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WO2010031646A1 - Galet de roulement doté d'un roulement à rouleaux cylindriques - Google Patents

Galet de roulement doté d'un roulement à rouleaux cylindriques Download PDF

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Publication number
WO2010031646A1
WO2010031646A1 PCT/EP2009/060496 EP2009060496W WO2010031646A1 WO 2010031646 A1 WO2010031646 A1 WO 2010031646A1 EP 2009060496 W EP2009060496 W EP 2009060496W WO 2010031646 A1 WO2010031646 A1 WO 2010031646A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
roller
outer ring
cylindrical
rollers
Prior art date
Application number
PCT/EP2009/060496
Other languages
German (de)
English (en)
Inventor
Thomas Dittenhöfer
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
Publication of WO2010031646A1 publication Critical patent/WO2010031646A1/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
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings

Definitions

  • the invention relates to a roller with cylindrical roller bearing, comprising an inner ring or the like, an outer ring or the like and at least one arranged in the annular gap between the inner ring and outer ring cylindrical roller row.
  • inner ring or the like or “outer ring or the like” should also be taken into account constructive embodiments in which inner raceways are formed, for example, directly on a shaft or a pin and outer raceways, for example, on the inner circumference of a housing bore.
  • Casters are used in numerous technical areas and in various designs depending on the respective application. They are generally preferably radially loaded, but can also be exposed to axial loads, in particular when they are used as cam rollers.
  • rollers with cylindrical roller bearings can be found in printing press construction, where it is assumed that the axial forces occurring can be ⁇ 10% of the radial forces.
  • rollers with roller axes parallel to the bearing axis are used, in which occurring axial forces are taken up in each case arranged on the inner ring or on the outer ring Borden what but there leads to increased friction.
  • curved rollers are in entangled or tilted running of the rollers with respect to the curved path on the Outer ring acting axial forces generated, which are transmitted from the cylindrical rollers on the respective thrust shelves.
  • the invention therefore based on the object to provide a roller of the type mentioned in the preamble of claim 1, in which prevents a kinematically unfavorable tilting of the rolling elements and thus a high level of protection against wear as well as early failure is achievable and the over it It is also simple and inexpensive to manufacture.
  • the invention is based on the finding that in a designed as a tapered roller bearing cylindrical roller bearing axial forces in the axial direction of the bearing, in which the annular gap tends to be absorbed by the raceways, so that only for a structurally simple as possible leadership of the cylindrical rollers for the axially unencumbered case must be taken care of.
  • the invention is therefore based on a roller with cylindrical roller bearing comprising an inner ring or the like, an outer ring or the like and at least one arranged in the annular gap between the inner ring and outer ring cylindrical roller row. It is provided according to the invention that the cylindrical roller bearing is designed as a tapered roller bearing inclined to the bearing axis roller axes, and that the cylindrical rollers of a row of rollers each guided at one end by a arranged on the outer ring inboard and at the other end by a arranged in the annular thrust washer with axia- ling game are.
  • the board on the outer ring serves exclusively to guide the rolling elements, while acting on the outer ring axial forces are absorbed by the mutually parallel raceways. A kinematic unfavorable tilting of the cylindrical rollers is prevented, so that a higher level of protection against wear and early failure can be achieved. Another advantage is that in this arrangement, a good use of space is given, so that longer rolling elements and thus a higher load capacity can be achieved, and more space for the fat volume in the camp is available.
  • the arrangement of the board or the ribs on the outer ring is manufacturing technology easier than on the inner ring, especially when serving as an inner ring, a shaft or a pin, as mentioned earlier. Another advantage
  • This arrangement in particular, when the board is assigned to the radially outer end of the cylindrical rollers, is that at higher speeds, the cylindrical rollers are pressed by centrifugal forces to the outside and thus to the inrun.
  • the thrust washer has the task to support the start of the cylindrical rollers on board, so that always serves the board as a primary guide. It can be made thin and thus space-saving, so that, for example, space for receiving grease remains.
  • the tapered roller bearing is formed in two rows, the two rows of rollers each to the bearing outer side through a arranged on the outer ring inner board and the bearing inside through one between the rows of rollers arranged, common thrust washer are guided.
  • the roller axes of the two roller rows are inclined relative to each other, so that each of the roller rows is provided for receiving an axial force in one of the two bearing axis directions.
  • For the guidance of the cylindrical rollers axially outward shelves are again provided, while the guide to the bearing inside a single, two rows of rollers common thrust washer is sufficient.
  • the thrust washer can be held in position by the cylindrical rollers themselves, for example, by being in contact with the rolling bodies of the two rows of rolling elements at the ends. According to a preferred constructive embodiment of the invention, however, the thrust washer is centered on the outer ring, i. the cylindrical rollers are guided both axially outward and inward in the outer ring.
  • the thrust washer can also serve to keep the cylindrical rollers at a distance from each other in addition to the described guide task.
  • the thrust washer is formed according to a further embodiment of the invention as a respective assigned rows of rollers receiving cage. There If the cage does not have to guide the cylindrical rollers axially outward, it is sufficient if the cage is designed in each case as a comb cage open to the associated board. In this way, he can perceive its leadership function towards the bearing inside, while the leadership is made to the outside of the camp from the Borden.
  • the bearing outer ring is preferably formed in one piece and has two raceways for the two rows of rollers.
  • the inner ring is formed in two parts, wherein each partial inner ring has a raceway for one of the rows of rollers.
  • the two rows of rollers form a so-called O-arrangement, as will be explained in more detail with reference to an exemplary embodiment.
  • Figure 2 shows a longitudinal section through a roller with double row cylindrical roller bearing and designed as a cage thrust washer
  • Figure 3 shows the arrangement of Figure 2 in a partially sectioned, perspective view
  • Figure 4 shows a roller similar to Figure 2, but with split inner ring. Detailed description of the drawings
  • the roller 2 shown in Figure 1 comprises a split inner ring which is formed in the present embodiment on the one hand by a formed on the outer circumference of the roller journal 4 raceway 6 and on the other hand by a separate part inner ring 8, which has a raceway 10.
  • the roller 2 further comprises a one-piece outer ring 12, which has two raceways 14, 16.
  • two cylindrical roller rows 18 and 20 are arranged, which formed as a tapered roller bearing with the bearing axis 22 inclined roller axes 24 and 26 respectively.
  • the two tapered roller bearings form an O arrangement in which the axes 28 and 30 of a cylindrical roller row 18 and 20 perpendicular to the roller axes 24, 26 intersect on the bearing axis 22 and form a type O with each other.
  • outer ring 12 On the outer ring 12 are two cylindrical roller rows axially outwardly leading shelves 32 and 34 is formed, and between the cylindrical roller rows 18, 20 a centered in the outer ring 12 thrust washer 36 is arranged, which leads the cylindrical roller rows 18, 20 inward with play.
  • the roller 2 shown in Figure 1 may be formed as a permanently lubricated roller, the annular gap between the inner ring and outer ring 12 can receive a grease.
  • the annular gap is sealed to the outside in a conventional manner by sealing rings 38, 40.
  • Figure 2 and Figure 3 show an arrangement similar to Figure 1, but in contrast to this arranged between the cylindrical roller rows 42 and 44 thrust washer 46 is formed as a double comb cage, as can be seen in particular from Figure 3.
  • This comb cage 46 guides the cylindrical rollers of the cylindrical roller rows 42, 44 axially inward, while the guidance of the cylindrical roller rows 42, 44 is secured externally by the rims 48 and 50, respectively. is presented.
  • Figure 4 shows an arrangement approximately according to the figure 2, but with no roller pin is provided and the inner ring is formed by two separate partial inner rings 52, 54, which are for example mounted on a shaft, not shown.
  • Each of the partial inner rings 52, 54 carries a race 56 or 58 for one of the two cylindrical roller rows.
  • the outer ring 60 is in one piece as in the previously described embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un galet de roulement (2) doté d'un roulement à rouleaux cylindriques, comprenant une bague interne ou similaire, une bague externe (12) ou similaire et au moins une rangée de rouleaux cylindriques intercalée dans la fente annulaire séparant la bague interne de la bague externe. Le but de l'invention est de permettre l'absorption d'une force axiale typique notamment dans le cas de rouleaux d'appui ou de rouleaux de guidage. A cet effet, le roulement à rouleaux cylindriques est conçu sous la forme d'un roulement à rouleaux coniques doté d'axes de rouleaux (24, 26) inclinés vers l'axe de palier (22), les rouleaux cylindriques d'une rangée de cylindres (18, 20) étant guidés, respectivement avec un jeu axial, à une extrémité, par un bord interne (32, 34) de la bague externe et, à l'autre extrémité, par une rondelle de frottement (36) située dans la fente annulaire séparant la bague interne de la bague externe. La force axiale est exclusivement absorbée par les chemins de roulement (6, 10; 14, 16), tandis que le bord et la rondelle de frottement servent uniquement au guidage axial des rouleaux cylindriques à l'état exempt de charge.
PCT/EP2009/060496 2008-09-18 2009-08-13 Galet de roulement doté d'un roulement à rouleaux cylindriques WO2010031646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008047819.9 2008-09-18
DE102008047819A DE102008047819A1 (de) 2008-09-18 2008-09-18 Laufrolle mit Zylinderrollenlagerung

Publications (1)

Publication Number Publication Date
WO2010031646A1 true WO2010031646A1 (fr) 2010-03-25

Family

ID=41647251

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/060496 WO2010031646A1 (fr) 2008-09-18 2009-08-13 Galet de roulement doté d'un roulement à rouleaux cylindriques

Country Status (2)

Country Link
DE (1) DE102008047819A1 (fr)
WO (1) WO2010031646A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494519A (zh) * 2021-07-28 2021-10-12 江苏万达特种轴承有限公司 一种agv脚轮使用的四方形转向轴承及其加工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013212989B4 (de) 2013-07-03 2015-10-08 Aktiebolaget Skf Maschinenanordnung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2055714A (en) * 1935-11-14 1936-09-29 Timken Roller Bearing Co Roller bearing
US2098683A (en) * 1932-10-06 1937-11-09 Harry E Wise Bearing
DE9300488U1 (de) * 1992-01-16 1993-03-18 Nadella Cuscinetti S.P.A., Milano Losbolzen mit kegelförmigen Wälzkörpern
DE19505740A1 (de) * 1995-02-20 1996-08-22 Schaeffler Waelzlager Kg Kurvenrolle
EP1837536A2 (fr) * 2006-03-21 2007-09-26 Schaeffler KG Roulement à rouleaux à contact oblique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1283714A (en) 1916-07-27 1918-11-05 Skf Svenska Kullagerfab Ab Roller-bearing.
FR515612A (fr) * 1918-10-17 1921-04-05 Skf Svenska Kullagerfab Ab Coussinets à rouleaux coniques
DE594245C (de) * 1931-07-29 1934-03-14 Sven Gustaf Wingquist Dr Doppelreihiges selbsteinstellendes Rollenlager
GB640329A (en) * 1947-05-19 1950-07-19 Timken Roller Bearing Co Improvements in or relating to double row roller bearings
DE19937660A1 (de) 1999-08-10 2001-02-15 Schaeffler Waelzlager Ohg Mehrreihiges Schräglager
DE102004026457A1 (de) * 2004-05-29 2005-12-22 Fag Kugelfischer Ag & Co. Ohg Radlagereinheit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2098683A (en) * 1932-10-06 1937-11-09 Harry E Wise Bearing
US2055714A (en) * 1935-11-14 1936-09-29 Timken Roller Bearing Co Roller bearing
DE9300488U1 (de) * 1992-01-16 1993-03-18 Nadella Cuscinetti S.P.A., Milano Losbolzen mit kegelförmigen Wälzkörpern
DE19505740A1 (de) * 1995-02-20 1996-08-22 Schaeffler Waelzlager Kg Kurvenrolle
EP1837536A2 (fr) * 2006-03-21 2007-09-26 Schaeffler KG Roulement à rouleaux à contact oblique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113494519A (zh) * 2021-07-28 2021-10-12 江苏万达特种轴承有限公司 一种agv脚轮使用的四方形转向轴承及其加工方法

Also Published As

Publication number Publication date
DE102008047819A1 (de) 2010-03-25

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