CN216715110U

CN216715110U - Rotary connector for absorbing torsional vibration by utilizing hydraulic pressure

Info

Publication number: CN216715110U
Application number: CN202122761812.6U
Authority: CN
Inventors: 张华平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-06-10
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a rotary connector for absorbing torsional vibration by utilizing hydraulic pressure, which adopts a hydraulic scheme to absorb torsional vibration and comprises a driving disc and a driven disc which are coaxial, wherein an elastic body is arranged between stop blocks of the driving disc and the driven disc which are arranged along the circumferential direction to form an annular elastic space. The annular space is filled with a viscous body having a relatively high viscosity. When the rotation impact exists, the spring between the stop blocks is compressed to absorb the impact force, and meanwhile, the viscous body in the annular space can be extruded out from the gap between the main movable part and the driven movable part, so that resistance and damping are generated, and the strong damping effect is achieved on vibration.

Description

Rotary connector for absorbing torsional vibration by utilizing hydraulic pressure

Technical Field

The utility model relates to a rotary connector in the field of mechanical transmission.

Background

Various torsional vibration damping devices are currently on the market, such as couplings, clutch discs, etc., for connecting two shafts to transmit torque, some of which have a damping function to absorb shocks in the drive train. The basic principle is to utilize the elastic deformation of elastic elements arranged in the circumferential direction to buffer the impact, and the elastic elements also have the function of damping the vibration during the deformation.

For example, patent CN102261425A, torsional vibration damper with spring means, application No. 201110076538, applicant: bogghua, inventor: j-berlin, etc., achieves shock mitigation of variable stiffness by deformation of a plurality of circumferentially arranged springs, but does not greatly attenuate vibration.

Patent CN106763263A discloses a high-elastic coupling, in which an elastic material is disposed between a driving disc and a driven disc to reduce impact and damp vibration, and has the disadvantage that the rotation angle between the driving disc and the driven disc is very small, so that the damping and damping capabilities are weak.

In the present stage, it is necessary to provide a method and a structure for improving the buffering capacity and having a strong vibration attenuation capacity in a wide frequency band.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides the rotary connector for absorbing torsional vibration by utilizing hydraulic pressure, which has good buffering effect and stronger vibration attenuation capability.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides an utilize hydraulic pressure to absorb rotary connector of torsional vibration, includes coaxial arrangement can relative rotation's each other drive disk and driven plate, still is provided with the sealing washer and makes the drive disk with be formed with inclosed cavity between the driven plate, the circumference of driven plate is provided with a plurality of driven dogs, be provided with a plurality of initiative dogs that correspond driven dog on the drive disk, it is adjacent be provided with elastomer I or elastomer II between initiative dog and the driven dog, it has the viscidity body to fill in the cavity.

Further, to achieve vibration damping, the viscous body is a fluid or semi-fluid viscous body.

In order to carry out spacingly to the elastomer, the outer circumference of driven plate has annular groove body space, the interval has arranged a plurality of driven dogs in the annular groove body, be provided with indent annular groove in the drive plate, interval has arranged a plurality of initiative dogs in the middle of the indent annular groove, annular groove body and indent annular groove enclose into a buffer space who holds initiative dog, driven dog, elastomer I, elastomer II jointly, buffer space belongs to partly of inclosed cavity.

Further, in order to ensure the smooth buffering of the elastic body, the centers of the driving stop block and the driven stop block are positioned on the same circumferential line.

Preferably, the elastic bodies I and II are coil springs.

In order to improve the buffering efficiency and increase the internal resistance, the elastic body I and the elastic body II have different elastic coefficients.

Further, in order to improve the buffering effect, the edge of the annular groove body space is provided with irregular recesses and protrusions, so that an irregular gap is formed between the driven disc and the driving disc.

In some cases where bidirectional damping is not required, the improvement can be further improved, and the driving block and/or the driven block are/is provided with a one-way channel. And a channel for the viscous body to pass through is arranged on the driving stop block and/or the driven stop block, and a one-way valve is arranged in the channel.

Furthermore, the viscous body is macromolecular fluid resistant to high temperature and high viscosity.

The beneficial effects of the utility model are: the utility model adopts a hydraulic scheme to absorb torsional vibration, and comprises a driving disc and a driven disc which are coaxial, wherein an elastic body is arranged between stop blocks of the driving disc and the driven disc which are arranged along the circumferential direction, so that an annular elastic space is formed. The annular space is filled with a viscous body having a relatively high viscosity. When the rotation impact exists, the spring between the stop blocks is compressed to absorb the impact force, and meanwhile, the viscous body in the annular space can be extruded out from the gap between the main movable part and the driven movable part, so that resistance and damping are generated, and the strong damping effect is achieved on vibration. The utility model realizes the transmission of the torsional load through the resistance and the damping generated by the viscous body flowing through the gap, has simple structure, strong bearing capacity and wide application range, and can be used for flywheels of engines, various couplings and the like.

Drawings

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

FIG. 1 is a schematic structural view;

fig. 2 is a schematic cross-sectional view.

Wherein: 1 initiative dish, 2 driven plate, 3 initiative dogs, 4 driven dogs, 5 elastomer I, 6 sealing washers, 7 elastomer II, 11 clearances.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following. Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Before describing the embodiments, some necessary terms need to be explained. For example:

the various terms appearing in this application are used for the purpose of describing particular embodiments only and are not intended as limitations on the utility model, as the singular is intended to include the plural unless the context clearly dictates otherwise.

When the terms "comprises" and/or "comprising" are used in this specification, these terms are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence and/or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The implementation scheme is as follows: the utility model provides a device for absorbing torsional vibration by utilizing hydraulic pressure, which comprises a driving disk 1, a driving stop dog 3 fixedly connected on the driving disk, a driven disk 2, a driven stop dog 4 fixedly connected on the driven disk, a spring, a viscous body and a sealing ring 6, wherein the spring is arranged between the driving stop dog and the driven stop dog, and the spring and the driving stop dog and the driven stop dog are arranged in a circumferential space. The closed cavity between the driving disc 1 and the driven disc 2 is filled with a viscous body, when the device rotates, the viscous body fills an annular space formed by the spring and the driving and driven stop blocks under the action of centrifugal force, and when torque changes, the viscous body can be compressed and flows through a gap between the driving disc and the driven disc, so that resistance and damping are generated. A gap 11, namely a gap for passing the viscous body, is arranged between the driving and driven disks.

The invention comprises a driving disc 1 and a driven disc 2 which are coaxial and are respectively used for being connected with a driving shaft and a driven shaft, and stop blocks are arranged in the circumferential direction of the driving disc and the driven disc. An elastic body is arranged between the stop blocks of the main driving disc and the driven disc along the circumferential direction. The driving stop 3, the driven stop 4 and the elastic body are sequentially arranged along the circumferential direction of the driven disc 2, the outside of the driven disc is surrounded by the driving disc 1, and an annular space is formed. The annular space is filled with a viscous body with relatively high viscosity, which may be a fluid or semi-fluid. When the driving disc 1 rotates, the driving stopper 3 sequentially pushes the elastic body and the driven stopper 4 to rotate around the rotating shaft together. When a rotational impact exists, the spring between the stop blocks can be compressed to absorb the impact force, and meanwhile, the viscous body in the annular space can be extruded from the gap between the main driving part and the driven part, and the two functions are as follows: 1, generating resistance to assist the spring to play a role of transmission torque; 2, damping is generated, and vibration is strongly damped. Moreover, since the resistance and the damping are increased as the torsion angle is increased, the gap between the master and slave disks can be properly designed to effectively cope with various loads and impacts without designing a too thick spring, which can reduce the weight. The gap between the main driving disk and the driven disk can be designed to be unequal in width in the circumferential direction, so that the resistance to impact and the damping capacity to vibration of the technical scheme can be more carefully matched according to actual use scenes, and the requirements are more extensive.

The working principle is as follows:

the driving disc 1 and the driven disc 2 may be exchanged to be used as a driving element or a driven element according to different practical application scenarios. The driving plate 1 is connected with a prime motor, and a plurality of driving stop blocks 3 are arranged on the inner circumference of the driving plate. The driven disc 2 is coaxial with the driving disc, and a plurality of driven stop blocks 4 are circumferentially arranged in an inner cavity of the driven disc. An elastic body I5 or an elastic body II 7 is arranged between the driving stop 3 and the driven stop 4, and as an alternative scheme of the embodiment, the elastic body I and the elastic body II are preferably spiral springs. The rigidity of the elastomer I5 and the elastomer II 7 can be different according to practical application scenes. In the technical scheme, two elastic bodies with different rigidities are adopted, so that the vibration scene with a wider range of frequencies can be adapted. The driving disc 1 and the driven disc 2 can rotate freely, a gap 11 is arranged between the driving disc and the driven disc, and a sealing ring 6 is arranged at the joint of the driving disc and the driven disc close to the central part to prevent the viscous body from leaking. The inner cavity of the driving disc 1 is filled with sticky material, the specific material depends on the actual application scene, when the driving disc rotates, the sticky material is distributed on the circumference of the inner cavity due to centrifugal force, and the gap between the elastic body and the main and driven stop blocks is filled. When the system has impact or torsion load change, the relative angular displacement between the driving stop 3 of the driving disk 1 and the driven stop 4 of the driven disk 2 occurs, wherein a group of elastic bodies, such as the elastic body II 7, can be compressed, the cavity in which the elastic bodies are positioned is also compressed to be small, viscous bodies in the cavity are extruded out along the gap 11, the process generates resistance and damping, the resistance can bear the torque of the system, and the damping is used for preventing the system from generating continuous vibration, noise and even resonance. When the impact force disappears, the compressed elastic body II 7 is slightly lengthened, the cavity in which the elastic body II 7 is located is also enlarged, the viscous body returns to the cavity in which the elastic body II 7 is located through the gap 11 under the action of centrifugal force, the elastic body I5 and the cavity in which the elastic body I5 is located are shortened, the viscous body in the cavity is extruded out through the gap 11, and resistance and damping are generated in the process. Thus, the whole forward and reverse directions have resistance and damping.

As an alternative, if the application scenario does not require bidirectional damping, a one-way passage may be provided on the stopper, i.e., a one-way valve may be provided on the passage through which the viscous body passes, thereby achieving unidirectional damping.

In conclusion, the utility model realizes the transmission of the torsional load through the resistance and the damping generated by the viscous body flowing through the gap, has simple structure, strong bearing capacity and wide application range, and can be used for flywheels of engines, various couplings and the like.

In other technical features in this embodiment, those skilled in the art can flexibly select and use the features according to actual situations to meet different specific actual requirements. However, it will be apparent to those of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known components, structures or parts are not described in detail in order to avoid obscuring the present invention, and the technical scope of the present invention is defined by the claims.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are used in a generic sense as is understood by those skilled in the art. For example, the components may be fixedly connected, movably connected, integrally connected, or partially connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected inside two elements, and the like, and for those skilled in the art, specific meanings of the above terms in the present invention may be understood according to specific situations, that is, the expression of the language used herein may flexibly correspond to the implementation of the actual technology, and the expression of the language used in the specification (including the drawings) of the present invention does not constitute any single restrictive interpretation of the claims.

Modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, which should be limited only by the appended claims. In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known techniques, such as specific construction details, operating conditions, and other technical conditions, have not been described in detail in order to avoid obscuring the present invention.

Claims

1. A rotary connector for absorbing torsional vibration using hydraulic pressure, characterized in that: including coaxial arrangement relative rotation's each other drive disk and driven disk, still be provided with the sealing washer make the drive disk with be formed with inclosed cavity between the driven disk, the circumference of driven disk is provided with a plurality of driven dogs, be provided with a plurality of initiative dogs that correspond driven dog on the drive disk, it is adjacent be provided with elastomer I or elastomer II between initiative dog and the driven dog, it has viscidity body to fill in the cavity.

2. A rotary connector for absorbing torsional vibrations using hydraulic pressure as set forth in claim 1, wherein: the viscous body is a fluid or semi-fluid viscous body.

3. A rotary connector for absorbing torsional vibrations using hydraulic pressure as claimed in claim 1, wherein: the outer circumference of driven plate has cyclic annular cell body space, the interval has arranged a plurality of driven dogs in the cyclic annular cell body, be provided with interior concave ring groove in the initiative dish, interval has arranged a plurality of initiative dogs in the interior concave ring groove, cyclic annular cell body encloses into a buffer space who holds initiative dog, driven dog, elastomer I, elastomer II with interior concave ring groove jointly, buffer space belongs to partly of inclosed cavity.

4. A rotary connector for absorbing torsional vibrations using hydraulic pressure as defined in claim 3, wherein: the centers of the driving stop block and the driven stop block are positioned on the same circumferential line.

5. A rotary connector for absorbing torsional vibrations using hydraulic pressure as set forth in claim 1, wherein: the elastic body I and the elastic body II are spiral springs.

6. A rotary connector for absorbing torsional vibrations using hydraulic pressure as set forth in claim 5, wherein: the elastomer I and the elastomer II have different elastic coefficients.

7. A rotary connector for absorbing torsional vibrations using hydraulic pressure as set forth in claim 3, wherein: the edge of the annular groove body space is provided with irregular recesses and projections, so that an irregular gap is formed between the driven disc and the driving disc.

8. A rotary connector for absorbing torsional vibrations using hydraulic pressure as claimed in claim 1, wherein: and the driving stop block and/or the driven stop block are/is provided with one-way channels.

9. A rotary connector for absorbing torsional vibrations using hydraulic pressure as claimed in claim 8, wherein: and a channel for the viscous body to pass through is arranged on the driving stop block and/or the driven stop block, and a one-way valve is arranged in the channel.

10. A rotary connector for absorbing torsional vibrations using hydraulic pressure as set forth in claim 1, wherein: the viscous body is macromolecular fluid with high temperature resistance and high viscosity.