Shock absorber integrated with external eccentric pendulum

Abstract

The utility model relates to a shock absorber integrated with an external eccentric pendulum. The shock absorber comprises a flywheel assembly, a shock absorption assembly and the eccentric pendulum which are sequentially connected. The eccentric pendulum is coaxially connected with an external vibration reduction disc in the vibration reduction assembly. The transmission system has the advantages that the eccentric pendulum is arranged outside the vibration reduction assembly, the eccentric pendulum can be disassembled and assembled according to requirements, for example, when the centrifugal pendulum is installed, rotating speed fluctuation during operation of an engine can be reduced, the whole transmission system can operate more stably, policy comfort is improved, and when the centrifugal pendulum is not needed, the centrifugal pendulum can be directly disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and concretely relates to a shock absorber integrated with external eccentric pendulum. BACKGROUND

[0002] The centrifugal pendulum type shock absorber is mainly used to reduce the main order vibration of the engine and can further attenuate the order vibration of the engine, but the centrifugal pendulum in the existing centrifugal pendulum shock absorber is generally arranged in the flywheel and cannot be disassembled according to requirements. SUMMARY

[0003] The utility model discloses a shock absorber integrated with external eccentric pendulum can quickly disassemble the centrifugal pendulum on the shock absorber according to requirements, and is convenient for vehicle structure design.

[0004] The utility model discloses a shock absorber integrated with external eccentric pendulum solves the technical problem that the above-mentioned technical scheme is as follows: a shock absorber integrated with external eccentric pendulum, including flywheel assembly, damping assembly, eccentric pendulum that connect gradually.

[0005] The eccentric pendulum is coaxially connected with the external damping disc in the damping assembly.

[0006] As a further technical scheme, the damping assembly further includes a built-in damping disc and a driven disc.

[0007] The built-in damping disc and the external damping disc are respectively located on the inner side and the outer side of the driven disc, and the built-in damping disc is arranged in an accommodating cavity enclosed by the flywheel assembly and the driven disc.

[0008] The built-in damping disc is fixedly connected with the external damping disc, and the driven disc is fixedly connected with the flywheel assembly.

[0009] As a further technical scheme, the damping assembly further includes a disc hub, and the disc hub is meshingly connected with the built-in damping disc.

[0010] As a further technical scheme, the built-in damping disc is spline-connected with the disc hub.

[0011] As a further technical scheme, the internal spline in the built-in damping disc is in a sawtooth shape.

[0012] As a further technical scheme, at least two protrusions are extended along the outer circle of the external damping disc, and the protrusions and the eccentric pendulum are connected through a limiting piece.

[0013] As a further technical scheme, the protrusions and the intermediate disc in the eccentric pendulum are connected through the limiting piece.

[0014] The intermediate disc, the external damping disc, the internal damping disc and the driven disc are coaxially arranged.

[0015] As a further technical solution, the damping assembly further comprises a damping elastic member, the damping elastic member is arranged in the mounting groove of the driven disc, mounting openings are arranged on the internal damping disc and the external damping disc, and the damping elastic member is arranged in the mounting openings on the corresponding sides.

[0016] The utility model discloses the beneficial effects are:

[0017] 1, the eccentric pendulum is external to the damping assembly, can dismount eccentric pendulum according to demand, for example, when installing centrifugal pendulum, can reduce the speed fluctuation when the engine runs, makes the whole transmission system run more stably, improves policy comfort, when not needing centrifugal pendulum, directly removes centrifugal pendulum.

[0018] 2, the internal damping disc, the external damping disc and the structure design of other structures in the damping assembly make the centrifugal pendulum be quickly disassembled and assembled without affecting the whole vehicle operation, and the operation is simple.

[0019] 3, the internal damping disc, the structure design of the hub and other structures of the utility model make the internal damping disc be the torque output end, the internal damping disc, the external damping disc, the flywheel assembly are coaxially arranged, synchronous rotation is realized, and in combination with the eccentric pendulum, the speed fluctuation of specific order can be attenuated, and the damping effect is further improved. DRAWINGS

[0020] Figure 1 It is a part structure schematic view of the damping absorber of the utility model integrated external eccentric pendulum.

[0021] Figure 2 It is Figure 1 The sectional view of A-A surface.

[0022] Figure 3 It is the front view of the damping absorber of the utility model integrated external eccentric pendulum.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] Flywheel assembly 1, flywheel body 11, gear ring 12, limit pin 13.

[0025] Damping assembly 2, external damping disc 21, protruding block 211, internal damping disc 22, driven disc 23, hub 24, damping elastic member 25, disc spring 26, damping sheet 27, pre-damping elastic member 28.

[0026] Eccentric pendulum 3, intermediate disc 31, first mass block 32, second mass block 33, rolling pin 34.

[0027] Limiting piece 4. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the scope of protection of the present application.

[0029] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the description of the present application, the term "for example" is used to indicate "as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily interpreted as more preferred or more advantageous than other embodiments. The following description is given in order to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person skilled in the art can realize the present application without using these specific details. In other examples, well-known structures and processes will not be described in detail to avoid unnecessary details making the description of the present application obscure. Therefore, the present application is not intended to be limited to the shown embodiments, but is consistent with the broadest scope of principles and features disclosed in the present application.

[0031] Embodiment 1

[0032] The present embodiment provides a shock absorber integrated with an external eccentric pendulum, referring to Figures 1-3 , comprising a flywheel assembly 1, a damping assembly 2 and an eccentric pendulum 3 connected in sequence; the eccentric pendulum 3 is coaxially connected with the external damping disc 21 in the damping assembly 2. This structure design can adapt to the needs of the whole vehicle, for example, when the comfort requirement of the whole vehicle is not high, the centrifugal pendulum can be directly removed; when the comfort requirement of the whole vehicle is high, the centrifugal pendulum is installed, which can reduce the speed fluctuation of the engine during operation, so that the whole transmission system runs more smoothly and the comfort is improved.

[0033] It should be noted that, referring to Figure 2The flywheel assembly 1 comprises a flywheel body 11, a gear ring 12, and a limiting pin 13. One side of the flywheel body 11 is connected with a crankshaft of an engine, and the other side is connected with the damping assembly 2. The flywheel body 11 is in interference fit with the gear ring 12, for example, the gear ring 12 is heated to 200 DEG C and then is sleeved on the flywheel body 11, and when the gear ring 12 is cooled to normal temperature, it is fastened. The flywheel body 11 is bolted with the crankshaft of the engine.

[0034] For example, three limiting pins 13 are arranged on the flywheel body 11 for positioning when the damping assembly 2 is assembled. The damping assembly 2 can be used to attenuate the speed fluctuation of the engine, so that the operation environment of the gearbox or the motor becomes stable. The eccentric pendulum 3 can attenuate the speed fluctuation of a specific order, further improving the damping effect.

[0035] In the specific implementation process, referring to Figure 2 The damping assembly 2 further comprises an inner damping disc 22 and a driven disc 23. The inner damping disc 22 and the outer damping disc 21 are respectively located on the inner side and the outer side of the driven disc 23, and the inner damping disc 22 is arranged in a containing cavity surrounded by the flywheel assembly 1 and the driven disc 23.

[0036] The inner damping disc 22 is fixedly connected with the outer damping disc 21, for example, by rivet connection. The driven disc 23 is fixedly connected with the flywheel assembly 1.

[0037] For easy installation, positioning holes and bolt holes are arranged on the outer circle of the driven disc 23 for fixing with other components.

[0038] In the specific implementation process, referring to Figure 2 The damping assembly 2 further comprises a disc hub 24, and the disc hub 24 is in meshing connection with the inner damping disc 22. For example, the inner damping disc 22 is in spline connection with the disc hub 24. One way that can be realized is that the inner spline in the inner damping disc 22 is zigzag-shaped, and correspondingly, the spline on the outer circle of the disc hub 24 is adapted thereto.

[0039] In the specific implementation process, referring to Figure 2At least two protrusions 211 are arranged along the outer circle of the outer damping disc 21, and the protrusions 211 and the eccentric pendulum 3 are connected by the limiting member 4. For example, four protrusions 211 are arranged on the outer damping disc 21, and the four protrusions 211 are uniformly distributed along the circumference of the outer damping disc 21. The protrusions 211 are provided with through holes, so that the protrusions 211 and the intermediate disc 31 in the eccentric pendulum 3 are connected by the limiting member 4. At this time, the limiting member 4 passes through the through hole, and correspondingly, the intermediate disc 31 is also provided with a hole through which the limiting member 4 passes. It should be noted that the intermediate disc 31, the outer damping disc 21, the inner damping disc 22, and the driven disc 23 are coaxially arranged. When the flywheel body 11 rotates, the intermediate disc 31, the outer damping disc 21, the inner damping disc 22, and the driven disc 23 also rotate along the center of the flywheel body 11. This facilitates the smooth operation of the gearbox or motor.

[0040] It should be noted that the eccentric pendulum 3 further includes a first mass block 32, a second mass block 33, and a rolling pin 34. The first mass block 32 and the second mass block 33 are respectively connected to the two sides of the intermediate disc 31 through the rolling pin 34.

[0041] For example, the limiting member 4 is a limiting rivet.

[0042] In the specific implementation process, the damping assembly 2 further includes a damping elastic member 25. The damping elastic member 25 is arranged in the mounting groove of the driven disc 23. The inner damping disc 22 and the outer damping disc 21 are both provided with mounting ports. The two sides of the damping elastic member 25 in the axial direction are respectively located in the corresponding mounting ports.

[0043] This embodiment is implemented in the following manner. After the driven disc 23 receives the power transmitted by the flywheel body 11, the driven disc 23 rotates and compresses the damping elastic member 25. The engine torque is transmitted from the damping elastic member 25 to the inner damping disc 22. The inner damping disc 22 transmits the torque to the disc hub 24, and the disc hub 24 transmits the torque to the gearbox or motor. Since the outer damping disc 21 is connected to the eccentric pendulum 3, the specific order speed fluctuation (which is a key indicator for monitoring the state of rotating machinery) can be eliminated, and the damping performance is further improved.

[0044] It should be noted that the damping assembly 2 further comprises a disc spring 26, a damping sheet 27, and a pre-damping elastic member 28; one end of the disc spring 26 is in abutment with the driven plate 23, and the other end of the disc spring 26 is in abutment with the damping sheet 27, and the side of the damping sheet 27 away from the disc spring 26 is in abutment with the inner wall of the external damping plate 21; it should be noted that the disc spring 26 and the damping sheet 27 are both arranged on the first side of the damping elastic member 25 close to the center of the hub 24; and the pre-damping elastic member 28 is arranged in the pre-installation groove of the hub 24.

[0045] For example, the damping elastic member 25 and the pre-damping elastic member 28 are respectively a damping spring and a pre-damping spring.

[0046] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0047] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the present application.

[0048] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A vibration damper with an integrated external eccentric pendulum, characterized in that, Including a flywheel assembly (1), a vibration damping assembly (2), and an eccentric pendulum (3) connected in sequence; The eccentric pendulum (3) is coaxially connected to the external damping disk (21) in the damping assembly (2).

2. The vibration damper with an integrated external eccentric pendulum according to claim 1, characterized in that, The vibration damping assembly (2) also includes a built-in vibration damping disc (22) and a driven disc (23); The built-in damping disc (22) and the external damping disc (21) are located on the inner and outer sides of the driven disc (23), respectively, and the built-in damping disc (22) is located in the receiving cavity enclosed by the flywheel assembly (1) and the driven disc (23); The built-in damping disc (22) is fixedly connected to the external damping disc (21), and the driven disc (23) is fixedly connected to the flywheel assembly (1).

3. A vibration damper with an integrated external eccentric pendulum according to claim 2, characterized in that, The vibration damping assembly (2) also includes a hub (24), which is engaged with the built-in vibration damping disc (22).

4. A vibration damper with an integrated external eccentric pendulum according to claim 3, characterized in that, The built-in damping disc (22) is splinedly connected to the disc hub (24).

5. A vibration damper with an integrated external eccentric pendulum according to claim 4, characterized in that, The internal spline of the built-in damping disc (22) is serrated.

6. A vibration damper with an integrated external eccentric pendulum according to claim 2, characterized in that, At least two protrusions (211) extend along the outer circle of the external damping disc (21), and the protrusions (211) and the eccentric pendulum (3) are connected by a limiting member (4).

7. A vibration damper with an integrated external eccentric pendulum according to claim 6, characterized in that, The protrusion (211) is connected to the intermediate disk (31) in the eccentric pendulum (3) through the limiting member (4); The intermediate disk (31), the external damping disk (21), the internal damping disk (22), and the driven disk (23) are coaxially arranged.

8. A vibration damper with an integrated external eccentric pendulum according to any one of claims 2-7, characterized in that, The vibration damping assembly (2) also includes a vibration damping elastic element (25), which is located in the mounting groove of the driven disk (23). The built-in vibration damping disk (22) and the external vibration damping disk (21) are both provided with mounting ports. The two sides of the vibration damping elastic element (25) in the axial direction are respectively located in the mounting ports on the corresponding sides.

Images