A torque limiting vibration damper with self-aligning function
By setting a centering mechanism in the outer ring cover of the torque-limiting vibration damper, the assembly problem caused by the coaxial deviation between the positioning pin on the flywheel and the motor bearing is solved, and the convenient installation of the torque-limiting vibration damper is achieved.
Patent Information
- Application Number
- CN202420882613.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing limited torsion damper is difficult to assemble when the positioning pin on the flywheel is coaxially deviated from the motor bearing.
A torsional damper with center-aligning function is designed. By setting a center-aligning mechanism in the outer ring cover of the torque-limiting damper, including a rear vibration damper disc, a front vibration damper disc, a damper plate, a disc core, a pre-vibration damper plate, a pre-vibration damper spring, a fixed ring, a connecting ring and an elastic component, the center-aligning mechanism can move within a certain space range and automatically adjust its position to achieve centering.
Through the automatic adjustment function of the center-aligning mechanism, the position of the torque limiting vibration damper can be automatically adjusted according to the motor shaft when the outer ring cover of the torque limiting vibration damper is fixed, which facilitates the installation of the torque limiting vibration damper and overcomes the assembly difficulties caused by coaxial deviation.
Smart Images
Figure CN222717351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile power systems, in particular to a torque limiting vibration damper with a self-aligning function. Background Art
[0002] The torque limiting vibration damper assembly is located between the engine and the generator. Its main function is to transmit the engine torque and reduce the torque fluctuation transmitted from the engine to the generator end, thereby improving the NVH (noise, vibration and harshness) performance of the entire vehicle.
[0003] In the prior art, the traditional torque limiting vibration damper disc core cannot move relative to the vibration damper and its outer ring cover plate, and in the whole vehicle, there is a certain coaxiality deviation between the locating pin on the flywheel and the motor bearing, which makes the torque limiting vibration damper difficult to assemble.
[0004] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Utility Model Content
[0005] The utility model provides a solution to the technical problem that in the application process of the traditional torque limiting vibration damper, when a certain coaxiality deviation exists between the locating pin on the flywheel and the motor bearing, the torque limiting vibration damper is difficult to assemble.
[0006] In order to solve the above technical problems, the utility model provides a torque limiting vibration damper with a self-aligning function, comprising:
[0007] A front cover plate 10 and a rear cover plate 11 are fixedly connected;
[0008] The disc spring 1 and the pressure plate 2 are arranged inside the front cover plate 10 and the rear cover plate 11; and,
[0009] A centering mechanism arranged inside the disc spring 1 and the pressure plate 2;
[0010] Among them, the front cover plate 10, the rear cover plate 11, the disc spring 1, the pressure plate 2 and the centering mechanism are concentrically arranged, and the centering mechanism can move relative to the front cover plate 10 and the rear cover plate 11.
[0011] As one of the optional implementation methods, the centering mechanism includes a rear vibration damping disk 3, a front vibration damping disk 4, a rear damping plate 5, a disk core 6, a pre-vibration damping plate 7, a pre-vibration damping disc spring 8, a fixing ring 13, a connecting ring 14 and an elastic component. The rear vibration damping disk 3 and the front vibration damping disk 4 are fixedly connected, and the rear damping plate 5, the disk core 6, the pre-vibration damping plate 7, the pre-vibration damping disc spring 8, the fixing ring 13 and the connecting ring 14 are arranged inside the rear vibration damping disk 3 and the front vibration damping disk 4; wherein, the rear vibration damping disk 3, the front vibration damping disk 4, the rear damping plate 5, the disk core 6, the pre-vibration damping plate 7, the pre-vibration damping disc spring 8, the fixing ring 13 and the connecting ring 14 are concentrically arranged, and the rear damping plate 5, the disk core 6, the pre-vibration damping plate 7, the pre-vibration damping disc spring 8, the fixing ring 13, the connecting ring 14 and the elastic component are connected in sequence.
[0012] As an optional implementation, cavities for installing elastic components are respectively provided on the rear damping plate 3 , the front damping plate 4 and the connecting ring 14 .
[0013] As one optional implementation, the elastic component includes an inner compression spring 15, an outer compression spring 16 and a connector 17, wherein the inner compression spring 15 is arranged inside the outer compression spring 16, and the connector 17 is arranged at both ends of the outer compression spring 16; wherein the connector 17 is connected to the connecting ring 14.
[0014] As an optional implementation, the front cover plate 10 and the rear cover plate 11 are fixedly connected by assembly rivets 12 .
[0015] As an optional implementation, the maximum outer diameters of the front cover plate 10 and the rear cover plate 11 are the same.
[0016] As an optional implementation manner, the rear vibration damping plate 3 and the front vibration damping plate 4 are connected by rivets 9 .
[0017] As an optional implementation, the maximum outer diameters of the rear damping disc 3 and the front damping disc 4 are the same.
[0018] In view of the deficiencies in the prior art, the beneficial effects that can be achieved by the utility model are as follows:
[0019] The utility model provides a torque limiting vibration damper with a self-aligning function. Through the provided self-aligning mechanism, when there is a certain coaxiality deviation between the locating pin on the flywheel and the motor bearing, when the outer ring cover plate (front cover plate and rear cover plate) of the torque limiting vibration damper is fixed, the position can be automatically adjusted according to the motor shaft to complete the centering, thereby facilitating the installation of the torque limiting vibration damper. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.
[0021] Figure 1 It is an exploded schematic diagram of a torsion limiting vibration damper with a self-aligning function provided by an embodiment of the utility model;
[0022] Figure 2 It is a schematic diagram of the general assembly of a torque limiting vibration damper with a self-aligning function provided by an embodiment of the utility model;
[0023] Figure 3 It is a plan view of a torsion limiting vibration damper with a self-aligning function provided by an embodiment of the utility model;
[0024] Figure 4 yes Figure 3 Schematic cross-sectional view at AA in the middle.
[0025] Figure 5 yes Figure 1-Figure 2 Explosion diagram of the center-aligning mechanism;
[0026] Figure 6 yes Figure 5 Schematic diagram of the local structure;
[0027] Figure 7 yes Figure 5-Figure 6 Schematic diagram of the structure of the elastic component.
[0028] In the accompanying drawings, the same reference numerals are used to denote the same components or structures, wherein:
[0029] 1- disc spring; 2- pressure plate; 3- rear vibration damping disc; 4- front vibration damping disc; 5- rear damping plate; 6- disc core; 7- pre-vibration damping plate; 8- pre-vibration damping disc spring; 9- rivet; 10- front cover plate; 11- rear cover plate; 12- assembly rivet; 13- fixing ring; 14- connecting ring; 15- inner compression spring; 16- outer compression spring; 17- connecting piece. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0031] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.
[0032] In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0033] This embodiment provides a torque limiting vibration damper with a self-aligning function, such as Figure 1-Figure 4 As shown, it includes: a front cover plate 10 and a rear cover plate 11, a disc spring 1 and a pressure plate 2 and an aligning mechanism, the front cover plate 10 and the rear cover plate 11 are used to be fixed to the flywheel, and the front cover plate 10 and the rear cover plate 11 are fixedly connected. Specifically, the front cover plate 10 and the rear cover plate 11 are fixed by an assembly rivet 12. Preferably, the maximum outer diameters of the front cover plate 10 and the rear cover plate 11 are the same, the disc spring 1 and the pressure plate 2 are arranged in a ring inside the front cover plate 10 and the rear cover plate 11, and the aligning mechanism is arranged in a ring inside the disc spring 1 and the pressure plate 2, and the disc spring 1 and the pressure plate 2 serve to assist in the installation of the aligning mechanism, wherein the front cover plate 10, the rear cover plate 11, the disc spring 1, the pressure plate 2 and the aligning mechanism are concentrically arranged, and when there is a certain coaxiality deviation between the locating pin on the flywheel and the motor bearing, the aligning mechanism can move within a certain spatial range relative to the front cover plate 10 and the rear cover plate 11.
[0034] In this embodiment, by setting up a centering mechanism, when there is a certain coaxiality deviation between the locating pin on the flywheel and the motor bearing, when the outer ring cover plate of the torque limiting vibration damper (front cover plate 10 and rear cover plate 11) is fixed, the position can be automatically adjusted according to the motor shaft, thereby facilitating the installation of the torque limiting vibration damper.
[0035] like Figure 5As shown, the centering mechanism includes a rear damping plate 3, a front damping plate 4, a rear damping plate 5, a plate core 6, a pre-damping damping plate 7, a pre-damping disc spring 8, a fixing ring 13, a connecting ring 14 and an elastic component. The rear damping plate 3 and the front damping plate 4 are fixedly connected. Specifically, the rear damping plate 3 and the front damping plate 4 are connected by rivets 9. Preferably, the maximum outer diameters of the rear damping plate 3 and the front damping plate 4 are the same. The rear damping plate 5, the plate core 6, the pre-damping damping plate 7, the pre-damping disc spring 8, the fixing ring 13 and the connecting ring 14 are connected. The connecting ring 14 is arranged inside the rear damping disc 3 and the front damping disc 4; wherein the rear damping disc 3, the front damping disc 4, the rear damping plate 5, the disc core 6, the pre-damping damping plate 7, the pre-damping disc spring 8, the fixing ring 13 and the connecting ring 14 are arranged concentrically, the rear damping plate 5, the disc core 6, the pre-damping damping plate 7, the pre-damping disc spring 8, the fixing ring 13, the connecting ring 14 and the elastic component are connected in sequence, and the rear damping disc 3, the front damping disc 4 and the connecting ring 14 are respectively provided with cavities for installing the elastic component. In this embodiment, the number of cavities for installing the elastic component is 4, such as Figure 6 As shown, after the elastic component is installed, vibration reduction in multiple directions can be achieved.
[0036] like Figure 7 As shown, the elastic component includes an inner compression spring 15, an outer compression spring 16 and a connecting piece 17, wherein the inner compression spring 15 is arranged inside the outer compression spring 16, and the connecting piece 17 is arranged at both ends of the outer compression spring 16; wherein the connecting piece 17 is connected to the connecting ring 14, and the specific connection method is achieved by providing a slot on the connecting piece 17 for connecting with the connecting ring 14.
[0037] This embodiment provides a torque limiting vibration damper with a self-aligning function, and the specific implementation process is as follows:
[0038] After the front cover plate 10 and the rear cover plate 11 are fixed to the flywheel by bolts, when there is a certain coaxiality deviation between the locating pin on the flywheel and the motor bearing, the disk core 6, driven by the motor shaft, pushes the pre-vibration damping plate 7 to compress the pre-vibration damping disc spring 8. The pre-vibration damping disc spring 8 can compress the elastic component in the circumferential direction and release a certain space to achieve centering, thereby facilitating the installation of the torque limiting vibration damper.
[0039] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A torque limiting vibration damper with self-aligning function, characterized in that: include: A front cover plate (10) and a rear cover plate (11) that are fixedly connected; a disc spring (1) and a pressure plate (2) arranged in a ring inside the front cover plate (10) and the rear cover plate (11); and, A centering mechanism arranged inside the disc spring (1) and the pressure plate (2); The front cover plate (10), the rear cover plate (11), the disc spring (1), the pressure plate (2) and the centering mechanism are arranged concentrically, and the centering mechanism is movable relative to the front cover plate (10) and the rear cover plate (11).
2. The torque limiting vibration damper with self-aligning function according to claim 1, characterized in that: The centering mechanism comprises a rear vibration damping plate (3), a front vibration damping plate (4), a rear damping plate (5), a plate core (6), a pre-vibration damping plate (7), a pre-vibration damping disc spring (8), a fixing ring (13), a connecting ring (14) and an elastic component. The rear vibration damping plate (3) and the front vibration damping plate (4) are fixedly connected. The rear damping plate (5), the plate core (6), the pre-vibration damping plate (7), the pre-vibration damping disc spring (8), the fixing ring (13) and the connecting ring (14) are arranged on the Inside the rear vibration damping disc (3) and the front vibration damping disc (4); wherein the rear vibration damping disc (3), the front vibration damping disc (4), the rear damping plate (5), the disc core (6), the pre-vibration damping plate (7), the pre-vibration damping disc spring (8), the fixing ring (13), the connecting ring (14) and the elastic component are arranged concentrically; and the rear damping plate (5), the disc core (6), the pre-vibration damping plate (7), the pre-vibration damping disc spring (8), the fixing ring (13), the connecting ring (14) and the elastic component are connected in sequence.
3. The torque limiting vibration damper with self-aligning function according to claim 2, characterized in that: The rear vibration damping plate (3), the front vibration damping plate (4) and the connecting ring (14) are respectively provided with cavities for installing elastic components.
4. The torque limiting vibration damper with self-aligning function according to claim 3, characterized in that: The elastic component comprises an inner compression spring (15), an outer compression spring (16) and a connecting piece (17); the inner compression spring (15) is arranged inside the outer compression spring (16); the connecting piece (17) is arranged at both ends of the outer compression spring (16); wherein the connecting piece (17) is connected to the connecting ring (14).
5. The torque limiting vibration damper with self-aligning function according to claim 1, characterized in that: The front cover plate (10) and the rear cover plate (11) are fixedly connected via assembly rivets (12).
6. The torsion limiting vibration damper with self-aligning function according to claim 5, characterized in that: The maximum outer diameters of the front cover plate (10) and the rear cover plate (11) are the same.
7. The torsion limiting vibration damper with self-aligning function according to claim 1, characterized in that: The rear vibration damping plate (3) and the front vibration damping plate (4) are connected via rivets (9).
8. The torque limiting vibration damper with self-aligning function according to claim 7, characterized in that: The maximum outer diameters of the rear vibration damping disc (3) and the front vibration damping disc (4) are the same.