Damper and transmission shaft

Abstract

The present invention relates to the field of vehicle shock absorption, and in particular, to a damper and a transmission shaft. A mass component, the mass component includes a first mass unit and a second mass unit; an elastic component, the elastic component includes a first elastic body and a second elastic body. At least one spring element component, the spring element component includes a snap-fit ​​unit and a spring element unit. The damper includes a first shock absorption state; the first shock absorption state includes the first mass unit and the second mass unit generating a force on the spring element unit and the second elastic body so that the spring element unit and the second elastic body are deformed. In this way, the problem of low service life of the damper is solved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle shock absorption, and in particular to a damper and a transmission shaft. Background Art

[0002] As people's living standards improve, the requirements for vehicle ride comfort are getting higher and higher. During the driving process, the vehicle may vibrate and bump due to different road conditions. As a component of the vehicle suspension system, the damper mainly absorbs the vibration generated during the driving process of the vehicle to ensure the comfort of the vehicle.

[0003] The damper mainly includes a mass block and a rubber material, and absorbs external stress through the deformation of the rubber material to achieve the purpose of shock absorption. However, when the damper is subjected to external stress, the rubber material may be greatly deformed due to the large vibration, which makes the rubber material prone to aging during use. At the same time, since the damper is constantly subjected to vibration and compression during use, the repeated stress will aggravate the fatigue damage of the rubber material, thereby reducing the service life of the damper. Summary of the invention

[0004] In order to solve the problem of short service life of a damper, the present invention provides a damper and a transmission shaft.

[0005] In a first aspect, this embodiment provides a damper, the damper comprising:

[0006] A mass component, the mass component comprises a first mass unit and a second mass unit; the first mass unit is annular; the second mass unit is annular; the second mass unit is sleeved on the outer circumference of the first mass unit; the first mass unit and the second mass unit are spaced apart;

[0007] An elastic component, the elastic component comprising a first elastic body and a second elastic body; the first elastic body is annular; the second elastic body is annular; the outer peripheral wall of a part of the first elastic body is fixedly connected to the inner peripheral wall of the first mass unit; the inner peripheral wall of the second elastic body is fixedly connected to the outer peripheral wall of the first mass unit; the outer peripheral wall of the second elastic body is fixedly connected to the inner peripheral wall of the second mass unit; the second elastic body is arranged in the interval area between the first mass unit and the second mass unit;

[0008] At least one spring element assembly, the spring element assembly comprising a snap-fit ​​unit and a spring element unit, the snap-fit ​​unit being fixedly connected to the spring element unit; the snap-fit ​​unit being detachably connected to the first mass unit and part of the spring element unit being in contact with the second mass unit; and / or the snap-fit ​​unit being detachably connected to the second mass unit and part of the spring element unit being in contact with the first mass unit;

[0009] The damper includes a first damping state; the first damping state includes the first mass unit and the second mass unit generating a force on the spring unit and the second elastic body to cause the spring unit and the second elastic body to deform.

[0010] In some embodiments, the clamping unit includes a first clamping module and a second clamping module; the first clamping module is fixedly connected to one end of the spring unit, and the second clamping module is fixedly connected to the other end of the spring unit;

[0011] The first mass unit includes a first body and a plurality of first engaging holes; the spring assembly includes a first engaging state; the first engaging state includes one first engaging hole abutting against the first engaging module, and one first engaging hole abutting against the second engaging module.

[0012] In some embodiments, the clamping unit includes a first clamping module and a second clamping module; the first clamping module is fixedly connected to one end of the spring unit, and the second clamping module is fixedly connected to the other end of the spring unit;

[0013] The second mass unit includes a second body and a plurality of second engaging holes; the spring assembly includes a second engaging state; the second engaging state includes one second engaging hole abutting against the first engaging module, and one second engaging hole abutting against the second engaging module.

[0014] In some embodiments, the spring assembly further includes a avoidance unit; the avoidance unit includes a avoidance hole; the avoidance hole is arranged on the spring unit; and the avoidance hole passes through the spring unit.

[0015] In some embodiments, the spring sheet unit further includes a spring sheet module and a connecting module; the connecting module includes a first connecting sheet, a second connecting sheet, a third connecting sheet and a fourth connecting sheet; one end of the first connecting sheet is fixedly connected to the first end of the spring sheet module; one end of the second connecting sheet is fixedly connected to the first end of the spring sheet module; one end of the third connecting sheet is fixedly connected to the second end of the spring sheet module; one end of the fourth connecting sheet is fixedly connected to the second end of the spring sheet module; the first connecting sheet and the second connecting sheet are spaced apart; the third connecting sheet and the fourth connecting sheet are spaced apart;

[0016] The first engaging module includes a first engaging foot and a second engaging foot; the second engaging module includes a third engaging foot and a fourth engaging foot; one end of the first connecting piece away from the spring module is fixedly connected to the first engaging foot; one end of the second connecting piece is fixedly connected to the second engaging foot; one end of the third connecting piece is fixedly connected to the third engaging foot; one end of the fourth connecting piece is fixedly connected to the fourth engaging foot; the first engaging foot and the second engaging foot are arranged at intervals; the third engaging foot and the fourth engaging foot are arranged at intervals;

[0017] The spring assembly also includes an avoidance unit; the avoidance unit includes a first avoidance groove and a second avoidance groove; the spacing area between the first connecting piece, the second connecting piece, the first locking foot, and the second locking foot forms a first avoidance groove; the spacing area between the third connecting piece, the fourth connecting piece, the third locking foot, and the fourth locking foot forms a second avoidance groove.

[0018] In some embodiments, the damper includes a plurality of the spring sheet assemblies; the plurality of the spring sheet assemblies are circumferentially spaced apart along the outer circumference of the first mass unit.

[0019] In some embodiments, a plurality of the spring leaf assemblies in the first engaging state and a plurality of the spring leaf assemblies in the second engaging state are alternately and sequentially arranged along the circumference of the first mass unit.

[0020] In some embodiments, the second elastic bodies on both sides of the spring assembly are connected through avoidance holes.

[0021] In some embodiments, the second elastic bodies on both sides of the spring assembly are connected through a first avoidance groove and a second avoidance groove.

[0022] In some embodiments, the first mass unit includes a connecting hole; the connecting hole passes through the first mass unit; and the first elastomer is connected to the second elastomer through the connecting hole.

[0023] In a second aspect, this embodiment provides a transmission shaft, the transmission shaft comprising any one of the dampers in the first aspect; the transmission shaft further comprises:

[0024] Axis body;

[0025] The first elastic body is sleeved on the shaft body; the inner peripheral wall of the first elastic body abuts against the outer peripheral wall of the shaft body;

[0026] The transmission shaft includes a second damping state; the second damping state includes the vibration generated by the shaft body causing the first mass unit and the second mass unit to generate a force on the spring unit and the second elastic body causing the spring unit and the second elastic body to deform.

[0027] To solve the problem of low service life of the damper, the present invention has the following advantages:

[0028] The damper includes at least one spring sheet assembly, the spring sheet assembly includes a snap-fit ​​unit and a spring sheet unit, and the snap-fit ​​unit is fixedly connected to the spring sheet unit. The snap-fit ​​unit is detachably connected to the first mass unit and part of the spring sheet unit abuts against the second mass unit; and / or the snap-fit ​​unit is detachably connected to the second mass unit and part of the spring sheet unit abuts against the first mass unit. By setting the spring sheet assembly, during the use of the damper, the spring sheet and the rubber material jointly bear the vibration and stress during the use of the damper, thereby reducing the deformation of the rubber material, reducing fatigue damage to the rubber material, and thus improving the service life of the damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a damper according to an embodiment is shown;

[0030] Figure 2 A partial schematic diagram of a damper of another embodiment is shown;

[0031] Figure 3 A partial schematic diagram of a damper of a first embodiment is shown;

[0032] Figure 4 A partial schematic diagram of a damper of a second embodiment is shown;

[0033] Figure 5 A partial schematic diagram of a damper of a third embodiment is shown;

[0034] Figure 6 A partial schematic diagram of a damper of a fourth embodiment is shown;

[0035] Figure 7 A partial schematic diagram of a damper of a fifth embodiment is shown;

[0036] Figure 8 A partial schematic diagram of a damper of a sixth embodiment is shown;

[0037] Fig. 9 A partial schematic diagram of a damper of a seventh embodiment is shown;

[0038] Fig.10 A schematic diagram of a transmission shaft of an embodiment is shown.

[0039] Figure markings: 01 mass component; 11 first mass unit; 111 first body; 112 connecting hole; 113 first engaging hole; 12 second mass unit; 121 second body; 122 second engaging hole; 02 elastic component; 21 first elastic body; 22 second elastic body; 03 spring element component; 31 engaging unit; 311 first engaging module; 3111 first engaging foot; 3112 second engaging foot; 312 second engaging module; 3121 third engaging foot; 3122 fourth engaging foot; 32 spring element unit; 321 spring element module; 322 connecting module; 3221 first connecting piece; 3222 second connecting piece; 3223 third connecting piece; 3224 fourth connecting piece; 33 avoidance unit; 331 avoidance hole; 332 first avoidance groove; 333 second avoidance groove; 04 shaft body. DETAILED DESCRIPTION

[0040] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0041] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0042] In this embodiment, with the increasing demand for vehicle shock absorption, the application of dampers is becoming more and more widespread. The damper may include a first mass unit 11, a second mass unit 12, a first elastic body 21, and a second elastic body 22, wherein the second elastic body 22 is disposed in the interval area between the first mass unit 11 and the second mass unit 12. However, the second elastic body 22 is usually made of rubber material, which is prone to aging and failure during use. At the same time, the second elastic body 22 will continue to withstand vibration and compression during use, thereby aggravating the aging of the second elastic body 22 and reducing the life of the damper. This embodiment discloses a damper, such as Figure 2As shown, the damper includes: a mass component 01, the mass component 01 may include a first mass unit 11 and a second mass unit 12; the first mass unit 11 may be annular, so that each position of the first mass unit 11 can be uniformly stressed; the second mass unit 12 may be annular, so that each position of the second mass unit 12 can be uniformly stressed; the second mass unit 12 may be sleeved on the outer peripheral side of the first mass unit 11; the first mass unit 11 and the second mass unit 12 may be spaced apart;

[0043] The elastic component 02 may include a first elastic body 21 and a second elastic body 22; the first elastic body 21 may be annular; the second elastic body 22 may be annular; the outer peripheral wall of a portion of the first elastic body 21 may be fixedly connected to the inner peripheral wall of the first mass unit 11, so that the first elastic body 21 can transmit vibration to the first mass unit 11; the inner peripheral wall of the second elastic body 22 may be fixedly connected to the outer peripheral wall of the first mass unit 11, so that the first mass unit 11 can transmit vibration to the second elastic body 22; the outer peripheral wall of the second elastic body 22 may be fixedly connected to the inner peripheral wall of the second mass unit 12; the second elastic body 22 may be arranged in the interval area between the first mass unit 11 and the second mass unit 12;

[0044] At least one spring element assembly 03, the spring element assembly 03 may include a snap-fit ​​unit 31 and a spring element unit 32, the snap-fit ​​unit 31 may be fixedly connected to the spring element unit 32; the snap-fit ​​unit 31 is detachably connected to the first mass unit 11 and part of the spring element unit 32 abuts against the second mass unit 12; and / or, the snap-fit ​​unit 31 is detachably connected to the second mass unit 12 and part of the spring element unit 32 abuts against the first mass unit 11; since when the damper is impacted, the first mass unit 11 and the second mass unit 12 will both transmit the vibration to the second elastic body 22, so the vibration impact on the second elastic body 22 is relatively strong, and the second elastic body 22 is more likely to fail. By setting the spring element assembly 03, when the second elastic body 22 is impacted by vibration, the spring element unit 32 and the second elastic body 22 can jointly bear the vibration and stress during the use of the damper, thereby reducing the deformation of the second elastic body 22, reducing the fatigue damage of the second elastic body 22, and thus improving the service life of the damper.

[0045] The damper may include a first damping state; the first damping state may include the first mass unit 11 and the second mass unit 12 generating a force on the spring unit 32 and the second elastic body 22 to deform the spring unit 32 and the second elastic body 22. The spring unit 32 and the second elastic body 22 are deformed together, so that the spring unit 32 and the second elastic body 22 jointly bear the vibration and stress during the use of the damper, reduce fatigue damage to the second elastic body 22, and thus increase the service life of the damper.

[0046] In this embodiment, the engaging unit 31 may include a first engaging module 311 and a second engaging module 312; the first engaging module 311 may be fixedly connected to one end of the spring unit 32, and the second engaging module 312 may be fixedly connected to the other end of the spring unit 32;

[0047] The first mass unit 11 may include a first body 111 and a plurality of first engaging holes 113; the spring assembly 03 may include a first engaging state; Figure 1 As shown, the first engaging state may include a first engaging hole 113 abutting against the first engaging module 311, and a first engaging hole 113 abutting against the second engaging module 312, so that the spring unit 32 and the first mass unit 11 are more firmly connected, and when the second mass unit 12 is impacted by the outside world, the vibration and stress are transmitted to the spring assembly 03 only through one point, so that the spring assembly 03 can be more sensitive when impacted by the outside world. In other embodiments, such as Figure 3 , Figure 4 As shown, the first engaging hole 113 can penetrate the first body 111 .

[0048] In this embodiment, the engaging unit 31 may include a first engaging module 311 and a second engaging module 312; the first engaging module 311 may be fixedly connected to one end of the spring unit 32, and the second engaging module 312 may be fixedly connected to the other end of the spring unit 32;

[0049] The second mass unit 12 may include a second body 121 and a plurality of second engaging holes 122; the spring assembly 03 may include a second engaging state; Figure 2 As shown, the second engaging state may include a second engaging hole 122 abutting against the first engaging module 311, and a second engaging hole 122 abutting against the second engaging module 312, so that the connection between the spring unit 32 and the first mass unit 11 is more firmly established. At the same time, when the second mass unit 12 is subjected to external impact, the vibration and stress can be transmitted to the spring assembly 03 through two positions, so that when the spring assembly 03 is subjected to external impact, the stress magnitude of the first engaging module 311 and the second engaging module 312 can be adjusted according to the magnitude of the impact, further ensuring that each position of the spring assembly 03 is subjected to uniform force. In other embodiments, such as Figure 5 , Figure 6 As shown, the second engaging hole 122 may be a blind hole.

[0050] In this embodiment, if Fig. 9As shown, the spring assembly 03 may further include an avoidance unit 33; the avoidance unit 33 may include an avoidance hole 331; the avoidance hole 331 may be provided on the spring unit 32; the avoidance hole 331 may penetrate the spring unit 32. By providing the avoidance hole 331, the weight of the spring assembly 03 is reduced, and the weight distribution of the damper is prevented from being uneven, thereby affecting the shock absorption effect. In other embodiments, the avoidance unit 33 may include a plurality of avoidance holes 331 to further ensure that the damper is subjected to uniform force.

[0051] In this embodiment, the spring piece unit 32 may further include a spring piece module 321 and a connecting module 322; the connecting module 322 may include a first connecting piece 3221, a second connecting piece 3222, a third connecting piece 3223 and a fourth connecting piece 3224; one end of the first connecting piece 3221 may be fixedly connected to the first end of the spring piece module 321; one end of the second connecting piece 3222 may be fixedly connected to the first end of the spring piece module 321; one end of the third connecting piece 3223 may be fixedly connected to the second end of the spring piece module 321; one end of the fourth connecting piece 3224 may be fixedly connected to the second end of the spring piece module 321; the first connecting piece 3221 and the second connecting piece 3222 may be spaced apart; the third connecting piece 3223 and the fourth connecting piece 3224 may be spaced apart;

[0052] The first engaging module 311 may include a first engaging foot 3111 and a second engaging foot 3112; the second engaging module 312 may include a third engaging foot 3121 and a fourth engaging foot 3122; the end of the first connecting piece 3221 away from the spring module 321 may be fixedly connected to the first engaging foot 3111; one end of the second connecting piece 3222 may be fixedly connected to the second engaging foot 3112; one end of the third connecting piece 3223 may be fixedly connected to the third engaging foot 3121; one end of the fourth connecting piece 3224 may be fixedly connected to the fourth engaging foot 3122; the first engaging foot 3111 and the second engaging foot 3112 may be arranged at intervals. ; The third locking pin 3121 and the fourth locking pin 3122 can be arranged at intervals; by arranging the first locking pin 3111, the second locking pin 3112, the third locking pin 3121, and the fourth locking pin 3122, when the first mass unit 11 or the second mass unit 12 is subjected to external impact, the vibration and stress can be transmitted to the spring element assembly 03 through four positions, so that when the spring element assembly 03 is subjected to external impact, the stress on the first locking pin 3111, the second locking pin 3112, the third locking pin 3121, and the fourth locking pin 3122 can be adjusted according to the size of the impact, thereby further ensuring that each position of the spring element assembly 03 is subjected to uniform force.

[0053] The spring assembly 03 may further include an avoidance unit 33; Figure 8As shown, the avoidance unit 33 may include a first avoidance groove 332 and a second avoidance groove 333; the first connecting piece 3221, the second connecting piece 3222, the first engaging foot 3111, and the second engaging foot 3112 form the first avoidance groove 332; the third connecting piece 3223, the fourth connecting piece 3224, the third engaging foot 3121, and the fourth engaging foot 3122 may form the second avoidance groove 333. By providing the first avoidance groove 332 and the second avoidance groove 333, the weight of the spring assembly 03 is reduced, and the uneven weight distribution of the damper is prevented, thereby affecting the shock absorption effect. In other embodiments, such as Figure 7 As shown, the avoidance unit 33 may include an avoidance hole 331 , a first avoidance groove 332 and a second avoidance groove 333 , so as to further reduce the weight of the spring assembly 03 .

[0054] In this embodiment, the damper may include a plurality of spring leaf assemblies 03; the plurality of spring leaf assemblies 03 may be arranged at circumferential intervals along the outer peripheral side of the first mass unit 11, so as to ensure the dynamic balance of the damper during rotation, prevent vibration caused by uneven distribution of the spring leaf assemblies 03 on the damper, and ensure the shock absorbing performance of the damper.

[0055] In the present embodiment, a plurality of spring clip assemblies 03 in a first engaged state and a plurality of spring clip assemblies 03 in a second engaged state are alternately arranged in sequence along the circumference of the first mass unit 11, thereby ensuring that the number of contact positions between the spring clip assembly 03 and the first mass unit 11 and the second mass unit 12 is relatively uniform, so that the first mass unit 11 and the second mass unit 12 can adjust the stress on each contact point of the spring clip assembly 03, ensuring uniform force at each position of the spring clip assembly 03, and further ensuring the dynamic balance of the damper during rotation, preventing vibration caused by uneven force at each position of the spring clip assembly 03 on the damper, and ensuring the shock absorbing performance of the damper.

[0056] In this embodiment, the second elastic bodies 22 on both sides of the spring assembly 03 can be connected through the avoidance hole 331, so that when the second elastic body 22 on the inner side of the spring assembly 03 is squeezed, the second elastic body 22 can be deformed toward the outside of the spring assembly 03 through the avoidance hole 331, thereby ensuring that the force at each position of the second elastic body 22 is uniform, preventing vibration caused by uneven force at each position of the second elastic body 22, and ensuring the shock absorbing performance of the damper.

[0057] In this embodiment, the second elastic body 22 on both sides of the spring element assembly 03 can be connected through the first avoidance groove 332 and the second avoidance groove 333, so that when the second elastic body 22 on the inner side of the spring element assembly 03 is squeezed, the second elastic body 22 can be deformed toward the outside of the spring element assembly 03 through the first avoidance groove 332 or the second avoidance groove 333, thereby ensuring that the force at each position of the second elastic body 22 is uniform, preventing vibration caused by uneven force at each position of the second elastic body 22, and ensuring the shock absorbing performance of the damper.

[0058] In this embodiment, the first mass unit 11 may include a connection hole 112; the connection hole 112 may penetrate the first mass unit 11; the first elastic body 21 and the second elastic body 22 may be connected through the connection hole 112, thereby further preventing the first mass unit 11 from being relatively displaced with the first elastic body 21 and the second elastic body 22 when vibrated, thereby ensuring the stability of the first mass unit 11. At the same time, the contact area between the first elastic body 21 and the second elastic body 22 may be increased, ensuring that the first elastic body 21 and the second elastic body 22 are evenly stressed, preventing vibration caused by uneven stress at various positions of the damper, and ensuring the shock absorption performance of the damper.

[0059] This embodiment discloses a transmission shaft, which may include a damper according to any of the above embodiments, and may include:

[0060] Axle 04 can transmit the power of the vehicle so that the power can be transmitted to the driving wheels.

[0061] The first elastic body 21 can be sleeved on the shaft body 04; the inner circumferential wall of the first elastic body 21 can abut against the outer circumferential wall of the shaft body 04, so that the vibration generated during the power transmission of the shaft body 04 can be transmitted to the damper through the first elastic body 21, so that the damper can play a shock-absorbing role on the transmission shaft.

[0062] The transmission shaft includes a second damping state; as Fig.10 As shown, the second damping state includes the vibration generated by the shaft 04 causing the first mass unit 11 and the second mass unit 12 to generate a force on the spring unit 32 and the second elastic body 22, causing the spring unit 32 and the second elastic body 22 to deform. The spring unit 32 and the second elastic body 22 are deformed together, so that the spring unit 32 and the second elastic body 22 jointly bear the vibration and stress during the use of the damper, reducing fatigue damage to the second elastic body 22, thereby increasing the service life of the damper.

[0063] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A damper, characterized in that: The damper comprises: A mass component, the mass component comprises a first mass unit and a second mass unit; the first mass unit is annular; the second mass unit is annular; the second mass unit is sleeved on the outer circumference of the first mass unit; the first mass unit and the second mass unit are spaced apart; An elastic component, the elastic component comprising a first elastic body and a second elastic body; the first elastic body is annular; the second elastic body is annular; the outer peripheral wall of a part of the first elastic body is fixedly connected to the inner peripheral wall of the first mass unit; the inner peripheral wall of the second elastic body is fixedly connected to the outer peripheral wall of the first mass unit; the outer peripheral wall of the second elastic body is fixedly connected to the inner peripheral wall of the second mass unit; the second elastic body is arranged in the interval area between the first mass unit and the second mass unit; At least one spring element assembly, the spring element assembly comprising a snap-fit ​​unit and a spring element unit, the snap-fit ​​unit being fixedly connected to the spring element unit; the snap-fit ​​unit being detachably connected to the first mass unit and part of the spring element unit being in contact with the second mass unit; and / or the snap-fit ​​unit being detachably connected to the second mass unit and part of the spring element unit being in contact with the first mass unit; The damper includes a first damping state; the first damping state includes the first mass unit and the second mass unit generating a force on the spring unit and the second elastic body so that the spring unit and the second elastic body are deformed; The clamping unit includes a first clamping module and a second clamping module; the first clamping module is fixedly connected to one end of the spring unit, and the second clamping module is fixedly connected to the other end of the spring unit.

2. A damper according to claim 1, characterized in that: The first mass unit includes a first body and a plurality of first engaging holes; the spring assembly includes a first engaging state; the first engaging state includes one first engaging hole abutting against the first engaging module, and one first engaging hole abutting against the second engaging module.

3. A damper according to claim 1, characterized in that: The second mass unit includes a second body and a plurality of second engaging holes; the spring assembly includes a second engaging state; the second engaging state includes one second engaging hole abutting against the first engaging module, and one second engaging hole abutting against the second engaging module.

4. A damper according to claim 2 or 3, characterized in that: The spring element assembly further includes a avoidance unit; the avoidance unit includes a avoidance hole; the avoidance hole is arranged on the spring element unit; and the avoidance hole penetrates the spring element unit.

5. A damper according to claim 2 or 3, characterized in that: The spring sheet unit further includes a spring sheet module and a connecting module; the connecting module includes a first connecting sheet, a second connecting sheet, a third connecting sheet and a fourth connecting sheet; one end of the first connecting sheet is fixedly connected to the first end of the spring sheet module; one end of the second connecting sheet is fixedly connected to the first end of the spring sheet module; one end of the third connecting sheet is fixedly connected to the second end of the spring sheet module; one end of the fourth connecting sheet is fixedly connected to the second end of the spring sheet module; the first connecting sheet and the second connecting sheet are spaced apart; the third connecting sheet and the fourth connecting sheet are spaced apart; The first engaging module includes a first engaging foot and a second engaging foot; the second engaging module includes a third engaging foot and a fourth engaging foot; one end of the first connecting piece away from the spring module is fixedly connected to the first engaging foot; one end of the second connecting piece is fixedly connected to the second engaging foot; one end of the third connecting piece is fixedly connected to the third engaging foot; one end of the fourth connecting piece is fixedly connected to the fourth engaging foot; the first engaging foot and the second engaging foot are arranged at intervals; the third engaging foot and the fourth engaging foot are arranged at intervals; The spring assembly also includes an avoidance unit; the avoidance unit includes a first avoidance groove and a second avoidance groove; the spacing area between the first connecting piece, the second connecting piece, the first locking foot, and the second locking foot forms a first avoidance groove; the spacing area between the third connecting piece, the fourth connecting piece, the third locking foot, and the fourth locking foot forms a second avoidance groove.

6. A damper according to claim 2 or 3, characterized in that: The damper includes a plurality of spring sheet assemblies; the plurality of spring sheet assemblies are circumferentially spaced apart along the outer circumference of the first mass unit.

7. A damper according to claim 6, characterized in that: The plurality of spring sheet assemblies in the first engaging state and the plurality of spring sheet assemblies in the second engaging state are alternately and sequentially arranged along the circumference of the first mass unit.

8. A damper according to claim 4, characterized in that: The second elastic bodies on both sides of the spring assembly are connected through avoidance holes.

9. A damper according to claim 5, characterized in that: The second elastic bodies on both sides of the spring assembly are connected through the first avoidance groove and the second avoidance groove.

10. A damper according to claim 1, characterized in that: The first mass unit includes a connecting hole; the connecting hole passes through the first mass unit; the first elastic body and the second elastic body are connected through the connecting hole.

11. A transmission shaft, characterized in that: The transmission shaft comprises a damper as claimed in any one of claims 1 to 10, and the transmission shaft further comprises: Axis body; The first elastic body is sleeved on the shaft body; the inner peripheral wall of the first elastic body abuts against the outer peripheral wall of the shaft body; The transmission shaft includes a second damping state; the second damping state includes the vibration generated by the shaft body causing the first mass unit and the second mass unit to generate a force on the spring unit and the second elastic body causing the spring unit and the second elastic body to deform.

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