CN215487441U

CN215487441U - Low-friction and noise-reduction centrifugal pendulum device

Info

Publication number: CN215487441U
Application number: CN202120448043.1U
Authority: CN
Inventors: 杨明; 李宵坷; 丁衡俊; 倪川
Original assignee: Cnc Driveline Technology Co ltd
Current assignee: Cnc Driveline Technology Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-01-11
Anticipated expiration: 2031-03-02
Also published as: DE202021103343U1

Abstract

The application discloses a low-friction and noise-reducing centrifugal pendulum device, which comprises a base plate and at least two pendulum parts; the base disc is provided with at least two swinging windows arranged along the circumferential direction of the base disc; the at least two swing parts are arranged on the swing window in a one-to-one correspondence manner and can swing circumferentially along the swing window; each swinging part comprises an inner swinging block, two outer swinging blocks and two swinging block gaskets; the inner swing block is arranged in the swing window; the two outer swinging blocks are axially symmetrically arranged on two sides of the base plate relative to the inner swinging block and are fixedly connected with the inner swinging block; the two swing block gaskets are respectively arranged between the outer swing block and the base plate, are fixedly connected with the inner swing block and/or the outer swing block and are used for separating the outer swing block from the base plate; each swing block gasket is provided with a concave-convex structure which is contacted with the base disc on one side surface facing the axial direction of the base disc. Can avoid or weaken the noise of strikeing between goods of furniture for display rather than for use and the base plate by a wide margin, avoid the direct collision wearing and tearing between goods of furniture for display rather than for use and the base plate, increase life can reduce the damping of goods of furniture for display rather than for use motion again.

Description

Low-friction and noise-reduction centrifugal pendulum device

Technical Field

The application relates to the technical field of automobile transmission, in particular to a low-friction noise-reduction centrifugal pendulum device.

Background

The centrifugal pendulum is one of effective components for damping vibration in an automobile transmission system, and particularly has obvious damping effect on a torsional damper. The prior centrifugal pendulum mainly comprises a pendulum part, a base plate and the like, wherein the pendulum part and the base plate are generally made of metal materials. When the engine is started or stopped or the automobile is accelerated and decelerated suddenly, the centrifugal pendulum device is not in a centrifugal balance state, so that the pendulum is very sensitive to gravity, which can cause the pendulum to swing irregularly and greatly, and metal knocking sound generated by axial impact collision between the pendulum and the base plate, and the noise can cause discomfort to people in the automobile. Meanwhile, the direct collision abrasion of the swing part and the base plate can also influence the service life of the centrifugal pendulum.

SUMMERY OF THE UTILITY MODEL

In view of this, the purpose of this application is to provide a centrifugal pendulum device that low friction, fall make an uproar, can avoid or weaken the noise of knocking between goods of furniture for display rather than for use and the base plate by a wide margin, avoid the direct collision wearing and tearing between goods of furniture for display rather than for use and the base plate, increase life, the damping that can furthest reduction goods of furniture for display rather than for use motion simultaneously.

In order to achieve the technical purpose, the application provides a low-friction and noise-reducing centrifugal pendulum device, which comprises a base plate and at least two pendulum parts;

the base disc is provided with at least two swinging windows arranged along the circumferential direction of the base disc;

the at least two swinging parts are arranged on the swinging window in a one-to-one correspondence manner and can swing circumferentially along the swinging window;

each of the ornaments comprises an inner pendulum block, two outer pendulum blocks and two pendulum block gaskets;

the inner swing block is arranged in the swing window;

the two outer swing blocks are axially and symmetrically arranged on two sides of the base plate relative to the inner swing block and are fixedly connected with the inner swing block;

the two swing block gaskets are respectively arranged between the outer swing block and the base plate, are fixedly connected with the inner swing block and/or the outer swing block and are used for separating the outer swing block from the base plate;

and a concave-convex structure which is contacted with the base plate is arranged on one side surface of each swinging block gasket facing the axial direction of the base plate.

Further, the concave-convex structure is composed of a plurality of convex structures and/or a plurality of groove structures.

Further, the concave-convex structure is composed of a plurality of equidistant grooves distributed in a staggered mode transversely and longitudinally and/or a plurality of oblique grooves distributed at intervals.

Further, the concavo-convex structure is composed of a plurality of hemispherical protrusions.

Further, the concave-convex structure is composed of a plurality of longitudinally arranged strip-shaped cambered surface protrusions.

Further, the pendulum mass shim comprises a master shim and at least one slave shim;

at least one slave gasket is arranged on one axial side surface of the master gasket facing the base plate;

the concave-convex structure contacted with the base disc is arranged on one side surface of the slave gasket facing the axial direction of the base disc.

Furthermore, the outer swing block is fixedly connected with the inner swing block through a plurality of rivets.

Furthermore, the swing block gasket is fixedly connected with the outer swing block in an attaching mode.

Furthermore, at least two protruding buckles are arranged on one axial side surface, facing the outer swing block, of each swing block gasket;

and each outer swinging block is provided with a mounting hole for the convex buckles to be clamped in one by one.

Further, the swing block gasket is made of a plastic damping material or an elastic non-metal material.

According to the technical scheme, the swing block gaskets are respectively arranged between the outer swing block and the base plate, the outer swing block is separated from the base plate, the swing piece is prevented or greatly weakened, the knocking noise between the base plate is avoided, the swing piece is prevented from being directly collided with the base plate, and the service life is prolonged. And each swing block gasket is provided with a concave-convex structure contacted with the base plate on one side surface facing the axial direction of the base plate, so that the contact surface of the swing block gasket and the base plate can be reduced, the damping of the movement of the swing part is reduced, and the response sensitivity of the centrifugal pendulum to the torsional oscillation is not influenced. Simultaneously, concave-convex structure has the space, can increase the circulation of air, improves heat dispersion, can also get rid of the dust that the friction produced fast, has greatly improved the moving property of goods of furniture for display rather than for use, prevents to make goods of furniture for display rather than for use motion produce the jamming because of overheated inflation or friction dust can not in time discharge.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic, partially exploded view of a low friction, noise-reducing centrifugal pendulum device provided herein;

FIG. 2 is a partial cross-sectional view of a low friction, noise-reducing centrifugal pendulum device provided herein;

FIG. 3 is a front view of a first configuration of a pendulum mass shim for a low friction, noise-reducing centrifugal pendulum device provided herein;

FIG. 4 is a side view of a first configuration of a pendulum mass shim for a low friction, noise reducing centrifugal pendulum device provided herein;

FIG. 5 is a front view of a second configuration of a pendulum mass shim for a low friction, noise-reducing centrifugal pendulum device provided herein;

FIG. 6 is a side view of a second configuration of a pendulum mass shim of a low friction, noise reducing centrifugal pendulum device provided herein;

FIG. 7 is a front view of a third configuration of a pendulum mass shim for a low friction, noise-reducing centrifugal pendulum device provided herein;

FIG. 8 is a top view of a third configuration of a pendulum mass shim for a low friction, noise reducing centrifugal pendulum device provided herein;

FIG. 9 is a front view of a fourth configuration of a pendulum mass shim for a low friction, noise-reducing centrifugal pendulum device provided herein;

FIG. 10 is a side view of a fourth configuration of a pendulum mass shim for a low friction, noise reducing centrifugal pendulum device provided herein;

FIG. 11 is a front elevational view of a fifth configuration of a pendulum mass shim for a low friction, noise reducing centrifugal pendulum device provided herein;

FIG. 12 is a top view of a fifth configuration of a pendulum mass shim for a low friction, noise reducing centrifugal pendulum device provided herein;

FIG. 13 is a top view of a sixth configuration of a pendulum mass shim for a low friction, noise reducing centrifugal pendulum device provided herein;

in the figure: 100. a base plate; 200. a decoration piece; 110. swinging the window; 211. mounting holes; 210. an outer swing block; 220. an inner swing block; 2201. a roller; 230. riveting; 240/240a/240b/240c/240d/240e/240f, a rocker pad; 241. a convex buckle is arranged; 242/242a/242b/242c/242d/242e/242f, concave-convex structure; 243a, equidistant grooves; 243b, hemispherical convex; 243c, oblique slotting; 243e, a strip-shaped cambered surface protrusion; 240f-1, main pad; 240f-2, slave shim.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application discloses a low-friction and noise-reducing centrifugal pendulum device.

Referring to fig. 1, an embodiment of a low-friction and noise-reducing centrifugal pendulum device provided in the embodiments of the present application includes:

a base plate 100 and at least two ornaments 200.

The base disc 100 is provided with at least two swing windows 110 arranged along the circumferential direction of the base disc 100, and the plurality of swing windows 110 may be uniformly distributed in the circumferential direction.

At least two swing parts 200 are correspondingly disposed on the swing window 110, and can swing circumferentially along the swing window 110.

Each of the swing elements 200 includes an inner swing block 220, two outer swing blocks 210, and two swing block spacers 240, wherein the inner swing block 220 is disposed in the swing window 110, and the fitting between the inner swing block 220 and the swing window 110 may refer to the design of the existing inner swing block 220, for example, the fitting between the inner swing block and the swing window 110 is realized by a plurality of rollers 2201, which is not described in detail herein.

The two outer swing blocks 210 are axially symmetrically arranged on two sides of the base plate 100 relative to the inner swing block 220, and are fixedly connected with the inner swing block 220. In this application, the two out-swinging blocks 210 are specifically two symmetrical fan-shaped metal plates with the same shape, and the purpose is to allocate the swinging mass of the whole swing part 200, thereby realizing the vibration reduction adjustment process. The outer swing blocks 210 respectively arranged on the two sides of the base plate 100 enable the two sides of the base plate 100 to have the same mass, the whole swing block has a symmetrical balance structure, and the rotation stability is improved. The area of the outer swing block 210 is larger than the area of the swing window 110, so that the swing element 200 is limited in the swing window 110 and cannot be separated from the base plate 100.

The two swing block gaskets 240 are respectively disposed between the outer swing block 210 and the base plate 100, and are fixedly connected to the inner swing block 220 and/or the outer swing block 210, for separating the outer swing block 210 from the base plate 100. The pendulum mass gasket 240 is axially located between the pendulum mass 210 and the base plate 100, which means that the pendulum mass gasket 240 can reduce the axial irregular swing of the pendulum mass 200 to prevent the axial impact between the pendulum mass 200 and the base plate 100, i.e., avoid the impact between the pendulum mass 210 and the base plate 100, further effectively avoid the impact sound between the pendulum mass 200 and the base plate 100, reduce the metal impact sound of the centrifugal pendulum when the engine is started or stopped, and improve the comfort of riding. Meanwhile, direct friction and abrasion between the swing part 200 and the base plate 100 can be avoided, and the service life of the centrifugal pendulum is prolonged. Further, each of the pendulum mass spacers 240 is provided with an uneven asperity structure 242 that contacts the base plate 100 on the side surface facing the axial direction of the base plate 100. With the design of the pendulum mass pad 240 with the uneven concave-convex structure 242, the contact area between the pendulum mass pad 240 and the base plate 100 can be reduced, the resistance of the pendulum mass 200 during the movement process can be reduced, and the response sensitivity of the centrifugal pendulum to the torsional oscillation can not be affected. Meanwhile, due to the fact that the concave-convex structure 242 has the characteristic of gaps, air circulation can be increased, heat dissipation performance is improved, dust generated by friction can be quickly removed, the moving performance of the swing part 200 is greatly improved, and clamping stagnation caused by movement of the swing part 200 due to the fact that overheat expansion or friction dust cannot be timely discharged is prevented.

It should be noted that, in the present application, the number of the out-swing blocks 210 and the in-swing blocks 220 is described, so as to clarify that the out-swing blocks 210 are respectively disposed on two sides of the base plate 100, the swing block gaskets 240 are respectively disposed between the out-swing blocks 210 and the base plate 100, but not limited that only one out-swing block 210 is respectively disposed on two sides of the base plate 100 or only one swing block gasket 240 is disposed between the base plate 100 and the out-swing blocks 210. Since the inner swing block 220, the outer swing block 210 and the swing block spacer 240 themselves can be formed by stacking a plurality of unit modules or be an integral structure, no matter how many outer swing blocks 210 are arranged on both sides of the base plate 100, how many swing block spacers 240 are arranged should also fall into the protection scope of the present application.

The above is a first embodiment of a centrifugal pendulum device with low friction and noise reduction provided in the present application, and the following is a second embodiment of a centrifugal pendulum device with low friction and noise reduction provided in the present application, specifically please refer to fig. 1 to 13.

The technical scheme based on the first embodiment is as follows:

further, in the case of the concave-convex structure 240, it may be composed of a plurality of convex structures and/or a plurality of concave-convex structures, wherein the convex structures or the concave-convex structures may be distributed along the circumferential direction or along the radial direction, and are not limited in particular.

The pendulum mass shim structure may be, for example, the following:

as shown in the pendulum mass shim 240a shown in fig. 3 and 4, the concave-convex structure 242a may be composed of a plurality of equidistant grooves 243a distributed in a staggered manner in a transverse and longitudinal direction, that is, the pendulum mass shim 240a is provided with a plurality of equidistant grooves 243a distributed in a staggered manner in a transverse and longitudinal direction to form the concave-convex structure 242a, the staggered bump portions may contact with the base plate 100 to reduce the frictional contact area, and the equidistant grooves 243a may be used to increase the chip removal and heat dissipation functions.

As shown in fig. 7 and 8, the protrusion 242c may be formed by a plurality of oblique slots 243c distributed at intervals, and this structural design also reduces the frictional contact area and increases the functions of removing chips and dissipating heat.

As shown in the pendulum mass shim 240d of fig. 9 and 10, the concave-convex structure 242d may be formed by combining a plurality of equidistant grooves 243a distributed in a staggered manner in the transverse and longitudinal directions and a plurality of oblique grooves 243c distributed at intervals. That is, the embodiment shown in fig. 3 and the embodiment shown in fig. 7 are combined, so that the frictional contact area can be reduced, and the chip removal and heat dissipation functions can be increased.

As shown in fig. 5 and fig. 6, the wobble block pad 240b, the concave-convex structure 242b may be composed of a plurality of hemispherical protrusions 243 b. This configuration further reduces the frictional contact area, which is beneficial in further reducing the resistance to movement of the pendulum 200.

As shown in fig. 11 and 12, the wobble block pad 240e, the concave-convex structure 242e may be composed of a plurality of longitudinally arranged strip-shaped protrusions 243 e. The linear contact is used to replace the surface contact, so that the sliding damping of the swing part 200 can be reduced, and the strip-shaped arc surface protrusions in the embodiment can be transversely arranged and obliquely arranged without limitation.

As shown in fig. 13, the pendulum mass shim 240f in this embodiment may be a non-integrated design, that is, may be composed of a plurality of single shims. For example, the swing block shim 240f includes a master shim 240f-1 and at least one slave shim 240f-2, wherein the at least one slave shim 240f-2 is mounted on one axial side surface of the master shim 240f-1 facing the base plate 100, and a concave-convex structure 242f contacting the base plate 100 is provided on one axial side surface of the slave shim 240f-2 facing the base plate 100. The swinging block gasket 240f is designed in a modularized split manner, so that the phenomenon that the whole gasket warps due to thermal expansion is avoided, and of course, under the condition that the slave gasket 240f-2 provided with the concave-convex structure 202f is almost abraded, only the corresponding slave gasket 240f-2 can be replaced, and the whole swinging block gasket 240f is not needed to be replaced. In addition, when the external axial space is limited, the main gasket 240f-1 can be eliminated, and the auxiliary gasket 240f-2 is directly and fixedly connected to the external pendulum block 210, so that the axial size of the whole centrifugal pendulum can be reduced.

Further, as shown in fig. 1 and 2, the outer swing block 210 is fixedly connected to the inner swing block 220 by a plurality of rivets 230, and the number of the rivets 230 may be four, which is not limited specifically. The swing block pad 240 may also be fixed by the rivet 230 and/or fixed to the inner swing block 220 or the outer swing block 210 by other fixing members.

Further, as shown in fig. 1 and 2, the swing block pad 240 may be attached to the outer swing block 210. Specifically, at least two protruding buckles 241 are arranged on one axial side surface of each swing block gasket 240 facing the outer swing block 210, and each outer swing block 210 is provided with a mounting hole 211 into which the protruding buckles 241 are clamped one by one. The swing block gasket 240 is fixedly attached to the inner side face of the outer swing block 210 through the raised buckle 241, and cannot fall off in the moving process of the swing part 200, the buckle type installation and fixation is easy for subsequent disassembly and maintenance, and other fixing modes can be adopted, and the limitation is not particularly required.

Further, the pendulum mass shim 240 may be made of a damping material such as plastic or other elastic non-metallic materials, and is not limited in particular.

While the present application provides a centrifugal pendulum device with low friction and noise reduction, it will be appreciated by those skilled in the art that various changes may be made in the embodiments and applications of the centrifugal pendulum device according to the concepts of the present application.

Claims

1. A low-friction and noise-reducing centrifugal pendulum device is characterized by comprising a base plate and at least two pendulum parts;

the inner swing block is arranged in the swing window;

2. A low-friction noise-reducing centrifugal force pendulum device according to claim 1, wherein the relief structure is comprised of a plurality of raised structures and/or a plurality of recessed structures.

3. A low-friction noise-reducing centrifugal pendulum device according to claim 2, wherein the concave-convex structure is composed of a plurality of equidistant grooves distributed in a staggered manner and/or a plurality of oblique grooves distributed at intervals.

4. A low-friction, noise-reducing centrifugal pendulum device according to claim 2, wherein the relief structure is comprised of a plurality of hemispherical protrusions.

5. A low-friction noise-reducing centrifugal pendulum device according to claim 2, wherein the relief structure is formed by a plurality of longitudinally arranged bar-shaped protrusions.

6. A low-friction, noise-reducing centrifugal pendulum device of claim 1 wherein the pendulum mass spacers comprise a master spacer and at least one slave spacer;

7. A low-friction, noise-reducing centrifugal pendulum device of claim 1 wherein the outer pendulum mass is fixedly attached to the inner pendulum mass by a plurality of rivets.

8. A low-friction, noise-reducing centrifugal pendulum device of claim 1 wherein the pendulum mass spacers are adhesively attached to the outer pendulum mass.

9. A low-friction, noise-reducing centrifugal pendulum device of claim 8 wherein each of said pendulum mass spacers has at least two raised snaps disposed on an axial side facing said outboard pendulum mass;

10. A low-friction, noise-reducing centrifugal pendulum device of claim 1 wherein the pendulum mass spacers are fabricated from a plastic damping material or a resilient non-metallic material.