CN116263192A - Torsional vibration damper - Google Patents

Torsional vibration damper Download PDF

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Publication number
CN116263192A
CN116263192A CN202211447611.1A CN202211447611A CN116263192A CN 116263192 A CN116263192 A CN 116263192A CN 202211447611 A CN202211447611 A CN 202211447611A CN 116263192 A CN116263192 A CN 116263192A
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CN
China
Prior art keywords
vibration damper
disk
output
output part
torsional vibration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211447611.1A
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Chinese (zh)
Inventor
罗曼·魏森博恩
托马斯·扬茨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Filing date
Publication date
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Publication of CN116263192A publication Critical patent/CN116263192A/en
Pending legal-status Critical Current

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    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/123—Wound springs
    • F16F15/12353—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/13128—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses the damping action being at least partially controlled by centrifugal masses
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/139—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by friction-damping means
    • F16F15/1392—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by friction-damping means characterised by arrangements for axially clamping or positioning or otherwise influencing the frictional plates
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/04—Friction
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/08—Inertia
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/30—Sealing arrangements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

The invention relates to a torsional vibration damper having an input part and an output part, and having a damping device, wherein the input part has a first disk element and a second disk element which are connected to one another in a sealed manner on the radially outer side and are arranged at a distance from one another on the radially inner side, wherein the damping device has an output element which is connected to the output part in a rotationally fixed manner or is formed by the output part, wherein the output element and the output part of the damping device are guided axially between the two disk elements toward the radially inner side, wherein a first seal is formed between the first disk element and the output element or the output part of the damping device by the arrangement of an axial ring, and a second seal is formed between the output element or the output part of the damping device and the second disk element by the arrangement of a friction ring, the two seals being arranged substantially at the same radial height and the friction ring of the second seal lying against the radially inner edge of the second disk element.

Description

Torsional vibration damper
Technical Field
The invention relates to a torsional vibration damper, in particular for a motor vehicle or for a drive train of a motor vehicle.
Background
The motor vehicle has a drive train in which torque fluctuations can occur. Such torque fluctuations occur in particular in internal combustion engines or hybrid engines having internal combustion engines, since they produce periodic torque fluctuations. This can, for example, cause tooth rattle, which is perceived by the vehicle occupants and should therefore be avoided. In motor vehicles with hybrid engines, however, driving states which are not present with motor vehicles with pure internal combustion engines are also added in relation to motor vehicles with pure internal combustion engines. For example, when the internal combustion engine is stopped, and thus also when the flywheel is stopped or when the torsional damper is stopped, a wading of the motor vehicle can be performed, wherein no centrifugal force effect occurs when the flywheel or torsional damper rotates, so that the entry of water into the flywheel or torsional damper is suppressed. Correspondingly, torsional vibration dampers are more sensitive to the entering water, since in certain operating situations, the centrifugal forces which occur are absent in spite of the motor vehicle driving. In addition, the design of the torsional vibration damper and its arrangement are also decisive for the wading depth of the motor vehicle.
Disclosure of Invention
The object of the present invention is to create a torsional vibration damper which achieves good noise isolation and good sealing and nevertheless allows good wading depths when used in motor vehicles.
The object is achieved by means of a torsional vibration damper according to the invention.
One embodiment of the invention relates to a torsional vibration damper, in particular in a drive train of a motor vehicle, having an input part and an output part, and having a damping device, wherein the input part is rotatable relative to the output part under the influence of a force of the damping device, wherein the input part has at least one first disk element and a second disk element which are connected to one another in a radially outer manner and which are arranged at a distance from one another in a radially inner manner, wherein the damping device has an output element which is connected to the output part in a rotationally fixed manner or is formed by the output part, wherein the first disk element is guided radially inwards and has a screw bore in a radially inner portion for threading a screw for tightening the torsional vibration damper, and wherein the second disk element is guided radially inwards, wherein the output element and the output part of the damping device are guided axially between the two disk elements in a radially inner direction, wherein a first seal is formed by arranging an axial ring between the output element of the first disk element and the damping device or the output part of the damping device, and wherein a friction seal is formed by arranging a second ring between the output element of the damping device and the second disk element against the first seal, wherein the friction ring is arranged against the second ring. As a result, good noise isolation and good sealing are achieved, wherein the sealing is arranged as far as possible radially inward, so that a good wading depth can be achieved in the case of use in a motor vehicle. Alternatively, both seals can be arranged substantially at the same radial level. However, the two seals can also be arranged at different radial heights.
In one embodiment, it is also suitable if a cover plate is provided, which rests against the axial side of the first plate element, wherein the cover plate has a through-hole for the through-screw, which is aligned with the screw hole of the first plate element, wherein an axial ring is arranged axially on the radially outer side of the cover plate between the first plate element and the output element or output part of the damping device, or an axial ring is arranged axially between the cover plate and the output element or output part of the damping device. In this way, on the one hand, the abutment of the screw is improved by the cover disk and, on the other hand, the position of the axial ring or the position of the axial ring is delimited toward the radially inner side by the cover disk, whereby a further arrangement of the axial ring and thus of the seal toward the radially inner side is possible.
It is also particularly advantageous if the cover disk has an axially extending first annular region which is spanned radially by the axial ring. Hereby is achieved that the first annular region can be used to define the position of the axial ring.
It is also advantageous if the cover disk has a radially extending upstanding second annular region, at which the axial ring is supported axially. Hereby it is achieved that the cover disc is constructed as an abutment element suitable for the axial ring.
It is also suitable for the friction ring to have a first annular region which extends axially in cross section and which bears radially inwardly against the second disk element, in particular against the radially inner end face of the second disk element.
It is also suitable for the friction ring to have an axial end face which axially abuts axially at the output element or output part of the damping device. In this way, a good force transmission is achieved with a small installation space.
It is also suitable for the friction ring to have a second annular region which extends radially in cross section and forms an axial end face. The end face can thereby be increased, which improves friction.
It is also suitable to provide a spring element, in particular a disk spring, which is arranged in tension between the second disk element and the friction ring and which acts on the axial end of the friction ring facing the output element or output part of the damping device. Thereby, a compression is defined, which defines friction. Therefore, friction can be set in a desired area.
It is also suitable for the spring element to be arranged in tension axially between the second disk element and the second annular region of the friction ring. Preferably, the friction ring and/or the spring element are held in a rotationally fixed manner, which promotes the uniformity of the friction during the service life.
It is also suitable for the friction ring to have at least one projection at the first annular region, which projects radially outwards and serves as a retaining means. The projection can also serve for torsion resistance at the second disk element.
Drawings
The invention is described in detail below with reference to the attached drawings according to a preferred embodiment.
Here, it is shown that:
figure 1 shows a schematic partial cross-section of a first embodiment of a torsional vibration damper according to the invention,
figure 2 shows a schematic partial cross-section of a second embodiment of a torsional vibration damper according to the invention,
fig. 3 shows a schematic partial cross-section of a third embodiment of a torsional vibration damper according to the invention.
Detailed Description
Fig. 1 shows a first embodiment of a torsional vibration damper 1 according to the invention, which can be rotatably arranged about an axis of rotation x-x.
The torsional vibration damper 1 is thus arranged fixedly, for example by means of screws 2, on driven components, for example crankshafts, transmission shafts, etc., for example in the drive train of a motor vehicle.
The torsional vibration damper 1 has an input portion 3 and an output portion 4. A damping device 5 is provided in the torque flow between the input part 3 and the output part 4. The damping device 5 comprises, for example, a spring damper device 6, a centrifugal pendulum device 7, a friction device 8, a slip clutch and/or other devices in order to dampen the torque that can be transmitted from the input part 3 to the output part 4 and/or from the output part 4 to the input part 3. In the embodiment of fig. 1, without limiting the invention, a spring damper device 6, a centrifugal pendulum device 7 and a friction device 8 are shown.
The input part 3 is rotatable relative to the output part 4 under the force of the damping device 5, in particular under the force of a restoring force.
The input part 3 has at least a first disk element 9 and a second disk element 10, which are sealingly connected to each other at the radially outer part. For this purpose, the two disk elements 9, 10 are welded, for example, circumferentially, see circumferential weld seam 11.
Radially inward, the two disk elements 9, 10 are arranged, for example, essentially radially oriented and spaced apart from one another, respectively, such that a spatial region 12 is defined between the two disk elements 9, 10, in which the vibration damping device 5 is arranged.
The damping device 5 has an input element 13, which in the exemplary embodiment shown in fig. 1 is formed by the input section 3. The damping device 5 also has an output element 14 which serves as a flange for the spring damper device 6 and for the centrifugal pendulum device 7.
The output element 14 is connected in a rotationally fixed manner to the output part 3. For this purpose, the output element 14 is riveted to the output part 4 by means of a riveting element 15. Alternatively, the output element 14 may also be formed in one piece with the output part 4, so that it is formed by the output part 4 itself.
It can also be seen from fig. 1 that not only the output element 14, but also the output part 4 is arranged axially between the two disk elements 9, 10.
Furthermore, it can also be seen from fig. 1 that the first disk element 9 is guided radially inwards and has a screw hole 16 in the radial inwards for threading the screw 2 for tightening the torsional vibration damper 1.
The second disk element 10 is also guided radially inwards, wherein the output element 14 and the output part 4 of the damping device 5 are guided axially between the two disk elements 9, 10 radially inwards.
In order to seal the space region 12 from the outer space 17, a first seal 18 is formed between the first disk element 9 and the output element 14 or the output part 4 of the damping device 5 by the provision of an axial ring 19.
Furthermore, a second seal 20 is formed between the output element 14 or the output part 4 of the vibration damping device 5 and the second disk element 10 by the provision of a friction ring 21.
The two seals 18, 20 are arranged substantially at the same radial level. The arrangement of the two seals 18, 20 takes place in particular at the level of the radially inner edge 22 of the second disk element 10, which is arranged essentially at the level of the screw hole 16 in the first disk element 9 or slightly radially outside thereof.
Preferably, the friction ring 21 of the second seal 20 is arranged such that it rests against the radially inner edge 22 of the second disk element 10. Thereby, the friction ring 21 is radially centered by the second disk element 10.
As is also shown in fig. 1, a cover disk 23 is provided in particular on the side facing away from the screw-on side, said cover disk being located against the axial side of the first disk element 9. The cover plate 23 has a through-hole 24 for the through-screw 2, wherein the through-hole 24 is aligned with the screw hole 16 of the first plate element 9.
The axial ring 9 is arranged axially between the first disk element 9 and the output element 14 of the vibration damping device 5 or alternatively between the first disk element 9 and the output part 4 radially outside the cover disk 23, so that the axial ring 19 is abutted on both sides, as is also shown in fig. 1.
Alternatively, the axial ring 19 is also arranged axially against the cover disk 23 and the output element 14 or the output part 4 of the vibration damping device 5, as can be seen in fig. 3.
According to fig. 1 or 2, the cover disk 23 has an axially extending first annular region 25 which is spanned radially by the axial ring 19.
For this purpose, the cover disk 23 can have a radially extending upstanding second annular region 26, on which the axial ring 19 can be supported axially, as can be seen in fig. 3. In this case, the first annular region 25 is not spanned by the axial ring 19.
The friction ring 21 also has a first annular region 27 which extends axially in cross section and which bears radially inwardly against the second disk element 10, in particular at the radially inner end face 22 of the second disk element 10. The friction ring 21 also has an axial end face 28 which axially abuts on the output element 14 or the output part 4 of the vibration damping device 5, as is also shown in fig. 1.
The friction ring 21 also has a second annular region 29 which extends radially in cross section and forms an axial end face 28. Thereby, the area of the axial end face 28 increases, which is advantageous for limiting friction.
Furthermore, a spring element 30, such as, in particular, a disk spring, is provided, which is arranged axially in tension between the second disk element 10 and the friction ring 21 and axially acts on the axial end face 28 of the friction ring 21 toward the output element 14 or the output part 4 of the damping device 5.
The spring element 30 is correspondingly arranged in tension axially between the second disk element 10 and the second annular region 29 of the friction ring 21.
Alternatively, the friction ring 21 may have at least one radially outwardly projecting projection 31 at the first annular region 27, which projection serves as a retaining and fixing means.
Fig. 2 shows a second embodiment of a torsional vibration damper 1 according to the invention, which can be rotatably arranged about an axis of rotation x-x. The torsional vibration damper 1 according to fig. 2 is designed in principle similar to the torsional vibration damper 1 of fig. 1, so that reference is made to the description here.
The damper device 5 is configured with a spring damper device 6 and an internal damper 32 as a second spring damper device 33. The output element 14 of the damping device 5 is designed such that it is formed by a second side disk 34, which accommodates a flange 35 of the first spring damper device 6 between them.
Fig. 3 shows a third embodiment of a torsional vibration damper 1 according to the invention, which can be rotatably arranged about an axis of rotation x-x. The torsional vibration damper 1 according to fig. 3 is designed in principle similar to the torsional vibration damper 1 of fig. 1 or 2, so that reference is made to the description here.
The damper device 5 is configured with a spring damper device 6 and a light damper 36 as a second spring damper device 33. The output element 14 of the damper device 5 is designed such that it is formed by the output part 4 and is surrounded by two side disks 37, which form the flange 35 of the first spring damper device 6. A spring element 38 is arranged between the flange 35 and the side disk 37.
The axial ring 19 is arranged axially between the cover disk 23 and the output element 14 and the output part 4 of the vibration damping device 5, since the output part 4 also forms the output element 14.
List of reference numerals:
1. torsional vibration damper
2. Screw
3. Input part
4. Output part
5. Vibration damper
6. Spring damper device
7. Centrifugal pendulum device
8. Friction device
9. First disk element
10 second disc element
11 weld joint
12 spatial region
13 input element
14 output element
15 riveting element
16 screw holes
17 outside space
18 first seal
19 axial ring
20 second seal
21 friction ring
22 inner edge/end side
23 cover plate
24 through hole
25 first annular region
26 second annular region
27 first annular region
28 end face
29 second annular region
30 spring element
31 protruding part
32 internal shock absorber
33 second spring damper device
34 side plate
35 flange
36 light shock absorber
37 side plate
38 spring elements.

Claims (10)

1. A torsional vibration damper (1), in particular in a drive train of a motor vehicle, having an input part (3) and an output part (4) and having a damping device (5), wherein the input part (3) can be rotated relative to the output part (4) under the force of the damping device (5), wherein the input part (3) has at least one first disk element (9) and a second disk element (10) which are connected to one another in a sealed manner on the radially outer side and which are arranged at a distance from one another on the radially inner side, wherein the damping device (5) has an output element (14) which is connected to the output part (4) in a rotationally fixed manner or is formed by the output part (4), wherein the first disk element (9) is guided radially inwards and has a screw hole (16) on the radially inner side for threading a screw (2) for tightening the torsional vibration damper (1), and wherein the second disk element (10) is guided radially inwards of the first disk element and the second disk element (10) is guided radially inwards of the damping device (4) towards the output part (4) and the output element (14) is guided radially inwards of the damping device (4), wherein a first seal (18) is formed between the first disk element (9) and the output element (14) or the output part (4) of the vibration damper (5) by providing an axial ring (19), and wherein a second seal (20) is formed between the output element (14) or the output part (4) of the vibration damper (5) and the second disk element (10) by providing a friction ring (21), wherein the friction ring (21) of the second seal (20) is in contact with a radially inner edge (22) of the second disk element (10).
2. Torsional vibration damper (1) according to claim 1,
it is characterized in that the method comprises the steps of,
a cover disc (23) is provided, which rests against an axial side at the first disc element (9), wherein the cover disc (23) has a threading hole (24) for threading the screw (2), which is aligned with the screw hole (16) of the first disc element (9), wherein the axial ring (19) is arranged axially between the first disc element (9) and the output element (14) or the output part (4) of the vibration damper (5) radially outside the cover disc (23), or the axial ring (19) is arranged axially between the cover disc (23) and the output element (14) or the output part (4) of the vibration damper (5).
3. Torsional vibration damper (1) according to claim 2,
it is characterized in that the method comprises the steps of,
the cover disk (23) has an axially extending first annular region (25) which is radially spanned by the axial ring (19).
4. A torsional vibration damper (1) according to claim 2 or 3,
it is characterized in that the method comprises the steps of,
the cover disk (23) has a radially extending upstanding second annular region (26), on which the axial ring (19) is axially supported.
5. Torsional vibration damper (1) according to one of the preceding claims,
it is characterized in that the method comprises the steps of,
the friction ring (21) has a first annular region (27) which extends axially in cross section and which bears radially inwardly against the second disk element (10), in particular against a radially inner end face (22) of the second disk element (10).
6. Torsional vibration damper (1) according to one of the preceding claims,
it is characterized in that the method comprises the steps of,
the friction ring (21) has an axial end face (28) which axially abuts on the output element (14) or the output part (4) of the vibration damper (5).
7. Torsional vibration damper (1) according to claim 6,
it is characterized in that the method comprises the steps of,
the friction ring (21) has a second annular region (29) which extends radially in cross section and forms the axial end face (28).
8. Torsional vibration damper (1) according to one of the preceding claims,
it is characterized in that the method comprises the steps of,
a spring element (30), such as in particular a disk spring, is provided, which is arranged in tension between the second disk element (10) and the friction ring (21) and acts on the axial end face (28) of the friction ring (21) towards the output element (14) or the output part (4) of the damping device (5).
9. Torsional vibration damper (1) according to claim 8,
it is characterized in that the method comprises the steps of,
the spring element (30) is arranged axially in tension between the second disk element (10) and the second annular region (29) of the friction ring (21).
10. Torsional vibration damper (1) according to claim 1, 2, 3, 4 or 5,
it is characterized in that the method comprises the steps of,
the friction ring (21) has at least one radially outwardly projecting projection (31) at the first annular region (27), which projection serves as a retaining means.
CN202211447611.1A 2021-12-15 2022-11-18 Torsional vibration damper Pending CN116263192A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021133167.6A DE102021133167A1 (en) 2021-12-15 2021-12-15 torsional vibration damper
DE102021133167.6 2021-12-15

Publications (1)

Publication Number Publication Date
CN116263192A true CN116263192A (en) 2023-06-16

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