WO2003033925A1 - Palier a roulement lineaire - Google Patents

Palier a roulement lineaire Download PDF

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Publication number
WO2003033925A1
WO2003033925A1 PCT/EP2002/010979 EP0210979W WO03033925A1 WO 2003033925 A1 WO2003033925 A1 WO 2003033925A1 EP 0210979 W EP0210979 W EP 0210979W WO 03033925 A1 WO03033925 A1 WO 03033925A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
housing
raceways
support piece
bearing according
Prior art date
Application number
PCT/EP2002/010979
Other languages
German (de)
English (en)
Inventor
Jürgen OSTERLÄNGER
Manfred Kraus
Original Assignee
Ina-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 Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Priority to BRPI0206142-2A priority Critical patent/BR0206142B1/pt
Publication of WO2003033925A1 publication Critical patent/WO2003033925A1/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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
    • F16C29/0683—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque
    • F16C29/0685—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
    • F16C29/0692—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a guide rail or track of non-circular cross-section, e.g. with grooves or protrusions, i.e. the linear bearing is suited to transmit torque
    • F16C29/0695—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a guide rail or track of non-circular cross-section, e.g. with grooves or protrusions, i.e. the linear bearing is suited to transmit torque with balls
    • F16C29/0697—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a guide rail or track of non-circular cross-section, e.g. with grooves or protrusions, i.e. the linear bearing is suited to transmit torque with balls with polygonal guide rail or track

Definitions

  • the invention relates to a linear roller bearing with a shaft and a housing, which surrounds the shaft and is mounted so as to be longitudinally displaceable via rolling elements on raceways of the shaft, the rolling elements being located in a plurality of endless rotations which are arranged one behind the other in the housing in the circumferential direction of the shaft and each circulation has a support area, a return area and two deflection areas connecting these areas, and wherein the housing is formed by a carrier part and an annular support piece embedded therein, the inner surface of which has raceways for supporting rolling elements and on the outer surface of which return channels for returning rolling elements are arranged.
  • Such a bearing is suitable for use in the field of electromechanical steering of motor vehicles, but is also suitable for use in mechanical engineering.
  • a linear roller bearing is known from the publication DE 36 39 544 C2, which enables the transmission of torques from a shaft to a sleeve, which is axially displaceable relative to the shaft.
  • This bearing has a solid sleeve as a housing.
  • a sleeve made of a metallic material such a design requires a high weight and causes a loud running noise of the rolling bearings. The production of this sleeve involves high costs.
  • a linear roller bearing of the type mentioned, in which balls are used as rolling elements, is known from the document DE 42 18 981 A1.
  • the shaft acting as a guide rail for the support body housing has a circular cylindrical shape, so that a transmission of torques from the housing to the shaft is not possible with this linear bearing.
  • the invention has for its object to develop the linear roller bearing so that it is suitable for absorbing radial forces as well as torques.
  • this object is achieved in that the shaft for receiving and transmitting torques is provided with a profile which deviates from the circular shape in cross section. In this way, an advantageous torque rifle is created.
  • the ring-shaped support piece of the housing can be designed as a profile body with a plurality of raceways for load-bearing rolling elements incorporated on its inner surface.
  • Rolling bodies designed as balls or as rollers can be arranged such that they can be unrolled on the raceways of the shaft and the support piece.
  • the plastic carrier part of the housing can be made divided in the region of a parting plane that intersects the longitudinal axis of the shaft, in which case the two parts formed can have grooves parallel to the longitudinal axis in which the carrier piece is received.
  • radially projecting fastening tabs can be formed on the plastic carrier part.
  • the housing can be surrounded by a plurality of circular cylinder segments, which are arranged one behind the other in the circumferential direction of the shaft and are supported on partial regions of the support piece.
  • the fastening tabs can also be integrally formed on the circular cylinder segments so as to protrude radially.
  • the linear roller bearing according to the invention has the following advantages: It is inexpensive to manufacture, suitable for mass quantities, has very good efficiency with a stick-slip-free or low-run operation, enables reliable assembly and offers low-noise operation. Alignment errors between the shaft and the housing are largely compensated for in this bearing.
  • Figure 1 shows a first embodiment of a linear roller bearing according to the invention, transmitting torque in a perspective view
  • Figure 2 is an end view of the camp
  • Figure 3 shows the bearing in longitudinal section along line III - III of Figure 2 or in side view
  • Figure 4 shows another embodiment of a bearing with a shaft and a housing surrounding it in longitudinal section; 5 shows a cross section through the further bearing along the line N - N of
  • Figure 6 shows a third embodiment of a bearing in a section corresponding to Figure 5;
  • Figure 7 shows a fourth embodiment of a bearing in a section corresponding to Figure 5;
  • Figure 8 shows a fifth embodiment of a bearing in a section corresponding to Figure 5 and
  • FIG. 9 shows a sixth embodiment of a bearing at an intersection corresponding to FIG.
  • the linear roller bearing according to the invention shown in FIGS. 1 to 3 contains a shaft 1 which is surrounded by a housing 2. This is mounted on the shaft 1 in a longitudinally displaceable manner via rolling elements 3.
  • the rolling elements 3 are arranged in a plurality of endless revolutions in the housing 2, supporting rolling elements being supported in a rollable manner on raceways 4 of the shaft 1 and on raceways of an annular support piece 5.
  • the support piece 5 is arranged in the housing 2 within a support part 6, which is located in a sleeve 7.
  • Return channels for returning rolling elements 3 are located on the outer surface of the annular support piece 5.
  • the return channels are connected at their ends to the areas of the supporting rolling elements 3 via deflection channels. In this way, several endless rolling element revolutions are formed. They are arranged one behind the other in the circumferential direction of the shaft 1 and the housing 2.
  • the shaft 1 has four raceways 4, so that four rolling element revolutions are provided.
  • the shaft 9 has six raceways 10 for rolling elements 3.
  • An annular support piece 11 is not circular in cross section, but profiled. It is provided on its inside with six raceways 12 for load-bearing rolling elements 3 and on its outer surface has return channels 13 for returning rolling elements 3 corresponding to these six raceways 12.
  • a support part, in which the support piece 11 is embedded, is in this case designed as a plastic support part 14, it forms a housing 15 together with the support piece 11.
  • Four fastening tabs 16 are formed on the plastic support part 14 for connection to a connection component.
  • the plastic carrier part 14 is divided along a plane that is perpendicular to the longitudinal axis 17 of the shaft 9. Each part has a groove which corresponds to the shape of the support piece 11, so that the support piece 11 can be arranged in a simple manner within the plastic support part 14.
  • a shaft 18, a plastic carrier part 19 and a support piece 20 are shaped such that at least the radial force transmission takes place directly through the support piece 20.
  • the housing has three fastening tabs 16.
  • the shaft 18 can be referred to as a cross shaft. Eight roller circulations are provided.
  • the support piece 20 has four outer regions, which serve for radial support in an installation bore of a connection component.
  • a shaft 21 only deviates from the exact circular shape insofar as a total of sixteen raceways are incorporated into the outer surface of the shaft 21, so that sixteen rolling element circulations are provided in a plastic carrier part 22. Accordingly, a support piece 23 is used, which is substantially annular. This version is provided when the radial forces to be transmitted dominate and the torque to be transmitted is only low.
  • a linear roller bearing shown in Figure 8 with four mounting tabs 16 has a shaft 24 which is almost square in cross section, so that one can speak of a square shaft.
  • a support piece 25 surrounding the shaft 24, which together with a plastic support part forms a housing 26, has four outer partial areas 27.
  • four circular cylinder segments 28 are formed on the housing 26, with each partial region 27 of the support piece 25 abutting two adjacent circular cylinder segments 28.
  • the rolling bodies 3 are designed as balls, just as in the previous designs.
  • FIG. 9 An exemplary embodiment of the linear roller bearing according to the invention shown in FIG. 9 differs from the bearing shown in FIG. 8 essentially only in that the roller bodies 32, which roll on the shaft 29 and the support piece 30, are designed as rollers within the housing 31 ,
  • the housing 31 has four fastening tabs 16.

Landscapes

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

Abstract

La présente invention concerne un palier à roulement linéaire comprenant un arbre (9) et un boîtier (15) qui entoure l'arbre (9) et qui peut se déplacer en direction longitudinale par l'intermédiaire de corps de roulement (3) sur des voies de roulement (10) de l'arbre (9). Ces corps de roulement (3) se trouvent sur plusieurs voies de circulation continues qui sont situées les unes derrière les autres dans le boîtier (15), dans la direction périphérique de l'arbre (9). Chaque voie de circulation présente une zone de support, une zone de retour et deux zones de déviation qui relient ces zones entre elles. Le boîtier (15) est constitué d'une partie de support (14) et d'une pièce de support annulaire (11) intégrée dans ladite partie de support. La surface intérieure de cette pièce de support présente des voies de roulement (12) pour des corps de roulement porteurs (3). Des canaux de retour (13) pour des corps de roulement de retour (3) se trouvent sur la surface extérieure de ladite pièce de support. Afin d'absorber et de transmettre des couples, l'arbre (9) selon cette invention est pourvu d'un profilage dont la section transversale n'est pas circulaire.
PCT/EP2002/010979 2001-10-12 2002-10-01 Palier a roulement lineaire WO2003033925A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0206142-2A BR0206142B1 (pt) 2001-10-12 2002-10-01 mancal de rolamento linear.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001150595 DE10150595A1 (de) 2001-10-12 2001-10-12 Linearwälzlager
DE10150595.7 2001-10-12

Publications (1)

Publication Number Publication Date
WO2003033925A1 true WO2003033925A1 (fr) 2003-04-24

Family

ID=7702402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010979 WO2003033925A1 (fr) 2001-10-12 2002-10-01 Palier a roulement lineaire

Country Status (3)

Country Link
BR (1) BR0206142B1 (fr)
DE (1) DE10150595A1 (fr)
WO (1) WO2003033925A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324480A1 (de) 2003-05-30 2004-12-16 Ina-Schaeffler Kg Linearwälzlager zum Übertragen von Drehmomenten
DE102006004934A1 (de) * 2005-08-02 2007-03-08 Schaeffler Kg Längsführung eines Bauteiles eines Fahrrades
DE102006030105A1 (de) * 2006-06-28 2008-01-03 Voith Turbo Gmbh & Co. Kg Längenvariable Welle
DE102006053998A1 (de) * 2006-11-16 2008-05-21 Schaeffler Kg Linearwälzlager für axiale Bewegungen auf einer im Querschnitt kreisförmigen Führungsschiene
JP5786007B2 (ja) 2013-09-25 2015-09-30 Thk株式会社 ボールスプライン付きリニアモータアクチュエータ及びその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482338A (en) * 1981-08-17 1984-11-13 Skf Kugellagerfabriken Gmbh Torque transmitting bearing assembly for members adapted for a relative longitudinal movement and method of assembly thereof
US4553796A (en) * 1983-07-23 1985-11-19 Skf Kugellagerfabriken Gmbh Mechanism including a bearing assembly for members adapted for longitudinal movement relative to one another
US4659239A (en) * 1985-04-30 1987-04-21 Hiroshi Teramachi Bearing for axial linear motion
US5584765A (en) * 1993-07-21 1996-12-17 Nippon Thompson Co., Ltd. Ball spline with liner member
EP0826891A2 (fr) * 1996-07-17 1998-03-04 Nippon Thompson Co., Ltd. Guide à roulement pour un déplacement curviligne

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822748C (de) * 1947-10-09 1951-11-29 Gkn Group Services Ltd Lager fuer axialverschiebliche und in Drehrichtung miteinander kuppelbare Teile
US3364699A (en) * 1965-03-22 1968-01-23 Edmund B Anderson Anti-friction slip joint
GB1248578A (en) * 1968-02-19 1971-10-06 Rotax Ltd Rectilinear motion bearings
DE2027292A1 (de) * 1970-06-03 1971-12-16 Star Kugelhalter Gmbh Dt Kugelbuchse
DE2125603A1 (de) * 1971-05-24 1972-12-14 Klessmann Ima Norte Maschfab Walzlager
DE2605603C2 (de) * 1976-02-12 1983-11-10 Deutsche Star Kugelhalter Gmbh, 8720 Schweinfurt Wälzlager für Axialbewegungen
DE2649245C2 (de) * 1976-10-29 1984-10-31 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Kugellager für Längsbewegungen
JPS5848775B2 (ja) * 1981-08-06 1983-10-31 博 寺町 無限摺動用ボ−ルスプライン軸受
JPS62237113A (ja) * 1986-04-05 1987-10-17 Nippon Thompson Co Ltd ボ−ルスプライン軸受
DE4218581A1 (de) * 1992-06-05 1993-12-09 Skf Gmbh Spannvorrichtung für Treibriemen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482338A (en) * 1981-08-17 1984-11-13 Skf Kugellagerfabriken Gmbh Torque transmitting bearing assembly for members adapted for a relative longitudinal movement and method of assembly thereof
US4553796A (en) * 1983-07-23 1985-11-19 Skf Kugellagerfabriken Gmbh Mechanism including a bearing assembly for members adapted for longitudinal movement relative to one another
US4659239A (en) * 1985-04-30 1987-04-21 Hiroshi Teramachi Bearing for axial linear motion
US5584765A (en) * 1993-07-21 1996-12-17 Nippon Thompson Co., Ltd. Ball spline with liner member
EP0826891A2 (fr) * 1996-07-17 1998-03-04 Nippon Thompson Co., Ltd. Guide à roulement pour un déplacement curviligne

Also Published As

Publication number Publication date
BR0206142B1 (pt) 2011-02-08
DE10150595A1 (de) 2003-04-17
BR0206142A (pt) 2003-12-23

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