Torque-limiting shock absorber with high integration level

Abstract

The invention provides a torsion-limiting shock absorber with high integration level, and relates to the technical field of torsion-limiting shock absorbers, the torsion-limiting shock absorber comprises a pair of inertia rings which are symmetrically connected to form a closed inner cavity, and an annular accommodating groove is formed in the middle of the butt joint surface of the inertia rings. A disc spring, a flexible disc and a driven assembly are sequentially arranged in the groove; the disc spring provides axial pressing force for the flexible disc, and an annular connecting hole connected with an engine is formed in the middle of the flexible disc. The driven assembly comprises a driven disc and friction plates symmetrically fixed to the two sides of the driven disc, and the friction plates abut against the flexible disc to form a friction pair. The inner side of the driven disc is connected with a torsion damping mechanism, and the center is provided with an output shaft hole. According to the invention, all core functional components are integrated and packaged in a single cavity formed by a pair of inertia rings, a plurality of traditional discrete parts are replaced, and the high structure simplification is realized. The number of parts and assembly procedures are greatly reduced, cost and complexity are reduced, structural rigidity and reliability are improved, and stability and consistency of torsion limiting performance and vibration reduction performance are guaranteed.

Description

Technical Field

[0001] This invention mainly relates to the field of torsional damper technology, specifically to a highly integrated torsional damper. Background Technology

[0002] Torque-limiting dampers are key components in modern automotive transmission systems. Their main function is to effectively isolate the torsional vibrations generated during engine operation and to limit torque through slippage when the transmission system is overloaded, thereby protecting downstream components such as the gearbox. Traditional torsion-limiting dampers typically consist of a primary mass (connected to the engine), a secondary mass (connected to the gearbox), and a damping and torsion-limiting assembly positioned between the two.

[0003] To integrate vibration damping and torsion limiting functions, conventional structures often have complex internal configurations. A typical structure includes: a front cover serving as the outer shell, a pressure plate for clamping the friction plates, wave springs to ensure uniform contact between the friction plates, an independent driven disc, a disc spring providing axial clamping force, friction plates transmitting torque, a helical spring assembly for torsional damping, and a hub for output, among other components. These components require step-by-step assembly using riveting, welding, or bolting, resulting in numerous production processes, a long assembly time, and high manufacturing costs. Furthermore, the presence of multiple components increases the risk of connection failures, potentially affecting the overall structural reliability and lifespan. Summary of the Invention

[0004] 1. The technical problem that the invention aims to solve: This invention provides a highly integrated torsional damper to solve the technical problems existing in the background art.

[0005] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this invention is: a highly integrated torsional damping device, comprising... A pair of symmetrically connected inertia rings to form a closed inner cavity, wherein the mating surfaces of the inertia rings are provided with an annular receiving groove in the middle. A disc spring, a flexible disc, and a driven assembly are sequentially arranged within the receiving slot; The disc spring provides axial clamping force to the flexible disk; the flexible disk has an annular connecting hole in the middle for connecting the power input end; The driven component includes a driven disk and friction plates symmetrically fixed on both sides of the driven disk. The friction plates abut against the flexible disk to form a friction pair. In addition, a torsional damping mechanism is connected to the inner side of the driven disc, and the torsional damping mechanism has an output shaft hole at its center for connecting the power output end. The damper mainly consists of a pair of inertia rings symmetrically fastened together by connectors, forming the main frame. The two inertia rings define an annular receiving groove in the middle of the mating surface. When the two are closed, the receiving groove forms a complete and sealed annular working cavity.

[0006] All key functional components are integrated within this working cavity. Specifically, the disc spring is first placed at the bottom of the receiving slot. The flexible disc is mounted on the disc spring and bears the axial preload provided by the disc spring, thereby positioning it axially relative to the moment of inertia ring. The flexible disc has multiple circumferentially oriented connecting holes in its center for connection to the engine crankshaft or flywheel end to receive power input.

[0007] The driven assembly is directly housed in the receiving groove and located outside the flexible disk. This assembly includes an annular driven disk and friction material sheets symmetrically fixed to the annular surfaces on both sides of the driven disk by, for example, riveting. Under the clamping force of the disc spring, the friction sheets on both sides are tightly fitted with the corresponding surfaces of the flexible disk, forming the main friction pair for transmitting torque. Finally, the driven disk transmits stable rotational force outward through a torsional damping mechanism.

[0008] Under normal operating conditions, the engine's power is input through the flexible disc. Utilizing the static friction between the friction pairs, torque is transmitted to the driven disc and its cooperating torsional damping mechanism, thus enabling stable power delivery.

[0009] This application encapsulates all core components, including the disc spring, flexible disc, and driven assembly with integrated friction plates, within a single cavity consisting of a pair of inertia rings. This design eliminates the need for multiple separate parts such as the front cover, pressure plate, and wave spring in traditional structures, achieving a high degree of structural simplification. It significantly reduces the number of parts and assembly steps, lowering manufacturing costs and complexity; it also reduces potential connection failure points, improving overall structural rigidity and reliability; and the compact encapsulation helps maintain the stability of the friction pair's operating state, ensuring consistency and durability in torque limiting and vibration damping performance.

[0010] Furthermore, the driven disc and the friction plate are fixedly connected by one of the following methods: riveting, protrusion connection, bonding, or bolt connection.

[0011] Furthermore, the driven disk has a plurality of positioning protrusions arranged in a ring on the side facing the friction plate, and the friction plate has positioning holes corresponding to the number and position of the positioning protrusions. The positioning protrusions and the positioning holes cooperate with each other to achieve radial positioning of the friction plate on the driven disk.

[0012] Furthermore, the pair of inertia rings are fixedly connected by a connector; on the mating surface of each inertia ring, a plurality of connecting holes are spaced apart along its circumference, and the connector is disposed in the connecting holes.

[0013] Furthermore, the torsional vibration damping mechanism includes: The hub has the output shaft hole at its center; The vibration damping disc is connected to the driven disc; Multiple damping springs are circumferentially disposed between the damping disc and the disc hub; and, Damping plates are symmetrically arranged on both sides of the hub. One damping plate is pressed against by a pre-tensioned disc spring, and the other damping plate is pressed against by a flexible disc.

[0014] Furthermore, the flexible disk has a plurality of axially extending protrusions evenly distributed along the circumferential direction on its outer circumference; the inner wall of the inertia ring receiving groove is provided with a corresponding groove matching the number and position of the protrusions; the protrusions are slidably received in the groove and maintain a clearance fit with the groove in the circumferential direction.

[0015] The friction plates are further symmetrically arranged, with the friction surface of one friction plate abutting the inner wall of the receiving groove of the inertia ring, and the friction surface of the other friction plate abutting the flexible disk.

[0016] Furthermore, a positioning structure is provided between the mating surfaces of the pair of inertia rings; the positioning structure includes a positioning boss disposed on the mating surface of one of the inertia rings, and a positioning groove disposed on the mating surface of the other inertia ring and adapted to the positioning boss; the positioning boss and the positioning groove are engaged with each other when the pair of inertia rings are connected.

[0017] Furthermore, the pair of inertia rings are general-purpose components with symmetrical main structure; the positioning boss and the positioning groove are complementary positioning features set on the mating surfaces of the two general-purpose components.

[0018] Furthermore, the bottom of the receiving groove is provided with an annular positioning part for accommodating the disc spring; the disc spring is in a pre-compressed state in the receiving groove, with one end abutting against the annular positioning part, and the other end transmitting the axial clamping force to the flexible disc.

[0019] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this invention has the following advantages: This invention features a rational design, encapsulating core components such as the disc spring, flexible disc, and driven disc with integrated friction plates within a sealed cavity formed by a pair of inertia rings. This replaces traditional separate parts such as the front cover and pressure plate, achieving a high degree of integration. This significantly reduces the number of parts and assembly steps, lowering manufacturing costs and complexity. Simultaneously, the reduced number of connection points improves the overall structural reliability and durability.

[0020] The integrated design ensures a stable working environment for the friction pairs, resulting in greater consistency between torque limiting and vibration damping performance. Specific features such as protrusion and groove positioning and stop connections further improve assembly accuracy, efficiency, and connection rigidity. The symmetrical and universal inertia ring design also helps reduce mold costs and production management complexity, comprehensively enhancing the product's manufacturability and economy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the inertia ring structure in another embodiment of the present invention; Figure 5 This is a partial structural schematic diagram of the present invention.

[0022] Figure label: 1. Inertia ring; 2. Receiving groove; 3. Disc spring; 4. Flexible disc; 41. Protrusion; 42. Groove; 5. Connecting hole; 6. Driven disc; 61. Positioning protrusion; 7. Friction plate; 71. Positioning hole; 8. Torsional damping mechanism; 81. Disc hub; 82. Damping disc; 83. Damping spring; 84. Damping plate; 85. Preloaded disc spring; 9. Output shaft hole; 11. Positioning boss; 12. Positioning groove. Detailed Implementation

[0023] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] It should be noted that structures not described in this invention do not involve the design points and improvement directions of this invention, and can all be achieved using existing technologies known to those skilled in the art.

[0028] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0029] See attached document Figure 1-5 A highly integrated torsional damping damper, including A pair of symmetrically connected inertia rings 1 to form a closed inner cavity, wherein the mating surface of the inertia rings 1 is provided with an annular receiving groove 2 in the middle. The disc spring 3, the flexible disk 4, and the driven assembly are sequentially arranged in the receiving groove 2; The disc spring 3 provides axial clamping force to the flexible disk 4; the flexible disk 4 has an annular connecting hole 5 in the middle for connecting the power input end; The driven component includes a driven disk 6 and friction plates 7 symmetrically fixed on both sides of the driven disk 6. The friction plates 7 abut against the flexible disk 4 to form a friction pair. In addition, a torsional damping mechanism 8 is connected to the inner side of the driven disk 6, and the torsional damping mechanism 8 has an output shaft hole 9 at its center for connecting the power output end. In this embodiment, the damper mainly consists of a pair of inertia rings 1 symmetrically fastened together by connectors to form the main frame. The two inertia rings 1 define an annular receiving groove 2 in the middle of the mating surface. When the two are closed, the receiving groove 2 forms a complete and sealed annular working cavity.

[0030] All key functional components are integrated within this working cavity. Specifically, the disc spring 3 is first placed at the bottom of the receiving groove 2. The flexible disc 4 is mounted on the disc spring 3 and bears the axial preload provided by the disc spring 3, thereby positioning it axially relative to the inertia ring 1. The flexible disc 4 has multiple connecting holes circumferentially opened in the middle for connecting to the engine crankshaft or flywheel end to receive power input.

[0031] The driven assembly is directly housed in the receiving groove 2 and located outside the flexible disk 4. This assembly includes an annular driven disk 6 and friction material sheets symmetrically fixed to the annular surfaces on both sides of the driven disk 6 by means of, for example, riveting. Under the clamping force of the disc spring 3, the friction sheets 7 on both sides are tightly fitted with the corresponding surfaces of the flexible disk 4, forming the main friction pair for transmitting torque. Finally, the driven disk 6 transmits a stable rotational force outward through the torsional damping mechanism 8.

[0032] Under normal operating conditions, the engine's power is input through the flexible disc 4. With the help of the static friction between the friction pairs, the torque is transmitted to the driven disc 6 and the torsional damping mechanism 8 that cooperates with it, thereby performing stable transmission operations.

[0033] This embodiment employs an innovative integrated design, encapsulating core components such as the disc spring 3, flexible disk 4, and driven assembly with integrated friction plate 7 within a single cavity composed of a pair of inertia rings 1. This design eliminates the need for multiple separate parts such as the independent front cover, pressure plate, and wave spring in traditional structures, achieving a high degree of structural simplification. It significantly reduces the number of parts and assembly steps, lowering manufacturing costs and complexity; it reduces potential connection failure points, improving overall structural rigidity and reliability; and the compact encapsulation helps maintain the stability of the friction pair's working state, ensuring consistency and durability in torque limiting and vibration damping performance.

[0034] The driven disk 6 and the friction plates 7 are fixedly connected by one of the following methods: riveting, protrusion connection, bonding, or bolt connection. In this embodiment, the fixed connection between the driven disk 6 and the friction plates 7 symmetrically arranged on both sides of it in the driven assembly is the key to achieving a stable friction pair and reliable torque transmission. In this embodiment, this fixed connection can be achieved using a variety of mature processes, thus providing flexible choices for manufacturing to adapt to different cost, efficiency, or reliability requirements.

[0035] Specifically, any of the following can be selected for the fixed connection method: Riveting: Riveting holes are pre-set on the driven disc 6. After the friction plate 7 is aligned and placed, the connection part is plastically deformed by riveting or using processes such as spin riveting or press riveting, thereby firmly joining the two together. This method of connection is reliable and the technology is mature.

[0036] Bump connection: Several protrusions 41 are machined on the surface of the driven disk 6. By hot pressing or pressure embedding, the friction plate 7 material partially wraps around or tightly fastens the protrusions to form a mechanical interlock. This method requires no additional connectors and has a high degree of integration.

[0037] Bonding: A high-temperature resistant, oil-resistant structural adhesive with high shear strength is applied to the interface between the driven disk 6 and the friction plate 7, and a strong bond is achieved through pressure curing. This method results in uniform stress distribution, which helps ensure the flatness of the friction plate 7.

[0038] Bolted connection: Multiple fastening bolts are passed through the corresponding through holes on the driven plate 6 and the friction plate 7, and tightened with nuts or by directly tapping threads on the driven plate 6. This method facilitates maintenance and replacement of the friction plate 7 after wear.

[0039] Regardless of the connection method used, their common purpose is to ensure that the driven disc 6 and the friction plate 7 can operate reliably as a whole when subjected to working torque, vibration and thermal load, and to prevent unexpected relative displacement or separation between the two.

[0040] The driven disk 6 has a plurality of circumferentially distributed positioning protrusions 61 on its side facing the friction plate 7. The friction plate 7 has positioning holes 71 corresponding to the number and position of the positioning protrusions 61. The positioning protrusions 61 and the positioning holes 71 cooperate with each other to achieve radial positioning of the friction plate 7 on the driven disk 6. In this embodiment, to achieve accurate and reliable positioning of the friction plate 7 on the driven disk 6 and to facilitate assembly operations, this embodiment provides an optimized connection structure. Specifically, a plurality of positioning protrusions 61 are uniformly machined along the circumference of the side of the driven disk 6 facing the friction plate 7. These positioning protrusions 61 can be cylindrical, square, or other regular boss structures. Correspondingly, a set of positioning holes 71 that precisely match the number, circumferential position, and shape and size of the positioning protrusions 61 are provided on each of the friction plates 7.

[0041] During assembly, simply align the positioning hole 71 on the friction plate 7 with the positioning protrusion 61 on the driven disk 6 to achieve rapid and accurate pre-positioning of the friction plate 7 on the driven disk 6. The cooperation between the positioning protrusion 61 and the positioning hole 71 mainly serves the functions of radial positioning and limiting, preventing the friction plate 7 from radially offset or circumferentially rotating relative to the driven disk 6 during subsequent use or fixing. This device greatly improves assembly efficiency and reduces the risk of assembly defects caused by misalignment.

[0042] The pair of inertia rings 1 are fixedly connected by a connector; on the mating surface of each inertia ring 1, a plurality of connecting holes are spaced apart along its circumference, and the connector is disposed in the connecting holes. In this embodiment, the connector can specifically be a rivet or a fastening bolt. When a rivet is used, the rivet shank is deformed by the riveting process, thereby permanently fixing the two inertia rings 1 together, resulting in high connection strength and non-removability. When a fastening bolt is used, it can be used with a nut or with a threaded hole on the inertia ring 1 to form a detachable connection, which facilitates the maintenance of the shock absorber or the repair of internal components under specific conditions.

[0043] The torsional vibration damping mechanism 8 includes: The hub 81 has the output shaft hole 9 at its center; The vibration damping disc 82 is connected to the driven disc 6; Multiple damping springs 83 are circumferentially disposed between the damping disc 82 and the disc hub 81; and, Damping plates 84 are symmetrically arranged on both sides of the hub 81. One damping plate 84 is pressed against by a pre-tensioned disc spring 85, and the other damping plate 84 is pressed against by a flexible disc 4.

[0044] In this embodiment, the torsional damping mechanism 8 is the core component for achieving vibration isolation and elastic transmission. It mainly consists of a hub 81, a damping disc 82, multiple damping springs 83, and damping plates 84.

[0045] The hub 81 serves as the power output end, and a splined hole or keyway is machined in its center to form the output shaft hole 9, which is used for rigid connection with the gearbox input shaft.

[0046] The damping disc 82 is an annular disc, which is fixedly connected to the driven disc 6 via a connector, thus allowing it to rotate together with the driven disc 6. In a preferred embodiment, the damping disc 82 and the driven disc 6 can be connected by, for example, a limiting pin. This limiting pin passes through corresponding pin holes on the damping disc 82 and the driven disc 6, achieving synchronous rotation of both while limiting the maximum relative displacement between them under abnormal conditions.

[0047] Multiple damping springs 83 are evenly arranged circumferentially within the windows of the damping disc 82, the hub 81, and the driven disc 6. Specifically, spring windows are provided on the damping disc 82, the hub 81, and the driven disc 6 to accommodate and position these damping springs 83. The damping springs 83 can be helical springs or composite springs incorporating rubber elements. Their function is to provide torsional stiffness, elastically transmit torque, and absorb vibration energy. Dampers can also be added inside the springs.

[0048] The damping plates 84 are usually arranged in pairs symmetrically. When the damping disc 82 and the disc hub 81 undergo relative angular displacement due to vibration, the damping plates 84 generate sliding friction, converting the mechanical energy of vibration into heat energy for consumption, thereby rapidly attenuating the torsional oscillation of the system.

[0049] The flexible disk 4 has a plurality of axially extending protrusions 41 evenly distributed along the circumference of its outer circumference; the inner wall of the receiving groove 2 of the inertia ring 1 is provided with corresponding grooves 42 that match the number and position of the protrusions 41; the protrusions 41 are slidably received in the grooves 42 and maintain a clearance fit with the grooves 42 in the circumferential direction.

[0050] The friction plates 7 are symmetrically arranged, with one friction plate 7 having its friction surface abutting against the inner wall of the receiving groove 2 of the inertia ring 1, and the other friction plate 7 having its friction surface abutting against the flexible disk 4. In this embodiment, the flexible disk 4 preferably has three axially extending protrusions 41 uniformly machined circumferentially on its outer circumference. Correspondingly, the inner wall of the receiving groove 2 of the inertia ring 1 has three grooves 42 that precisely correspond in shape and position to the protrusions 41. During assembly, the protrusions 41 of the flexible disk 4 are aligned and placed into the grooves 42 of the inertia ring 1, enabling rapid pre-assembly.

[0051] Meanwhile, the friction plates 7 on both sides of the driven disk 6 abut against different components: one side of one friction plate 7 abuts against the inner wall of the inertia ring 1, and the other side abuts against the driven disk 6; one side of the other friction plate 7 abuts against the flexible disk 4, and the other side also abuts against the driven disk 6. This design forms a parallel torque input path.

[0052] In this structure, the design of the protrusion 41 and the groove 42 needs to achieve a dual functional balance: first, to meet the rigid requirements of assembly and transportation, and second, to meet the flexible requirements of dynamic transmission during operation.

[0053] Its working principle and beneficial effects are as follows: Firstly, when the shock absorber is assembled, transported, and stored as an independent module, the cooperation between the protrusion 41 and the groove 42 provides a reliable axial anti-fall limit for the flexible disc 4, effectively preventing the internal parts from scattering under the preload of the disc spring 3, and ensuring the structural integrity of the module. Simultaneously, this cooperation provides precise circumferential angular pre-positioning for the flexible disc 4, so that when installing the entire shock absorber assembly onto the engine flywheel, the operator does not need to adjust the angle of the flexible disc 4, but only needs to align it with the outer casing. This greatly simplifies the overall vehicle assembly process and improves assembly efficiency and consistency, which is its core technological value.

[0054] Secondly, during normal operation of the shock absorber, the engine torque is transmitted to the driven plate 6 through two paths: one path involves the flexible plate 4 directly pressing against its corresponding friction plate 7; the other path may involve a potential path through the contact between the protrusion 41 and the groove 42, transmitting the torque via the inertia ring 1 to the other friction plate 7 it abuts against. To ensure smooth and controllable torque transmission, and to ensure that it is entirely dominated by the static friction force of the friction pair, the protrusion 41 and the groove 42 are designed with a necessary fit clearance in the circumferential direction. This clearance ensures that, in the working state, the flexible plate 4 can generate a slight float to adapt to the pressure of the disc spring 3, and that its protrusion 41 and groove 42 do not have direct rigid contact or force interference. All working torque is ultimately transmitted synchronously and uniformly to the driven plate 6 by the friction force between the two friction plates 7 and their corresponding contact surfaces. Therefore, this positioning structure achieves excellent assembly convenience while completely avoiding interference with or weakening the uniformity of the friction pair pressing, the accuracy of the torque limiting function, and the effectiveness of torsional vibration damping, thus achieving a perfect unity of static positioning stiffness and dynamic working flexibility.

[0055] The mating surfaces of the pair of inertia rings 1 are provided with a mutually cooperating positioning structure. The positioning structure includes a positioning boss 11 disposed on the mating surface of one inertia ring 1, and a positioning groove 12 disposed on the mating surface of the other inertia ring 1, adapted to the positioning boss 11. The positioning boss 11 and the positioning groove 12 engage with each other when the pair of inertia rings 1 are connected. In this embodiment, to achieve precise alignment of the two inertia rings 1 during connection, improve connection rigidity, and optimize the manufacturing process, a complementary positioning structure is provided between their mating surfaces. Specifically, at least one continuous or discontinuous positioning boss 11 is machined on the mating surface of the first inertia ring 1; a positioning groove 12 with a shape and size matching the positioning boss 11 is machined on the mating surface of the second inertia ring 1. When the two inertia rings 1 are mated and tightened, the positioning boss 11 is precisely embedded in the positioning groove 12, forming a tight fit.

[0056] At the structural level, this interlocking structure first achieves automatic and precise alignment of the two inertia rings 1 in the radial and circumferential directions, ensuring the concentricity and shape accuracy of the internal accommodating cavity formed by the two rings, thus providing a foundation for the accurate installation and stable operation of the internal functional components. Secondly, when subjected to working torque, the circumferential shear force acting on the mating surface is mainly borne by the mutual abutment of the sidewalls of the boss and the sidewalls of the groove. This greatly reduces the shear stress borne by the connecting rivets or bolts, allowing the connector to primarily bear the axial clamping function, thereby significantly improving the fatigue resistance reliability of the connection and the torsional stiffness of the overall structure.

[0057] The pair of inertia rings 1 are general-purpose components with symmetrical main structure; the positioning boss 11 and the positioning groove 12 are complementary positioning features set on the mating surfaces of the two general-purpose components.

[0058] In this embodiment, please refer to Figure 4 The two inertia rings 1 can adopt a symmetrical and universal design, meaning that their main structures, connecting holes, and accommodating grooves 2 are completely identical. However, one of them has a positioning boss 11 machined on its mating surface, while the other has a positioning groove 12 machined at the corresponding position. This design makes the two rings highly similar in manufacturing process and potentially interchangeable, which helps to reduce mold complexity and production management costs. The positioning boss 11 and groove fitting and positioning structure described in this embodiment brings significant improvements to the overall performance and manufacturing of the torsion damper in many aspects.

[0059] The bottom of the receiving groove 2 is provided with an annular positioning part for accommodating the disc spring 3. The disc spring 3 is in a pre-compressed state within the receiving groove 2, with one end abutting against the annular positioning part and the other end transmitting the axial clamping force to the flexible disk 4. In this embodiment, a raised annular rib or a recessed annular groove is integrally machined or provided at the bottom of the receiving groove 2 of the inertia ring 1 to form the annular positioning part. The main function of this positioning part is to accurately accommodate and limit the radial position of the disc spring 3, preventing it from shifting or tilting due to vibration during operation. By accurately positioning the disc spring 3 radially through the annular positioning part, it is ensured that the disc spring 3 is subjected to uniform force, avoiding elasticity loss or abnormal wear caused by uneven loading, thereby making the clamping force output by the disc spring 3 highly consistent. This directly ensures that the torque limiting threshold of each vibration damper product is accurately controllable with small dispersion, improving the reliability of product performance.

[0060] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A highly integrated torsional damping damper, characterized in that: include A pair of symmetrically connected inertia rings (1) to form a closed inner cavity, wherein an annular receiving groove (2) is provided in the middle of the mating surface of the inertia rings (1). The disc spring (3), flexible disk (4), and driven assembly are sequentially arranged in the receiving groove (2); The disc spring (3) provides axial clamping force to the flexible disk (4); the flexible disk (4) is provided with an annular connecting hole (5) for connecting the power input end in the middle. The driven component includes a driven disk (6) and friction plates (7) symmetrically fixed on both sides of the driven disk (6). The friction plates (7) abut against the flexible disk (4) to form a friction pair. In addition, a torsional damping mechanism (8) is connected to the inner side of the driven disk (6), and the torsional damping mechanism (8) has an output shaft hole (9) at its center for connecting the power output end.

2. The highly integrated torsional damper according to claim 1, characterized in that: The driven disc (6) and the friction plate (7) are fixedly connected by one of the following methods: riveting, protrusion connection, bonding or bolt connection.

3. The highly integrated torsional damper according to claim 1, characterized in that: The driven disk (6) has a plurality of positioning protrusions (61) arranged in a ring on the side facing the friction plate (7). The friction plate (7) has positioning holes (71) corresponding to the number and position of the positioning protrusions (61). The positioning protrusions (61) and the positioning holes (71) cooperate with each other to achieve radial positioning of the friction plate (7) on the driven disk (6).

4. The highly integrated torsional damper according to claim 1, characterized in that: The pair of inertia rings (1) are fixedly connected by a connector; on the mating surface of each inertia ring (1), a plurality of connecting holes are spaced apart along its circumference, and the connector is provided in the connecting holes.

5. The highly integrated torsional damper according to claim 1, characterized in that: The torsional vibration damping mechanism (8) includes: The hub (81) has the output shaft hole (9) at its center. The damping disc (82) is connected to the driven disc (6); Multiple damping springs (83) are circumferentially disposed within the damping disc (82), the hub (81), and the driven disc (6); and, Damping plates (84) are symmetrically arranged on both sides of the hub (81). One damping plate (84) is pressed against by a pre-tightened disc spring (85), and the other damping plate (84) is pressed against by a flexible disc (4).

6. The highly integrated torsional damper according to claim 1, characterized in that: The flexible disk (4) has a plurality of axially extending protrusions (41) evenly distributed along the circumference of the outer circumference; the inner wall of the receiving groove (2) of the inertia ring (1) is provided with a groove (42) that matches the number and position of the protrusions (41); the protrusions (41) are slidably received in the groove (42) and maintain a clearance fit with the groove (42) in the circumferential direction.

7. A highly integrated torsional damping damper according to claim 6, characterized in that: The friction plates (7) are symmetrically arranged, with the friction surface of one friction plate (7) abutting the inner wall of the receiving groove (2) of the inertia ring (1), and the friction surface of the other friction plate (7) abutting the flexible disk (4).

8. The highly integrated torsional damper according to claim 1, characterized in that: The mating surfaces of the pair of inertia rings (1) are provided with a positioning structure that cooperates with each other; the positioning structure includes a positioning boss (11) provided on the mating surface of one of the inertia rings (1) and a positioning groove (12) provided on the mating surface of the other inertia ring (1) and adapted to the positioning boss (11); the positioning boss (11) and the positioning groove (12) are engaged with each other when the pair of inertia rings (1) are connected.

9. A highly integrated torsional damping damper according to claim 8, characterized in that: The pair of inertia rings (1) are general-purpose components with symmetrical main structure; the positioning boss (11) and the positioning groove (12) are complementary positioning features set on the mating surfaces of the two general-purpose components.

10. A highly integrated torsional damping damper according to claim 1, characterized in that, The bottom of the receiving groove (2) is provided with an annular positioning part for accommodating the disc spring (3); the disc spring (3) is in a pre-compressed state in the receiving groove (2), with one end abutting against the annular positioning part and the other end transmitting the axial clamping force to the flexible disk (4).

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