Torque limiter assembly and processing and assembly method thereof

Abstract

The present invention discloses a torque limiter assembly, including a torque transmission component, a vibration reduction system and a connecting piece; the torque transmission component includes a circular flywheel disc, an annular disc spring, an annular pressure plate and an annular friction plate; the vibration reduction system includes a vibration reduction disc, a circular driven disc and a vibration reduction structure; one side of the flywheel disc has a gradient concave installation space, and the installation space is composed of a gradually decreasing annular first step, an annular second step and a bottom concave surface; the annular disc spring, the annular pressure plate and the annular friction plate are sequentially superimposed on the second step from top to bottom, and a plurality of L-shaped tongues for pressing the disc spring are arranged on the first step; the annular friction plate is connected to the circular driven disc of the vibration reduction system through a connecting piece. The present invention also relates to a processing and assembly method of a torque limiter assembly. The torque limiter assembly of the present invention has a simple structure, omits a single-mass flywheel and a cover plate, has a compact and reasonable overall layout, has fewer parts, reduces costs, and is convenient for installation, disassembly and maintenance of the vibration reduction system.

Description

Technical Field

[0001] The invention belongs to the technical field of torque limiters, and in particular relates to a torque limiter assembly for a power device and a processing and assembling method thereof. Background Art

[0002] The patent application is named "Torque limiter, vibration damping device with torque limiter and power transmission device", and the patent with publication number CN112594329A discloses a torque limiter, which requires a single-mass flywheel to connect the torque limiter to the power device, and the vibration damping system is installed on the single-mass flywheel. The entire torque limiter assembly has a complex structure, many parts, large axial dimensions, and a large weight of the entire structure, which is not conducive to the spatial layout of the entire vehicle.

[0003] like Figure 1 The figure shows the three-dimensional diagram of the existing torque limiter assembly of new energy vehicles. Figure 2 for Figure 1 The cross-sectional view at AA in the middle. Figure 1 Figure 2 In the figure, 01 is a cover plate, 02 is a vibration reduction system, 03 is a disc spring, 04 is a pressure plate, 05 is an annular friction plate, 06 is a flywheel disc, and 07 is a single-mass flywheel. The existing torque limiter assembly includes a cover plate 01, a vibration reduction system 02, a disc spring 03, a pressure plate 04, an annular friction plate 05, a flywheel disc 06, and a single-mass flywheel 07; Figure 1 , 2 As shown, the single-mass flywheel 07 has a large axial dimension, one side of which is connected to the cover plate 01 and the flywheel disc 06 by multiple bolts, and the other side is connected to the power unit by bolts; the cover plate 01 presses the disc spring 03, the disc spring 03 presses on the pressure plate 04, the pressure plate 04 presses the annular friction plate 05, the flywheel disc 06 and the cover plate 01 are riveted, the flywheel disc 06 and the cover plate 01 are connected to the single-mass flywheel 07 by bolts, and the annular friction plate 05 is directly connected to the vibration reduction system 02, so that the flywheel disc 06, the cover plate 01, the disc spring 03, the pressure plate 04, the annular friction plate 05 and the vibration reduction system 02 form an integral and non-detachable body.

[0004] The existing torque limiter is an integral structure, which is inconvenient to disassemble. It is an integrated structure when it leaves the factory and is used, and is directly installed on the crankshaft of the power unit. There is a vibration reduction system inside the limiter assembly, and the vibration reduction system includes a spring assembly. As the years increase, the spring is prone to fatigue and fracture. Since the torque limiter assembly is an integral structure, the vibration reduction system is restricted by the riveting of the flywheel disc and the cover plate. The spring assembly cannot be disassembled. When replacing, the torque limiter assembly needs to be replaced as a whole, which increases the cost of use. The existing torque limiter assembly has a large number of parts, and during production and installation, multiple equipment needs to be coordinated, which increases the installation cost.

[0005] In summary, the existing torque limiter assembly has the problems of large number of parts, large size and weight, complex structure, inconvenient installation and disassembly, and high maintenance, use and installation costs. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a torque limiter assembly and an assembly method thereof with a simple structure, fewer parts, and convenient installation, disassembly and maintenance of a vibration reduction system, in view of the deficiencies existing in the existing torque limiter assembly.

[0007] To achieve the above object, the technical solution of the present invention is as follows:

[0008] A torque limiter assembly comprises a torque transmission component, a vibration reduction system and a connector connecting the torque transmission component and the vibration reduction system; the torque transmission component comprises a circular flywheel disc, an annular disc spring, an annular pressure plate and an annular friction plate; the vibration reduction system comprises a vibration reduction plate, a circular driven plate and a vibration reduction structure, wherein the vibration reduction structure is arranged between the vibration reduction plate and the circular driven plate; one side of the flywheel disc is connected to a power device, and the other side is an installation space with a gradient concave, wherein the installation space is composed of an annular first step, an annular second step and a bottom concave surface which decrease step by step; the annular disc spring, the annular pressure plate and the annular friction plate are sequentially superimposed on the second step from top to bottom, and a plurality of L-shaped tongues for pressing the disc spring are arranged on the first step; the annular friction plate is connected to the circular driven plate of the vibration reduction system through a connector; and the vibration reduction system is arranged in the installation space above the bottom concave surface.

[0009] By setting one side of the flywheel disc as a stepped installation space and eliminating the single-mass flywheel of the prior art solution, the installation of the torque transmission component is facilitated, making the entire torque limiter assembly more compact and reasonable, and facilitating the layout of the vehicle. By forming a tongue piece on the annular first step by stamping, the use of a cover plate in the prior art is eliminated, saving materials and reducing costs.

[0010] Furthermore, the L-shaped tongue piece for pressing the annular disc spring is formed by stamping and bending at the turning point of the first annular step, and an L-shaped opening is formed at the turning point; and a plurality of protrusions on the outer edge of the annular pressure plate are confined within each relative L-shaped opening.

[0011] The tongue is directly stamped out on the flywheel disc. The tongue is first stamped into a straight shape and then bent into an L shape by a die to press the disc spring. The disc spring provides the axial pressure of the torque transmission component. The L-shaped opening formed at the first annular step can be used as a material source for the tongue and as a limiting position for the outer edge protrusion of the annular pressure plate, saving materials and the use of a cover plate, killing two birds with one stone.

[0012] Furthermore, the annular friction plate is composed of two plates; the connecting part includes an annular friction plate connecting plate, an annular active plate, an annular outer ring tooth and a limiting structure arranged on the outer edge of a circular driven plate; the annular friction plate connecting plate includes an outer first ring body and an inner second ring body, the first ring body is clamped between the two annular friction plates, and the annular active plate and the limiting structure are arranged on the second ring body; the inner ring of the annular active plate is provided with an annular inner ring tooth meshed with the annular outer ring tooth; the circular driven plate is sleeved in the annular active plate; the annular outer ring tooth of the circular driven plate is meshed with the annular inner ring tooth of the annular active plate on the second ring body, and the limiting structure is limited at the meshing position of the annular outer ring tooth and the annular inner ring tooth, so that the annular inner ring tooth and the annular outer ring tooth are limited between the limiting structure and the annular friction plate connecting plate.

[0013] The annular friction plate, the flywheel disc and the annular pressure plate together serve as the friction pair of the torque limiter assembly. The annular friction plate is connected to the vibration reduction system through a connecting piece. At the same time, the axial movement of the vibration reduction system is limited by a limiting structure. The vibration reduction system and the annular friction plate are limited as a whole by the limiting structure. The limiting structure is detachable, which is convenient for removing the vibration reduction system for maintenance and for connecting the flywheel disc to the power device.

[0014] Furthermore, the limiting structure includes a C-shaped retaining ring and an annular clamping member; the annular clamping member includes an annular connecting portion connected to the second ring body of the annular friction plate connecting disk and a plurality of flanged limiting portions arranged on the inner ring of the annular connecting portion; a ring removal opening for facilitating the removal of the retaining ring is provided between adjacent flanged limiting portions; the retaining ring is limited at the meshing position of the annular inner ring teeth and the annular outer ring teeth by a plurality of flanged limiting portions, thereby limiting the axial movement of the vibration reduction system.

[0015] By connecting the annular clamping piece with the second ring body of the annular friction plate connecting disk, a C-shaped snap ring can be independently obtained, so that the entire torque limiter can be decomposed into three parts. During installation, the flywheel disk is first installed at the output end of the power device, and then the vibration reduction system and the components in the flywheel disk installation space are limited by the C-shaped snap ring as a whole, which can achieve quick installation and easy disassembly.

[0016] Preferably, the damping plate and the circular driven plate are riveted; the annular connecting portion of the annular clamping piece is arranged above the annular active plate and is riveted to the annular active plate and the second ring body of the annular friction plate connecting plate; the two annular friction plates are riveted to the first ring body of the annular friction plate connecting plate.

[0017] By riveting the annular connection part of the shaped pressing member, the annular active disk and the second ring body of the annular friction plate connecting disk, space can be saved, and the coordination of the limiting structure, the annular active disk and the circular driven disk can be facilitated. At the same time, the stability of the operation of the entire system can be ensured by riveting the various structures.

[0018] Furthermore, bolt connection holes are arranged on the annular bottom concave surface of the flywheel disc to connect the output shaft of the power device.

[0019] The present invention also includes a method for processing and assembling the torque limiter assembly, the steps of which are as follows:

[0020] S1. A plurality of L-shaped tongue pieces are first punched out at the turning point of the first step of the disc material for processing a circular flywheel disc, and then the bottom concave surface is punched out respectively, and then the first step, the second step and the bottom concave surface are punched out respectively;

[0021] S2, fixedly connecting the first ring body of the annular friction plate connecting disk to the two annular friction plates, and fixedly connecting the annular active disk, the annular connecting portion of the annular pressing member, and the second ring body of the annular friction plate connecting disk;

[0022] S3, sequentially install the annular friction plate, annular pressure plate, and annular disc spring formed in step S2 from bottom to top on the second step; bend a plurality of straight L-shaped tongues into L-shaped tongues through a mold to press the annular disc spring;

[0023] S4, fixing the flywheel disc to the output shaft of the power device by means of bolts through the connection holes on the bottom concave surface;

[0024] S5. Engage the circular driven plate of the vibration reduction system with the annular active plate on the second ring body of the annular friction plate connecting plate, and then clamp the C-shaped clamping ring at the meshing position of the annular outer ring teeth and the annular inner ring teeth through the flanged limiting portion, so that the vibration reduction system can be installed to form a torque limiter assembly.

[0025] The torque limiter assembly and the processing and assembly method thereof of the present invention, by stamping a flywheel disc and punching out tongue pieces on the flywheel disc, eliminate the single-mass flywheel and cover plate in the prior art, reduce the use of parts and materials, and lower the cost; at the same time, by stamping to form an installation space in the flywheel disc, it is convenient for the reasonable layout of the torque transmission components, making the torque limiter assembly more compact and conducive to the layout of the torque limiter assembly; by using a limiting structure, it is convenient to install, disassemble and repair the vibration reduction system, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The contents expressed in the drawings of the specification and the symbols in the drawings are briefly explained:

[0027] Figure 1 It is a stereogram of the existing torque limiter assembly for new energy vehicles;

[0028] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0029] Figure 3 It is a stereogram of the torque limiter assembly of the embodiment;

[0030] Figure 4 for Figure 3 Sectional view at the middle BB;

[0031] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0032] Figure 6 A three-dimensional diagram of a flywheel disc in an embodiment;

[0033] Figure 7 It is a structural schematic diagram of the corresponding installation of the flywheel disc and the annular pressure plate in the embodiment;

[0034] Figure 8 It is a schematic structural diagram of an annular pressing member of an embodiment;

[0035] Fig. 9 It is a schematic diagram of the structure of the matching of the annular driving disc and the circular driven disc in the embodiment;

[0036] Fig.10 This is a schematic structural diagram of the connection between the annular friction plate and the limiting structure in the embodiment;

[0037] Fig.11 A schematic diagram of a state in which a vibration reduction system and a torque transmission assembly are installed with each other in an embodiment;

[0038] In the figure: 1 is a flywheel disc; 1-1 is an annular first step; 1-2 is an annular second step; 1-3 is a bottom concave surface; 1-4 is a tongue; 1-5 is a bolt connection hole; 2 is an annular disc spring; 3 is an annular pressure plate; 3-1 is a protrusion; 4 is an annular friction plate; 5 is a vibration reduction system; 5-1 is a vibration reduction plate; 5-2 is a circular driven plate; 5-3 is a vibration reduction structure; 6 is a connecting piece; 6-1 is an annular friction plate connecting plate; 6-2 is an annular active plate; 6-3 is an annular outer ring tooth; 6-4 is an annular inner ring tooth; 7 is a limiting structure; 7-1 is a retaining ring; 7-2 is an annular clamping piece; 7-21 is an annular connecting portion; 7-22 is a flanged limiting portion; 7-23 is a ring removal opening. DETAILED DESCRIPTION

[0039] The present invention is further described below with reference to a non-limiting embodiment of the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention.

[0040] Example

[0041] like Figure 3 , 4As shown in FIGS. 5 and 6, the torque limiter assembly includes a torque transmission component, a vibration reduction system 5, and a connector 6 connecting the torque transmission component and the vibration reduction system 5; the torque transmission component includes a circular flywheel disc 1, an annular disc spring 2, an annular pressure plate 3, and an annular friction plate 4; the vibration reduction system 5 includes a vibration reduction disc 5-1, a circular driven disc 5-2, and a vibration reduction structure 5-3, and the vibration reduction structure 5-3 is arranged between the vibration reduction disc 5-1 and the circular driven disc 5-2; Figure 6 As shown, one side of the flywheel 1 is connected to the power device, and the other side is a mounting space with a gradient concave, which is composed of a first annular step 1-1, a second annular step 1-2 and a bottom concave surface 1-3 that decrease step by step; the annular disc spring 2, the annular pressure plate 3 and the annular friction plate 4 are sequentially superimposed on the second step from top to bottom, and a number of L-shaped tongues 1-4 are arranged on the first step to press the disc spring; the annular friction plate 4 is connected to the circular driven plate 5-2 of the vibration reduction system 5 through a connecting piece 6; the vibration reduction system 5 is arranged in the mounting space above the bottom concave surface 1-3; a bolt connection hole 1-5 is arranged on the annular bottom concave surface 1-3 of the flywheel 1 to connect the output shaft of the power device. Figure 6 , 7 As shown, an L-shaped tongue piece 1-4 for pressing the annular disc spring 2 is formed by stamping and bending at the turning point of the annular first step 1-1, and an L-shaped opening is formed at the turning point; a plurality of protrusions 3-1 on the outer edge of the annular pressure plate 3 are confined in each relative L-shaped opening.

[0042] like Figure 5 As shown, the annular friction plate 4 is composed of two plates; the connecting member 6 includes an annular friction plate connecting plate 6-1, an annular driving plate 6-2, an annular outer ring tooth 6-3 arranged on the outer edge of the circular driven plate 5-2, and a limiting structure 7; the annular friction plate connecting plate 6-1 includes an outer first ring body and an inner second ring body, and the first ring body is sandwiched between the two annular friction plates 4, as shown in FIG. Fig. 9 , 10 As shown, the annular active disk 6-2 and the limiting structure 7 are arranged on the second ring body; the inner ring of the annular active disk 6-2 is provided with an annular inner ring tooth 6-4 meshing with the annular outer ring tooth 6-3; Fig.11 As shown, the circular driven disc 5-2 is sleeved in the annular driving disc 6-2; Fig. 9 , 10 As shown in Figures 11, the annular outer ring teeth 6-3 of the circular driven disc 5-2 mesh with the annular inner ring teeth 6-4 of the annular driving disc 6-2 on the second ring body, and the limiting structure 7 is limited at the meshing position of the annular outer ring teeth 6-3 and the annular inner ring teeth 6-4, so that the annular inner ring teeth 6-4 and the annular outer ring teeth 6-3 are limited between the limiting structure 7 and the annular friction plate connecting disc 6-1. Figure 4 , 5As shown in Figures 8, 10 and 11, the limiting structure 7 includes a C-shaped retaining ring 7-1 and an annular clamping member 7-2; the annular clamping member 7-2 includes an annular connecting portion 7-21 connected to the second ring body of the annular friction plate connecting disk 6-1 and a plurality of flanged limiting portions 7-22 arranged on the inner ring of the annular connecting portion 7-21; a ring removal opening 7-23 for facilitating the removal of the retaining ring 7-1 is provided between adjacent flanged limiting portions 7-22; the retaining ring 7-1 is limited at the meshing position of the annular inner ring teeth 6-4 and the annular outer ring teeth 6-3 by a plurality of flanged limiting portions 7-22, thereby limiting the axial movement of the vibration reduction system 5.

[0043] like Figure 3 , 11 As shown, the damping plate 5-1 and the circular driven plate 5-2 are riveted; Fig. 9 , 10 As shown, the annular connecting portion 7-21 of the annular clamping member 7-2 is arranged above the annular active disk 6-2, and is riveted to the annular active disk 6-2 and the second ring body of the annular friction plate connecting disk 6-1; the two annular friction plates 4 are riveted to the first ring body of the annular friction plate connecting disk 6-1.

[0044] The processing and assembly method of the torque limiter assembly of this embodiment comprises the following steps:

[0045] S1, punching out a plurality of straight L-shaped tongue pieces 1-4 at the turning point of the first step of the disc material used for processing the circular flywheel disc 1, and then punching out the bottom concave surface 1-3 respectively, and then punching out the first step, the second step and the bottom concave surface 1-3 respectively;

[0046] S2, the first ring body of the annular friction plate connecting disk 6-1 is fixedly connected to the two annular friction plates 4, and the annular active disk 6-2, the annular connecting portion 7-21 of the annular pressing member 7-2 and the second ring body of the annular friction plate connecting disk 6-1 are fixedly connected;

[0047] S3, sequentially install the annular friction plate 4, annular pressure plate 3, and annular disc spring 2 formed in step S2 from bottom to top on the second step; bend a plurality of straight L-shaped tongue pieces 1-4 into L-shaped tongue pieces 1-4 through a mold to press the annular disc spring 2;

[0048] S4, fixing the flywheel 1 to the output shaft of the power device by means of bolts through the connecting holes on the bottom concave surface 1-3;

[0049] S5. Engage the circular driven plate 5-2 of the vibration reduction system 5 with the annular active plate 6-2 on the second ring body of the annular friction plate connecting plate 6-1, and then clamp the C-shaped retaining ring 7-1 at the meshing position of the annular outer ring teeth 6-3 and the annular inner ring teeth 6-4 through the flanged limiter 7-22, so that the vibration reduction system 5 can be installed to form a torque limiter assembly.

[0050] The working principle of the torque limiter assembly of this embodiment is as follows: the flywheel disc 1 is connected to the output part of the power device by bolts, and the compression force is provided by the annular disc spring 2 and transmitted to the annular friction plate 4, the annular friction plate 4 is fixedly connected to the annular friction plate connecting plate 6-1, the power is transmitted to the annular friction plate connecting plate 6-1, the annular friction plate 4 is fixedly connected to the annular active disc 6-2, the annular inner ring teeth 6-4 of the annular active disc 6-2 are meshed with the outer ring teeth of the circular driven disc 5-2, and the torque is transmitted to the vibration reduction system 5 through the meshing of the teeth, the circular driven disc 5-2 is riveted to the vibration reduction disc 5-1, when the circular driven disc 5-2 rotates, the window of the vibration reduction disc 5-1 and the window of the circular driven disc 5-2 jointly compress the spring of the vibration reduction system 5, the end surface of the spring pushes the spline hub to rotate, and the spline hub transmits the torque to the generator or the gearbox through the spline in the middle of the vibration reduction system 5 and the spline shaft. The torque limiter of the present invention can be used in power devices such as airplanes, automobiles, and unmanned aerial vehicles. It has a simple and compact structure, uses fewer parts, and the vibration reduction system 5 is easy to install and disassemble, and is easy to use.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", etc. appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A torque limiter assembly, comprising a torque transmission component, a vibration reduction system (5), and a connector (6) connecting the torque transmission component and the vibration reduction system (5); characterized in that: The torque transmission assembly comprises a circular flywheel disc (1), an annular disc spring (2), an annular pressure plate (3) and an annular friction plate (4); the vibration reduction system (5) comprises a vibration reduction disc (5-1), a circular driven disc (5-2) and a vibration reduction structure (5-3), wherein the vibration reduction structure (5-3) is arranged between the vibration reduction disc (5-1) and the circular driven disc (5-2); one side of the flywheel disc (1) is connected to the power device, and the other side is an installation space with a gradient concave, wherein the installation space is composed of a first annular platform with a gradually decreasing The invention relates to a vibration reduction system (5) and a vibration reduction system (6). The vibration reduction system (5) is composed of a first step (1-1), an annular second step (1-2) and a bottom concave surface (1-3); the annular disc spring (2), an annular pressure plate (3) and an annular friction plate (4) are sequentially stacked on the second step from top to bottom, and a plurality of L-shaped tongues (1-4) are arranged on the first step to press the disc spring; the annular friction plate (4) is connected to a circular driven plate (5-2) of a vibration reduction system (5) through a connecting piece (6); and the vibration reduction system (5) is arranged in an installation space above the bottom concave surface (1-3).

2. The torque limiter assembly according to claim 1, characterized in that: The L-shaped tongue piece (1-4) for pressing the annular disc spring (2) is formed by stamping and bending at the turning point of the annular first step (1-1), and an L-shaped opening is formed at the turning point; a plurality of protrusions (3-1) on the outer edge of the annular pressure plate (3) are confined within the respective relative L-shaped openings.

3. The torque limiter assembly according to claim 1, characterized in that: The annular friction plate (4) is composed of two plates; the connecting member (6) comprises an annular friction plate connecting plate (6-1), an annular driving plate (6-2), an annular outer ring tooth (6-3) arranged on the outer edge of a circular driven plate (5-2), and a limiting structure (7); the annular friction plate connecting plate (6-1) comprises an outer first ring body and an inner second ring body, the first ring body is sandwiched between the two annular friction plates (4), the annular driving plate (6-2) and the limiting structure (7) are arranged on the second ring body; the inner ring of the annular driving plate (6-2) is provided with an annular outer ring tooth (6-3) arranged on the outer edge of the circular driven plate (5-2); The circular driven disk (5-2) is sleeved in the annular driving disk (6-2); the annular outer ring teeth (6-3) of the circular driven disk (5-2) are meshed with the annular inner ring teeth (6-4) of the annular driving disk (6-2) on the second ring body, and the limiting structure (7) is limited at the meshing position of the annular outer ring teeth (6-3) and the annular inner ring teeth (6-4), so that the annular inner ring teeth (6-4) and the annular outer ring teeth (6-3) are limited between the limiting structure (7) and the annular friction plate connecting disk (6-1).

4. The torque limiter assembly according to claim 3, characterized in that: The limiting structure (7) comprises a C-shaped snap ring (7-1) and an annular clamping member (7-2); the annular clamping member (7-2) comprises an annular connecting portion (7-21) connected to the second ring body of the annular friction plate connecting disk (6-1) and a plurality of flanged limiting portions (7-22) arranged on the inner ring of the annular connecting portion (7-21); a ring removal opening (7-23) for facilitating the removal of the snap ring (7-1) is provided between adjacent flanged limiting portions (7-22); the snap ring (7-1) is limited at the meshing position of the annular inner ring teeth (6-4) and the annular outer ring teeth (6-3) by the plurality of flanged limiting portions (7-22), thereby limiting the axial movement of the vibration reduction system (5).

5. The torque limiter assembly according to any one of claims 1 to 4, characterized in that: The damping disc (5-1) and the circular driven disc (5-2) are riveted; the annular connecting portion (7-21) of the annular pressing member (7-2) is arranged above the annular active disc (6-2) and is riveted to the annular active disc (6-2) and the second ring body of the annular friction plate connecting disc (6-1); and the two annular friction plates (4) are riveted to the first ring body of the annular friction plate connecting disc (6-1).

6. The torque limiter assembly according to claim 1, characterized in that: A bolt connection hole (1-5) is provided on the annular bottom concave surface (1-3) of the flywheel disc (1) for connecting the output shaft of the power device.

7. A method for processing and assembling a torque limiter assembly, characterized in that: The steps include: S1, punching out a plurality of straight L-shaped tongue pieces (1-4) at the turning point of the first step of a disc material for processing a circular flywheel disc (1), then punching out the bottom concave surface (1-3) respectively, and then punching out the first step, the second step and the bottom concave surface (1-3) respectively; S2, fixedly connecting the first ring body of the annular friction plate connecting disk (6-1) and the two annular friction plates (4), and fixedly connecting the annular active disk (6-2), the annular connecting portion (7-21) of the annular pressing member (7-2), and the second ring body of the annular friction plate connecting disk (6-1); S3, sequentially installing the annular friction plate (4), annular pressure plate (3), and annular disc spring (2) formed in step S2 from bottom to top on the second step; bending a plurality of straight L-shaped tongue pieces (1-4) into L-shaped tongue pieces (1-4) through a mold to press the annular disc spring (2); S4, fixing the flywheel disc (1) to the output shaft of the power device by means of bolts through the connection holes on the bottom concave surface (1-3); S5. The circular driven disc (5-2) of the vibration reduction system (5) is meshed with the annular active disc (6-2) on the second ring body of the annular friction plate connecting disc (6-1), and then the C-shaped clamping ring (7-1) is clamped at the meshing position of the annular outer ring teeth (6-3) and the annular inner ring teeth (6-4) through the flanged limit portion (7-22), thereby installing the vibration reduction system (5).

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