WO2010020223A1 - Palier étanché, dispositif d'étanchéité pour étancher des paliers, et procédé d'étanchéification de paliers - Google Patents

Palier étanché, dispositif d'étanchéité pour étancher des paliers, et procédé d'étanchéification de paliers Download PDF

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Publication number
WO2010020223A1
WO2010020223A1 PCT/DE2009/001151 DE2009001151W WO2010020223A1 WO 2010020223 A1 WO2010020223 A1 WO 2010020223A1 DE 2009001151 W DE2009001151 W DE 2009001151W WO 2010020223 A1 WO2010020223 A1 WO 2010020223A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
ring
sealing
stop
peripheral edge
Prior art date
Application number
PCT/DE2009/001151
Other languages
German (de)
English (en)
Inventor
Andreas Krome
Original Assignee
Schaeffler Kg
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 Schaeffler Kg filed Critical Schaeffler Kg
Priority to EP09776094A priority Critical patent/EP2321544A1/fr
Publication of WO2010020223A1 publication Critical patent/WO2010020223A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • 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
    • F16C33/74—Sealings of sliding-contact bearings

Definitions

  • the present invention relates to a sealed bearing, a sealing device for sealing bearings and a method for sealing bearings.
  • the present invention is applicable to different types of bearings, in particular, it is suitable for spherical bearings, such as, for example, spherical bearings.
  • spherical bearings such as, for example, spherical bearings.
  • Bearings with, for example, spherical bearings must in most cases be sealed, so that no contamination can penetrate the bearings from the outside.
  • Such impurities can z. Water, steam, dusts, ice, snow, lubricants (oils, greases, solid lubricants) and paints.
  • the impurities accelerate the corrosion of the bearing components, contaminate or flush out the lubricant or sliding material (in maintenance-free bearings), and deposit abrasive particles in the bearings Gleitzonen of the bearing, which increases the bearing wear and thus reduces the bearing life.
  • maintenance-free spherical plain bearings must not be contaminated by greases, oils or other lubricants, as otherwise a drastic reduction in service life may result. The effectiveness of the seal can therefore decisively influence the service life of the bearings.
  • a felt gasket is generally used where there are only slight misalignments of the shaft. For larger misalignments, the contact surfaces for the seal must be wavy. This type of seal is suitable for temperatures up to 100 0 C.
  • V-shaped seals An effective and at the same time simple sealing results in plastic V-shaped seals. They point depending on the material good resistance to wear, aging, oil and grease and can be used mostly at temperatures between -40 0 C and 100 0 C.
  • the V-ring seals are easy to install and allow relatively large misalignment of the shaft.
  • the V-ring has a rubber-elastic ring body and a thin sealing lip, which rests axially under slight pressure on the counter surface.
  • radial shaft seals are used, which usually have a metallic stiffened or taken in a metal sleeve sealing sleeve made of synthetic rubber. These are used primarily for high sealing requirements.
  • Oil seals with outwardly directed sealing lip installed.
  • seals made of rubber or plastic generally have a short life. The best sealing effect is achieved in such cases by periodic relubrication. The fat bulge forming on the end faces of the bearing keeps contaminants away from the bearing. However, this periodic required relubrication represents a considerable maintenance and is therefore undesirable.
  • bellows are joint bearing with integrated folding bellows.
  • This is a radial spherical plain bearing with a widened inner ring.
  • the bellows runs in the outer grooves of the widened inner ring.
  • the bellows is stabilized by a sheet metal reinforcement.
  • a unit of two bellows and a spherical plain bearing is held outside in the housing by snap rings or housing shoulders.
  • the disadvantage of this design is that special bearings are required.
  • the corrosion resistance of the inner ring is reduced by a heat treatment during curing. Elaborate grinding operations are also required in the inner ring production and additional support rings for the axial fixation of the inner ring.
  • a further solution of the prior art provides that outside of the end faces of an outer ring, a bellows is vulcanized. The bellows runs on a widened inner ring in a groove, as in the aforementioned embodiment.
  • a disadvantage here is that high temperatures are required for scorching, which can damage the bond between the sliding fabric and the outer ring.
  • the corrosion protection of the inner ring is impaired by the heat treatment or the choice of material.
  • the sealing device for a bearing comprising a bearing outer ring with a bearing outer ring outer surface for installation in a bearing housing and also a bearing inner ring with a central Receiving for a component to be stored, comprises a first stop ring with a receptacle, which is arranged coaxially with the bearing inner ring, and a first bellows-shaped sealing sleeve, the sealing with a first peripheral edge on the first stop ring and with a second peripheral edge on the bearing outer ring attachable.
  • a method according to the invention for sealing a bearing provides the following method steps:
  • Peripheral edge comes to rest on the first stop ring and with a second peripheral edge on the bearing outer ring and the bearing housing;
  • a bearing seal is provided which is sealed by means of a sealing collar or a bellows or rolling bellows with a run-on ring adapted to the bellows or rolling-bellows joint-bearing combination.
  • an additional tensioning element made of metal, rubber or plastic, e.g. (Round) Wire ring, spiral ring, coil spring or rubber ring used to ensure the preload of the bellows on the inner diameter for a long time and thus ensure a lasting fit on the thrust ring.
  • the bellows is received outside in the bore of the housing, or in a joint bearing of the joint head, and held axially by a bore shoulder or a snap ring.
  • the bellows runs on the inside of the starting ring of a designated zone (eg groove or groove, if axial positioning or fixing of the bellows is required).
  • the groove has the required groove contour and groove surface in order to achieve an optimum sealing effect, to allow the bellows to slip on the inner ring from certain pivoting angles and to ensure the distance between the bellows and the surrounding construction up to the maximum tilt angle.
  • an O-ring groove can still be inserted into the inner race and the bore can also be sealed by an inserted O-ring.
  • the width of the run-up ring is advantageously chosen so that even at the maximum tilt angle, no contact between the bulging bellows and the environment arises.
  • the invention can be used for different types of bearings, for example for radial spherical plain bearings, axial spherical plain bearings, angular contact bearings, axial spherical roller bearings, radial spherical roller bearings or barrel roller bearings.
  • the use in spherical roller bearings and roller bearings should be limited to applications with slow rotations or alternating pivoting / Tilting movements are restricted.
  • the bearing according to the invention, the sealing unit according to the invention and the method according to the invention can be used particularly advantageously in spherical bearings, since the movement in the sliding zone here is typically not large or not high-frequency.
  • the run-up ring can be made of soft stainless steel that reaches a corrosion protector over 1,000 hours according to a salt spray test. This represents a further advantage, since in the integration of the sealing ring groove in the inner ring, a curable material should be used. This curable material has i. d. R. a reduced corrosion protection.
  • the bearing according to the invention is characterized in that the sealing collars abut the bearing housing.
  • the bearing according to the invention is characterized in that the bearing inner ring and / or the bearing outer ring is made of a bearing steel.
  • the bearing according to the invention is characterized in that the first stop ring and / or second stop ring made of a corrosion-resistant material, in particular plastic, brass, aluminum, V2A steel or V4A steel.
  • the bearing according to the invention characterized in that the first sealing collar and / or the second sealing collar as material NBR, EPDM or chloroprene rubber having a steel, carbon fiber, glass fiber or Aramidmaschinearmtechnik.
  • the bearing according to the invention is characterized in that between the first stop ring and the bearing inner ring and / or the second stop ring and the bearing inner ring a sealing paste for sealing the respective stop ring is provided with the bearing inner ring.
  • the bearing according to the invention is characterized in that an axial sealing ring is provided adjacent to the first starting ring and the bearing inner ring and / or the second stop ring and the bearing inner ring for sealing the bearing inner ring with the stop rings.
  • the bearing according to the invention is characterized in that in each case a radial sealing ring is provided adjacent to a groove in the receptacle of the first stop ring and / or a groove in the receptacle of the second stop ring.
  • the bearing according to the invention is characterized in that an outer groove is provided on the first stop ring and / or an outer groove is provided on the second stop ring.
  • the sealing device according to the invention is characterized in that in each case a groove in the receptacle of the first stop ring and / or a groove in the receptacle of the second stop ring are provided for receiving a radial sealing ring.
  • the sealing device according to the invention is characterized in that the sealing collar is sealingly attachable to the bearing housing.
  • An embodiment of the method according to the invention is characterized in that the bearing is a radial spherical plain bearing, an axial spherical plain bearing, an angular plain bearing, an axial spherical roller bearing, a radial spherical roller bearing or a roller bearing.
  • a further embodiment of the method according to the invention is characterized in that the bearing outer ring of the radial spherical plain bearing has a spherical bearing outer ring inner surface, and the inner bearing ring of the radial spherical plain bearing has a spherical bearing inner ring outer surface with which the bearing inner ring abuts against the inner surface of the bearing outer ring.
  • a further embodiment of the method according to the invention is characterized in that in a method step (y) which follows the method step (b) or method step (c), the first sealing collar is fixed to the bearing housing.
  • a further embodiment of the method according to the invention is characterized in that in a method step (z) which follows the method step (c) or the method step (y), the second sealing collar is fixed to the bearing housing.
  • a further embodiment of the method according to the invention is characterized in that the sealing collars are arranged sealingly with the second peripheral edge against the bearing housing and / or axially sealing against a housing shoulder and / or are arranged axially sealing against a snap ring.
  • a further embodiment of the method according to the invention is characterized in that in a method step 1, which is carried out before method step (b), sealing paste is applied to the bearing inner ring and / or the contact rings.
  • the bearing seal according to the invention offers a number of advantages: A retrofittable very good sealing of a standard bearing is made possible. Furthermore, a complete sealing unit with contact surface and spacers is provided. There is an improved corrosion protection of the outer metal parts. With spherical bearings, there is no influence on the corrosion protection due to the required hardening processes of the sliding fabric of the spherical plain bearings. The ring itself can be easily made of soft material. A hardening of the thrust ring is not required. The entire bearing can be easily assembled and disassembled. The life of the sealed bearing is increased by the complete seal. Furthermore, a separate exchange of seal or bearing is possible. The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying figure.
  • Figure 1 is a schematic sectional view of a sealed radial joint bearing according to one embodiment of the invention.
  • a sealed bearing according to the invention namely a radial spherical plain bearing 10 according to this exemplary embodiment, has a bearing inner ring 30 and a bearing outer ring 20.
  • the bearing inner ring 30 has a spherical bearing inner ring outer surface 36, on which a spherical bearing outer ring inner surface 26 of the bearing outer ring 20 is pivotably arranged.
  • the bearing outer ring 20 in this embodiment is fixed to a bearing outer ring outer surface 24 in a bearing housing 5, e.g. attached to a condyle. Thereby, the condyle 5 can be pivoted together with the loader outer ring 20 in the plane of the paper relative to the bearing inner ring 30.
  • a first stop ring 50 and a second stop ring 55 are arranged on both sides with a receptacle 34, which is centrally introduced as an inner bore in the bearing inner ring 30, axially aligned with the bearing inner ring 30.
  • the thrust rings 50, 55 have according to the bearing inner ring 30 cylindrical receptacles 52, 58, so that formed by the receptacle 34 of the bearing inner ring 30, the receptacle 52 of the first stop ring 50 and the receptacle 58 of the second stop ring 55 an equal formed of three sections. Achsig through hole results.
  • the thrust rings 50, 55 each have an outer groove 54, 57 on their outer circumference.
  • the thrust rings 50, 55 are sealed against the bearing inner ring 30 by a sealing paste 90 between the thrust rings 50, 55 and the bearing inner ring 30.
  • Sealing paste 90 instead of Sealing paste 90 according to the invention as axial sealing rings 95 between the stop rings 50, 55 and the bearing inner ring 30 can be used.
  • the thrust rings 50, 55 are connected by grooves 54, 57 in their outer circumferences starting from sealing collars 70, 80 with the bearing outer ring 20 axially and the bearing housing 5 radially inwardly sealed.
  • the first sealing collar 70 shown on the left runs from a first peripheral edge 72 on the groove 54 of the first stop ring 50 to a second peripheral edge 73 on the housing shoulder 6 in the bearing housing 5.
  • the outer bearing ring 20 fixes the first sealing collar 70
  • the second sealing collar 80 has a first peripheral edge 83 adjacent to the first stop ring 50 and a second peripheral edge 83 adjacent to the bearing outer ring 20 and the bearing housing 5 on.
  • the second sealing collar 80 is fixed on the other axial side of the bearing outer ring 20 by a protruding into the bearing housing 5 snap ring 75 against the bearing outer ring 20.
  • Both sealing collars 70, 80 are fixed by means of wire rings 74, 84 in the outer grooves 54, 57 on the stop rings 50, 55. Further, in the receptacles 52, 58 of the stop rings 50, 55 each have a groove 53, 56 are provided. In the grooves 53, 56 radial sealing rings 97 are arranged. These are both on the respective stop ring 50, 55 and on a through the receptacle 34 in the bearing inner ring 30, receptacle 52 in the first stop ring 50 and receptacle 58 in the second stop ring 55 extending member 40 at. This prevents contaminants from penetrating axially between the component 40 and the starting rings 50, 55.
  • first stop ring 50 second stop ring 55, first sealing collar 70, second sealing collar 80, first wire ring 74, second wire ring 84, sealing paste 90, radial sealing rings
  • the bearing outer ring 20 Due to the construction according to the invention according to the embodiment of the bearing outer ring 20 is sealed on both sides by the sealing collars 70, 80 against the stop rings 50, 55. Since the stop rings 50, 55 bear tightly against the bearing inner ring 30, thus the bearing inner ring 30 is sealed against the bearing outer ring 20. Impurities, such. As dust or water can not penetrate into the camp. At the same time, the bearing outer ring 20 remains pivotably arranged relative to the bearing inner ring 30, since the sealing collars are elastic. For improved strength, the sealing collars 70, 80 preferably have a steel reinforcement.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention porte sur un palier étanché (10), avec une bague extérieure de palier (20), laquelle présente une surface extérieure (24) de bague extérieure de palier, pour une insertion dans un carter de palier (5), avec une bague intérieure de palier (30) qui présente un logement central (34) pour un composant (40) à supporter, avec une première bague de butée (50), qui comprend un évidement (52), et qui est disposée de façon à avoir le même axe que la bague intérieure de palier (30), avec un premier manchon d'étanchéité (70) en forme de soufflet, manchon qui, par un premier bord périphérique (72), s'appuie contre la première bague de butée (50), et par un deuxième bord périphérique (73) s'appuie contre la bague extérieure de palier (20).
PCT/DE2009/001151 2008-08-16 2009-08-12 Palier étanché, dispositif d'étanchéité pour étancher des paliers, et procédé d'étanchéification de paliers WO2010020223A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09776094A EP2321544A1 (fr) 2008-08-16 2009-08-12 Palier étanché, dispositif d'étanchéité pour étancher des paliers, et procédé d'étanchéification de paliers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008037990.5 2008-08-16
DE102008037990.5A DE102008037990B4 (de) 2008-08-16 2008-08-16 Abgedichtetes Lager

Publications (1)

Publication Number Publication Date
WO2010020223A1 true WO2010020223A1 (fr) 2010-02-25

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Application Number Title Priority Date Filing Date
PCT/DE2009/001151 WO2010020223A1 (fr) 2008-08-16 2009-08-12 Palier étanché, dispositif d'étanchéité pour étancher des paliers, et procédé d'étanchéification de paliers

Country Status (3)

Country Link
EP (1) EP2321544A1 (fr)
DE (1) DE102008037990B4 (fr)
WO (1) WO2010020223A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212323A1 (de) * 2016-07-06 2018-01-11 Zf Friedrichshafen Ag Dichtungsanordnung
CN108223570A (zh) * 2018-02-09 2018-06-29 浙江长盛塑料轴承技术有限公司 一种消音避震关节轴承
CN108266535A (zh) * 2018-02-02 2018-07-10 中国北方车辆研究所 一种转向球头销用防尘套
US10344802B1 (en) * 2018-03-16 2019-07-09 Aktiebolaget Skf Seal assembly for spherical plain bearing
US10655733B2 (en) 2016-11-18 2020-05-19 Schaublin Sa Elastomeric seal having impact protecting protrusions
CN114104085A (zh) * 2021-11-25 2022-03-01 重汽(重庆)轻型汽车有限公司 一种汽车转向传动轴的防尘罩结构
WO2024018059A1 (fr) * 2022-07-21 2024-01-25 Zettl Gmbh Mécanisme de support réglable en hauteur pour une unité de support d'un système de support

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9316257B2 (en) 2011-04-01 2016-04-19 Roller Bearing Company Of America, Inc. Spherical bearing with sealing member member
US9958011B2 (en) 2011-04-01 2018-05-01 Roller Bearing Company Of America, Inc. Bearing assembly having surface protrusions and a seal
DE102011051191A1 (de) * 2011-06-20 2012-12-20 Wheelabrator Group Gmbh Lagervorrichtung für Förderschneckenwellen
CN102758844A (zh) * 2012-07-23 2012-10-31 江苏省如高高压电器有限公司 一种隔离开关用关节轴承
US9562567B2 (en) 2014-02-07 2017-02-07 Roller Bearing Company Of America, Inc. Spherical bearing with axially compressed annular seal
CN106122472B (zh) * 2016-06-28 2018-08-21 东台市华阳玻纤有限责任公司 一种改性碳纤维密封基材
DE102020119948B4 (de) 2020-07-29 2022-03-31 Schaeffler Technologies AG & Co. KG Pendelrollenlager

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DE3738111A1 (de) * 1987-11-10 1989-05-18 Skf Gmbh Abgedichtetes waelzlager
JPH06200930A (ja) * 1992-12-28 1994-07-19 Koyo Seiko Co Ltd 球面すべり軸受
DE10160990A1 (de) * 2001-12-10 2003-06-26 Sachsenring Fahrzeugtechnik Gm Gelenk mit Gelenklagerhülse und Verfahren zu dessen Herstellung
WO2006028452A2 (fr) * 2004-09-03 2006-03-16 Oshkosh Truck Corporation Articulation

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DE1250205B (fr) * 1965-05-24
DE1937933U (de) * 1965-12-14 1966-05-05 Ehrenreich & Cie A Druckring fuer kugelgelenke.
DE202004017767U1 (de) * 2004-11-17 2005-02-10 Ask-Kugellagerfabrik Artur Seyfert Gmbh Dichtung für Lager, insbesondere für Gelenklager oder Gelenkköpfe

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DE3738111A1 (de) * 1987-11-10 1989-05-18 Skf Gmbh Abgedichtetes waelzlager
JPH06200930A (ja) * 1992-12-28 1994-07-19 Koyo Seiko Co Ltd 球面すべり軸受
DE10160990A1 (de) * 2001-12-10 2003-06-26 Sachsenring Fahrzeugtechnik Gm Gelenk mit Gelenklagerhülse und Verfahren zu dessen Herstellung
WO2006028452A2 (fr) * 2004-09-03 2006-03-16 Oshkosh Truck Corporation Articulation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016212323A1 (de) * 2016-07-06 2018-01-11 Zf Friedrichshafen Ag Dichtungsanordnung
US10655733B2 (en) 2016-11-18 2020-05-19 Schaublin Sa Elastomeric seal having impact protecting protrusions
CN108266535A (zh) * 2018-02-02 2018-07-10 中国北方车辆研究所 一种转向球头销用防尘套
CN108266535B (zh) * 2018-02-02 2023-08-22 中国北方车辆研究所 一种转向球头销用防尘套
CN108223570A (zh) * 2018-02-09 2018-06-29 浙江长盛塑料轴承技术有限公司 一种消音避震关节轴承
US10344802B1 (en) * 2018-03-16 2019-07-09 Aktiebolaget Skf Seal assembly for spherical plain bearing
CN110273917A (zh) * 2018-03-16 2019-09-24 斯凯孚公司 用于球面滑动轴承的密封组件
CN114104085A (zh) * 2021-11-25 2022-03-01 重汽(重庆)轻型汽车有限公司 一种汽车转向传动轴的防尘罩结构
CN114104085B (zh) * 2021-11-25 2024-03-29 重汽(重庆)轻型汽车有限公司 一种汽车转向传动轴的防尘罩结构
WO2024018059A1 (fr) * 2022-07-21 2024-01-25 Zettl Gmbh Mécanisme de support réglable en hauteur pour une unité de support d'un système de support

Also Published As

Publication number Publication date
DE102008037990B4 (de) 2018-06-21
DE102008037990A1 (de) 2010-02-18
EP2321544A1 (fr) 2011-05-18

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