Rubber jacking structure, vehicle shock absorber and vehicle

Abstract

The embodiment of the utility model relates to the technical field of automobile shock absorbers, and discloses a top rubber structure, a vehicle shock absorber and a vehicle. The top rubber structure comprises an outer framework, an inner framework, a top rubber layer, a top rubber layer and a top rubber layer, the vibration reduction lining is provided with an axial through hole and a limiting groove located in the inner side wall of the axial through hole, the vibration reduction lining is arranged in the cavity, and the axial through hole communicates with the opening; the outer side wall of the inner framework is provided with a limiting protrusion matched with the limiting groove, the inner framework is arranged in the axial through hole, and the limiting protrusion is matched with the limiting groove; and the baffle is arranged on the opening and used for limiting the movement range of the vibration reduction bushing. According to the embodiment of the invention, through mutual matching of the limiting bulge and the limiting groove, the vibration reduction bushing can have different rigidity characteristics when subjected to different compression deformations, so that the riding comfort of a vehicle when subjected to small vibration can be improved, and the safety of the vehicle when subjected to large impact can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of automobile shock absorbers, and in particular to a top rubber structure, a vehicle shock absorber and a vehicle. Background Art

[0002] The shock absorber top glue (also called shock absorber buffer block or shock absorber pad) is an important component in the automobile suspension system. Since the shock absorber top glue is usually made of rubber, it can absorb the impact and vibration from the road surface and improve the driving stability and ride comfort of the vehicle.

[0003] However, since the rubber part of the current shock absorber top glue is usually a cylindrical structure, the shock absorber top glue will have a large initial stiffness, which will affect the ride comfort of the entire vehicle. Utility Model Content

[0004] In view of this, the embodiments of the present application provide a top rubber structure, a vehicle shock absorber and a vehicle to solve the problem in the related art that the initial stiffness of the shock absorber top rubber is relatively large, which affects the ride comfort of the entire vehicle.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a top glue structure, including:

[0007] An exoskeleton having a cavity and an opening communicating with the cavity;

[0008] A vibration-damping bushing, provided with an axial through hole and a limiting groove on the inner side wall of the axial through hole, wherein the vibration-damping bushing is arranged in the cavity and the axial through hole is communicated with the opening;

[0009] An inner frame, an outer side wall of which is provided with a limiting protrusion matched with the limiting groove, the inner frame is arranged in the axial through hole and the limiting protrusion matches with the limiting groove, so that the vibration damping bushing has a lower rigidity when the compression deformation is smaller, and has a larger rigidity when the compression deformation is larger;

[0010] A baffle is arranged on the opening and is used to limit the movement range of the vibration-damping bushing.

[0011] The embodiment of the present application can make the vibration-damping bushing have different stiffness characteristics when subjected to different compression deformations through the cooperation of the limiting protrusion and the limiting groove. Specifically, when the vibration-damping bushing is subjected to a smaller compression deformation, the interaction between the limiting protrusion and the limiting groove is smaller, and the vibration-damping bushing will show a lower stiffness, so the top glue structure can effectively absorb or reduce vibrations, and improve the ride comfort of the vehicle when subjected to small vibrations; and when the vibration-damping bushing is subjected to a larger compression deformation, the interaction between the limiting protrusion and the limiting groove is enhanced, and the vibration-damping bushing will show a larger stiffness, so that the top glue structure can better withstand large impacts, and improve the safety of the vehicle when subjected to large impacts.

[0012] In a possible implementation of the present application, the shape of the inner skeleton is matched to the shape of the axial through hole, and the limiting groove and the limiting protrusion extend radially along the axial through hole.

[0013] In a possible implementation of the present application, the limiting groove and the limiting protrusion are both arranged in a ring shape.

[0014] In a possible implementation of the present application, the vibration-damping bushing includes a pair of buffer portions and a connecting portion connecting the pair of buffer portions, wherein one of the buffer portions abuts against the baffle; the other buffer portion abuts against one end of the cavity away from the opening; and the connecting portion is provided with the limiting groove.

[0015] In a possible implementation of the present application, the buffer portion is in the shape of a frustum, and a large end of the buffer portion is connected to the connecting portion.

[0016] In a possible implementation of the present application, along the width direction of the top glue structure, the size of the connecting portion is smaller than the size of the large end of the buffer portion.

[0017] In a possible implementation of the present application, the top glue structure further includes a limiting ring, which is sleeved on an outer side wall of the buffer portion, and the buffer portion is disposed in the cavity through the limiting ring.

[0018] In a possible implementation of the present application, the material of the vibration-damping bushing is vulcanized rubber, and the vibration-damping bushing and the inner skeleton are fixed by a vulcanization process.

[0019] In a second aspect, an embodiment of the present application provides a vehicle shock absorber, comprising:

[0020] Shock absorber body;

[0021] The above-mentioned top glue structure is arranged on the top of the shock absorber body.

[0022] The embodiment of the present application arranges the above-mentioned top glue structure on the vehicle shock absorber, which, on the one hand, enables the vehicle shock absorber to effectively absorb and reduce small vibrations and small impacts from the road surface, thereby improving the ride comfort and driving stability of the vehicle; on the other hand, it can increase the stiffness of the vehicle shock absorber under large impacts, thereby ensuring the vehicle's handling performance and safety performance under large impacts.

[0023] In a third aspect, an embodiment of the present application provides a vehicle, including:

[0024] A vehicle suspension system comprises the above-mentioned vehicle shock absorber.

[0025] The embodiment of the present application provides the above-mentioned top glue structure on the vehicle, which can, on the one hand, enable the vehicle to effectively absorb and reduce small vibrations and small impacts from the road surface, thereby improving the vehicle's ride comfort and driving stability; on the other hand, it can improve the vehicle's rigidity under large impacts, thereby ensuring the vehicle's handling performance and safety performance under large impacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 An exploded view of a top glue structure provided in an embodiment of the present application;

[0027] Figure 2 A cross-sectional schematic diagram of a top glue structure provided in an embodiment of the present application;

[0028] Figure 3 A partial structural schematic diagram of a top glue structure provided in an embodiment of the present application;

[0029] Figure 4 for Figure 1 Schematic diagram of the structure of the internal skeleton in;

[0030] Figure 5 for Figure 1 Schematic diagram of the structure of the vibration damping bushing.

[0031] Reference numerals:

[0032] 1. External frame; 101. Cavity; 1011. Opening; 2. Vibration-damping bushing; 201. Buffering part; 2011. Large end; 2012. Small end; 202. Connecting part; 2021. Limiting groove; 203. Axial through hole; 3. Internal frame; 301. Limiting protrusion; 4. Baffle; 5. Limiting ring; 6. Top glue structure. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0034] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0035] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0036] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0037] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0038] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0039] In order to solve the problem in the related art that the initial stiffness of the shock absorber top glue is relatively large, which affects the ride comfort of the entire vehicle, the embodiments of the present application provide a top glue structure, a vehicle shock absorber and a vehicle.

[0040] Combine the following Figures 1 to 5 , to describe the embodiments of the present application.

[0041] First, as Figures 1 to 5 As shown, an embodiment of the present application provides a top glue structure 6, including: an outer frame 1, a vibration-damping bushing 2, an inner frame 3 and a baffle 4.

[0042] Specifically, the outer skeleton 1 is provided with a cavity 101 and an opening 1011 connected to the cavity 101; the vibration-damping bushing 2 is provided with an axial through hole 203 and a limiting groove 2021 located on the inner side wall of the axial through hole 203, the vibration-damping bushing 2 is arranged in the cavity 101 and the axial through hole 203 is connected to the opening 1011; the outer side wall of the inner skeleton 3 is provided with a limiting protrusion 301 matching the limiting groove 2021, the inner skeleton 3 is arranged in the axial through hole 203 and the limiting protrusion 301 matches the limiting groove 2021; the baffle 4 is arranged on the opening 1011, for limiting the movement range of the vibration-damping bushing 2.

[0043] The embodiment of the present application can make the vibration-damping bushing 2 have different stiffness characteristics when subjected to different compression deformations through the mutual cooperation of the limiting protrusion 301 and the limiting groove 2021. Specifically, when the vibration-damping bushing 2 is subjected to a smaller compression deformation, the interaction between the limiting protrusion 301 and the limiting groove 2021 is smaller, and the vibration-damping bushing 2 will show a lower stiffness, so the top glue structure 6 can effectively absorb or reduce vibrations, and improve the ride comfort of the vehicle when subjected to small vibrations; and when the vibration-damping bushing 2 is subjected to a larger compression deformation, the interaction between the limiting protrusion 301 and the limiting groove 2021 is enhanced, and the vibration-damping bushing 2 will show a larger stiffness, so that the top glue structure 6 can better withstand large impacts, and improve the safety of the vehicle when subjected to large impacts.

[0044] It should be noted that by arranging the vibration-damping bushing 2 in the cavity 101 of the exoskeleton 1, on the one hand, it can prevent foreign matter from directly contacting the vibration-damping bushing 2, reduce the possibility of damage to the vibration-damping bushing 2, and extend the service life of the vibration-damping bushing 2; on the other hand, it can restrict the vibration-damping bushing 2 to a specified position of the vehicle shock absorber, ensuring that the vibration-damping bushing 2 can give full play to its own vibration-damping and energy-absorbing function, thereby improving the overall quality of the vehicle.

[0045] It is understandable that, since the exoskeleton 1 is not only used as a mounting bracket for the vibration-damping bushing 2 and the inner frame 3, but also as a connecting bracket between the vehicle body and the shock absorber body, the exoskeleton 1 itself needs to have sufficient strength, so the material of the exoskeleton 1 in this application can be but is not limited to metal, engineering plastics and composite materials. Exemplarily, the material of the exoskeleton 1 is aluminum alloy.

[0046] In addition, the embodiment of the present application can limit the maximum displacement of the vibration-damping bushing 2 in its axial direction by setting a baffle 4 on the opening 1011 of the outer frame 1, thereby ensuring that the top glue structure 6 can operate normally.

[0047] It should be noted that this embodiment does not limit the installation method of the baffle 4 on the outer frame 1, as long as the baffle 4 can be firmly installed on the opening 1011 to ensure that the baffle 4 can fully play its own limiting role. For example, in a specific embodiment, the baffle 4 is pressed tightly at the opening 1011 of the outer frame 1 by riveting with a spinning machine.

[0048] In some embodiments of the present application, Figures 1 to 3 As shown, the shape of the inner frame 3 is adapted to the shape of the axial through hole 203, and the limiting groove 2021 and the limiting protrusion 301 extend radially along the axial through hole 203. Specifically, there are multiple limiting grooves 2021, and the multiple limiting grooves 2021 are distributed at intervals along the circumferential direction of the inner side wall of the axial through hole 203; the outer side wall of the inner frame 3 is provided with multiple limiting protrusions 301 that match and correspond to the limiting grooves 2021. It can be understood that, by making the shape of the inner frame 3 compatible with the shape of the axial through hole 203, the inner frame 3 can be accurately and stably placed in the axial through hole 203 in this embodiment, avoiding performance degradation caused by improper assembly or shaking. In addition, this embodiment allows the limiting groove 2021 and the limiting protrusion 301 to extend radially along the axial through hole 203 and be distributed at intervals along the circumference of the axial through hole 203. On the one hand, it can reduce the difficulty of the assembly process and ensure the accuracy of the assembly. On the other hand, it can improve the consistency of the axial deformation of the vibration-damping bushing 2 and enhance the controllability of the vibration-damping effect.

[0049] In some embodiments of the present application, Figures 1 to 5 As shown, the limiting groove 2021 and the limiting protrusion 301 are both arranged in an annular shape. It is understandable that the limiting groove 2021 and the limiting protrusion 301 are arranged in an annular shape, which can not only increase the contact area between the two, but also allow the force to be evenly distributed.

[0050] In some embodiments of the present application, Figure 1 and Figure 5 As shown, the vibration-damping bushing 2 includes a pair of buffering parts 201 and a connecting part 202 connecting the pair of buffering parts 201, wherein one of the buffering parts 201 abuts against the baffle 4; the other buffering part 201 abuts against the end of the cavity 101 away from the opening 1011; and the connecting part 202 is provided with a limiting groove 2021. It can be understood that, by providing a pair of buffering parts 201, the vibration-damping bushing 2 can absorb and disperse the vibration energy transmitted from the baffle 4 or the cavity 101, thereby improving the vibration-damping effect of the vibration-damping bushing 2 and improving the ride comfort of the vehicle. In addition, by providing the connecting part 202 between the pair of buffering parts 201 and providing the limiting groove 2021 on the connecting part 202, it can be ensured that the buffering part 201 moves within a predetermined range to avoid excessive displacement or damage.

[0051] In some embodiments of the present application, Figure 1 and Figure 5 As shown, the shape of the buffer part 201 is a frustum, and the large end 2011 of the buffer part 201 is connected to the connecting part 202. In this embodiment, the shape of the buffer part 201 is set to be a frustum, which can make the buffer part 201 have nonlinear stiffness, that is, when the vibration-damping bushing 2 is subjected to slight vibration or small impact, it can quickly absorb and disperse these slight vibrations to prevent them from being transmitted to the interior of the vehicle and affecting the riding comfort of the vehicle; it can also make the vibration-damping bushing 2 have greater stiffness when subjected to a larger impact, thereby improving the handling and safety performance of the vehicle.

[0052] It should be noted that the small impact in the present application can be the energy that will not cause a violent dynamic response of the vehicle when the vehicle passes through tiny bumps, cracks or slight undulations on the road surface; the large impact in the present application can be the energy that will cause the vehicle to jump or vibrate significantly when the vehicle passes through larger obstacles or sudden changes in the road surface during driving, such as large potholes, speed bumps, curb impacts, or severe bumps on unpaved roads.

[0053] It can be understood that, since the shape of the buffer portion 201 is a frustum, the buffer portion 201 also has a small end 2012 , and the small end 2012 of the buffer portion 201 is arranged opposite to the large end 2011 of the buffer portion 201 .

[0054] In some embodiments of the present application, Figures 1 to 5 As shown, along the width direction of the top glue structure 6, the size of the connecting portion 202 is smaller than the size of the large end 2011 of the buffer portion 201. This arrangement allows a gap to be left between the connecting portion 202 and the inner wall of the cavity 101, thereby avoiding interference between the limiting groove 2021 and the inner wall of the cavity 101 during the compression process of the vibration damping bushing 2, thereby improving the reliability of the vibration damping bushing 2. It should be noted that Figure 2 The direction shown in FIG. 6 is the width direction of the top glue structure 6 .

[0055] For the convenience of expression, Figure 3 The positions of the outer wall of the limiting ring 5 and the inner wall of the cavity 101 are described with reference to the direction shown in FIG.

[0056] In some embodiments of the present application, Figures 1 to 3As shown, the top glue structure 6 also includes a limit ring 5, which is sleeved on the outer wall of the buffer part 201, and the buffer part 201 is arranged in the cavity 101 through the limit ring 5. It can be understood that since the vibration damping bushing 2 has a pair of buffer parts 201, before placing the vibration damping bushing 2 in the cavity 101, it is necessary to sleeve a limit ring 5 on the outer wall of the pair of buffer parts 201 respectively, and then place the vibration damping bushing 2 equipped with the limit ring 5 in the cavity 101. In addition, in order to ensure that the limit ring 5 can effectively limit the movement range of the vibration damping bushing 2, so that the vibration damping bushing 2 can maintain a good working state under various working conditions, in the above-mentioned assembly process, it is necessary not only to ensure the fitting effect of the outer wall of the limit ring 5 and the inner wall of the cavity 101, but also to ensure that the bottom surface of the baffle 4 can abut against the limit ring 5 near the opening 1011, so as to ensure that the limit ring 5 and the vibration damping bushing 2 always move within a preset range.

[0057] In some embodiments of the present application, the material of the vibration-damping bushing 2 is vulcanized rubber, and the vibration-damping bushing 2 is fixed to the inner frame 3 through a vulcanization process. By setting the structure of the vibration-damping bushing 2 to vulcanized rubber, the elasticity of the vibration-damping bushing 2 can be improved, so that the vibration-damping bushing 2 can effectively absorb and disperse the impact energy when it is impacted or vibrated, reduce the vibration and noise transmitted to the interior of the vehicle, and improve the ride comfort and use safety of the vehicle. In addition, fixing the vibration-damping bushing 2 to the inner frame 3 through a vulcanization process can form a tight bond between the vibration-damping bushing 2 and the inner frame 3, ensuring that the vibration-damping bushing 2 will not fall off during long-term use, thereby improving the vibration-damping performance of the vibration-damping bushing 2.

[0058] In the second aspect, the embodiment of the present application provides a vehicle shock absorber, comprising: a shock absorber body and the above-mentioned top glue structure 6. Specifically, the above-mentioned top glue structure 6 is arranged on the top of the shock absorber body. The embodiment of the present application sets the above-mentioned top glue structure 6 on the vehicle shock absorber, which, on the one hand, enables the vehicle shock absorber to effectively absorb and reduce small vibrations and small impacts from the road surface, thereby improving the ride comfort and driving stability of the vehicle; on the other hand, it can improve the stiffness of the vehicle shock absorber under large impacts, thereby ensuring the handling performance and safety performance of the vehicle under large impacts.

[0059] In a third aspect, an embodiment of the present application provides a vehicle, including: a vehicle suspension system. Specifically, the vehicle suspension system includes the above-mentioned vehicle shock absorber. The embodiment of the present application, by setting the above-mentioned top rubber structure 6 on the vehicle, can, on the one hand, enable the vehicle to effectively absorb and reduce small vibrations and small impacts from the road surface, thereby improving the ride comfort and driving stability of the vehicle; on the other hand, it can improve the rigidity of the vehicle under large impacts, thereby ensuring the handling performance and safety performance of the vehicle under large impacts.

[0060] It should be noted that the vehicle in this application may refer to a large car, a small car, a special-purpose car, etc. For example, according to the car model, the car in this application may be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV) or other models. Generally, a vehicle is provided with wheels, a power source, and a transmission system arranged between the wheels and the power source. The transmission system can transmit the power provided by the power source to the wheels, so that the wheels rotate, thereby driving the vehicle to travel.

[0061] It should be noted that in the embodiments of the present application, the type of the power source of the vehicle is not limited. For example, for a fuel vehicle, the power source may refer to a fuel engine such as a gasoline engine or a diesel engine; for an electric vehicle, the power source may refer to an electric motor; for a hybrid vehicle, the power source may refer to an engine or an electric motor; for a vehicle powered by other means, the power source may refer to a device that generates power.

[0062] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A top glue structure, characterized in that: include: An exoskeleton (1) is provided with a cavity (101) and an opening (1011) communicating with the cavity (101); A vibration-damping bushing (2) provided with an axial through hole (203) and a limiting groove (2021) located on the inner side wall of the axial through hole (203); the vibration-damping bushing (2) is arranged in the cavity (101) and the axial through hole (203) is in communication with the opening (1011); An inner frame (3), an outer side wall of which is provided with a limiting protrusion (301) matching with the limiting groove (2021); the inner frame (3) is arranged in the axial through hole (203) and the limiting protrusion (301) matches with the limiting groove (2021); A baffle (4) is arranged on the opening (1011) and is used to limit the movement range of the vibration-damping bushing (2).

2. The top glue structure according to claim 1, characterized in that: The shape of the inner skeleton (3) is compatible with the shape of the axial through hole (203), and the limiting groove (2021) and the limiting protrusion (301) extend radially along the axial through hole (203).

3. The top glue structure according to claim 2, characterized in that: The limiting groove (2021) and the limiting protrusion (301) are both arranged in a ring shape.

4. The top glue structure according to any one of claims 1 to 3, characterized in that: The vibration-damping bushing (2) comprises a pair of buffer parts (201) and a connecting part (202) connecting the pair of buffer parts (201), wherein one of the buffer parts (201) abuts against the baffle (4); the other buffer part (201) abuts against an end of the cavity (101) away from the opening (1011); and the connecting part (202) is provided with the limiting groove (2021).

5. The top glue structure according to claim 4, characterized in that: The buffer portion (201) is in the shape of a frustum, and the large end (2011) of the buffer portion (201) is connected to the connecting portion (202).

6. The top glue structure according to claim 4, characterized in that: Along the width direction of the top glue structure (6), the size of the connecting portion (202) is smaller than the size of the large end (2011) of the buffer portion (201).

7. The top glue structure according to claim 4, characterized in that: It also comprises a limiting ring (5), wherein the limiting ring (5) is sleeved on the outer wall of the buffer portion (201), and the buffer portion (201) is arranged in the cavity (101) through the limiting ring (5).

8. The top glue structure according to any one of claims 1 to 3, characterized in that: The material of the vibration-damping bushing (2) is vulcanized rubber, and the vibration-damping bushing (2) and the inner frame (3) are fixed by a vulcanization process.

9. A vehicle shock absorber, characterized in that: include: Shock absorber body; The top glue structure (6) according to any one of claims 1 to 8 is arranged on the top of the shock absorber body.

10. A vehicle, characterized in that: include: A vehicle suspension system comprises the vehicle shock absorber according to claim 9.

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