CN218844983U - Flywheel torsion-limiting shock absorber device - Google Patents

Abstract

The application discloses a flywheel torsion-limiting shock absorber device, which relates to the technical field of transmission devices of hybrid vehicles and comprises a flywheel body, a torsion-limiting shock absorber body and a reinforcing elastic piece; the torsion limiting shock absorber body comprises a flexible disc, a cover plate, a torsion limiting device and a shock absorption device; the flexible disk and the cover plate are respectively and fixedly arranged on two sides of the flywheel body, the torsion limiting device is pressed between the flywheel body and the cover plate, and the vibration damping device is fixedly connected with the torsion limiting device, so that the flywheel body and the torsion limiting vibration damper body are integrally connected. More importantly, a reinforcing elastic piece is arranged between the flexible disk and the flywheel body to support the flexible disk, so that the strength of the whole structure is improved.

Description

Flywheel torsion-limiting shock absorber device

Technical Field

The application relates to the technical field of transmissions of hybrid vehicles, in particular to a flywheel torque-limiting shock absorber device.

Background

In the existing hybrid electric vehicle, the spacing shock absorber and the flywheel are designed in a split structure, and the design has the problems of complex structure, assembly and disassembly processes and high production cost. In order to solve the above disadvantage, a design scheme for integrally connecting a flywheel and a torque-limiting damper has been proposed in the prior art, for example, a torque-limiting flywheel damper assembly for a hybrid power system disclosed in chinese patent No. CN217440636U, but the torque-limiting flywheel damper assembly designed in this patent still has a disadvantage in terms of overall structural strength.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application aims to provide a flywheel torsion limiter damper device to solve the technical problems in the background art.

In order to achieve the technical purpose, the application provides a flywheel torsion limiting damper device which comprises a flywheel body, a torsion limiting damper body and a reinforcing elastic piece;

the torsion limiting shock absorber body comprises a flexible disc, a cover plate, a torsion limiting device and a shock absorbing device;

the flexible disk is fixedly arranged on one side of the flywheel body;

the cover plate is fixedly arranged on the other side of the flywheel body;

the torque limiting device is pressed between the flywheel body and the cover plate;

the vibration damping device is fixedly connected with the torque limiting device;

the reinforced elastic piece is arranged between the flexible disk and the flywheel body and is respectively abutted against the flexible disk and the flywheel body.

Further, the reinforcing elastic piece is a belleville spring;

the flywheel body is provided with a step which is abutted against the reinforced elastic piece.

Furthermore, the torque limiting device comprises a friction plate group, a connecting piece, a pressing gasket and a first abutting elastic piece;

the friction plate group is fixed on the connecting plate and is abutted against the flywheel body;

the pressing gasket is arranged between the friction plate group and the cover plate and is abutted against the friction plate group;

the first abutting elastic piece is arranged between the pressing gasket and the cover plate, and the first abutting elastic piece is respectively abutted against the pressing gasket and the cover plate.

Further, the vibration damper comprises a clamping disc, a vibration damping disc, a first friction damping piece, a second abutting elastic piece, a driving disc and a spline hub;

the splined hub includes a main body hub and spline teeth;

the spline teeth are integrally connected to the outer peripheral surface of the main body hub;

the driving disc is provided with spline grooves for the spline teeth to be clamped in;

a first limiting plate is fixedly mounted on one side, facing the flexible disk, of the spline groove, and a second limiting plate is fixedly mounted on the other side of the spline groove;

the splined hub is detachably mounted between the first limit plate and the second limit plate;

the clamping disc is fixedly connected with the connecting sheet;

the clamping disc, the driving disc and the vibration reduction disc are sequentially arranged along the cover plate towards the flexible disc, and are respectively provided with a plurality of circumferentially distributed spring windows;

the spring windows on the clamping discs, the spring windows on the driving discs and the spring windows on the damping discs are in one-to-one correspondence to form a plurality of circumferentially distributed spring bins;

spring seats are arranged on two sides of each spring bin;

a vibration damping elastic piece is sleeved between the spring seats of each spring bin;

the vibration reduction disc is fixedly connected with the clamping disc;

the first friction damping piece is arranged between the driving disc and the vibration reduction disc and is respectively abutted against the driving disc and the vibration reduction disc;

the second friction damping piece is arranged between the driving disc and the clamping disc, and one side of the second friction damping piece is abutted to the driving disc;

the second elastic abutting part is arranged between the second friction damping part and the clamping disc and is respectively abutted against the clamping disc and the second friction damping part.

Further, one surface of the first limiting plate facing the driving disc can be in contact with one side stop of the spline teeth;

a clamp spring groove is formed in the position, facing the inner side edge of one surface of the driving disc, of the second limiting plate;

a clamp spring is detachably mounted in the clamp spring groove;

the clamp spring can be contacted with the other side stop of the spline tooth.

Further, the first limiting plate and the second limiting plate are riveted together on the driving disc.

Furthermore, a through hole communicated with the spline hub shaft hole is formed in the center of the flexible disk;

and a plurality of bolt mounting holes are formed in the circumference of the through hole.

According to the technical scheme, the flywheel torsion limiting shock absorber device is characterized in that the flexible disk and the cover plate are fixedly arranged on two sides of the flywheel body respectively, the torsion limiting device is pressed between the flywheel body and the cover plate, and the shock absorber device is fixedly connected with the torsion limiting device, so that the flywheel body and the torsion limiting shock absorber body are integrally connected. More importantly, a reinforcing elastic piece is arranged between the flexible disk and the flywheel body to support the flexible disk, so that the strength of the whole structure is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is an overall cross-sectional view of a flywheel torque limiting damper device as provided herein;

FIG. 2 is a partial cross-sectional view of a flywheel torque limiting damper device as provided herein;

FIG. 3 is a schematic partial exploded view of a flywheel torque limiting damper arrangement as provided herein;

FIG. 4 is an overall exploded schematic view of a flywheel torque limiting damper arrangement as provided herein;

in the figure: 1. a flexible disk; 1a, bolt mounting holes; 1b, a through hole; 2. a flywheel body; 2a, a step; 3. a cover plate; 4. the first elastic abutting part; 5. compressing the gasket; 6. a friction plate set; 6a, friction plates; 7. a clamping plate; 8. a drive disc; 8a, spline grooves; 9. connecting sheets; 10. a reinforcing elastic member; 11. a vibration damping disk; 12. a vibration-damping elastic member; 12a, an outer compression spring; 12b, an inner compression spring; 13. a splined hub; 13a, a main body hub; 13b, spline teeth; 14. a first frictional damping member; 15. the second elastic abutting part; 16. a second frictional damping member; 17. connecting a gasket; 18. riveting; 19. a first limit plate; 20. a second limiting plate; 20a, a clamp spring groove; 21. and a clamp spring.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application discloses a flywheel torsion limiting damper device.

Referring to fig. 1 and 2, an embodiment of a flywheel torque-limiting damper device provided in an embodiment of the present application includes:

the flywheel body 2, the torsion limiting damper body and the reinforcing elastic piece 10.

The torsion limiting damper body comprises a flexible disk 1, a cover plate 3, a torsion limiting device and a damping device.

The flexible disk 1 is riveted on one side of the flywheel body 2, the cover plate 3 is riveted on the other side of the flywheel body 2, the torque limiting device is pressed between the flywheel body 2 and the cover plate 3, and the vibration damping device is fixedly connected with the torque limiting device.

The reinforced elastic member 10 is installed between the flexible disk 1 and the flywheel body 2, and is respectively abutted against the flexible disk 1 and the flywheel body 2.

According to the technical scheme, the flywheel torsion limiting shock absorber device is characterized in that the flexible disk 1 and the cover plate 3 are fixedly arranged on two sides of the flywheel body 2 respectively, the torsion limiting device is pressed between the flywheel body 2 and the cover plate 3, the shock absorber device is fixedly connected with the torsion limiting device, and the flywheel body 2 and the torsion limiting shock absorber body are integrally connected. More importantly, a reinforced elastic member 10 is arranged between the flexible disk 1 and the flywheel body 2 to support the flexible disk 1, so as to improve the overall structural strength.

The above is a first embodiment of the flywheel torsion-limiting damper device provided in the embodiment of the present application, and the following is a second embodiment of the flywheel torsion-limiting damper device provided in the embodiment of the present application, specifically referring to fig. 1 to 4.

The scheme based on the first embodiment is as follows:

as shown in fig. 1, the reinforcing elastic member 10 is preferably a belleville spring, and the flywheel main body 2 is provided with a step 2a abutting against the reinforcing elastic member 10 to facilitate the mounting and positioning of the reinforcing elastic member 10.

Fig. 4 shows that, further, the torque limiter structure includes a friction plate set 6, a connecting piece 9, a pressing pad 5 and a first elastic abutting member 4.

The friction plate group 6 is composed of two friction plate groups 6, the two friction plates 6a are respectively riveted on two sides of the connecting piece 9, and one side of the friction plate group 6 is abutted with the flywheel body 2. The pressing gasket 5 is arranged between the friction plate group 6 and the cover plate 3, and the annular friction surface of the pressing gasket 5 is abutted against the other side of the friction plate group 6. The first abutting elastic piece 4 is arranged between the pressing gasket 5 and the cover plate 3, and the first abutting elastic piece 4 is respectively abutted against the pressing gasket 5 and the cover plate 3; the first elastic abutting member 4 is used for applying an axial load to fix the friction plate group 6 and the pressing pad 5.

As shown in fig. 4, the vibration damping device further includes a clamping plate 7, a vibration damping plate 11, a first friction damping member 14, a second friction damping member 16, a second abutting elastic member 15, a driving plate 8 and a spline hub 13.

Spline hub 13 and driving disc 8 detachable connection, specific:

the spline hub 13 structure can be divided into a main hub 13a and spline teeth 13b, and the spline teeth 13b are integrally connected to the outer peripheral surface of the main hub 13 a. The driving disk 8 is provided with a spline groove 8a for clamping the spline teeth 13b, and the spline hub 13 and the driving disk 8 are synchronously matched in a rotating way by utilizing the matching of the spline teeth 13b and the spline groove 8 a.

With the cooperation of can dismantling between spline hub 13 and the driving-disc 8, this application has first limiting plate 19 at spline groove 8a towards one side fixed mounting of flexible dish 1, spline groove 8a opposite side fixed mounting has second limiting plate 20, spline hub 13 detachably installs between first limiting plate 19 and second limiting plate 20, it is also to utilize first limiting plate 19 and second limiting plate 20 to carry out axial spacing fixed to the spline hub 13 of installing in spline groove 8a, spline hub 13 also can be followed and is torn open out between first limiting plate 19 and the second limiting plate 20 simultaneously, realize with the cooperation of can dismantling the connection between the driving-disc 8. The spline hub 13 in the damping device is detachably connected with the driving disc 8, so that when the flywheel torsion limiting damper assembly is installed, a corresponding space can be reserved by detaching the spline hub 13 to install the flexible disc 1 on a crankshaft of a generator, and the installation between the flywheel torsion limiting damper assembly and the crankshaft can be completed quickly.

The clamping disc 7 is riveted and fixed with the connecting sheet 9 and is further fixedly connected with the torque limiting device through the connecting sheet 9.

The clamping disc 7, the driving disc 8 and the vibration reduction disc 11 are sequentially arranged along the cover plate 3 towards the flexible disc 1, and are respectively provided with a plurality of circumferentially distributed spring windows; the spring windows on the clamping discs 7, the spring windows on the driving discs 8 and the spring windows on the damping discs 11 are in one-to-one correspondence to form a plurality of circumferentially distributed spring bins; spring seats are arranged on two sides of each spring bin, a vibration damping elastic part 12 is sleeved between the spring seats of each spring bin, and the vibration damping elastic part 12 can be specifically composed of an outer compression spring 12a and an inner compression spring 12b sleeved in the outer compression spring 12a, and is not limited specifically.

The damping disc 11 is riveted and fixed with the clamping disc 7; the first friction damping member 14 is disposed between the driving plate 8 and the damping plate 11, and the first friction damping member 14 abuts against the driving plate 8 and the damping plate 11, respectively. Specifically, the first friction damping member 14 is clamped on the damping plate 11, and it can be understood that the first friction damping member 14 has a protruding structure clamped with the damping plate 11, so that a more stable installation and matching are realized, and the first friction damping member 14 plays a supporting role on the driving plate 8.

The second frictional damper 16 is provided between the drive plate 8 and the chuck plate 7, and one side of the second frictional damper 16 abuts against the drive plate 8. Specifically, the second friction damping member 16 is correspondingly clamped on the clamping disk 7, that is, a protrusion structure clamped with the clamping disk 7 is correspondingly arranged, so that more stable installation and matching are realized, and the second friction damping member 16 also plays a supporting role for the driving disk 8. The second elastic abutting member 15 is disposed between the second friction damping member 16 and the clamping disk 7, and the second elastic abutting member 15 abuts against the clamping disk 7 and the second friction damping member 16, respectively. The second elastic abutment 15 presses the second friction damper 16, the drive disc 8 and the first friction damper 14 together by applying an axial force to the second friction damper 16. In the present application, the first elastic abutting member 4 and the second elastic abutting member 15 may be both belleville springs, and are not limited in particular.

Further, as shown in fig. 3, the side of the first stopper plate 19 facing the driving disk 8 may be in contact with a side stopper of the spline teeth 13b, and it is understood that, after the first stopper plate 19 is mounted on the side of the driving disk 8, it has a portion capable of covering the edge portion of the spline groove 8a in the axial direction of the spline groove 8a, and this portion is also capable of stopping the spline teeth 13b without interfering with the main hub 13a portion, so as to realize the stopper of the spline hub 13.

The inner side edge position of the second limiting plate 20 facing the one side of the driving disc 8 is provided with a clamp spring groove 20a, a clamp spring 21 is detachably mounted in the clamp spring groove 20a, and the clamp spring 21 can be in contact with the other side stop of the spline teeth 13 b. It can be understood that, after the second limiting plate 20 is installed at the other side of the driving disc 8, it does not install under the condition of jump ring 21, can not form the backstop to spline tooth 13b on the spline hub 13, it is also that the spline hub 13 can freely pass through the second limiting plate 20, can install jump ring 21 after spline hub 13 blocks in spline groove 8a, utilize jump ring 21 to carry out spacing with spline hub 13 to the backstop that spline tooth 13b formed, and then cooperate first limiting plate 19 to fix the spline hub 13 spacing in spline groove 8 a. The clamp spring 21 is used for realizing detachable matching, the structure is simple, and the assembly and disassembly are also convenient.

As shown in fig. 3, the first limiting plate 19 and the second limiting plate 20 are preferably designed to be ring-shaped structures, so that the structural strength is better, and the installation is also convenient.

The middle through hole 1b of the first limiting plate 19 is a circular through hole 1b, and after the first limiting plate 19 is installed on the driving disc 8, the inner edge part of the first limiting plate can cover the spline shaft in the axial direction of the spline shaft, so that the stopping and limiting effects on the spline hub 13 are achieved.

Middle part through-hole 1b and the spline groove 8a looks adaptation of second limiting plate 20 compare in circular through-hole 1b design, need not be bigger with the design of jump ring groove 20a, and can be more firm reliable forms the backstop spacing to spline hub 13.

As shown in fig. 1 and 2, the first stopper plate 19 and the second stopper plate 20 are riveted together to the drive plate 8 by the rivet 18.

As shown in fig. 4, the flexible disk 1 is further provided with a through hole 1b communicating with the axial hole of the spline hub 13 at the center thereof, and a plurality of bolt mounting holes 1a are provided around the through hole 1 b. The arrangement of the bolt mounting holes 1a can realize that the flexible disk 1 is fixed on the crankshaft in a bolt mode, and the installation is convenient. Of course, other connecting holes for installation and fixation may be provided without limitation. The connection hole is provided at a position that satisfies a condition that the connection hole can be shown by a leakage space after removing the spline hub 13, or that the mounting and fixing operation can be performed by the leakage space.

Furthermore, as shown in fig. 4, a connection pad 17 is disposed on one side of the flexible disk 1 facing the cover plate 3, and avoidance holes corresponding to the bolt mounting holes 1a one-to-one are disposed on the connection pad 17. The connection gasket 17 can protect the flexible disk 1 to a certain extent, and the bolt for mounting and fixing is prevented from excessively extruding the flexible disk 1.

While the flywheel torque limiter damper apparatus provided herein has been described in detail, it will be apparent to those skilled in the art that variations may be made in the embodiments and applications without departing from the spirit and scope of the embodiments, and in view of the foregoing, the disclosure should not be interpreted as limiting the scope of the present application.

Claims (7)

1. The torsion-limiting damper device for the flywheel is characterized by comprising a flywheel body (2), a torsion-limiting damper body and a reinforcing elastic piece (10);

the torsion limiting shock absorber body comprises a flexible disc (1), a cover plate (3), a torsion limiting device and a shock absorber;

the flexible disk (1) is fixedly arranged on one side of the flywheel body (2);

the cover plate (3) is fixedly arranged on the other side of the flywheel body (2);

the torque limiting device is pressed between the flywheel body (2) and the cover plate (3);

the vibration damping device is fixedly connected with the torque limiting device;

the reinforcing elastic piece (10) is installed between the flexible disk (1) and the flywheel body (2) and is respectively abutted against the flexible disk (1) and the flywheel body (2).

2. A flywheel torque-limiting damper device according to claim 1, characterized in that said reinforcing elastic member (10) is a belleville spring;

the flywheel body (2) is provided with a step (2 a) which is abutted against the reinforced elastic piece (10).

3. A flywheel torque-limiting damper device according to claim 1, characterized in that said torque-limiting device comprises a set of friction plates (6), a connecting piece (9), a compression washer (5) and a first elastic abutting piece (4);

the friction plate group (6) is fixed on the connecting piece (9), and the friction plate group (6) is abutted against the flywheel body (2);

the pressing gasket (5) is arranged between the friction plate group (6) and the cover plate (3), and the pressing gasket (5) is abutted against the friction plate group (6);

the first abutting elastic piece (4) is arranged between the pressing gasket (5) and the cover plate (3), and the first abutting elastic piece (4) is respectively abutted against the pressing gasket (5) and the cover plate (3).

4. A flywheel torque-limiting shock absorber device according to claim 3, wherein the shock absorber device comprises a clamping disc (7), a damping disc (11), a first friction damping member (14), a second friction damping member (16), a second elastic member (15), a driving disc (8) and a splined hub (13);

the splined hub (13) comprises a main body hub (13 a) and spline teeth (13 b);

the spline teeth (13 b) are integrally connected to the outer peripheral surface of the main body hub (13 a);

the driving disc (8) is provided with a spline groove (8 a) for the spline teeth (13 b) to be clamped in;

a first limiting plate (19) is fixedly mounted on one side, facing the flexible disk (1), of the spline groove (8 a), and a second limiting plate (20) is fixedly mounted on the other side of the spline groove (8 a);

the spline hub (13) is detachably mounted between the first limit plate (19) and the second limit plate (20);

the clamping disc (7) is fixedly connected with the connecting sheet (9);

the clamping disc (7), the driving disc (8) and the vibration reduction disc (11) are sequentially arranged along the cover plate (3) towards the flexible disc (1) and are respectively provided with a plurality of circumferentially distributed spring windows;

the spring windows on the clamping discs (7), the spring windows on the driving discs (8) and the spring windows on the damping discs (11) are in one-to-one correspondence to form a plurality of circumferentially distributed spring bins;

spring seats are arranged on two sides of each spring bin;

a vibration damping elastic piece (12) is sleeved between the spring seats of each spring bin;

the vibration reduction disc (11) is fixedly connected with the clamping disc (7);

the first friction damping piece (14) is arranged between the driving disc (8) and the vibration reduction disc (11), and the first friction damping piece (14) is respectively abutted against the driving disc (8) and the vibration reduction disc (11);

the second friction damping piece (16) is arranged between the driving disc (8) and the clamping disc (7), and one side of the second friction damping piece (16) is abutted against the driving disc (8);

the second abutting elastic piece (15) is arranged between the second friction damping piece (16) and the clamping disc (7), and the second abutting elastic piece (15) is respectively abutted against the clamping disc (7) and the second friction damping piece (16).

5. A flywheel torque limiting damper device according to claim 4, characterized in that the face of said first limit plate (19) facing said driving disc (8) is contactable with a side stop of said spline teeth (13 b);

a clamp spring groove (20 a) is formed in the position, facing the inner side edge of one surface of the driving disc (8), of the second limiting plate (20);

a clamp spring (21) is detachably arranged in the clamp spring groove (20 a);

the clamp spring (21) can be contacted with the other side stop of the spline teeth (13 b).

6. A flywheel torsion damper device according to claim 4, characterized in that said first limit plate (19) is riveted to said drive plate (8) together with said second limit plate (20).

7. The torsion limited damper device according to claim 4, wherein the flexible disk (1) is centrally provided with a through hole (1 b) communicating with the shaft hole of the spline hub (13);

a plurality of bolt mounting holes (1 a) are formed in the circumference of the through hole (1 b).

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