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
  • F16C11/00—Pivots; Pivotal connections
  • F16C11/04—Pivotal connections
  • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
  • F16C11/0614—Ball-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
• • 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
  • F16C11/00—Pivots; Pivotal connections
  • F16C11/04—Pivotal connections
  • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal 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
  • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
  • F16C23/02—Sliding-contact bearings
  • F16C23/04—Sliding-contact bearings self-adjusting
• • 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
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
  • F16B2200/63—Frangible connections

Definitions

• the invention relates to a joint and / or bearing assembly according to the preamble of claim 1 and a motor vehicle with one or more such joint and / or bearing assembly (s), in particular in suspension and / or steering parts.
• EP 0 505 719 B1 shows a joint arrangement which has a partially spherical joint body which is movable in the mounted state in a joint shell. This is secured at its axially outer ends via pressure rings against extract.
• Such hinge assemblies can be used to meet high requirements with external radial tolerances of a few hundredths of a millimeter and can be forced into an outer sleeve body, such as an end portion of a wheel carrier or strut, with high axial forces of typically ten to fifteen kilonewtons.
• the sleeve body Even with an equally accurate manufacture of the sleeve body, it may come to a cover with a radially inwardly acting force, which is passed directly to the joint shell on the inner wall of the joint housing of this joint housing via the direct contact of the joint shell.
• a comparatively hard and brittle high-performance plastic for example, a PEEK plastic that meets high pressure-heat requirements and therefore often compared to a POM plastic prone to flow above about 8O 0 C, this leads to adverse influence on the joint properties by, for example, greater compressive force on the joint body, which changes the torque to move the joint body and thus in a vehicle ride comfort , or even breaks or cracks in the joint socket.
• the invention is based on the problem to avoid damage or use restrictions by the action of a radial inward force during pressing.
• a load of the joint shell by radial force during pressing is at least almost completely avoided.
• the radial force is prevented by deformation of at least a portion of the force compensation element of the joint shell, so that it can remain unaffected even in very brittle and thin-walled training.
• the force compensation element is effective once when pressing the joint and / or bearing assembly into a sleeve body, it is prevented that occur during operation too high path tolerances without external force in the joint assembly.
• the effective only during pressing tolerance compensation can be made possible in particular by a plastic deformability with radial force application.
• the inner wall of the housing can be involved in the deformation by the deformable region presses in radially inwardly pointing force application of the housing in the inner wall.
• the deformable region can then itself have a high strength, which in particular is at least as great as that of the joint shell, so that a new weak point is not created by the force compensation element.
• Particularly low can be formed as at least an outwardly projecting ring or ring segment projection, so that this projection serves as a support on the inner wall and the rest of the force-compensating element at least in the unloaded condition is not applied to the entire surface of the inner wall, but during pressing to the deformable region this support can swing slightly.
• the force compensation element is interposed joint housing and joint shell and can be both a large area in contact with an inner wall of the joint housing and with an outer wall of the joint shell and thereby prevent radially inwardly acting force from the joint shell.
• the force-balancing element can surround the joint shell like a sleeve over almost the entire length of the joint arrangement, so that the joint shell nowhere has a direct contact with the inner wall of the joint housing. This can on the outside - as well as the intended for receiving the fully assembled joint assembly sleeve body inside - parallel walls be formed without conicity.
• two force-equalizing elements may be provided axially spaced from one another, wherein in the intermediate region, the joint shell must not have contact with the joint housing in order to prevent transmission of radial force from the housing into the joint shell.
• the joint shell may be formed there resiliently and, for example, on the side facing the joint body having an annular channel as a lubricant reservoir, which simultaneously provides a radially inwardly facing deformation path.
• a joint arrangement according to the invention can be claimed both on rotation about the pin axis in the manner of a bearing as well as on bending and thus versatile, for example within chassis and / or steering parts of motor vehicles, for example for connection of spring struts or for supporting wheels over more or less transversely arranged handlebars in multi-link axles.
• FIG. 1 is a longitudinal sectional view of a first embodiment of a joint according to the invention with two axially spaced and rounded to the joint shell force-equalizing elements,
• FIG. 2 shows a view similar to FIG. 1 with two force compensation elements running straight at an angle to the joint shell
• FIG. 3 shows a view similar to FIG. 2 with two force compensation elements formed as polygons for the joint shell
• FIG. 3 shows a view similar to FIG. 2 with two force compensation elements formed as polygons for the joint shell
• FIG. 4 shows a similar view as FIG. 3 with two spring-like and separate from end rings force compensation elements
• FIG. 7 shows a view similar to FIG. 6 with a complete progression of a force compensation element
• FIG. 8 is a view similar to FIG. 7 of an embodiment with an intermediate layer, FIG.
• FIG. 9 shows a view similar to FIG. 8 of an embodiment with three protruding annular formations of the force compensation element, FIG.
• FIG. 10 is a view similar to FIG. 8 of an embodiment with a wave profile on the force compensation element.
• the joint arrangement 1 shown in FIG. 1 comprises an axially extended joint body 2 with a substantially spherical shape 3 in the axially middle region. This is held movably in a joint shell 4, which is often slotted, the radial outer surface 5 of the joint shell 4 according to FIG forms on average a rounding, the three-dimensional axis 6 rotates.
• the inner surface 7 of the joint shell 4 is in this example in section through a polygon approximated, resulting in the kinks annular circulating lubricant reservoirs 8, which is not mandatory.
• the joint shell 4 can be designed to save costs and weight overall made of plastic, being increasingly used to meet high pressure-temperature requirements relatively hard and brittle PEEK plastics instead of the softer, but at high temperatures to flow prone POM plastics.
• the space between the joint body 2 and the joint shell 4 is at least partially filled with a lubricant which serves to reduce friction between the contact surfaces.
• the lubrication can be provided in particular for the entire projected life of the joint 1.
• a hinge assembly 1 also act in the manner of a bearing and is also referred to here generally as a joint and / or bearing assembly.
• the joint shell 4 is radially further outwardly surrounded by a sleeve-shaped joint housing 9, the axial ends 10 can be closed after assembly of the joint 1, for example by a roll forming.
• a joint 1 can therefore also be referred to collectively as a sleeve joint and in a step following its assembly with a press fit at an axial compressive force of typically several to several tens of kilonewtons into a surrounding sleeve body - not shown here -, such as a through hole forming end portion a wheel carrier or a strut mount, are pressed axially.
• the sleeve joint 1 can be made with diameter tolerances in the range of a few hundredths of a millimeter, as well as the internal dimension of the receiving sleeve body.
• at least one force compensation element against radial stress is arranged radially between the surrounding joint housing 9 and the joint shell 4, according to FIG. 1 two mutually axially spaced force compensation elements 11, 12. These stand both with the radially inner wall of the joint housing 9 and with the outer wall the joint shell 4 in contact.
• the force compensation elements 11, 12 are effective at an overlap between the surrounding sleeve body and the pressed-in joint 1 and thereby ensure a holding radially inwardly acting force from the joint shell 4.
• FIGS. 5 and 6 the region 13, 14 of the principle of equal force compensation elements 211, 212 according to FIG. 3 is shown in detail:
• a force acting radially in the direction of the arrow c two effects of different strength can be selected depending on the material selection and pairing
• this area 14 may dig into the inner wall of the surrounding joint housing 9, so that it participates in the deformation.
• external force is kept away from the further inner joint shell 4 without significant change of direction. This remains therefore with sufficient accuracy of fit of joint 1 and sleeve body deformation. The torque therefore remains at least almost independent of the press-in coverage.
• the force-balancing elements 11, 12 can remain free of deformation outside the regions 13, 14, whereby the gap 15 between the elements 11, 12 and the joint housing 9 can be reduced by the radial force.
• the areas 13, 14 then serve as supports, around which the elements 11, 12 swivel in with a radial introduction of force and act like a spring.
• the joint 1 maintains its exact tolerances of the joint shell 4 and takes place without an external introduction of force no change in the direction of parts in the joint 1.
• This is ensured in a plastic deformation of the regions 13, 14 in particular when the force compensation elements 11, 12 have at least the strength of the joint shell 4 and thus even outside of the deformable regions 13, 14 provide a stable support of the joint shell 4 unaffected by the pressing force.
• the force compensation elements 11, 12 can be integrally formed with each one axial securing effect end rings, which engage in grooves 16 of the joint housing 9 and are secured against axial withdrawal by rolling the edge portions 10. This one-piece reduces the number of parts used.
• the bearing shell 104 has a rectilinear outer surface, but is unchanged on its inner surface 7 with respect to FIG.
• the force compensation elements 111, 112 are adapted only to the changed outer contour of the joint shell 4, without being changed in their function.
• the outer surface 205 of the joint shell 204 is also formed like the inner surface 7 polygonal.
• the force compensation elements 211, 212 are adapted thereto.
• the joint 301 shows as force compensation elements 311, 312 two spring rings, which are elastically deformable as a whole and no separate deformable portions 13, 14 need. They are here separated from the axial end rings 317, 318 formed. Again, however, could alternatively be a one-piece.
• the deformation of the force compensation elements 311, 312 takes place here elastic and can therefore be effective during operation.
• the force compensation elements 11, 12, 111, 112, 211, 212 only intercept radial force during the pressing in and do not carry out any radial paths in the subsequent operation which would make the force-over-travel curve of the joint flatter.
• the force compensation element 412 is provided with an elastically deformable intermediate layer to the wall of the joint housing 9.
• an intermediate layer ensures that even without Outside force introduction a way of the parts 2, 204 in the direction of the arrows a, b is possible and so far puts the force-displacement curve very flat. On the other hand, the curve remains almost the same even over a high stress, so that the quality of the joint does not change.
• the deformable regions are again formed as formations of the force compensation elements 512, 612, in this case as three sawtooth-like ring formations 514 or three circumferential wave combs 614. These need not always be the same height ,
• the joint shell 4, 104, 204, 304 over its entire axial course either no contact with the inner wall of the surrounding joint housing 9, or is at a possible contact surface - not shown - as by a bead on the opposite, the joint body 2 facing side radially inward yielding.
• a radial inward force on the joint housing 9 is therefore for the function of the joint shell 4, 104, 204, 304 in any case not limiting. This is not reduced in width and thus exerts no increased pressure on the joint body 2.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Pivots And Pivotal Connections (AREA)
• Vehicle Body Suspensions (AREA)
• Fluid-Damping Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36157694

Family Applications (1)

Country Status (10)

Families Citing this family (12)

Family Cites Families (25)

• 2004
  • 2004-11-23 DE DE102004056575A patent/DE102004056575B4/de not_active Expired - Fee Related
• 2005
  • 2005-11-18 BR BRPI0518048-1A patent/BRPI0518048A/pt not_active IP Right Cessation
  • 2005-11-18 CN CNA2005800401580A patent/CN101065587A/zh active Pending
  • 2005-11-18 ZA ZA200704760A patent/ZA200704760B/xx unknown
  • 2005-11-18 EP EP05816602A patent/EP1815155A1/de not_active Withdrawn
  • 2005-11-18 WO PCT/DE2005/002080 patent/WO2006056171A1/de active Application Filing
  • 2005-11-18 KR KR1020077011946A patent/KR20070084589A/ko not_active Application Discontinuation
  • 2005-11-18 MX MX2007006016A patent/MX2007006016A/es not_active Application Discontinuation
  • 2005-11-18 US US11/719,869 patent/US20090060633A1/en not_active Abandoned
  • 2005-11-18 JP JP2007541678A patent/JP2008520918A/ja not_active Withdrawn

Non-Patent Citations (1)

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