DE1080368B - Sealing for roller bearings of universal joint journals, especially for cardan shafts - Google Patents

Sealing for roller bearings of universal joint journals, especially for cardan shafts

Info

Publication number
DE1080368B
DE1080368B DEG20457A DEG0020457A DE1080368B DE 1080368 B DE1080368 B DE 1080368B DE G20457 A DEG20457 A DE G20457A DE G0020457 A DEG0020457 A DE G0020457A DE 1080368 B DE1080368 B DE 1080368B
Authority
DE
Germany
Prior art keywords
ring
sealing
spring
universal joint
roller bearings
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.)
Pending
Application number
DEG20457A
Other languages
German (de)
Inventor
Dipl-Ing Willi Kempf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gelenkwellenbau GmbH
Original Assignee
Gelenkwellenbau 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 Gelenkwellenbau GmbH filed Critical Gelenkwellenbau GmbH
Priority to DEG20457A priority Critical patent/DE1080368B/en
Priority to FR1161938D priority patent/FR1161938A/en
Publication of DE1080368B publication Critical patent/DE1080368B/en
Pending legal-status Critical Current

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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7809—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for needle roller bearings
    • 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
    • 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
    • F16D3/40—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 with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
    • F16D3/41—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 with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes with ball or roller bearings
    • 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

Landscapes

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

Description

Abdichtung für Wälzlager von Kreuzgelenkzapfen, insbesondere bei Gelenkwellen Die Erfindung bezieht sich auf die Abdichtung von Wälzlagern, die insbesondere bei den Kreuzgelenkzapfen von Gelenkwellen Verwendung findet. Es ist bekannt, diese Kreuzgelenkzapfen in Nadellagern zu lagern, um eine möglichst geringe Reibung zwischen dem Gelenkzapfen und der Außenschale zu erhalten. Es ist aber notwendig, diese Nadellager vor dem Eintritt von Schmutz und umgekehrt auch vor dem Austritt des Schmiermittels zu schützen.Sealing for roller bearings of universal joint journals, especially for cardan shafts The invention relates to the sealing of rolling bearings, in particular at the universal joint pin of cardan shafts is used. It is known this To store universal joint journals in needle bearings to minimize friction between the pivot pin and the outer shell. But it is necessary to have these needle roller bearings before the ingress of dirt and vice versa also before the leakage of the lubricant to protect.

Um eine möglichst einfache Abdichtung zu erzielen, wird gemäß der Erfindung vorgeschlagen, zwischen der Außenschale und einem Ansatz des Gelenkzapfens einen der Wirkung der Zentrifugalkraft bei Drehung des Gelenks unterworfenen und hierbei an der Außenschale anliegenden oder gleitenden Gleitring anzuordnen. Dieser Gleitring kann in verschiedener Weise ausgebildet werden, so kann beispielsweise ein ein-oder mehrteiliger, mit Flachfedern belasteter Metall-oder Kunststoffring, z. B. aus Phenolharzen, Polyamiden od. dgl., oder Graphitringe od. dgl. Verwendung finden. Die Flachfedern können hierbei von einem U-förmigen Ring aus elastischem Werkstoff umgeben werden. Auch kann .die Flachfeder zwischen zwei winkelförmigen Ringen angeordnet sein. Nach einer weiteren Ausführungsform kommen zwei ineinander angeordnete Ringe zur Anwendung, deren Berührungsflächen kegelig ausgebildet sind. Schließlich kann man auch einen federbelasteten, winkelförmigen Dichtungsring benutzen, der in eine Nut der Außenschale oder in eine Nut des Zapfens eingreift.In order to achieve the simplest possible seal, according to the Invention proposed between the outer shell and an approach of the pivot pin one subject to the action of centrifugal force when the joint rotates and here to be arranged on the outer shell resting or sliding sliding ring. This Sliding ring can be designed in various ways, for example a one-part or multi-part metal or plastic ring loaded with flat springs, z. B. of phenolic resins, polyamides or the like. Or graphite rings or the like. Use Find. The flat springs can be made of a U-shaped ring made of elastic Material are surrounded. The flat spring can also be between two angular Rings be arranged. According to a further embodiment, two come into one another arranged rings for use, the contact surfaces of which are conical. Finally, you can also use a spring-loaded, angular sealing ring, which engages in a groove in the outer shell or in a groove in the pin.

In den Zeichnungen sind in den Fig. 1 bis 6 verschiedene Ausführungsbeispiele von Abdichtungen gemäß der Erfindung im Schnitt dargestellt. Die Fig. 7 veranschaulicht :die bei einer Gelenkwelle wirksamen Zentrifugalkräfte.In the drawings, FIGS. 1 to 6 show different exemplary embodiments of seals according to the invention shown in section. Fig. 7 illustrates : the centrifugal forces acting on a cardan shaft.

In Fig. 1 ist der Kreuzgelenkzapfen 1 mittels der Nadeln 2 in der Außenschale 3 gelagert. Zur Abdichtungdient ein Ring 4, der in bekannter Weise von einer Flachfeder 5 od. dgl. belastet ist. Diese Feder stützt sich gegen einen Ansatz des Zapfens 1 ab und ist von einem U-förmigen Ring 6 umgeben, der als Schutzring für die Dichtung dient und der vorteilhaft auf den Kreuzgelenkzapfen 1 aufgepreßt ist. Die Flachfeder 5 kann in einem U-förmigen Ring 7 aus elastischem Werkstoff untergebracht werden. Der Kreuzgelenkzapfen 1 kann auch in bekannter Weise mit einer Bohrung 1 a zur Zuführung und Aufnahme eines Schmiermittels versehen sein. Hierbei kann der Ring 4 in an sich bekannter Weise eine Nase od. dgl. erhalten, die in eine Aussparung des U-förmigen Ringes 6 eingreift, um den Ring 4 gegen Drehen zu sichern.In Fig. 1, the universal joint pin 1 is by means of the needles 2 in the Outer shell 3 stored. A ring 4 is used for sealing, in a known manner from a flat spring 5 or the like. Is loaded. This spring is supported against an approach of the pin 1 and is surrounded by a U-shaped ring 6, which acts as a protective ring serves for the seal and is advantageously pressed onto the universal joint pin 1 is. The flat spring 5 can be in a U-shaped ring 7 made of elastic material be accommodated. The universal joint pin 1 can also in a known manner with a Bore 1 a be provided for supplying and receiving a lubricant. Here the ring 4 can od in a known manner a nose Recess of the U-shaped ring 6 engages in order to secure the ring 4 against rotation.

Man erreicht so eine sehr gute und einwandfreie Abdichtung des Nadellagers, wobei das Eintreten von Schmutz und das Heraustreten von Fett vermieden wird.A very good and perfect seal of the needle bearing is achieved in this way, avoiding the entry of dirt and the exit of grease.

Bei dem Ausführungsbeispiel nach Fig. 2 findet ein Ring 4 Verwendung, der nicht mit planparallelen Flächen versehen ist, sondern bei dem die Fläche 8 kegelig verläuft, entsprechend der Stirnfläche der Außenschale 3. Bei diesem Ausführungsbeispiel ist die Feder 5 zwischen zwei winkelförmigen Ringen 9 und 10 angeordnet, deren axial gerichtete Flansche gegeneinanderliegen. Auch hierbei kann, falls es erforderlich ist, der Ring 4 gegen Drehen gesichert sein, indem er z. B. mit dem winkelförmigen Ring 9 verbunden wird.In the embodiment according to FIG. 2, a ring 4 is used, which is not provided with plane-parallel surfaces, but in which the surface 8 runs conically, corresponding to the end face of the outer shell 3. In this embodiment the spring 5 is arranged between two angular rings 9 and 10, the axial facing flanges are against each other. Here too, if necessary is, the ring 4 be secured against rotation by z. B. with the angular Ring 9 is connected.

Fig.3 zeigt eine Ausführungsform, bei der die Dichtungsringe aus einem Innenring 11 und einem Außenring 12 bestehen. Die Federn 5 a und 5 b stützen sich gegen einen Winkelring 13, der seinerseits gegen die radiale Fläche 14 des Zapfens 1 anliegt.Fig.3 shows an embodiment in which the sealing rings from a Inner ring 11 and an outer ring 12 are made. The springs 5 a and 5 b are supported against an angle ring 13, which in turn against the radial surface 14 of the pin 1 is present.

Bei diesen axialen Abdichtungen durch eine Federbelastung gemäß Fig. 1 bis 3 tritt bei Steigerung der Drehzahl durch die Zentrifugalkraft ein verstärktes Anpressen und damit eine erhöhte Dichtwirkung des axial anliegenden Gleitringes ein.With these axial seals by a spring loading according to Fig. 1 to 3 increases when the speed is increased due to the centrifugal force Pressing on and thus an increased sealing effect of the axially adjacent sliding ring a.

Fig. 4 zeigt als Abdichtungsringe zwei ineinanderliegende Ringe 15 und 16, bei denen der Innenring 16 in einer Nut 17 des Zapfens 1 angeordnet ist. Um diese Nut zu erzielen, kann auf ,dem Zapfen 1 eine besondere Buchse 18 angeordnet werden. Gemäß der linken Hälfte dieser Fig. 4 kann der Außenring 15 durch eine Feder 19 odergemäß der rechten Hälfte der Fig. 4 durch einen Sprengring 20 in seiner Lage gehalten werden.4 shows two rings 15 lying one inside the other as sealing rings and 16, in which the inner ring 16 is arranged in a groove 17 of the pin 1. In order to achieve this groove, a special bush 18 can be arranged on the pin 1 will. According to the left half of this Fig. 4, the outer ring 15 can by a spring 19 or according to the right half of FIG. 4 by a snap ring 20 in its position being held.

Nach Fig. 5 wird zur Abdichtung ein winkelförmiger Ring 21 benutzt, der mit seinem flanschartigen Teil in eineNut22 derAußenschale3 eingreift. Dieser Ring wird durch eine Feder 23 gehalten. Zum Abschluß der Nut 22 dient ein eingelegter Ring 24. Fig.6 zeigt eine ähnliche Ausführungsform. Hier ist jedoch der Kreuzgelenkzapfen 1 mit einer Nut 25 ausgerüstet, in die der winkelförmige Ring 26 ragt. Um die Nut zu schaffen, wird auch in diesem Fall eine Buchse 18 auf dem Kreuzgelenkzapfen 1 angeordnet. Auch dieser winkelförmige Ring wird durch eine Feder 23 belastet.According to Fig. 5, an angular ring 21 is used for sealing, which engages with its flange-like part in a groove 22 in the outer shell 3. This The ring is held in place by a spring 23. At the end of the groove 22 an inserted one is used Ring 24. 6 shows a similar embodiment. Here is however the universal joint pin 1 equipped with a groove 25 into which the angular ring 26 protrudes. To create the groove, a bushing 18 is also in this case on the Universal joint pin 1 arranged. This angular ring is also held by a spring 23 charged.

Fig.7 veranschaulicht die Wirkung der Zentrifugalkräfte Z bei Drehung der Gelenkwelle.7 illustrates the effect of the centrifugal forces Z during rotation the PTO shaft.

Claims (5)

PATENTANSPRÜCHE; 1. Abdichtung für Wälzlager von Kreuzgelenkzapfen, dadurch gekennzeichnet, daß zwischen dem Gelenkzapfen (1) und der Außenschale (3) ein der Wirkung der Zentrifugalkraft bei Drehung des Gelenkes unterworfener und hierbei an der Außenschale (3) anliegender oder gleitender Gleitring (4,12, 15, 21, 26) angeordnet ist. PATENT CLAIMS; 1. Sealing for roller bearings of universal joint journals, characterized in that between the pivot pin (1) and the outer shell (3) one subject to the action of centrifugal force when the joint rotates and sliding ring (4, 12, 15, 21, 26) is arranged. 2. Abdichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Gleitring in an sich bekannter Weise zusätzlich von einer Feder (5) beaufschlagt ist. 2. Seal according to claim 1, characterized in that the sliding ring is additionally acted upon by a spring (5) in a manner known per se is. 3. Abdichtung nach Anspruch 2, dadurch gekennzeichnet,daß die Feder (5) von einem U-förmigen Ring (7) aus elastischem Werkstoff umgeben ist, wobei die Feder (5) auf beiden Schenkeln des U-Ringes (7) aufliegt (Fig. 1). 3. Seal according to claim 2, characterized in that the spring (5) of a U-shaped ring (7) made of elastic material is surrounded, the spring (5) rests on both legs of the U-ring (7) (Fig. 1). 4. Abdichtung nach Anspruch 1, gekennzeichnet durch zwei ineinander angeordnete Ringe (15,16), deren Berührungsflächen kegelig ausgebildet sind. 4. Sealing after Claim 1, characterized by two rings (15, 16) arranged one inside the other, whose Contact surfaces are conical. 5. Abdichtung nach Anspruch 1, gekennzeichnet durch einen federbelasteten, winkelförmigen Dichtungsring (21, 26), der in eine Nut (22) der Außenschale (3) oder in eine Nut (25) am Zapfen (1) eingreift (Fig. 5 und 6): In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 331946, 387 031; USA.-Patentschriften Nr. 2 506 447, 2 583 019; britische Patentschrift Nr. 658 249; franzöische Patentschrift Nr. 459 605.5. Seal according to claim 1, characterized by a spring-loaded, angular sealing ring (21, 26) which engages in a groove (22) of the outer shell (3) or in a groove (25) on the pin (1) (Fig. 5 and 6): Considered publications: German Patent Nos. 331 946, 387 031; U.S. Patent Nos. 2,506,447, 2,583,019; British Patent No. 658,249; French patent specification No. 459 605.
DEG20457A 1956-09-01 1956-09-01 Sealing for roller bearings of universal joint journals, especially for cardan shafts Pending DE1080368B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEG20457A DE1080368B (en) 1956-09-01 1956-09-01 Sealing for roller bearings of universal joint journals, especially for cardan shafts
FR1161938D FR1161938A (en) 1956-09-01 1956-12-03 Seal for universal joint roller bearings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG20457A DE1080368B (en) 1956-09-01 1956-09-01 Sealing for roller bearings of universal joint journals, especially for cardan shafts
DE1161938X 1956-09-01

Publications (1)

Publication Number Publication Date
DE1080368B true DE1080368B (en) 1960-04-21

Family

ID=31189243

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG20457A Pending DE1080368B (en) 1956-09-01 1956-09-01 Sealing for roller bearings of universal joint journals, especially for cardan shafts

Country Status (2)

Country Link
DE (1) DE1080368B (en)
FR (1) FR1161938A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048846A1 (en) * 1980-12-23 1982-07-01 Uni-Cardan Ag, 5200 Siegburg "UNIVERSAL JOINT"
EP0321076A1 (en) * 1987-12-07 1989-06-21 Dana Corporation Seal and dust guard assembly for a universal joint trunnion

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116195A1 (en) * 1983-02-11 1984-08-22 Rhp Group Plc Improvements in sealed bearings
CN105020280A (en) * 2015-07-15 2015-11-04 兴化市万佳机械有限公司 Double-cardan universal joint

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR459605A (en) * 1912-06-25 1913-11-10 Schweinfurter Praecisions Kugel Lager Werke Fichte Protective device for ball bearings
DE331946C (en) * 1918-11-15 1921-01-18 Atlas Maschb G M B H Seal for bearings
DE387031C (en) * 1922-10-25 1923-12-22 Norma Cie G M B H Seal for bearings
US2506447A (en) * 1947-04-04 1950-05-02 Garlock Packing Co Sealing device
GB658249A (en) * 1946-10-04 1951-10-03 Crane Packing Co Improvements in or relating to fluid-sealing devices for effecting a seal between relatively movable elements
US2583019A (en) * 1947-09-06 1952-01-22 Saywell Associates Sealing assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR459605A (en) * 1912-06-25 1913-11-10 Schweinfurter Praecisions Kugel Lager Werke Fichte Protective device for ball bearings
DE331946C (en) * 1918-11-15 1921-01-18 Atlas Maschb G M B H Seal for bearings
DE387031C (en) * 1922-10-25 1923-12-22 Norma Cie G M B H Seal for bearings
GB658249A (en) * 1946-10-04 1951-10-03 Crane Packing Co Improvements in or relating to fluid-sealing devices for effecting a seal between relatively movable elements
US2506447A (en) * 1947-04-04 1950-05-02 Garlock Packing Co Sealing device
US2583019A (en) * 1947-09-06 1952-01-22 Saywell Associates Sealing assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048846A1 (en) * 1980-12-23 1982-07-01 Uni-Cardan Ag, 5200 Siegburg "UNIVERSAL JOINT"
EP0321076A1 (en) * 1987-12-07 1989-06-21 Dana Corporation Seal and dust guard assembly for a universal joint trunnion

Also Published As

Publication number Publication date
FR1161938A (en) 1958-09-08

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