Flexible flywheel assembly and vehicle

Abstract

The present invention discloses a flexible flywheel assembly and a vehicle, relating to the technical field of flexible flywheel assemblies. The flexible flywheel assembly is used to connect to a drive shaft, and includes a flywheel body and at least one friction unit. The flywheel body is provided with external gear teeth on its outer periphery for engaging with engine gears to rotate the drive shaft. The at least one friction unit is provided on the flywheel body to reduce the amount of rotation. The technical solution provided by the present invention, through the provision of the friction unit, reduces the amount of rotation of the flywheel body itself, preventing the flywheel body from continuing to rotate due to inertia when disconnected from the drive motor, thereby causing wear or even damage to the drive shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible flywheel assemblies, and in particular to a flexible flywheel assembly and a vehicle. Background Art

[0002] A hybrid vehicle engine is an engine technology that combines a fuel engine and a generator. It is a driving mode that combines fuel drive and power generation drive under different working conditions to provide the vehicle with better performance and higher fuel economy. The flexible flywheel assembly of the hybrid engine is connected to the drive motor and the gearbox. When the generator and the drive motor are driving the vehicle at the same time, the flexible flywheel assembly continues to rotate and consumes energy and work, resulting in energy waste in the vehicle.

[0003] In the prior art, when the flexible flywheel is separated from the drive motor, it will still rotate due to the action of inertia. The rotational force at this time will cause wear on the rotating shaft. Over time, it will have a serious impact on the rotating shaft or even damage it. Summary of the Invention

[0004] The main purpose of the present invention is to propose a flexible flywheel assembly and a vehicle, aiming to provide a method for reducing the inertia of the flywheel and accelerating the stop of the flywheel by reducing the rotation amount of the flywheel.

[0005] To achieve the above objectives, the present invention provides a flexible flywheel assembly for connection to a transmission shaft, comprising:

[0006] a flywheel body, on the outer circumference of which external gear teeth are provided for engaging with the engine gears to rotate the transmission shaft; and

[0007] At least one friction unit is provided on the flywheel body to reduce the rotation amount.

[0008] In one embodiment, the friction unit comprises:

[0009] an accommodating portion, provided on one side of the flywheel body along the thickness direction thereof, to form an accommodating space;

[0010] a moving portion, disposed in the accommodating space, for moving closer to or farther from the center of the flywheel body to abut against or separate from the outer side wall; and

[0011] The guide portion is arranged in the accommodating space and is used for guiding the moving portion.

[0012] In one embodiment, the movable part includes at least one connecting block, which is movably installed inside the accommodating space. A through groove is opened inside the connecting block, and an insertion rod with one end extending to the outside thereof is movably installed inside the through groove. A clamping plate is fixedly installed at one end of the insertion rod, and the clamping plate is located inside the through groove. A spring is movably installed inside the through groove, and the two ends of the spring are respectively fixed to the inner wall of the through groove and one side of the clamping plate located in the through groove. The end of the insertion rod away from the connecting block is fixedly connected to a friction plate, and the end of the friction plate away from the insertion rod is fixedly connected to a friction pad.

[0013] In one embodiment, the guide portion includes at least one guide rod, both ends of the guide rod extend along the diameter direction of the flywheel body and are fixed to the inner wall of the accommodating space, a movable plate is movably installed on the outer peripheral wall of the guide rod, a compression spring is sleeved on the outer peripheral wall of the guide rod, both ends of the compression spring are respectively fixed to the movable plate and the inner wall of the accommodating space, a connecting rod is fixedly installed on the outer peripheral wall of the movable plate, a movable block is sleeved on the outer peripheral side of the connecting rod, and one side of the movable block is connected to the outer peripheral wall of the connecting block.

[0014] In one embodiment, the friction unit further includes a limiting portion, which includes a limiting groove, a limiting column, and an anti-slip plate;

[0015] The limiting groove is opened in the accommodating space, the outer surface of the limiting column contacts the inner surface of the limiting groove, one end of the limiting column is connected to the outer peripheral wall of the moving block, and one side of the anti-slip plate is fixed to the end of the connecting rod away from the moving plate.

[0016] In one embodiment, a plurality of protrusions are provided on the outer surface of the limiting column, and the outer peripheral wall of each protrusion is in contact with the limiting groove.

[0017] In one embodiment, the flexible flywheel assembly further includes a protective component, which includes an outer shell and two clamping parts; wherein,

[0018] The two clamping parts are respectively arranged on the outer shell and the flywheel body, and the two clamping parts are clamped with each other to connect and align the outer shell and the flywheel body.

[0019] In one embodiment, the flexible flywheel assembly further includes a protective component, which includes an outer shell and two clamping parts; wherein,

[0020] The two clamping parts are respectively arranged on the outer shell and the flywheel body, and the two clamping parts are clamped with each other to connect and align the outer shell and the flywheel body.

[0021] In one embodiment, the movable portion includes a buffer spring and a movable plate connected to the buffer spring, one end of the movable plate extends into the interior of the outer peripheral side of the flywheel body, and two ends of the buffer spring are respectively connected to one side of the movable plate located inside the flywheel body and the inner wall of the flywheel body;

[0022] The abutting portion includes an abutting plate and an abutting pad connected to the abutting plate. The abutting plate is connected to an end of the movable plate away from the spring. The abutting pad abuts against the outer peripheral wall of the outer shell.

[0023] The present invention also provides a vehicle comprising the flexible flywheel assembly.

[0024] The technical solution of the present invention reduces the rotation of the flywheel body by adopting the setting of the friction unit, thereby preventing the flywheel body from continuing to rotate due to inertia when it is separated from the drive motor, thereby causing wear or even damage to the drive shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of an embodiment of a flexible flywheel assembly provided by the present invention;

[0027] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0028] Figure 3 A three-dimensional schematic diagram of a friction component in an embodiment of a flexible flywheel assembly provided by the present invention;

[0029] Figure 4 A three-dimensional schematic diagram of a protective component in an embodiment of a flexible flywheel assembly provided by the present invention;

[0030] Figure 5 A schematic diagram of a weight-reducing hole in an embodiment of a flexible flywheel assembly provided by the present invention;

[0031] Figure 6 This is an overall three-dimensional schematic diagram of the friction unit in an embodiment of the flexible flywheel assembly provided by the present invention.

[0032] Description of Figure Numbers:

[0033] 100. Flexible flywheel assembly; 1. Flywheel body; 2. Outer gear; 3. Friction unit; 31. Accommodation portion; 311. Accommodation space; 32. Moving portion; 321. Connecting block; 322. Through slot; 323. Insertion rod; 324. Snap-on plate; 325. Spring; 326. Friction plate; 327. Friction pad; 33. Guide portion; 331. Guide rod; 332. Moving plate; 333. Compression spring; 334. Connecting rod; 335, moving block; 34, limiting part; 341, limiting groove; 342, limiting column; 343, anti-slip plate; 4, protective component; 41, outer shell; 411, connecting hole; 42, clamping part; 5, friction component; 51, movable part; 511, buffer spring; 512, movable plate; 52, abutment part; 521, abutment plate; 522, abutment pad; 6, reinforcing rib; 7, weight-reducing hole; 8, positioning hole.

[0034] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] A hybrid vehicle engine is an engine technology that combines a fuel engine and a generator. It is a driving mode that combines fuel drive and power generation drive under different working conditions to provide the vehicle with better performance and higher fuel economy. The flexible flywheel assembly of the hybrid engine is connected to the drive motor and the gearbox. When the generator and the drive motor are driving the vehicle at the same time, the flexible flywheel assembly continues to rotate and consumes energy and work, resulting in energy waste in the vehicle.

[0039] In the prior art, when the flexible flywheel is separated from the drive motor, it will still rotate due to the action of inertia. The rotational force at this time will cause wear on the rotating shaft. Over time, it will have a serious impact on the rotating shaft or even damage it.

[0040] The present invention proposes a flexible flywheel assembly, which aims to provide a method for reducing the inertia of the flywheel and accelerating the stop of the flywheel by reducing the rotation amount of the flywheel.

[0041] See also Figures 1 to 6 In one embodiment of the present invention, the flexible flywheel assembly is used to connect with the transmission shaft. The flexible flywheel assembly 100 includes a flywheel body 1 and at least one friction unit 3. External gear teeth 2 are provided on the outer peripheral side of the flywheel body 1 to engage with the engine gear for rotating the transmission shaft; the at least one friction unit 3 is provided on the flywheel body 1 to reduce the amount of rotation.

[0042] The technical solution of the present invention reduces the rotation amount of the flywheel body 1 by adopting the setting of the friction unit 3, thereby preventing the flywheel body 1 from continuing to rotate due to inertia when it is separated from the drive motor, thereby causing wear or even damage to the drive shaft.

[0043] It can be understood that in some embodiments, an inertia ring with anti-rotation teeth on the outer circle is fixed to the drive disk by fastening bolts and is engaged with the anti-rotation block on the engine. At this time, the flexible flywheel assembly will stop rotating, reducing the long-term rotation work of the engine. However, there are still certain problems in actual use. Due to the existence of inertia force, it is easy for the flexible flywheel assembly to continue to rotate. Therefore, in this embodiment, by setting the friction unit 3, the purpose of reducing the rotation amount of the flywheel body 1 is achieved, avoiding the problem of continuously driving the flywheel body to rotate due to the action of inertia force, and protecting the transmission shaft.

[0044] It should be noted that, in this embodiment, there is no specific restriction on the number of the friction units 3, which can be one or more. In order to better increase the friction between the drive shaft and reduce rotation, multiple friction units 3 are selected and arranged, and each friction unit 3 is distributed in a circular array on one side of the flywheel body 1 along its thickness direction.

[0045] The friction unit 3 can be configured as a friction pad, a friction plate, etc. For specific configurations, please refer to the following description.

[0046] The outer gear 2 and the flywheel body 1 are mounted in a fixed manner.

[0047] Furthermore, in order to achieve the purpose of reducing the rotation amount, in the technical solution of the present invention, the friction unit 3 includes a receiving portion 31, a moving portion 32 and a guiding portion 33, the receiving portion 31 is arranged on one side of the flywheel body 1 along its thickness direction to form an receiving space 311; the moving portion 32 is arranged in the receiving space 311, and is used to approach or move away from the center position of the flywheel body 1 to abut or disengage the external side wall; the guiding portion 33 is arranged in the receiving space 311, and is used to guide the moving portion 32; in this way, through the setting of the moving portion 32, the moving portion 32 can approach or disengage toward the center position of the flywheel body 1, so as to achieve the purpose of abutting or loosening the external side wall, and then realize that when the flywheel body 1 stops rotating, the friction force with the external side wall is increased to accelerate the stop, thereby reducing the rotation amount of the flywheel body.

[0048] It should be noted that the accommodating portion 31 can be arranged in a slotted manner, which is simple to operate and convenient to process, or it can be arranged in a box structure with an accommodating space, which is convenient for installation and use. In this embodiment, the slotted arrangement is adopted. Compared with the box structure, it does not occupy additional space, reduces the usage position, and does not affect the use of the flywheel body 1 itself.

[0049] The movable portion 32 may be configured to electrically drive the friction plate to move, or it may be configured to act on its own, such as a spring to drive the friction plate to move. Considering cost savings and safety of use, in this embodiment, a spring is configured to drive the movable portion 32 closer to or away from the center position of the flywheel body by the force brought about by the rotation of the flywheel body 1 itself.

[0050] The guide portion 33 may be provided in the form of a pulley rail or a slider slot. For specific provision, please refer to the following description.

[0051] It should be explained that the external side wall in this embodiment can be the side wall of a pressure plate, a transmission plate, etc.

[0052] Furthermore, in order to achieve the purpose of relying on its own force to move, in the technical solution of the present invention, the moving part 32 includes at least one connecting block 321, the connecting block 321 is movably installed inside the accommodating space 311, a through slot 322 is provided inside the connecting block 321, a plug rod 323 with one end extending to the outside of the through slot 322 is movably installed inside the through slot 322, a clamping plate 324 is fixedly installed at one end of the plug rod 323, the clamping plate 324 is located inside the through slot 322, a spring 325 is movably installed inside the through slot 322, and the spring The two ends of 325 are respectively fixed to the inner wall of the through groove 322 and one side of the clamping plate 324 located in the through groove 322, and the end of the insertion rod 323 away from the connecting block 321 is fixedly connected to the friction plate 326, and the end of the friction plate 326 away from the insertion rod 323 is fixedly connected to the friction pad 327, which is convenient for abutting the external side wall; in this way, through the setting of the insertion rod 323, it can move inside the connecting block 321, thereby squeezing or stretching the spring 325, thereby realizing the movement of the friction plate 326 driving the friction pad 327.

[0053] It should be explained that, due to the centrifugal force when the flywheel body 1 rotates, the connecting block 321 can move within the accommodating space 311, and thus move away from the center position of the flywheel body 1, so that the friction pad 327 does not contact the transmission shaft, thereby achieving the purpose of not affecting the use of the flywheel body 1.

[0054] It should be noted that the movement of the connecting block 321 in the accommodating space 311 can be achieved by setting a slider slot to drive the connecting block 321 to move in the accommodating space 311 without leaving the accommodating space 311.

[0055] The insertion rod 323 and the through slot 322 may be connected in such a manner that a through hole communicating with the outside is opened on one side of the through slot 322 , and the outer surface of the insertion rod 323 contacts the inner wall of the through hole.

[0056] The cam 331 of the embodiment of the present invention is a kind of cam 332 that is used for the rotation of the cam 332 and the cam 333 of the cam 334. The cam 332 of the embodiment of the present invention is a kind of cam 332 that is used for the rotation of the cam 332 and the cam333 of the cam334. When the connecting block 321 is subjected to the centrifugal force brought by the rotation of the flywheel body 1, the connecting block 321 can squeeze the compression spring 333 through the movable plate 332, and slide toward the center position away from the flywheel body 1 while the movable block 335 slides on the connecting rod 334. The connecting block 321 can slide following the sliding of the movable block 335 to achieve the purpose of not contacting the external side wall; when the flywheel body 1 slows down until it stops, the compression spring 333 gradually retracts from the stretched state, thereby driving the movable plate 332 to move closer to the center position, and then driving the connecting block 321 to move closer to the center position, and the friction plate 326 and the friction pad 327 move closer to the external side wall and contact, providing friction for the rotation of the flywheel body 1, thereby accelerating the rotation and stopping of the flywheel body 1.

[0057] When the cam 331 is in the unlocked position, the locking cam 332 is in the unlocked position, and the locking cam 332 is locked, so that the cam 331 is locked.

[0058] It should be noted that the limiting groove 341 is arranged at an angle, which is conducive to the connection block 321 being able to be retracted into the interior of the accommodating space 311 when subjected to centrifugal force, thereby avoiding affecting the use of the flywheel body 1.

[0059] In order to increase the friction force, in addition, in the technical solution of the present invention, a plurality of protrusions are provided on the outer surface of the limiting column 342, and the outer peripheral wall of each protrusion is in contact with the limiting groove 341; in this way, the setting of the protrusions is utilized to increase the friction resistance of the limiting column 342 when moving in the limiting groove 341, thereby accelerating the rotation and stopping of the flywheel body 1.

[0060] It should be supplemented that the protrusions are arranged in a circular array on the outer peripheral wall of the limiting column 342.

[0061] It should be noted that, in this embodiment, there is no specific limitation on the arrangement style of the protrusion, for example, a ball.

[0062] In order to protect the flywheel body 1, in addition, in the technical solution of the present invention, the flexible flywheel assembly 100 also includes a protective component 4, which includes an outer shell 41 and two clamping parts 42; wherein, the two clamping parts 42 are respectively arranged on the outer shell 41 and the flywheel body 1, and the two clamping parts 42 are clamped to each other to connect and align the outer shell 41 with the flywheel body 1; in this way, the outer shell 41 is provided to protect the flywheel body 1, and the two clamping parts 42 are provided to each other to facilitate the alignment and installation between the outer shell 41 and the flywheel body 1.

[0063] It should be noted that the two clamping parts 42 can be set up as two clamping cylinders, and the two clamping cylinders are respectively fixed on the outer shell 41 and the flywheel body 1. The two clamping cylinders can be clamped and aligned with each other, and the outer shell 41 and the flywheel body 1 are fixed by bolts.

[0064] It should be supplemented that the outer shell 41 is provided with connection holes 411 distributed in a circumferential array, and the outer shell 41 is connected to an external device through the connection holes 411 .

[0065] Taking into account that there is still rotational friction between the two clamping parts 42 after they are connected, in the technical solution of the present invention, the flexible flywheel assembly 100 also includes a friction component 5, and the friction component 5 includes a movable part 51 and an abutting part 52 connected to the movable part 51; wherein, the movable part 51 is arranged on the outer peripheral side of the flywheel body 1, and moves with the rotation of the flywheel body 1 to drive the abutting part 52 to approach or move away from the outer shell 41; in this way, through the arrangement of the movable part 51 and the abutting part 52, when the flywheel body 1 rotates, the centrifugal force brought about drives the movable part 51 to move, thereby making the abutting part 52 move away from the outer shell 41 and not abut against the outer shell 41.

[0066] Furthermore, in order to achieve the purpose of abutment, in the technical solution of the present invention, the movable part 51 includes a buffer spring 511 and a movable plate 512 connected to the buffer spring 511, one end of the movable plate 512 passes through the inner part of the outer peripheral side of the flywheel body 1, and the two ends of the buffer spring 511 are respectively fixed to one side of the movable plate 512 located inside the flywheel body 1 and the inner wall of the flywheel body 1; the abutment part 52 includes an abutment plate 521 and an abutment pad 522 connected to the abutment plate 521, the abutment plate 521 is fixed to the side of the movable plate 512 away from the buffer spring 511, and the abutment pad 522 is fixed to the The outer peripheral wall of the outer shell 41 is abutted; in this way, the buffer spring 511 is set to provide tension for the movable plate 512. When the flywheel body 1 rotates, the movable plate 512 moves away from the center position of the flywheel body 1 due to the centrifugal force, thereby stretching the buffer spring 511. In the process of decelerating and stopping the flywheel body 1, the buffer spring 511 gradually retracts from the stretched state, thereby driving the abutment plate 521 to move closer to the center position, and then driving the abutment pad 522 to press against the outer peripheral wall of the outer shell 41, providing friction for the rotation of the flywheel body 1, and accelerating the rotation and stopping of the flywheel body 1.

[0067] It should be explained that the abutting plate 521 and the movable plate 512 form a right angle, which is conducive to abutting the outer peripheral wall of the outer shell 41.

[0068] It should be supplemented that a convex portion is further provided on the outside of the movable plate 512 to prevent the movable plate 512 from being separated from the flywheel body 1 due to the centrifugal force.

[0069] The convex portion can be provided in the form of a bump, and the bumps are fixed on both sides of the movable plate 512 along the length direction thereof.

[0070] It should be added that the flywheel body 1 is provided with reinforcing ribs 6 and weight-reducing holes 7 distributed in a circumferential array. The reinforcing ribs 6 and the weight-reducing holes 7 are staggered to achieve the purpose of weight reduction while enhancing the toughness of the flywheel body 1.

[0071] A positioning hole 8 is provided on the flywheel body 1 , which is beneficial for positioning and installing the flywheel body 1 .

[0072] The present invention also proposes a vehicle, which includes a vehicle and a flexible flywheel assembly. The specific structure of the flexible flywheel assembly refers to the above-mentioned embodiment. Since this vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0073] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A flexible flywheel assembly for connecting to a transmission shaft, characterized in that: include: A flywheel body, on the outer circumference of which external gear teeth are provided for engaging with the engine gears to rotate the transmission shaft; as well as, at least one friction unit provided on the flywheel body for reducing the amount of rotation; The friction unit comprises: an accommodating portion, provided on one side of the flywheel body along the thickness direction thereof, to form an accommodating space; a moving portion, disposed in the accommodating space, for moving closer to or farther from the center of the flywheel body to abut against or separate from the outer side wall; and a guide portion, disposed in the accommodating space, for guiding the moving portion; The movable part includes at least one connecting block, the connecting block being movably installed inside the accommodating space, a through slot being opened inside the connecting block, a plug rod having one end extending to the outside thereof being movably installed inside the through slot, a clamping plate being fixedly installed at one end of the plug rod, the clamping plate being located inside the through slot, a spring being movably installed inside the through slot, the two ends of the spring being respectively fixed to the inner wall of the through slot and one side of the clamping plate located in the through slot, the end of the plug rod away from the connecting block being fixedly connected to a friction plate, and the end of the friction plate away from the plug rod being fixedly connected to a friction pad; The guide portion includes at least one guide rod, both ends of the guide rod extend along the diameter direction of the flywheel body and are fixed to the inner wall of the accommodating space, a movable plate is movably installed on the outer peripheral wall of the guide rod, a compression spring is sleeved on the outer peripheral wall of the guide rod, both ends of the compression spring are respectively fixed to the movable plate and the inner wall of the accommodating space, a connecting rod is fixedly installed on the outer peripheral wall of the movable plate, a movable block is sleeved on the outer peripheral side of the connecting rod, and one side of the movable block is connected to the outer peripheral wall of the connecting block.

2. The flexible flywheel assembly according to claim 1, wherein: The friction unit further includes a limiting portion, which includes a limiting groove, a limiting column and an anti-slip plate; The limiting groove is opened in the accommodating space, the outer surface of the limiting column contacts the inner surface of the limiting groove, one end of the limiting column is connected to the outer peripheral wall of the moving block, and one side of the anti-slip plate is fixed to the end of the connecting rod away from the moving plate.

3. The flexible flywheel assembly according to claim 2, characterized in that: The outer surface of the limiting column is provided with a plurality of protrusions, and the outer peripheral wall of each protrusion is in contact with the limiting groove.

4. The flexible flywheel assembly according to claim 1, wherein: The flexible flywheel assembly further includes a protection component, which includes an outer shell and two clamping parts; wherein, The two clamping parts are respectively arranged on the outer shell and the flywheel body, and the two clamping parts are clamped with each other to connect and align the outer shell and the flywheel body.

5. The flexible flywheel assembly according to claim 4, characterized in that: The flexible flywheel assembly further includes a friction component, which includes a movable portion and an abutting portion connected to the movable portion; wherein, The movable portion is arranged on the outer peripheral side of the flywheel body and moves along with the rotation of the flywheel body to drive the abutting portion to approach or move away from the outer shell.

6. The flexible flywheel assembly according to claim 5, characterized in that: The movable portion includes a buffer spring and a movable plate connected to the buffer spring, one end of the movable plate extends into the interior of the outer peripheral side of the flywheel body, and two ends of the buffer spring are respectively connected to one side of the movable plate located inside the flywheel body and the inner wall of the flywheel body; The abutting portion includes an abutting plate and an abutting pad connected to the abutting plate. The abutting plate is connected to an end of the movable plate away from the spring. The abutting pad abuts against the outer peripheral wall of the outer shell.

7. A vehicle, characterized in that: Comprising the flexible flywheel assembly according to any one of claims 1 to 6.

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