Suspension bushing, suspension system and vehicle

Abstract

The utility model relates to a suspension bushing, suspension system and vehicle, including inner skeleton, outer skeleton and rubber, said rubber is provided with in the radial direction between said inner skeleton and outer skeleton, said outer skeleton and / or inner skeleton is provided with extrusion part, extrusion part extrudes the rubber to reduce the deformation when rubber bears the working condition load. According to the suspension bushing, the rubber is extruded through the cooperation of the extrusion parts on the outer framework and / or the inner framework, so that the deformation of the rubber when the rubber bears working condition loads is reduced, the axial rigidity of the suspension bushing is improved, the modality of the suspension bushing is improved, and the NVH performance of the suspension bushing is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a suspension bushing, a suspension system, and a vehicle. Background Technology

[0002] In modern vehicle design, NVH optimization is not only about improving comfort, but also involves performance, safety, and the overall quality of the in-vehicle environment. As consumers demand higher levels of vehicle comfort, automakers are paying more and more attention to NVH optimization, and suspension bushings are one of the components that enhance NVH performance.

[0003] With the development of vehicle technology, the power performance of vehicles is constantly improving. The axial stiffness of the existing suspension bushing technology is low, which cannot meet the requirements of the vehicle in terms of torsional resistance and shock resistance under actual working conditions. Therefore, the existing suspension bushing technology cannot meet the NVH performance requirements of the vehicle. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a suspension bushing that can reduce the deformation of rubber under operating loads, thereby increasing the axial stiffness of the suspension bushing, which in turn improves the modal characteristics of the suspension bushing and enhances its NVH performance.

[0005] On the one hand, the present invention provides a suspension bushing, including an inner skeleton, an outer skeleton and rubber, wherein the rubber is disposed radially between the inner skeleton and the outer skeleton, and the outer skeleton and / or the inner skeleton is provided with a compression part, the compression part compressing the rubber to reduce the amount of deformation of the rubber when subjected to working load.

[0006] In one embodiment of this utility model, the extrusion part includes a first extrusion part and a second extrusion part. The first extrusion part is disposed on the outer frame, and the second extrusion part is disposed on the inner frame. The first extrusion part is a protrusion extending radially inward along the outer frame, and the second extrusion part is a groove extending radially inward along the inner frame; or the first extrusion part is a groove extending radially outward along the outer frame, and the second extrusion part is a protrusion extending radially outward along the inner frame; or the first extrusion part is a protrusion extending radially inward along the outer frame, and the second extrusion part is a protrusion extending radially outward along the inner frame.

[0007] In one embodiment of the present invention, the inner skeleton includes a first inner skeleton and a second inner skeleton, the second inner skeleton being sleeved on the first inner skeleton, the first inner skeleton being made of metal material, and the second inner skeleton, rubber and outer skeleton being made of non-metallic material.

[0008] In one embodiment of this utility model, both the outer frame and the inner frame are provided with weight-reducing grooves.

[0009] In one embodiment of the present invention, a limiting mechanism is provided on the outer frame and / or inner frame, and a third extrusion part is provided on the limiting mechanism, the third extrusion part being used to extrude the rubber along the rubber axis.

[0010] In one embodiment of the present invention, the limiting mechanism is slidably disposed at both ends of the outer frame and / or inner frame, and the two limiting mechanisms are disposed relatively close to or far apart along the rubber axis.

[0011] In one embodiment of this utility model, a plurality of grooves are provided on the end face of the rubber, and a support leg is formed between any two adjacent grooves. The rubber has different specifications, and the groove volume of the rubber with different specifications is different.

[0012] In one embodiment of this utility model, the outer skeleton and the inner skeleton each have different size specifications and / or shape specifications; the outer skeleton or inner skeleton of different size specifications has different protrusion heights or different groove depths, and / or, the outer skeleton or inner skeleton of different shape specifications has different protrusion shapes or different groove shapes; the protrusion of any size specification and / or shape specification cooperates with the groove or protrusion of the corresponding size specification and / or shape specification to compress the rubber.

[0013] On the other hand, a suspension system is provided, including the aforementioned suspension bushing.

[0014] On the other hand, a vehicle is provided, including the aforementioned suspension bushing or the aforementioned suspension system.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] This invention uses the extrusion section on the outer frame and / or the extrusion section on the inner frame to extrude the rubber, thereby reducing the axial deformation of the rubber under working load, increasing the axial stiffness of the suspension bushing, and thus improving the modal characteristics of the suspension bushing and enhancing its NVH performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of the suspension bushing of this utility model;

[0019] Figure 2 This is an exploded view of the suspension bushing of this utility model;

[0020] Figure 3 This is a cross-sectional view of the suspension bushing of this utility model;

[0021] Figure 4 This is a first structural schematic diagram of the outer skeleton of the suspension bushing of this utility model;

[0022] Figure 5 This is a schematic diagram of the second structure of the outer skeleton of the suspension bushing of this utility model;

[0023] Figure 6 This is a schematic diagram of the second inner skeleton of the suspension bushing of this utility model;

[0024] Figure 7 This is a schematic diagram of the first mating between the outer skeleton protrusion and the inner skeleton groove of the suspension bushing of this utility model.

[0025] Figure 8 This is a schematic diagram of the second mating between the outer skeleton protrusion and the inner skeleton groove of the suspension bushing of this utility model.

[0026] Figure 9 This is a schematic diagram of the third fit between the outer skeleton protrusion and the inner skeleton groove of the suspension bushing of this utility model.

[0027] Figure 10 This is a schematic diagram of the first mating of the outer skeleton groove and the inner skeleton protrusion of the suspension bushing of this utility model.

[0028] Figure 11 This is a schematic diagram of the second mating between the outer skeleton groove and the inner skeleton protrusion of the suspension bushing of this utility model.

[0029] Figure 12 This is a schematic diagram of the third fit between the outer skeleton groove and the inner skeleton protrusion of the suspension bushing of this utility model.

[0030] Figure 13 This is a schematic diagram of the first mating of the outer skeleton protrusion and the inner skeleton protrusion of the suspension bushing of this utility model.

[0031] Figure 14 This is a schematic diagram of the second mating of the outer skeleton protrusion and the inner skeleton protrusion of the suspension bushing of this utility model.

[0032] Figure 15 This is a schematic diagram of the third mating of the outer skeleton protrusion and the inner skeleton protrusion of the suspension bushing of this utility model.

[0033] Figure 16This is a structural diagram showing the different shapes of the outer and inner skeletons of the suspension bushing of this utility model.

[0034] Figure 17 This is a schematic diagram of the suspension bushing setting limit mechanism of this utility model.

[0035] Explanation of reference numerals in the instruction manual:

[0036] 1. Inner frame; 2. Outer frame; 3. Rubber; 4. Extrusion section; 5. First extrusion section; 6. Second extrusion section; 7. First inner frame; 8. Second inner frame; 9. First weight reduction groove; 10. Second weight reduction groove; 11. Limiting mechanism; 12. Third extrusion section; 13. Groove; 14. Support leg. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages 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, and 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 scope of protection of this utility model.

[0038] Example 1

[0039] Reference Figures 1 to 17 As shown, the suspension bushing of this utility model includes an inner skeleton 1, an outer skeleton 2 and a rubber 3. The rubber 3 is radially disposed between the inner skeleton 1 and the outer skeleton 2. The outer skeleton 2 and / or the inner skeleton 1 are provided with a compression part 4. The compression part 4 compresses the rubber 3 to reduce the deformation of the rubber 3 when subjected to working load.

[0040] The suspension bushing of this application uses the extrusion section 4 on the outer skeleton 2 and / or inner skeleton 1 to compress the rubber 3, thereby reducing the deformation of the rubber 3 under working loads and improving the rubber 3's resistance to elastic deformation, that is, improving the axial stiffness of the suspension bushing. Specifically, as shown... Figure 1 , Figure 2 and Figure 3As shown, the suspension bushing includes an inner skeleton 1, an outer skeleton 2, and rubber 3. Rubber 3 is fitted onto the inner skeleton 1, and the outer skeleton 2 is fitted onto the rubber 3, with the inner skeleton 1, outer skeleton 2, and rubber 3 arranged coaxially. Furthermore, a compression part 4 can be provided on the outer skeleton 2. The compression part 4 on the outer skeleton 2 compresses the rubber 3 located between the outer skeleton 2 and the inner skeleton 1, reducing the axial deformation of the rubber 3 under operating loads. This further reduces the axial displacement of the outer skeleton 2 relative to the inner skeleton 1 when the suspension bushing is under axial load, improving the axial stiffness of the suspension bushing, thereby improving the modal characteristics of the suspension bushing and enhancing its NVH performance. Alternatively, an extrusion section 4 can be provided on the inner frame 1. This extrusion section 4 on the inner frame 1 compresses the rubber 3 located between the outer frame 2 and the inner frame 1, reducing the axial deformation of the rubber 3 under operating loads. This further reduces the axial displacement of the outer frame 2 relative to the inner frame 1 when the suspension bushing is under axial load, increasing the axial stiffness of the suspension bushing and thus improving its modal characteristics and NVH performance. Alternatively, extrusion sections 4 can be provided on both the outer frame 2 and the inner frame 1. The extrusion sections 4 on the outer frame 2 and the inner frame 1 together compress the rubber 3, reducing the axial deformation of the rubber 3 under operating loads. This further reduces the axial displacement of the outer frame 2 relative to the inner frame 1 when the suspension bushing is under axial load, increasing the axial stiffness of the suspension bushing and thus improving its modal characteristics and NVH performance. In addition, the deformation of rubber 3 includes not only axial deformation but also radial deformation. Therefore, the extrusion section 4 can reduce the axial and radial deformation of rubber 3 when it is subjected to working loads. This allows rubber 3 to increase the radial stiffness of the suspension bushing while being extruded by the extrusion section 4, thereby further improving the NVH performance of the suspension bushing.

[0041] In one embodiment, the extrusion part 4 includes a first extrusion part 5 and a second extrusion part 6. The first extrusion part 5 is disposed on the outer frame 2, and the second extrusion part 6 is disposed on the inner frame 1. The first extrusion part 5 is a protrusion extending radially inward along the outer frame 2, and the second extrusion part 6 is a groove extending radially inward along the inner frame 1; or the first extrusion part 5 is a groove extending radially outward along the outer frame 2, and the second extrusion part 6 is a protrusion extending radially outward along the inner frame 1; or the first extrusion part 5 is a protrusion extending radially inward along the outer frame 2, and the second extrusion part 6 is a protrusion extending radially outward along the inner frame 1.

[0042] The extrusion section 4 of this application includes a first extrusion section 5 and a second extrusion section 6. The first extrusion section 5 is disposed on the outer frame 2, and the second extrusion section 6 is disposed on the inner frame 1. The first extrusion section 5 and the second extrusion section 6 cooperate to extrude rubber 3 to reduce the axial deformation of rubber 3 under working load, thereby improving the axial stiffness of the suspension bushing, and further improving the modal characteristics of the suspension bushing, thus enhancing the NVH performance of the suspension bushing. Specifically, the technical solution of the first extrusion section 5 and the second extrusion section 6 cooperating to extrude rubber 3 includes three extrusion methods. For example... Figure 7 , Figure 8 and Figure 9 The first extrusion method shown: the first extrusion part 5 is a protrusion extending radially inward along the outer frame 2, and the second extrusion part 6 is a groove recessed radially inward along the inner frame 1. Through the protrusion of the first extrusion part 5 and the groove of the second extrusion part 6, the middle part of the rubber 3 is extruded radially inward, causing a certain amount of deformation in the rubber 3. This correspondingly reduces the axial deformation of the rubber 3 under operating loads, improves the axial stiffness of the suspension bushing, enhances the modal characteristics of the suspension bushing, and improves the NVH performance of the suspension bushing. Figure 10 , Figure 11 and Figure 12 The second extrusion method shown: the first extrusion part 5 is a groove recessed radially outward along the outer frame 2, and the second extrusion part 6 is a protrusion extending radially outward along the inner frame 1. Through the groove of the first extrusion part 5 and the protrusion of the second extrusion part 6, the middle part of the rubber 3 is extruded radially outward, causing a certain amount of deformation in the rubber 3. This correspondingly reduces the axial deformation of the rubber 3 under operating loads, improves the axial stiffness of the suspension bushing, enhances the modal characteristics of the suspension bushing, and improves the NVH performance of the suspension bushing. Figure 13 , Figure 14 and Figure 15 The third extrusion method shown is as follows: the first extrusion part 5 is a protrusion extending radially inward along the outer frame 2, and the second extrusion part 6 is a protrusion extending radially outward along the inner frame 1. The protrusions of the first extrusion part 5 and the second extrusion part 6 work together to extrude the rubber 3, causing the rubber 3 to produce a certain amount of deformation. This reduces the axial deformation of the rubber 3 under working load, improves the axial stiffness of the suspension bushing, improves the modal characteristics of the suspension bushing, and enhances the NVH performance of the suspension bushing.

[0043] In one embodiment, the inner skeleton 1 includes a first inner skeleton 7 and a second inner skeleton 8, the second inner skeleton 8 being sleeved on the first inner skeleton 7, the first inner skeleton 7 being made of metal material, and the second inner skeleton 8, rubber 3 and outer skeleton 2 being made of non-metallic material.

[0044] like Figure 1 , Figure 2 and Figure 3As shown, the inner frame 1 of this application includes a first inner frame 7 and a second inner frame 8. The first inner frame 7 is used to connect with mechanisms such as transmissions, motors, or engines. The second inner frame 8 is used to connect with rubber 3 and the outer frame 2. The outer frame 2 is used to connect with the vehicle frame. The suspension bushing improves the vehicle's NVH performance. Specifically, the first inner frame 7 is made of metal, thus increasing the overall rigidity of the suspension bushing. The second inner frame 8, rubber 3, and outer frame 2 are all made of non-metallic materials, thus reducing the weight of the suspension bushing and achieving lightweight design. Therefore, the suspension bushing of this application can achieve lightweight design while maintaining rigidity.

[0045] In one embodiment, both the outer frame 2 and the inner frame 1 are provided with weight reduction grooves.

[0046] The suspension bushing of this application can achieve weight reduction. Specifically, the weight reduction groove includes a first weight reduction groove 9 and a second weight reduction groove 10, such as... Figure 4 and Figure 6 As shown, a first weight-reducing groove 9 can be provided on the outer circumference of the outer frame 2 where there are no protrusions. This first weight-reducing groove 9 reduces the weight of the outer frame 2, thereby reducing the weight of the suspension bushing. Furthermore, second weight-reducing grooves 10 can be provided at both ends of the inner frame 1 along its axial direction. These second weight-reducing grooves 10 also reduce the weight of the inner frame 1, thereby reducing the weight of the suspension bushing. With the use of the first and second weight-reducing grooves 9 and the non-metallic material, extreme lightweighting of the suspension bushing can be achieved.

[0047] In one embodiment, a limiting mechanism 11 is provided on the outer frame 2 and / or the inner frame 1, and a third extrusion part 12 is provided on the limiting mechanism 11. The third extrusion part 12 is used to extrude the rubber 3 along the axial direction of the rubber 3.

[0048] like Figure 17As shown, this application further improves the axial stiffness of the suspension bushing by compressing the rubber 3 through the limiting mechanisms 11 at both ends of the outer frame 2 and / or the inner frame 1. Specifically, the limiting mechanism 11 can be set on the inner frame 1, or on the outer frame 2, or simultaneously on both the inner frame 1 and the outer frame 2 through corresponding mechanisms. It can also be set on a frame or other mechanism. The limiting mechanism 11 is provided with a third compression part 12. In addition to compressing the rubber 3 through the first compression part 5 on the outer frame 2 and the second compression part 6 on the inner frame 1, the third compression part 12 on the limiting mechanism 11 can further compress the rubber 3 to further reduce the axial deformation of the rubber 3 under operating loads, thereby further improving the axial stiffness of the suspension bushing. The limiting mechanism 11 can be a limiting plate structure. The limiting mechanism 11 has different specifications, and the axial height of the third extrusion section 12 varies with the specifications. Therefore, the axial extrusion amount exerted on the rubber 3 by the third extrusion section 12 with different axial heights varies, resulting in different resistance to deformation of the extruded rubber 3 and consequently different axial stiffness of the rubber 3. Furthermore, while bearing the extrusion of the third extrusion section 12, the radial stiffness of the suspension bushing also increases accordingly, further improving the NVH performance of the suspension bushing.

[0049] In one embodiment, the limiting mechanism 11 is slidably disposed at both ends of the outer frame 2 and / or the inner frame 1, and the two limiting mechanisms 11 are disposed relatively close to or far apart from each other along the axial direction of the rubber 3.

[0050] This application adjusts the axial stiffness of the suspension bushing by moving the limiting mechanism 11. Specifically, the limiting mechanism 11 includes two mechanisms, which are respectively disposed at both ends of the outer frame 2 and / or the inner frame 1. The two limiting mechanisms 11 are preferably aligned along the axial direction of the inner frame 1 and symmetrically arranged about the inner frame 1. The axial distance between the two limiting mechanisms 11 is adjustable. This adjustment can be achieved through mechanisms such as bolts. Specifically, by bringing the two limiting mechanisms 11 closer together, the compression of the rubber 3 by the third extrusion part 12 on the limiting mechanism 11 increases, thus reducing the axial deformation of the rubber 3 under working loads and further improving the axial stiffness of the suspension bushing. It also reduces the radial deformation of the rubber 3 under working loads, thereby improving the radial stiffness of the suspension bushing. Conversely, by moving the two limiting mechanisms 11 further apart, the compression of the rubber 3 by the third extrusion part 12 on the limiting mechanism 11 decreases, thus increasing the axial deformation of the rubber 3 under working loads and further reducing the axial stiffness of the suspension bushing. It also increases the radial deformation of the rubber 3 under working loads, thereby reducing the radial stiffness of the suspension bushing. Therefore, the axial and radial stiffness of the suspension bushing can be adjusted to adapt to different working scenarios. The limiting mechanisms can be made of metal or non-metal materials.

[0051] In one embodiment, a plurality of grooves 13 are provided on the end face of the rubber 3, and a support leg 14 is formed between any two adjacent grooves 13. The rubber 3 has different specifications, and the grooves 13 of the rubber 3 of different specifications have different volumes.

[0052] This application achieves radial stiffness adjustment by setting the volume of the groove 13. Specifically, as shown... Figure 5As shown, a plurality of grooves 13 are provided on the two end faces of the rubber 3 along its axial direction, and the grooves 13 are arranged in a circular array around the axis of the rubber 3. A support leg 14 is formed between any two adjacent grooves 13, and the support leg 14 is supported between the inner and outer rings of the rubber 3. When the volume of the grooves 13 on the rubber 3 is large, the corresponding volume of the support leg 14 is small. The smaller volume of the support leg 14 supported between the inner and outer rings will reduce the radial stiffness of the rubber 3, and further reduce the radial stiffness of the suspension bushing. When the volume of the grooves 13 on the rubber 3 is small, the corresponding volume of the support leg 14 is large. The larger volume of the support leg 14 supported between the inner and outer rings will increase the radial stiffness of the rubber 3, and further increase the radial stiffness of the suspension bushing. The rubber 3 has different specifications, and the grooves 13 of different specifications of the rubber 3 have different volume specifications, so as to adjust the radial stiffness of the suspension bushing by using different specifications of rubber 3. Therefore, this application can configure different axial stiffnesses for the rubber 3 by combining the outer skeleton 2 and / or inner skeleton 1 with different size and shape specifications, and can also configure different radial stiffnesses for the rubber 3 by setting the volume of the groove 13 on the rubber 3, thus realizing flexible configuration of triaxial stiffness.

[0053] In one embodiment, the outer skeleton 2 or inner skeleton 1 has different size specifications, and the outer skeleton 2 or inner skeleton 1 of different size specifications has different protrusion heights or different groove depths. The protrusion of any size specification cooperates with the groove or protrusion of the corresponding size specification to compress the rubber 3.

[0054] The outer skeleton 2 and inner skeleton 1 of this application both have different dimensions. Different dimensions of the outer skeleton 2 and / or inner skeleton 1 result in different compression amounts on the rubber 3, thus altering the rubber 3's resistance to deformation and consequently changing the axial stiffness of the suspension bushing. Specifically, different dimensions of the outer skeleton 2 refer to different protrusion heights or different groove depths; different dimensions of the inner skeleton 1 refer to different protrusion heights or different groove depths. Figure 7 , Figure 8 and Figure 9 As shown, this corresponds to the first type of extrusion. Figure 7 The height H1 of the protrusion of the exoskeleton 2 in Figure a is greater than Figure 7 The height H0 of the protrusion of the exoskeleton 2 in Figure b is... Figure 7 The groove depth L1 of the inner skeleton 1 in Figure a is less than Figure 7 The groove depth L0 of the inner skeleton 1 in Figure b is therefore... Figure 7 The compression amount exerted on the rubber 3 by the first extrusion section 5 of the outer skeleton 2 and the second extrusion section 6 of the inner skeleton 1 in Figure a is the first extrusion amount. Figure 7In Figure b, the compression amount exerted on the rubber 3 by the first extrusion section 5 of the outer skeleton 2 and the second extrusion section 6 of the inner skeleton 1 is the second extrusion amount. If the first extrusion amount is greater than the second extrusion amount, then... Figure 7 The suspension bushing in Figure a has strong resistance to deformation, that is... Figure 7 The axial stiffness in Figure a is greater than Figure 7 The axial stiffness in diagram b; or as shown in Figure b Figure 8 As shown, with the protrusion height H0 of the exoskeleton 2 remaining constant, Figure 8 The groove depth L1 of the inner skeleton 1 in Figure a is less than Figure 8 If the groove depth L0 of the inner skeleton 1 of b is then... Figure 8 The axial stiffness in Figure a is greater than Figure 8 The axial stiffness in diagram b; or as shown in Figure b Figure 9 As shown, with the groove depth L0 of the inner skeleton 1 remaining constant, Figure 9 The height H1 of the protrusion of the exoskeleton 2 in Figure a is greater than Figure 9 If the height H0 of the protrusion of the exoskeleton 2 in Figure b is then... Figure 9 The axial stiffness in Figure a is greater than Figure 9 The axial stiffness in diagram b. For example... Figure 10 , Figure 11 and Figure 12 As shown, this corresponds to the second extrusion method. Figure 10 The height H1 of the protrusion of the endoskeleton 1 in Figure b is greater than... Figure 10 The height H0 of the protrusion of the inner skeleton 1 in Figure a is... Figure 10 The groove depth L1 of the exoskeleton 2 in Figure b is less than Figure 10 The groove depth L0 of the exoskeleton 2 in Figure a is therefore... Figure 10 In Figure b, the compression amount of the first extrusion section 5 of the outer skeleton 2 and the second extrusion section 6 of the inner skeleton 1 on the rubber 3 is the third compression amount. Figure 10 In Figure a, the compression amount exerted on the rubber 3 by the first extrusion section 5 of the outer skeleton 2 and the second extrusion section 6 of the inner skeleton 1 is the fourth compression amount. Since the third compression amount is greater than the fourth compression amount, then... Figure 10 The suspension bushing in Figure b has strong resistance to deformation, that is... Figure 10 The axial stiffness in diagram b is greater than Figure 10 The axial stiffness in Figure a; or as shown in Figure a Figure 11 As shown, with the groove depth L0 of the exoskeleton 2 remaining constant, Figure 11 The height H1 of the protrusion of the endoskeleton 1 in Figure b is greater than... Figure 11 If the height H0 of the protrusion of the inner skeleton 1 in Figure a is then... Figure 11 The axial stiffness in diagram b is greater than Figure 11 The axial stiffness in Figure a; or as shown in Figure a Figure 12 As shown, with the height H0 of the protrusion of the inner skeleton 1 remaining constant, Figure 12The groove depth L1 of the exoskeleton 2 in Figure b is less than Figure 12 If the groove depth L0 of the exoskeleton 2 in Figure a is then... Figure 12 The axial stiffness in diagram b is greater than Figure 12 The axial stiffness in diagram a corresponds to the third type of compression. Figure 13 The height H1 of the protrusion of the endoskeleton 1 in Figure b is greater than... Figure 13 The height H0 of the protrusion of the inner skeleton 1 in Figure a is... Figure 13 The height H1 of the protrusion of the exoskeleton 2 in Figure b is greater than Figure 13 The height H0 of the protrusion of the exoskeleton 2 in Figure a is therefore... Figure 13 In Figure b, the compression amount of the first extrusion section 5 of the outer skeleton 2 and the second extrusion section 6 of the inner skeleton 1 on the rubber 3 is the fifth compression amount. Figure 13 In Figure a, the compression amount exerted on the rubber 3 by the first extrusion section 5 of the outer skeleton 2 and the second extrusion section 6 of the inner skeleton 1 is the sixth compression amount. Since the fifth compression amount is greater than the sixth compression amount, then... Figure 13 The suspension bushing in Figure b has strong resistance to deformation, that is... Figure 13 The axial stiffness in diagram b is greater than Figure 13 The axial stiffness in Figure a; or as shown in Figure a Figure 14 As shown, with the protrusion height H0 of the exoskeleton 2 remaining constant, Figure 14 The height H1 of the protrusion of the endoskeleton 1 in Figure b is greater than... Figure 14 If the height H0 of the protrusion of the inner skeleton 1 in Figure a is then... Figure 14 The axial stiffness in diagram b is greater than Figure 14 The axial stiffness in Figure a; or as shown in Figure a Figure 15 As shown, with the height H0 of the protrusion of the inner skeleton 1 remaining constant, Figure 14 The height H1 of the protrusion of the exoskeleton 2 in Figure b is greater than Figure 14 If the height H0 of the protrusion of the exoskeleton 2 in Figure a is then... Figure 14 The axial stiffness in diagram b is greater than Figure 14 Axial stiffness in Figure a.

[0055] In one embodiment, the outer skeleton 2 or the inner skeleton 1 has different shapes and specifications. The outer skeleton 2 and the inner skeleton 1 with different shapes and specifications have different protrusion shapes or different groove shapes. The protrusion of any shape and specification cooperates with the groove or protrusion of the corresponding shape and specification to compress the rubber 3.

[0056] The outer skeleton 2 and inner skeleton 1 of this application have different specifications. The protrusions or grooves of the outer skeleton 2 and / or inner skeleton 1 of different specifications have different shapes. The rubber 3 compressed by the different shapes of protrusions and grooves, or the different shapes of protrusions, has different resistance to deformation, so as to achieve the adjustment of the axial stiffness and radial stiffness of the suspension bushing. Specifically, as shown in the example... Figure 16The shape shown, with the protrusion height and groove depth remaining consistent, Figure 16 The suspension bushing in Figure b has a greater resistance to deformation than Figure 16 The ability of the suspension bushing in Figure a to resist deformation, i.e. Figure 16 The axial stiffness in diagram b is greater than Figure 16 The axial stiffness is shown in Figure a. Furthermore, the shape of the protrusions or grooves, combined with their height and depth, can form different combinations of suspension bushings. These combinations result in different axial and radial stiffnesses, which can be configured according to actual needs to allow the suspension bushings to withstand different axial and radial loads. Further, the protrusions and grooves can also be rectangular, elliptical, or other shapes. Moreover, the shape and size specifications of the outer skeleton 2 or the inner skeleton 1 can be combined; that is, a protrusion of any shape can be combined with a groove or protrusion of a corresponding size to compress the rubber 3, or a protrusion of any size can be combined with a groove or protrusion of a corresponding shape to compress the rubber 3.

[0057] Example 2

[0058] A suspension system is provided, the suspension system including the above-mentioned suspension bushing, the suspension bushing including an inner skeleton 1, an outer skeleton 2 and a rubber 3, the rubber 3 being disposed between the inner skeleton 1 and the outer skeleton 2, the outer skeleton 2 and / or the inner skeleton 1 being provided with a compression part 4, the compression part 4 compressing the rubber 3 to reduce the deformation of the rubber 3 when subjected to working load.

[0059] The suspension bushing of this application can reduce the deformation of the rubber 3 under working load by providing the extrusion part 4 on the outer frame 2 and / or inner frame 1, thereby increasing the axial stiffness of the suspension bushing, improving the modal characteristics of the suspension bushing, and thus improving the NVH performance of the suspension system.

[0060] Example 3

[0061] A vehicle is provided, the vehicle including the above-described suspension bushing or the above-described suspension system.

[0062] Specifically, the vehicle includes a suspension system, which includes a suspension bushing. The suspension bushing includes an inner frame 1, an outer frame 2, and a rubber 3. The rubber 3 is disposed between the inner frame 1 and the outer frame 2. The outer frame 2 and / or the inner frame 1 are provided with a compression part 4, which compresses the rubber 3 to reduce the deformation of the rubber 3 when subjected to working loads.

[0063] The suspension bushing of this application can reduce the deformation of the rubber 3 under working load by providing the extrusion part 4 on the outer frame 2 and / or inner frame 1, thereby increasing the axial stiffness of the suspension bushing, improving the modal performance of the suspension bushing, and thus improving the NVH performance of the suspension system and the vehicle.

[0064] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A suspension bushing, characterized in that: It includes an inner skeleton (1), an outer skeleton (2) and rubber (3), the rubber (3) is arranged radially between the inner skeleton (1) and the outer skeleton (2), and the outer skeleton (2) and / or the inner skeleton (1) are provided with extrusion parts (4), the extrusion parts (4) extrude the rubber (3) to reduce the amount of deformation of the rubber (3) when subjected to working load.

2. The suspension bushing according to claim 1, characterized in that: The extrusion part (4) includes a first extrusion part (5) and a second extrusion part (6). The first extrusion part (5) is disposed on the outer frame (2), and the second extrusion part (6) is disposed on the inner frame (1). The first extrusion part (5) is a protrusion extending radially inward along the outer frame (2), and the second extrusion part (6) is a groove extending radially inward along the inner frame (1); or the first extrusion part (5) is a groove extending radially outward along the outer frame (2), and the second extrusion part (6) is a protrusion extending radially outward along the inner frame (1); or the first extrusion part (5) is a protrusion extending radially inward along the outer frame (2), and the second extrusion part (6) is a protrusion extending radially outward along the inner frame (1).

3. The suspension bushing according to claim 1, characterized in that: The inner frame (1) includes a first inner frame (7) and a second inner frame (8). The second inner frame (8) is fitted onto the first inner frame (7). The first inner frame (7) is made of metal material, while the second inner frame (8), rubber (3), and outer frame (2) are all made of non-metallic material.

4. The suspension bushing according to claim 1, characterized in that: Both the outer frame (2) and the inner frame (1) are provided with weight reduction grooves.

5. The suspension bushing according to claim 1, characterized in that: The outer frame (2) and / or inner frame (1) are provided with a limiting mechanism (11), and the limiting mechanism (11) is provided with a third extrusion part (12), which is used to extrude the rubber (3) along the axial direction of the rubber (3).

6. The suspension bushing according to claim 5, characterized in that: The limiting mechanism (11) is slidably disposed at both ends of the outer frame (2) and / or the inner frame (1), and the two limiting mechanisms (11) are disposed relatively close to or far apart along the axial direction of the rubber (3).

7. The suspension bushing according to claim 1, characterized in that: The rubber (3) has several grooves (13) on its end face, and a support leg (14) is formed between any two adjacent grooves (13). The rubber (3) has different specifications, and the grooves (13) of the rubber (3) of different specifications have different volumes.

8. The suspension bushing according to claim 2, characterized in that: The outer skeleton (2) and inner skeleton (1) each have different size specifications and / or shape specifications; the outer skeleton (2) or inner skeleton (1) of different size specifications have different protrusion heights or different groove depths, and / or, the outer skeleton (2) or inner skeleton (1) of different shape specifications have different protrusion shapes or different groove shapes; the protrusion of any size specification and / or shape specification cooperates with the corresponding size specification and / or shape specification groove or protrusion to compress the rubber (3).

9. A suspension system, characterized in that: Includes the suspension bushing as described in any one of claims 1-8.

10. A vehicle, characterized in that: Includes the suspension bushing as described in any one of claims 1-8 or the suspension bushing as described in claim 9.

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