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
  • 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
  • F16F15/1204—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 with a kinematic mechanism or gear system
• • 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
• • 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
  • F16F2230/00—Purpose; Design features
  • F16F2230/0052—Physically guiding or influencing
  • F16F2230/0064—Physically guiding or influencing using a cam
• • 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
  • F16F2232/00—Nature of movement
  • F16F2232/02—Rotary

Definitions

• the present invention relates to a torsional vibration damper, in particular for a clutch disc within a drive train of a motor vehicle, a corresponding clutch disc and a clutch, in particular for the drive train of a motor vehicle.
• Torsional vibration dampers are known in automotive engineering, for example from DE 10 2015 211 899 A1, in which an input part and a limited input part rotatable output part, which are coupled by intermediate elements and spring means, which are arranged so that the spring devices not in Circumferential direction are arranged.
• the intermediate elements are arranged centrally in the axial direction.
• the input part must be connected to a friction ring.
• the formation of this connection is complicated and restricts the space available for the training and the movement of the intermediate elements limited, so that limits are given in terms of the possible capacity of the torsional vibration damper.
• the permanent functioning of the torsional vibration damper depends, in particular, on the precision of the position of the intermediate elements.
• the symmetry or uniformity of the roller conveyors in the axial direction are critical, so that, for example, even the indispensable effects of the manufacturing method lead to problems in the operation of the torsional vibration damper and in terms of durability.
• the intermediate elements are produced by means of a stamping method, the punch entry and outset already lead to a contact surface which is nonuniform in the axial direction for the rolling bodies. This can adversely affect the movement of the individual components, since during operation the components (input part, output part, intermediate element) can be displaced laterally.
• the torsional vibration damper according to the invention in particular for a clutch disc within a drive train of a motor vehicle, having an input part arranged about a rotation axis and an output part rotatable relative to the input part about the rotation axis against the action of a spring device, with at least two between the input part and the Starting element arranged torque-transmitting intermediate elements, which are arranged by means of Kurvenge- drives in a relative rotation of the input part and output part forcibly displacing radially and between the at least two insects- elements the spring means is arranged, is characterized in that each intermediate element is made in two parts.
• the spring device has at least one spring as an energy store, preferably two springs which are connected to the two intermediate elements.
• the torsional vibration damper may be formed, for example, as a split flywheel having a primary flywheel mass and a secondary flywheel mass having spring means therebetween, torsional vibration damper disposed in a clutch disk between a brake shoe and a hub, a lockup damper in a torque converter, or the like.
• the proposed torsional vibration damper includes a spring device for damping torsional or torsional vibrations, which is arranged outside the torque path between the input part and the output part. Flier notebook can the spring device largely independent of that on the torsional vibration damper to be adapted transmitting moment and adapted to their actual task of vibration isolation.
• a two-part construction of the intermediate element is understood to mean that it is made up of two element parts, which are formed one behind the other, in particular in the axial direction (in the direction of the axis of rotation). Preference is given to a design of two symmetrical element parts.
• a two-part symmetrical design of each intermediate element it is possible to form the support in the roller conveyors in the intermediate element independently of the manufacturing process of the intermediate elements a more uniform bearing surface for the rolling elements.
• a multi-part construction of the intermediate elements allow a high flexibility in the construction of the torsional vibration damper, which leads to greater possibilities in the design of the damper and its characteristics.
• each intermediate element is formed from two element parts which are spaced apart from one another in the direction of the axis of rotation.
• the torsional vibration damper By a spaced configuration of the element parts, a basically very flexible construction of the torsional vibration damper can be made possible, in which a further component, for example the input or output part, is received between the element parts in the axial direction of the axis of rotation.
• a further component for example the input or output part
• the two element parts are formed symmetrically to an axis which is perpendicular to the axis of rotation.
• the input part is received between the element parts.
• the input part is formed from at least two input sub-elements.
• a friction element or a connecting element can be formed into a friction element between the input partial elements and all three components can be connected together, for example by riveting. This enables a simple and cost-effective connection of the friction element and thus the clutch disc ,
• each intermediate element is received between two parts of the starting part.
• each intermediate element is formed from two element parts which are formed symmetrically between two parts of the output part.
• a clutch disc is proposed for a clutch, in particular in the drive train of a motor vehicle, which comprises a torsional vibration damper as described here, as well as a clutch which comprises a corresponding clutch disc. Furthermore, a motor vehicle is proposed with such a coupling in an advantageous manner. The details and advantages disclosed for the torsional vibration damper can be applied and applied to the clutch disc, the clutch and the motor vehicle, and vice versa.
• Fig. 1 and 2 a known as known torsional vibration damper
• FIG. 2 shows a section of the torsional vibration damper assumed to be known in section
• FIG. 3 shows a section of an example of a torsional vibration damper in the neutral, undeflected state
• FIG. 6 shows a section of an example of a torsional vibration damper in the deflected state
• FIGS. 7 and 8 show two views of the torsional vibration damper in the undeflected state
• Fig. 9 u. 10 two views of the torsional vibration damper in the deflected state
• Fig. 11 an example of a clutch disc
• Fig. 12 very schematically a coupling.
• torsional vibration damper 1 comprises an input part 2, intermediate elements 3, cam gear 4,
• the input part 2 of the torsional vibration damper 1 of Fig. 1 in the preferred two with respect to the axis of rotation d of a shaft 17th Ramps 11, which are opposite to each other, respectively have ramps 11 such as curved paths of the ramp devices 6.
• two opposing intermediate elements 3, each with two ramps 12 complementary to the input part 2, such as curved paths of the ramp devices 6 and the rolling bodies 13 complete the cam gear 4 between the input part 2 and intermediate elements 3.
• the intermediate elements 3 each have, radially inward, a further ramp 14, which are in operative connection with ramps 15 arranged in the output part 10.
• the intermediate elements 3 are likewise guided via rolling elements 16 rolling freely between the correspondingly designed ramps 14, 15, so that their movement again results in a parallel deflection the energy storage 9 means.
• the ramps 14 of the intermediate elements 3 and the ramps 15 of the output part 10 together with the associated rolling elements 16 form the cam mechanism 5.
• the total torsion angle between the input part 2 and the output part 10 results from the sum of the angles of rotation which occur in the respective cam gear 4, 5 at a specific deflection of the energy accumulators 9 ,
• the torque on the input part 2 for the rotational movement is supported on the output part 10 as a pure torsion moment.
• the unit consisting of intermediate elements 3 and energy storage 9 is not under external moment effect, but defines the height of the force from the parallel deflection of the energy storage 9, the amount of transmitted torque.
• the ramps 11, 12, 14, 15 of the cam gears 4, 5 of the torsional vibration damper 1 are designed, for example, linearly to control the movements when rotated in the direction indicated and the ability to moment in contact via the rolling bodies 13, 16 in the latter To convey direction, to indicate direction.
• the shape of the ramps 11, 12, 14, 15 is a free form as a result of the desired translations for the torsional characteristic while satisfying the rolling conditions for the rolling bodies 13, 16.
• FIG. 3 shows a section of an example of a torsion vibration damper 1 which is not deflected and has an input part 1 which can move in the circumferential direction 18, an intermediate element 3 which is connected via a spring device 8 to another intermediate element 3 (not shown) , By means of the energy accumulators 9 (spring elements) of the spring device 8, the movement of the intermediate element 3 in the direction of movement 19 is predetermined. Furthermore, an output part 10 is formed which is connected to a shaft (not shown) having the rotation axis d.
• the torsional vibration damper 1 has rolling elements 13, which are guided by ramps 11 of the input part 2 and ramps 12 of the intermediate element 3, as discussed above. Furthermore, a rolling body 17 is formed, which is guided by ramps 14 of the intermediate element 3 and ramps 15 of the output part 10 as discussed above. 4 and 5 show sections of two possible examples of torsional vibration dampers 1 in section, in which the intermediate element 3 is formed in two parts from two element parts 20. These element parts 20 are constructed symmetrically and are spaced apart from one another in the direction of the axis of rotation d, so that the input part 2 can be picked up between the element parts 20.
• the input part 2 of two input sub-elements 21 is constructed, which are non-positively connected via rivets 22 and positively.
• the rivets 22 are preferably countersunk and conical in order to allow a connection of the input part elements 21 which do not construct any further Restrictions caused because the rivet 2 is flush with the respective axial outer side of the input sub-elements 21.
• the term friction member 23 is here also an element to understand, which serves as a carrier, for example, for a friction ring.
• the friction element 23 is part of a corresponding friction clutch (not shown here).
• Fig. 5 shows an example in which the input part 2 is integrally formed.
• the friction element 23 is secured by corresponding rivets 22 on an axial surface of the input part 2.
• FIG. 2 is compared with FIGS. 4 and 5, it can be seen that, in the embodiment according to FIGS. 5 and 6, the bearing surface for the rolling elements 13, 17 in the intermediate element 3 or the element parts 20 is symmetrical and planar, while in the embodiment of FIG. 2, the influence of, for example, the unevenness of the support surface caused by punching entry and exit is significantly greater.
• a more uniform movement of the rolling bodies 13, 16 in the respective ramp tracks 11, 12, 14, 15 can be achieved, in which a lateral movement of the components 2, 3, 10 can be reduced.
• FIG. 6 shows an example of a torsional vibration damper 1, which is deflected in comparison to FIG. 3, analogous to FIG. 3.
• Fig. 7 and 8 shows parts of a torsional vibration damper 1 in the undeflected state, Fig. 9 and 10 in the deflected state.
• FIGS. 7 to 10 show that a simple connection of the friction element 23 to the input part 2, without thereby restricting the shape and the range of movement of the intermediate elements 3.
• the intermediate elements 3 or the element parts 20 can utilize the maximum installation space and, in particular, the maximum possible radius in the clutch disk, so that the size of the spring devices 8 and in particular the energy store (springs)
• the energy storage 9 can provide a large spring energy available.
• FIG. 11 shows a clutch disk 24 with torsional vibration damper 1, as described in particular in connection with FIG. 4. Reference is made to the above statements and referenced.
• the friction element 23 is connected to the input part elements 21 with rivets 22.
• the friction element 23 has friction surfaces 25, which are releasably connectable via a frictional engagement with corresponding, not shown, friction partners, so as to be able to represent a clutch.
• a hub flange 26 is shown, which is connectable via an intermediate toothing 27 with a hub, not shown, which in turn is connectable to a shaft, such as a transmission input shaft.
• FIG. 12 very schematically shows a coupling 28 with a clutch disk 24.
• the clutch 28 can be arranged, in particular, in the drive train of a motor vehicle.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=66175110

Family Applications (1)

Country Status (7)

Families Citing this family (21)

Family Cites Families (17)

• 2018
  • 2018-04-10 DE DE102018108441.2A patent/DE102018108441A1/de not_active Withdrawn
• 2019
  • 2019-03-29 WO PCT/DE2019/100296 patent/WO2019196984A1/de unknown
  • 2019-03-29 EP EP19717422.0A patent/EP3775611A1/de not_active Withdrawn
  • 2019-03-29 CN CN201980024195.4A patent/CN111989507B/zh active Active
  • 2019-03-29 US US17/044,848 patent/US12000453B2/en active Active
  • 2019-03-29 KR KR1020207028414A patent/KR20200140269A/ko not_active Application Discontinuation
  • 2019-03-29 JP JP2020553511A patent/JP7114730B2/ja active Active
  • 2019-03-29 DE DE112019001882.5T patent/DE112019001882A5/de active Pending

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