A multi-layered composite elastomeric assembly for a driveline system

Abstract

The present application relates to the technical field of mechanical transmission, and particularly relates to a multilayer composite elastomer assembly for a transmission system, which comprises an annular metal framework, a radial elastic layer and an axial composite elastic layer, the metal framework has an inner circumferential surface and an outer circumferential surface, the inner circumferential surface of the metal framework is provided with inner teeth arranged in a circumferential direction at intervals, the radial elastic layer, the metal framework and the axial composite elastic layer are sequentially arranged in a radial direction from inside to outside, the radial elastic layer is used for being connected with a transmission component, the axial composite elastic layer is used for being crimped with a connecting component, the metal framework is located between the radial elastic layer and the axial composite elastic layer as an intermediate bearing structure, the radial elastic layer can produce radial compression, stretching or shearing deformation between the transmission component and the metal framework, the axial composite elastic layer can produce axial compression or rebound deformation between the connecting component and the metal framework, the arrangement requirement of an additional elastic compensation part is reduced, and the transmission connection structure is more concentrated.

Description

Technical Field

[0001] This invention relates to the field of mechanical transmission technology, and more specifically to a multilayer composite elastomer assembly for a transmission system. Background Technology

[0002] In the transmission systems of rotating equipment such as motors, gearboxes, fans, and pumps, it is usually necessary to install elastic connection components between the driving end and the driven end. These elastic connection components are used to transmit torque between adjacent transmission components and adapt to axial, radial, and angular relative offsets caused by installation errors, thermal expansion, deformation of the supporting foundation, or changes in operating load through elastic deformation. Commonly used elastic connection components in existing transmission systems include lamellar couplings, star couplings, diaphragm couplings, and structures such as rubber rings and rubber blocks. Among them, lamellar couplings and star couplings usually have an elastic block between the claw-shaped parts of the two half-couplings, and the torque is mainly transmitted through the contact surface between the claw-shaped parts and the elastic block. Diaphragm couplings usually connect the flanges on both sides through a metal diaphragm assembly and rely on the elastic deformation of the diaphragm assembly to adapt to axial or angular offsets. Ordinary rubber ring or rubber block structures are usually placed between adjacent connecting parts, and the connection is achieved through the compression or shear deformation of the rubber material.

[0003] In the above structures, the elastic blocks of the plum blossom coupling and the star coupling are mostly arranged between adjacent claw-shaped parts. The elastic blocks participate in torque transmission and offset compensation at the same time. When there is radial offset or angular deflection of the transmission component, the local contact surface of the elastic block is prone to concentrated pressure area. Moreover, its axial deformation space is limited by the structure of the two half couplings, making it inconvenient to arrange elastic areas for radial deformation and axial deformation respectively. The diaphragm coupling mainly bears tensile, compressive or bending deformation through the metal diaphragm assembly. The diaphragm assembly and the flanges on both sides are usually connected by bolts, which can adapt to a certain axial or angular offset. However, its elastic deformation part is concentrated on the diaphragm assembly. It lacks the rubber composite layer structure located between the inner mating surface and the outer pressing surface of the transmission component, making it difficult to form a structural arrangement that separates the inner radial elastic connection and the outer axial pressing elastic connection.

[0004] Ordinary rubber rings or rubber blocks often adopt the form of integral rubber parts or rubber parts bonded to metal parts. In this type of structure, the rubber parts and metal parts are usually connected by a plane, cylindrical surface or local bonding surface. The metal parts do not have tooth-shaped protrusions that are distributed circumferentially and embedded in the inner and outer rubber layers respectively. When the component is subjected to alternating torque or pressure load, the connection interface between the rubber parts and the metal parts mainly relies on the bonding surface for bearing. Relative slippage, local separation or debonding can easily occur at the connection interface. Summary of the Invention

[0005] This invention addresses the technical problems existing in the prior art by providing a multilayer composite elastomer assembly for a transmission system.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A multilayer composite elastomer assembly for a transmission system includes an annular metal skeleton, a radial elastic layer, and an axial composite elastic layer. The metal skeleton has an inner circumferential surface and an outer circumferential surface. The inner circumferential surface of the metal skeleton is provided with internal teeth arranged at intervals along the circumference, and the outer circumferential surface of the metal skeleton is provided with external teeth arranged at intervals along the circumference. The radial elastic layer is integrally formed on the inner circumferential surface of the metal skeleton and covers the internal teeth. The inner circumferential surface of the radial elastic layer constitutes an inner mating surface for connecting with a transmission component. The axial composite elastic layer is integrally formed on the outer circumferential surface of the metal skeleton and covers the external teeth. The outer circumferential surface of the axial composite elastic layer constitutes an outer bearing surface for pressing with a connecting component. The radial elastic layer, the metal skeleton, and the axial composite elastic layer are arranged sequentially from the inside to the outside along the radial direction.

[0007] In a preferred embodiment, the internal teeth are tooth-shaped protrusions that bulge radially inward on the inner circumferential surface of the metal skeleton, and a plurality of the internal teeth are evenly distributed along the circumference of the metal skeleton.

[0008] In a preferred embodiment, the external teeth are tooth-shaped protrusions that bulge outward radially on the outer circumferential surface of the metal skeleton, and a plurality of the external teeth are evenly distributed along the circumference of the metal skeleton.

[0009] In a preferred embodiment, both the inner and outer teeth are rectangular teeth, and the inner and outer teeth extend along the axial direction of the metal skeleton, respectively.

[0010] In a preferred embodiment, the internal teeth and external teeth are arranged in a staggered manner in the circumferential direction of the metal frame.

[0011] In a preferred embodiment, an internal tooth groove is formed between two adjacent internal teeth, and the radial elastic layer is filled in the internal tooth groove; an external tooth groove is formed between two adjacent external teeth, and the axial composite elastic layer is filled in the external tooth groove.

[0012] In a preferred embodiment, the axial cross-section of the axial composite elastic layer is drum-shaped, and the thickness of the axial middle part of the axial composite elastic layer is greater than the thickness of its axial ends.

[0013] In a preferred embodiment, the inner mating surface of the radial elastic layer is a smooth cylindrical surface, a cylindrical surface with a keyway, or a cylindrical surface with an internal spline.

[0014] In a preferred embodiment, the radial elastic layer and the axial composite elastic layer are rubber elastic layers of different materials, and the metal skeleton is a steel ring skeleton, an aluminum alloy ring skeleton, or a ductile iron ring skeleton.

[0015] A transmission connection device includes a transmission component and a multilayer composite elastomer assembly for a transmission system. The transmission component is connected to the inner mating surface of a radial elastic layer, and the connection component is pressed against the outer bearing surface of an axial composite elastic layer.

[0016] The beneficial effects of this invention are: By sequentially arranging a radial elastic layer, a metal skeleton, and an axial composite elastic layer radially from the inside out, the radial elastic layer is used to connect with the transmission component, the axial composite elastic layer is used to press with the connecting component, and the metal skeleton is located between the two as an intermediate load-bearing structure. During transmission, the radial elastic layer can generate radial compression, tension, or shear deformation between the transmission component and the metal skeleton, and the axial composite elastic layer can generate axial compression or springback deformation between the connecting component and the metal skeleton. When there is angular deflection between the transmission component and the connecting component, the two elastic layers can generate corresponding elastic deformation at different circumferential positions. Thus, elastic deformation areas in the radial, axial, and angular directions are formed simultaneously within the same component, reducing the need for additional elastic compensation components and making the transmission connection structure more concentrated.

[0017] The metal skeleton has internal teeth arranged at intervals along the circumference on its inner circumference surface. The radial elastic layer is integrally formed on the inner circumference surface of the metal skeleton and covers the internal teeth. The metal skeleton has external teeth arranged at intervals along the circumference on its outer circumference surface. The axial composite elastic layer is integrally formed on the outer circumference surface of the metal skeleton and covers the external teeth. The above structure allows the radial elastic layer and the metal skeleton, as well as the axial composite elastic layer and the metal skeleton, to be connected not only by the formed joint surface, but also by the tooth-shaped covering and mechanical interlocking relationship formed by the internal and external teeth. When transmitting torsional loads, bearing radial offset or axial pressing loads, the internal and external teeth can respectively form circumferential limiting and tooth surface force transmission with the corresponding elastic layers, thereby reducing the possibility of circumferential slippage or local separation of the elastic layer relative to the metal skeleton.

[0018] The transmission load is transferred from the transmission component to the radial elastic layer, then from the radial elastic layer to the metal frame, and subsequently from the metal frame to the axial composite elastic layer via the external teeth. Finally, it is transferred to the connecting component via the outer bearing surface of the axial composite elastic layer. The radial elastic layer is mainly located in the inner transmission connection area, and the axial composite elastic layer is mainly located in the outer pressing bearing area. The metal frame is located between the two elastic layers and forms an intermediate support. This structure allows the inner connection load, the metal frame bearing, and the outer pressing load to correspond to different structural parts, avoiding a single elastic layer from bearing all directional deformations and all transmission loads at the same time. This helps to reduce local stress concentration and allows the component to maintain a clearer force relationship under torsion, pressing, and offset conditions.

[0019] The inner mating surface of the radial elastic layer can be set as a smooth cylindrical surface, a cylindrical surface with a keyway, or a cylindrical surface with an internal spline, so as to correspond to different types of transmission component connection structures. The outer circumferential surface of the axial composite elastic layer constitutes the outer bearing surface for pressing with the connecting component, and can form an outer pressing fit with the corresponding connecting component. The metal skeleton can be a steel ring skeleton, an aluminum alloy ring skeleton, or a ductile iron ring skeleton. The radial elastic layer and the axial composite elastic layer can also be rubber elastic layers of different materials, so that the component can be structurally selected according to the installation space, load direction and connection method of different transmission connection devices. This structure is easy to install as an independent elastic connection unit in the transmission connection device and is suitable for flange type, sleeve type or other ring pressing type transmission connection structures. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the multilayer composite elastomer assembly of the present invention; Figure 2 This is a schematic diagram of the metal skeleton of the present invention; Figure 3 This is a schematic diagram of the deformation of the multilayer composite elastomer assembly of the present invention under angular deflection. Figure 4 This is an axial half-sectional view of the multilayer composite elastomer assembly of the present invention.

[0021] In the diagram: 1. Metal frame; 11. Internal teeth; 12. External teeth; 2. Radial elastic layer; 3. Axial composite elastic layer; 4. Transmission component; 5. Connecting component. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This embodiment provides a multilayer composite elastomer assembly for a transmission system, comprising an annular metal skeleton 1, a radial elastic layer 2, and an axial composite elastic layer 3. The metal skeleton 1 has an inner circumferential surface and an outer circumferential surface. The inner circumferential surface of the metal skeleton 1 is provided with internal teeth 11 arranged at intervals along the circumference, and the outer circumferential surface of the metal skeleton 1 is provided with external teeth 12 arranged at intervals along the circumference. The radial elastic layer 2 is integrally formed on the inner circumferential surface of the metal skeleton 1 and covers the internal teeth 11. The inner circumferential surface of the radial elastic layer 2 constitutes an inner mating surface for connecting with a transmission component 4. The axial composite elastic layer 3 is integrally formed on the outer circumferential surface of the metal skeleton 1 and covers the external teeth 12. The outer circumferential surface of the axial composite elastic layer 3 constitutes an outer bearing surface for pressing with a connecting component 5. The radial elastic layer 2, the metal skeleton 1, and the axial composite elastic layer 3 are arranged sequentially from the inside to the outside along the radial direction.

[0024] The metal frame 1 serves as the intermediate load-bearing component of the assembly. The radial elastic layer 2 is located on the inner side of the metal frame 1, and the axial composite elastic layer 3 is located on the outer side of the metal frame 1. These three layers are arranged radially from the inside to the outside. After the assembly is installed into the transmission connection device, the transmission component 4 connects to the inner mating surface of the radial elastic layer 2, and the connecting component 5 presses against the outer bearing surface of the axial composite elastic layer 3. This forms a force transmission path from the transmission component 4, radial elastic layer 2, metal frame 1, axial composite elastic layer 3 to the connecting component 5. The metal frame 1 has a ring-shaped structure, and its inner circumferential surface is provided with circumferentially spaced... The inner teeth 11 are provided, and the outer circumferential surface is provided with outer teeth 12 arranged at intervals along the circumference. The radial elastic layer 2 is integrally formed on the inner circumferential surface of the metal skeleton 1 during molding and covers the inner teeth 11. The axial composite elastic layer 3 is integrally formed on the outer circumferential surface of the metal skeleton 1 during molding and covers the outer teeth 12. Therefore, there is not only a contact interface between the radial elastic layer 2 and the metal skeleton 1, but also a circumferential and radial interlocking relationship formed by the inner teeth 11. There is not only a contact interface between the axial composite elastic layer 3 and the metal skeleton 1, but also a circumferential and radial interlocking relationship formed by the outer teeth 12.

[0025] When the transmission system is working, the rotational motion of the transmission component 4 first acts on the inner mating surface of the radial elastic layer 2. After being driven by the transmission component 4, the radial elastic layer 2 undergoes circumferential shear deformation and transmits the load to the inner teeth 11 and the inner circumferential surface of the metal frame 1 that it covers. Since the inner teeth 11 are arranged at intervals along the circumference of the metal frame 1 and protrude radially inward on the inner circumferential surface of the metal frame 1, the radial elastic layer 2 fills and covers the area around the inner teeth 11, so that the radial elastic layer 2 and the metal frame 1 form a mechanical meshing force transmission relationship under the action of circumferential torsional load. After the torsional load is transmitted to the metal frame 1 through the radial elastic layer 2, it is then transmitted from the metal frame 1 to the outer teeth 12 on its outer circumferential surface and the axial composite force transmission. The elastic layer 3 and the axial composite elastic layer 3 are integrally formed on the outer circumferential surface of the metal frame 1 and cover the outer teeth 12. When the metal frame 1 rotates with the transmission component 4, the outer teeth 12 and the axial composite elastic layer 3 transmit the circumferential load through the covering and fitting relationship. The outer bearing surface of the axial composite elastic layer 3 is pressed against the connecting component 5, thereby transferring the load to the connecting component 5. Since the outer teeth 12 are arranged at intervals along the circumference of the metal frame 1 and protrude radially outward on the outer circumferential surface of the metal frame 1, the axial composite elastic layer 3 forms a covering structure between the outer teeth 12 and on the outside of the outer teeth 12. Under the combined action of circumferential shear and pressing loads, the axial composite elastic layer 3 can generate restricted elastic deformation around the outer teeth 12.

[0026] When there is a radial offset between the transmission component 4 and the connecting component 5, the radial elastic layer 2 is located between the transmission component 4 and the metal frame 1. The radial elastic layer 2 undergoes compression, tension or shear deformation in the radial direction to adapt to the radial position change of the transmission component 4 relative to the metal frame 1. Since the radial elastic layer 2 is set on the inner circumferential surface of the metal frame 1 and is directly connected to the transmission component 4, the radial offset is first borne by the radial elastic layer 2. The inner tooth 11 is covered by the radial elastic layer 2, so that the radial elastic layer 2 still maintains tooth surface engagement with the metal frame 1 during the deformation process.

[0027] When there is an axial relative displacement between the transmission component 4 and the connecting component 5, the connecting component 5 exerts an axial pressing or axial squeezing effect on the outer bearing surface of the axial composite elastic layer 3. The axial composite elastic layer 3 is located on the outside of the metal frame 1, and its axial cross section can be set as a drum shape, with the thickness in the middle of the axial section being greater than the thickness at both ends of the axial section. When the axial load is applied to the outer bearing surface, the middle region of the axial composite elastic layer 3 has a large elastic deformation space, which can generate axial compression and springback deformation between the outer bearing surface and the metal frame 1. The outer teeth 12 are covered by the axial composite elastic layer 3. When the axial composite elastic layer 3 undergoes axial compression deformation, the outer teeth 12 form a circumferential and radial limiting fitting effect on the axial composite elastic layer 3, so that the axial composite elastic layer 3 and the metal frame 1 maintain a matching state.

[0028] When there is an angular deflection between the transmission component 4 and the connecting component 5, the radial elastic layer 2 and the axial composite elastic layer 3 generate uneven elastic deformation on the inner and outer sides of the component, respectively. The radial elastic layer 2, closer to the transmission component 4, forms different degrees of compression or shear deformation at different circumferential positions as the transmission component 4 deflects. The axial composite elastic layer 3, closer to the connecting component 5, forms different degrees of compression deformation at both ends of the axial direction and in different circumferential areas as the pressing state of the connecting component 5 changes. The metal skeleton 1 is located between the two elastic layers and plays the role of intermediate support and load transfer for the radial elastic layer 2 and the axial composite elastic layer 3, so that the inner connecting area and the outer pressing area are arranged separately in the structural position.

[0029] Under conditions where torsional load, radial offset, axial displacement, or angular deflection coexist, the radial elastic layer 2 is mainly located between the transmission component 4 and the metal frame 1, bearing the elastic deformation of the inner connection area. The axial composite elastic layer 3 is mainly located between the metal frame 1 and the connecting component 5, bearing the elastic deformation of the outer pressing area. The metal frame 1 is located between the two, used to receive and transmit loads from the inner and outer sides. Through the above radial layered arrangement, the inner mating surface, the metal bearing part, and the outer bearing surface of the component are located at different radial positions. The connecting load of the transmission component 4 and the pressing load of the connecting component 5 enter the metal frame 1 through different elastic layers, and are then transmitted by the metal frame 1.

[0030] In terms of forming and assembly, the radial elastic layer 2 and the axial composite elastic layer 3 are integrally formed on the inner and outer circumferential surfaces of the metal skeleton 1, respectively. The inner teeth 11 on the inner circumferential surface of the metal skeleton 1 are covered by the radial elastic layer 2, and the outer teeth 12 on the outer circumferential surface are covered by the axial composite elastic layer 3. If the inner teeth 11 and the outer teeth 12 are set as rectangular teeth and extend along the axial direction of the metal skeleton 1, then the radial elastic layer 2 and the axial composite elastic layer 3 continuously cover the tooth shape in the axial direction. When the component transmits circumferential load, the tooth side surface and the corresponding elastic layer form a surface contact type interlocking force transmission. If the inner teeth 11 and the outer teeth 12 are staggered in the circumferential direction of the metal skeleton 1, then the tooth-shaped protrusions on the inner and outer sides of the metal skeleton 1 are distributed in different circumferential positions, and the radial elastic layer 2 and the axial composite elastic layer 3 are formed around the corresponding tooth-shaped area.

[0031] When an inner tooth groove is formed between two adjacent inner teeth 11, the radial elastic layer 2 fills the inner tooth groove. When an outer tooth groove is formed between two adjacent outer teeth 12, the axial composite elastic layer 3 fills the outer tooth groove. Thus, when the component is subjected to alternating torsional load, the radial elastic layer 2 and the inner teeth 11, and the axial composite elastic layer 3 and the outer teeth 12 are all interlocked structurally fitted through tooth groove filling. The load can be transmitted through the tooth surface, tooth groove and covering interface.

[0032] Depending on the connection form of the transmission component 4, the inner mating surface of the radial elastic layer 2 can be set as a smooth cylindrical surface, a cylindrical surface with a keyway, or a cylindrical surface with an internal spline. When the inner mating surface is a smooth cylindrical surface, the transmission component 4 and the radial elastic layer 2 are connected by the cylindrical surface mating. When the inner mating surface has a keyway, the transmission component 4 can achieve circumferential positioning through the structure that mates with the keyway. When the inner mating surface has an internal spline, the transmission component 4 can be connected to the radial elastic layer 2 through the spline mating. All of the above different inner mating surface forms are located on the inner circumferential surface of the radial elastic layer 2, without changing the basic structure of the radial elastic layer 2, the metal skeleton 1, and the axial composite elastic layer 3 arranged sequentially from the inside to the outside along the radial direction.

[0033] The working process of this component is as follows: The multilayer composite elastomer component is installed in the transmission system, so that the transmission component 4 is connected to the inner mating surface of the radial elastic layer 2, and the connecting component 5 is pressed against the outer bearing surface of the axial composite elastic layer 3. After installation, the radial elastic layer 2, the metal skeleton 1, and the axial composite elastic layer 3 are located radially from the inside to the outside between the transmission component 4 and the connecting component 5. After the transmission system is started, the transmission component 4 drives the radial elastic layer 2 to rotate with it. Under the action of the transmission component 4, the radial elastic layer 2 undergoes circumferential shear deformation and transmits the torsional load to the inner circumferential surface of the metal skeleton 1. Since the radial elastic layer 2 is integrally formed in the metal skeleton 1, the radial elastic layer 2 is directly connected to the inner mating surface of the metal skeleton 1. The inner circumferential surface of the metal frame 1 is covered with internal teeth 11. The radial elastic layer 2 forms a toothed engagement with the internal teeth 11 to transmit torsional loads. After the torsional load is transmitted to the metal frame 1, it is transmitted to its outer circumferential surface. The axial composite elastic layer 3 is integrally formed on the outer circumferential surface of the metal frame 1 and covers external teeth 12. The metal frame 1 transmits load through the toothed engagement between the external teeth 12 and the axial composite elastic layer 3. Subsequently, the axial composite elastic layer 3 transmits the load to the connecting component 5 through the press-fit relationship between its outer bearing surface and the connecting component 5. During the transmission process, when a radial relative offset occurs between the transmission component 4 and the connecting component 5... The radial elastic layer 2 undergoes radial compression or shear deformation between the transmission component 4 and the metal frame 1, absorbing this radial positional change. At this time, the radial elastic layer 2 surrounding the inner teeth 11 remains engaged with the metal frame 1. When axial relative displacement occurs between the transmission component 4 and the connecting component 5, the axial composite elastic layer 3 undergoes axial compression or rebound deformation under the pressing action of the connecting component 5. The outer bearing surface of the axial composite elastic layer 3 bears the pressing load of the connecting component 5. The axial composite elastic layer 3 maintains its engagement with the metal frame 1 by covering the outer teeth 12. When angular deflection occurs between the transmission component 4 and the connecting component 5, the radial... The radial elastic layer 2 and the axial composite elastic layer 3 undergo different degrees of elastic deformation at different circumferential positions. The radial elastic layer 2 corresponds to the deflection deformation of the inner transmission component 4, and the axial composite elastic layer 3 corresponds to the pressing deformation of the outer connecting component 5. The metal skeleton 1 is located between the two and transmits the load. Therefore, during continuous operation, the transmission load is transmitted to the connecting component 5 in sequence through the transmission component 4, the radial elastic layer 2, the metal skeleton 1, and the axial composite elastic layer 3. At the same time, the radial elastic layer 2 and the axial composite elastic layer 3 undergo elastic deformation at different radial positions to adapt to the radial offset, axial displacement, and angular deflection in the transmission system.

Claims

1. A multilayer composite elastomer assembly for a transmission system, comprising an annular metal skeleton (1), a radial elastic layer (2), and an axial composite elastic layer (3), characterized in that, The metal frame (1) has an inner circumferential surface and an outer circumferential surface. The inner circumferential surface of the metal frame (1) is provided with internal teeth (11) arranged at intervals along the circumferential direction, and the outer circumferential surface of the metal frame (1) is provided with external teeth (12) arranged at intervals along the circumferential direction. The radial elastic layer (2) is integrally formed on the inner circumferential surface of the metal skeleton (1) and covers the inner teeth (11). The inner circumferential surface of the radial elastic layer (2) forms an inner mating surface for connection with the transmission component (4). The axial composite elastic layer (3) is integrally formed on the outer circumferential surface of the metal skeleton (1) and covers the outer teeth (12). The outer circumferential surface of the axial composite elastic layer (3) constitutes the outer bearing surface for pressing with the connecting component (5). The radial elastic layer (2), the metal skeleton (1), and the axial composite elastic layer (3) are arranged sequentially from the inside to the outside along the radial direction.

2. A multilayer composite elastomer assembly for a transmission system according to claim 1, characterized in that, The inner teeth (11) are tooth-shaped protrusions that bulge radially inward on the inner circumferential surface of the metal skeleton (1), and a plurality of the inner teeth (11) are evenly distributed along the circumference of the metal skeleton (1).

3. A multilayer composite elastomer assembly for a transmission system according to claim 2, characterized in that, The external teeth (12) are tooth-shaped protrusions that bulge outward radially on the outer circumferential surface of the metal frame (1), and a plurality of the external teeth (12) are evenly distributed along the circumference of the metal frame (1).

4. A multilayer composite elastomer assembly for a transmission system according to claim 1, characterized in that, Both the inner teeth (11) and the outer teeth (12) are rectangular teeth, and the inner teeth (11) and the outer teeth (12) extend along the axial direction of the metal skeleton (1).

5. A multilayer composite elastomer assembly for a transmission system according to claim 4, characterized in that, The inner teeth (11) and outer teeth (12) are arranged in a staggered manner in the circumferential direction of the metal frame (1).

6. A multilayer composite elastomer assembly for a transmission system according to claim 4, characterized in that, An internal tooth groove is formed between two adjacent internal teeth (11), and the radial elastic layer (2) is filled in the internal tooth groove; an external tooth groove is formed between two adjacent external teeth (12), and the axial composite elastic layer (3) is filled in the external tooth groove.

7. A multilayer composite elastomer assembly for a transmission system according to claim 1, characterized in that, The axial cross section of the axial composite elastic layer (3) is drum-shaped, and the thickness of the axial middle part of the axial composite elastic layer (3) is greater than the thickness of its axial ends.

8. A multilayer composite elastomer assembly for a transmission system according to claim 1, characterized in that, The inner mating surface of the radial elastic layer (2) is a smooth cylindrical surface, a cylindrical surface with a keyway, or a cylindrical surface with an internal spline.

9. A multilayer composite elastomer assembly for a transmission system according to claim 8, characterized in that, The radial elastic layer (2) and the axial composite elastic layer (3) are rubber elastic layers of different materials, and the metal skeleton (1) is a steel ring skeleton, an aluminum alloy ring skeleton or a ductile iron ring skeleton.

10. A transmission connection device, characterized in that, The assembly includes a transmission component (4) and a multilayer composite elastomer assembly for a transmission system according to any one of claims 1 to 9, wherein the transmission component (4) is connected to the inner mating surface of the radial elastic layer (2) and the connecting component (5) is pressed against the outer bearing surface of the axial composite elastic layer (3).

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