A rubber suspension and a vehicle

Abstract

The application provides a rubber suspension and a vehicle, and belongs to the technical field of automobile suspensions. The rubber suspension comprises an outer frame, a main spring and two limiting rubber bodies. The main spring is arranged in the outer frame. The two limiting rubber bodies are arranged on opposite inner walls of the outer frame along the Z direction and are located on two sides of the main spring respectively. The main spring comprises a plurality of hemispheres which are sequentially connected along the X direction and are arranged in a back-to-back manner. A first damping chamber is arranged in each hemisphere. A rotating body is arranged on the side of each limiting rubber body close to the main spring. The rotating body rotates to buffer the impact of the main spring colliding with the limiting rubber body. The rubber suspension can effectively improve the vibration isolation capacity of the main spring in the X direction and the Y direction, can buffer the impact of the main spring colliding with the limiting rubber body in the Z direction, and can reduce abnormal noise.

Description

Technical Field

[0001] This invention belongs to the field of automotive mounting technology, and more specifically, relates to a rubber mounting system and a vehicle. Background Technology

[0002] As competition intensifies in the automotive industry, major OEMs are enhancing product competitiveness by controlling development costs. While ensuring the overall vehicle meets design and usage requirements, cost control has become a crucial consideration.

[0003] To reduce development costs, automotive engine mounts often use lower-cost rubber mounts. Compared to hydraulic mounts, rubber mounts are simpler in structure, lower in cost, and suitable for low-end models.

[0004] However, for existing rubber suspensions, the main spring has poor vibration isolation capabilities in the X and Y directions, and the Z-direction limiting rubber body collision is prone to generating abnormal noise. Summary of the Invention

[0005] The purpose of this invention is to provide a rubber suspension that solves the problems of poor vibration isolation capabilities of the main spring in the X and Y directions, and the collision of the limiting rubber in the Z direction, which easily generates abnormal noise.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a rubber suspension includes an outer frame, a main spring, and two limiting rubber bodies. The main spring is disposed within the outer frame, and the two limiting rubber bodies are disposed along the Z-direction on opposite inner walls of the outer frame and respectively located on both sides of the main spring. The main spring includes a plurality of hemispheres connected sequentially along the X-direction and arranged facing away from each other. A first damping chamber is formed in the hemisphere. A rotating body is provided on the side of the limiting rubber body near the main spring. The rotating body buffers the impact of the main spring colliding with the limiting rubber body by rotating itself.

[0007] In one possible implementation, the first damping chamber is a hemispherical chamber formed on the outer end face of the hemisphere.

[0008] In one possible implementation, the outer frame has a first through hole on each of its two sidewalls along the X direction, which connects to the corresponding hemispherical chamber.

[0009] In one possible implementation, an intermediate body is integrally formed between the two hemispheres, and the intermediate body has mounting holes along the Y direction for mounting the support arm.

[0010] In one possible implementation, the rotating body includes a rotating bracket connected to the limiting colloid on the side near the main spring. The rotating bracket on the side near the main spring has a roller rotatably mounted thereon. The outer arc surface of the roller rotates by bearing the impact of the main spring.

[0011] In one possible implementation, the rotating bracket has two lugs spaced apart on the side near the main spring, and the roller is rotatably disposed between the two lugs via a bearing, with the outer arc surface of the roller protruding from the end of the lug to contact the main spring.

[0012] In one possible implementation, a second vibration damping chamber is provided on the side of the limiting colloid near the outer frame.

[0013] In one possible implementation, the outer frame has a second through hole on each of its two side walls along the Z direction, which connects to the second vibration damping chamber.

[0014] In one possible implementation, the outer frame includes a base and a U-shaped skeleton connected to the end face of the base along the Z direction, the main spring is disposed in the U-shaped skeleton along the X direction, and the two limiting colloids are respectively disposed along the Z direction on the end faces of the U-shaped skeleton and the base.

[0015] The beneficial effects of the rubber suspension provided by this invention are as follows: Compared with the prior art, a main spring and two limiting rubber bodies are installed inside the outer frame. Multiple hemispheres of the main spring are connected sequentially along the X-direction, and each hemisphere has a first damping chamber. The formation of two first damping chambers in the X-direction of the main spring creates a non-solid structure, thereby improving the vibration isolation capability of the main spring in the X-direction. An flared structure is formed on the outer side of the multiple hemispheres, giving the hemispheres an equivalent damping effect in the Y-direction as in the Z-direction. The first damping chambers within the hemispheres provide damping in the Y-direction of the main spring, thus improving its vibration isolation capability in the Y-direction. The two limiting rubber bodies are installed along the Y-direction on opposite inner walls of the outer frame, and a rotating body is installed on the side of the limiting rubber bodies closest to the main spring. Before colliding with the limiting rubber bodies in the Z-direction, the main spring first collides with the rotating body, which rotates under the impact of the main spring, thereby buffering the impact on the limiting rubber bodies. The rubber suspension provided by this invention can effectively improve the vibration isolation capability of the main spring in the X and Y directions, and can buffer the impact of the main spring colliding with the limiting rubber in the Z direction, thereby reducing abnormal noise.

[0016] The present invention also provides a vehicle including the aforementioned rubber suspension.

[0017] The vehicle provided by the present invention has the same beneficial effects as the rubber suspension because it uses the above-mentioned rubber suspension, which will not be described in detail here. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a rubber suspension structure provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a rubber suspension after the main spring has been removed, according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of a rubber suspension main spring provided in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of a rubber-suspended rotating body provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a rubber suspension limiting colloid provided in an embodiment of the present invention;

[0024] Figure 6 This is a force diagram showing the collision between the roller and the main spring, provided in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. External frame; 110. Base; 120. U-shaped skeleton; 121. First through hole; 122. Second through hole; 130. Limiting plate;

[0027] 200. Main spring; 210. Hemisphere; 211. Hemispherical chamber; 220. Intermediate body; 221. Mounting hole;

[0028] 300. Rotating body; 310. Rotating support; 311. Lug; 320. Roller; 330. Bearing;

[0029] 400. Limiting colloid; 410. Conical chamber;

[0030] 500. Connecting bracket;

[0031] 600, support arm. Detailed Implementation

[0032] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0033] Please see Figures 1 to 5 The present invention will now describe a rubber suspension. A rubber suspension includes an outer frame 100, a main spring 200, and two limiting rubber bodies 400. The main spring 200 is disposed within the outer frame 100. The two limiting rubber bodies 400 are disposed along the Z-direction on opposite inner walls of the outer frame 100, and are located on opposite sides of the main spring 200. The main spring 200 includes a plurality of hemispheres 210 connected sequentially along the X-direction and arranged facing away from each other. A first damping chamber is formed within each hemisphere 210. A rotating body 300 is provided on the side of each limiting rubber body 400 near the main spring 200. The rotating body 300 buffers the impact of the main spring 200 colliding with the limiting rubber body 400 by rotating itself.

[0034] This invention provides a rubber suspension system. Compared with existing technologies, an outer frame 100 houses a main spring 200 and two limiting rubber bodies 400. Multiple hemispheres 210 of the main spring 200 are arranged sequentially back-to-back along the X-direction, and each hemisphere 210 has a first damping chamber. The formation of two first damping chambers in the X-direction of the main spring 200 creates a non-solid structure in the X-direction, thereby improving the vibration isolation capability of the main spring 200. The outer sides of the multiple hemispheres 210 form flared structures, giving each hemisphere 210 a damping effect in the Y-direction equivalent to that in the Z-direction. The first damping chambers within the hemispheres 210 provide damping in the Y-direction of the main spring 200, thus improving the vibration isolation capability of the main spring 200 in the Y-direction. Two limiting rubber bodies 400 are installed along the Y-axis on opposite inner sidewalls of the outer frame 100. A rotating body 300 is installed on the side of the limiting rubber body 400 closest to the main spring 200. Before the main spring 200 collides with the limiting rubber body 400 in the Z-axis, it first collides with the rotating body 300. The rotating body 300 rotates under the impact of the main spring 200, thereby buffering the impact on the limiting rubber body 400. The rubber suspension provided by this invention can effectively improve the vibration isolation capability of the main spring 200 in the X and Y directions, and can buffer the impact of the main spring 200 colliding with the limiting rubber body 400 in the Z-axis, reducing abnormal noise.

[0035] Specifically, refer to Figure 1 and Figure 2The outer frame 100 includes a base 110 and a U-shaped frame 120. The U-shaped frame 120 is fastened to the upper surface of the base 110 along the Z-direction. The open end of the U-shaped frame 120 has a flange, which is riveted to the base 110 to form the outer frame 100. Reinforcing ribs are provided on the side plates and the outer side of the flange of the U-shaped frame 120 to provide overall structural strength. The base 110 and the U-shaped frame 120 adopt a split design, which can improve the platformization of the outer frame 100 and the main spring 200. When the powertrain changes, only the structure of the base 110 needs to be adjusted for installation, reducing development costs.

[0036] The outer frame 100, formed by the base 110 and the U-shaped frame 120, has two openings in the Y direction. The support arm 600 extends into the opening in the positive Y direction and is installed on the main spring 200. A limiting plate 130 is installed at the opening in the opposite Y direction. The limiting plate 130 can limit the distance that the main spring 200 moves in the opposite Y direction, so as to prevent the main spring 200 from moving too far in the opposite Y direction, which would cause the main spring 200 to not be fully aligned with the rotating body 300, or cause the main spring 200 to fall out of the opening of the outer frame 100 in the opposite Y direction.

[0037] In addition, two limiting adhesives 400 are vulcanized on the upper inner wall of the U-shaped frame 120 and the upper surface of the base 110, respectively. A connecting bracket 500 is provided on the upper outer side of the U-shaped fixing to connect other related components to the rubber suspension provided by the present invention.

[0038] For preferred options, please refer to [link / reference]. Figures 1 to 3 The two hemispheres 210 are connected sequentially along the X-direction and arranged facing away from each other. The first vibration damping chamber is a hemispherical chamber 211 formed on the outer end face of the hemisphere 210. The hemispherical chamber 211 is arranged to conform to the shape of the hemisphere 210 so that the circumferential wall thickness of the hemisphere 210 is equal.

[0039] The conformal fit between the hemisphere 210 and the hemisphere chamber 211 enables the stiffness of the main spring 200 to be approximately the same in the Y and Z directions, thereby improving the suspension's Y-direction limiting capability and better controlling the powertrain displacement when the powertrain's movement amplitude is large.

[0040] In some embodiments, please refer to Figure 1The outer frame 100 has first through holes 121 on both side walls along the X direction. The two hemispheres 210 of the main spring 200 are vulcanized on the two opposite inner side walls of the U-shaped skeleton 120 of the outer frame 100. The first through holes 121 on the two opposite inner walls of the U-shaped skeleton 120 can connect to the corresponding hemispherical chambers 211, so that the hemispherical chambers 211 can communicate with the external environment. When the main spring 200 vibrates and causes the hemispherical chambers 211 to deform, the internal pressure of the hemispherical chambers 211 will change due to the deformation. The first through holes 121 can balance the internal air pressure of the hemispherical chambers 211, avoiding excessive pressure changes that could lead to instability or even damage to the hemispheres 210.

[0041] For preferred options, please refer to [the provided text]. Figure 1 and Figure 3 The intermediate body 220 is integrally formed between the two hemispheres 210, thus combining the two hemispheres 210 into a single structure. This not only improves the structural strength of the main spring 200 itself, but also provides mounting holes 221 that penetrate the intermediate body 220 along the Y direction for mounting the support arm 600. The outer surface of the intermediate body 220 smoothly transitions to the outer surface of the hemispheres 210, forming a concave arc surface on the outer periphery of the intermediate body 220. This enhances the vibration damping effect when the main spring 200 undergoes Z-direction deformation.

[0042] In addition, the intermediate body 220 is located in the middle of the two hemispheres 210. When the main spring 200 undergoes Z-direction deformation, the concave arc surface of the intermediate body 220 can maximize the distance between the main spring 200 and the rotating body 300, reduce the possibility of the main spring 200 impacting the rotating body 300 when it deforms in the Z direction, and thus reduce the probability of the main spring 200 impacting the limiting colloid 400 in the Z direction, thereby reducing the probability of abnormal noise.

[0043] In some embodiments, please refer to Figure 4 The rotating body 300 includes a rotating bracket 310, two lugs 311, and a roller 320. The rotating bracket 310 is a disc structure, bonded to the end face of the corresponding limiting adhesive 400 near the main spring 200. The two lugs 311 are symmetrically arranged at intervals on the end face of the disc near the main spring 200, and two connecting through holes are coaxially formed on the two lugs 311. The bearing 330 is press-fitted into the roller 320 through an interference fit. After the roller 320 and the bearing 330 are combined, the central shaft of the roller 320 passes through the two connecting through holes. The outer arc surface of the roller 320 protrudes from the end of the lug 311, and the outer arc surface of the roller 320 rotates by bearing the impact of the main spring 200.

[0044] Please refer to Figure 6When the main spring 200 impacts the outer arc surface of the roller 320, the impact force is F, and the direction is Z. Since the collision surface is arc-shaped, the roller 320 will decompose the force F it receives into rotational forces F1 and F2 along its tangential direction, thereby causing the roller 320 to rotate axially, thus offsetting part of the impact force and reducing abnormal noise. In addition, when the main spring 200 vibrates along the X and Y directions while impacting the roller 320, the component forces F1 and F2 formed by the impact force F will form different directions. If the tangential angle of one component force is larger, it can cause the roller 320 to rotate, while the tangential angle of the other component force is smaller, which will push the limiting colloid 400 to deform with the help of the rotating body 300, thereby reducing abnormal noise.

[0045] Reference Figure 2 and Figure 5 A second damping chamber is provided on the side of the limiting colloid 400 near the outer frame 100. The limiting colloid 400 has a frustum-shaped structure, with its outer diameter gradually decreasing from the outer frame 100 towards the main spring 200. Similarly, the second damping chamber is also a conical chamber 410 and conforms to the frustum-shaped structure, thus forming a uniform wall thickness structure for the limiting colloid 400, ensuring its structural strength and deformation capacity. When the main spring 200 impacts the rotating body 300, the rotation of the roller 320 of the rotating body 300 provides initial impact cushioning, and the limiting colloid 400, through the second damping chamber, provides secondary impact cushioning, thereby minimizing the impact noise of the main spring 200 in the Z direction.

[0046] The outer frame 100 has two second through holes 122 on its two side walls along the Z direction. The second through holes 122 connect to the corresponding second damping chambers, allowing the second damping chambers to communicate with the external environment. When the main spring 200 collides with the rotating body 300, causing the limiting colloid 400 to deform and thus the second damping chamber to deform, the internal pressure of the second damping chamber will change due to the deformation. The second through holes 122 can balance the internal air pressure of the second damping chamber, preventing excessive pressure changes that could lead to instability or even damage to the limiting colloid 400.

[0047] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rubber suspension, characterized in that, The device includes an outer frame (100), a main spring (200), and two limiting colloids (400). The main spring (200) is located inside the outer frame (100). The two limiting colloids (400) are respectively located on opposite inner walls of the outer frame (100) along the Z direction and on both sides of the main spring (200). The main spring (200) includes a plurality of hemispheres (210) connected sequentially along the X direction and arranged in opposite directions. A first damping chamber is formed in the hemisphere (210). A rotating body (300) is provided on the side of the limiting colloid (400) near the main spring (200). The rotating body (300) rotates itself to buffer the impact of the main spring (200) colliding with the limiting colloid (400). The rotating body (300) includes a rotating bracket (310) connected to the limiting colloid (400) on the side near the main spring (200). A roller (320) is rotatably arranged on the side of the rotating bracket (310) near the main spring (200). The outer arc surface of the roller (320) decomposes the impact force received by the main spring (200) into two tangential components to form its own rotation and offset part of the impact force.

2. The rubber suspension as described in claim 1, characterized in that, The first vibration damping chamber is a hemispherical chamber (211) opened on the outer end face of the hemisphere (210).

3. A rubber suspension as described in claim 2, characterized in that, The outer frame (100) has a first through hole (121) on each of its two side walls along the X direction, which connects to the corresponding hemispherical chamber (211).

4. A rubber suspension as described in claim 2, characterized in that, An intermediate body (220) is integrally formed between the two hemispheres (210), and the intermediate body (220) has a mounting hole (221) for mounting the support arm (600) along the Y direction.

5. A rubber suspension as described in claim 1, characterized in that, The rotating bracket (310) has two lugs (311) spaced apart on the side near the main spring (200). The roller (320) is rotatably disposed between the two lugs (311) via a bearing (330), and the outer arc surface of the roller (320) protrudes from the end of the lug (311) to contact the main spring (200).

6. A rubber suspension as described in claim 1, characterized in that, The limiting colloid (400) has a second vibration damping chamber on the side near the outer frame (100).

7. A rubber suspension as described in claim 6, characterized in that, The outer frame (100) has a second through hole (122) on each of its two side walls along the Z direction, which connects to the second vibration damping chamber.

8. A rubber suspension as described in any one of claims 1-7, characterized in that, The external frame (100) includes a base (110) and a U-shaped skeleton (120) connected to the end face of the base (110) along the Z direction. The main spring (200) is disposed in the U-shaped skeleton (120) along the X direction. The two limiting colloids (400) are respectively disposed along the Z direction on the end faces of the U-shaped skeleton (120) and the base (110).

9. A vehicle, characterized in that, Including the rubber suspension as described in any one of claims 1-8.

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