WO2018172492A1 - Coussinet de palier - Google Patents

Coussinet de palier Download PDF

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Publication number
WO2018172492A1
WO2018172492A1 PCT/EP2018/057376 EP2018057376W WO2018172492A1 WO 2018172492 A1 WO2018172492 A1 WO 2018172492A1 EP 2018057376 W EP2018057376 W EP 2018057376W WO 2018172492 A1 WO2018172492 A1 WO 2018172492A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer sleeve
bearing bush
support element
support
core
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
PCT/EP2018/057376
Other languages
German (de)
English (en)
Inventor
Philipp Werner
Hilrich Kardoes
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.)
Vibracoustic SE
Original Assignee
Vibracoustic SE
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 Vibracoustic SE filed Critical Vibracoustic SE
Priority to EP18713215.4A priority Critical patent/EP3601839A1/fr
Priority to CN201880002888.9A priority patent/CN109477536A/zh
Publication of WO2018172492A1 publication Critical patent/WO2018172492A1/fr
Anticipated expiration legal-status Critical
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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
    • F16F1/3876—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions by means of inserts of more rigid material
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3863—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type characterised by the rigid sleeves or pin, e.g. of non-circular cross-section

Definitions

  • the present invention relates to a bearing bush for pressing into a receiving eye of a chassis, in particular a subframe, comprising a core, an outer sleeve surrounding the core of a first material and the core and the outer sleeve interconnecting elastomer body.
  • a bushing of the type mentioned is used in a chassis of a motor vehicle, for example, to dampen the forces or shocks occurring when rolling over bumps introduced
  • a conventional bushing which may also be referred to as an elastomeric bush, has a core, an outer sleeve surrounding the core, and an elastomeric body interconnecting the core and the outer sleeve.
  • plastic As a material for the outer sleeve.
  • the reason for this is often seen in a complex contouring of the outer sleeve, which is easily and inexpensively displayed by means of plastic.
  • an outer sleeve made of plastic contributes to weight savings.
  • plastic-specific functionalities such as the improved weldability compared to metal, can be the cause of the use of plastic as a material for the outer sleeve.
  • a bearing bush for a chassis of a motor vehicle which has an inner core, an outer sleeve and a Elastomer body which connects the inner core and the outer sleeve together.
  • the outer sleeve is made of plastic and provided with a press-fit reinforcing element for fixing the outer sleeve in the receptacle.
  • the press-fit reinforcing element is designed as a ring element and inserted into a recess introduced into the outer sleeve or integrally connected to the outer sleeve.
  • the press-fit reinforcement element exerts a force on the receiving eye when the bearing bush is pressed into the receiving eye, thus increasing the pressing-out force of the bearing bush.
  • the present invention has for its object to provide a bearing bush, which ensures an improved press fit within awaveges over its entire life.
  • the bushing according to the invention for pressing into a receiving eye of a chassis, in particular a subframe, has a core, an outer sleeve surrounding the core of a first material and the core and the outer sleeve interconnecting elastomeric body, wherein a support member is provided of a second material, which radially supports the outer sleeve when pressed into the receiving eye.
  • the support element When the bearing bush is pressed in, the support element directs the load applied to the outer sleeve directly into the receiving eye by means of static friction. In addition, the support element reduces the free surface of the external sleeve in contact with the receiving eye as an interference fit. As a result, the material of the outer sleeve can not flow radially inward in the region of the support element, so that a stress relaxation of the outer sleeve is prevented. The support element thus effectively prevents the outer sleeve can plastically deform radially inwardly when pressed into the receiving eye. Rather, the support element causes the material of the outer sleeve only in the longitudinal direction, ie in Axial direction of the bearing bush, can flow.
  • the bearing bush has a high extrusion force over its entire service life.
  • the expression force is understood to mean that force which is required in order to press the bearing bush out of the receiving eye.
  • the support element supports the outer sleeve radially from the inside.
  • the support element counteracts the radially inwardly directed force when pressed onto the outer sleeve.
  • the support element may rest on an inner side of the outer sleeve or be integrated in the outer sleeve.
  • the support element exerts a radially outwardly directed force on the outer sleeve.
  • the free surface is to be understood as meaning the inner surface of the outer sleeve.
  • the bushing can also be designed as a hydraulically damping bushing.
  • Such a bearing bush can also be referred to as a hydraulic bushing.
  • a hydraulic bushing has at least two working chambers filled with a liquid, which are connected to one another in a fluid-conducting manner via a channel. During a relative movement from core to outer sleeve or vice versa, one of the two working chambers is compressed. As a result, the fluid therein flows through the channel into the other working chamber. As a result, a damping and / or eradication effect is achieved.
  • the elastomeric body has elastomeric membranes which limit the working chambers on the front side.
  • the elastomeric membranes may be connected via a connection structure with the outer sleeve.
  • the connection structure may be formed as a plastic cage or support rings.
  • the second material has a lower tendency to relax and / or a lower tendency to creep than the first material.
  • Creep (also retardation) of a material is its time- and temperature-dependent, plastic deformation under constant load.
  • a measure of the creep is the creep module.
  • a high propensity for relaxation thus results in a rapid decrease in extrusion forces with increasing time.
  • the support element consisting of the second material does not relax or relax much slower than the outer sleeve consisting of the first material, the support element exerts a force on an inner surface of the outer sleeve when the bearing bush is pressed into the receiving eye.
  • the support element prevents radially inwardly directed deformation of the outer sleeve when the bearing bush is pressed into the receiving eye.
  • the support element causes the outer sleeve when pressed into the receiving eye to expand or flow substantially only in the longitudinal direction of the bearing bush. Since the outer sleeve can not deform radially inwardly when pressed into the receiving eye, a stress relaxation of the outer sleeve is prevented, so that the bias of the press fit in the receiving eye at high ambient temperatures and over the entire life of the bushing can be maintained.
  • the bearing bush over its entire life a constant Auspresskraft, ie the force that is required to push the bushing in the axial direction of the receiving eye out, so that at high axial forces pushing out of the bearing bush is avoided from the receiving eye.
  • the support element is only elastically deformed when pressing the bushing in the receiving eye.
  • the first material is a plastic
  • the second material is a metal or a plastic.
  • An existing out of a plastic outer sleeve has a low weight and is inexpensive to manufacture.
  • complex geometries can be displayed cost-effectively.
  • the plastic of the outer sleeve may be a fiber reinforced plastic with a low fiber content.
  • the plastic of the support element has a low tendency to relax compared to the plastic of the outer sleeve.
  • the less prone to relaxation plastic may be a fiber reinforced plastic.
  • the fiber content of the support element is at least 40 wt .-%.
  • the plastic the support element may be formed from a structure wound with glass fibers unidirectionally reinforced tape with an orientation of the fibers in the circumferential direction of the bearing bush.
  • the support element is a ring element, a sleeve element or a window tube.
  • a trained as a ring element support member advantageously has an outer tube and an inner tube, which are connected to each other via an elastomeric element.
  • the support element can be manufactured separately and then mounted on a core, in particular an inner tube, or inserted into the outer sleeve.
  • the inner tube pushed onto the core and the outer tube can be inserted into the outer sleeve and connected to this materially bonded, in particular welded.
  • the sleeve element, the outer tube and / or the inner tube may be made of metal and / or plastic.
  • the sleeve element, the outer tube and / or the inner tube of a tube made of metal, plastic or fiber reinforced plastic, in particular with a unidirectional circumferentially arranged fiber reinforcement can be separated or it can be wound from a unidirectional tape become.
  • the outer tube is materially connected to the outer sleeve, then the outer tube is preferably made of plastic or the outer tube is made of metal and has a weldable with the outer sleeve coating, such as a polymer layer on.
  • a trained as a window tube support member has two ring elements, which are interconnected by webs.
  • the window tube is made of plastic.
  • the support element is coated with an elastomer or polymer layer.
  • the support element can be used in addition to its support function for sealing a liquid-filled working chamber. If the support element is coated with an elastomer layer, then it is made sufficiently thin that the elastomer is chambered and thus the supporting effect does not decrease at all or only negligibly over time. If the support element is designed as a ring element, the elastomer layer is advantageously connected to the elastomer element.
  • the sleeve member be coated on the outer peripheral side with the elastomer or polymer layer, or the sleeve member is completely embedded in the elastomer or polymer layer.
  • the polymer layer is materially bonded to the outer sleeve, in particular the polymer layer is welded to the outer sleeve.
  • An outer peripheral elastomeric layer may also have depressions as long as the remaining elastomer layer remains sufficiently chambered to allow the remaining elastomer layer to be recessed sufficiently
  • the elastomer layer has at least one sealing element.
  • the sealing element improves the sealing of a liquid-filled working chamber of the bearing bush.
  • the sealing element is arranged on an outer side of the support element or the elastomer layer, so that the sealing element bears against the outer sleeve.
  • the elastomer or polymer layer has a plurality of sealing elements.
  • the sealing element is designed as a protruding Elastomervorsprung so that it rests in the mounted state under bias to the outer sleeve.
  • the sealing element is disposed within a recess introduced into the elastomer or polymer layer so that the sealing element can deform there during assembly, so that the remaining elastomer layer bears directly against the outer sleeve and is sufficiently chambered there, so that the supporting effect in the course the time does not decrease at all or only negligibly.
  • the support element consists of a unidirectional fiber-reinforced plastic strip, which is wound into a ring.
  • the plastic band is also referred to as unidirectional tape or UD tape.
  • the length of the support element in the axial direction of the bearing bush is at least one third of the length of the contact surface of the outer sleeve with the receiving eye.
  • the support element is positively, non-positively and / or materially connected to the outer sleeve.
  • the support element can be used with oversize in the outer sleeve, so be pressed.
  • the support member can be used without oversize in the outer sleeve, so only positive fit, wherein a bias voltage is applied to the support element during the pressing of the bearing bush in the receiving eye.
  • the support member may be glued or welded to the outer sleeve.
  • the support element and the outer sleeve are advantageously made of a plastic or different weldable plastics and / or fiber-reinforced plastics with the highest possible, but still weldable fiber contents or the support element is coated with a polymer layer.
  • the support element may be materially connected to the outer sleeve by means of laser transmission welding.
  • the materials of the outer sleeve and the support element must be welded together.
  • the transmittance of the outer sleeve such as the absorptivity of the support member with respect to the laser is high. This is achieved in that the outer sleeve has a sufficiently low in terms of its wall thickness in the welding area content of fibers and additives to show a low laser absorption and laser scattering and thus to ensure a high transmission.
  • the material of the support element must be chosen so that the plastic or fiber-reinforced plastic has a lower creep compared to the outer sleeve and includes, for example, particularly high fiber contents, but may not be so high that they prevent welding.
  • the support element can also be made of metal, but the support element for welding must be coated with a meltable coating, such as a polymer.
  • the outer sleeve has a high laser transmittance of at least 5% in the contact surface.
  • the support element is connected by encapsulation cohesively and / or positively connected to the outer sleeve.
  • the support element is integrated in the outer sleeve.
  • the support element is wound from a glass fiber unidirectionally reinforced tape, it is advantageous if the tape is wound onto a core in an injection molding machine and then overmolded.
  • the support member may be a ring of a pipe, which is reinforced with unidirectional glass fibers, are separated and either inserted for encapsulation in the injection molding machine and molded or mounted in an injection-molded outer sleeve form-fitting, non-positive and / or cohesive.
  • the support element is inserted into the outer sleeve and / or pressed.
  • the outer sleeve is connected in a simple and cost-effective manner with the outer sleeve.
  • the support element has an outer diameter which is larger than an inner diameter of the outer sleeve.
  • the support member has an excess over the outer sleeve, so that the support member by means of a press fit in the outer sleeve already at
  • the outer sleeve is provided with a coating.
  • the coating may be of a thermoplastic elastomer (TPE). If the coating is applied in the area of the weld, then a laser-transparent TPE is to be used.
  • the outer sleeve has a radially inwardly projecting projection on which the support element can be applied.
  • the projection provides for optimal placement of the support ring and it prevents migration of the support member in an axial direction of the outer sleeve.
  • the load path of the axial forces, which are dissipated via the axial stop does not pass over the supporting ring.
  • the support element is fixed by means of a clip connection within the receiving eye.
  • the outer sleeve to form the clip connection on a locking lug which cooperates with the support member to prevent migration of the support member in the axial direction against the press-fitting of the support ring in the outer sleeve of the outer sleeve.
  • the clip connection in particular the latching nose, preferably acts with the radially It's a projecting lead together.
  • the support member abuts the projection at its first axial end, and at its second axial end, the support member bears against the latching lug.
  • the support element is fixed by means of a clip connection within the outer sleeve, slippage of the support ring during the press-fitting process can be effectively prevented and other measures, for example an adhesive for material-locking connection of the support element to the outer sleeve, are dispensed with.
  • an adhesive for material-locking connection of the support element to the outer sleeve are dispensed with.
  • the elastomeric body is vulcanized to the support element.
  • an adhesive is applied to both the inside and the outside of the support member to provide a bond between the support member and the elastomeric body during the vulcanization process.
  • the outer sleeve has a high laser transmittance.
  • the support element can be welded to the outer sleeve.
  • the outer sleeve has a sufficiently low fiber content depending on the wall thickness. Due to the sufficiently low fiber content and the associated high degree of transmission, the support element can be welded to the outer sleeve.
  • the elastomer or polymer-coated support element or the support rings of a windowpane, which serve as the attachment structure of the elastomeric body, in particular the elastomeric membranes, to the outer sleeve can be fixed to the outer sleeve by means of laser transmission welding.
  • the materials of the outer sleeve and the support rings or the elastomer, or the polymer must be welded together, the transmittance of the outer sleeve must be high as the degree of absorption of the elastomer, the polymer or the support rings with respect to the laser.
  • FIG. 1 shows a cross section through a bearing bush according to a first embodiment, which is pressed into a receiving eye.
  • Embodiment which is pressed in a receiving eye
  • FIG 3 shows a cross section through a bearing bush according to a third embodiment, which is pressed into a receiving eye.
  • FIG. 4 shows a cross section through a bearing bush according to a fourth embodiment
  • FIG. 5 shows a cross section through a bearing bush according to a fifth embodiment, which is pressed into a receiving eye.
  • FIG. 6 shows a cross section through a bearing bush according to a sixth
  • Embodiment which is pressed in a receiving eye
  • FIG. 7 shows a cross section through a bearing bush according to a seventh embodiment with a support element according to a second embodiment
  • FIG. 8 shows a cross section through a support element according to a third embodiment
  • FIG. 9 shows a cross section through a support element according to a fourth embodiment
  • FIG. 10 shows a cross section through a support element according to a fifth embodiment
  • FIG. 1 1 shows a cross section through a support element according to a sixth
  • a bearing bush 10 is shown, which is pressed into a receiving eye 12 of a chassis, not shown, of a motor vehicle.
  • the bushing 10 has a core 14 with a central bore 16 for attachment of the bearing bush 10 to a motor vehicle part, not shown, a surrounding the core 14 outer sleeve 18 and a core 14 and the outer sleeve 18 interconnecting elastomer body 20.
  • the outer sleeve 18 is made of a plastic or a fiber-reinforced plastic and has at a first end a radially outwardly directed first flange portion 22 which abuts the end of the receiving eye 12, and a radially inwardly directed second flange portion 24.
  • the elastomer body 20 is firmly bonded to the outer sleeve 18, in particular vulcanized and has a first axial stop 26 in the region of the first flange portion 22 and a second axial stop 28 in the region of the second flange portion 24.
  • a support element 30 is embedded in the outer sleeve 18.
  • the support member 30 is formed as a sleeve member 31.
  • the support member 30 is made of a material having a lower tendency for stress relaxation than the material of the outer sleeve 18.
  • the support member 30 may be made of a metal or a plastic, in particular of a fiber-reinforced plastic whose fiber content is at least 40 wt .-%.
  • the support member 30 may be wound from a carbon fibers and / or glass fibers unidirectionally reinforced tape.
  • the support element 30 is integrally and / or positively connected to the outer sleeve 18 by encapsulation. As a result, the support element 30 is integrally embedded in the outer sleeve 18.
  • the support member 30 is wound from a unidirectionally reinforced glass and / or carbon fiber tape, it is advantageous if the tape is wound onto a core in an injection molding machine and then overmolded. In this case, marks may appear from the supporting points of the tape on the core on the inside of the outer sleeve 18.
  • the support member 30 may be separated as a ring or sleeve member 31 from a tube reinforced with unidirectional glass fibers and either inserted into the injection molding machine for injection molding. be placed and umsphtzt or in an injection-molded outer sleeve form-fitting, frictionally and / or materially mounted.
  • the support member 30 is completely surrounded by the outer sleeve 18. This requires that first an inner plastic ring is injected, then the tape is wound on, before the outer sleeve 18 is molded onto this structure. In addition, the support member 30 is held in position in an injection mold and then encapsulated on both sides. However, not shown retaining marks on the outer sleeve 18 remain visible.
  • the support member 30 supports the outer sleeve 18 when pressed into the receiving eye 12 radially from the inside and derives the applied in the outer sleeve 18 load directly by means of static friction in the receiving eye 12.
  • the support element 30 reduces the free surface of the outer sleeve 18 which is in press-fitting contact with the receiving eye 12. As a result, the material of the outer sleeve 18 can not radially inwardly flow in the region of the support element 30, so that stress relaxation of the outer sleeve 18 is prevented.
  • the support member 30 thus effectively prevents the outer sleeve 18 can plastically deform radially inwardly when pressed into the receiving eye 12, but the material of the outer sleeve 18 can flow only in the longitudinal direction, ie in the axial direction A of the bearing bush 10.
  • the bias of the interference fit in the receiving eye 12 over the entire life of the bushing 10 is largely maintained even at high ambient temperatures.
  • the bearing bush 10 has a high extrusion force over its entire service life, that is, the force which is required to push the bearing bush out of the receiving eye.
  • a second embodiment of the bearing bush 10 is disclosed, which differs from the first embodiment in that the support member 30 is disposed within the outer sleeve 18.
  • the support element 30 bears against an inner side of the outer sleeve 18.
  • the support element 30 can be fixed in the outer sleeve 18 in a form-fitting, force-fitting and / or material-locking manner.
  • the support member 30 may have an outer diameter which is larger than an inner diameter of the outer sleeve 18.
  • the support member 30 is fixed by means of an interference fit in the outer sleeve 18.
  • the support member 30 may have an undersize compared to the inner diameter of the outer sleeve 18, so that the support member 30 is inserted into the outer sleeve 18, and only when pressing the bearing bush 10 into the receiving eye 12, a bias on the support member 30 is applied.
  • the support element 30 may be provided with a coating of adhesive to connect the support member 30 cohesively with the inside of the outer sleeve 18.
  • an adhesion promoter may be applied as a coating to the support element 30, in order to materially connect the support element 30 to the inside of the outer sleeve 18 and, on the other hand, to produce a material connection of the support element 30 with the elastomer body 20 during the vulcanization.
  • the outer sleeve 18 has a projection 32 projecting radially inward against which the support element 30 rests.
  • a third embodiment of the bearing bush 10 is shown, which differs from the first embodiment in that the support member 30 is fixed by means of a clip connection within the outer sleeve 18.
  • the clip connection prevents migration of the support member 30 in the axial direction A from the outer sleeve 18, as may occur, for example during the Einpressvorgangs the bearing in the receiving eye 12.
  • the outer sleeve 18 has a radially inwardly projecting latching lug 34, which bears against a first end of the support member 30 and cooperates with the radially inwardly projecting projection 32 which bears against a second end of the support member 30.
  • a fourth embodiment of the bearing bush 10 is shown, which differs from the other embodiments in that the outer sleeve 18 has a radially inwardly projecting elevation 36, which is used for setting gradients. mens proportions of the elastomer body 20 is used.
  • the survey 36 brings when pressing the bushing 10 in a receiving eye 12 a bias in the elastomer body 20 a.
  • the exemplary embodiment of the bearing bush 10 shown in FIG. 4 differs from the other exemplary embodiments in that the outer sleeve 18 has no flange sections 22, 24 for forming axial stops for absorbing forces in the axial direction A.
  • a fifth embodiment of the bearing bush 10 is shown, which differs from the other embodiments in that the bearing bush 10 is formed as a hydraulic bushing.
  • the embodiment illustrated in FIG. 5 shows a radially damping hydraulic bushing. But it can also be equipped with the support member 30 axially dampening hydraulic bushings or biaxially damping hydraulic bushings.
  • 20 working chambers 38 are formed within the elastomer body, which are filled with a liquid and liquid-conductively connected to each other via a damping channel 40.
  • the working chambers 38 are frontally bounded by elastomeric membranes 41 of the elastomer body 20.
  • the damping channel 40 is introduced into channel shells 42, which are assigned to the support element 30.
  • Elastomeric membranes 41 end provided with support rings 44a, 44b made of plastic, where the axial stops 26, 28 are vulcanized.
  • the support rings 44a, 44b are materially connected to the outer sleeve 18.
  • the support rings 44a, 44b are connected to the outer sleeve 18 by means of laser transmission welding.
  • the outer sleeve 18 is made of a plastic which has a high laser transmittance.
  • the outer sleeve 18 is made of a fiber reinforced plastic, it is required that the outer sleeve 18 has a low fiber content to achieve a high transmittance.
  • the support element 30 does not extend over the entire overall height of the outer sleeve 18. So remains for a first weld 51 a a Contact surface between the first support ring 44a and the outer sleeve 18 and for a second weld 51b, a contact surface between the second support ring 44b and the outer sleeve 18 is obtained. In this way, both support rings 44a, 44b can be materially connected to the outer sleeve 18 in order to connect the components in a liquid-tight manner and / or to transmit forces.
  • the core 14 has a shoulder 46, which is encased by the elastomer of the elastomer body 20 and forms a radial stop 48.
  • the radial stop 48 cooperates with the channel shell 42 and the support member 30. As a result, the support element 30 lies in the direct load path of the radial stop 48.
  • a sixth embodiment of the bearing bush 10 which differs from the fifth embodiment in that the radial stop 48 is outside the working chambers 38, so that the support member 30 is located outside the load path of the radial stop 48.
  • the radial stop 48 is formed from two ring elements 50, with a respective ring element 50 being pushed onto the elastomer body 20 surrounding the core 14 on the end side.
  • the ring elements 50 cooperate with the elastomer of the elastomeric membranes 41 surrounding the support rings 40.
  • a seventh embodiment of the bearing bush 10 which has between the core 14 and the outer sleeve 18, a first elastomeric bearing 52, a second elastomeric bearing 54, an intermediate membrane 56 and a compensating diaphragm 58.
  • the first elastomeric bearing 52 and the intermediate diaphragm 56 define a first fluid chamber 60
  • the intermediate diaphragm 56 and the balancing diaphragm 58 define a second fluid chamber 62.
  • Both fluid chambers 60, 62 are filled with fluid and fluidly connected to each other via a damping passage 40.
  • the first elastomeric bearing 52 has a first elastomeric body 64, which is approximately conical in shape and connected in a material-locking manner to the core 14 and the outer sleeve 18, in particular vulcanized on.
  • the second elastomeric bearing 54 serves as a support member 30 and supports the outer sleeve 18 when pressed into a receiving eye radially from the inside and derives the applied in the outer sleeve 18 axial load directly by friction in the receiving eye.
  • the support member 30 is formed as a ring member 76 and has a second elastomeric body 66, an inner tube 68a, and an outer tube 70a.
  • the outer tube 70a has a lower creep than the outer sleeve 18 and therefore serves as a support element.
  • the second elastomer body 66 is firmly bonded to the inner tube 68a and the outer tube 70a, in particular vulcanized.
  • the attachment of the second elastomeric bearing 54 to the core 14 and the outer sleeve 18 takes place via the tubes 68a, 70a.
  • the inner tube 68a is pushed onto the core 14, in particular pressed on, and the outer tube 70a is inserted into the outer sleeve 18.
  • the outer tube 70a is laser beam welded to the outer sleeve 18 via a first and second
  • the outer sleeve 18 In order for the outer tube 70a to be welded to the outer sleeve 18, the outer sleeve 18 must have a high laser transmittance of at least 5% in the contact surface and the outer tube 70a must have a high degree of absorption and weldability. This is achieved by the fact that the outer sleeve 18 has a sufficiently low content of fibers and additives in relation to its wall thickness in the welding area in order to show a low laser absorption and laser scattering and thus to ensure a high transmission.
  • the material of the outer tube 70a must be chosen so that the plastic or fiber-reinforced plastic has a lower creep compared to the outer sleeve 18 and for example includes particularly high fiber contents, but may not be so high that they prevent welding. Further, the outer tube 70a may also be metal, but the outer tube 70a must be coated with a fusible coating, such as a polymer, for welding.
  • the second elastomeric bearing 54 is adjoined by the balancing diaphragm 58 made of an elastomeric material comprising an inner tube 68b and an outer tube 70b having. So that the second fluid chamber 62 is made liquid-tight, sealing elements, not shown, are provided, for example, on the inner tube 68b and the outer tube 70b.
  • the inner tube 68b is pushed onto the core 14, in particular pressed, and the outer tube 70b is inserted into the outer sleeve 18 14, in particular pressed.
  • the intermediate diaphragm 56 is disposed of an elastomeric material having an inner tube 68c and an outer tube 70c.
  • the inner tube 68c is pushed onto the core 14, in particular pressed, and the outer tube 70c is inserted into the outer sleeve 18, in particular pressed.
  • the outer tube 70c of the damping channel 40 is introduced.
  • the intermediate membrane 56 is made of an elastomeric material.
  • the compensating diaphragm 58 take over the function of the support member 30.
  • the outer tube 70c then supports the outer sleeve 18 when being pressed into a receiving eye.
  • the outer tube 70c may be positively, non-positively and / or materially connected to the outer tube 18 and be made of metal, plastic or fiber-reinforced plastic.
  • the outer tube 70c is provided with a polymer layer.
  • the outer tube 70c is coated with an elastomeric layer 72, the outer tube 70c is press-fitted into the outer sleeve 18.
  • the second elastomeric bearing 54 may be welded to the outer sleeve 18 as previously described.
  • a second embodiment of the support member 30 is shown, which is formed as a sleeve member 31 and coated with a polymer or elastomer layer 72. If the illustrated support member 30 is coated with a polymer, then it is one possible embodiment of the supporting outer tube 70a of FIG. 7. However, if it is coated with an elastomeric layer, then it would be a possible embodiment of a supporting outer tube 70b.
  • the sleeve ment 31 is made of metal. Via a polymer layer 72, the support element 30 can be welded to the outer sleeve 18 by laser transmission welding by melting the polymer layer 72 and integrally bonding it to the outer sleeve 18.
  • the elastomer layer 72 of the support member 30 also serves to seal the fluid-filled chambers.
  • a third embodiment of the support member 30 is shown, which differs from the second embodiment in that the elastomer layer 72 surrounds the sleeve member 31 only on the outer peripheral side. Further, recesses 74 are formed in the elastomer layer 72. However, the depressions 74 may only be so pronounced that the elastomer of the elastomer layer 72 is still sufficiently chambered when the support element 30 is inserted into the outer sleeve 18, so that the supporting effect does not decrease at all or only negligibly over time.
  • the support element 30 is designed as a ring element 76 and has an inner tube 68, an outer tube 70 and an inner tube 68 and the outer tube 70 interconnecting elastomeric element 78.
  • the outer tube 70 and the inner tube 68 may be made of metal and / or plastic.
  • the elastomer element 78 forms the elastomer layer 72 on the outer tube 70.
  • the support element 30 shown in FIG. 10 can be used as an intermediate membrane 56 or as a compensation membrane 58 or as an additional radial bearing without a hydraulic function.
  • a fifth embodiment of the support member 30 is shown, which differs from the fourth embodiment in that the elastomer layer 72 sealing elements 80 in the form of protruding Elastomervorsyogngen 82, which are arranged in recesses 74.
  • the sealing elements 80 are designed so that they protrude radially in the uninstalled state on the remaining elastomer layer 72 and so rest in the mounted state under bias to the outer sleeve 18. They can deform into the depressions 74.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

La présente invention concerne un coussinet de palier (10) à monter dans un oeillet de réception (12) d'un châssis, ledit coussinet présentant une partie centrale (14), un manchon extérieur (18) entourant la partie centrale (14), lequel se compose d'un premier matériau et un corps en élastomère (20) reliant la partie centrale (14) et le manchon extérieur (18) l'une à l'autre, un élément d'appui (30) composé d'un second matériau soutenant radialement le manchon extérieur (18) lors de l'insertion par pression dans l'oeillet de réception (12).
PCT/EP2018/057376 2017-03-23 2018-03-22 Coussinet de palier Ceased WO2018172492A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18713215.4A EP3601839A1 (fr) 2017-03-23 2018-03-22 Coussinet de palier
CN201880002888.9A CN109477536A (zh) 2017-03-23 2018-03-22 支承衬套

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102017106289.0A DE102017106289B4 (de) 2017-03-23 2017-03-23 Lagerbuchse
DE102017106289.0 2017-03-23
PCT/EP2018/052266 WO2018171963A1 (fr) 2017-03-23 2018-01-30 Coussinet
EPPCT/EP2018/052266 2018-01-30

Publications (1)

Publication Number Publication Date
WO2018172492A1 true WO2018172492A1 (fr) 2018-09-27

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PCT/EP2018/052266 Ceased WO2018171963A1 (fr) 2017-03-23 2018-01-30 Coussinet
PCT/EP2018/057376 Ceased WO2018172492A1 (fr) 2017-03-23 2018-03-22 Coussinet de palier

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PCT/EP2018/052266 Ceased WO2018171963A1 (fr) 2017-03-23 2018-01-30 Coussinet

Country Status (4)

Country Link
EP (1) EP3601839A1 (fr)
CN (1) CN109477536A (fr)
DE (1) DE102017106289B4 (fr)
WO (2) WO2018171963A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019109608B4 (de) * 2019-04-11 2021-06-24 Vibracoustic Ag Elastisches Lager
DE102019113847B3 (de) * 2019-05-23 2020-03-26 Benteler Automobiltechnik Gmbh Lageranordnung
DE102019117846B4 (de) * 2019-07-02 2022-10-20 Vorwerk Autotec Gmbh & Co. Kg Lagerbuchse mit einem Kernelement, einem Fensterrohr und einem daran befestigten Außenrohr
DE102020126561B4 (de) * 2020-10-09 2022-04-28 Vibracoustic Se Lager und Lageranordnung
CN114374038A (zh) * 2022-03-22 2022-04-19 浙江阿莱西澳智能装备科技有限公司 一种用于新能源汽车底盘结构和电池包托盘的碳纤维复合材料
EP4600511A1 (fr) * 2024-02-08 2025-08-13 Rosenberger Hochfrequenztechnik GmbH & Co. KG Manchon de support pour fixer un blindage de câble, ensemble connecteur de câble et procédé de fabrication d'un ensemble connecteur de câble

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DE2825075A1 (de) * 1977-06-15 1979-01-18 Wallace Murray Corp Torsionsschwingungsdampfer
JPH04370426A (ja) * 1991-06-18 1992-12-22 Toyoda Gosei Co Ltd 防振ブッシュ
DE19937714A1 (de) * 1999-08-10 2001-03-15 Daimler Chrysler Ag Hülsengummifeder, sowie Verfahren zu deren Herstellung
EP1908987A2 (fr) * 2006-10-07 2008-04-09 Jörn GmbH Coussinet élastique avec amortissement hydraulique
DE102010018536A1 (de) 2010-04-28 2011-11-03 Trelleborg Automotive Germany Gmbh Elastische Lagerbuchsenanordnung, elastisches Lager und Verfahren zur Herstellung der elastischen Lagerbuchsenanordnung

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DE19605859C2 (de) * 1996-02-16 1998-07-02 Metzeler Gimetall Ag Lagerbuchse
JP4052705B2 (ja) * 1998-01-14 2008-02-27 本田技研工業株式会社 液体封入ブッシュ
FR2812241A1 (fr) * 2000-07-28 2002-02-01 Michelin & Cie Articulation elastique a raideur radiale variable
FR2818718B1 (fr) * 2000-12-22 2003-07-25 Hutchinson Manchon antivibratoire et vehicule automobile comportant un tel manchon
DE102006007160A1 (de) * 2006-02-16 2007-08-30 Jörn GmbH Gelenklager, insbesondere für ein Fahrwerk eines Nutzfahrzeugs
EP2522878B1 (fr) * 2011-05-11 2015-02-18 TrelleborgVibracoustic GmbH Douille et procédé de fabrication de douilles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825075A1 (de) * 1977-06-15 1979-01-18 Wallace Murray Corp Torsionsschwingungsdampfer
JPH04370426A (ja) * 1991-06-18 1992-12-22 Toyoda Gosei Co Ltd 防振ブッシュ
DE19937714A1 (de) * 1999-08-10 2001-03-15 Daimler Chrysler Ag Hülsengummifeder, sowie Verfahren zu deren Herstellung
EP1908987A2 (fr) * 2006-10-07 2008-04-09 Jörn GmbH Coussinet élastique avec amortissement hydraulique
DE102010018536A1 (de) 2010-04-28 2011-11-03 Trelleborg Automotive Germany Gmbh Elastische Lagerbuchsenanordnung, elastisches Lager und Verfahren zur Herstellung der elastischen Lagerbuchsenanordnung

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WO2018171963A1 (fr) 2018-09-27
DE102017106289B4 (de) 2019-09-12
EP3601839A1 (fr) 2020-02-05
DE102017106289A1 (de) 2018-09-27
CN109477536A (zh) 2019-03-15

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