Vibration reduction device and vibration reduction clutch

Abstract

The embodiment of the present invention provides a vibration damping device and a vibration damping clutch, the device comprising: an outer cover, an elastic body, an inner ring and a sealing cover plate; the outer cover is a hollow columnar structure with a closed surface at one end, and a center hole is provided at the center of the closed surface; the elastic body is a hollow columnar structure; the inner ring is a hollow columnar structure, and the outer surface of the hollow columnar structure is provided with a step platform along the circumferential direction; the sealing cover plate is a plate-like structure, and a through hole is provided at the center of the plate-like structure, and the through hole can pass through the outer side of the small end of the inner ring, but cannot pass through the outer side of the large end of the inner ring; the elastic body is placed inside the outer cover and is fitted and fastened to the inner surface of the outer cover, the inner ring is placed inside the elastic body and is fitted and fastened to the inner surface of the elastic body, and the sealing cover plate passes through the outer side of the small end of the inner ring, and is fitted and fastened to the end face of the non-closed surface in the outer cover. The scheme provided by the embodiment of the present invention can reduce the failure rate of the mechanism using the vibration damping device and increase the service life of the mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission, and in particular to a vibration reduction device and a vibration reduction clutch. Background Art

[0002] The vibration damping device is used to suppress the impact caused by vibration. The most commonly used one is the spring vibration damping device. Although the spring vibration damping device reduces the transmission of vibration or impact force from the equipment equipped with the spring vibration damping device to the supporting structure or from the supporting structure to the above equipment, the shortcomings of the spring vibration damping device itself cannot be ignored. For example, the damping of the spring itself is very small, and the transmission ratio is very large during resonance. Secondly, the material of the spring causes the steel wire to transmit vibration at high frequencies; in addition, the spring is also prone to swinging motion. The reason why the spring vibration damping device can be used on large equipment is that the space of large equipment is large, and the above shortcomings of the spring device have little effect on the large equipment. Therefore, the spring vibration damping device can be used on large equipment. However, due to the above reasons, the spring vibration damping device is not suitable for small and medium-sized equipment, such as drones. Due to the limited space of drones, the above shortcomings of the spring vibration damping device have a greater impact on small and medium-sized equipment.

[0003] Since there are few vibration reduction devices developed for small and medium-sized equipment, many small and medium-sized equipment components are not equipped with vibration reduction devices. For example, the centrifugal clutch on the drone is not equipped with a vibration reduction device. The centrifugal clutch is a clutch that can be engaged automatically without operation, and is suitable for the automatic engagement of the power unit and the reducer in the transmission system of small and medium-sized drones. Moreover, the components of the centrifugal clutch are all rigid structural parts. However, for drones with piston engines as the power unit, the vibration of the engine is directly transmitted to the transmission system of the drone through the centrifugal clutch, and then transmitted to other parts of the drone, resulting in frequent failures of some parts and connection parts of the drone, such as fractures in certain positions of the frame, and reduced life. Therefore, it is urgent to develop a vibration reduction device suitable for small and medium-sized equipment to reduce the failure rate of the mechanism and increase the life of the mechanism. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a vibration reduction device and a vibration reduction clutch, so as to reduce the failure rate of the mechanism after the vibration reduction device is applied, thereby increasing the service life of the mechanism. The specific technical solution is as follows:

[0005] A vibration damping device and a vibration damping clutch, characterized in that the vibration damping device comprises: an outer cover, an elastic body, an inner ring and a sealing cover plate;

[0006] The outer cover is a hollow columnar structure with a closed surface at one end, and a central hole is provided at the center of the closed surface;

[0007] The elastomer is in a hollow columnar structure;

[0008] The inner ring is in a hollow columnar structure, and the outer surface of the hollow columnar structure is provided with a stepped platform along the circumferential direction;

[0009] The sealing cover plate is a plate-shaped structure, wherein a through hole is provided at the center of the plate-shaped structure, and the through hole can pass through the outside of the small end of the inner ring but cannot pass through the outside of the large end of the inner ring;

[0010] The elastic body is placed inside the outer cover and is fitted and fastened to the inner surface of the outer cover, the inner ring is placed inside the elastic body and is fitted and fastened to the inner surface of the elastic body, and the sealing cover plate passes through the outer side of the small end of the inner ring and is fitted and fastened to the end surface of the outer cover that is not the closed surface.

[0011] Furthermore, a first locking position is provided on the outer surface of the inner ring along the axial direction, and a locking groove which is matched and assembled with the first locking position is provided on the inner surface of the elastic body along the axial direction.

[0012] Furthermore, the first clamping position is a convex edge of a strip structure.

[0013] Furthermore, the first clamping position is a strip structure with a rectangular cross-section, a strip structure with a trapezoidal cross-section, or a strip structure with a triangular cross-section.

[0014] Furthermore, a slot is provided on the outer surface of the elastic body along the axial direction, and a second position is provided on the inner surface of the side wall of the outer cover along the axial direction, and the second position is a position that is assembled with the slot of the elastic body.

[0015] Furthermore, at least two threaded holes are provided on the end surface of the second clamping position opposite to the closed surface, and through holes having the same diameter as the threaded holes are provided at positions of the sealing cover plate corresponding to the threaded holes.

[0016] Furthermore, the material of the elastic body is rubber.

[0017] Furthermore, a heat dissipation hole is provided on the closed surface of the outer cover, and a heat dissipation fin is provided on the outer surface of the side wall of the outer cover along the circumferential direction.

[0018] Furthermore, a heat dissipation groove penetrating the plate surface is provided on the plate surface of the sealing cover plate.

[0019] Furthermore, the elastic body is placed inside the outer cover and is bonded and fastened to the inner surface of the outer cover by an adhesive.

[0020] A vibration-reducing clutch, comprising: a vibration-reducing device and a centrifugal clutch inner body; wherein:

[0021] The vibration reduction device is a vibration reduction device described above, and the centrifugal clutch body is an assembly structure without a centrifugal clutch housing, including a cover plate, a swing block, an inner body and a friction plate;

[0022] The centrifugal clutch body is placed inside the inner ring, and the output end of the centrifugal clutch body passes through the central hole of the outer cover until it contacts the closed surface of the outer cover. The cover plate, the swing block and the centrifugal friction plate are respectively fitted with the inner surface of the inner ring.

[0023] The embodiment of the present invention provides a vibration damping device and a vibration damping clutch, the vibration damping device comprises: an outer cover, an elastic body, an inner ring and a sealing cover plate; the outer cover is a hollow columnar structure with a closed surface at one end, and a center hole is provided at the center of the closed surface; the elastic body is a hollow columnar structure; the inner ring is a hollow columnar structure, and the outer surface of the hollow columnar structure is provided with a step platform along the circumferential direction; the sealing cover plate is a plate-like structure, wherein a through hole is provided at the center of the plate-like structure, and the through hole can pass through the outer side of the small end of the inner ring, but cannot pass through the outer side of the large end of the inner ring; the elastic body is placed inside the outer cover and fits and fastens with the inner surface of the outer cover, the inner ring is placed inside the elastic body and fits and fastens with the inner surface of the elastic body, and the sealing cover plate passes through the outer side of the small end of the inner ring and fits and fastens with the end face of the non-closed surface in the outer cover. The vibration damping device reduces the failure rate of the mechanism after the vibration damping device is applied by installing the elastic body in the outer cover, thereby increasing the service life of the mechanism. Of course, any product or method implementing the present invention does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0025] Figure 1 An exploded view of a vibration reduction device provided in a first embodiment of the present invention;

[0026] Figure 2 An exploded view of a vibration reduction device provided by a second embodiment of the present invention;

[0027] Figure 3 An assembly diagram of a centrifugal clutch with an integrated vibration reduction device provided in an embodiment of the present invention;

[0028] Figure 4 An exploded view of a centrifugal clutch assembly with an integrated vibration reduction device provided in an embodiment of the present invention.

[0029] Among them, 1-outer cover, 2-elastic body, 3-inner ring, 4-sealing cover plate, 5-small pulley, 11-cover plate, 12-throw block, 13-inner body, 14-friction plate, 31-small end, 32-large end, 33-first clamping position, 34-second clamping position, 41-heat sink. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] In order to solve the problems in the prior art, an embodiment of the present invention provides a vibration reduction device and a vibration reduction clutch.

[0032] Figure 1 This is an exploded view of a vibration reduction device provided by a first embodiment of the present invention, wherein the vibration reduction device comprises: an outer cover 1, an elastic body 2, an inner ring 3 and a sealing cover plate 4;

[0033] The outer cover 1 is a hollow columnar structure with a closed surface at one end, and a central hole is provided at the center of the closed surface;

[0034] The elastic body 2 is in a hollow columnar structure;

[0035] The inner ring 3 is a hollow columnar structure, and the outer surface of the hollow columnar structure is provided with a stepped platform along the circumferential direction;

[0036] The sealing cover plate 4 is a plate-like structure, wherein a through hole is provided at the center of the plate-like structure, and the through hole can pass through from the outside of the small end 31 of the inner ring 3, but cannot pass through from the outside of the large end 32 of the inner ring 3;

[0037] The elastic body 2 is placed inside the outer cover 1 and is fitted and fastened to the inner surface of the outer cover 1, the inner ring 3 is placed inside the elastic body 2 and is fitted and fastened to the inner surface of the elastic body 2, and the sealing cover plate 4 passes through the outside of the small end 31 of the inner ring 3 and is fitted and fastened to the end face of the non-closed surface in the outer cover 1.

[0038] The outer side of the small end 31 is the side where the small end 31 faces the corresponding outer surface, and the outer side of the large end 32 is the side where the large end 32 faces the corresponding outer surface.

[0039] It is worth mentioning that the sealing cover plate 4 can play a role of axial limiting for the elastic body 2 .

[0040] As can be seen from the above, the present invention provides a vibration reduction device and a vibration reduction clutch. The vibration reduction device can reduce the failure rate of the mechanism using the vibration reduction device and increase the service life of the mechanism by installing an elastic body 2 in the outer cover 1.

[0041] In one implementation, the above-mentioned hollow columnar structure can be a hollow cylindrical structure, a hollow rectangular structure, or a hollow hexagonal prism structure. The specific shape of the hollow columnar structure is related to the actual integration of the vibration reduction device, that is, the mechanism to be vibration reduced. In other words, the shape of the hollow columnar structure needs to be determined according to the specific actual situation.

[0042] In one implementation, the inner ring 3 and the elastomer 2 may be fastened together in such a manner that the inner ring 3 is placed inside the elastomer 2 and fastened to the inner surface of the elastomer 2 by an adhesive.

[0043] The above-mentioned bonding and fastening method using an adhesive for fastening is both easy to operate and cost-effective.

[0044] In one implementation, Figures 2-3 As shown, the inner ring 3 and the elastomer 2 may be fitted and fastened in the following manner: the outer surface of the inner ring 3 is provided with a first clamping position 33 along the axial direction, and the inner surface of the elastomer 2 is provided with a clamping groove along the axial direction for fitting with the first clamping position 33 .

[0045] Among them, the number of first clamping positions 33 can be one or more, and the number of clamping grooves provided on the inner surface of the elastomer 2 is the same as the number of first clamping positions 33. The more first clamping positions 33 there are, the tighter the connection between the inner ring 3 and the elastomer 2 is, and the more stable it is. However, the number of first clamping positions 33 cannot be set too many, because the more first clamping positions 33 there are, the heavier the weight of the inner ring 3 will be, which will cause the weight of the entire device to increase and the material of the first clamping positions 33 to be wasted. Therefore, the number of first clamping positions 33 can be set according to actual conditions.

[0046] In one implementation, the first clamping position 33 can be a convex edge of a strip-shaped structure. Since the contact area between the convex edge of the strip-shaped structure and the groove provided on the inner surface of the above-mentioned elastomer 2 is large, the stress generated on the mounting surface of the first clamping position 33 is relatively small. Therefore, the first clamping position 33, i.e., the convex edge of the strip-shaped structure, is not easy to break and has a long service life.

[0047] Specifically, the first clamping position 33 can be a strip structure with a rectangular cross-section, a strip structure with a trapezoidal cross-section, or a strip structure with a triangular cross-section. All three can play the role of connecting the elastomer 2. However, if the strip structure with a trapezoidal cross-section adopts a strip structure with an inverted trapezoidal cross-section, the first clamping position 33 is more tightly and firmly connected to the slot. The so-called inverted trapezoidal strip structure is a trapezoidal strip structure with a small bottom surface fitted and connected to the inner ring 3.

[0048] In addition, if Figure 2 As shown, a heat dissipation tube may be extended from the small end 31 side of the inner ring 3 along the inner surface to achieve the purpose of heat dissipation.

[0049] In one implementation, Figure 2 As shown, the elastomer 2 and the outer cover 1 can be fitted and fastened in such a way that: a slot is provided on the outer surface of the elastomer 2 along the axial direction, and a second latching position 34 is provided on the inner surface of the side wall of the outer cover 1 along the axial direction, and the second latching position 34 is a latching position assembled with the slot of the elastomer 2.

[0050] The second latching position 34 may be a convex edge of a strip structure.

[0051] Specifically, the second clamping position 34 is a strip structure with a rectangular cross section, a strip structure with a trapezoidal cross section, or a strip structure with a triangular cross section;

[0052] It should be noted that the second latch position 34 and the first latch position 33 may have the same structure or different structures, but both have the same function. For the description of the second latch position 34, please refer to the above description of the first latch position 33, which will not be repeated here.

[0053] In one implementation, the elastic body 2 and the outer cover 1 may be fastened in a manner that the elastic body 2 is placed inside the outer cover 1 and fastened to the inner surface of the outer cover 1 by bonding with an adhesive.

[0054] Likewise, the above-mentioned bonding and fastening using adhesive for fastening is both easy to operate and cost-effective.

[0055] It is worth mentioning that when the inner ring 3 and the elastomer 2 are fastened by adhesive, the elastomer 2 and the outer cover 1 can be fastened by adhesive bonding, or by second clamping position 34 and slot assembly fastening; when the inner ring 3 and the elastomer 2 are fastened by first clamping position 33 and slot assembly fastening, the elastomer 2 and the outer cover 1 can be fastened by adhesive bonding, or by second clamping position 34 and slot assembly fastening.

[0056] In one implementation, at least two threaded holes are provided on the end surface of the second clamping position 34 opposite to the closed surface, and at least two through holes having the same diameter as the threaded holes are provided on the plate surface of the sealing cover plate 4 at positions corresponding to the threaded holes.

[0057] It should be noted that the number of threaded holes can be the same as the number of the second clamping positions 34 mentioned above, or can be less than the number of the second clamping positions 34. That is to say, not all second clamping positions 34 need to be provided with threaded holes, and the number of threaded holes set for the purpose of fitting and fastening can be achieved.

[0058] After the mechanism using the vibration damping device is installed in cooperation with the vibration damping device, at least two or more screws can be used to connect the holes on the sealing cover plate 4 with the threaded holes of the outer cover 1 respectively.

[0059] This embodiment adopts a threaded connection method to achieve the purpose of fastening the outer cover 1 and the sealing cover plate 4 simply and firmly.

[0060] It is worth mentioning that after the mechanism using the vibration reduction device is installed in cooperation with the vibration reduction device, the edge of the sealing cover plate 4 can also be welded to the part where the outer cover 1 is in contact, so as to achieve the purpose of fastening.

[0061] In one implementation, the elastic body 2 may be made of a material having elastic properties, such as rubber.

[0062] In order to reduce the heat generated by the mechanism of the vibration reduction device integrated with the embodiment of the present invention during long-term operation and extend the life of the mechanism, in one implementation, a heat dissipation hole can be provided on the closed surface of the outer cover 1, and a heat sink 41 can also be provided on the outer surface of the side wall of the outer cover 1 along the circumferential direction; wherein, the heat sink 41 on the side wall of the outer cover 1 increases the heat dissipation area, thereby achieving the purpose of heat dissipation, and at the same time, the heat sink 41 of the outer cover 1 can also increase the moment of inertia to make the vibration tend to be stable. At least one heat dissipation groove penetrating the plate surface can also be provided on the plate surface of the sealing cover plate 4 to further achieve the purpose of heat dissipation.

[0063] Figure 4 The structure diagram of a vibration-reducing clutch is shown in FIG. 1 , wherein the vibration-reducing clutch comprises: a vibration-reducing device and a centrifugal clutch inner body; wherein:

[0064] The vibration reduction device used in the centrifugal clutch is the vibration reduction device described above, and the centrifugal clutch body is an assembly structure without the centrifugal clutch housing, including a cover plate 11, a swing block 12, an inner body 13 and a friction plate 14;

[0065] The centrifugal clutch body is placed inside the inner ring 3, and the output end of the centrifugal clutch body passes through the center hole of the outer cover 1 until it contacts the closed surface of the outer cover 1, and the cover plate 11, the swing block 12 and the centrifugal friction plate 14 are respectively fitted with the inner surface of the inner ring 3.

[0066] It can be seen that the vibration-damping clutch provided by the embodiment of the present invention can reduce the impact of vibration on the service life of the centrifugal clutch because the vibration-damping device is integrated.

[0067] The first clamping position 33 and the second clamping position 34 of the vibration reduction device can both be strip structures with rectangular cross-sections, and at least two threaded holes are provided on the outer end surfaces, and the sealing cover plate 4 is provided with at least two through holes having the same diameter as the threaded holes on the plate surface at positions corresponding to the threaded holes;

[0068] It can be seen that a centrifugal clutch with integrated vibration reduction device, i.e., a vibration reduction centrifugal clutch, is installed on a small or medium-sized unmanned aerial vehicle, and the power output end of the engine crankshaft is directly interference-connected with the inner body 13 of the centrifugal clutch. During the rotation, the inner body 13 of the centrifugal clutch drives the clutch block 12 and the friction plate 14 of the centrifugal clutch to rotate at the same speed. In the embodiment of the present invention, when the engine speed reaches 2100r / min, the clutch block 12 exerts pressure on the friction plate under the action of centrifugal force, and then the friction plate 14 of the centrifugal clutch meshes with the inner ring 3 through friction under the action of centrifugal force, and the inner ring 3 outputs power to the elastomer 2 through tooth meshing, and the elastomer 2 then outputs power to the outer cover 1 through tooth meshing. In the process of this power transmission, the engine crankshaft The torsional vibration of the shaft is reduced and absorbed by the elastic body 2, so that the power transmitted to the outer cover 1 is stable. The outer cover 1 increases the moment of inertia of the outer cover 1 through its own structural mass distribution and the heat sink 41 arranged on the outermost ring of the outer cover 1, thereby reducing the torsional vibration. At the same time, due to the integrated vibration reduction device, the overall weight of the centrifugal clutch is increased. According to Newton's second law, when subjected to the same force, the radial runout is reduced, so that the vibration transmitted to the small pulley 5 connected to the centrifugal clutch is reduced, and the power transmission system is stable and reliable. Therefore, under the dual effects of the moment of inertia and the elastic body 2, the outer cover 1 rotates steadily, and the outer cover 1 outputs power to the small pulley 5 through bolt connection. The vibration output from the engine to the small pulley 5 is suppressed and absorbed, ensuring that the small pulley 5 and the subsequent transmission system operate smoothly, safely and reliably. Among them, the heat sink 41 and the small end 31 side of the inner ring 3 can also play a role in timely dissipating the heat generated by the elastic body 2 during the vibration absorption process to the ambient air, thereby increasing the life of the centrifugal clutch.

[0069] In specific applications, the vibration acceleration of the corresponding position of the UAV was measured using an acceleration sensor, which also confirmed the effectiveness of the centrifugal clutch with an integrated vibration damping device. At the same time, the centrifugal clutch with an integrated vibration damping device is not only simple in structure, but also convenient, practical, safe and reliable.

[0070] In addition to being applied to centrifugal clutches, the present invention can also be applied to other clutches or transmission mechanisms for transmitting axial power. For example, when applied to a transmission mechanism for transmitting axial power, the first latching position 33 and the second latching position 34 also adopt a rectangular strip structure.

[0071] The transmission mechanism is placed inside the inner ring 3 , the output end of the transmission mechanism passes through the central hole of the outer cover 1 until it contacts the closed surface of the outer cover 1 , and the end face of the input end of the transmission mechanism fits with the end face of the sealing cover plate 4 .

[0072] As can be seen from the above, the vibration reduction device provided in the embodiment of the present invention can not only reduce the failure rate of the mechanism after using the vibration reduction device, but also improve the life of the mechanism by installing the elastomer 2 in the outer cover 1 and using the elastomer 2 and damping to reduce the transmission of torsional vibration. At the same time, the heat sink provided on the outer cover 1 can achieve the purpose of heat dissipation and increase the moment of inertia, so that the movement of the mechanism after the vibration reduction device is applied tends to be stable. The heat dissipation grooves provided in the sealing surface of the sealing cover plate 4 and the outer cover 1 can achieve the purpose of heat dissipation and further extend the service life of the mechanism after the vibration reduction device is used.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0074] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A vibration reduction device, It is characterized in that The vibration reduction device comprises: an outer cover (1), an elastic body (2), an inner ring (3) and a sealing cover plate (4); The outer cover (1) is a hollow columnar structure with a closed surface at one end, and a central hole is provided at the center of the closed surface; The elastic body (2) has a hollow columnar structure; The inner ring (3) is in the form of a hollow columnar structure, and the outer surface of the hollow columnar structure is provided with a stepped platform along the circumferential direction; The sealing cover plate (4) is in a plate-like structure, wherein a through hole is provided at the center of the plate-like structure, and the through hole can pass through the outside of the small end (31) of the inner ring (3) but cannot pass through the outside of the large end (32) of the inner ring (3); The elastic body (2) is placed inside the outer cover (1) and is fitted and fastened to the inner surface of the outer cover (1); the inner ring (3) is placed inside the elastic body (2) and is fitted and fastened to the inner surface of the elastic body (2); the sealing cover plate (4) passes through the outside of the small end (31) of the inner ring (3) and is fitted and fastened to the end surface of the outer cover (1) that is not the closed surface; The outer surface of the inner ring (3) is provided with a first latching position (33) along the axial direction, and the inner surface of the elastic body (2) is provided with a latching groove along the axial direction for fitting with the first latching position (33); the outer surface of the elastic body (2) is provided with a latching groove along the axial direction, and the inner surface of the side wall of the outer cover (1) is provided with a second latching position (34) along the axial direction, and the second latching position (34) is a latching position for fitting with the latching groove of the elastic body (2); Or the inner ring (3) is placed inside the elastic body (2) and is fastened to the inner surface of the elastic body (2) by means of an adhesive; the outer surface of the elastic body (2) is provided with a groove along the axial direction, and the inner surface of the side wall of the outer cover (1) is provided with a second clamping position (34) along the axial direction, and the second clamping position (34) is a clamping position that is assembled with the clamping groove of the elastic body (2); Or the inner ring (3) is placed inside the elastomer (2) and is fastened to the inner surface of the elastomer (2) by means of an adhesive; the elastomer (2) is placed inside the outer cover (1) and is fastened to the inner surface of the outer cover (1) by means of an adhesive.

2. The vibration damping device according to claim 1, It is characterized in that The first clamping position (33) is a convex edge in a strip-shaped structure.

3. The vibration damping device according to claim 2, It is characterized in that The first clamping position (33) is a strip-shaped structure with a rectangular cross-section, a strip-shaped structure with a trapezoidal cross-section, or a strip-shaped structure with a triangular cross-section.

4. The vibration reduction device according to claim 1, It is characterized in that At least two threaded holes are provided on the end surface of the second clamping position (34) opposite to the closed surface, and a through hole having the same diameter as the threaded hole is provided at a position of the sealing cover plate (4) corresponding to the threaded holes.

5. The vibration reduction device according to claim 1, It is characterized in that The material of the elastic body (2) is rubber.

6. The vibration reduction device according to any one of claims 1 to 5, It is characterized in that The closed surface of the outer cover (1) is provided with heat dissipation holes, and the outer surface of the side wall of the outer cover (1) is provided with heat dissipation fins (41) along the circumferential direction.

7. The vibration reduction device according to claim 1, It is characterized in that The sealing cover plate (4) is provided with a heat dissipation groove penetrating the plate surface.

8. A vibration-reducing clutch, It is characterized in that The damping clutch comprises: a damping device and a centrifugal clutch inner body; wherein, The vibration reduction device is a device as claimed in any one of claims 1 to 7, and the centrifugal clutch body is an assembly structure without a centrifugal clutch housing, comprising a cover plate (11), a throw block (12), an inner body (13) and a friction plate (14); The centrifugal clutch body is placed inside the inner ring (3), and the output end of the centrifugal clutch body passes through the central hole of the outer cover (1) until it contacts the closed surface of the outer cover (1), and the cover plate (11), the swing block (12) and the centrifugal friction plate (14) are respectively fitted with the inner surface of the inner ring (3).

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