Torsional shock absorption damping power output device and harvester

Abstract

The utility model relates to a torsional shock absorption damping power output device and a harvester, the damping power output device comprises a driving disc assembly, an outer connecting disc and a disc hub, and the driving disc assembly is coaxially and fixedly sleeved on the disc hub; the outer connecting disc is coaxially distributed at one end of the disc hub and is connected with the driving disc assembly; a damping shock absorption mechanism is installed on the disc hub, and a pre-shock absorption mechanism is installed between the disc hub and the outer connecting disc. The utility model has the beneficial effects that the structure is simple, the design is reasonable, the coupling adopts a spring damping coupling, damping and buffering are realized while dynamic power is transmitted, and the power transmission is more stable; the coupler shock absorber is provided with a pre-shock-absorption structure, a small-rigidity spring is adopted for shock absorption in pre-shock-absorption, the shock absorption function within a certain range can be achieved, and the abnormal idling sound of an engine is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of power output, in particular to a torsion vibration damping power output device and a harvester. Background Art

[0002] At present, the power output coupling of harvesting machinery on the market uses a plum blossom elastic coupling with an active disk and a passive disk to transmit the engine power to the working parts of the whole machine. Among them, the active disk is connected to the engine flywheel, and the passive disk is connected to the power output shaft through a cone surface. The plum blossom elastic coupling cooperates with the active and passive disks to realize power transmission. This structure has the following defects:

[0003] 1. The plum blossom elastic coupling used in harvesters is made of nylon material. The material is deformed by temperature, resulting in unstable size. The reason is: in summer, the temperature is high, and the actual size is larger than the theoretical size, which makes assembly difficult; in winter, the temperature is low, and the actual size is smaller than the theoretical size, which makes assembly easy. However, after assembly, there is a gap between the active and passive disks, which causes the plum blossom elastic coupling to knock against the active and passive disks when the engine is idling, producing abnormal noise.

[0004] 2. The plum blossom elastic coupling is limited by the material and has poor wear resistance. The transmitted power is caused by the damage of the plum blossom elastic coupling. When the wear reaches a certain level, there is a gap between the coupling and the active and passive disks, which causes the plum blossom elastic coupling to knock against the active and passive disks and produce abnormal noise when the engine is idling. Utility Model Content

[0005] The utility model provides a torsion vibration damping power output device and a harvester, aiming to solve the problems in the prior art.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A torsional vibration damping power output device comprises an active disc assembly, an external connecting disc and a disc hub, wherein the active disc assembly is coaxially fixedly sleeved on the disc hub; the external connecting disc is coaxially distributed at one end of the disc hub and connected to the active disc assembly; a damping vibration absorbing mechanism is installed on the disc hub, and a pre-vibration absorbing mechanism is installed between the disc hub and the external connecting disc.

[0008] The beneficial effects of the utility model are as follows: the utility model has a simple structure and a reasonable design; the coupling adopts a spring shock-absorbing coupling, which can realize shock absorption and buffering while transmitting dynamic force, and the power transmission is more stable; the coupling shock absorber has a pre-shock-absorbing structure, and the pre-shock-absorbing adopts a small stiffness spring shock-absorbing structure, which can realize the shock-absorbing function within a certain range to eliminate abnormal noise at engine idling.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the active disk assembly includes an active disk and an inner disk, the active disk and the inner disk are coaxially fixedly mounted on the disk hub, and the inner disk is located between the active disk and the outer connecting disk, and the inner disk is connected to the outer connecting disk.

[0011] The beneficial effects of adopting the above further solution are that the active disk assembly has a simple structure, reasonable arrangement and convenient assembly.

[0012] Furthermore, the damping shock absorbing mechanism includes a plurality of torsion springs, and a plurality of penetrating mounting holes are evenly spaced along the circumference of the disc hub, and the plurality of torsion springs are respectively mounted at the plurality of mounting holes.

[0013] The beneficial effect of adopting the above further solution is that during power transmission, multiple torsion springs can be used to transmit torque and multiple torsion springs can also be used to achieve shock absorption, which has multiple functions.

[0014] Furthermore, the active disk, the inner disk and the outer connecting disk are provided with a plurality of pairs of openings, and both sides of the plurality of torsion springs extend to the plurality of pairs of openings respectively and fit with the hole walls of the plurality of pairs of openings respectively.

[0015] The beneficial effects of adopting the above further solution are simple structure, multiple torsion springs can be fixed through multiple pairs of openings, assembly is convenient, and stability is good.

[0016] Furthermore, the shock absorbing mechanism further comprises a spline sleeve, the outer connecting disc is coaxially fixedly sleeved on the spline sleeve, and the disc hub is coaxially fixedly sleeved on the spline sleeve.

[0017] The beneficial effect of adopting the above further solution is that the spline sleeve can be used to realize the connection between the various components, which is convenient for assembly.

[0018] Furthermore, the pre-shock absorption mechanism includes an active plate, a passive plate and a connecting plate, the connecting plate is coaxially fixedly sleeved on the spline sleeve, and is located between the outer connecting disk and the disk hub; the connecting plate is provided with a plurality of through openings evenly spaced along its circumference, and shock absorbing springs are respectively installed at the plurality of openings; the active plate and the passive plate are respectively sleeved on the spline sleeve, and are respectively located between the disk hub and the connecting plate, and between the connecting plate and the outer connecting disk; the active plate and the passive plate are provided with a plurality of pairs of fixing holes evenly spaced along their own circumference, and the two sides of the plurality of shock absorbing springs extend into the plurality of pairs of fixing holes respectively.

[0019] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, and easy assembly between various components; in addition, by using multiple shock-absorbing springs for shock absorption, the shock absorption function within a certain range (±4°) can be achieved to eliminate abnormal noise when the engine is idling.

[0020] Furthermore, nylon plates are respectively installed between the active plate and the connecting plate and between the passive plate and the connecting plate, and annular disc springs are respectively sleeved between the inner disk and the disk hub and / or between the passive plate and the corresponding nylon plate.

[0021] The beneficial effects of adopting the above further scheme are simple structure, reasonable design, and the use of nylon plates can further play a role in buffering and shock absorption, further improving the shock absorption effect;

[0022] In addition, the two annular disc springs can respectively prevent the axial movement of the inner disc and the corresponding nylon plate, further ensuring the stability of the assembly of each component.

[0023] Furthermore, the inner disk is fixedly connected to the active disk, and an edge of the inner disk is connected to the outer connecting disk.

[0024] The beneficial effect of adopting the above further solution is that the inner disk, the active disk and the outer connecting disk are easy to assemble.

[0025] Furthermore, the edge of the outer connecting disk is evenly spaced along its circumference with a plurality of penetrating bayonet holes, and the edge of the inner disk is evenly spaced along its circumference with a plurality of clamping blocks, and the plurality of clamping blocks can be respectively inserted into or withdrawn from the plurality of bayonet holes.

[0026] The beneficial effects of adopting the above further solution are simple structure, reasonable design, detachable connection between the outer connecting disk and the inner disk by using multiple clamping blocks and multiple bayonet holes, and easy assembly.

[0027] The utility model also relates to a harvester, comprising the torsional vibration damping power output device as described above.

[0028] The beneficial effect of adopting the above-mentioned further scheme is that the utility model also provides a harvester with a simple structure and reasonable design. The coupling adopts a spring shock-absorbing coupling, which can achieve shock absorption and buffering while transmitting dynamic force, and the power transmission is smoother; the coupling shock absorber has a pre-shock-absorbing structure, and the pre-shock-absorbing adopts a small stiffness spring shock-absorbing, which can achieve a shock-absorbing function within a certain range to eliminate abnormal noise when the engine is idling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 It is a side view of the utility model;

[0031] Figure 3 for Figure 2 Sectional view along AA direction;

[0032] Figure 4 for Figure 3 Enlarged view of B.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. External connecting disc; 2. Disc hub; 3. Active disc; 4. Inner disc; 5. Torsion spring; 6. Spline sleeve; 7. Active plate; 8. Passive plate; 9. Connecting plate; 10. Nylon plate; 11. Annular disc spring; 12. Block; 13. Power output assembly. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] Example 1

[0040] like Figures 1 to 4As shown, this embodiment provides a torsional vibration damping power output device, including an active disc assembly, an external connecting disc 1 and a disc hub 2, wherein the active disc assembly is coaxially fixedly sleeved on the disc hub 2; the external connecting disc 1 is coaxially distributed at one end of the disc hub 2 and connected to the active disc assembly; a damping vibration absorbing mechanism is installed on the disc hub 2, and a pre-shock absorbing mechanism is installed between the disc hub 2 and the external connecting disc 1.

[0041] Preferably, in this embodiment, the active disk assembly is connected to the engine flywheel through mounting holes and bolts uniformly distributed on the circumference of the active disk to achieve power torque transmission.

[0042] In addition, the above-mentioned external connection plate 1 adopts a disc-shaped structure, and its edge is recessed to form a step to facilitate the installation of the damping and shock absorbing mechanism.

[0043] Preferably, in this embodiment, the disk hub 2 is preferably a disk-shaped structure, one end of which is provided with a cylindrical extension portion, and the active disk assembly is fixedly sleeved on the extension portion at one end of the disk hub 2.

[0044] In addition, the outer connection disk 1 is located at the other end of the disk hub 2.

[0045] This embodiment has a simple structure and a reasonable design. The coupling adopts a spring shock-absorbing coupling, which can achieve shock absorption and buffering while transmitting dynamic force, making power transmission more stable. The coupling shock absorber has a pre-shock-absorbing structure, and the pre-shock-absorbing adopts a small stiffness spring shock-absorbing structure, which can achieve a shock-absorbing function within a certain range to eliminate abnormal noise at engine idling.

[0046] Example 2

[0047] On the basis of Example 1, in this embodiment, the active disk assembly includes an active disk 3 and an inner disk 4, the active disk 3 and the inner disk 4 are coaxially fixedly mounted on the disk hub 2, and the inner disk 4 is located between the active disk 3 and the external connecting disk 1, and the inner disk 4 is connected to the external connecting disk 1.

[0048] The active disk assembly has a simple structure, reasonable arrangement and is easy to assemble.

[0049] Preferably, in this embodiment, the active disk 3 and the inner disk 4 are preferably disk-shaped structures, and the diameter of the active disk 3 is larger than the diameter of the inner disk 4 , and the diameter of the active disk 3 is larger than the diameter of the outer connection disk 1 .

[0050] In addition, the driving disc 3 is connected to the engine flywheel.

[0051] Example 3

[0052] On the basis of Example 2, in this embodiment, the damping shock absorbing mechanism includes a plurality of torsion springs 5, and a plurality of penetrating mounting holes are evenly spaced along the circumference of the disc hub 2, and the plurality of torsion springs 5 ​​are respectively installed at the plurality of mounting holes.

[0053] During power transmission, multiple torsion springs 5 ​​can be used to transmit torque and also to achieve shock absorption, which has multiple functions.

[0054] Example 4

[0055] On the basis of Example 3, in this embodiment, a plurality of pairs of openings are relatively provided on the active disk 3, the inner disk 4 and the outer connecting disk 1, and both sides of the plurality of torsion springs 5 ​​extend to the plurality of pairs of openings respectively and fit with the hole walls of the plurality of pairs of openings respectively.

[0056] This solution has a simple structure, and multiple torsion springs 5 ​​are fixed through multiple pairs of openings, so it is easy to assemble and has good stability.

[0057] Preferably, in this embodiment, the above-mentioned multiple mounting holes and multiple pairs of openings are preferably arc-shaped holes, which extend along the circumference of the corresponding structures (the hub 2, the active disk 3, the inner disk 4 and the outer connecting disk 1).

[0058] Preferably, in this embodiment, the size of the plurality of mounting holes is greater than or equal to the size of the plurality of torsion springs 5 ​​, and the size of the plurality of pairs of openings is smaller than the size of the torsion springs 5 ​​, so as to fix the torsion springs 5 ​​.

[0059] Example 5

[0060] On the basis of any one of Examples 3 to 4, in this embodiment, the shock absorbing mechanism further includes a spline sleeve 6, the outer connecting disk 1 is coaxially fixedly sleeved on the spline sleeve 6, and the disk hub 2 is coaxially fixedly sleeved on the spline sleeve 6, and there is no relative displacement between the two.

[0061] This solution utilizes the spline sleeve 6 to achieve connection between various components, and is easy to assemble.

[0062] Preferably, the present embodiment further comprises a power output assembly 13, which is connected to the spline sleeve 6 via a spline, and the power is transmitted from the engine to the power output assembly 13 via the entire torsional vibration damping power output device and then output.

[0063] Example 6

[0064] On the basis of Example 5, in this embodiment, the pre-shock absorption mechanism includes an active plate 7, a passive plate 8 and a connecting plate 9, and the connecting plate 9 is coaxially fixedly sleeved on the spline sleeve 6, and is located between the outer connecting disk 1 and the disk hub 2; the connecting plate 9 is provided with a plurality of through openings evenly spaced along its circumference, and shock absorbing springs are respectively installed at the plurality of openings; the active plate 7 and the passive plate 8 are respectively sleeved on the spline sleeve 6, and are respectively located between the disk hub 2 and the connecting plate 9 and between the connecting plate 9 and the outer connecting disk 1; the active plate 7 and the passive plate 8 are provided with a plurality of pairs of fixing holes evenly spaced along their own circumference, and the two sides of the plurality of shock absorbing springs extend into the plurality of pairs of fixing holes respectively.

[0065] This solution has a simple structure, reasonable design, and convenient assembly between various components; in addition, by using multiple shock-absorbing springs for shock absorption, a shock absorption function within a certain range (±4°) can be achieved to eliminate abnormal noise when the engine is idling.

[0066] Preferably, in this embodiment, the connecting plate 9 and the spline sleeve 6 are integrally formed.

[0067] In addition, the active plate 7, the passive plate 8 and the connecting plate 9 are preferably disc-shaped structures respectively.

[0068] Moreover, the active plate 7 is fixedly connected to the disk hub 2 by bolts.

[0069] Preferably, in this embodiment, the size of the above-mentioned multiple openings is equal to or greater than the size of the multiple shock-absorbing springs, and the size of the multiple pairs of fixing holes is smaller than the size of the multiple shock-absorbing springs. The design is reasonable to ensure the stability of the assembly of the multiple shock-absorbing springs.

[0070] The hub 2 is forged from high-quality alloy structural steel and is provided with evenly distributed mounting holes around the center for mounting a torsion spring. The contact portion with the spring is surface treated to increase hardness and wear resistance. The spring here plays a role in transmitting torque and reducing shock. This solution adopts a double spring structure.

[0071] Based on the above solution, the plurality of torsion springs 5 ​​and the plurality of damping springs are respectively distributed perpendicularly to the axial direction of the inner disk 4 .

[0072] Example 7

[0073] On the basis of Example 6, in this embodiment, nylon plates 10 are respectively installed between the active plate 7 and the connecting plate 9 and between the passive plate 8 and the connecting plate 9, and annular disc springs 11 are respectively provided between the inner disk 4 and the disk hub 2 and / or between the passive plate 8 and the corresponding nylon plate 10.

[0074] The scheme has a simple structure and a reasonable design. The nylon plate 10 can further play a role in buffering and shock absorption, thereby further improving the shock absorption effect.

[0075] In addition, the two annular disc springs 11 can respectively prevent the inner disc 4 and the corresponding nylon plate 10 from axial movement, further ensuring the stability of the assembly of each component.

[0076] Based on the above solution, the sizes of the two nylon plates 10 may be consistent or inconsistent.

[0077] Example 8

[0078] On the basis of any one of Embodiments 2 to 7, in this embodiment, the inner disk 4 is fixedly connected to the active disk 3 , and an edge thereof is connected to the outer connection disk 1 .

[0079] The inner disk 4, the active disk 3 and the outer connecting disk 1 are easy to assemble.

[0080] Example 9

[0081] On the basis of Example 8, in this embodiment, the edge of the outer connecting disk 1 is provided with a plurality of penetrating bayonet holes evenly spaced along its circumference, and the edge of the inner disk 4 is provided with a plurality of clamping blocks 12 evenly spaced along its circumference, and the plurality of clamping blocks 12 can be respectively inserted into or withdrawn from the plurality of bayonet holes.

[0082] The solution has a simple structure and a reasonable design. The outer connecting disk 1 and the inner disk 4 are detachably connected by using a plurality of clamping blocks 12 and a plurality of bayonet ports, and the assembly is convenient.

[0083] Preferably, in this embodiment, the above-mentioned multiple blocks 12 are preferably long strip block structures, which extend along the axial direction of the inner disk 4 respectively.

[0084] In addition, a plurality of card blocks 12 are respectively formed integrally with the inner disk 4 .

[0085] Alternatively, the outer connecting plate 1 and the inner plate 4 may also be fixed by welding, but this solution is inconvenient to disassemble and assemble, and is time-consuming and labor-intensive.

[0086] Example 10

[0087] On the basis of the above-mentioned embodiments, this embodiment also provides a harvester, including the torsional vibration damping power output device as described above.

[0088] The present embodiment also provides a harvester with a simple structure and reasonable design. The coupling adopts a spring shock-absorbing coupling, which can achieve shock absorption and buffering while transmitting dynamic force, and the power transmission is smoother. The coupling shock absorber has a pre-shock-absorbing structure, and the pre-shock-absorbing adopts a small stiffness spring shock-absorbing, which can achieve a shock-absorbing function within a certain range to eliminate abnormal noise at engine idling.

[0089] The beneficial effects of the utility model are:

[0090] 1. The coupling adopts spring shock-absorbing coupling, which can realize shock absorption and buffering while transmitting dynamic force, making the power transmission more stable;

[0091] 2. The active plate of the elastic torsion damper is connected to the engine flywheel, and the internal damper is connected to the power output shaft through a spline to realize power transmission;

[0092] 3. The coupling shock absorber has a pre-shock absorption structure, which uses a small stiffness spring to absorb shock, and can achieve a certain range (±4°) of shock absorption to eliminate abnormal noise when the engine is idling;

[0093] 4. The pre-shock absorption structure is equipped with a spline sleeve, a connecting plate, a nylon disc, a shock absorbing spring, and a main and passive connecting plate (a positioning pin is welded / riveted on the active connecting plate), wherein the spline sleeve and the outer connecting plate are riveted as an integral structure, and the main and passive connecting plates are respectively located on both sides of the connecting plate and riveted as a whole (not connected to the connecting plate, but can move relative to each other), and nylon sheets are respectively provided between the main and passive connecting plates to prevent abnormal noise caused by metal friction, wherein the nylon sheet on the passive plate side is provided with a positioning pin to prevent movement;

[0094] 5. The inner spline of the spline sleeve of the pre-shock absorber mechanism cooperates with the power output spline shaft, and the outer spline cooperates with the inner spline of the disc hub. At the same time, the locating pin of the active connecting piece cooperates with the locating hole on the disc hub to play a limiting role.

[0095] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0096] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A torsional vibration damping power output device, characterized in that: The invention comprises an active disk assembly, an external connection disk (1) and a disk hub (2), wherein the active disk assembly is coaxially fixedly sleeved on the disk hub (2); the external connection disk (1) is coaxially distributed at one end of the disk hub (2) and is connected to the active disk assembly; a damping shock absorbing mechanism is installed on the disk hub (2), and a pre-shock absorbing mechanism is installed between the disk hub (2) and the external connection disk (1).

2. The torsional vibration damping power output device according to claim 1, characterized in that: The active disk assembly comprises an active disk (3) and an inner disk (4), wherein the active disk (3) and the inner disk (4) are coaxially fixedly mounted on the disk hub (2), and the inner disk (4) is located between the active disk (3) and the outer connecting disk (1), and the inner disk (4) is connected to the outer connecting disk (1).

3. The torsional vibration damping power output device according to claim 2, characterized in that: The damping shock absorbing mechanism comprises a plurality of torsion springs (5); a plurality of penetrating mounting holes are evenly spaced along the circumference of the disc hub (2); and the plurality of torsion springs (5) are respectively mounted at the plurality of mounting holes.

4. The torsional vibration damping power output device according to claim 3, characterized in that: The active disk (3), the inner disk (4) and the outer connection disk (1) are provided with a plurality of pairs of openings in a relative manner, and the two sides of the plurality of torsion springs (5) respectively extend to the plurality of pairs of openings and respectively fit with the hole walls of the plurality of pairs of openings.

5. The torsional vibration damping power output device according to claim 3, characterized in that: The shock absorbing mechanism further comprises a spline sleeve (6), the outer connecting disc (1) is coaxially fixedly sleeved on the spline sleeve (6), and the disc hub (2) is coaxially fixedly sleeved on the spline sleeve (6).

6. The torsional vibration damping power output device according to claim 5, characterized in that: The pre-shock-absorbing mechanism comprises an active plate (7), a passive plate (8) and a connecting plate (9); the connecting plate (9) is coaxially fixedly sleeved on the spline sleeve (6) and is located between the outer connecting disk (1) and the disk hub (2); the connecting plate (9) is evenly spaced along its circumference and has a plurality of through openings, and a plurality of shock-absorbing springs are respectively installed at the openings; the active plate (7) and the passive plate (8) are respectively sleeved on the spline sleeve (6) and are respectively located between the disk hub (2) and the connecting plate (9) and between the connecting plate (9) and the outer connecting disk (1); the active plate (7) and the passive plate (8) are evenly spaced along their circumference and have a plurality of pairs of fixing holes, and the two sides of the plurality of shock-absorbing springs respectively extend into the plurality of pairs of fixing holes.

7. The torsional vibration damping power output device according to claim 6, characterized in that: Nylon plates (10) are respectively installed between the active plate (7) and the connecting plate (9) and between the passive plate (8) and the connecting plate (9), and annular disc springs (11) are respectively sleeved between the inner disk (4) and the disk hub (2) and / or between the passive plate (8) and the corresponding nylon plate (10).

8. The torsional vibration damping power output device according to any one of claims 2 to 7, characterized in that: The inner disk (4) is fixedly connected to the active disk (3), and its edge is connected to the outer connection disk (1).

9. The torsional vibration damping power output device according to claim 8, characterized in that: The edge of the outer connection disk (1) is provided with a plurality of through-going bayonet holes at even intervals along its circumference, and the edge of the inner disk (4) is provided with a plurality of clamping blocks (12) at even intervals along its circumference. The plurality of clamping blocks (12) can be respectively inserted into or withdrawn from the plurality of bayonet holes.

10. A harvester, characterized in that: It comprises a torsional vibration damping power output device as described in any one of claims 1 to 9.

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