WO2001071205A1 - Roulement sans impuretés - Google Patents

Roulement sans impuretés Download PDF

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Publication number
WO2001071205A1
WO2001071205A1 PCT/CN2001/000314 CN0100314W WO0171205A1 WO 2001071205 A1 WO2001071205 A1 WO 2001071205A1 CN 0100314 W CN0100314 W CN 0100314W WO 0171205 A1 WO0171205 A1 WO 0171205A1
Authority
WO
WIPO (PCT)
Prior art keywords
positioning
rolling
ring
bearing
bearing according
Prior art date
Application number
PCT/CN2001/000314
Other languages
English (en)
Chinese (zh)
Inventor
Dabang Yu
Min Xu
Jianwen Xu
Original Assignee
Dabang Yu
Min Xu
Jianwen Xu
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 Dabang Yu, Min Xu, Jianwen Xu filed Critical Dabang Yu
Priority to AU2001248231A priority Critical patent/AU2001248231A1/en
Publication of WO2001071205A1 publication Critical patent/WO2001071205A1/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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/3713—Loose spacing bodies with other rolling elements serving as spacing bodies, e.g. the spacing bodies are in rolling contact with the load carrying 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
    • 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
    • F16C19/36—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 a single row of rollers
    • F16C19/364—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 a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • 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
    • F16C19/40—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 with loose spacing bodies between the 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
    • F16C33/34—Rollers; Needles
    • F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces

Definitions

  • the invention relates to a pure rolling bearing, in particular to a rolling bearing without sliding friction.
  • Existing rolling bearings are mainly composed of inner and outer rings, rolling elements and cages.
  • the rolling elements may be spherical, cylindrical or frusto-conical.
  • the existing rolling bearings In order to position the rolling elements relative to each other and the rolling elements in the bearing, the existing rolling bearings all have a cage device. This cage does not matter what form its structure takes, no matter what material and finish it uses, Rolling bodies are all controlled by sliding friction. The effect of this sliding friction force on bearing performance and life is critical.
  • the sliding friction between the ribs and rolling elements of this type of bearing further increases the sliding friction resistance during bearing operation, which reduces the life and reliability of the bearing.
  • the relative sliding friction between the rolling elements and the cage and the relative sliding friction between the rolling elements and the bearing ribs cause a series of problems during the operation of the bearing, especially during high-speed and ultra-high-speed operation, such as lubrication It is difficult, the temperature rise of the bearing is increased, and the noise is high. Under high temperature and high speed conditions of rolling elements and cages, the stress will increase sharply, resulting in bearing damage.
  • the rolling frictional resistance is insignificant in the bearing relative to the sliding frictional resistance.
  • the existence of such sliding friction also greatly reduces the bearing capacity of rolling bearings and significantly increases energy consumption. Under high-speed running conditions, the sliding friction between the rolling elements and the cage due to the centrifugal force increases sharply, and the frictional stress concentration can also cause rapid bearing damage. Therefore, the increase in the limiting speed of the rolling bearing is also greatly limited by such sliding friction. Summary of invention
  • the object of the present invention is to provide a pure rolling bearing with simple structure and convenient assembly.
  • the present invention provides a pure rolling bearing, which includes an inner ring, an outer ring, a plurality of rolling bodies disposed between the inner ring and the outer ring, disposed between every two adjacent rolling bodies, and The positioning rolling bodies in contact with them and the positioning rings provided on the slide rails at both ends of the positioning rolling bodies, wherein the rolling body (1), the positioning rolling bodies (2), the inner ring (3), the outer ring (4), At least one of the positioning ring (6) is separated.
  • the present invention is completed in such a manner that a positioning rolling body is installed in the circumferential direction between the adjacent rolling bodies and the rolling bodies, and the positioning rolling body simultaneously guarantees the circumferential distance between the adjacent rolling bodies and limits the rolling bodies in the bearing.
  • the axial position and the radial positioning of the positioning rolling body are completed by positioning the positioning rings on the arc slides at the two free ends of the rolling body.
  • the contact between the positioning ring and the slide is a point contact, and the contact between the positioning rolling body and the rolling body is also a point contact.
  • Positioning rolling elements are moving in the use of bearings,
  • the invention has convenient processing and installation, and is easy to popularize and implement.
  • FIG. 1 is a sectional view of a rolling bearing according to a first embodiment of the present invention
  • FIG. 2 is a sectional view of a rolling bearing according to a second embodiment of the present invention.
  • Fig. 3 is a sectional view of a rolling bearing according to a third embodiment of the present invention. Description of preferred embodiments
  • the rolling bearing includes an inner ring 3, an outer ring 4, a plurality of cylindrical rolling bodies 1 disposed between the inner and outer rings 1, and a positioning rolling body disposed between every two adjacent rolling bodies 1. 2.
  • a positioning ring 6 provided on the slide rail 5 at both ends of the positioning rolling body 2.
  • the outer ring 4 is provided with an arc-shaped protruding rib 8 formed integrally therewith.
  • a V-shaped slideway 7 is provided at the middle position of the rolling body 1 to cooperate with the rib 8.
  • An arc-shaped protrusion 9 is provided on the middle position of the positioning rolling body 2 to cooperate with the slideway 7. '
  • Positioning the rolling elements 2 at the same time guarantees the circumferential separation distance between adjacent rolling elements and limits the axial position of the rolling elements in the bearing.
  • the axial positioning and radial positioning of the positioning rolling body are completed by positioning rings 6 provided on the slide rails 5 at the free ends of the positioning rolling body at both ends.
  • the positioning ring 6 and the slide 5, the positioning rolling body 2 and the rolling body 1, and the contact of the rolling body 1 with the bearing inner ring 3 and the outer ring 4 are point contacts, and the relative speed difference between the two objects at all these contact points is zero. Therefore, this bearing is a pure rolling bearing.
  • the cross section of the slideway 5 is a V-shaped concave shape
  • the cross section of the positioning ring 6 is a convex shape of an arc, thereby forming a rolling contact.
  • the cross section of the slide rail 5 convex and the cross section of the positioning ring 6 concave.
  • the cross-sectional shape of the slideway 5 and the intermediate slideway 7 in which the positioning rolling body 2 is in rolling contact with the rolling body 1 may be various shapes such as an arc shape or a groove shape in addition to the V shape.
  • the rib 8 may also be a V-shaped, arc-shaped or groove-shaped groove so as to cooperate with the convex intermediate slideway 7.
  • the cross-sectional shapes of inner ring 3 and outer ring 4, slide 5 and slide 7 may be the same or different.
  • the rolling body 1 and / or the positioning rolling body 2 can be made into a component.
  • the two parts constituting the end slide 5 and the configuration Parts of the intermediate slideway 7 are manufactured separately, and are assembled during the assembly by means of interference fit or screw fit.
  • the positioning rolling body 2 may also be made integrally and integrated.
  • the positioning ring 6 and the inner ring 3 and the outer ring 4 can also be made into a body, which will be described later. '
  • FIG. 2 shows a rolling bearing according to a second embodiment of the present invention.
  • the rolling bearing is provided with ribs on both the inner ring 3 and the outer ring 4.
  • the rib 8 'on the inner ring 3 is a separate component, and is not integrated with the inner ring 3, and the inner ring 3 is also a split type.
  • FIG. 3 shows a rolling bearing according to a third embodiment of the present invention.
  • the rolling bearing is a tapered roller bearing which is provided with a rib 8 on the inner ring 3 instead of the outer ring 4 as in the first embodiment.
  • the position diameter of the axis of the positioning rolling body 2 should be smaller than the diameter position of the axis of the rolling body, and the positioning rolling body rolls on the outer circumference of the positioning ring 6.
  • the positioning ring 6 and the inner ring 3 may be rigidly integrated into one through a connecting device.
  • the positioning ring 6 and the outer ring 4 can be rigidly connected into one body by a connecting device. Therefore, the protection scope of the present invention should be defined by the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

L'invention concerne un roulement sans impuretés présentant une structure novatrice caractérisé en ce qu'il est exempt de cage de retenue et de friction par glissement à la différence des roulements classiques qu'il remplace. Ce roulement se compose d'une bague interne, d'une bague externe, d'un corps de roulement, d'un corps de roulement de positionnement et d'un anneau de positionnement, toutes ces pièces étant séparées. Le roulement de cette invention permet de remédier aux inconvénients provoqués par l'utilisation de la cage de retenue entraînant un frottement. Par conséquent, la résistance est fortement réduite, la consommation et le bruit s'en trouvent atténués, la vitesse de rotation et la durée de vie s'en trouvent améliorées. De plus, on assure une meilleure précision et une plus grande fiabilité des machines et des équipements moteurs.
PCT/CN2001/000314 2000-02-28 2001-02-28 Roulement sans impuretés WO2001071205A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001248231A AU2001248231A1 (en) 2000-02-28 2001-02-28 Pure rolling bearing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN00111744.0 2000-02-28
CN 00111744 CN1311403A (zh) 2000-02-28 2000-02-28 纯滚动轴承三

Publications (1)

Publication Number Publication Date
WO2001071205A1 true WO2001071205A1 (fr) 2001-09-27

Family

ID=4581644

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2001/000314 WO2001071205A1 (fr) 2000-02-28 2001-02-28 Roulement sans impuretés

Country Status (3)

Country Link
CN (1) CN1311403A (fr)
AU (1) AU2001248231A1 (fr)
WO (1) WO2001071205A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010018519A1 (de) * 2010-04-27 2011-10-27 Hans-Joachim Ober Rotierbares Wälzlager
RU2579373C1 (ru) * 2015-01-20 2016-04-10 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Радиальный роликовый подшипник качения

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20110177A1 (it) * 2011-11-08 2013-05-09 Danieli Off Mecc Cuscinetto di supporto per un rullo

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264264A2 (fr) * 1986-10-15 1988-04-20 Kazuo Kuroiwa Elément roulant et éléments de retenue correspondants
EP0303228A1 (fr) * 1987-08-14 1989-02-15 Honeywell Inc. Roulement à billes avec des rouleaux intercalaires

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264264A2 (fr) * 1986-10-15 1988-04-20 Kazuo Kuroiwa Elément roulant et éléments de retenue correspondants
EP0303228A1 (fr) * 1987-08-14 1989-02-15 Honeywell Inc. Roulement à billes avec des rouleaux intercalaires

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010018519A1 (de) * 2010-04-27 2011-10-27 Hans-Joachim Ober Rotierbares Wälzlager
RU2579373C1 (ru) * 2015-01-20 2016-04-10 Открытое акционерное общество "Уфимское моторостроительное производственное объединение" ОАО "УМПО" Радиальный роликовый подшипник качения

Also Published As

Publication number Publication date
AU2001248231A1 (en) 2001-10-03
CN1311403A (zh) 2001-09-05

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