Rubber main spring, hydraulic mount and vehicle

Abstract

The utility model provides a rubber main spring, a hydraulic mount and a vehicle, the rubber main spring comprises a mounting part and a supporting part, the mounting part is used for being connected with an inner core, and the supporting part is used for being connected with an outer pipe; a mounting cavity formed in the first direction is formed in the rubber main spring, penetrates through the mounting part and the supporting part and is used for mounting the inner core; at least one side of the mounting part extends in the direction away from the mounting cavity to form the first protruding part, so that the size of the mounting part is increased, when the rubber main spring bears the same load, the overall compression deformation amount of the rubber main spring can be effectively reduced, and therefore the static rigidity of the rubber main spring is reduced, the vibration isolation capacity of the hydraulic mount is improved, and the service life of the hydraulic mount is prolonged. And the NVH performance of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powertrain suspension, in particular to a rubber main spring, a hydraulic suspension and a vehicle. Background Art

[0002] The powertrain mount is a component used to connect the powertrain and the vehicle frame. Its main function is to support the powertrain, limit the displacement of the powertrain under various working conditions, and attenuate and isolate the vibration and noise caused by the powertrain. Therefore, the performance of the suspension system will directly affect the ride comfort of the vehicle. Hydraulic mounts are increasingly used in vehicles because of their advantages such as large damping, large vibration isolation frequency range, and excellent vibration isolation efficiency.

[0003] Hydraulic mounts usually include barrel-shaped hydraulic mounts and trapezoidal hydraulic mounts. Traditional barrel-shaped hydraulic mounts use a cylindrical shell and a circular rubber main spring structure. When the torque of the powertrain is large, this type of mount is limited by its own structure. After the rubber main spring enters the nonlinear section, the static stiffness increases sharply, resulting in a decrease in the vibration isolation ability of the hydraulic mount, affecting the NVH performance of the entire vehicle. Utility Model Content

[0004] In view of this, the utility model provides a rubber main spring, a hydraulic mount and a vehicle, so as to at least solve the problem that the static stiffness of the current rubber main spring is high when the torque of the powertrain is large, resulting in a decrease in the vibration isolation ability of the hydraulic mount.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The utility model provides a rubber main spring, comprising a mounting portion and a supporting portion, wherein the mounting portion is used to be connected to an inner core, and the supporting portion is used to be connected to an outer tube; a mounting cavity arranged along a first direction is provided in the rubber main spring, the mounting cavity passes through the mounting portion and the supporting portion, and the mounting cavity is used to install the inner core; at least one side of the mounting portion extends along a direction away from the mounting cavity to form a first protrusion.

[0007] Optionally, the first protrusion is extended along a second direction, wherein the second direction is perpendicular to the first direction.

[0008] Optionally, a side of the first protrusion facing away from the installation cavity forms an abutment surface, and the abutment surface is a plane.

[0009] Optionally, the mounting portion has a radial center line, and the radial center line intersects with the axis of the mounting cavity; the first protrusion is a symmetrical structure with the radial center line as the axis.

[0010] Optionally, there are two first protrusions, which are arranged on opposite sides of the mounting portion along the second direction; or, there are multiple first protrusions, which are arranged at intervals along the circumference of the mounting portion.

[0011] Optionally, along the second direction, the sum of the size of the mounting portion on the side of the first protrusion and the size of the first protrusion is 15mm to 20mm; a second protrusion is provided on the surface of the mounting portion away from the supporting portion, and the second protrusion is extended along the first direction.

[0012] The utility model also provides a hydraulic suspension, comprising an inner core, an outer tube and the rubber main spring described in any one of the above items; the inner core is installed in the installation cavity and is vulcanized to the installation part, and the outer tube is vulcanized to the support part.

[0013] Optionally, the inner core includes a connecting surface, the connecting surface is arranged on a side close to the first protrusion, and the connecting surface is a plane.

[0014] Optionally, it further comprises a shell; the shell has a containing cavity, and the inner core, the outer tube and the rubber main spring are all arranged in the containing cavity;

[0015] At least one side of the shell extends in a direction away from the installation cavity to form a limiting portion, and the limiting portion is vulcanized and connected to a side of the installation portion provided with the first protrusion.

[0016] The utility model also provides a vehicle, comprising any one of the hydraulic suspensions described above.

[0017] Compared with the prior art, the rubber main spring, hydraulic suspension and vehicle described in the utility model have the following advantages:

[0018] The rubber main spring of the utility model extends on at least one side of the mounting portion in a direction away from the mounting cavity to form a first protrusion, so that the size of the mounting portion is increased. When the rubber main spring is subjected to the same load, the overall compression deformation of the rubber main spring can be effectively reduced, thereby reducing the static stiffness of the rubber main spring, which helps to improve the vibration isolation capability of the hydraulic suspension and improve the NVH performance of the entire vehicle.

[0019] The hydraulic mount and vehicle of the present invention have the same or similar advantages as the prior art and the aforementioned hydraulic mount, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of a rubber main spring in an embodiment of the utility model;

[0022] Figure 2 It is a side view of a rubber main spring in an embodiment of the utility model;

[0023] Figure 3 It is a top view of a rubber main spring in an embodiment of the utility model;

[0024] Figure 4 This is a structural exploded diagram of a hydraulic mount in an embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of an inner core in an embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of a hydraulic mount in an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1- rubber main spring, 10- mounting cavity, 11- mounting portion, 12- supporting portion, 13- first protrusion, 130- abutment surface, 14- second protrusion, 2- inner core, 21- connecting surface, 3- outer tube, 4- flow channel cover plate, 5- decoupling membrane, 6- flow channel, 7- leather cup, 8- leather cup frame, 9- shell, 91- upper shell, 92- lower shell, 93- limiting portion. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the present utility model can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more.

[0031] It should be understood that the reference to "some embodiments" throughout the specification means that specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the utility model. Therefore, the "in some embodiments" appearing in various places throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0032] The following describes in detail a rubber main spring, a hydraulic suspension and a vehicle provided by the utility model by listing specific embodiments.

[0033] Figures 1 to 3 A schematic diagram of a rubber main spring 1 in an embodiment of the utility model is shown, referring to Figures 1 to 3 A rubber main spring 1 provided by an embodiment of the utility model includes a mounting portion 11 and a supporting portion 12, wherein the mounting portion 11 is used to connect with the inner core 2, and the supporting portion 12 is used to connect with the outer tube 3; a mounting cavity 10 arranged along a first direction is provided in the rubber main spring 1, and the mounting cavity 10 passes through the mounting portion 11 and the supporting portion 12, and the mounting cavity 10 is used to install the inner core 2; at least one side of the mounting portion 11 extends along a direction away from the mounting cavity 10 to form a first protrusion 13.

[0034] In this embodiment, the rubber main spring 1 is suitable for use in a hydraulic mount, which is connected between the vehicle engine and the vehicle body. The hydraulic mount includes a housing 9 and an inner core 2, an outer tube 3, a flow channel assembly, a leather cup assembly, etc., which are arranged in the housing 9. An upper liquid chamber is formed between the rubber main spring 1 and the flow channel assembly, and a lower liquid chamber is formed between the flow channel assembly and the leather cup assembly for storing liquid. When the engine vibrates, the liquid flows between the upper liquid chamber and the lower liquid chamber, and produces a damping effect through the inertial channel, thereby attenuating the impact of the engine vibration on the vehicle body and improving the NVH performance of the vehicle. Among them, the NVH of the vehicle is a general term for various indicators such as vehicle noise (Noise), vibration (Vibration) and sound vibration roughness (Harshness), which is an important criterion for measuring vehicle quality. The quality of NVH performance directly affects the riding comfort of the passengers and the driving experience of the driver.

[0035] The rubber main spring 1 is made of rubber, which has the property of reversible deformation. Under a large external force, the rubber can produce a large deformation, but after the external force is removed, the rubber can return to its original shape. In some embodiments, the rubber main spring 1 can be made of nitrile rubber, which has good oil resistance and heat resistance, and has large damping. It can be well combined with metal parts such as the inner core 2 and the outer tube 3 in the hydraulic mount, effectively meeting the use requirements of the rubber main spring 1. The rubber main spring 1 of this embodiment is arranged in the hydraulic mount, and the torque transmitted from the engine acts on the rubber main spring 1 through the inner core 2, causing the rubber main spring 1 to be compressed and deformed. The deformation of the rubber main spring 1 can absorb part of the torque, thereby achieving a vibration reduction effect.

[0036] The rubber main spring 1 has a first direction and a second direction. The first direction is as follows: Figure 1 and Figure 2 The Z direction is shown in the figure, and the second direction is shown in the figure. Figure 1 and Figure 2 As shown in the X direction in the figure, the first direction Z and the second direction X are perpendicular to each other. It should be noted that the "perpendicular" in the embodiment of the utility model includes not only the absolutely perpendicular situation, but also the generally recognized substantially perpendicular situation, such as the state where the angle between the first direction Z and the second direction X is 89° to 91°, which is regarded as the state where the first direction Z and the second direction X are perpendicular to each other. The rubber main spring 1 includes a mounting portion 11 and a supporting portion 12. The mounting portion 11 is arranged above the supporting portion 12 along the first direction Z. The mounting portion 11 is used to connect with the inner core 2 in the hydraulic mount, and the supporting portion 12 is used to connect with the outer tube 3 in the hydraulic mount, so as to realize the installation and fixation of the rubber main spring 1 in the hydraulic mount.

[0037] like Figure 1 and Figure 3 As shown, the rubber main spring 1 is provided with an installation cavity 10 arranged along the first direction Z, the installation cavity 10 passes through the installation portion 11 and the support portion 12, the inner core 2 is installed in the installation cavity 10 and connected to the rubber main spring 1, the installation cavity 10 can be a columnar structure, a conical structure, etc. The specific structural shape is set according to the structural shape of the inner core 2, and this embodiment is not limited to this. At least one side of the mounting portion 11 extends in a direction away from the mounting cavity 10 to form a first protrusion 13. The angle between the extension direction of the first protrusion 13 and the second direction X can be within a range of 0° to 60°. For example, the angle between the extension direction of the first protrusion 13 and the second direction X is 0°, that is, the extension direction of the first protrusion 13 is parallel to the second direction X. Alternatively, the angle between the extension direction of the first protrusion 13 and the second direction X is 30°. Alternatively, the angle between the extension direction of the first protrusion 13 and the second direction X is 60°. Within the above-mentioned angle range, the static stiffness of the rubber main spring 1 can be reduced, thereby improving the vibration isolation capability of the hydraulic mount and improving the NVH performance of the entire vehicle.

[0038] Specifically, the above-mentioned static stiffness refers to the ability of the rubber main spring 1 to resist deformation when subjected to a static load. It is generally measured by the deformation of the rubber main spring 1 under the static load, and does not change with frequency. Since the mounting portion 11 extends in a direction away from the mounting cavity 10 to form the first protrusion 13, the size of the mounting portion 11 in the second direction X is increased. When the rubber main spring 1 is subjected to the same load, the increase in the size of the rubber main spring 1 reduces the overall compression deformation of the rubber main spring 1, thereby reducing the static stiffness of the rubber main spring 1, which helps to improve the vibration isolation capability of the hydraulic suspension and improve the NVH performance of the vehicle. In some embodiments, along the second direction X, the sum of the size of the mounting portion 11 on the side with the first protrusion 13 and the size of the first protrusion 13 can be 15 mm to 20 mm. The sum of the above-mentioned sizes is as follows: Figure 3 As shown in L1 in the figure, it should be noted that the size of the mounting portion 11 on the side with the first protrusion 13 refers to the maximum size of the mounting portion 11 on the side with the first protrusion 13 along the second direction X, and the size of the first protrusion 13 refers to the maximum size of the first protrusion 13 along the second direction X. Compared with the prior art, the size of the mounting portion 11 on this side along the second direction X increases by about 3mm to 5mm. The mounting portion 11 of the rubber main spring 1 within this size range can enable the rubber main spring 1 to meet the vibration reduction requirements of most vehicles.

[0039] The rubber main spring 1 will first deform in a linear section during the deformation process, and will then deform in a nonlinear section when the linear section deformation reaches a certain degree. Taking the scenario where the rubber main spring 1 is suitable for vehicle acceleration conditions as an example, after testing, the traditional rubber main spring 1 will quickly enter the nonlinear section and deform in a nonlinear section when the linear section deformation is about 3mm to 4mm. During the deformation process of the nonlinear section, the compression deformation of the rubber main spring 1 increases sharply, causing the static stiffness of the rubber main spring 1 to increase sharply, thereby causing the vibration isolation capability of the hydraulic mount to decrease. When the rubber main spring 1 of the embodiment of the utility model is used, after testing, the rubber main spring 1 of the embodiment of the utility model will enter the nonlinear section and deform in a nonlinear section when the linear section deformation is about 6mm to 8mm, thereby reducing the compression deformation of the rubber main spring 1 to a certain extent, reducing the static stiffness of the rubber main spring 1, and thus improving the vibration isolation capability of the hydraulic mount.

[0040] In summary, the rubber main spring 1 of the embodiment of the utility model extends on at least one side of the mounting portion 11 in a direction away from the mounting cavity 10 to form a first protrusion 13, so that the size of the mounting portion 11 in the second direction X is increased. When the rubber main spring 1 is subjected to the same load, the overall compression deformation of the rubber main spring 1 can be effectively reduced, thereby reducing the static stiffness of the rubber main spring 1, which helps to improve the vibration isolation capability of the hydraulic suspension and improve the NVH performance of the entire vehicle.

[0041] Optionally, refer to Figure 2 The first protrusion 13 is extended along a second direction X, wherein the second direction X is perpendicular to the first direction Z.

[0042] In the present embodiment, the second direction X is in the same direction as the length direction of the vehicle body, that is, the second direction X is the direction from the front to the rear of the vehicle. The torque transmitted by the engine to the hydraulic mount in this direction is relatively large, and the mounting portion 11 of the rubber main spring 1 undergoes a relatively large deformation in this direction. Therefore, the first protrusion 13 is extended along the second direction X, mainly to increase the size of the mounting portion 11 in the second direction X, thereby helping to reduce the compressive deformation of the rubber main spring 1 in the second direction X and reduce the static stiffness of the rubber main spring 1.

[0043] Optionally, refer to Figure 1 The first protrusion 13 forms a contact surface 130 on a side facing away from the installation cavity 10, and the contact surface 130 is a plane.

[0044] In this embodiment, the torque transmitted from the engine acts on the rubber main spring 1 through the inner core 2, causing the rubber main spring 1 to be compressed and deformed. During the process of compression and deformation, the rubber main spring 1 will abut against the housing 9 of the hydraulic mount, and the abutment surface 130 is used to abut against the housing 9 of the hydraulic mount when the rubber main spring 1 is compressed and deformed. The abutment surface 130 is a plane to ensure the contact area between the rubber main spring 1 and the housing 9 and improve the stability of the rubber main spring 1. At the same time, the abutment surface 130 is a plane, which also helps to disperse the force on the rubber main spring 1, thereby helping to reduce the compression deformation of the rubber main spring 1 and reduce the static stiffness of the rubber main spring 1. In some embodiments, the projection of the first protrusion 13 along the first direction Z can be a trapezoid, a rectangle, a square, etc., to facilitate the processing design of the first protrusion 13.

[0045] Optionally, refer to Figure 3 The mounting portion 11 has a radial center line, and the radial center line intersects with the axis of the mounting cavity 10; the first protrusion 13 is symmetrical with the radial center line as the axis.

[0046] In this embodiment, the axis of the installation cavity 10 is arranged along the first direction Z and passes through the center of the installation cavity 10. The radial center line intersects with the axis of the installation cavity 10. Figure 3 As shown in L, the first protrusion 13 is symmetrical with the radial center line as the axis, so that when the first protrusion 13 is compressed and deformed by torque, the force can be dispersed more evenly to avoid stress concentration causing excessive local compression deformation, thereby helping to improve the deformation capacity of the rubber main spring 1 and reduce the static stiffness of the rubber main spring 1.

[0047] Optionally, there are two first protrusions 13 , which are disposed on opposite sides of the mounting portion 11 along the second direction X; or, there are multiple first protrusions 13 , which are spaced apart along the circumference of the mounting portion 11 .

[0048] In some embodiments, the powertrain of some new energy vehicles mostly uses components such as drive motors, generators, range extenders, and controllers. From the perspective of energy saving, the drive motor is generally connected to a braking energy recovery device. When the braking energy recovery device recovers energy, the drive motor will output torque, and the maximum torque output can reach about 75% of the vehicle acceleration condition. In order to ensure that the hydraulic suspension also has good vibration isolation capability under this condition, first protrusions 13 are provided on both sides of the mounting portion 11 along the second direction X, so that when the rubber main spring 1 is compressed in another direction, it also has good vibration isolation capability. In other embodiments, the mounting portion 11 extends along a side away from the mounting cavity 10 to form a plurality of first protrusions 13. The plurality of first protrusions 13 are spaced apart along the circumference of the mounting portion 11 to increase the size of the mounting portion 11 along multiple directions. The spacing distance between two adjacent first protrusions 13 may be the same so that the plurality of first protrusions 13 are evenly spaced apart along the circumference of the mounting portion 11, which helps to disperse the force on the mounting portion 11 and reduce the compressive deformation of the mounting portion 11 in multiple directions, thereby further helping to reduce the static stiffness of the rubber main spring 1 and enhance the vibration isolation capability of the hydraulic suspension.

[0049] Optionally, refer to Figure 1 and Figure 2 A second protruding portion 14 is provided on a surface of the mounting portion 11 facing away from the supporting portion 12 , and the second protruding portion 14 is extended along the first direction Z.

[0050] In this embodiment, the surface of the mounting portion 11 on the side away from the support portion 12 extends along the first direction Z to form a second protrusion 14, and the second protrusion 14 extends along the side away from the support portion 12. The arrangement of the second protrusion 14 makes the surface of the mounting portion 11 on the side away from the support portion 12 present an uneven structure, which helps to improve the structural rigidity of the mounting portion 11 and improve the stability and reliability of the mounting portion 11. In some embodiments, the surface of the mounting portion 11 on the side away from the support portion 12 can also extend along the first direction Z to form a recessed portion, and the recessed portion extends along the side facing the support portion 12. The recessed portion and the second protrusion 14 are arranged alternately to avoid excessive stress on the mounting portion 11, resulting in a decrease in deformation capacity, which affects the vibration isolation effect of the hydraulic mount.

[0051] Reference Figure 4 and Figure 6The embodiment of the utility model also provides a hydraulic suspension, including an inner core 2, an outer tube 3 and the rubber main spring 1 described in any of the aforementioned embodiments; the inner core 2 is installed in the installation cavity 10 and is vulcanized to the installation part 11, and the outer tube 3 is vulcanized to the support part 12.

[0052] In this embodiment, if Figure 4 As shown, the hydraulic suspension includes, in addition to the inner core 2, the outer tube 3 and the rubber main spring 1, a shell 9, a flow channel assembly, a leather cup assembly, etc. The shell 9 has a receiving cavity, and the inner core 2, the outer tube 3, the rubber main spring 1, the flow channel assembly and the leather cup assembly are all arranged in the receiving cavity. The inner core 2 is installed in the mounting cavity 10 of the mounting portion 11 and is vulcanized and connected to the mounting portion 11. Hydraulic oil can be dripped into the mounting cavity 10 through the inner core 2. The upper part of the outer tube 3 is vulcanized and connected to the support portion 12. Vulcanization bonding refers to bonding with a single-coat adhesive or a double-coat adhesive. The adhesive is infiltrated with gold. The adhesive penetrates into the gaps and concave holes on the metal surface after adsorbing the metal (i.e., the inner core 2 and the outer tube 3), and removes the air adsorbed on the interface, so that the adhesive is in full contact with the metal surface. Then, under the action of adsorption or chemical reaction, the adhesive produces sufficient bonding strength to bond with the metal surface. The adhesive and the mounting portion 11 and the supporting portion 12 of the rubber main spring 1 are bonded through the mutual diffusion, penetration and co-crosslinking of molecules or chain segments. At the same time, a series of chemical reactions can also occur inside the adhesive and the rubber, which ultimately forms a strong connection between the rubber and the metal.

[0053] The flow channel assembly and the leather cup assembly are both arranged at the bottom of the accommodating cavity, the flow channel assembly includes a flow channel cover plate 4, a decoupling membrane 5, a flow channel 6, etc., the leather cup assembly includes a leather cup 7 and a leather cup frame 8 for making the leather cup 7, the flow channel assembly is placed at the lower part of the outer tube 3, and the leather cup assembly is installed at the bottom of the outer tube 3. The shell 9 includes an upper shell 91 and a lower shell 92, the outer tube 3 and the lower shell 92 are interference fitted together, and then the upper shell 91 and the lower shell 92 are assembled, connected or welded to form a complete hydraulic suspension.

[0054] The flow channel 6 of the hydraulic mount is filled with liquid, generally ethylene glycol, and the liquid will flow back and forth between the inertial channels formed by the flow channel components, forming a certain damping effect, achieving a low-frequency large damping effect, and weakening the amplitude of the vibration. When there is a low-frequency and large-amplitude vibration, the decoupling membrane 5 does not work because the frequency of the hydraulic oil movement in the installation cavity 10 is low. As the excitation frequency increases, the flow of liquid in the inertial channel is hindered, and the decoupling membrane 5 begins to work, shaking in the inertial channel, stirring the liquid, thereby improving the vibration isolation capability of the hydraulic mount to a certain extent.

[0055] Optionally, refer to Figure 5 The inner core 2 includes a connecting surface 21, and the connecting surface 21 is arranged on a side close to the first protruding portion 13, and the connecting surface 21 is a plane.

[0056] In this embodiment, the connection surface 21 is a plane, which can play a limiting role when the inner core 2 is installed, making it easier to connect the inner core 2 with the mounting portion 11, and also helping to ensure that the connection surface 21 is in full contact with the mounting portion 11, thereby improving the connection reliability between the inner core 2 and the mounting portion 11. At the same time, the connection surface 21 is a plane, which can reduce the size of the inner core 2 in the second direction X to a certain extent, thereby reserving more space for the mounting portion 11, which is helpful for optimizing and improving the mounting portion 11. In some embodiments, the two adjacent sides of the inner core 2 along the second direction X can be set as planes to reasonably control the size of the inner core 2 in the second direction X, increase the size of the mounting portion 11, thereby helping to reduce the overall compression deformation of the rubber main spring 1, reduce the static stiffness of the rubber main spring 1, and help improve the vibration isolation capability of the hydraulic mount.

[0057] Optionally, refer to Figure 6 At least one side of the housing 9 extends in a direction away from the mounting cavity 10 to form a limiting portion 93 , and the limiting portion 93 is vulcanizedly connected to a side of the mounting portion 11 provided with the first protrusion 13 .

[0058] In this embodiment, the limiting portion 93 can be designed to follow the first protrusion 13. If the first protrusion 13 is a square protrusion, the limiting portion 93 can also be processed into a square structure. If the first protrusion 13 is a trapezoidal protrusion, the limiting portion 93 can also be processed into a trapezoidal structure. The first protrusion 13 abuts against the inner wall of the limiting portion 93, which can play a certain limiting role on the mounting portion 11 and improve the stability of the rubber main spring 1 in the housing 9, wherein the inner wall of the limiting portion 93 refers to the surface of the limiting portion 93 close to the rubber main spring 1. In addition, the setting of the limiting portion 93 can increase the space of the accommodating cavity in the housing 9, provide a larger installation space for the mounting portion 11, and thus be more conducive to the optimization and improvement of the mounting portion 11 and improve the vibration isolation capability of the hydraulic mount.

[0059] An embodiment of the utility model further provides a vehicle, comprising the hydraulic suspension described in any one of the aforementioned embodiments.

[0060] In this embodiment, the vehicle includes but is not limited to a fuel vehicle, a pure electric vehicle, a hybrid vehicle, etc. The vehicle includes the hydraulic suspension of any of the aforementioned embodiments. The hydraulic suspension has good vibration isolation capability, which helps to improve the NVH performance of the vehicle, improve the riding comfort of the passengers and the driving experience of the driver.

[0061] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber main spring (1), characterized in that: It comprises a mounting portion (11) and a supporting portion (12), wherein the mounting portion (11) is used to be connected to the inner core (2), and the supporting portion (12) is used to be connected to the outer tube (3); The rubber main spring (1) is provided with a mounting cavity (10) arranged along a first direction, the mounting cavity (10) passes through the mounting portion (11) and the supporting portion (12), and the mounting cavity (10) is used to mount the inner core (2); At least one side of the mounting portion (11) extends in a direction away from the mounting cavity (10) to form a first protruding portion (13).

2. The rubber main spring (1) according to claim 1, characterized in that: The first protrusion (13) is extended along a second direction, wherein the second direction is perpendicular to the first direction.

3. The rubber main spring (1) according to claim 1, characterized in that: A side of the first protruding portion (13) facing away from the mounting cavity (10) forms an abutment surface (130), and the abutment surface (130) is a plane.

4. The rubber main spring (1) according to claim 1, characterized in that: The mounting portion (11) has a radial centerline, and the radial centerline intersects with the axis of the mounting cavity (10); The first protrusion (13) has a symmetrical structure with the radial center line as the axis.

5. The rubber main spring (1) according to claim 2, characterized in that: There are two first protruding portions (13), and the two first protruding portions (13) are arranged on two opposite sides of the mounting portion (11) along the second direction; Alternatively, there are a plurality of first protrusions (13), and the plurality of first protrusions (13) are arranged at intervals along the circumference of the mounting portion (11).

6. The rubber main spring (1) according to claim 2, characterized in that: Along the second direction, the sum of the size of the mounting portion (11) on the side where the first protruding portion (13) is provided and the size of the first protruding portion (13) is 15 mm to 20 mm; A second protruding portion (14) is provided on the surface of the mounting portion (11) on a side away from the supporting portion (12), and the second protruding portion (14) is extended along the first direction.

7. A hydraulic mount, characterized in that: It comprises an inner core (2), an outer tube (3) and a rubber main spring (1) as claimed in any one of claims 1 to 6; The inner core (2) is installed in the installation cavity (10) and is vulcanized and connected to the installation portion (11); the outer tube (3) is vulcanized and connected to the support portion (12).

8. The hydraulic mount according to claim 7, characterized in that: The inner core (2) comprises a connecting surface (21), wherein the connecting surface (21) is arranged on a side close to the first protruding portion (13), and the connecting surface (21) is a plane.

9. The hydraulic mount according to claim 7, characterized in that: Also includes a housing (9); The housing (9) has a containing cavity, and the inner core (2), the outer tube (3) and the rubber main spring (1) are all arranged in the containing cavity; At least one side of the shell (9) extends in a direction away from the installation cavity (10) to form a limiting portion (93), and the limiting portion (93) is vulcanizedly connected to one side of the installation portion (11) provided with the first protrusion (13).

10. A vehicle, characterized in that: Comprising the hydraulic mount according to any one of claims 7 to 9.

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