Metal rubber composite high-performance rubber main spring
The metal-rubber composite structure design solves the problem of uneven stiffness of the rubber main spring under light and heavy loads, improves the strength and shock absorption effect, extends the service life, and ensures the smoothness of the vehicle under different load conditions.
Patent Information
- Application Number
- CN202520156288.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing automotive rubber main springs have uneven stiffness under light and heavy loads, resulting in a limited service life and prone to cracking.
It adopts a metal-rubber composite structure, including top, bottom and middle bowl-shaped brackets. The brackets and rubber blocks are vulcanized as one piece, with the same bending curvature and equal spacing, which increases the contact area between the brackets and the rubber blocks and forms an arc-shaped bowl structure.
The strength and shock absorption performance of the rubber main spring are improved, the risk of cracking of the rubber and bracket is reduced, the ability to withstand compression and heavy loads is enhanced, the service life is extended, and the vehicle is ensured to run smoothly under different load conditions.
Smart Images
Figure CN223359761U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile shock absorbing devices, in particular to a metal-rubber composite high-performance rubber main spring. Background Art
[0002] In the automobile suspension system, the rubber main spring is required to have low stiffness under light load to ensure comfort. Under heavy load, the stiffness must be high to ensure load bearing. The main spring mainly bears the load and increases the stiffness of the suspension, preventing the vibration frequency of the vehicle body from changing too much due to the increase in load, and mainly plays a shock-absorbing and buffering role. In the existing technology, the internal structure of the rubber main spring mostly adopts a flat bracket or a single-sided bracket. The disadvantage of this structure is that the internal bracket cannot release the external force evenly, and can only act on a certain point or one place, which puts the rubber and the bracket at risk of cracking. Due to frequent compression and heavy loads, its service life is limited. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a metal-rubber composite high-performance rubber main spring with high strength and long service life.
[0004] In order to solve the above technical problems, the technical solution of the utility model is: a metal-rubber composite high-performance rubber main spring, including a top bowl-shaped bracket and a bottom bowl-shaped bracket, and more than two layers of intermediate bowl-shaped brackets are provided between the top bowl-shaped bracket and the bottom bowl-shaped bracket, the top bowl-shaped bracket, the bottom bowl-shaped bracket and the intermediate bowl-shaped bracket have the same bending curvature and equal spacing, a top rubber block is integrally vulcanized between the top bowl-shaped bracket and the adjacent intermediate bowl-shaped bracket, an intermediate rubber block is integrally vulcanized between the two adjacent intermediate bowl brackets, and a bottom rubber block is integrally vulcanized between the bottom bowl-shaped bracket and the adjacent intermediate bowl bracket.
[0005] As an optimal technical solution, the top bowl-shaped bracket includes a top square flat plate, the four corners of the top square flat plate are respectively provided with top mounting holes, a bowl-shaped surrounding bracket is provided at the center of the lower surface of the top square flat plate extending downward in an arc shape, a top horizontal flange is provided at the bowl mouth of the bowl-shaped surrounding bracket, and multiple reinforcing ribs are provided between the top square flat plate and the top horizontal flange.
[0006] As a preferred technical solution, the top rubber block includes a top rubber body adapted to the bowl-shaped surrounding bracket, and a top rubber horizontal flange is provided at the lower part of the top rubber body, and the top rubber horizontal flange is inclined to one side by 10° to 30°.
[0007] As a preferred technical solution, the top rubber horizontal flange is inclined 20° to one side.
[0008] As a preferred technical solution, the bottom bowl-shaped bracket includes a bottom square flat plate, the four corners of which are respectively provided with bottom mounting holes, and the middle of the bottom square flat plate is bent upward and protruded to provide a bowl-shaped surrounding bracket.
[0009] As a preferred technical solution, the bottom rubber block includes a bottom rubber body adapted to the bowl-shaped surrounding bracket, and a bottom rubber horizontal flange is provided at the lower part of the bottom rubber body, and the bottom rubber horizontal flange is inclined to one side by 10° to 30°.
[0010] As a preferred technical solution, the bottom rubber horizontal flange is inclined 20° to one side.
[0011] As a preferred technical solution, the middle bowl-shaped bracket includes a bowl-shaped spacer bracket, and the bowl mouth of the bowl-shaped spacer bracket is provided with a middle horizontal flange, and the middle horizontal flange is consistent in shape and size with the top horizontal flange.
[0012] As a preferred technical solution, the middle rubber block includes a middle rubber body adapted to the bowl-shaped spacer bracket, and a middle rubber horizontal flange is provided at the lower part of the middle rubber body, and the middle rubber horizontal flange is inclined to one side by 10° to 30°.
[0013] As a preferred technical solution, the middle rubber horizontal flange is tilted 20 degrees to one side.
[0014] Due to the adoption of the above technical solution, the metal-rubber composite high-performance rubber main spring includes a top bowl-shaped bracket and a bottom bowl-shaped bracket, with two or more layers of intermediate bowl-shaped brackets disposed between the top and bottom bowl-shaped brackets. The top, bottom, and intermediate bowl-shaped brackets have the same curvature and are spaced equally apart. A top rubber block is integrally vulcanized between the top bowl-shaped bracket and its adjacent intermediate bowl-shaped bracket, an intermediate rubber block is integrally vulcanized between two adjacent intermediate bowl-shaped brackets, and a bottom rubber block is integrally vulcanized between the bottom bowl-shaped bracket and its adjacent intermediate bowl-shaped bracket. The beneficial effects of the present invention are: changing the bracket shape from a plate to an arc-shaped bowl increases the contact area between the bracket and the rubber block, increases internal strength by more than 30%, provides better shock absorption and buffering, reduces the risk of cracking between the rubber and the bracket, and enhances the ability to withstand compression and heavy loads. The top, bottom, and intermediate bowl-shaped brackets are all stamped, and the four brackets are integrally vulcanized into a vulcanized part with a skeleton. This new rubber main spring has increased strength, providing excellent shock absorption and cushioning. Even under heavy and uneven loads, the suspension maintains uniform force, adapting to varying vehicle load conditions. This effectively mitigates sudden frequency fluctuations in the suspension when the vehicle is unloaded, moderately loaded, and fully loaded, ensuring a smooth and comfortable ride. The structure between the rubber and the bracket remains relatively stable even in the presence of uneven loads, preventing cracking between the bracket and rubber, significantly extending the vehicle's service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.
[0016] Figure 1 This is one of the three-dimensional structural diagrams of the metal-rubber composite high-performance rubber main spring of the utility model;
[0017] Figure 2 Figure 1 A-direction view in;
[0018] Figure 3 yes Figure 2 CC view in the figure;
[0019] Figure 4 yes Figure 1 Middle B-direction view;
[0020] Figure 5 This is a schematic structural diagram of the top bowl-shaped bracket of the metal-rubber composite high-performance rubber main spring of the utility model;
[0021] Figure 6 This is a cross-sectional view of the top bowl-shaped bracket of the metal-rubber composite high-performance rubber main spring of the utility model;
[0022] Figure 7 This is a schematic structural diagram of the middle bowl-shaped bracket of the metal-rubber composite high-performance rubber main spring of the utility model;
[0023] Figure 8 It is a structural schematic diagram of the bowl-shaped bracket at the bottom of the metal-rubber composite high-performance rubber main spring of the utility model.
[0024] In the figure: 1-top bowl-shaped bracket; 11-top square flat plate; 12-bowl-shaped surrounding bracket; 13-top horizontal flange; 14-reinforcement rib; 15-top mounting hole; 2-bottom bowl-shaped bracket; 21-bottom square flat plate; 22-bowl-shaped surrounding bracket; 23-bottom mounting hole; 3-middle bowl-shaped bracket; 31-bowl-shaped spacer bracket; 32-middle horizontal flange; 4-top rubber block; 41-top rubber body; 42-top rubber horizontal flange; 5-middle rubber block; 51-middle rubber body; 52-middle rubber horizontal flange; 6-bottom rubber block; 61-bottom rubber body; 62-bottom rubber horizontal flange. DETAILED DESCRIPTION
[0025] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.
[0026] like Figures 1 to 8 As shown, the metal-rubber composite high-performance rubber main spring includes a top bowl-shaped bracket 1 and a bottom bowl-shaped bracket 2. Two or more layers of intermediate bowl-shaped brackets 3 are disposed between the top and bottom bowl-shaped brackets 1 and 2. The top, bottom, and intermediate bowl-shaped brackets 3 have the same curvature and are spaced evenly apart. A top rubber block 4 is integrally vulcanized between the top bowl-shaped bracket 1 and its adjacent intermediate bowl-shaped bracket 3, an intermediate rubber block 5 is integrally vulcanized between two adjacent intermediate bowl-shaped brackets 3, and a bottom rubber block 6 is integrally vulcanized between the bottom bowl-shaped bracket 2 and its adjacent intermediate bowl-shaped bracket 3. Changing the bracket shape from a plate to an arc-shaped bowl increases the contact area between the bracket and the rubber block, increasing internal strength by over 30%, providing better shock absorption and buffering, reducing the risk of cracking between the rubber and the bracket, and enhancing its ability to withstand compression and heavy loads. The top, bottom, and intermediate bowl-shaped brackets 1, 2, and 3 are all stamped, and the four brackets are integrally vulcanized into a vulcanized part with a skeleton. This new rubber main spring has increased strength, providing excellent shock absorption and cushioning. Even under heavy and uneven loads, the suspension maintains uniform force, adapting to varying vehicle load conditions. This effectively mitigates sudden frequency fluctuations in the suspension when the vehicle is unloaded, moderately loaded, and fully loaded, ensuring a smooth and comfortable ride. The structure between the rubber and the bracket remains relatively stable even in the presence of uneven loads, preventing cracking between the bracket and rubber, significantly extending the vehicle's service life.
[0027] like Figure 6 As shown, the top bowl-shaped bracket 1 includes a top square flat plate 11, with top mounting holes 15 provided at the four corners of the top square flat plate 11. A bowl-shaped enclosure bracket 12 is provided at the center of the lower surface of the top square flat plate 11, extending downward in an arc shape. The bowl-shaped enclosure bracket 12 is provided with a top horizontal flange 13 at the bowl mouth. The top horizontal flange 13 is a regular octagon in this embodiment, but can also be a circle, ellipse, or other polygon. A plurality of reinforcing ribs 14 are provided between the top square flat plate 11 and the top horizontal flange 13. The reinforcing ribs 14 provide more effective support for the bowl-shaped enclosure bracket 12. In this embodiment, four reinforcing ribs 14 are provided, but the number can be increased or decreased according to actual conditions.
[0028] like Figures 1 to 4As shown, the top rubber block 4 includes a top rubber body 41 that is compatible with the bowl-shaped surrounding bracket 12. The bottom of the top rubber body 41 is provided with a top rubber horizontal flange 42, which is inclined to one side by 10° to 30°. The curvature of the bowl-shaped surrounding bracket 12 is consistent with the curvature of the top rubber body 41. The upper surface of the top rubber body 41 is tightly fitted and vulcanized with the bowl-shaped surrounding bracket 12, and the lower surface of the top rubber body 41 is tightly fitted and vulcanized with the bowl-shaped spacer bracket 31. Figure 3 As shown, in this embodiment, the top rubber horizontal flange 42 is inclined 20° to one side.
[0029] like Figure 8 As shown, the bottom bowl-shaped bracket 2 includes a bottom square flat plate 21, the four corners of which are provided with bottom mounting holes 23, and the middle of the bottom square flat plate 21 is bent upward and protruded to provide a bowl-shaped surrounding bracket 22. Figures 1 to 4 As shown in the figure, the bottom rubber block 6 includes a bottom rubber body 61 adapted to the bowl-shaped bracket 22. The bottom of the bottom rubber body 61 is provided with a bottom rubber horizontal flange 62, which is inclined to one side by 10° to 30°. Figure 3 As shown, in this embodiment, the bottom rubber horizontal flange 62 is tilted 20° to one side. The curvature of the bowl-shaped bracket 22 is consistent with the curvature of the bottom rubber body 61. The lower surface of the bottom rubber body 61 is tightly bonded to the bowl-shaped bracket 22 and vulcanized together, while the upper surface of the bottom rubber body 61 is tightly bonded to the bowl-shaped spacer 31 and vulcanized together.
[0030] like Figure 7 As shown, the middle bowl-shaped bracket 3 includes a bowl-shaped spacer bracket 31, and a middle horizontal flange 32 is provided at the bowl mouth of the bowl-shaped spacer bracket 31. The middle horizontal flange 32 is consistent in shape and size with the top horizontal flange 13. Figure 3 As shown, the middle rubber block 5 includes a middle rubber body 51 adapted to the bowl-shaped spacer bracket 31. The lower portion of the middle rubber body 51 is provided with a middle rubber horizontal flange 52, which is inclined to one side by 10° to 30°. The upper and lower surfaces of the middle rubber body 51251 are tightly bonded and vulcanized with the bowl-shaped spacer bracket 31231. Figure 3 As shown, in this embodiment, the middle rubber horizontal flange 52 is tilted 20 degrees to one side.
[0031] The top rubber horizontal flange 42, the middle rubber horizontal flange 52 and the bottom rubber horizontal flange 62 have the same inclination angle, so their outer surfaces are on the same plane. Figure 3As shown, in this embodiment, the top horizontal rubber flange 42 is tilted to one side at ∠a=20°; the middle horizontal rubber flange 52 is tilted to one side at ∠a=20°; and the bottom horizontal rubber flange 62 is tilted to one side at ∠a=20°. The tilt angles can be adjusted appropriately based on actual usage, and are within the scope of protection of this utility model.
[0032] The bottom bowl-shaped bracket 2, the top bowl-shaped bracket 1 and the middle bowl-shaped bracket 3 in the present invention are all cast iron parts.
[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.
[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. Metal-rubber composite high-performance rubber main spring, characterized by: The invention comprises a top bowl-shaped support (1) and a bottom bowl-shaped support (2), wherein two or more layers of intermediate bowl-shaped supports (3) are provided between the top bowl-shaped support (1) and the bottom bowl-shaped support (2), wherein the top bowl-shaped support (1), the bottom bowl-shaped support (2) and the intermediate bowl-shaped support (3) have the same curvature and equal spacing, wherein a top rubber block (4) is integrally vulcanized between the top bowl-shaped support (1) and the adjacent intermediate bowl-shaped support (3), an intermediate rubber block (5) is integrally vulcanized between two adjacent intermediate bowl-shaped supports (3), and a bottom rubber block (6) is integrally vulcanized between the bottom bowl-shaped support (2) and the adjacent intermediate bowl-shaped support (3).
2. The metal-rubber composite high-performance rubber main spring according to claim 1, characterized in that: The top bowl-shaped bracket (1) comprises a top square flat plate (11), four corners of the top square flat plate (11) are respectively provided with top mounting holes (15), a bowl-shaped surrounding bracket (12) is provided at the center of the lower surface of the top square flat plate (11) and extends downward in an arc shape, a top horizontal flange (13) is provided at the bowl mouth of the bowl-shaped surrounding bracket (12), and a plurality of reinforcing ribs (14) are provided between the top square flat plate (11) and the top horizontal flange (13).
3. The metal-rubber composite high-performance rubber main spring according to claim 2, characterized in that: The top rubber block (4) comprises a top rubber body (41) adapted to the bowl-shaped surrounding bracket (12), a top rubber horizontal flange (42) being provided at the lower portion of the top rubber body (41), and the top rubber horizontal flange (42) being inclined to one side by 10° to 30°.
4. The metal-rubber composite high-performance rubber main spring according to claim 3, characterized in that: The top rubber horizontal flange (42) is inclined 20° to one side.
5. The metal-rubber composite high-performance rubber main spring according to claim 1, characterized in that: The bottom bowl-shaped bracket (2) comprises a bottom square flat plate (21), four corners of the bottom square flat plate (21) are respectively provided with bottom mounting holes (23), and the middle portion of the bottom square flat plate (21) is bent upward and protruded to provide a bowl-shaped surrounding bracket (22).
6. The metal-rubber composite high-performance rubber main spring according to claim 5, characterized in that: The bottom rubber block (6) comprises a bottom rubber body (61) adapted to the bowl-shaped surrounding bracket (22), and a bottom rubber horizontal flange (62) is provided at the lower portion of the bottom rubber body (61), wherein the bottom rubber horizontal flange (62) is inclined to one side by 10° to 30°.
7. The metal-rubber composite high-performance rubber main spring according to claim 6, characterized in that: The bottom rubber horizontal flange (62) is inclined 20° to one side.
8. The metal-rubber composite high-performance rubber main spring according to claim 2, characterized in that: The middle bowl-shaped support (3) comprises a bowl-shaped spacer support (31), and a middle horizontal flange (32) is provided at the bowl mouth of the bowl-shaped spacer support (31). The middle horizontal flange (32) is consistent in shape and size with the top horizontal flange (13).
9. The metal-rubber composite high-performance rubber main spring according to claim 8, characterized in that: The intermediate rubber block (5) comprises an intermediate rubber body (51) adapted to the bowl-shaped spacer bracket (31), and a intermediate rubber horizontal flange (52) is provided at the lower portion of the intermediate rubber body (51), wherein the intermediate rubber horizontal flange (52) is inclined to one side by 10° to 30°.
10. The metal-rubber composite high-performance rubber main spring according to claim 9, characterized in that: The middle rubber horizontal flange (52) is inclined 20 degrees to one side.