Damping device and vehicle

Abstract

The utility model discloses a damping device and a vehicle, the disclosed damping device comprises a fixed support, an inner layer elastic body, an outer layer elastic body and a plurality of elastic connecting ribs, the fixed support is used for being fixedly connected with a vehicle body, the inner layer elastic body is sleeved outside the fixed support, and the outer layer elastic body is sleeved outside the outer layer elastic body. The outer-layer elastic body is arranged outside the inner-layer elastic body in a sleeving mode, a gap is formed between the outer-layer elastic body and the inner-layer elastic body, the outer-layer elastic body is used for being fixedly connected with a vibration source, and the elastic connecting ribs are arranged in the gap and connected with the inner-layer elastic body and the outer-layer elastic body. According to the scheme, the problem that vibration of a vehicle body is large due to the fact that vibration of an engine is transmitted to the vehicle body through an air inlet pipeline in a vehicle in the related technology can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to a damping device and vehicle. BACKGROUND

[0002] In vehicle design, the engine as a power source is the core component of vehicle operation. However, the engine will produce significant vibration in the working process, which is transmitted to the vehicle body through various connecting parts and media, and further affects the ride comfort and driving experience. Specifically, the intake pipe of the intake system is directly connected with the engine and needs to be fixed between the engine and the vehicle body, so it becomes an important medium for vibration transmission. The vibration transmitted to the vehicle body not only makes the passengers feel uncomfortable, but also may cause resonance phenomenon in the cab, further amplifying the noise and affecting the quietness of the vehicle. At the same time, vibration transmission also accelerates the wear and fatigue damage of related components (such as intake pipe, etc.), shortens the service life and increases the maintenance cost. SUMMARY

[0003] Therefore, the utility model discloses a damping device and vehicle to solve the problem that the vehicle in the prior art is vibrated greatly due to the vibration of the engine transmitted to the vehicle body through the intake pipe.

[0004] In order to solve the above technical problems, the utility model is realized as follows:

[0005] In a first aspect, the application discloses a damping device, which comprises a fixed support, an inner elastic body, an outer elastic body and a plurality of elastic connecting ribs, wherein:

[0006] The fixed support is used for fixed connection with the vehicle body, the inner elastic body is sleeved outside the fixed support, the outer elastic body is sleeved outside the inner elastic body, and there is a gap between the inner elastic body and the outer elastic body, the outer elastic body is used for fixed connection with the vibration source, and the plurality of elastic connecting ribs are arranged in the gap and connect the inner elastic body and the outer elastic body.

[0007] Optionally, the fixed support is a cylindrical body, and the inner elastic body, the outer elastic body and the plurality of elastic connecting ribs are integrally formed on the fixed support through a vulcanization process.

[0008] Optionally, in the extension direction of the central axis of the fixed support, the fixed support has a first end and a second end, the plurality of elastic connecting ribs comprises a plurality of first connecting ribs and a plurality of second connecting ribs, the plurality of first connecting ribs are uniformly distributed along the direction around the central axis and are arranged close to the first end of the fixed support, and the plurality of second connecting ribs are uniformly distributed along the direction around the central axis and are arranged close to the second end of the fixed support.

[0009] Optionally, in the extension direction of the central axis, the projections of the plurality of first connecting ribs and the projections of the plurality of second connecting ribs are staggered in sequence.

[0010] Optionally, in a plane parallel to the central axis, the projection of the outer layer of elastomer is located within the projection of the inner layer of elastomer, so that a buffer height is formed between the outer layer of elastomer and the inner layer of elastomer.

[0011] Optionally, at least one of the first connecting rib and the second connecting rib extends in the radial direction of the fixed support and is inclined towards the first end or the second end of the fixed support.

[0012] Optionally, the angle between the first connecting rib or the second connecting rib and the central axis is greater than or equal to 40 degrees and less than or equal to 70 degrees.

[0013] Optionally, the fixed support has a limiting recess in the portion between the first end and the second end of the fixed support.

[0014] Optionally, an annular mounting groove is formed on the outer side of the outer layer of elastomer, and the annular mounting groove is used to mount the mounting support of the vibration source.

[0015] In a second aspect, the application also discloses a vehicle, and the disclosed vehicle comprises the damping device of the first aspect.

[0016] The technical solution of the utility model can achieve the following technical effects:

[0017] The damping device is provided with a fixed support, an inner layer of elastomer, an outer layer of elastomer, and a plurality of elastic connecting ribs, the inner layer of elastomer is sleeved outside the fixed support, the outer layer of elastomer is sleeved outside the inner layer of elastomer, and the elastic connecting ribs are connected between the inner layer of elastomer and the outer layer of elastomer, so that when the damping device is installed between the intake pipeline of the intake system of the engine and the vehicle body, the fixed support is fixed to the vehicle body, and the outer layer of elastomer is fixed to the vibration source, thereby the elastic buffering effect of the inner layer of elastomer, the outer layer of elastomer, and the plurality of elastic connecting ribs can relieve the transmission of the vibration of the engine to the vehicle body through the intake pipeline, thereby the problem of large vibration of the vehicle body can be relieved, and the wear and fatigue damage of the intake pipeline and related components can be relieved, and the maintenance period can be improved and the maintenance cost can be reduced.

[0018] The combined structure of an inner elastomer, an outer elastomer, and elastic connecting ribs significantly improves the lateral and vertical vibration damping performance of the vibration reduction device through the superposition of the elastic effects of these three layers. Furthermore, the outer elastomer not only serves as a component providing elastic buffering but also as the mounting base for the vibration source, thus enabling it to serve a dual purpose. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the vibration damping device and mounting bracket disclosed in the embodiments of this utility model in their mating state (in... Figure 3 (Cross view at point AA), where H represents the height of the buffer space and α represents the angle between the second connecting rib and the height direction;

[0020] Figure 2 This is a cross-sectional view of the vibration damping device disclosed in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the vibration damping device and mounting bracket in the cooperative state disclosed in the embodiments of this utility model;

[0022] Figure 4 for Figure 3 Sectional view at BB;

[0023] Figure 5 for Figure 3 Sectional view at CC.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100 - Fixed bracket, 101 - Limiting recess,

[0026] 200 - Inner layer elastomer, 201 - Gap,

[0027] 300 - Outer elastomer, 310 - Annular mounting groove

[0028] 400 - Elastic connecting bar, 410 - First connecting bar, 420 - Second connecting bar

[0029] 500 - Mounting bracket. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the related art, the air inlet pipeline of the air intake system of the engine of the vehicle is directly connected with the engine. Since the engine of the vehicle generates significant vibration during operation, the vibration is transmitted to the vehicle body through the air inlet pipeline, which not only causes the passengers to feel uncomfortable, but also can cause resonance in the cab, further amplifies the noise and affects the quietness in the vehicle. Meanwhile, the vibration transmission also accelerates the wear and fatigue damage of related components (such as the air inlet pipeline), shortens the service life and increases the maintenance cost. Based on the problems of the vehicle, the vibration damping device is designed to be installed between the air inlet pipeline of the air intake system of the engine and the vehicle body, so as to alleviate the vibration of the engine transmitted to the vehicle body.

[0032] The technical solutions of the various embodiments of the utility model are described in detail below with reference to the drawings.

[0033] Please refer to Figures 1 to 5 The utility model discloses a kind of vibration damping devices, the disclosed vibration damping device can be applied to vehicle, especially can be applied to between the air inlet pipeline of the air intake system of engine and the vehicle body of vehicle, to alleviate the vibration of engine transmitted to the vehicle body and cause the case of larger vibration of vehicle body.

[0034] The disclosed vibration damping device includes a fixed support 100, an inner layer elastomer 200, an outer layer elastomer 300 and a plurality of elastic connecting ribs 400.

[0035] The fixed support 100 is the basic component of the vibration damping device, and is used to provide a basis for the installation of other components of the vibration damping device. The fixed support 100 is used to be fixedly connected with the vehicle body, and can be fixed to the vehicle body (such as front longitudinal beam, cross beam, etc.) by welding, clamping, bolt connection and the like. For example, when the fixed support 100 is fixed to the vehicle body by bolts, the fixed support 100 can be provided with a through avoiding hole (when the fixed support 100 is mentioned as a cylindrical body in the following, the avoiding hole can be a through hole surrounded by the cylindrical body), and the vehicle body can be fixedly provided with a nut or a threaded hole, and the bolt can be threadedly connected with the nut or the threaded hole on the vehicle body through the avoiding hole, so that the fixed support 100 can be fixed to the vehicle body. Other connection methods between the fixed support 100 and the vehicle body are not listed one by one in the embodiments of the present application.

[0036] The fixed support 100 can be a metal support, for example, an aluminum alloy support, a stainless steel support, a titanium alloy support, etc. Of course, the fixed support 100 can also be a non-metal support, for example, a polyamide (nylon PA) support, a polyethylene (PE) support, etc. The material of the fixed support 100 is not limited in the embodiments of the present application.

[0037] The inner layer elastic body 200 is sleeved outside the fixed support 100, the outer layer elastic body 300 is sleeved outside the inner layer elastic body 200, and a gap 201 is formed between the outer layer elastic body 300 and the inner layer elastic body 200, and the outer layer elastic body 300 is used to be fixedly connected with the vibration source. A plurality of elastic connecting ribs 400 are arranged in the gap 201, and the plurality of elastic connecting ribs 400 connect the inner layer elastic body 200 and the outer layer elastic body 300.

[0038] It should be noted that the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 are components that can play a supporting role and have a certain elasticity. When the fixed support 100 is fixed to the vehicle body, the inner layer elastic body 200 is sleeved on the fixed support 100, so that the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 form an integral component with the fixed support 100, and the outer layer elastic body 300 can be directly connected with the vibration source to support and fix the vibration source.

[0039] The damping device in the embodiment of the application is not limited to be applied between the air inlet pipeline of the air inlet system of the engine and the vehicle body, but can also be applied at other positions of the vehicle. For example, the damping device can also be applied between the compressor of the air conditioning system and the vehicle body, or the damping device can also be applied between the condenser fan and the vehicle body, etc. According to the different application positions of the damping device, the types of the vibration source are also different. For example, the vibration source can be the air inlet pipeline of the air inlet system of the engine, the compressor of the air conditioning system, the condenser fan, etc.

[0040] Specifically, the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 can be rubber structural members. Of course, the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 can also be polyurethane (PU) elastic members, thermoplastic polyester elastic members (TPEE), or other elastic structural members. The types of the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 are not limited in the embodiment of the application.

[0041] When the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 are selected as rubber structural members, the rubber structural members can be selected as those with static stiffness of 10 N / m to 20 N / m, and the dynamic stiffness of 15 N / m to 35 N / m, so that the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 can have better strength while maintaining good elasticity.

[0042] This embodiment of the application sets the vibration damping device as a structure including a fixed bracket 100, an inner elastic body 200, an outer elastic body 300, and multiple elastic connecting ribs 400. The inner elastic body 200 is sleeved outside the fixed bracket 100, the outer elastic body 300 is sleeved outside the inner elastic body 200, and the elastic connecting ribs 400 connect the inner elastic body 200 and the outer elastic body 300. When the vibration damping device is installed between the intake pipe of the engine's intake system and the vehicle body, the fixed bracket 100 is fixed to the vehicle body, and the outer elastic body 300 is fixed to the vibration source (i.e., the intake pipe). Thus, the elastic buffering effect of the inner elastic body 200, the outer elastic body 300, and the multiple elastic connecting ribs 400 can alleviate the transmission of engine vibration to the vehicle body through the intake pipe, thereby alleviating the problem of excessive vehicle body vibration and reducing wear and fatigue damage to the intake pipe and other related components. This can improve the maintenance cycle and reduce maintenance costs.

[0043] Due to the combined structure of the inner elastic body 200, the outer elastic body 300, and the elastic connecting rib 400, the superimposed elastic effects of the three layers of elasticity (inner elastic body 200, outer elastic body 300, and elastic connecting rib 400) can significantly improve the lateral and vertical vibration damping performance of the vibration damping device (see reference). Figure 1 In this embodiment, the horizontal direction is horizontal and the vertical direction is vertical. Moreover, the outer elastomer 300 not only serves as a component providing elastic cushioning, but also as the mounting base for the vibration source, thus enabling the outer elastomer 300 to serve two purposes.

[0044] Specifically, the fixing bracket 100 can be a cylindrical body, such as a cylindrical or square cylindrical body. Preferably, the fixing bracket 100 is selected as a fixing bracket 100.

[0045] The vibration damping device disclosed in this application embodiment sets the fixed bracket 100 as a cylindrical body, which is beneficial to the weight reduction of the fixed bracket 100, thereby benefiting the weight reduction of the vibration damping device, and also facilitates the fixing of the fixed bracket 100 to the vehicle body.

[0046] Of course, the fixing bracket 100 can also be a solid structural component; for example, the fixing bracket 100 can be a solid cylindrical component. Choosing a solid structural component for the fixing bracket 100 can improve its strength. This application embodiment does not impose specific limitations on the structure of the fixing bracket 100.

[0047] Optionally, the fixing support 100 is a cylindrical body, and the inner layer elastic body 200 can be sleeved on the fixing support 100 in a fitting manner, for example, the inner layer elastic body 200 is connected with the fixing support 100 in an interference fit, or the inner surface of the inner layer elastic body 200 is connected with the outer surface of the fixing support 100 in an adhesive manner. The inner layer elastic body 200, the outer layer elastic body 300, and the plurality of elastic connecting ribs 400 can be connected together in an adhesive manner, a welding manner, or the like.

[0048] In order to improve the overall strength of the damping device and improve the stability of the cooperation between the inner layer elastic body 200 and the fixing support 100, optionally, the inner layer elastic body 200, the outer layer elastic body 300, and the plurality of elastic connecting ribs 400 can be integrally formed on the fixing support 100 through a vulcanization process. It should be noted that the vulcanization process is prior art, and the embodiments of the present application will not be specifically introduced.

[0049] The damping device disclosed in the embodiments of the present application integrally forms the inner layer elastic body 200, the outer layer elastic body 300, and the plurality of elastic connecting ribs 400 on the fixing support 100 through a vulcanization process, which not only improves the stability of the inner layer elastic body 200 and the fixing support 100, but also improves the strength of the overall structure formed by the inner layer elastic body 200, the outer layer elastic body 300, and the plurality of elastic connecting ribs 400, and improves the elastic recovery performance of the overall structure formed by the inner layer elastic body 200, the outer layer elastic body 300, and the plurality of elastic connecting ribs 400. Moreover, the inner layer elastic body 200, the outer layer elastic body 300, and the plurality of elastic connecting ribs 400 are integrally formed on the fixing support 100 through a vulcanization process, without the need for assembling other components, thereby reducing the number of components of the damping device.

[0050] In order to improve the uniformity of the damping device in the extension direction around the central axis of the fixing support 100, optionally, the fixing support 100 has a first end and a second end in the extension direction of the central axis of the fixing support 100. It should be noted that the central axis of the fixing support 100 refers to the central axis of the fixing support 100 in the through direction. The plurality of elastic connecting ribs 400 can include a plurality of first connecting ribs 410 and a plurality of second connecting ribs 420. The plurality of first connecting ribs 410 can be uniformly distributed in the direction around the central axis and can be arranged close to the first end of the fixing support 100. The plurality of second connecting ribs 420 can be uniformly distributed in the direction around the central axis and can be arranged close to the second end of the fixing support 100.

[0051] The damping device disclosed by the embodiments of the present application sets the plurality of elastic connecting ribs 400 in a structure comprising a plurality of first connecting ribs 410 and a plurality of second connecting ribs 420, and the plurality of first connecting ribs 410 are uniformly distributed along the direction surrounding the central axis and are arranged close to the first end of the fixed support 100, and the plurality of second connecting ribs 420 are uniformly distributed along the direction surrounding the central axis and are arranged close to the second end of the fixed support 100, so that by arranging two layers of connecting ribs surrounding and distributed in the extension direction of the central axis of the fixed support 100, not only the connection strength between the inner layer elastic body 200 and the outer layer elastic body 300 can be improved, but also the redundancy effect between the two layers of connecting ribs surrounding and distributed can be achieved when buffering vibration, so that the stability of the damping device can be improved, and the uniformity of the damping device in the extension direction of the central axis surrounding the fixed support 100 can be improved.

[0052] Specifically, in the extension direction of the central axis, the projection of the plurality of first connecting ribs 410 and the projection of the plurality of second connecting ribs 420 can correspond and coincide one by one. The damping device adopts the projection of the plurality of first connecting ribs 410 in the extension direction of the central axis and the projection of the plurality of second connecting ribs 420 in the extension direction of the central axis, so that the structure of the damping device is relatively simple, and then it is relatively easy to manufacture the vulcanization mold when the vulcanization process is performed on the damping device.

[0053] In order to further improve the uniformity of the damping device in the extension direction of the central axis surrounding the fixed support 100, optionally, in the extension direction of the central axis, the projection of the plurality of first connecting ribs 410 and the projection of the plurality of second connecting ribs 420 are sequentially staggered.

[0054] The damping device disclosed by the embodiments of the present application sets the projection of the plurality of first connecting ribs 410 in the extension direction of the central axis to sequentially stagger with the projection of the plurality of second connecting ribs 420 in the extension direction of the central axis, so that the arrangement density of the connecting ribs in the direction surrounding the central axis is increased, so that the uniformity of the damping device in the extension direction of the central axis surrounding the fixed support 100 can be further improved.

[0055] Specifically, the number of the first connecting ribs 410 and the second connecting ribs 420 can be between 5 and 15, for example, the first connecting ribs 410 and the second connecting ribs 420 can each be 6, and the number of the first connecting ribs 410 and the second connecting ribs 420 is not limited by the embodiments of the present application.

[0056] In the above embodiments, the projection of the plurality of first connecting ribs 410 and the projection of the plurality of second connecting ribs 420 are sequentially staggered, and the number of the first connecting ribs 410 and the number of the second connecting ribs 420 are equal.

[0057] In other embodiments, the number of the first connecting ribs 410 and the second connecting ribs 420 can also be unequal, for example, the number of the first connecting ribs 410 can be 6, and the number of the second connecting ribs 420 can be 8, and the number of the first connecting ribs 410 and the second connecting ribs 420 is not limited in the embodiments of the present application.

[0058] When the fixed support 100 is connected with the vehicle body, generally, the first end of the fixed support 100 or the second end of the fixed support 100 is in contact with the vehicle body. In order to avoid the problem that the outer elastic body 300 is in contact with the vehicle body in the limiting direction when the damping device is damped along the extension direction of the central axis of the fixed support 100, and the damping effect of the damping device is poor, optionally, in the plane parallel to the central axis, the projection of the outer elastic body 300 can be located within the projection of the inner elastic body 200, so that the buffer height H can be formed between the outer elastic body 300 and the inner elastic body 200.

[0059] It should be noted that the buffer height H can be formed between the outer elastic body 300 and the inner elastic body 200 on the side where the first end of the fixed support 100 is located, or on the side where the second end of the fixed support 100 is located, or on both sides. The present application does not limit the position of the buffer height H between the outer elastic body 300 and the inner elastic body 200. When the fixed support 100 is connected with the vehicle body, one end of the fixed support 100 adjacent to the buffer height H can be connected with the vehicle body, and when both ends of the fixed support 100 have the buffer height H, any one end of the fixed support 100 can be connected with the vehicle body. Among them, Figure 1 The embodiment shown is that the buffer height H is formed between the outer elastic body 300 and the inner elastic body 200 on the lower end of the fixed support 100, and the lower end of the fixed support 100 can be used to connect with the vehicle body.

[0060] The damping device disclosed in the embodiments of the present application is in the plane parallel to the central axis, so that the projection of the outer elastic body 300 is located within the projection of the inner elastic body 200, and the projection of the outer elastic body 300 and the projection of the inner elastic body 200 do not completely coincide, so that the buffer height H can be formed between the outer elastic body 300 and the inner elastic body 200, and when the damping device is connected with the vehicle body through the fixed support 100, the buffer height H is formed between the outer elastic body 300 and the vehicle body, so that when the damping device is damped along the extension direction of the central axis of the fixed support 100, the problem that the outer elastic body 300 is in contact with the vehicle body in the limiting direction and the damping effect of the damping device is poor can be avoided.

[0061] It should be noted that in the extension direction along the central axis of the fixed support 100, the maximum elastic movement of the outer elastic body 300 relative to the inner elastic body 200 is less than the buffer height H, so that the outer elastic body 300 can be prevented from contacting the vehicle body.

[0062] Optionally, at least one of the first connecting rib 410 and the second connecting rib 420 extends in the radial direction of the fixed support 100 and is inclined to the first end of the adjacent fixed support 100 or the second end of the fixed support 100.

[0063] Specifically, the first end of the first connecting rib 410 and the first end of the second connecting rib 420 can be connected with the inner elastic body 200, and the second end of the first connecting rib 410 and the second end of the second connecting rib 420 can be connected with the outer elastic body 300. The second end of the first connecting rib 410 can be inclined to the side where the first end of the fixed support 100 is located, or the second end of the second connecting rib 420 can be inclined to the side where the second end of the fixed support 100 is located, or the second end of the first connecting rib 410 is inclined to the side where the first end of the fixed support 100 is located, and the second end of the second connecting rib 420 is inclined to the side where the second end of the fixed support 100 is located.

[0064] The damping device disclosed in the embodiments of the present application can provide greater deformation capacity in different directions by extending at least one of the first connecting rib 410 and the second connecting rib 420 in the radial direction of the fixed support 100 and inclining to the first end of the adjacent fixed support 100 or the second end of the fixed support 100, so that the inclined connecting rib can not only provide greater deformation capacity in different directions, but also make the entire damping device better adapt to complex motion states such as bending and twisting, and the inclined design can more evenly distribute stress and reduce the possibility of local stress concentration, thereby reducing the risk of material fatigue and fracture.

[0065] Optionally, in the first connecting rib 410 and the second connecting rib 420, one can be inclined to the first end of the adjacent fixed support 100 or the second end of the fixed support 100, and the other can extend in a direction perpendicular to the central axis of the fixed support 100.

[0066] Since the inclined connecting rib not only can provide greater deformation capacity in different directions, but also makes the whole damping device better adapt to complex motion states such as bending, twisting and the like, and the inclined design can more evenly distribute stress and reduce the possibility of local stress concentration, thereby reducing the risk of material fatigue and fracture. The connecting rib perpendicular to the direction of the central axis of the fixed support 100 can provide stronger structural support, enhancing the overall rigidity and stability, ensuring the relative position of the inner elastomer 200 and the outer elastomer 300 is fixed, avoiding unnecessary movement. The damping device disclosed in the embodiments of the present application can fully utilize the advantages of the two structures by combining the inclined connecting rib and the vertical connecting rib, providing higher flexibility and stronger structural support.

[0067] Optionally, the angle (for example, angle α in FIG. 4B) between the first connecting rib 410 or the second connecting rib 420 and the central axis of the fixed support 100 can be greater than or equal to 40 degrees and less than or equal to 70 degrees. Figure 1

[0068] The damping device disclosed in the embodiments of the present application can avoid the problem that the angle between the first connecting rib 410 or the second connecting rib 420 and the central axis is too small, resulting in weak overall strength of the damping device, and can avoid the problem that the angle between the first connecting rib 410 or the second connecting rib 420 and the central axis is too large, resulting in poor flexibility of the damping device, by setting the angle between the first connecting rib 410 or the second connecting rib 420 and the central axis to be greater than or equal to 40 degrees and less than or equal to 70 degrees.

[0069] Of course, the angle between the first connecting rib 410 or the second connecting rib 420 and the central axis of the fixed support 100 can also be other ranges, for example, the angle between the first connecting rib 410 or the second connecting rib 420 and the central axis of the fixed support 100 can be greater than or equal to 45 degrees and less than or equal to 75 degrees, and the like, and the embodiments do not specifically limit the angle between the first connecting rib 410 or the second connecting rib 420 and the central axis of the fixed support 100.

[0070] Optionally, in a plane perpendicular to the direction from the first end of the first connecting rib 410 to the second end of the first connecting rib 410, the first connecting rib 410 has a first cross section, and in a plane perpendicular to the direction from the first end of the second connecting rib 420 to the second end of the second connecting rib 420, the second connecting rib 420 has a second cross section, and the area of the first cross section can be greater than the area of the second cross section.

[0071] ​It should be noted that the cross-sectional area of the connecting rib can be large to improve the overall strength of the damping device, and the cross-sectional area of the connecting rib can be small to improve the flexibility of the damping device. The damping device disclosed in the embodiments of the present application can have the first cross-sectional area of the first connecting rib 410 larger than the second cross-sectional area of the second connecting rib 420, so that the overall strength and flexibility of the damping device can be considered by the cooperation of the connecting ribs with different cross-sectional areas.

[0072] Specifically, the shape of the first cross-section of the first connecting rib 410 and the shape of the second cross-section of the second connecting rib 420 can be rectangular, circular, triangular, trapezoidal, etc. Please refer to Figure 4 and Figure 5 , Figure 4 It is shown that the shape of the second cross-section of the second connecting rib 420 is approximately trapezoidal, Figure 5 It is shown that the shape of the first cross-section of the first connecting rib 410 is rectangular. The embodiments of the present application do not make specific limitations on the shape of the first cross-section of the first connecting rib 410 and the shape of the second cross-section of the second connecting rib 420.

[0073] In order to improve the connection stability of the fixed support 100 and the inner elastic body 200, the fixed support 100 can have a limiting recess 101 between the first end of the fixed support 100 and the second end of the fixed support 100.

[0074] Please refer to Figure 1 Because the fixed support 100 has a limiting recess 101 between the first end of the fixed support 100 and the second end of the fixed support 100, the part of the fixed support 100 from the limiting recess 101 to the first end of the fixed support 100 and the part of the fixed support 100 from the limiting recess 101 to the second end of the fixed support 100 are trumpet-shaped, so that after the inner elastic body 200 is vulcanized on the fixed support 100, the inner elastic body 200 is not easy to be detached from the first end of the fixed support 100 or the second end of the fixed support 100, thereby improving the connection stability of the fixed support 100 and the inner elastic body 200.

[0075] Of course, in other embodiments, the fixed support 100 can be designed as a straight cylinder external boss structure, which can prevent the inner elastic body 200 from being detached from the fixed support 100 after the inner elastic body 200, the outer elastic body 300 and the plurality of elastic connecting ribs 400 are integrally formed on the fixed support 100 by the vulcanization process.

[0076] In order to facilitate the fixation of the vibration source, the outer side of the outer elastic body 300 can be provided with an annular mounting groove 310, which can be used to mount the mounting bracket 500 of the vibration source.

[0077] The damping device disclosed by the embodiments of the present application can be fixed to the outer layer elastic body 300 through the mounting bracket 500 by opening the annular mounting groove 310 on the outer side of the outer layer elastic body 300, so as to facilitate the fixation of the vibration source and the outer layer elastic body 300.

[0078] Of course, in other embodiments, the outer layer elastic body 300 can also be connected with the vibration source through other ways, for example, the vibration source can also be fixed to the outer layer elastic body 300 through a cable tie, a clamp, a tape and the like, so as to realize the fixation of the vibration source and the outer layer elastic body 300.

[0079] The present application also discloses a vehicle, and the disclosed vehicle comprises the damping device disclosed by the above embodiments. The fixing bracket 100 of the damping device can be fixed to the vehicle body (for example, the front longitudinal beam, the cross beam and the like) through welding, clamping, bolt connection and the like.

[0080] Specifically, the vehicle can also comprise an air intake pipeline of an air intake system of an engine, and the damping device is installed between the air intake pipeline of the air intake system of the engine and the vehicle body.

[0081] The vehicle disclosed by the embodiments of the present application is provided with the damping device disclosed by the above embodiments, and the damping device is arranged in a structure comprising the fixing bracket 100, the inner layer elastic body 200, the outer layer elastic body 300 and the plurality of elastic connecting ribs 400. The inner layer elastic body 200 is sleeved outside the fixing bracket 100, the outer layer elastic body 300 is sleeved outside the inner layer elastic body 200, and the elastic connecting rib 400 is connected between the inner layer elastic body 200 and the outer layer elastic body 300. When the damping device is installed between the air intake pipeline of the air intake system of the engine and the vehicle body, the fixing bracket 100 is fixed to the vehicle body, and the outer layer elastic body 300 is fixed with the vibration source. Therefore, through the elastic buffering effect of the inner layer elastic body 200, the outer layer elastic body 300 and the plurality of elastic connecting ribs 400, the vibration of the engine can be relieved from being transmitted to the vehicle body through the air intake pipeline, so as to relieve the problem of large vibration of the vehicle body, and relieve the wear and fatigue damage of the air intake pipeline and related components, thereby improving the maintenance period and reducing the maintenance cost.

[0082] Due to the combined structure of the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400, the lateral damping performance and the vertical damping performance of the damping device can be significantly improved under the superposition of the elastic effects of the three layers of the inner layer elastic body 200, the outer layer elastic body 300 and the elastic connecting rib 400 (for reference Figure 1 Embodiment, the lateral direction is the horizontal direction, and the vertical direction is the vertical direction). Moreover, the outer layer elastic body 300 not only serves as a component for providing elastic buffering, but also serves as a mounting base for the vibration source, so that the outer layer elastic body 300 has two functions.

[0083] The different optimization features between the various embodiments can be combined to form a better embodiment as long as they are not contradictory.

[0084] The embodiments of the utility model are described above in combination with the drawings, but the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative but not restrictive, and the ordinary skilled in the art can make many forms without departing from the purpose of the utility model and the scope protected by the claims under the inspiration of the utility model, which all belong to the protection of the utility model.

Claims

1. A vibration damping device characterized by comprising: The vibration damping device comprises a fixed support (100), an inner layer elastomer (200), an outer layer elastomer (300) and a plurality of elastic connecting ribs (400), wherein: The fixed support (100) is used for fixed connection with a vehicle body; The inner layer elastomer (200) is sleeved outside the fixed support (100); The outer layer elastomer (300) is sleeved outside the inner layer elastomer (200) and has a gap (201) with the inner layer elastomer (200), and the outer layer elastomer (300) is used for fixed connection with a vibration source; The plurality of elastic connecting ribs (400) are arranged in the gap (201) and connect the inner layer elastomer (200) and the outer layer elastomer (300).

2. The vibration damping device according to claim 1, characterized by The fixed support (100) is a cylindrical body, and the inner layer elastomer (200), the outer layer elastomer (300) and the plurality of elastic connecting ribs (400) are integrally formed on the fixed support (100) through a vulcanization process.

3. The vibration damping device according to claim 2, characterized by In the extension direction of the central axis of the fixed support (100), the fixed support (100) has a first end and a second end, the plurality of elastic connecting ribs (400) comprise a plurality of first connecting ribs (410) and a plurality of second connecting ribs (420), the plurality of first connecting ribs (410) are uniformly distributed in the direction around the central axis and are arranged close to the first end of the fixed support (100), and the plurality of second connecting ribs (420) are uniformly distributed in the direction around the central axis and are arranged close to the second end of the fixed support (100).

4. The vibration damping device according to claim 3, characterized by In the extension direction of the central axis, the projections of the plurality of first connecting ribs (410) and the projections of the plurality of second connecting ribs (420) are staggered in sequence.

5. The vibration damping device according to claim 3, characterized by In a plane parallel to the central axis, the projection of the outer layer elastomer (300) is located in the projection of the inner layer elastomer (200), so that a buffer height (H) is formed between the outer layer elastomer (300) and the inner layer elastomer (200).

6. The vibration damping device according to claim 5, characterized by At least one of the first connecting rib (410) and the second connecting rib (420) extends in the radial direction of the fixed support (100) and is inclined to the first end or the second end of the fixed support (100) close to the fixed support (100).

7. The vibration damping device according to claim 6, characterized by The angle between the first connecting rib (410) or the second connecting rib (420) and the central axis is greater than or equal to 40 degrees and less than or equal to 70 degrees.

8. The vibration damping device according to claim 3, characterized by The fixed support (100) has a limiting recess (101) between the first end of the fixed support (100) and the second end of the fixed support (100).

9. The vibration damping device according to claim 1, characterized by An annular mounting groove (310) is formed on the outer side of the outer layer elastomer (300), and the annular mounting groove (310) is used for mounting a mounting support (500) of the vibration source.

10. A vehicle characterized by comprising: The vibration damping device comprises any one of claims 1 to 9. The vibration damping device comprises any one of claims 1 to 9.

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