WO2009143804A2 - Ensemble de paliers pour un arbre à guidage axial et radial - Google Patents

Ensemble de paliers pour un arbre à guidage axial et radial Download PDF

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Publication number
WO2009143804A2
WO2009143804A2 PCT/DE2009/000692 DE2009000692W WO2009143804A2 WO 2009143804 A2 WO2009143804 A2 WO 2009143804A2 DE 2009000692 W DE2009000692 W DE 2009000692W WO 2009143804 A2 WO2009143804 A2 WO 2009143804A2
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
ball bearing
cylindrical roller
set according
bearing set
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
Application number
PCT/DE2009/000692
Other languages
German (de)
English (en)
Other versions
WO2009143804A3 (fr
Inventor
Jan Georgi
Jens Krohns
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.)
IHO Holding GmbH and Co KG
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 WO2009143804A2 publication Critical patent/WO2009143804A2/fr
Publication of WO2009143804A3 publication Critical patent/WO2009143804A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/49—Bearings with both balls and 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 bearing set for an axially and radially leading shaft, an impeller or the like, consisting of an operational axial forces receiving ball bearing and an occurring back pressure forces receiving, designed as a support bearing cylindrical roller bearings.
  • DE 10 2005 054 705 A1 has proposed a bearing set for a shaft which is axially tight and precisely to be guided, an impeller or the like for machine units, in which an operating pressure-bearing angular contact ball bearing and an occurrence of back pressure forces, designed as a support bearing Cylindrical roller bearings are used, wherein the cylindrical roller bearing is designed as a NJ cylindrical roller bearing with two radial rims on the outer ring and arranged on the side facing away from the angular ball bearing radial flange in the ring.
  • the outer ring of the cylindrical roller bearing has a single radial board and the inner ring also has a single radial flange, wherein the set of cylindrical rollers disposed between the inner ring and the outer ring is axially bounded by the rims of the outer ring and the inner ring.
  • the invention has for its object to provide a bearing set for an axially leading shaft, an impeller or the like, for example for a transmission shaft or the rotor of a screw compressor or a rotary blower, which requires less space, thus is inexpensive and a having reduced friction.
  • the cylindrical roller bearing is shortened on the ball bearing side facing the width on the inner and outer ring, the outer or inner ring on the side facing away from the ball bearing a usual Having radial inrun, and bear the cylindrical rollers on the occurrence of a back pressure force on the front side of the outer or inner ring of the ball bearing and the inrun of the cylindrical roller bearing.
  • the ball bearing carries only axially in the main operating pressure direction, while the cylindrical roller bearing accommodates combined axial back pressure and radial load loads.
  • the function of the axial bearing facing cylindrical roller bearing board on the outer ring takes over the thrust bearing, which may be adapted to its front side on the inner and / or outer ring, optionally to an optimized board geometry. It is particularly advantageous that there is no reduction of the board height by punctures, the entire board height can thus be exploited.
  • the thrust bearing may consist of a deep groove ball bearing, which preferably has an increased radial clearance in order to increase the load capacity.
  • the thrust bearing may consist of an angular contact ball bearing, which is particularly indicated when higher axial loads occur.
  • the angular contact ball bearing can form an X or O arrangement with the NJ cylindrical roller bearing.
  • a further cost reduction can be achieved if the inner or the outer rings of the ball bearing and the cylindrical roller bearing consist of one piece contiguous, as this can avoid inaccuracies of the cumulative tolerances between the inner rings or the outer rings.
  • the axial clearance at 0.1 mm preferably below, can be, and that the supernatant of the outer rings relative to the inner ring can be at + 0.005 mm.
  • the bearing set 1 shown in the drawing consists of an outer ring 2 of the cylindrical roller bearing with guided in a cage 4 cylindrical rollers 3 and an outer ring 5 of the ball bearing guided in a cage 7 balls 6.
  • a one-piece inner ring 8 with raceways for the balls 6 and the rollers 3 completes the bearing set.
  • the outer ring 2 of the cylindrical roller bearing is shortened on the outer ring 5 of the ball bearing side facing the board width on the outer ring, while the inner ring 8 in the region of the cylindrical roller bearing outside a conventional, radial starting board 9.
  • the ball bearing designed as an angular contact ball bearing the large axial forces in one direction, while the cylindrical roller bearing receives a lower back pressure force this axial force by the cylindrical rollers on the one hand on the front side 10 of the outer ring 5 of the angular contact ball bearing and on the other hand at the inrun 9 of the inner ring 8 im Start the area of the cylindrical roller bearing.
  • the bearing set can be easily adjusted so that the axial clearance is only 0.1 mm or less. Likewise, the supernatant of the outer rings 2, 5 relative to the inner ring 8 need only be + 0.005 mm.
  • the illustrated embodiment shows a bearing set of an angular contact ball bearings 5, 6, 7, 8 and a cylindrical roller bearing 2, 3, 4, 9, with undivided inner ring 8, however, the invention is not limited to the illustrated bearing set 1.
  • the bearing set 1 can also consist of two separate rolling bearings, a ball bearing and a cylindrical roller bearing, wherein the cylindrical roller bearing is shortened on the ball bearing side facing the width on the inner and outer ring and the outer or inner ring of the cylindrical roller bearing on the the side facing away from the ball bearing has a customary, radial stop board, so that the cylinder rollers abut the end face of the outer and / or inner ring of the ball bearing and on the run-on board of the cylindrical roller bearing upon the occurrence of a back pressure.
  • the ball bearing may consist of a simple deep groove ball bearing, if the operational axial forces are not too large, the deep groove ball bearing may have an increased radial clearance for adaptation to the operational axial forces.
  • both the X-arrangement and the O-arrangement are possible for the embodiment with an NJ cylindrical roller bearing and an angular contact ball bearing.
  • An X-arrangement or an O-arrangement is also possible with an NJ cylindrical roller bearing and a deep groove ball bearing.

Landscapes

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

Abstract

Ensemble de paliers (1) pour un arbre à guidage axial et radial, un rotor ou analogue, comportant un roulement à billes (5, 6, 7, 8) qui absorbe les forces axiales de fonctionnement et un roulement à rouleaux cylindriques (2, 3, 4, 8) qui absorbe les forces de contre-pression et qui est conçu comme palier d'appui. La face du roulement à rouleaux cylindriques (2, 3, 4, 8) orientée vers le roulement à billes (5, 6, 7, 8) est tronquée de la largeur du bord sur les chemins internes et externes (2, 8), les chemins internes et externes (2, 8) présentent, sur la face opposée au roulement à billes (5, 6, 7, 8), un bord de butée (9) radial classique, et les rouleaux cylindriques (3), sous l'effet d'une force de contre-pression, appuient contre la face frontale (10) du chemin externe et/ou interne (5,8) du roulement à billes (5, 6, 7, 8) et contre le bord de butée (9) du roulement à rouleaux cylindriques (2, 3, 4, 8).
PCT/DE2009/000692 2008-05-27 2009-05-19 Ensemble de paliers pour un arbre à guidage axial et radial Ceased WO2009143804A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810025352 DE102008025352A1 (de) 2008-05-27 2008-05-27 Lagersatz für eine axial- und radial zu führende Welle
DE102008025352.9 2008-05-27

Publications (2)

Publication Number Publication Date
WO2009143804A2 true WO2009143804A2 (fr) 2009-12-03
WO2009143804A3 WO2009143804A3 (fr) 2010-03-18

Family

ID=41253784

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/000692 Ceased WO2009143804A2 (fr) 2008-05-27 2009-05-19 Ensemble de paliers pour un arbre à guidage axial et radial

Country Status (2)

Country Link
DE (1) DE102008025352A1 (fr)
WO (1) WO2009143804A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032460A (zh) * 2012-12-28 2013-04-10 瓦房店轴承集团有限责任公司 具有大调心角的圆柱角接触组合轴承
CN105972074A (zh) * 2016-07-26 2016-09-28 成都普瑞斯数控机床有限公司 滚珠丝杠用轴承定位装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3030654A1 (fr) * 2014-12-17 2016-06-24 Skf Ab Roulement avec unite de fonction et methode d'assemblage d'un tel roulement
CN107269689A (zh) * 2017-07-31 2017-10-20 浙江天马轴承有限公司 一种适用于电梯碟形曳引机的组合轴承
BE1026119B1 (nl) * 2018-03-29 2020-01-07 Atlas Copco Airpower Nv Schroefcompressorelement en machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8014137U1 (de) * 1980-08-21 Fag Kugelfischer Georg Schaefer & Co, 8720 Schweinfurt Kompakte Lagerbaueinheit
DE1809351U (de) * 1960-01-23 1960-04-07 Duerkoppwerke Ag Vereinigtes radial-zylinderrollenlager und axial-kugellager.
US5071265A (en) * 1991-01-09 1991-12-10 Zrb Bearing, Inc. Hollow roller bearing assembly for both radial and axial loads
JP2003166627A (ja) * 2001-11-30 2003-06-13 Koyo Seiko Co Ltd ピニオン軸支持用軸受装置
JP2003294032A (ja) * 2002-04-03 2003-10-15 Koyo Seiko Co Ltd 複列転がり軸受および複列転がり軸受の組立方法
CN2703158Y (zh) * 2004-06-07 2005-06-01 郭满生 大型组合轴承
DE102005054705A1 (de) 2005-11-17 2007-05-24 Schaeffler Kg Lagersatz für Maschinenaggregate, deren Wellen axial genau zu führen sind
DE102006033777B4 (de) 2006-07-21 2014-10-23 Schaeffler Technologies Gmbh & Co. Kg Verfahren zur Montage eines Lagersatzes einer Wälzlagerung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032460A (zh) * 2012-12-28 2013-04-10 瓦房店轴承集团有限责任公司 具有大调心角的圆柱角接触组合轴承
CN105972074A (zh) * 2016-07-26 2016-09-28 成都普瑞斯数控机床有限公司 滚珠丝杠用轴承定位装置
CN105972074B (zh) * 2016-07-26 2018-05-04 成都普瑞斯数控机床有限公司 滚珠丝杠用轴承定位装置

Also Published As

Publication number Publication date
DE102008025352A1 (de) 2009-12-03
WO2009143804A3 (fr) 2010-03-18

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