WO2012150056A1 - Palier à roulement - Google Patents

Palier à roulement Download PDF

Info

Publication number
WO2012150056A1
WO2012150056A1 PCT/EP2012/053708 EP2012053708W WO2012150056A1 WO 2012150056 A1 WO2012150056 A1 WO 2012150056A1 EP 2012053708 W EP2012053708 W EP 2012053708W WO 2012150056 A1 WO2012150056 A1 WO 2012150056A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling
rollers
spherical
rolling bearing
barrel
Prior art date
Application number
PCT/EP2012/053708
Other languages
German (de)
English (en)
Inventor
Markus STÜTZLEIN
Original Assignee
Schaeffler Technologies AG & Co. 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 Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2012150056A1 publication Critical patent/WO2012150056A1/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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • 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
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii

Definitions

  • the invention relates to a rolling bearing with two sets of rolling elements, wherein for slip-free rolling contact in a load state of low load, a set of rolling elements with spherical rolling surfaces and with respect to the other set of rolling elements slightly larger diameter is formed.
  • Such a rolling bearing is known from DE 103 48 207 B4.
  • a double-row slip-free spherical roller bearing is described in which each row of rolling elements consists of balls and rollers.
  • the smallest outer diameter of the balls is made larger than the largest outer diameter of the rollers.
  • the invention is therefore based on the object in a rolling bearing of the aforementioned type on the rolling elements with spherical rolling surfaces to avoid high pressures in order to increase the life.
  • the object is solved by the features of claim 1. Summary of the invention
  • the rolling elements with spherical rolling surfaces each have at least one cavity in order to increase their elasticity in the supporting region, their elasticity can be significantly increased. In this way, significantly lower pressures are achieved in the rolling contact with the same deformation, whereby the life of the rolling bearing significantly increased and this can be used permanently, especially at high load conditions.
  • the rolling elements with spherical rolling surfaces in the non-supporting region are at least partially flattened deviating from the spherical shape.
  • at least one recess may be provided starting from the flattening and extending at least in sections in the supporting region. At the same time, the flattening serve to guide or to start the rolling elements.
  • the rolling elements are formed with spherical rolling surfaces as ball hollow rollers with flattened parallel side surfaces and a passage opening from one side surface to another.
  • the ball hollow rollers are preferably each with a central through hole, for example, a through hole executed, which forms a symmetrical to the rolling axis cavity.
  • the rolling bearing is designed as a slip-free spherical roller bearing with a set of barrel rollers and a set of hollow spherical rollers.
  • the spherical roller bearing axially adjacent two rows of running, wherein in each row of barrel rollers and ball hollow rollers are arranged alternately one behind the other.
  • an optimized ratio of slip avoidance and load capacity as well as a uniform distribution of the masses and the load in the rolling bearing is achieved.
  • the barrel and ball hollow rollers of both rows of rollers can be arranged in a common roller cage.
  • the barrel rollers are each formed with a diameter which is greater than their length.
  • barrel and ball hollow rollers are arranged such that a barrel roll of a row of a ball hollow roller of the other This enables non-slip spherical roller bearings in narrow series, which are at the same time easy to manufacture and assemble, It is also conceivable to arrange the opposite barrel and ball hollow rollers offset from one another ,
  • the barrel rollers can be performed in a simple manner by arranged between the rows of rollers guide means.
  • Such guide means may be formed, for example, as a co-rotating separate guide ring or integrally with the bearing inner ring as a so-called "mid-board".
  • FIG. 1 shows a perspective partial view of a rolling bearing according to the invention
  • FIG. 2 is a schematic partial section of the rolling bearing. Detailed description of the drawings
  • FIG. 1 shows a section of a slip-free rolling bearing according to the invention is shown, which is designed as a double-row spherical roller bearings.
  • rolling elements are guided in two rows axially next to each other.
  • Each of the two rows of rollers consists of barrel rollers 4 and ball hollow rollers, which are arranged alternately one behind the other in the circumferential direction.
  • the spherical hollow rollers have spherical rolling surfaces 1 which terminate in parallel side surfaces 3 which are flattened in a different manner than the spherical shape.
  • a cavity 2 formed by a central through-hole from one side surface 3 to the other is provided on the ball hollow rollers.
  • the spherical hollow rollers are at the spherical rolling surfaces 1 in punctiform rolling contact, while the barrel rollers 4 have a linear rolling contact.
  • the ball hollow rollers are designed with a slightly larger diameter.
  • the ball-and-roller set thus ensures slip-free operation.
  • the barrel rollers 4 come into play in the high load phase. Due to the higher load, the ball hollow rollers deform elastically until the higher stiffness having barrel rollers 4 mitbarer with their smaller diameter. Due to the through-bore, the ball-shaped hollow rollers have a significantly higher elasticity than, for example, solid balls or ball rollers. As a result, significantly less pressure is produced on the hollow ball rollers with the same insertion. In this way, the carrying capacity of the barrel rollers 4 can be better utilized.
  • Barrel rollers 4 and hollow ball rollers of both rows of rollers are arranged in a rolling element cage 5 and lie in each case obliquely opposite each other.
  • the rolling element cage 5 facing side surfaces 3 of the ball hollow rollers form contact surfaces.
  • FIG. 2 shows, in an axial partial section, the arrangement of the barrel rollers 4 and ball hollow rollers guided side by side in two rows of runs.
  • the raceway 8 is formed spherically for the rolling elements.
  • the barrel rollers 4 and the ball hollow rollers adjust themselves on the spherical raceway 8 of the bearing outer ring.
  • Bearing inner ring 7, 5 Wälz stressesmaschinefig and rolling elements can be so pivot by a few degrees from a central position to compensate for misalignment, especially the deflection of a shaft.
  • all non-bearing areas are removed from the hollow ball roller, the conventional ball shape being indicated by dashed lines, thus creating a ball flattened on both sides with parallel side surfaces 3.
  • the ball hollow roller is considerably narrower than a ball appropriate space can be saved or the ball hollow roller can be adjusted in its axial width to a predetermined space.
  • the central through hole between the side surfaces 3 along the rolling axis 9 of the ball hollow roller forms a cavity 2 open on both sides in the bearing area enclosed by the spherical rolling surfaces 1.
  • the cavity 2 increases the elasticity in the supporting area significantly.
  • the barrel rollers 4 are guided by guide means 6 on the bearing inner ring 7.
  • the guide means 6 are arranged centrally between the rows of runs and formed here by way of example as a separate guide ring.
  • the barrel rollers 4, in particular their length, and the guide ring define a spherical roller bearing space, which remains to receive the ball hollow rollers.
  • the ball hollow rollers must correspond to the curvature of the spherical Track 8 on the bearing outer ring can kinematically align without causing overlaps with the guide ring and the barrel rollers 4.
  • so-called "over-square" barrel rollers 4 are used whose diameter is greater than their length
  • spherical hollow rollers can be used whose diameter is greater than the length of the barrel rollers 4. This makes it possible to perform multi-row slip-free spherical roller bearings in particularly narrow and high series.

Landscapes

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

Abstract

L'invention concerne un palier à roulement comprenant deux jeux de corps de roulement. Pour assurer un contact de roulement sans glissement dans un état faiblement sollicité, l'un des jeux de corps de roulement présente des surfaces de roulement sphériques (1) et un diamètre légèrement supérieur à celui de l'autre jeu de corps de roulement. Selon l'invention, les corps de roulement à surfaces de roulement sphériques (1) présentent respectivement au moins une cavité (2) pour accroître leur élasticité dans la zone porteuse.
PCT/EP2012/053708 2011-05-04 2012-03-05 Palier à roulement WO2012150056A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011075249A DE102011075249A1 (de) 2011-05-04 2011-05-04 Wälzlager
DE102011075249.8 2011-05-04

Publications (1)

Publication Number Publication Date
WO2012150056A1 true WO2012150056A1 (fr) 2012-11-08

Family

ID=45808916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/053708 WO2012150056A1 (fr) 2011-05-04 2012-03-05 Palier à roulement

Country Status (2)

Country Link
DE (1) DE102011075249A1 (fr)
WO (1) WO2012150056A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107358011A (zh) * 2017-09-12 2017-11-17 大连交通大学 基于圆柱滚子轴承载荷分布计算的轴承参数优化方法
CN107688716A (zh) * 2017-09-12 2018-02-13 大连交通大学 基于载荷分布和疲劳寿命的空心圆柱滚子轴承参数优化方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105134775A (zh) * 2015-10-12 2015-12-09 山东凯美瑞轴承科技有限公司 一种具有调心功能的混合轴承
DE102018109011A1 (de) 2018-04-17 2019-10-17 Schaeffler Technologies AG & Co. KG Wälzlager

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004672A1 (de) * 1980-02-08 1981-08-13 FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt Zweireihiges waelzlager
FR2479369A1 (fr) * 1980-04-01 1981-10-02 Torrington France Dispositif de roulement pour palier radial
DE19734980A1 (de) * 1997-08-13 1999-02-18 Schaeffler Waelzlager Ohg Zahnräderwechselgetriebe
DE10338207A1 (de) * 2003-08-20 2005-03-24 FAG Kugelfischer Georg Schäfer AG Pendelwälzlager und Käfig für das Pendelwälzlager
DE10348207A1 (de) 2003-10-16 2005-05-19 Siemens Ag Behandlung von Early Media-Daten II
CN2746186Y (zh) * 2004-09-26 2005-12-14 瓦房店轴承集团有限责任公司 高速柔性滚子轴承

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004672A1 (de) * 1980-02-08 1981-08-13 FAG Kugelfischer Georg Schäfer & Co, 8720 Schweinfurt Zweireihiges waelzlager
FR2479369A1 (fr) * 1980-04-01 1981-10-02 Torrington France Dispositif de roulement pour palier radial
DE19734980A1 (de) * 1997-08-13 1999-02-18 Schaeffler Waelzlager Ohg Zahnräderwechselgetriebe
DE10338207A1 (de) * 2003-08-20 2005-03-24 FAG Kugelfischer Georg Schäfer AG Pendelwälzlager und Käfig für das Pendelwälzlager
DE10348207A1 (de) 2003-10-16 2005-05-19 Siemens Ag Behandlung von Early Media-Daten II
CN2746186Y (zh) * 2004-09-26 2005-12-14 瓦房店轴承集团有限责任公司 高速柔性滚子轴承

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107358011A (zh) * 2017-09-12 2017-11-17 大连交通大学 基于圆柱滚子轴承载荷分布计算的轴承参数优化方法
CN107688716A (zh) * 2017-09-12 2018-02-13 大连交通大学 基于载荷分布和疲劳寿命的空心圆柱滚子轴承参数优化方法
CN107358011B (zh) * 2017-09-12 2020-12-01 大连交通大学 基于圆柱滚子轴承载荷分布计算的轴承参数优化方法
CN107688716B (zh) * 2017-09-12 2021-02-26 大连交通大学 基于载荷分布和疲劳寿命的空心圆柱滚子轴承参数优化方法

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Publication number Publication date
DE102011075249A1 (de) 2012-11-08

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