EP4348069A1 - Palier sphérique - Google Patents

Palier sphérique

Info

Publication number
EP4348069A1
EP4348069A1 EP21732206.4A EP21732206A EP4348069A1 EP 4348069 A1 EP4348069 A1 EP 4348069A1 EP 21732206 A EP21732206 A EP 21732206A EP 4348069 A1 EP4348069 A1 EP 4348069A1
Authority
EP
European Patent Office
Prior art keywords
bearing
rotation
spherical
mount
section
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.)
Pending
Application number
EP21732206.4A
Other languages
German (de)
English (en)
Inventor
Olaf Richter
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.)
Huebner GmbH and Co KG
Original Assignee
Huebner GmbH 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 Huebner GmbH and Co KG filed Critical Huebner GmbH and Co KG
Publication of EP4348069A1 publication Critical patent/EP4348069A1/fr
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623Construction or details of the socket member
    • F16C11/0628Construction or details of the socket member with linings
    • F16C11/0633Construction or details of the socket member with linings the linings being made of plastics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623Construction or details of the socket member
    • F16C11/0628Construction or details of the socket member with linings
    • F16C11/0633Construction or details of the socket member with linings the linings being made of plastics
    • F16C11/0638Construction or details of the socket member with linings the linings being made of plastics characterised by geometrical details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/06Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0685Manufacture of ball-joints and parts thereof, e.g. assembly of ball-joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/20Sliding surface consisting mainly of plastics
    • F16C33/201Composition of the plastic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/20Sliding surface consisting mainly of plastics
    • F16C33/208Methods of manufacture, e.g. shaping, applying coatings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/1459Coating annular articles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20Thermoplastic resins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20Thermoplastic resins
    • F16C2208/36Polyarylene ether ketones [PAEK], e.g. PEK, PEEK
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00Shaping
    • F16C2220/02Shaping by casting
    • F16C2220/04Shaping by casting by injection-moulding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50Positive connections
    • F16C2226/70Positive connections with complementary interlocking parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/10Railway vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00Articles relating to transporting
    • F16C2326/20Land vehicles

Definitions

  • the invention relates to a spherical bearing, in particular for the articulated connection of two vehicles, with the features of the preamble of claim 1.
  • the invention also relates to a bearing element for such a bearing and a vehicle combination of two vehicles which are connected to such a bearing.
  • Spherical bearings for the articulated connection of two vehicles in a vehicle combination provide the necessary degrees of freedom for the movement of the two vehicles relative to one another.
  • the degrees of freedom of movement that the spherical bearing provides include, in particular, a pivoting or buckling movement about a vertical axis.
  • a bearing must generally allow, at least to a certain extent, rotational movements about rotational axes transverse to the vertical axis.
  • such a spherical bearing must be designed to support the axial forces that occur.
  • the spherical bearings that are used for the articulated connection of two vehicles are also known under the term radial spherical plain bearings. These comprise, as bearing elements mounted so as to be movable relative to one another, an outer ring and an inner ring mounted so as to be rotatable in relation thereto.
  • a spherical bearing as part of an articulation between two articulated vehicles, for example an articulated bus or a rail vehicle, is e.g. B. known from the document EP 3 372 849 A1.
  • a convex bearing section of an inner bearing element is accommodated in a concave bearing seat of an outer bearing element.
  • so-called liners which are specially coated fabrics, are usually used in such bearings.
  • the liner has good adhesive properties on one surface, so that the liner is firmly connected to the bearing mount.
  • the other surface is designed to have good sliding properties and high wear resistance, so that the inner bearing element can slide well in the bearing seat.
  • a radial spherical plain bearing with an outer ring and an inner ring is known from document DE 10 2017 122 269 A1, wherein a lubricant chamber is provided with a liquid lubricant, which can be guided through lubricant channels into the space between the outer ring and the inner ring.
  • a radial spherical plain bearing is known from the document DE 10 2006 004 759 A1, which has a sliding coating with a solid lubricant.
  • wear occurs on the anti-friction coating, which ensures that the two bearing elements are lubricated.
  • the inner bearing element has a micro-textured outer surface which creates pockets for wear.
  • document DE 10 2010 007 791 B4 discloses a method for producing a radial spherical plain bearing, in which the two bearing elements are produced by injection molding.
  • the inner ring is fitted with a spacer provided before it is introduced into an injection mold in which the outer ring is injected.
  • the spacer is then dissolved or removed, creating the desired clearance.
  • the sliding surface is formed directly by the bearing elements made of plastic.
  • the object of the invention is to provide a spherical bearing which is improved with regard to the service life and/or the load capacity, in particular the absorption of radial and axial loads, in particular without an increased outlay for the production of such a bearing.
  • the object of the invention is achieved by a spherical bearing having the features of independent claim 1.
  • the object of the invention is also achieved by a bearing element having the features of claim 14 and a vehicle combination having the features of claim 15.
  • a spherical bearing according to the invention for the articulated connection of two vehicles has two bearing elements.
  • the first bearing element has a bearing seat which, in particular, has a substantially convex shape.
  • the second bearing element has a complementarily formed, z. B. convex, bearing portion which is movably received in the bearing seat, so that the second bearing element is rotatably mounted relative to the first bearing element.
  • the spherical bearing can in particular be designed as a radial joint bearing, the first bearing element being designed as an outer ring of the radial joint bearing and the second bearing element being designed as an inner ring rotatably mounted in relation thereto.
  • a sliding element is provided between the two bearing elements.
  • the sliding element forms a sliding surface in the area of the bearing mount, which has a significant influence on the mechanical properties of the bearing, e.g. B. on its breakaway torque and the mobility of the two bearing elements relative to each other.
  • the sliding element In order to maintain the desired sliding properties over the long term, it must be ensured that the sliding element remains in the area between the two bearing elements during operation. According to the invention, this is achieved in that the sliding element is positively connected to the first or second bearing element with respect to a rotation about at least one axis of rotation. i.e. the positive locking is effective at least in relation to a rotation about a rotation axis, while a rotation about a different rotation axis can be made possible.
  • the form-fitting connection can also be designed in such a way that rotation about all axes of rotation of the spherical bearing is effectively prevented.
  • the sliding element can also be used in other ways, e.g. B. integrally connected to the bearing element.
  • sliding elements can also be provided on both bearing elements.
  • the sliding element can extend over the entire area in the area of the bearing mount.
  • the sliding element can be designed as a continuous coating of the bearing mount or of the bearing section. But it can also be sufficient if it is only extends over a partial area, with several sliding elements arranged spaced apart from one another optionally also being able to be provided.
  • the bearing according to the invention can be used in particular for the articulated connection of two vehicles.
  • the bearing can also be used for other purposes, e.g. B. for the articulated connection of parts of a vehicle or for the rotatable mounting of machine components.
  • the vehicles that can be connected by such a spherical bearing can be z. B. be rail vehicles such as trams, but also other articulated vehicles from the field of public transport or from the commercial vehicle sector.
  • the vehicles can be designed in such a way that they are also drivable when they are not connected. However, it may also be the case that the vehicles are only roadworthy in the vehicle combination, e.g. B. in the case of a towing vehicle with an attached car or trailer o. ⁇ .
  • a connection section can be provided on each bearing element, through which it can be connected directly or indirectly to the vehicle.
  • the connecting sections can be designed in one piece with the respective bearing element or they can be connected to the respective bearing element as separate components.
  • the sliding element can be molded directly onto the first or second bearing element, so that it is simultaneously arranged on and attached to the respective bearing element during production. In this way, a good form-fitting connection can also be implemented, since a counter-contour that is complementary to the contour of the bearing element can automatically form on the sliding element during the injection molding process. Thus, an optimal engagement of the counter-contour in the contour of the bearing element and thus a secure anchoring of the sliding element on the bearing element can be achieved.
  • any injection-moldable material can be used for the sliding element be used, e.g. B. a plastic-based material or a metallic material.
  • the sliding element can be produced in particular on the basis of a thermoplastic material.
  • a sliding element can accordingly be manufactured and finished in a simple manner, e.g. B. optimally adjust the contour of the sliding surface formed to the contour of the other hand movable bearing element.
  • such a sliding element is characterized by good sliding properties and high abrasion resistance.
  • a thermoplastic material for the sliding element z. B. polyethetetherketone (PEEK) can be used, with this additives can be added.
  • PEEK polyethetetherketone
  • other thermoplastics can also be used as the basis for the sliding element. These should be characterized in particular by high abrasion resistance and chemical resistance. Eligible are e.g. B.
  • the bearing seat is open on two opposite sides, as a result of which a main axis of rotation is defined.
  • the second bearing element can thus extend through the bearing receptacle, which is open towards both, and is arranged such that it can rotate about the main axis of rotation.
  • Such a configuration essentially corresponds to that of a radial spherical plain bearing, in which the outer ring is open on both sides and the inner ring is accommodated in the outer ring so that it can rotate about the main axis of rotation.
  • the spherical bearing must provide several degrees of freedom of movement in order to be able to enable the relative movements that occur between the vehicles to be connected.
  • the second bearing element is therefore preferably mounted such that it can rotate about three axes of rotation relative to the first bearing element.
  • a rotation about the main axis of rotation of the camp allows z.
  • the bearing according to this embodiment allows, at least to a certain extent, rotational movements about rotational axes transverse to the main rotational axis, which allows pitching or rolling movements of the vehicles relative to one another.
  • the sliding element is positively connected to the first or second bearing element with respect to rotation about all three axes of rotation.
  • this is not mandatory. Rather, it can also be sufficient if the sliding element is connected to the bearing element in a form-fitting manner only in relation to a rotation about two of the three axes of rotation.
  • rotation about the two axes of rotation transverse to the main axis of rotation should be prevented by the positive connection of the sliding element to the bearing element.
  • a rotation of the sliding element about the main axis of rotation can definitely be accepted.
  • the surface of the bearing section or the bearing receptacle can have at least one depression, into which a projection formed by the sliding element engages.
  • the sliding element can also have a recess into which a projection formed by the bearing section or the bearing receptacle engages. This can be easily realized, especially in terms of production technology, by contouring the surface of the bearing mount or the bearing section within or after the production thereof, e.g. B. by milling or laser processing o. ⁇ . B. be formed automatically when molding the sliding element to the bearing portion or the bearing mount.
  • the positive connection of the sliding element to the bearing element can be realized by roughening the surface of the bearing section or the surface of the bearing receptacle.
  • the roughening forms indentations into which corresponding projections of the sliding element engage and thus anchor the latter to the bearing element by positive locking.
  • the surface can have a regular or irregular structure.
  • Grooves can be introduced at regular or irregular intervals. A depth of the structuring or roughening in the range of 100 ⁇ m can already be sufficient to realize a form-fitting connection.
  • At least one continuous circumferential groove protrudes in the bearing mount or the bearing section in the circumferential direction of the bearing mount or the bearing section. If a corresponding counter-contour of the sliding element engages in this groove, a form-fitting connection can consequently be established.
  • the groove is preferably oriented transversely to the main axis of rotation, as a result of which rotation of the sliding element about the two axes of rotation transversely to the main axis of rotation can be prevented. This effectively prevents the sliding element from being carried out of the area of the bearing mount.
  • the depression and/or the groove which is provided on the bearing element to form the form-fitting connection, can be designed without an undercut or with an undercut.
  • a recess can be designed in the form of a tapering bore or a bore with an undercut contour.
  • a particularly good anchoring can be achieved by an undercut contour.
  • it can be advantageous not to have an undercut contour since high shearing forces can occur in this area, which could lead to the projection engaging in the depression or groove tearing off.
  • the indentation and/or the groove merges continuously, ie without edges, into the surface of the bearing receptacle or bearing section.
  • the bearing mount can have one or more grooves with a sinusoidal or otherwise rounded contour, so that force peaks are largely avoided.
  • the flanks of the groove prevent the sliding element from being able to twist in a direction transverse to the course of the groove.
  • the first bearing element can be designed in one piece. According to one embodiment, however, the first bearing element is divided and has two bearing element halves that are detachably connected to one another.
  • the bearing is preferably divided in the direction of the main axis of rotation of the bearing. If the bearing element is divided into two bearing element halves, the contour of the bearing mount can be designed particularly well and easily, since the surface lying on the inside in the installed state is easily accessible for machining. Overall, a particularly good bearing seat can be achieved in this way.
  • the first bearing element is formed with two bearing element halves
  • a sliding element designed according to the invention is arranged in particular in each bearing element half and is positively connected to the respective bearing element half.
  • the sliding element can be molded separately onto each half of the bearing element.
  • the surface contour of the sliding element can be corrected by surface treatment so that it is optimally adapted to the contour of the second bearing element.
  • the second bearing element can then be arranged between the two bearing element halves, so that its bearing section is accommodated in the bearing receptacle.
  • the two bearing element halves, z. B. means
  • Screws are joined together, with which the spherical bearing is ready for use.
  • the invention relates to a bearing element for a spherical bearing, wherein the bearing element has a bearing mount or a bearing section on which at least one sliding element is arranged.
  • the sliding element is connected to the bearing element in a form-fitting manner with respect to a rotation about at least one axis of rotation of the bearing.
  • the invention relates to a combination of vehicles with at least two vehicles that are connected to one another by a spherical bearing according to the invention.
  • Figure 1 shows a spherical bearing in a perspective view
  • FIG. 2 shows the bearing according to FIG. 1 in a view cut along its main axis of rotation
  • 3 shows a bearing element half in a perspective view
  • FIG. 4 shows the bearing element half according to FIG. 3 in a sectional view
  • FIG. 5 shows a detail of the bearing element half according to FIG. 4
  • FIG. 6 shows the bearing element half according to FIG.
  • FIG. 1 and 2 an embodiment of a spherical bearing 1 according to the invention is shown, which is designed in the manner of a radial pivot bearing.
  • the bearing 1 has a first bearing element 2 and a second bearing element 3 which is rotatably mounted in relation thereto.
  • the second bearing element 3 is rotatably mounted about a main axis of rotation 4 .
  • rotary movements about the axes of rotation 5, 6 running transversely thereto are also possible, at least to a certain extent.
  • the first bearing element 2 is designed as an outer ring running around the main axis of rotation 4 in the circumferential direction.
  • the first bearing element 2 has a bearing mount 7 for receiving the second bearing element 3 .
  • the bearing receptacle 7 has an essentially convex shape, with a wall 8 delimiting the bearing receptacle 7 having a structure 9, as further explained elsewhere.
  • the bearing mount 7 is open on both sides.
  • the first bearing element 2 is not formed in one piece, but has two bearing element halves 10, 11 which are detachably connected to one another. Specifically, the first bearing element 2 is divided in the area of its equator, in which the bearing seat 7 has its largest inner diameter.
  • the two bearing element halves are each formed with a flange 12, 13.
  • bores for screws 14 are distributed in the circumferential direction around the main axis of rotation, through which the two bearing element halves 10, 11 can ultimately be connected to one another.
  • the second bearing element 3 can be easily inserted into the bearing seat 7 during assembly and by screwing the two bearing element halves 10, 11 together between the two bearing element halves 10, 11 are caught. It is therefore not necessary to reshape the first bearing element 2 after the second bearing element 3 has been inserted into the bearing mount 7 .
  • a high-strength and/or difficult-to-form material such as stainless steel, can be used for the first bearing element 2, which withstands the loads occurring during operation particularly well.
  • the second bearing element 3 is designed in the form of an inner ring with a through-hole 15. In the through-hole 15 z. B. be inserted a bolt to connect the bearing element 3 so with a vehicle or a corresponding connector.
  • the second bearing element 3 has a bearing section 16 with a spherical outer surface 17 .
  • the outer surface 17 has a shape that matches the bearing mount 7 so that the second bearing element 3 can rotate with its bearing section 16 , but ideally is held without play, especially in the direction of the main axis of rotation 4 .
  • the outer surface 17 of the second bearing element 3 does not lie directly against the wall 8 delimiting the bearing receptacle 7 .
  • a sliding element 18 is provided in the area of the bearing mount 7 , which forms a sliding surface 19 for the second bearing element 3 .
  • the sliding element 18 is designed as a coating which is applied to the wall 8 delimiting the bearing receptacle 7 .
  • it can be a PEEK coating, which is applied to the wall 8 in an injection molding process.
  • the connection to the first bearing element 2 is achieved on the one hand by an integral connection.
  • the structuring 9 provided in the wall 8 also achieves a form-fitting connection.
  • a plurality of depressions 20 in the form of grooves 21 are provided in the wall 8 in the direction of the main axis of rotation 4 . Projections 22 formed by the sliding element 18 engage in the grooves 21 .
  • the contour of the projections 22 automatically adapts to the shape of the grooves 21, so that the projections 22 optimally engage in the grooves 21.
  • the grooves 21 are oriented transversely to the main axis of rotation 4 . So an anchoring of the sliding element 18 is achieved on the bearing seat 7, the in particular against a rotation about the axes of rotation 5, 6 transverse to the main axis of rotation 4 is effective. This prevents the sliding element 18 from being able to move out of the area of the bearing mount 7 during operation, which could impair the sliding properties.
  • the contour of the grooves 21 is edge-free. i.e. these merge steadily into the wall 8, which is otherwise convex in shape. In this way, the risk of the projections 22 tearing off as a result of a notch effect can be minimized.
  • the bearing 1 has a ring-shaped component 23 as a further element, which serves as a wiper and/or seal.
  • the component 23 is arranged on the upper side of the upper bearing element half 10 and rests with its protruding edge 24 on the outer surface 17 of the second bearing element 3 .
  • the ingress of moisture and/or foreign bodies from above into the area of the bearing mount 7 can be prevented.
  • such a component can also be arranged on the opposite side.
  • a bearing element half 10 of the first bearing element 2 is shown in different views.
  • Various configuration options for the structuring 9 of the wall 8 are illustrated in particular with reference to FIGS.
  • the configuration and combination of grooves 21 as shown in the figures is only exemplary. There are others too
  • the bearing element half 10 has three rows of grooves 21 spaced apart from one another, viewed in the direction of the main axis of rotation 4 .
  • the main direction of extent of each groove 21 is oriented transversely to the main axis of rotation 4 .
  • the two outer grooves 21 are formed circumferentially in the circumferential direction of the bearing element half 10 . i.e. through these grooves 21 is primarily a positive connection with respect to a rotation around the
  • Axes of rotation 5, 6 transverse to the main axis of rotation 4 achieved.
  • the main axis of rotation 4 itself cannot be prevented with these grooves 21 .
  • a plurality of grooves 21 are provided in the middle row, each of which extends over only a partial circumference of the bearing element half 10 and is arranged at a distance from one another in the circumferential direction. The engagement of the projections 22 of the sliding element 18 in the grooves 21 of the middle row thus not only achieves a form-fitting fastening in relation to a rotation about the axes of rotation 5, 6 transversely to the main axis of rotation 4, but also in relation to a rotation about the main axis of rotation 4.
  • the grooves 21 each have rounded flanks and transition into the wall 8 of the bearing element half 10 without any edges. In this way, a notch effect, which could lead to the projections 22 shearing off, can be largely avoided.
  • the indentations 20 can also have undercut contours, as a result of which particularly good anchoring of the sliding element on the bearing mount can be achieved.
  • the indentations can be designed as bores with a diameter that increases with the penetration depth.
  • a cross section of the bore can, for. B. be approximately mushroom-shaped. Any edges are preferably rounded, so that force peaks in the area of the edges can be largely avoided during operation.
  • an undercut contour can be advantageous, since higher temperatures can be reached in this area as a result of the diesel effect, which can lead to better bonding of the thermoplastic material to the usually metallic surface of the bearing element .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un palier sphérique (1), en particulier pour relier deux véhicules de manière articulée, comprenant un premier élément de palier (2) et un second élément de palier (3). Le premier élément de palier (2) a une zone de réception de palier (7), et le second élément de palier (3) a une section de palier (16) qui est reçue dans la zone de réception de palier (7) de telle sorte que le second élément de palier (3) est supporté de manière rotative par rapport au premier élément de palier (2). Un élément de coulissement (18) est disposé dans la région de la zone de réception de palier (7) entre les éléments de palier (2, 3), ledit élément de coulissement étant relié à l'un des deux éléments de palier (2, 3) par complémentarité de forme par rapport à une rotation autour d'au moins un axe de rotation (4, 5, 6).
EP21732206.4A 2021-06-02 2021-06-02 Palier sphérique Pending EP4348069A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2021/064886 WO2022253436A1 (fr) 2021-06-02 2021-06-02 Palier sphérique

Publications (1)

Publication Number Publication Date
EP4348069A1 true EP4348069A1 (fr) 2024-04-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21732206.4A Pending EP4348069A1 (fr) 2021-06-02 2021-06-02 Palier sphérique

Country Status (2)

Country Link
EP (1) EP4348069A1 (fr)
WO (1) WO2022253436A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB839396A (en) * 1957-06-12 1960-06-29 Viktor Langen Improvements in ball and socket joints
DE1115144B (de) * 1959-03-26 1961-10-12 Lemfoerder Metallwarengesellsc Kugelgelenk fuer Lenk- und Steuergestaenge von Kraftfahrzeugen
DE10329804B4 (de) * 2003-07-01 2006-03-02 Auto-Entwicklungsring-Sachsen Gmbh Kugelgelenk
DE102005005667A1 (de) * 2005-02-08 2006-08-17 Daimlerchrysler Ag Kugelgelenk und eine Verfahren zu dessen Herstellung
DE102006004759A1 (de) 2006-02-02 2007-08-09 Schaeffler Kg Gleitlager für insbesondere Dreh- und Kippbewegungen
US8735481B2 (en) * 2008-05-01 2014-05-27 Roller Bearing Company Of America, Inc. Self-lubricating surface coating composition for low friction or soft substrate applications
DE102010007791B4 (de) 2010-02-12 2012-07-12 Aktiebolaget Skf Verfahren zur Herstellung eines Gelenklagers und Gelenklager
DE202017101399U1 (de) 2017-03-10 2017-03-30 HÜBNER GmbH & Co. KG Sphärisches Lager als Verbindung zwischen zwei Fahrzeugen oder Fahrzeugteilen
DE102017122269A1 (de) 2017-09-26 2019-03-28 Schaeffler Technologies AG & Co. KG Dichtungsanordnung, insbesondere für Radialgelenklager
CN111237329B (zh) * 2020-01-17 2021-04-02 株洲季元科技有限责任公司 一种轨道车辆抗侧滚扭杆装置球铰关节结构

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