EP3411605A1 - Galet de roulement pour joint multipode - Google Patents

Galet de roulement pour joint multipode

Info

Publication number
EP3411605A1
EP3411605A1 EP17706666.9A EP17706666A EP3411605A1 EP 3411605 A1 EP3411605 A1 EP 3411605A1 EP 17706666 A EP17706666 A EP 17706666A EP 3411605 A1 EP3411605 A1 EP 3411605A1
Authority
EP
European Patent Office
Prior art keywords
roller
cage
rolling elements
rollers
outer ring
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
EP17706666.9A
Other languages
German (de)
English (en)
Inventor
Xavier Mehul
Christophe Walliser
Jean-Philippe DIETRICH
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and 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 and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3411605A1 publication Critical patent/EP3411605A1/fr
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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/221—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being located in sockets in one of the coupling parts
    • 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
    • F16C19/24—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 radial load mainly
    • F16C19/26—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 radial load mainly with a single row 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
    • F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
    • 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
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • 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
    • F16C33/4694—Single-split roller or needle cages
    • 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
    • F16C33/49—Cages for rollers or needles comb-shaped
    • F16C33/491—Cages for rollers or needles comb-shaped applied as pairs for retaining both ends of the 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
    • 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
    • F16C33/49—Cages for rollers or needles comb-shaped
    • F16C33/494—Massive or moulded comb cages
    • F16C33/495—Massive or moulded comb cages formed as one piece cages, i.e. monoblock comb cages
    • F16C33/498—Massive or moulded comb cages formed as one piece cages, i.e. monoblock comb cages made from plastic, e.g. injection moulded comb cages
    • 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
    • F16C33/583—Details of specific parts of races
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/40—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
    • F16D3/41—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes with ball or roller bearings
    • 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
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/41—Couplings
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
    • 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
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D2003/2026—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints with trunnion rings, i.e. with tripod joints having rollers supported by a ring on the trunnion

Definitions

  • the invention relates to a roller for a pod joint, with an inner ring means for receiving a pin of a stub shaft portion, with an outer ring means, wherein on the outer side of the outer ring means a raceway for running on a bell portion is arranged, with a plurality of rolling elements, wherein the rolling elements between the inner ring means and the outer ring means are arranged, wherein the rolling bodies are formed as rollers, and with a cage means, wherein the rolling bodies are arranged in the cage means.
  • Constant velocity joints are known in the design of tripod joints.
  • Such tripod joints have as a first joint partner on a shaft end formed thereon, projecting radially to the shaft end journal portions on which rollers are arranged.
  • This first joint partner is introduced in a bell as a second joint partner, wherein the rollers can roll on an inner side of the bell, so that the shaft end pivoted relative to the bell, but can be rotated together with the bell.
  • Such a tripod joint is described for example in the document DE 10 2004 025 531 A1, which probably forms the closest prior art.
  • This document deals in particular with the structure of the roller, wherein it has an inner ring, which is arranged on the pin, and an outer ring which can roll with its outer periphery on an inner surface of the bell. Between the inner ring and the outer ring needle-shaped rolling elements are arranged, which are guided in a cage.
  • the invention relates to a roller, which is suitable and / or designed for a pod joint.
  • the roller is designed as a pod steering roller.
  • the roller is designed as a radial bearing, in particular as a radial roller bearing.
  • the roller defines with the axis of rotation a roller axis.
  • a radial roller bearing is formed by rolling elements, in this case rollers and needles, and by an inner raceway and an outer raceway, on which roll the rolling elements.
  • the pod joint and / or the roller is or are preferably arranged in a drive train of a vehicle.
  • the vehicle with the pod joint and / or with the roller forms a further subject of the invention.
  • the pod joint is in the drive train preferably between a transmission output, in particular differential gear output, and a driven wheel arranged.
  • the pod joint between the transmission output and an intermediate shaft, in particular propeller shaft, arranged to transmit a driving torque to the driven wheel.
  • the vehicle preferably has two of the pod joints on a driven axle.
  • the driven axle is at the same time a steered axle, for example the front axle of a PkW.
  • the function of the pod joint is to provide a pivotable and / or angularly articulated connection between the transmission output and the intermediate shaft for transmitting the drive torque.
  • the pod joint is preferably designed as a constant velocity joint.
  • the pod joint is designed as a bipod joint, tripod joint or as a quattropod joint.
  • the pod joint has a stub shaft portion as a first joint partner with pins arranged thereon or thereon.
  • the pins may be integrally connected to the stub shaft portion.
  • the spigots are formed on a star with a hub whose "spikes" are formed by the spigots. The spigot is seated on a shaft or a stub shaft with the hub 10.
  • the spikes are preferably radially or at least angled to a shaft axis as rotation axis and / or Preferably, the pins are regularly distributed in the direction of rotation around the stub shaft portion, it is provided that the roller is placed or can be placed on the stub, preferably such a roller is placed on each of the stubs.
  • the pod joint has a bell section, often referred to as a tulip, as a second joint partner.
  • the stub shaft portion with the pins and the rollers is inserted in the bell portion, wherein the rollers (outer ring means) with their outer races on one or more Roll surfaces, in particular inner surfaces of the bell portion to pivot the stub shaft portion relative to the bell portion.
  • stub shaft portion forms a portion of the intermediate shaft or is operatively connected thereto and the bell portion is operatively connected to the transmission output.
  • shaft end portion is operatively connected to the transmission output and the bell portion forms a portion of the intermediate shaft or is operatively connected thereto.
  • the inner race is formed directly on a cylindrical pin in the region of the inner race.
  • the roller has an inner ring device, which is designed and / or suitable for receiving one of the pins.
  • the inner ring means on the pin, in particular rotationally fixed and / or fixed against displacement, in particular such that the pin penetrates the inner ring means.
  • the inner ring device may be composed of several individual parts, but preferably this is formed in one piece and / or einmaterialig.
  • the inner ring device is designed as a forming inner ring produced.
  • the inner ring device has on the radial outer side of the inner raceway and on the inside a contact surface for contacting with the pin.
  • Casters whose inner race is formed directly on the surface of the pin, claim in comparison to those with inner ring little radial space. In addition, such roles on the lack of inner ring fewer components.
  • rollers with an inner ring can advantageously be used to create an additional articulated connection to the propeller shaft, in particular when the seat of the journal is of spherical design.
  • the roller further has an outer ring device which is preferably arranged coaxially and / or concentrically with the inner ring device with respect to the roller axis.
  • the outer ring device can be designed in several parts, especially However, this is preferably formed in one piece and / or in one piece.
  • the outer ring device is designed as a metal-made outer ring.
  • the outer ring is machined from bearing steel.
  • the outer ring device carries on the radial inner side an outer raceway and on the outer side, in particular the radial outer side, a track for running, in particular rolling and / or sliding on the bell section.
  • the track for running on the bell portion in a longitudinal section through the roller axis crowned, in particular spherical is formed.
  • the center of the spherical curvature is preferably on the roller axis.
  • a difference in the diameter of the track from a maximum diameter to a smallest diameter at least two millimeters, preferably at least four millimeters.
  • the roller on a plurality of rolling elements wherein the rolling elements between the inner ring means and the outer ring means are arranged.
  • the rolling elements between the inner ring means and the outer ring means are arranged to roll.
  • the rolling elements roll or run on the outer race of the inner ring device and the inner race of the outer ring device.
  • the rolling elements are designed as rollers, in particular as cylindrical rollers, in particular as needles or needle rollers.
  • the rolling elements have a length in the axial direction, which is at least two and a half times as large as the diameter of the respective rolling element, wherein needle rollers have a comparatively large diameter compared to needles.
  • the roller has a cage device, wherein the rolling elements are arranged in the cage device.
  • the cage device is designed to space the rolling elements in the direction of rotation about the roller axis from each other.
  • the cage device is designed as a center cage.
  • the center cage is designed such that it guides the rollers exclusively in the middle region, in particular spaced apart from one another.
  • the running areas are freely accessible via the center cage.
  • a free-standing end of the rollers can thus be seen in the middle region of the center cage and on each side.
  • the free ends of the rolling elements, in particular the rollers are arranged freely protruding from the center cage.
  • the rollers are held only centrally, with the free ends of the rollers being spaced from the center cage.
  • the center cage extends in the axial extent preferably less than 50%, less than 40% of the length of the rollers.
  • the invention is based on the consideration that through the center cage, the rollers can be arranged in defined positions in the roller and thereby the assembly of the roller is simplified.
  • the center cage is suitable for use in a roller, since the roller - despite its name - has to implement only small relative rotations between inner ring means and outer ring means. This makes it possible to use the center cage, although this may not be optimal in terms of frictional losses to guide rolling elements.
  • the necessary space for the center cage can be created for example by recesses in the inner ring means and / or - in a preferred embodiment - in the outer ring means.
  • the rolling contact for the rolling or running between the inner ring means and the outer ring means is carried out exclusively on the running areas of the rollers - these are the areas left and right side of the center area on the track with recess. On the track without recess, the rollers over their entire load-bearing length, so in the middle area, roll off.
  • the rollers each have an uninterrupted and / or constant diameter in their axial extent over the central region and the running regions.
  • this embodiment has the advantage that an axial displacement of the rollers in the Mittenhimfig is problem-free, because center area and running areas merge seamlessly.
  • the embodiment has the advantage that the rollers can be produced inexpensively, since they need not have any taper or other diameter adjustments for the center cage.
  • the known rollers are used at least at their ends end profiled or crowned over the entire length rollers or needles.
  • the center cage is designed as a continuous or interrupted peripheral web with recordings, in particular snap-in recordings, for the rollers.
  • the rollers are first snapped into the snap-in receptacle and subsequently the populated center cage can be mounted.
  • the snap-in receptacles are open radially inwardly and engage around the rollers in each case so far that in the installed state in the roller, the rollers lie linearly over the middle region and the two running regions on the inner ring device.
  • the receptacles are designed so that they are open radially outwards and the center cage is constructed so that in the installed state in the roller, the rollers contact the outer ring means linear with the central region and the two running areas.
  • the center cage is constructed so that in the installed state in the roller, the rollers contact the outer ring means linear with the central region and the two running areas.
  • the center cage may be designed to be closed in the direction of rotation.
  • the center cage is particularly stable.
  • the center cage in the direction of rotation about the roller axis has at least one separation point.
  • the center cage is interrupted at the at least one separation point. It is a consideration of the development that the mounting of the cage device with the rolling elements between the inner ring means and the outer ring means can prove difficult due to constructive constraints.
  • the fact that the center cage has at least one separation point it is possible to mount the center cage deviating from the later geometric shape, in particular deviating from the later diameter of the center cage.
  • the center cage has exactly one separation point.
  • the center cage is formed as a blasted ring. This embodiment has the advantage that the center cage can be handled similarly easy as a closed in the circumferential direction cage during assembly, but can be changed in diameter by an up or bending during assembly in the diameter.
  • the center cage is formed as a segment cage and / or has more than one separation point.
  • the center cage is divided in the direction of rotation in exactly or at least two segments. For example, it is possible that the center cage is divided in half in the direction of rotation.
  • the center cage has a larger in the circumferential direction and a smaller segment. For example, it is possible within the scope of the invention for a segment to provide three quarters and a smaller segment a quarter of the center cage.
  • more segments such as three or four segments, form the center cage, which can be lined up in the direction of rotation.
  • the assembly is simplified because the segments of the center cage can be easily placed or snapped onto the interior.
  • the outer ring device has a circumferential running groove for the rollers.
  • the rollers are thus arranged in the outer ring means, so that the rollers are guided in the axial direction through the side walls of the peripheral running groove.
  • the roller has at least one securing side ring, preferably two securing side rings. It is envisaged that the backup side ring is arranged in the outer ring means and secures the rollers in the axial direction.
  • the outer ring means on circumferential annular grooves for the one or more backup side rings, in which the or the backup side rings are inserted positively.
  • Another object of the invention is formed by a pod joint for a vehicle, wherein the pod joint has at least one roller, as described above.
  • the pod joint is preferably designed as a tripod joint and has three pins and preferably three of the rollers. In other embodiments, it may also be provided that the pod joint has only exactly two pins or exactly four pins or more pins and carries a corresponding number of such rollers.
  • Figure 1 is a highly schematic representation of a pod steering as an embodiment of the invention
  • Figures 2a, b are schematic longitudinal sectional views of two different embodiments of rollers for the pod joint in Figure 1; 3 shows a three-dimensional representation of an embodiment of a cage device for the rollers in Figures 2a, b and in the pod joint according to the figure 1.
  • FIG. 1 shows in a highly schematic representation a pod joint 1 for a vehicle 2, which is shown only as a block, as an exemplary embodiment of the invention.
  • the pod joint 1 is arranged in the drive train between a transmission output 3, in particular a differential gear, and an intermediate shaft 4, in particular wheel drive shaft or propeller shaft.
  • the transmission output 3 defines an output axis 5
  • the intermediate shaft 4 defines a shaft axis 6.
  • the pod joint 1 is designed to transmit a rotation and thus a drive torque from the output 3 to the intermediate shaft 4 and at the same time a pivoting or angular change between the output axis 5 and the To allow shaft axis 6, as can be done for example in a compression of the connected to the intermediate shaft 4, driven wheel.
  • the intermediate shaft 4 has a stub shaft portion 7, on which a plurality of pins 8, in this embodiment three pins 8, are arranged, which extend radially to the shaft axis 6.
  • the pins 8 are regularly arranged in the circumferential direction about the shaft axis 6, so that they form a Podenstern, in this example, a tripod star. In FIG. 1, only one of the pins 8 is shown graphically.
  • a respective roller 9 is arranged, which has a roller axis 30 as a rotation axis, which is arranged radially to the shaft axis 6.
  • the pod joint 1 further has a bell portion 10 which is rotatably coupled to the output 3 and which provides raceways for the rollers 9.
  • the bell portion 10 is rotatably coupled to the output 3 and the stub shaft portion 7 rotatably coupled to the intermediate shaft 4, it is at Other embodiments also possible that the stub shaft portion 7 is rotatably coupled to the output 3 and the bell portion 10 is coupled to the intermediate shaft 4. Furthermore, it is possible that the bell portion 10 is formed circumferentially closed or has free areas.
  • rollers 9 each have an inner ring means 1 1 and an outer ring means 12, which are arranged coaxially and concentrically with the roller axis 30.
  • the inner ring device 1 1 is formed as a one-piece and / or einmaterialiger inner ring and has radially inside a hollow cylindrical receptacle 13 for the pin 8. Radially on the outside this provides a cylindrical surface as an inner race 14 ready.
  • the outer ring device 12 is formed in one piece and / or one material and has on the radial outer side of a raceway 15 for draining on an inner region of the bell section 10.
  • the track 15 is crowned in the longitudinal section shown and spherical in this embodiment with respect to the raceway roller axle 10.
  • the outer ring device 12 On the radially inner side, the outer ring device 12 carries an outer race 16.
  • the rolling elements 17 are designed as rollers, in particular cylindrical rollers and realized in both embodiments as needle rollers, wherein the longitudinal extent in the axial direction to the raceway axis 30 more than five times as large as the diameter of the rolling elements 17.
  • the rolling elements 17 roll on the one hand on the inner race 14th and on the other hand, on the outer race 16.
  • the inner ring means 1 1 can be rotated relative to the outer ring means 12 via the rolling elements 17, wherein inner ring means 1 1 and outer ring means 12 roll over each other via the rolling elements 17.
  • the rolling elements 17 are arranged in a cage device 18, which will be explained in detail later with reference to FIG 2.
  • the roller 9 has two securing side rings 19, 20, which secure the rolling elements 17 directly in the axial direction.
  • the backup side rings 19, 20 are inserted in circumferential annular grooves 21, 22, which are formed in the outer ring means 12.
  • the side rings 19, 20 extend in the radial direction inwardly so far that they overlap in an axial plan view with the inner ring means 1 1 and thus also secure the inner ring means 1 1 against axial Auswandern.
  • the outer race 16 is formed as a hollow cylinder and extends over an extension to the backup side rings 19, 20.
  • the outer ring means 12 in the embodiment in Figure 2b, the outer ring means 12, however, a circumferential groove 23, which is designed in the axial width in that the rolling elements 17 are guided axially through the side walls of the running groove 23.
  • a circumferential recess 24 is provided in the outer ring device 12
  • the cage device 18 is formed as a center cage.
  • the cage device 18 or the center cage is realized as a circumferential web with a rectangular cross section in this example.
  • the cage device is made of plastic.
  • the cage device 18 has receptacles 25, which are aligned parallel to the roller axis 30 and are opened radially inwardly.
  • In the receptacles 25 each have a rolling element 17 is arranged, wherein the rolling element 17 designed as a roller extends in the axial direction.
  • the rolling elements 17 are inserted into receptacles 25 of the cage device 18 and preferably clipped, so that they are held positively at least in the radial direction to the roller axis 30.
  • the rolling bodies 17 each have a central region 26 and adjacent thereto on each side a running region 27 a and b, respectively.
  • the cage device 18 is structurally designed so that the rolling elements 17 protrude radially inwardly beyond the cage device 18 and the rolling elements 17 run with the center region and the two running regions 27a, b linearly on the inner race 14. On the outer race 16, however, only contact the two running areas 27a, b.
  • the outer race 16 is divided by the recess 18 into two subregions, wherein on each of the parts areas of one of the running areas 27 a, b roll or roll.
  • the cage device 18 is not closed in the direction of rotation about the roller axis 10, but has a separation point 28, so that the cage device 18 is once completely interrupted in the direction of rotation.
  • the at least one separation point 28 ensures that the cage device 18 is easier to assemble.
  • the cage device 18 can be changed in Figure 3 by growing or Zubiegen in the free diameter.
  • the cage device 18 is closed in the direction of rotation.
  • the center cage is formed as a segment cage and has a plurality of center cage segments.

Landscapes

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

Abstract

La présente invention a pour but de simplifier le montage de joints tripode. Ce but est atteint par un galet de roulement (9) destiné à un joint multipode (1), comportant un moyen formant bague intérieure (11) destiné à recevoir un tourillon (8) d'une partie d'extrémité d'arbre (7), un moyen formant bague extérieure (12), un chemin de roulement (15) étant disposé du côté extérieur du moyen formant bague extérieure (12), pour permettre un mouvement de roulement sur une partie tulipe (10), une pluralité d'éléments de roulement (17) lesquels sont disposés entre le moyen formant bague intérieure (11) et le moyen formant bague extérieure (12), les éléments de roulement (17) étant réalisés sous la forme de rouleaux, et un moyen formant cage (18), les éléments de roulement (17) étant disposés dans le moyen formant cage (18), le moyen formant cage (18) étant réalisé sous la forme d'une cage centrale, les rouleaux étant guidés dans une zone centrale par la cage centrale et faisant saillie librement dans les zones de roulement des deux côtés de la cage centrale.
EP17706666.9A 2016-02-05 2017-02-03 Galet de roulement pour joint multipode Ceased EP3411605A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016201776.4A DE102016201776B4 (de) 2016-02-05 2016-02-05 Laufrolle für ein Podegelenk
PCT/DE2017/100077 WO2017133733A1 (fr) 2016-02-05 2017-02-03 Galet de roulement pour joint multipode

Publications (1)

Publication Number Publication Date
EP3411605A1 true EP3411605A1 (fr) 2018-12-12

Family

ID=58108374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17706666.9A Ceased EP3411605A1 (fr) 2016-02-05 2017-02-03 Galet de roulement pour joint multipode

Country Status (7)

Country Link
US (1) US11193530B2 (fr)
EP (1) EP3411605A1 (fr)
JP (1) JP6890601B2 (fr)
KR (1) KR20180107128A (fr)
CN (1) CN108700126B (fr)
DE (1) DE102016201776B4 (fr)
WO (1) WO2017133733A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112727917B (zh) * 2021-01-25 2022-04-15 河南科技大学 一种低摩擦力矩的滚子轴承

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Also Published As

Publication number Publication date
JP6890601B2 (ja) 2021-06-18
DE102016201776A1 (de) 2017-08-10
CN108700126B (zh) 2021-11-05
JP2019505743A (ja) 2019-02-28
KR20180107128A (ko) 2018-10-01
CN108700126A (zh) 2018-10-23
US20210172473A1 (en) 2021-06-10
DE102016201776B4 (de) 2017-10-05
WO2017133733A1 (fr) 2017-08-10
US11193530B2 (en) 2021-12-07

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