CN115370710A - Centrifugal pendulum device and torque transmission device - Google Patents
Centrifugal pendulum device and torque transmission device Download PDFInfo
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- CN115370710A CN115370710A CN202210507878.9A CN202210507878A CN115370710A CN 115370710 A CN115370710 A CN 115370710A CN 202210507878 A CN202210507878 A CN 202210507878A CN 115370710 A CN115370710 A CN 115370710A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims description 13
- 239000005060 rubber Substances 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 description 19
- 238000005096 rolling process Methods 0.000 description 16
- 230000033001 locomotion Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 3
- 210000003734 kidney Anatomy 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
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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
- F16F15/14—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
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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
- F16F15/14—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
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention relates to a centrifugal pendulum device (100) for a torque transmission device, the centrifugal pendulum device (100) comprising: a pendulum mass carrier (102) rotatable about an axis of rotation; at least one pendulum mass (104) which is arranged on the pendulum mass carrier (102) so as to be movable along the pendulum rail between two end positions; and a pendulum stop device (106) which acts between the pendulum mass carrier (102) and the at least one pendulum mass (104), wherein the pendulum stop device (106) has at least one stop element (108), wherein the at least one stop element (108) has at least one recess (120), and to a torque transmission device for a drive train of a motor vehicle, which has such a centrifugal pendulum device (100).
Description
Technical Field
The invention relates to a centrifugal force pendulum device for a torque transmission device, comprising a pendulum mass carrier that can be rotated about a rotational axis, at least one pendulum mass that is arranged on the pendulum mass carrier so as to be displaceable along a pendulum rail between two end positions, and a pendulum stop that acts between the pendulum mass carrier and the at least one pendulum mass. The invention further relates to a torque transmission device for a drive train of a motor vehicle.
Background
DE 10 2016 125 A1 discloses a centrifugal force pendulum device, in particular for a torque transmission device, having a rotational axis, a pendulum mass carrier that can be rotated about the rotational axis, at least one pendulum mass that is arranged on the pendulum mass carrier so as to be displaceable along a pendulum rail between two end positions and an inner edge, wherein the centrifugal force pendulum device has at least one end position element that has at least one contact portion and at least one stop portion.
Centrifugal pendulums are subject to large excitations in certain states, such as, for example, at start/stop, which cause the pendulum mass to deflect completely and limit its pendulum movement by means of an end stop or a vibration angle cut-off. The stop can cause disturbing noise as a function of the energy input. Further, noise may occur when the pendulum assembly falls downward due to gravity due to a lack of centrifugal force, for example, when the engine is stopped.
Disclosure of Invention
The invention is based on the object of structurally and/or functionally improving the centrifugal pendulum device mentioned at the outset. The invention is based on the object, inter alia, of structurally and/or functionally improving the torque transmission device mentioned at the outset.
This object is achieved by means of a centrifugal pendulum device according to the invention. The object is also achieved by means of a torque transmission device according to the invention. Advantageous embodiments and/or improvements are described herein.
Centrifugal pendulum devices can be used to eliminate torsional vibrations. The centrifugal force pendulum device can be provided on the torque transmission device. The centrifugal force pendulum device can be arranged axially on the input side, axially on the output side or essentially within the torque transmission device. The centrifugal force pendulum device can be arranged substantially within the receiving space of the torque transmission device. The centrifugal pendulum device can be used in a crankshaft, a torsional vibration damper, a single mass flywheel, a dual mass flywheel, a clutch disk, a friction clutch device, a belt pulley decoupler, an automatic torque converter, a hydraulic torque converter, an auxiliary unit drive, an electric machine, in particular an electric machine of a hybrid drive assembly, and/or a drive assembly of a motor vehicle.
Unless otherwise stated or no further information is given from the context, the expressions "axial", "radial" and "circumferential" relate to the direction of extension of the rotational axis of the centrifugal force pendulum device. The "axial direction" then corresponds to the direction of extension of the rotational axis of the centrifugal force pendulum device. "radial" is then the direction of extension perpendicular to the axis of rotation of the centrifugal force pendulum device and the direction intersecting the axis of rotation of the centrifugal force pendulum device. "in the circumferential direction" then corresponds to the direction of a circular arc about the axis of rotation of the centrifugal force pendulum device.
The centrifugal force pendulum device can have a pendulum mass carrier that can be rotated about a rotational axis. The centrifugal force pendulum device can have at least one pendulum mass which is arranged on a pendulum mass carrier so as to be displaceable along the pendulum rail between two end positions.
The pendulum mass carrier may have an annular disc-like or flange-like shape. The pendulum mass carrier may be a flange or a flange component. The pendulum mass carrier can have a single pendulum mass carrier part. The pendulum mass carrier can be used to axially arrange the pendulum mass on both sides. The pendulum mass carrier can have a first pendulum mass carrier part in the form of a ring disk or flange and a second pendulum mass carrier part in the form of a ring disk or flange. The pendulum mass carrier parts can each have a connecting section and a receiving section. The connecting section may be arranged radially inside the receiving section. At the connecting section, the first pendulum mass carrier part and the second pendulum mass carrier part can be fixedly connected to each other, in particular riveted or screwed. The receiving sections of the first pendulum mass carrier part and of the second pendulum mass carrier part can be axially spaced apart from one another and bound a receiving space for at least one pendulum mass. The pendulum mass carrier may be used to accommodate a U-shaped pendulum. The pendulum mass carrier can have at least one rolling body recess for a rolling body. The at least one rolling body recess may be used to define a wobble track and/or may have a kidney shape. The at least one rolling body recess may form a runner guide. The pendulum mass carrier can have, for example, two rolling body pockets, in particular two rolling body pockets per pendulum mass. The pendulum mass carrier can be fixedly connected, in particular riveted or screwed, to the torque transmission device.
At least one pendulum mass can be arranged eccentrically with respect to the axis of rotation. At least one pendulum mass may have an arc shape. At least one of the pendulum masses can be designed as a wobble plate. At least one pendulum mass can have a single pendulum mass part. At least one of the pendulum masses may be a one-piece pendulum mass. At least one pendulum mass and/or pendulum plate can be used as the primary mass. At least one of the pendulum masses may be a thin plate, for example having a thickness of about 3 mm. At least one pendulum mass can be formed in one piece. At least one pendulum mass can be formed in multiple parts. For example, the wobble block may have a plurality of, e.g., two or three wobble block disks or wobble block plates. At least one pendulum mass may be arranged axially between the first pendulum mass carrier part and the second pendulum mass carrier part. At least one pendulum mass can be arranged in the receiving space of the pendulum mass carrier. The first and second pendulum mass carrier parts may bound the accommodation space. At least one of the pendulum masses may have a first pendulum mass part and a second pendulum mass part. The first and second pendulum mass parts may be arranged on both sides on the pendulum mass carrier. The first pendulum mass part and the second pendulum mass part can be fixedly connected to one another, in particular riveted or screwed. The first and second pendulum mass parts may be arranged axially opposite and/or adjacent to each other. The pendulum mass carrier may be disposed between the first and second pendulum mass components. The first and second pendulum mass parts may be rigidly connected to each other in pairs. The first and second pendulum mass parts can be substantially identically constructed. At least one pendulum mass may have an intermediate piece. The intermediate member may be axially disposed between the first and second pendulum mass members. The first and second pendulum mass parts may each have two ends oriented in the circumferential direction. The first and second pendulum mass parts may each have the same profile. The first and second pendulum mass parts may each be larger than the intermediate part. The first and second pendulum mass parts and the intermediate part can be fixedly connected to one another, for example riveted or screwed.
The centrifugal force pendulum device can have a plurality of pendulum masses, for example two, three or four pendulum masses. At least one pendulum mass can have at least one rolling body recess for a rolling body. At least one pendulum mass can have, for example, two or four rolling body pockets. Each pendulum mass part may have at least one rolling body recess for a rolling body. Each pendulum mass part can have, for example, two rolling body pockets. The at least one rolling body recess may be used to define a wobble track and/or may have a kidney shape. The at least one rolling body recess may form a runner guide.
At least one pendulum mass can be arranged on the pendulum mass carrier by means of at least one rolling body. For example, at least one pendulum mass can be arranged on the pendulum mass carrier by means of two rolling bodies. At least one pivoting motion can be operatively arranged between the pendulum mass carrier and the at least one pendulum mass. At least one pendulum mass can be connected to the pendulum mass carrier in a multi-wire, twin-wire or single-wire manner. At least one pendulum mass can be moved into an operating position under the effect of centrifugal force. At least one pendulum mass can be moved into the operating position by centrifugal force radially outward. In the operating position, at least one pendulum mass can be displaced under the effect of torsional vibration. In the operating position, at least one pendulum mass can be moved in order to eliminate torsional vibrations. In the operating position, at least one pendulum mass can be moved from the intermediate position between the end positions in an oscillating manner, in particular in the circumferential direction. In this case, the oscillation angle of at least one pendulum mass is determined with respect to the axis of rotation. Between the intermediate position and the final position, a maximum oscillation angle of the at least one pendulum mass can be determined.
The centrifugal pendulum device may have a pendulum stop. The pendulum stop means may be a pendulum friction means and/or a pendulum stop damping means. The pendulum stop means may be associated with the pendulum mass. In the case of a plurality of pendulum masses, each pendulum mass can be associated with a pendulum stop. The pendulum stop device can be operatively arranged between the pendulum mass carrier and the at least one pendulum mass. The pendulum stop device can be used to limit the oscillation angle, in particular in the case of a substantially maximum oscillation angle, when the at least one pendulum mass is pivoted out of the zero position into the two end positions. By means of the pendulum stop device, a stop force can be generated between the pendulum mass carrier and the at least one pendulum mass, for example, as a function of the oscillation angle. The stop force may be directed opposite the pendulum mass force. The pendulum mass force may be torsional induced. The stop force can act on the at least one pendulum mass such that the oscillation angle is reduced and/or limited. The stop force can be generated in dependence on the angle of oscillation and/or the weight and/or the speed of the at least one pendulum mass. The kinetic energy of the at least one pendulum mass can be eliminated or reduced by a stop and/or the movement of the at least one pendulum mass can be braked.
Starting from the intermediate position, a first oscillation angle region may be present. In the direction of the larger vibration angle, the second vibration angle region may be connected to the first vibration angle region. The first and second vibration angle regions may together form a maximum vibration angle region. The pendulum stop device can be inactive in the first oscillation angle range. The pendulum stop device can act in the second oscillation angle region.
The pendulum stop device can have at least one stop recess for the at least one stop element. The pendulum mass carrier may have at least one stop recess. The intermediate piece and/or the at least one stop element can be arranged, for example, at least in sections in the at least one stop recess. At least one pendulum mass can be arranged with its intermediate piece in at least one stop recess of the pendulum mass carrier. The intermediate part can be arranged in a central region and/or in the middle, in particular in the middle in the circumferential direction, of the at least one pendulum mass. The first and second pendulum mass parts may be disposed on both sides of the pendulum mass carrier. The intermediate piece can be formed substantially in a T shape. The intermediate piece may have a circumferential edge. The edges of the intermediate piece can be used to determine the pendulum rail together. The edge of the intermediate piece may have an abutment section. The contact portion of the edge of the intermediate piece can be used for limiting the oscillation angle of the at least one pendulum mass. The abutment section of the edge of the intermediate piece can correspond to the abutment section of the edge of the at least one stop recess. The abutment section of the edge of the intermediate piece and/or the abutment section of the edge of the at least one stop recess may have a substantially arc-shaped form. The at least one stop recess may be used to define a track, such as a wobble rail and/or a stop rail, and/or may have a kidney shape.
The pendulum stop device can have at least one stop element, in particular for bearing or impact damping
At least one pendulum mass can have at least one stop element. At least one stop element can be used for damping the contact or impact on the pendulum mass carrier. At least one stop element can be arranged in a loss-proof manner onAt least one pendulum mass or pendulum mass carrier. At least one stop element can be provided and/or arranged in a loss-proof manner on the intermediate piece. The at least one stop element and the at least one pendulum mass or pendulum mass carrier can be fixedly connected to one another, in particular form-fittingly connected, for example riveted, force-fittingly connected, for example screwed or crimped, or materially connected, for example glued or vulcanized. The at least one stop element and the intermediate piece can be fixedly connected to one another, in particular form-fittingly connected, for example riveted, non-fittingly connected, for example screwed or crimped, or materially connected, for example glued or vulcanized. The at least one stop element can be integrated, anchored or suspended at least in sections in the at least one pendulum mass or pendulum mass carrier. At least one stop element may be axially disposed between the first and second pendulum mass parts. The at least one stop element can be integrated, anchored or suspended at least in sections in the intermediate piece. At least one stop element can be arranged on the intermediate piece on the end side and/or radially inside in the circumferential direction. The at least one stop element may be substantially V-shaped. The at least one stop element may have a substantially arc-shaped form. The at least one stop element can surround and/or engage the intermediate piece in a loss-proof manner at the rear. At least one stop element may have an anchoring section and/or a hook element. The anchoring section and/or the hook-shaped element can be designed to provide or fix the at least one stop element in a loss-proof manner on the intermediate piece. At least one stop element can be arranged radially inside and/or active there. At least one stop element can be arranged radially on the inside on and/or at the at least one pendulum mass and/or the intermediate part and/or can act there. The at least one stop element can be arranged on the inner circumference or inner diameter of the intermediate part and/or of the at least one pendulum mass, in particular on the radially inner edge.
At least one stop element can be used for limiting the oscillation angle of at least one pendulum mass. The edge of the at least one stop element can have at least one abutment section. At least one contact section of the edge of the at least one stop element can be used for limiting the oscillation angle of the at least one pendulum mass. The abutment section of the edge of the intermediate piece can correspond to the abutment section of the edge of the at least one stop element. The abutment section of the edge of the at least one stop element may correspond to the abutment section of the edge of the at least one stop recess. The abutment section of the at least one stop element can have a substantially arc-shaped form. The abutment section of the edge of the at least one stop element can have at least one stop section. By means of the at least one stop section, the at least one stop element is first in contact with the at least one stop recess or with its abutment section in the final position, in particular in the circumferential direction. The edge-bearing section of the at least one stop element and/or its stop section can serve as a stop for the at least one pendulum mass, in particular in the circumferential direction. The abutment section of the edge of the at least one stop recess can serve as a stop for the at least one pendulum mass, in particular in the circumferential direction. The at least one stop element may act as a stop or a buffer or a damper. The at least one stop element may be a stop buffer or a stop damper. At least one stop element can have a profiled section, for example, adapted to a predetermined stop geometry. The at least one stop element may be resilient. The at least one stop element may be made of plastic, elastomer, rubber or raw rubber. The at least one stop element may be an elastomeric element and/or a stop rubber. The at least one stop element can be deformed and/or reshaped, for example elastically bent/deformed, depending on the oscillation angle, in particular as the oscillation angle increases. The at least one stop element can be moved back into its initial state again by its elasticity.
As the oscillation angle increases, the at least one pendulum mass can be stopped by means of the at least one stop element at an edge, such as an inner edge, of the at least one stop recess or at its abutment section and/or thus be subjected to a force directed counter to the direction of movement, such as a stop force. When the at least one stop element stops at an edge, for example an inner edge, of the at least one stop recess in the oscillation direction of the at least one pendulum mass, or at its abutment section, the oscillation energy of the at least one pendulum mass can be reduced, in particular, by means of the at least one stop element.
The at least one stop element may have at least one recess. For example, the at least one stop element may have a plurality, such as two, three, four or more recesses. The at least one stop element may have two recesses, which are arranged symmetrically opposite one another. The at least one stop element can have a reduced stiffness, for example at least in sections, relative to its intrinsic stiffness, for example the material intrinsic stiffness. The at least one stop element can have at least two levels of stiffness, for example, at least in sections. The reduced stiffness and/or the two-stage stiffness may be formed and/or defined by at least one recess. For example, the at least one stop element may have a reduced stiffness and/or a two-stage stiffness in the region of the at least one recess.
The at least one stop element may have at least one stop section. The at least one stop section of the at least one stop element and/or its outer face, in particular the outer face lying substantially radially on the inside, can be oriented and/or oriented substantially parallel to the at least one recess, for example parallel to the longitudinal or transverse extent of the at least one recess. The at least one stop section of the at least one stop element and/or its outer face, in particular the outer face which is substantially radially inner, may be oriented and/or oriented at an angle to the at least one recess, for example to the longitudinal or transverse extent of the at least one recess. The angle may be between 5 ° and 60 °, preferably between 10 ° and 30 °, and for example 20 °.
The at least one recess of the at least one stop element may extend substantially perpendicular to the force direction, such as the stop force direction. The at least one recess of the at least one stop element may extend substantially perpendicularly to a line running in a radial plane and through the center of gravity of the at least one stop element. The lines may be oriented or oriented in a force direction, such as a stopper force direction.
The at least one recess of the at least one stop element may be a cavity and/or substantially an elongated hole or bore. The at least one recess of the at least one stop element may define and/or bound a cavity.
The torque transmission device may have a centrifugal pendulum device as described above and/or below. The torque transmitting device may be used in a powertrain of a motor vehicle, such as a hybrid powertrain. The torque transmitting device may be a torsional vibration damper. The torsional vibration damper may be a single mass flywheel or a dual mass flywheel. The torque transmitting device may be used and/or configured for placement on a shaft, such as a crankshaft. The torque transmitting device may be a shaft of a travel drive machine, such as a crankshaft. The torque transmitting device may be a friction clutch device or a clutch disc. The torque transmitting device may be a hydrodynamic torque converter or an automatic torque converter. The torque transfer device may be a pulley decoupler. The torque transmitting device may be a transmission. The torque transmitting device may be an auxiliary unit drive or an electric machine of a hybrid powertrain.
In summary and in other words, the invention thus also provides a centrifugal pendulum device, such as a centrifugal pendulum, having acoustically optimized stop elements, such as stop rubber. The stop noise can be reduced by an optimized stop rubber. The stop rubber can have a cavity, such as a recess, for example a bore or an elongated hole. Thereby, the rigidity can be reduced. The stopper rubber may have a first softness level. When the pendulum mass comes to an abutment against a flange, such as a pendulum mass carrier, a lower rigidity is provided. The force direction, such as the stop force direction, can be in the direction of and/or through the center of gravity of the centrifugal force pendulum. The stop portion of the stop rubber can be formed substantially parallel to the cavity or can be oriented at an angle of, for example, 20 ° relative to the cavity. The centrifugal pendulum may be an internal or external centrifugal pendulum. The centrifugal force pendulum can be U-shaped or a U-shaped centrifugal force pendulum.
The invention makes it possible to reduce the stop of the pendulum mass in the final position (at the end of the raceway). Undesired noise, in particular stop noise and/or centrifugal pendulum noise, is reduced or prevented. The rigidity of the stopper member such as stopper rubber can be improved. The load and/or wear may be reduced. Start-stop performance can be improved.
Drawings
Embodiments of the invention will be described in detail below with reference to the accompanying drawings, which show schematically and exemplarily:
fig. 1 shows a centrifugal pendulum device;
fig. 2 shows a pendulum mass of a centrifugal pendulum device; and
fig. 3 shows a detail of the stop element.
Detailed Description
Fig. 1 shows a centrifugal force pendulum device 100 for a torque transmission device. The centrifugal pendulum device 100 has a pendulum mass carrier 102 which is rotatable about an axis of rotation, at least one pendulum mass 104 which is arranged on the pendulum mass carrier 102 so as to be displaceable along a pendulum rail between two end positions, and a pendulum stop 106 which acts between the pendulum mass carrier 102 and the at least one pendulum mass 104.
The pendulum stop 106 has at least one stop element 108. The at least one stop element 108 is made of rubber and serves as a stop damper for the at least one pendulum mass 104.
The pendulum stop 106 also has a stop recess 110 for the at least one stop element 108. At least one stop recess is provided in the pendulum mass carrier 102. At least one stop element 108 is arranged at least in sections in at least one stop recess 110.
As the oscillation angle increases, the at least one pendulum mass 104 can be stopped by means of the at least one stop element 108 at an edge 112, for example an inner edge, of the at least one stop recess 110, so that it is subjected to a force directed counter to the direction of movement. When the at least one stop element 108 stops at the edge 112 of the at least one stop recess 110 in the vibration direction of the at least one pendulum mass 104, the vibration energy of the at least one pendulum mass 104 can be reduced by means of the at least one stop element 108.
Fig. 2 shows a pendulum mass 104 in the form of a U-shaped pendulum. At least one of the pendulum masses 104 has a first pendulum mass component 114 (shown in fig. 1) and a second pendulum mass component 116 (shown in fig. 2). The first pendulum mass part 114 is not shown in fig. 2 for reasons of illustration. The first and second pendulum mass parts 114, 116 are arranged on both sides and axially opposite one another on the pendulum mass carrier 102 and are fixedly connected to one another. The pendulum mass carrier 102 is disposed between the first pendulum mass component 114 and the second pendulum mass component 116. At least one pendulum mass 104 also has an intermediate part 118, which is arranged axially between the first pendulum mass part 114 and the second pendulum mass part 116 and is connected thereto. The intermediate piece 118 is substantially T-shaped and is arranged at least in sections in the at least one stop recess 110. At least one stop element 108 is connected to the intermediate piece 118 in a loss-proof manner on the radial inside.
As shown in fig. 2 and 3, the at least one stop element 108 has at least one recess 120. In the present exemplary embodiment, at least one stop element 108 has two symmetrically opposite recesses 120. The recess 120 of the at least one stop element 108 is formed as an elongated hole and delimits or delimits a cavity. At least one stop element 108 has, at least in sections, a reduced stiffness relative to its intrinsic stiffness, such as a material intrinsic stiffness, or at least in sections, at least two levels of stiffness. The reduced stiffness and/or the two-stage stiffness are formed and defined by the recess 120, respectively. In particular in the region of the recess 120, the at least one stop element 108 has a reduced stiffness and/or a two-stage stiffness.
The recess 120 of the at least one stop element 108 extends substantially perpendicularly to the stop force direction 122 or perpendicularly to a line 122 running in a radial plane and through the center of gravity of the at least one stop element 108. The force direction may extend in the direction of the center of gravity.
At least one stop element 108 has at least one stop segment 124, which is oriented and/or oriented substantially parallel to at least one recess 120 (illustrated by a solid line in fig. 3) or which can be oriented and/or oriented at an angle of, for example, 20 °, in particular between 5 ° and 60 °, preferably between 10 ° and 30 ° (illustrated by a dashed line in fig. 3) relative to at least one recess.
"may" especially denote optional features of the invention. There are thus also improvements and/or embodiments of the invention, which additionally or alternatively have one or more corresponding features.
From the combinations of features presently disclosed, individual features may also be selected as desired, and the claimed subject matter may be defined in combination with other features without necessarily requiring a structural and/or functional relationship between the features.
List of reference numbers:
100. centrifugal pendulum device
102. Pendulum block bearing piece
104. Swinging block
106. Pendulum stopping device
108. Stop element
110. Stop recess
112. Edge of the stop recess
114. First pendulum block component
116. Second pendulum block component
118. Intermediate piece
120. Recess in a stop element
122. Direction/line of stopping force
124. A stopper section.
Claims (10)
1. A centrifugal pendulum device (100) for a torque transmission device, the centrifugal pendulum device (100) having: a pendulum mass carrier (102) rotatable about an axis of rotation; at least one pendulum mass (104) which is arranged on the pendulum mass carrier (102) so as to be movable along a pendulum rail between two end positions; and a pendulum stop (106) acting between the pendulum mass carrier (102) and the at least one pendulum mass (104),
it is characterized in that the preparation method is characterized in that,
the pendulum stop device (106) has at least one stop element (108), wherein the at least one stop element (108) has at least one recess (120).
2. Centrifugal pendulum device (100) of claim 1,
characterized in that the at least one stop element (108) has, at least in sections, a reduced stiffness compared to its intrinsic stiffness, for example a material intrinsic stiffness, and/or in that the at least one stop element (108) has, at least in sections, at least two levels of stiffness.
3. Centrifugal pendulum device (100) according to at least one of the preceding claims,
characterized in that the at least one stop element (108) is arranged in a loss-proof manner on the at least one pendulum mass (104) or on the pendulum mass carrier (102).
4. Centrifugal pendulum device (100) of at least one of the preceding claims,
the at least one stop element (108) and the at least one pendulum mass (104) or the pendulum mass carrier (102) are fixedly connected to one another, in particular form-fittingly connected, for example riveted, non-fittingly connected, for example screwed or crimped, or materially connected, for example glued or vulcanized.
5. Centrifugal pendulum device (100) according to at least one of the preceding claims,
characterized in that the at least one stop element (108) has two recesses (120) which are arranged symmetrically opposite one another.
6. Centrifugal pendulum device (100) according to at least one of the preceding claims,
characterized in that the at least one stop element (108) has at least one stop section (124) which is oriented and/or oriented substantially parallel to the at least one recess (120) or is oriented and/or oriented at an angle of, in particular, between 5 ° and 60 °, preferably between 10 ° and 30 °, for example 20 °, relative to the at least one recess (120).
7. Centrifugal pendulum device (100) of at least one of the preceding claims,
characterized in that the at least one recess (120) of the at least one stop element (108) extends substantially perpendicularly to the stop force direction (122) and/or perpendicularly to a line (122) running in a radial plane and through the center of gravity of the at least one stop element (108).
8. Centrifugal pendulum device (100) of at least one of the preceding claims,
characterized in that the at least one recess (120) of the at least one stop element (108) is a cavity and/or is essentially an elongated hole or bore.
9. Centrifugal pendulum device (100) of at least one of the preceding claims,
characterized in that the at least one stop element (108) is made of plastic, rubber or crude rubber.
10. A torque transmitting device for a drive train of a motor vehicle,
characterized in that the torque transmission device has a centrifugal pendulum device (100) according to at least one of the preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021113226 | 2021-05-21 | ||
| DE102021113226.6 | 2021-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115370710A true CN115370710A (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210507878.9A Pending CN115370710A (en) | 2021-05-21 | 2022-05-11 | Centrifugal pendulum device and torque transmission device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115370710A (en) |
| DE (1) | DE102022104910A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016125380A1 (en) | 2016-12-22 | 2018-06-28 | Schaeffler Technologies AG & Co. KG | Centrifugal pendulum device and torque transmission device |
-
2022
- 2022-03-02 DE DE102022104910.8A patent/DE102022104910A1/en active Pending
- 2022-05-11 CN CN202210507878.9A patent/CN115370710A/en active Pending
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| Publication number | Publication date |
|---|---|
| DE102022104910A1 (en) | 2022-11-24 |
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