WO2016193197A1 - Kraftübertragungsbauteil für ein schienenfahrzeugrad - Google Patents
Kraftübertragungsbauteil für ein schienenfahrzeugrad Download PDFInfo
- Publication number
- WO2016193197A1 WO2016193197A1 PCT/EP2016/062116 EP2016062116W WO2016193197A1 WO 2016193197 A1 WO2016193197 A1 WO 2016193197A1 EP 2016062116 W EP2016062116 W EP 2016062116W WO 2016193197 A1 WO2016193197 A1 WO 2016193197A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power transmission
- wheel
- transmission component
- spring element
- absorber mass
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0006—Construction of wheel bodies, e.g. disc wheels
- B60B17/0024—Construction of wheel bodies, e.g. disc wheels with noise reducing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0006—Construction of wheel bodies, e.g. disc wheels
- B60B17/002—Construction of wheel bodies, e.g. disc wheels with counter-balance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B17/00—Wheels characterised by rail-engaging elements
- B60B17/0027—Resilient wheels, e.g. resilient hubs
- B60B17/0031—Resilient wheels, e.g. resilient hubs using springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/133—Noise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/30—Railway vehicles
Definitions
- the present invention relates to a power transmission device for a rail driving ⁇ zeugrad which can be, for example, used in rail transport, for example inrangbah ⁇ NEN. Furthermore, the present invention relates to a wheel for a rail vehicle with such a power transmission component.
- Wheels for rail vehicles ie for railways, subways and in particular for trams, are all subject to the known problem that arise in the curve passage with such rail vehicle wheels unwanted noise emissions.
- the known from the prior art wheels for rail vehicles "squeak" in tight curves passages Such a ⁇ squeaking arises in all known from the prior art rail vehicle wheels, regardless of the design of the wheel .. It is also known that in certain operating situations a drone of individual wheels of rail vehicles may occur.
- the rail vehicle wheels known from the prior art comprise at least one wheel body having the hub of the wheel and a wheel tire surrounding the wheel body. On the wheel tire, the flange is provided, which holds the wheel or the wheelset in the lane.
- Rail vehicle wheels with such a construction are known, for example, from the documents EP 0 872 358 A1, DE 196 10 780 A1 and DE 2 324 117.
- the documents DE 196 10 780 AI and DE 2 324 117 disclose rubber-mounted rail vehicle wheels, which are widely used today.
- at least one rubber insert is provided between the wheel body and the tire.
- the rubber inserts are primarily the suspension of the rail vehicle wheels and not the fight against unwanted noise emissions.
- the rail vehicle wheel according to EP 0 872 358 A1 comprises a disc-shaped wheel body and a running gear surrounding the wheel body or the Tires.
- a Radschallabsorber in the form of an intermediate layer of a viscoelastic composition and adhering to the intermediate layer cover layer of a metallic material or of a carbon fiber reinforced material.
- the wheel ⁇ sound absorber covers the middle disc part of the disc-shaped wheel body, starting from a hub to the transition to the wheel tire.
- the wheel mass absorbers provided on the surfaces of the wheel body, the additionally required space, as well as the associated high costs are to be regarded as disadvantageous.
- the unwanted noise emissions arise in the known from the prior art wheels by the start of the wheel flange of the outside wheel to the rail, whereby a tension is introduced in a wheel set consisting of two wheels. Due to the start of the outside wheel with the wheel flange to the rail, the inside wheel gets into vibration due to the resulting from the start in the wheel set tension. The wheel vibrates in a frequency range in which the unwanted noise emissions and the squeaking noises are generated.
- Rubber-sprung wheels also heat up greatly due to the resulting from the suspension and the vibration damping deformation. This leads to a loss of energy, which leads to a self-heating of the rubber suspension in the wheel, especially in strongly springing wheels with relatively large spring travel when rolling the wheel. Furthermore, then the engine power can be brought to the rail only with a reduced efficiency. It is an object of the present invention to provide a power transmission device for railway vehicle wheels, which suppresses the undesired Ge Hurschemissi ⁇ ones and at the same time unnecessary energy losses are avoided Kgs ⁇ NEN.
- the power transmission component according to the invention can be used both in wheelsets and in loose wheelsets.
- a wheelset two wheels are rotatably mounted on a wheelset.
- a loose gear two wheels are rotatably mounted on a wheel carrier. If hereinafter a "wheel” or “wheel” is GESPRO ⁇ chen, this discussion refers to both the two above-mentioned forms of wheelsets or to the wheels of these two forms of wheel sets.
- the power transmission component according to the invention for a rail vehicle wheel is designed to be arranged between a wheel tire and a wheel body of a rail vehicle wheel and serves to transmit forces between these components when the rail vehicle wheel rolls on rails.
- the wheel tire can be supported on the wheel body via the power transmission component according to the invention.
- the power transmission component according to the invention has at least one elastic body and at least one vibration damping device.
- Vibration damping device comprises at least one absorber mass.
- the unwanted noise emissions underlying vibrations can be redeemed or
- the vibrations are caused by the start of the outside rail vehicle wheel to the rail.
- tension in the wheel set occurs between the wheel on the outside of the curve and the wheel on the inside of the curve, as a result of which vibrations in the region of an intrinsic shape of the inside wheel are generated.
- the Schwingungstilgungs is tuned with their natural frequency or with their natural frequencies to the natural mode vibrations and prevents by damping the unwanted noise emissions, such as squealing or roaring, by means of the force transmission component according to the invention.
- the power transmission component according to the invention can be designed in the form of a single Klot ⁇ zes or alternatively as a closed ring.
- the inven tion ⁇ proper power transmission component may be formed as a ring segment.
- the power transmission component according to the invention can be arranged in a force-transmitting manner in the desired number between the wheel tire and the wheel body of the rail vehicle.
- the elastic body may be made of rubber, an elastomer, a ther ⁇ tic elastomer or a silicone.
- the power transmission component according to the invention can provide different stiffnesses in different directions and thus also a different damping behavior in different directions.
- the power transmitting member may have a relatively high stiffness in lateral force Rich ⁇ processing thereby, wherein the stiffness in the normal force direction and in the circumferential direction is less high, so that the railway vehicle can continue to provide sufficient spring travel in the direction of normal force. In the normal force direction and in the circumferential direction, the power transmission component according to the invention may therefore be relatively soft.
- the at least one vibration-damping device may comprise at least one spring element.
- the at least one spring element can be connected to the at least one absorber mass.
- the at least one spring element can determine the permissible oscillation amplitude of the absorber mass.
- the at least one spring element can be connected to the at least one elastic body.
- the at least one spring element can be biased. In this way, the spring element can provide a high attenuation.
- the at least one spring element can be connected to the elastic body in such a way that the elastic body pretensions the at least one spring element in the state installed in the rail vehicle wheel.
- the elastic body can surround the at least one absorber mass in sections.
- the at least one spring element may be arranged on a portion of the power transmission component which is designed to rest on the wheel tire. In this case, the absorber mass can oscillate in the direction of the wheel body under load of the at least one spring element.
- At least one additional stiffening structure may be provided in the at least one elastic body.
- the rigidity of the power transmission component can be adjusted.
- the rigidity of the power transmission component in the transverse force direction can be set high via the at least one stiffening structure in order to be able to ensure the tracking of the rail vehicle wheel.
- the rigidity of the Power transmission via the at least one stiffening structure can be set lower, so that the power transmission member can provide a sufficiently large travel in this direction.
- the at least one auctioning ⁇ Fung structure the power density of the power transmission component or the elasti ⁇ rule body of the power transmitting member is increased.
- the force transmitting member accordingly requires less space, which can be used for the dimensioning and arrangement of the ⁇ At least one vibration damping device.
- At least one recess may be formed in the at least one elastic body.
- the at least one stiffening structure can be accommodated in the at least one recess in the elastic body.
- the at least one stiffening structure may comprise at least one thread insert.
- the at least one thread insert can produce a high rigidity in the lateral direction of force.
- At least one further elastic body can be accommodated in the at least one thread insert.
- the at least one elastic body may be made of a different material such as the material of the elastic body of the power transmission member.
- the received in the thread insert further elastic body is made of the same material as the elastic body of the power transmission component.
- the elastic body accommodated in the thread insert can thus form part of the at least one stiffening structure like the thread insert.
- the at least one thread insert can enclose the further elastic body.
- This material may be, for example, a fiber-reinforced material.
- the at least one thread insert can be circular in cross-section according to one embodiment.
- the force transmission component can have a very high rigidity in the direction of the transverse force.
- the stiffness in the normal force direction or in the direction in which pressure forces act on the power transmission component can on the at least one thread insert to be set relatively low.
- the circular thread insert can be deformed in the normal force direction by relatively small forces.
- the circular cross-section of the at least one thread insert can deform into an elliptical ⁇ shaped cross-section.
- the damping and the spring travel can be adjusted mainly via the elastic body of the power transmission component.
- the at least one thread insert thus makes it possible for the rail vehicle wheel to deflect in the normal force direction over a relatively large spring travel and yet nevertheless have increased rigidity in the transverse force direction.
- the vibration damping device can be viewed in the radial direction at least one radi al ⁇ outer damper mass and at least one in the fitted state in the rail vehicle wheel having radially inner damper mass in the fitted state in the rail vehicle.
- the two absorber masses can thus be arranged one above the other in the radial direction or in the normal force direction.
- At least one spring element is provided between the at least one radially outer absorber mass and the at least one radially inner absorber mass.
- the at least one radially outer absorber mass may have a step-shaped cross-section, wherein the at least one radially outer absorber mass may have an enlarged cross-section on its surface facing the wheel tire.
- the radially outer absorber mass and the radially inner absorber mass can move relative to one another in order to be able to damp vibrations.
- the vibration damping device may have at least two absorber masses which are adjacent to one another in the circumferential direction in the installed state.
- the two absorber masses are arranged serially, for example parallel to one another.
- two or more absorber masses may be provided.
- the at least one spring element can be provided between the radially outer absorber mass and the radially inner absorber mass.
- the at least one spring element can be prestressed via the at least one radially outer absorber mass and the at least one radially inner absorber mass.
- the absorber masses can interact with the elastic body, which can press the two absorber masses against each other to bias the spring element.
- the power transmission component may comprise at least two elastic bodies, between which the at least one vibration damping device is arranged.
- the at least two elastic bodies may be spaced apart from each other in order to accommodate the Schwingungstilgungseinrich ⁇ device between them.
- the power transmission member When two elastic bodies are arranged, the power transmission member can be supported by these two elastic bodies on the wheel tire and the wheel body.
- the resulting between the two elastic bodies clearance simplifies the assembly of Kraftübertragungsbau ⁇ part, since the at least one vibration damping device due to their Tilger- mass (s) is only slightly compressible. Since the power transmission component is installed during assembly under bias in a rail vehicle, the two elastic body can be compressed for mounting, without the least ⁇ least one vibration damping device would affect the assembly.
- the elastic body Since the elastic body has an increased power density due to the stiffening structure, it requires less installation space in the rail vehicle wheel. As a result, sufficient space for the at least one vibration damping device can be created.
- the power transmission component may comprise at least one current-bridging element.
- Power bridges are needed to close the necessary circuit for operating a rail vehicle.
- the power from the power source such as the overhead line or busbars, must be able to be returned to the rails and rails via the wheels.
- the elastic body of the power transmission component is designed to be insulating or has an insulating effect and thus isolates the wheel tire from the wheel body, a current-conducting connection between the wheel tire and the wheel body must be established via the at least one current bridge in the power transmission component.
- the power transmission component may have at least one contact surface for engagement with the wheel tire and at least one contact surface for engagement with the wheel body.
- the contact surfaces can be formed from the material of the elastic body.
- the elastic material of the elastic body may have a relatively high coefficient of friction. If the material of the elastic body has a relatively high coefficient of friction, good traction between the wheel body and the tire can be provided via the force transmission component. A good traction between the Wheel tire and the wheel body is necessary because the drive torque must be transmitted from the on ⁇ driven wheel body via the Kraftübertragungsbauteii frictionally to the wheel ⁇ tires. Rubber or an elastomer as a material for the elastic body have a high coefficient of friction and can thus transmit high Trakti ⁇ onsmomente.
- a metal part may further comprise at least be provided.
- the at least one sheet metal element or the at least one metal part can be connected to supply redemption device with the at least one spring element of the vibration, so that the said at least one plate member or extend at least one Fe ⁇ derelement between the at least one metal part and absorber mass.
- the at least one metal part or the sheet may have at least a predetermined curvature and Her ⁇ position a connection between the wheel tire and the Kraftübertragungsbau ⁇ part or between the wheel body and establish the power transmitting member.
- the metal or metal part can also form the contact surface.
- the at least one vibration damping device may be adjustable to predetermined vibration frequencies.
- the vibration frequencies occurring in a wheel tire, which generate the undesired noise emissions, the squeaking or the roar, are dependent on the state of departure of the rail vehicle wheel.
- the unwanted noise suppressing vibration damping properties of the power transmission component can be adjusted. This can be adjusted in particular via the choice of material for the elastic body or the Shore hardness of the material for the elastic body.
- the power transmission member can be set to a predetermined frequency band of frequencies to be damped.
- the frequency range to which the at least one vibration damping device is set preferably does not correspond to the vibration frequencies of the rail vehicle wheel when new, but to the vibration frequencies which occur in a partially worn rail vehicle wheel.
- the at least one stiffening structure may be a spring element.
- the Wenig ⁇ least one spring element may include a base portion and at least two extending away from the base portion spring arms. The base portion may define as a bearing surface for engagement with a wheel tire of a rail vehicle wheel.
- the spring arms of the spring element may extend in the direction of the at least one wheel body.
- the two spring arms can each have a ganib ⁇ section for abutment with the wheel body.
- the spring element shall ⁇ agreed spring paths can provide for the suspension of the wheel or the wheel tire, the spring arms may sections in the form of a rotated 90 degrees "V" aufwei ⁇ sen.
- the at least one vibration damping device with the at least one absorber mass be provided.
- a spring element the at least Einbauzu ⁇ standing radially outside the at least one damper mass may be provided.
- the at least one spring element may extend between the contact surface for engagement with the wheel tire and the at least one absorber mass.
- the Schwingungstilgungs worn can be adjusted over the radial extent or the thickness of the at least one spring element to a predetermined oscillation frequency.
- the vibration damping device can be tuned to different vibration frequencies in order to be able to effectively cancel these frequencies.
- the at least one absorber mass may extend with a distance predetermined by the radial extension of the at least one spring element substantially parallel to the contact surface.
- the surface of the absorber mass facing the contact surface may extend parallel to the contact surface.
- the predetermined by the spring element distance between the contact surface and the surface of the absorber mass facing this contact surface can remain constant over substantially the entire extent of this surface of the absorber mass substantially.
- the vibration damping device may thus comprise two vibration absorbers, each comprising a damper mass and a spring element.
- the two vibration absorbers of the vibration damping device can be arranged successively in the vertical direction or in the installed state in the radial direction. Thereby, the Schwingungstilgungs adopted the power transmission member to two vibration frequencies or two Vibration frequency ranges are tuned. Depending on requirements, embodiments with more than two absorber masses can also be provided.
- the power transmission member may include a suspension portion that is radially disposed within the vibration damping device in the installed state.
- the power transmission component may have two functional areas. In a first functional area, the vibration damping device can be arranged, wherein a second functional area is provided for the suspension of the rail vehicle wheel.
- the vibration damping device may be functionally associated with the wheel tire.
- the vibration damping device can accordingly be arranged radially outside the second functional region in the installed state.
- the competent for the suspension second functional area is designed less rigid than the Schwin ⁇ gungstilgungs worn having first functional area. This is due, inter alia, to the spring elements of the vibration damping device.
- the spring elements of the vibration damping device are stiffer than the elastic material of the elastic body in the second functional region.
- the spring elements of the vibration damping device usually have a larger cross-sectional area and a smaller thickness than the elastic material in the second functional area and are thus stiffer. Since the wheel tire is primarily responsible for the vibrations occurring and the associated unwanted noise, the Schwingungstilgungs adopted essentially for (er) eradication of the vibrations of the wheel tire. Although the second functional area responsible for the suspension can slightly influence the function of the vibration damping device, this is negligible due to the different stiffnesses of the two functional areas.
- the present invention further relates to a wheel for a rail vehicle, in particular for the rail transport.
- the wheel has a wheel hub having a hub and a wheel tire radially surrounding the wheel body.
- the wheel tire is supported on the wheel body via at least one power transmission component of the type described above.
- the power transmission components may be biased between the wheel tire and the wheel body.
- the power transmission member may abut an outer peripheral surface of the wheel body and an inner peripheral surface of the wheel tire.
- the power transmission member may make electrical contact between the wheel body and the tire.
- a plurality of power transmission components may be provided between the wheel tire and the wheel body. The Schwingungstilgungs foundeden these power transmission components can be adjusted zen to different Schwingungsfrequen ⁇ . In this way, different vibrations generated by a rail vehicle wheel can be damped at different frequencies.
- a first number of power transmission components with a damping mass and a second number of power transmission components with a radially outer and a radially inner damping mass may be provided between the wheel tire and the wheel body.
- the at least one vibration damping device can be set to a plurality of vibration damping frequencies.
- the at least one vibration canceling means may be set to an upper oscillation frequency range and a lower oscillation frequency range. If the at least one vibration damping device has a plurality of absorber masses, the at least one vibration damping device can be set to a plurality of vibration frequencies.
- the number of absorber masses can determine the number of adjustable oscillation frequencies. This means, for example, that a vibration damping device having two absorber masses has two eigenmodes, or is adjustable to two oscillation frequencies.
- the at least one thread insert has very good strength values. Due to the high strength of the at least one thread insert and the at least one elastic body may have an increased strength.
- the force transmission component according to the invention can be varied by the at least one stiffening structure specifically in its stiffness and strength. This can ensure that the stiffness in the lateral direction of force, which is to ensure the tracking, is relatively high.
- the stiffness of the power transmission component in the normal force direction should be set relatively low, so that the power transmission component provides relatively large spring travel and reduces the body sound entry into the rails or in the ground.
- FIG. 1 An exemplary embodiment will now be described with reference to the accompanying drawings. They show: perspective views of a power transmission component according to a first embodiment of the invention of the invention; a front view of the power transmission member according to a second embodiment of the invention; a sectional view taken along section line IV-IV in FIG. 3; a sectional view taken along the section line VV in FIG.
- FIG. 17 is a sectional view of another embodiment of the inven ⁇ tion.
- FIG. 1 shows a perspective view of the power transmission component 10.
- the power transmission component 10 has a first elastic body 12 and two ⁇ th elastic body 14. Between the elastic bodies 12, 14, the vibration damping device 16 can be seen.
- the first elastic body 12 and the second elastic body 14 are connected via a abutting portion 18.
- the contact section 18 has a contact surface 20.
- the contact portion 18 is with its contact surface 20 for engagement with a in FIG. 1 not shown wheel tire ⁇ formed.
- the abutment portion 18 is adapted to the profile of the inner peripheral surface of a wheel tire (not shown). Accordingly, the abutment surface 18 has a kink 22 which can receive a projection of a wheel tire (not shown).
- the elastic bodies 12, 14 are provided with recesses 24, 26.
- stiffening structures 28, 30 are accommodated, which are formed circular cylindrical. On the stiffening structures 28, 30 will be discussed in the further course of this description in detail.
- the vibration damping device 16 has a radially outer absorber mass 32 and a radially inner absorber mass 34 in the later installed state. Between the radially outer absorber mass 32 and the radially inner absorber mass 34, a spring element 36 is provided.
- the absorber masses 32 and 34 are partially embedded in the material of the elastic body 12, 14 and the abutment portion 18.
- the elastic bodies 12 and 14 extend from the abutment portion 18. On the elastic bodies 12, 14 of the contact surface 20 opposite abutment surfaces 38 and 40 are formed. Between the elastic bodies 12 and 14, a clearance is formed.
- FIG. 2 shows another perspective view of the power transmission component 10.
- the contact surfaces 38, 40 can be seen at the ends of the elastic bodies 12, 14 opposite the contact section 18.
- the contact surfaces 38, 40 are curved, with the curvature of the contact surfaces 38, 40 of the - -
- Curvature of the contact surface 10 can differ. However, the curvature of the contact surfaces 18, 38 and 40 may also be the same.
- the vibration damping device 16 can be seen between the elastic bodies 12, 14, the vibration damping device 16 can be seen.
- the vibration damping device 16 is associated with a clearance between the elastic bodies 12 and 14.
- the spring element 36 can be seen that the oscillation amplitude of the vibration damping device 16 also determines.
- FIG. 3 shows a front view of the power transmission member 10.
- the recesses 24, 26 in the elastic bodies 12, 14 are circular ⁇ forms.
- the circular recesses 24, 26 receive substantially Vietnamesezylin- derförmige stiffening structures 28, 30.
- the stiffening structures 28, 30 serve to adjust the rigidity and strength of the power transmission member 10 in different directions.
- the vibration damping device 16 is provided between the elastic bodies 12, 14, the vibration damping device 16 is provided.
- a free space FS is formed between the elastic bodies 12 and 14.
- the elastic bodies 12 and 14 are offset from one another in the X direction in order to be able to receive the vibration damping device 16 between them. Due to the free space FS, the at least one vibration damping device 16 does not affect the assembly of the power transmission component 10.
- the two elastic bodies 12 and 14 are compressed substantially in the Z direction in order to be able to install the power transmission component 10 under prestress in a rail vehicle wheel (not shown). Due to their absorber masses 32, 34, however, the vibration damping device 16 is only slightly compressible.
- the clearance FS thus provides the way that the elastic bodies 12 and 14 can be compressed during assembly without being affected by the vibration damping device 16, so that the power transmission member 10 are biased into the clearance between the wheel body and wheel tire of a rail vehicle wheel (not shown) can.
- the stiffening structures 28, 30 in particular increase the rigidity in the Y direction.
- the stiffness in the Z direction is over the elastic body 12 and 14 and the
- Stiffening structures 28 and 30 adjusted such that the power transmission member 10 in the Z direction can provide relatively large spring travel, ie the power transmission member is relatively soft in the Z direction. This will be the body sound entry via a rail vehicle wheel with the power transmission component 10 on the ground or the rails (not shown) reduced.
- FIG. 4 is a sectional view taken along section line IV-IV in FIG. Third
- the vibration damping device 16 with the upper absorber mass 32 and the lower absorber mass 34 can be seen.
- the upper absorber mass 32 is adapted to the contour of the inner peripheral surface of a wheel tire (not shown).
- the upper absorber mass 32 is formed with a cross-sectionally V-shaped recess 42.
- the recess 42 essentially corresponds to the bend 22 of the abutment surface 20 or of the abutment portion 18 (see FIG.
- the lower absorber mass 34 is connected to the upper absorber mass 32 via the spring element 36.
- the spring element 36 may be a rubber track or an elastomer track.
- the spring element 36 permits relative movements between the absorber masses 32 and 34.
- the absorber masses 32 and 34 can basically oscillate in the direction of all three spatial axes. In particular, however, the absorber masses 32 and 34 can oscillate in the Y direction.
- FIG. 5 is a sectional view taken along the line V-V in FIG. Third
- the stiffening structure 28 is added.
- the stiffening structure 28 is circular-cylindrical.
- the stiffening structure 28 has a circular thread insert 44. That is, the thread insert 44 is formed in cross section as a closed circle.
- the thread insert 44 receives an elastic body 46.
- the suture insert 44 makes contact between the stiffening structure 28 and the elastic body 14. Via the stiffening structure 28, the stiffness and strength of the power transmission member 10 can be adjusted.
- the stiffening structure 28 is used in particular for adjusting the rigidity in the Z direction (vertical direction) and in the Y direction.
- the thread insert 44 has a very high rigidity in the Y direction.
- the power transmission member 10 In the Y direction, the power transmission member 10 must be relatively stiff. Since the tracking of the wheel depends on the rigidity in the Y direction or in the direction of lateral force of the rail vehicle wheel. The stiffness of the power transmission member 10 in the Y direction has to be high in order to keep track of the combination of the wheel body, the power transmission member and the wheel tire.
- the rigidity of the power transmitting member 10 via the auctioning ⁇ Fung structure 28 and the material of the elastic body 12 is 14 ⁇ is relatively soft is so that the force transmission member 10 can provide relatively large spring travel in the Z direction.
- the cross-sectionally circular thread insert 44 can deform into an ellipse by deformation of the elastic body 46 accommodated in the thread insert 44.
- the elastic body 46 or the material selected for the elastic body 46 contributes to the adjustment of the rigidity of the power transmission member 10.
- the elastic body absorbs in particular pressure forces that occur during operation of the wheel.
- the elastic body 46 also serves as a return element for the thread insert 44, so that the thread insert ⁇ 44 can take their circular cross-section after the load again.
- the elastic body 14 and the auctioning ⁇ Fung structure 28th This allows us a compression of the rail vehicle wheel 10.
- FIG. 6 shows a perspective view of a power transmission component 110 according to a second embodiment of the invention.
- the power transmission member 110 includes an elastic body 112 and a vibration canceling device 116.
- the elastic body 112 comprises a contact portion 118 with a contact surface 120.
- the contact portion 118 is adapted to the profile of the inner peripheral surface of the wheel tire (not shown). Accordingly, the abutment surface 118 has a kink 122 which can receive a projection of a wheel tire (not shown).
- the kink 122 extends in the circumferential direction of the wheel tire, not shown, or a rail vehicle wheel (not shown).
- the elastic body 112 has a further contact surface 138 for engagement with a wheel disc (not shown).
- the vibration damping device 116 has an absorber mass 132 and a spring element 136.
- the spring element 136 extends between the contact surface 118 and the absorber mass 132.
- the absorber mass 134 is at least partially embedded in the material of the elastic body 112 or of the spring element 136.
- In the elastic body 112 are formed with recesses 124, 126, 148, 150 and 152. These recesses 124, 126, 148, 150, and 152 are particularly needed when press-fitting the power transmission components 110 between a wheel tire and a wheel disc (not shown) to allow compression of the power transmission member 110.
- the recesses 124, 126, 148, 150 and 152 are provided between the absorber mass 132 and a metal or sheet metal element 154.
- the element 154 has protrusions 156 and 158 projecting in the direction of the absorber mass 132.
- the absorber mass 132 has projecting portions 160 and 162 in the direction of the element 154.
- portions or webs 164 of the elastic material of the elastic body 112 are formed, which extend between the absorber mass 132 and the element 154.
- These material webs 164 serve to support the wheel tire and have a lower rigidity than the spring element 136 of the vibration damping device 116.
- the spring element 136 is stiffer than the material webs 164 due to its greater cross-sectional area and thickness.
- the material webs 164 cooperate with the protrusions 160, 162 on the absorber mass 132 and the protrusions 156 and 158 on the element 154 to form the Operation of a rail vehicle wheel loads occurring, in particular the wheel load and shear forces to be able to record.
- FIG. 7 shows a plan view of the power transmission component 110.
- FIG. 7 shows the contact surface 120 of the contact section 118 with its bend 122.
- FIG. 8 shows a sectional view along the section line VIII-VIII in FIG. 7.
- the spring element 136 extends between the contact surface 120 and the absorber mass 132. Via the thickness D in the Z direction or via the radial extent of the spring element 136 in the installed state, the vibration damping device 116 can be set to predetermined oscillation frequencies.
- the contact surface 120 facing surface 166 of the absorber mass 132 is spaced by the thickness D of the spring element 136 of the contact surface 120.
- Tilgermasse 132 extends substantially parallel to the contact surface 120 and accordingly also has a kink 168.
- the material webs 164 which extend between the absorber mass 132 and the element 154, and the projections 156, 158, 160, 162 serve to stiffen the power transmission component 110.
- the power transmission component 110 must, in particular Y direction can be relatively stiff, since the stiffness in the Y direction or in the lateral force direction of the power transmission member 110, the tracking of the wheel (not shown) depends.
- the material webs 164 which extend in particular obliquely between the projections 156 and 158 of the element 154 and the projections 160, 162 of the absorber mass, the power transmission member 110 receives in the Y direction substantially compressive loads.
- the material webs serve 164 for suspension of the tire in the Z direction.
- the vibration damping device 116 that is, the spring member 136 and the damper mass ⁇ 132 is functionally the wheel tire (not shown) is associated.
- the spring element 136 and the absorber mass 132 serve for bedding the wheel tire (not shown). By means of the spring element 136 and the absorber mass 132, the vibrations occurring on the wheel tire are thus to be redeemed.
- the area between the absorber mass 132 and the abutment surface 138, ie, the lower Z-direction izoflä ⁇ surface 138, is used for suspension of the railway vehicle wheel.
- FIG. 9 shows a side view of the power transmission component 110.
- FIG. Fig. 10 is a sectional view taken along the line X-X in Fig. 9;
- FIG. FIG. 10 shows the element 154, the recess 148, the absorber mass 132, the spring element 136 and the contact surface 120.
- FIG. 10 shows the curvature of the contact surface 120 and thus also of the spring element 136 which contact the
- Inner circumference radius of the tire (not shown) is adjusted.
- FIG. 11 is a perspective view of a power transmission member 210 according to a third embodiment.
- the vibration damping device 216 of the power transmission component 210 has, in addition to the absorber mass 232, a further absorber mass 234. Between the absorber mass 232 and the absorber mass 234, a spring element 270 is provided. The damper mass 232 cooperates with the spring element 236 for vibration damping. The absorber mass 234 cooperates with the spring element 270 for vibration damping. There are thus provided two Schwistsstilger, which are provided for the eradication of different vibrations. - -
- FIG. 12 shows a plan view of the power transmission member 210.
- the contact surface 220 of the force transmission member 210 has a bend 222 which extends in the X-direction and can menirri ⁇ together with a projection of a wheel tire.
- FIG. 13 is a sectional view taken along the section line ⁇ - ⁇ in FIG. 12.
- the vibration damping device 216 has an absorber mass 232 in the Z direction, which in the installed state corresponds to a radially outer absorber mass, and a Z absorber mass 234 in the Z direction, which in the installed state corresponds to a radially inner absorber mass. Between the absorber mass 232 and the absorber mass 234, the spring element 270 is provided, which cooperates with the absorber mass 234 for eradicating a predetermined oscillation frequency. The absorber mass 234 is arranged between the recesses 226 and 250. The upper damper mass 232 cooperates with the spring element 236, which extends between the contact surface 220 and the upper damper mass 232.
- the spring element 236 has a predetermined thickness Di in the Z direction, ie in the installed state in the radial direction.
- the spring element 270 has a predetermined thickness D 2 in the Z direction, ie in the installed state in the radial direction.
- the vibration damping device 216 can be adjusted to two different oscillation frequency ranges or to two different oscillation frequencies.
- the spring element 236 and the absorber mass 232 act as one
- Vibration damper and the spring element 270 and the absorber mass 234 as another vibration damper can be adjusted to different vibration frequencies or vibration frequency range.
- FIG. 14 shows a side view of the power transmission component 210.
- the spring element 236, the absorber mass 232, the spring element 270 and the absorber mass 234 can be seen, which adjoin one another in the Z direction.
- the absorber masses 232 and 234 are connected to the element 254 via the material webs 264.
- FIG. 15 shows a sectional view along the section line XV-XV in FIG. 14.
- the absorber masses 232 and 234 can be seen. Between the Tilgermas ⁇ sen 232 and 234, the spring element extending 270. In the Z-direction above the absorber mass 232, the spring element 236 is provided which extends between the Appendices ⁇ ge materials 220 and the surface 266 of the absorber mass 232nd
- the power transmission member according to the invention due to the vibration damping direction 16, 116, 216, effectively dampens vibrations generated in a rail vehicle wheel.
- the power transmission components 110 and 210 may be arranged together between a wheel tire and a wheel disc. This makes it possible that at least three oscillation frequencies or oscillation frequency ranges can be eradicated. In other words, a first number of the power transmission members 110 for canceling vibrations of one vibration frequency range and a second number of the power transmission members 210 for canceling vibrations may be arranged in two further vibration frequency ranges between the wheel tire and the wheel disc.
- FIG 16 shows another embodiment of the present invention.
- the thereby provided power transmission member 310 is formed considerably simplified compared to the power transmission components of the embodiments described above.
- the metal or sheet metal element 154, 254 has been omitted for saving space.
- the power transmission component 310 has an absorber mass 332 which is coupled to or embedded in the spring element 336. Below the absorber mass 332 extend from this in divergent manner two material webs 364i and 364 2 , which are relatively solid.
- the stiffness ratios in this embodiment remain similar to the above-described embodiments ⁇ .
- the elastomer composition is heavily sheared.
- the force transmitting member 410 shown therein is carried out in the same manner as said force transmitting member 310 according to figure 16. However, it is shown that the stiffness change in either the material webs 464i and 464 2 a stiffening element 480 in the form of an elongated Ver ⁇ steifungsbleches or a plastic body, or for "stiffening" one
- Recess 482 may be provided. It is understood that both material webs 464i and 464 2 can each be provided with a stiffening element 480 in the form of an elongated stiffening plate or a plastic body or with a recess 482. Depending on requirements, such a change in stiffness can be achieved.
- the invention described above can be implemented in particular by arranging a plurality of blocks in the form of individual power transmission components on a wheel.
- the power transmission component in a closed ring shape, either in the form of individual power transmission components, which can be assembled as individual ring segments to form a closed ring or as an integrally closed ring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112016000918.6T DE112016000918A5 (de) | 2015-06-02 | 2016-05-30 | Kraftübertragungsbauteil für ein Schienenfahrzeugrad |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015007139.4 | 2015-06-02 | ||
| DE102015007139.4A DE102015007139A1 (de) | 2015-06-02 | 2015-06-02 | Kraftübertragungsbauteil für ein Schienenfahrzeugrad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016193197A1 true WO2016193197A1 (de) | 2016-12-08 |
Family
ID=56087271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2016/062116 Ceased WO2016193197A1 (de) | 2015-06-02 | 2016-05-30 | Kraftübertragungsbauteil für ein schienenfahrzeugrad |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102015007139A1 (de) |
| WO (1) | WO2016193197A1 (de) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2324117A1 (de) | 1973-05-12 | 1974-11-21 | Krupp Ag Huettenwerke | Schienenrad in leichtbauweise |
| DE2720333A1 (de) * | 1977-05-06 | 1978-11-16 | Krupp Ag Huettenwerke | Schwingungsgedaempftes schienenrad |
| EP0020284A2 (de) * | 1979-06-02 | 1980-12-10 | Krupp Stahl Aktiengesellschaft | Schwingungsabsorber für Resonanzschwingungen rotierender Körper |
| EP0050567A1 (de) | 1980-10-17 | 1982-04-28 | Compagnie Francaise Des Aciers Speciaux | Vorrichtung für die Schwingungsdämpfung eines Schienenfahrzeugrades |
| DE3245775C1 (de) * | 1982-12-10 | 1984-04-19 | Krupp Stahl Ag, 4630 Bochum | Gummigefedertes Schienenrad |
| DE19501613A1 (de) | 1995-01-20 | 1996-07-25 | Vsg Verkehrstechnik Gmbh | Schwingungsgedämpftes Schienenrad |
| DE19610780A1 (de) | 1995-03-21 | 1996-09-26 | Gutehoffnungshuette Radsatz | Gummigefedertes Schienenrad |
| DE19617684A1 (de) | 1995-05-11 | 1996-12-12 | Gutehoffnungshuette Radsatz | Schallgedämpftes Schienenrad |
| EP0822102A2 (de) | 1996-07-30 | 1998-02-04 | Construcciones y Auxiliar de Ferrocarriles S.A. CAF. | Eisenbahnräder mit Schalldämpfungsvorrichtung |
| EP0872358A1 (de) | 1997-04-16 | 1998-10-21 | Alusuisse Technology & Management AG | Schienenfahrzeugrad |
| DE102007052316B3 (de) * | 2007-10-31 | 2009-01-29 | Carl Freudenberg Kg | Schwingungstilger zur Anordnung an einer Kardanwelle |
| DE102013010183A1 (de) * | 2013-06-17 | 2014-12-18 | Süddeutsche Gelenkscheibenfabrik Gesellschaft mit beschränkter Haftung & Co. KG | Bauteil für ein Schienenfahrzeugrad |
-
2015
- 2015-06-02 DE DE102015007139.4A patent/DE102015007139A1/de not_active Withdrawn
-
2016
- 2016-05-30 DE DE112016000918.6T patent/DE112016000918A5/de not_active Withdrawn
- 2016-05-30 WO PCT/EP2016/062116 patent/WO2016193197A1/de not_active Ceased
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2324117A1 (de) | 1973-05-12 | 1974-11-21 | Krupp Ag Huettenwerke | Schienenrad in leichtbauweise |
| DE2720333A1 (de) * | 1977-05-06 | 1978-11-16 | Krupp Ag Huettenwerke | Schwingungsgedaempftes schienenrad |
| EP0020284A2 (de) * | 1979-06-02 | 1980-12-10 | Krupp Stahl Aktiengesellschaft | Schwingungsabsorber für Resonanzschwingungen rotierender Körper |
| EP0050567A1 (de) | 1980-10-17 | 1982-04-28 | Compagnie Francaise Des Aciers Speciaux | Vorrichtung für die Schwingungsdämpfung eines Schienenfahrzeugrades |
| DE3245775C1 (de) * | 1982-12-10 | 1984-04-19 | Krupp Stahl Ag, 4630 Bochum | Gummigefedertes Schienenrad |
| DE19501613A1 (de) | 1995-01-20 | 1996-07-25 | Vsg Verkehrstechnik Gmbh | Schwingungsgedämpftes Schienenrad |
| DE19610780A1 (de) | 1995-03-21 | 1996-09-26 | Gutehoffnungshuette Radsatz | Gummigefedertes Schienenrad |
| DE19617684A1 (de) | 1995-05-11 | 1996-12-12 | Gutehoffnungshuette Radsatz | Schallgedämpftes Schienenrad |
| EP0822102A2 (de) | 1996-07-30 | 1998-02-04 | Construcciones y Auxiliar de Ferrocarriles S.A. CAF. | Eisenbahnräder mit Schalldämpfungsvorrichtung |
| EP0872358A1 (de) | 1997-04-16 | 1998-10-21 | Alusuisse Technology & Management AG | Schienenfahrzeugrad |
| DE102007052316B3 (de) * | 2007-10-31 | 2009-01-29 | Carl Freudenberg Kg | Schwingungstilger zur Anordnung an einer Kardanwelle |
| DE102013010183A1 (de) * | 2013-06-17 | 2014-12-18 | Süddeutsche Gelenkscheibenfabrik Gesellschaft mit beschränkter Haftung & Co. KG | Bauteil für ein Schienenfahrzeugrad |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015007139A1 (de) | 2016-12-08 |
| DE112016000918A5 (de) | 2017-11-23 |
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