A vibration damper and a transmission shaft

Abstract

The utility model relates to the technical field of automobile parts, concretely puts forward a kind of damping support and transmission shaft, wherein, damping support includes: support part and connecting part;Multiple preset connection points are provided on support part;Connecting part is connected with the support part, and the connecting part is used to be connected with the shaft of external parts;Multiple preset connection points are arranged around the connecting part;And multiple preset connection points are connected with each other. The setting stability of connecting part can be greatly improved, and the modal of support part and connecting part is further improved, so as to avoid the resonance interval of the whole transmission system, effectively inhibit the vibration energy of the whole transmission system, and then effectively reduce the vibration noise in the car, so as to improve the riding comfort when passengers ride.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and specifically relates to a vibration damping bracket and a drive shaft. Background Technology

[0002] As people's demands for automobiles increase, the pursuit of high-powered engines has become a trend in practical applications. However, because there are unavoidable gaps in the entire transmission system of a car, the increase in engine power can easily lead to an increase in vibration and noise.

[0003] Reference Figure 1 Current automotive transmission systems generally improve the modal characteristics of the entire transmission system to some extent by dividing the original long, one-piece shaft into at least two shorter, separate shafts and installing fixed supports between adjacent short shafts. This reduces vibration and noise caused by the high-speed rotation of the entire transmission system. However, with the gradual increase in engine power, the above structural design has a decreasing effect on suppressing vibration and noise. Especially when the entire transmission system is operating under high torque or when the torque direction of the entire transmission system changes, it is prone to generating significant vibration and noise due to resonance and collision, thus affecting the ride comfort of passengers. Utility Model Content

[0004] To address the above problems, this utility model proposes a vibration damping bracket, comprising:

[0005] The support section has multiple preset connection points.

[0006] A connecting part, which is connected to the support part, and the connecting part is used to connect to the shaft of an external component;

[0007] Multiple preset connection points are arranged around the connection portion;

[0008] Furthermore, the multiple preset connection points are interconnected.

[0009] In some specific embodiments, the support portion includes:

[0010] plate body;

[0011] Multiple bolts are provided, and the multiple bolts are provided on the plate body and are connected to each other through the plate body;

[0012] Each of the bolts can be connected to external components via bolts to form multiple preset connection points.

[0013] In some specific embodiments, at least one side of the plate has an inwardly curved structure.

[0014] In some specific embodiments, the included angle between at least two adjacent sides of the plate is an obtuse angle.

[0015] In some specific embodiments, the plate body is provided with at least one hollow groove;

[0016] The hollowed-out groove has a triangular structure.

[0017] In some specific embodiments, multiple bolts are embedded in the side of the plate.

[0018] In some specific embodiments, the connecting portion includes:

[0019] A housing is disposed on the side of the plate, and a receiving cavity is provided inside the housing;

[0020] A bearing, which is rotatably disposed within the receiving cavity;

[0021] The housing has through holes for connecting the bearing to external components.

[0022] In some specific embodiments, at least one triangular protrusion is provided on the side of the housing;

[0023] At least one end of the triangular protrusion extends along the side of the plate.

[0024] In some specific embodiments, the support is made of ductile iron.

[0025] A drive shaft based on the same concept includes a vibration damping bracket as described in any of the above specific embodiments.

[0026] Compared with the prior art, the vibration damping bracket of this utility model has at least the following advantages: by using multiple interconnected and pre-set connection points on the support part that surround the connection part, the stability of the connection part can be greatly improved, and the modality of the support part can be further improved, thereby avoiding the resonance range of the entire transmission system, effectively suppressing the vibration energy of the entire transmission system, and thus effectively reducing the vibration noise in the vehicle, thereby improving the riding comfort of passengers.

[0027] The transmission shaft of this utility model includes the vibration damping bracket described above, so it has the same beneficial effects as the vibration damping bracket described above, and therefore will not be described again here.

[0028] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the prior art is shown;

[0031] Figure 2 A schematic diagram of the vibration damping bracket in an embodiment of this utility model is shown.

[0032] In the diagram, 100 is the support part; 110 is the plate; 120 is the bolt; 200 is the connecting part; 210 is the housing; and 220 is the bearing. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Reference Figure 2 This utility model provides a vibration damping bracket, including a support portion 100 and a connecting portion 200. The support portion 100 has multiple preset connection points. The connecting portion 200 is connected to the support portion 100 and is used for shaft connection with external components. Multiple preset connection points are arranged around the connecting portion 200 and are interconnected.

[0035] Specifically, one end of the connecting part 200 is used for rotatable connection with an external component, i.e., a shaft in the transmission system. One side of the connecting part 200 is connected to the support part 100. The support part 100 is provided with multiple preset connection points. Any preset connection point can be connected to the external connecting part 200, i.e., the engine body, so that the support part 100 can support the connecting part 200. Furthermore, the multiple preset connection points are arranged around the connecting part 200, so that the multiple preset connection points can surround the connecting part 200, making the support stable. At the same time, the multiple preset connection points are also interconnected, thereby improving the connection stability between the multiple preset connection points. This can improve the mode of the support part 100, the connecting part 200 connected to the support part 100, and the shaft in the transmission system connected to the connecting part 200, thereby avoiding the resonance range of the shaft of the entire transmission system, effectively suppressing the vibration energy of the entire transmission system, and thus effectively reducing the vibration noise in the vehicle, thereby improving the riding comfort of passengers.

[0036] It should be noted that in actual use, by setting the vibration damping bracket between two adjacent shafts in the transmission system and rotatably connecting it to each shaft, it can provide support for the two adjacent shafts in the transmission system while simultaneously connecting them.

[0037] In some specific embodiments of this utility model, the support portion 100 includes a plate 110 and bolt members 120. Multiple bolt members 120 are provided, disposed on the plate 110, and interconnected through the plate 110. Any bolt member 120 can be connected to an external component via bolts to form multiple preset connection points.

[0038] Specifically, one side of the connecting part 200 is fixedly connected to one side of the plate 110, and multiple bolts 120 are fixedly mounted on the plate 110 around the outside of the connecting part 200, so that every two bolts 120 can be connected to each other through the plate 110. Each bolt 120 is a preset connection point, and multiple preset connection points can be formed by multiple bolts 120. In this way, while forming multiple preset connection points around the connecting part 200, the interconnection between multiple preset connection points is also realized, which improves the connection stability between multiple preset connection points and the mode of the shaft in the transmission system, increasing the original 1000 Hz range to the 1500 Hz range. This avoids the resonance range of the shaft of the entire transmission system, effectively suppresses the vibration energy of the entire transmission system, and thus effectively reduces the vibration noise in the vehicle, thereby improving the riding comfort of passengers.

[0039] Furthermore, the main body of the plate 110 is rectangular, the connecting part 200 is disposed on one side of the plate 110 and close to one side edge of the plate 110, and multiple bolts 120 are respectively disposed at the corners of the plate 110, so that the multiple bolts 120 surround the connecting part 200.

[0040] Furthermore, there are three bolt members 120. One bolt member 120 is located at the top corner of the side of the plate 110 away from the connecting part 200, another bolt member 120 is located at the bottom corner of the side of the plate 110 away from the connecting part 200, and the last bolt member 120 is located at the top corner of the side of the plate 110 close to the connecting part 200. This allows the multiple bolt members 120 to form a triangular structure after being connected to each other through the plate 110. While ensuring stability, this limits the number of bolt members 120 to avoid exceeding the overall weight limit.

[0041] In some specific embodiments of this utility model, at least one side of the plate 110 has an inner arc-shaped structure.

[0042] Specifically, one or both sides of the plate 110 have an inwardly curved structure. When one side of the plate 110 has an inwardly curved structure, specifically, the side of the plate 110 away from the connecting part 200 has an inwardly curved structure, two bolts 120 located at the top and bottom corners of the side of the plate 110 away from the connecting part 200 can be connected through the inwardly curved side of the plate 110 away from the connecting part 200. This further enhances the connection between the plate 110, the connecting part 200 connected to the plate 110, and the connection between the connecting part 200 and the connecting part 200. The modes of the shaft in the transmission system, or the side of the top of the plate 110 is an inner arc structure, so that two bolts 120 respectively provided at the top corner of the side of the plate 110 away from the connecting part 200 and at the top corner of the side of the plate 110 near the connecting part 200 can be connected through the side of the inner arc structure of the top of the plate 110, thereby further increasing the modes of the plate 110, the connecting part 200 connected to the plate 110, and the shaft in the transmission system connected to the connecting part 200. When the sides of one or both sides of the plate 110 are inwardly curved, specifically, the side of the plate 110 away from the connecting part 200 and the top side of the plate 110 are both inwardly curved. This can further increase the modal of the plate 110, the connecting part 200 connected to the plate 110, and the shaft in the transmission system connected to the connecting part 200, effectively suppressing the vibration energy of the entire transmission system, thereby effectively reducing the vibration noise inside the vehicle and improving the riding comfort of passengers.

[0043] In some specific embodiments of this utility model, the included angle between at least two sides of the plate 110 is an obtuse angle. Specifically, the bottom side of the plate 110 is inclined, so that the side of the plate 110 near the connecting part 200 forms an angle with the bottom side of the plate 110, and this included angle is an obtuse angle. This further increases the modal activity of the plate 110, the connecting part 200 connected to the plate 110, and the shaft in the transmission system connected to the connecting part 200, effectively suppressing the vibration energy of the entire transmission system, thereby effectively reducing vibration noise inside the vehicle and improving passenger comfort.

[0044] In some specific embodiments of this utility model, at least one hollow groove is provided on the plate 110. The hollow groove has a triangular structure.

[0045] Specifically, the hollow groove is formed on the plate 110. The hollow groove is triangular in shape. The hollow groove can greatly reduce the weight of the plate 110, thereby further optimizing the mode. In addition, the triangular hollow groove can also ensure the stability of the plate 110 under the action of the triangle property.

[0046] Furthermore, there are three perforated slots, which are symmetrically arranged. Two of the perforated slots are symmetrically arranged about the center of the plate 110, and the two sides of the third perforated slot are symmetrically arranged about the center of the plate 110, thereby further reducing the weight of the plate 110. At the same time, the unperforated areas between adjacent perforated slots can directly form a beam-like structure, thereby further enhancing the stability of the plate 110.

[0047] In some specific embodiments of this utility model, multiple bolt members 120 are embedded in the side of the plate 110. Specifically, there are three bolt members 120. One bolt member 120 is located at the top corner of the side of the plate 110 away from the connecting part 200, another bolt member 120 is located at the bottom corner of the side of the plate 110 away from the connecting part 200, and the last bolt member 120 is located at the top corner of the side of the plate 110 close to the connecting part 200. This allows the multiple bolt members 120 to form a triangular structure around the connecting part 200 after being interconnected through the plate 110. While ensuring stability, this limits the number of bolt members 120 to avoid exceeding the overall weight limit.

[0048] In some specific embodiments of this utility model, the connecting part 200 includes a housing 210 and a bearing 220. The housing 210 is disposed on the side of the plate 110, and a receiving cavity is provided inside the housing 210. The bearing 220 is rotatably disposed in the receiving cavity. A through hole is provided on the housing 210 for connecting the bearing 220 to external components.

[0049] Specifically, one side of the housing 210 is connected to the side of the plate 110 and is positioned close to one side of the plate 110. The housing 210 is hollow, thus forming a receiving cavity within the housing 210. The bearing 220 is rotatably disposed within the receiving cavity. Furthermore, a through hole is provided on one side wall of the housing 210, which is coaxially arranged with the bearing 220. This allows one shaft in the transmission system to pass through the through hole and rotatably connect with the bearing 220 in the receiving cavity, while the other shaft in the transmission system can be connected to the side of the housing 210 opposite to the through hole. This enables the connection of two shafts in the transmission system, resulting in a simple, flexible structure that is easy to install and disassemble.

[0050] In some specific embodiments of this utility model, at least one triangular protrusion is provided on the side of the housing 210. At least one end of the triangular protrusion extends along the side of the plate 110.

[0051] Specifically, a triangular protrusion is provided on the top of the sidewall of the housing 210 facing away from the through hole. One end of the triangular protrusion extends away from the through hole on the side of the plate 110, thereby increasing the contact area between the housing 210 and the plate 110, ensuring the stability of the connection, and indirectly increasing the strength of the plate 110 and the housing 210. Alternatively, a triangular protrusion is provided on the bottom of the sidewall of the housing 210 facing away from the through hole. One end of the triangular protrusion extends away from the through hole on the side of the plate 110, thereby increasing the contact area between the housing 210 and the plate 110, ensuring the stability of the connection, and indirectly increasing the strength of the plate 110 and the housing 210. Alternatively, triangular protrusions can be provided on the top and bottom of the side wall of the housing 210 facing away from the through hole. One end of each triangular protrusion extends away from the through hole on the side of the plate 110, thereby further increasing the contact area between the housing 210 and the plate 110, ensuring the stability of the connection, and indirectly increasing the strength of the plate 110 and the housing 210. At the same time, the triangular protrusions also facilitate the placement of the bolt 120, preventing the ends of the triangular protrusions from occupying the bolt 120's placement position and affecting the firmness of the bolted connection.

[0052] In some specific embodiments of this utility model, the support part 100 is made of ductile iron. Specifically, the material of the plate 110 and bolt 120 of the support part 100 is changed from the original cast aluminum material to ductile iron material, thereby increasing the strength and toughness of the support part 100 and increasing the stability of the transmission system.

[0053] It should be noted that although using ductile iron will increase the weight of the support part 100 from the original 0.3 kg to 2.1 kg, the overall weight can be avoided by combining it with the hollowed-out groove on the plate 110.

[0054] This utility model also provides a drive shaft, including at least one vibration damping bracket as described in any of the above specific embodiments. Through a plurality of interconnected bolts 120 at the corners of the plate 110 and surrounding the housing 210, the stability of the installation can be greatly improved, and the modal characteristics of the shaft in the transmission system—including the plate 110, the housing 210 connected to the plate 110, and the bearing 220 in the housing 210—can be further enhanced. This avoids the resonance range of the entire transmission system, effectively suppresses the vibration energy of the entire transmission system, and thus effectively reduces vibration noise inside the vehicle, thereby improving passenger comfort.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibration damping bracket, characterized in that, include: The support part (100) is provided with a plurality of preset connection points; A connecting part (200) is connected to the support part (100), and the connecting part (200) is used to connect with an external component shaft; Multiple preset connection points are arranged around the connection portion (200); Furthermore, the multiple preset connection points are interconnected.

2. The vibration damping bracket according to claim 1, characterized in that, The support portion (100) includes: Plate(110); Bolts (120) are provided in multiples, and the multiple bolts (120) are provided on the plate (110) and the multiple bolts (120) are connected to each other through the plate (110); Each of the bolts (120) can be connected to external components by bolts to form multiple preset connection points.

3. The vibration damping bracket according to claim 2, characterized in that, At least one side of the plate (110) has an inward arc-shaped structure.

4. The vibration damping bracket according to claim 2 or 3, characterized in that, The included angle between at least two adjacent sides of the plate (110) is an obtuse angle.

5. The vibration damping bracket according to claim 2 or 3, characterized in that, The plate (110) is provided with at least one hollow groove; The hollowed-out groove has a triangular structure.

6. The vibration damping bracket according to claim 2 or 3, characterized in that, Multiple bolts (120) are embedded in the side of the plate (110).

7. The vibration damping bracket according to claim 2, characterized in that, The connecting part (200) includes: A housing (210) is disposed on the side of the plate (110), and a receiving cavity is provided inside the housing (210); A bearing (220) is rotatably disposed within the receiving cavity; The housing (210) has a through hole for the bearing (220) to connect to external components.

8. The vibration damping bracket according to claim 7, characterized in that, The side of the housing (210) is provided with at least one triangular protrusion; At least one end of the triangular protrusion extends along the side of the plate (110).

9. The vibration damping bracket according to claim 1, characterized in that, The support part (100) is made of ductile iron.

10. A drive shaft, characterized in that, Including the vibration damping bracket as described in any one of claims 1 to 9.

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