of the universal joint pin 1 and the thrust washer 11 h. This measure enables an increased axial force acting in the direction of the arrow in the cross Steering pin 1 a directly force-dependent, multi-stage support on the thrust washer 10h and thus on the bottom 9 of the universal joint bushing 2.
- Thrust washer Bottom 20 Bottom a Thrust washer 21 Penetration b Thrust washer 22 Bore c Thrust washer 23 Ring element d Thrust washer 24 Clearance e Thrust washer 25 Step f Thrust washer 26 step g Thrust washer 27 Projection h Thrust washer 28 Stop element a approach b Approach c approach d approach e approach f approach h approach
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10145536A DE10145536A1 (de) | 2001-09-14 | 2001-09-14 | Lagerung für Kreuzgelenkzapfen |
DE10145536 | 2001-09-14 | ||
PCT/EP2002/009054 WO2003025410A1 (de) | 2001-09-14 | 2002-08-13 | Lagerung für kreuzgelenkzapfen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1425519A1 true EP1425519A1 (de) | 2004-06-09 |
Family
ID=7699162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02798699A Withdrawn EP1425519A1 (de) | 2001-09-14 | 2002-08-13 | Lagerung für kreuzgelenkzapfen |
Country Status (4)
Country | Link |
---|---|
US (2) | US7178984B2 (de) |
EP (1) | EP1425519A1 (de) |
DE (1) | DE10145536A1 (de) |
WO (1) | WO2003025410A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003900336A0 (en) * | 2003-01-28 | 2003-02-13 | Steerable Wheel Systems Pty Ltd | Steerable single wheel unit for trailers |
US6827649B2 (en) * | 2003-03-12 | 2004-12-07 | American Axle & Manufacturing, Inc. | Universal joint with friction fit and bearing cup retainer |
US6855059B2 (en) * | 2003-04-14 | 2005-02-15 | American Axle & Manufacturing, Inc. | Universal joint with bearing cup retention thrust washer |
US7887422B2 (en) | 2007-08-02 | 2011-02-15 | American Axle & Manufacturing, Inc. | Universal joint with bearing cup retention mechanism |
DE102014224751A1 (de) * | 2014-12-03 | 2016-05-25 | Schaeffler Technologies AG & Co. KG | Zapfenlager für Kreuzgelenke und Verfahren zum Herstellen eines Zapfenlagers |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1185423B (de) | 1962-09-27 | 1965-01-14 | Duerkoppwerke Ag | Sicherung gegen ein Herausfallen der Nadeln aus einem vollrolligen, kaefiglosen Nadellager |
US3353374A (en) * | 1965-03-17 | 1967-11-21 | Maybach Motorenbau Gmbh | Universal joint |
DE7302217U (de) | 1973-01-22 | 1973-09-27 | Duerkoppwerke Gmbh | Lager für Kreuzgelenkzapfen |
FR2231261A5 (de) * | 1973-05-25 | 1974-12-20 | Pitner Alfred | |
GB1480650A (en) * | 1973-08-23 | 1977-07-20 | Nadella & Pitner | Universal joints |
FR2256691A6 (en) | 1973-12-28 | 1975-07-25 | Pitner Alfred | Carden joint pin cylindrical bearing - is inserted under tension and provides flexible support to pin-cross end surface |
GB1451482A (en) | 1973-11-09 | 1976-10-06 | Gkn Transmissions Ltd | Hookes joints |
DE2848813C2 (de) * | 1978-11-10 | 1981-10-01 | Uni-Cardan Ag, 5200 Siegburg | Kreuzgelenk |
DE8430909U1 (de) * | 1984-10-20 | 1984-11-29 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Lagerbüchse, insbesondere für Kreuzgelenke |
JPH0648012B2 (ja) | 1985-02-07 | 1994-06-22 | 株式会社松井製作所 | ユニバ−サルジヨイント |
JPH0686887B2 (ja) * | 1985-02-12 | 1994-11-02 | 株式会社松井製作所 | ユニバ−サルジヨイント |
US4932923A (en) * | 1989-08-10 | 1990-06-12 | General Motors Corporation | Sealed bearing arrangement for universal joint |
JP2546447Y2 (ja) * | 1989-10-23 | 1997-09-03 | 富士機工株式会社 | 自在継手 |
DE9005935U1 (de) * | 1990-05-25 | 1990-07-05 | Skf Gmbh, 8720 Schweinfurt, De | |
DE9014393U1 (de) | 1990-10-17 | 1991-01-03 | Skf Gmbh, 8720 Schweinfurt, De | |
FR2686950B1 (fr) * | 1992-01-31 | 1996-06-07 | Nadella | Douille en cuvette perfectionnee pour roulement radial et son application a un joint de cardan. |
DE9407311U1 (de) * | 1994-05-05 | 1994-06-30 | Schaeffler Waelzlager Kg | Anlaufscheibe für Gelenkkreuzbüchsen |
-
2001
- 2001-09-14 DE DE10145536A patent/DE10145536A1/de not_active Withdrawn
-
2002
- 2002-08-13 WO PCT/EP2002/009054 patent/WO2003025410A1/de not_active Application Discontinuation
- 2002-08-13 EP EP02798699A patent/EP1425519A1/de not_active Withdrawn
-
2004
- 2004-03-12 US US10/800,401 patent/US7178984B2/en not_active Expired - Fee Related
-
2007
- 2007-01-10 US US11/621,774 patent/US20080108444A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO03025410A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2003025410A1 (de) | 2003-03-27 |
US20080108444A1 (en) | 2008-05-08 |
US7178984B2 (en) | 2007-02-20 |
DE10145536A1 (de) | 2003-07-31 |
US20040213490A1 (en) | 2004-10-28 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20040124 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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17Q | First examination report despatched |
Effective date: 20040604 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER KG |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20100302 |
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P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |