A spring tray, rear suspension spring arm structure, rear suspension system and automobile

Abstract

The utility model relates to a spring tray, rear suspension spring arm structure, rear suspension system and car, this spring tray includes: tray body and elastic base, is equipped with the concave area on the tray body, is equipped with annular limit slot for the lower end of spring is limited on it in the concave area distribution, the side wall of concave area is equipped with the positioning rib for positioning elastic base, the utility model has the advantages of simple structure, reasonable in design, through the concave body adaptation installation space, the accurate fixing of spring bottom rubber is realized in combination with the middle annular positioning rib, the stability of spring work is promoted, reduces the suspension abnormal sound risk, is applicable to the assembly scene of various car rear suspension spring arm.

Description

Technical Field

[0001] This utility model relates to the field of automotive rear suspension technology, specifically to a spring tray, a rear suspension spring arm structure, a rear suspension system, and an automobile. Background Technology

[0002] In automotive rear suspension systems, the spring tray is a crucial component connecting the spring and the spring arm. Its main function is to bear the axial load of the spring and provide a stable mounting reference. Existing spring trays mostly employ an upward-convex structure, which, while meeting basic load-bearing requirements, has limitations in its compatibility with the rear suspension spring arm structure. Due to spatial layout requirements, the mounting surface of the rear suspension spring arm structure is often non-planar, requiring additional fitting parts for the upward-convex tray to fit snugly, increasing assembly complexity. Furthermore, existing trays rely heavily on friction to secure the spring's bottom rubber, lacking a precise radial limiting structure. During vehicle operation, the spring is prone to displacement due to vibration, affecting suspension comfort, potentially causing abnormal noises, and even shortening the spring's lifespan. To solve the above problems, it is necessary to design a spring tray that is compatible with the mounting surface of the rear suspension spring arm structure and can stably fix the bottom rubber of the spring. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a spring tray, a rear suspension spring arm structure, a rear suspension system, and an automobile.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A spring tray includes: a tray body and an elastic base, wherein the tray body has a recessed area; the elastic base is distributed in the recessed area and has an annular limiting groove for limiting the lower end of the spring; the sidewall of the recessed area has a positioning rib for positioning the elastic base.

[0005] The beneficial effects of this utility model are: during assembly, the tray body has a concave structure as a whole, and the two sides are connected to the spring arm by welding; the center of the concave area in the tray body has an integrally formed upward-protruding positioning rib, which, together with the annular limiting groove on the elastic base, can not only limit the elastic base and prevent the spring from shifting, but also avoid assembly difficulties caused by interference fit.

[0006] This utility model has a simple structure and reasonable design. By adapting the recessed body to the installation space and combining it with the central annular positioning rib, it can accurately fix the rubber at the bottom of the spring, improve the stability of the spring during operation, reduce the risk of abnormal noise from the suspension, and is suitable for assembly scenarios of various automotive rear suspension spring arms.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the recessed area has a circular groove-like structure with a through hole at its center; the elastic base is an annular base, and the positioning rib is an annular positioning rib.

[0009] The advantages of adopting the above-mentioned further solution are that the structure is simple, the shape design of the recessed area, the elastic base and the positioning rib is reasonable, they are compatible with each other and easy to assemble.

[0010] Furthermore, the inner wall of the annular positioning rib is clearance-fitted with the outer wall of the elastic base, and the gap between the inner wall of the annular positioning rib and the outer wall of the elastic base is controlled at 0.5-1mm.

[0011] The advantages of adopting the above-mentioned further solution are that the structure is simple, the distribution of the annular positioning rib and the elastic base is more reasonable, which can not only achieve radial limiting of the bottom of the spring to prevent the spring from deviating, but also avoid the assembly difficulties caused by interference fit.

[0012] Furthermore, the inner wall of the annular positioning rib is provided with an arc transition surface, which extends inward from the top of the annular positioning rib to the bottom of the recessed area.

[0013] The advantages of adopting the above-mentioned further solution are that the structure is simple, the arc transition surface set on the inner wall of the annular positioning rib is more reasonable, which can reduce the contact stress between the elastic base and the annular positioning rib and prevent the elastic base from being damaged by local compression.

[0014] Furthermore, the recessed area is provided with a plurality of weight-reducing holes at uniform intervals.

[0015] The advantages of adopting the above-mentioned further solution are that the structure is simple, and it is reasonable to evenly space multiple weight-reducing holes in the recessed area on the pallet body. This reduces the weight of the pallet without affecting the structural strength, meets the requirements of automotive lightweighting, and reduces costs.

[0016] Furthermore, the pallet body is formed by stamping high-strength steel, and its surface is coated with an anti-rust coating.

[0017] The advantages of adopting the above-mentioned further solutions are that the structure is simple, the pallet body is reasonably formed, and the processing is convenient; In addition, it is more reasonable to spray a layer of anti-rust coating on the pallet body, which takes into account both structural strength and corrosion resistance, extends the service life of the pallet body, and reduces costs.

[0018] This utility model also relates to a rear suspension spring arm structure, including a spring arm, a spring, and a spring tray as described above, with the tray body fixedly mounted on the spring arm; the spring is distributed above the tray body, with its lower end extending into a recessed area on the tray body and into an annular limiting groove on the elastic base.

[0019] The beneficial effect of adopting the above-mentioned further solution is that during assembly, the entire pallet body has a concave structure, and the two sides are connected to the spring arms by welding; the central part of the concave area in the pallet body has an integrally formed upward-protruding positioning rib, which, together with the annular limiting groove on the elastic base, can not only limit the elastic base and prevent the spring from shifting, but also avoid assembly difficulties caused by interference fit. In addition, this utility model also provides a rear suspension spring arm structure. The rear suspension spring arm structure is simple in structure and reasonable in design. By adapting the recessed body to the installation space and combining the central annular positioning rib, it can accurately fix the rubber at the bottom of the spring, improve the stability of the spring during operation, reduce the risk of abnormal noise from the suspension, and is suitable for assembly scenarios of various automotive rear suspension spring arms.

[0020] Furthermore, the spring arm includes two arm bodies, which are distributed opposite to each other and are fixedly connected on one side by a connecting plate. Each of the two arm bodies has a pair of mounting holes at its two ends. The tray body is fixedly installed between the other two arm bodies.

[0021] The advantages of adopting the above-mentioned further solution are that the structure is simple, the spring arm is made of two arm bodies welded together, the structural design is more reasonable, and it is convenient to assemble the spring tray, which facilitates the stable assembly of the spring in the future.

[0022] This utility model also relates to a rear suspension system, including the rear suspension spring arm structure as described above.

[0023] The beneficial effect of adopting the above-mentioned further solution is that this utility model also provides a rear suspension system. The rear suspension system has a simple structure and reasonable design. By adapting the recessed body to the installation space and combining the central annular positioning rib, it can accurately fix the bottom rubber of the spring, improve the stability of the spring during operation, reduce the risk of abnormal noise from the suspension, and is suitable for the assembly scenarios of various automotive rear suspension spring arms.

[0024] This utility model also relates to an automobile, including the rear suspension system described above.

[0025] The beneficial effect of adopting the above-mentioned further solution is that this utility model also provides a car with a simple structure and reasonable design. By adapting the recessed body to the installation space and combining the central annular positioning rib, the bottom rubber of the spring is accurately fixed, which improves the stability of the spring during operation, reduces the risk of abnormal noise from the suspension, and is suitable for the assembly scenarios of rear suspension spring arms of various automobiles. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the spring tray structure in this utility model; Figure 2 This is a partial sectional view of the spring tray in this utility model; Figure 3 This is a partial schematic diagram of the recessed area in the spring tray of this utility model; Figure 4 This is an assembly diagram of the spring being assembled on the spring tray in this utility model; Figure 5 This is one of the structural schematic diagrams of the rear suspension system in this utility model; Figure 6 This is the second structural schematic diagram of the rear suspension system in this utility model.

[0027] The attached diagram lists the components represented by each number as follows: 1. Elastic base; 2. Annular positioning rib; 3. Tray body; 4. Recessed area; 5. Weight reduction hole; 6. Spring; 7. Spring arm; 71. Arm body; 72. Mounting hole; 8. Annular limiting groove. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0031] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0032] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0033] Example 1 like Figures 1 to 4 As shown, this embodiment provides a spring tray, including: a tray body 3 and an elastic base 1. The tray body 3 is provided with a recessed area 4; the elastic base 1 is distributed in the recessed area 4, and is provided with an annular limiting groove 8 for limiting the lower end of the spring 6; the side wall of the recessed area 4 is provided with a positioning rib for positioning the elastic base 1.

[0034] During assembly, the tray body 3 has a concave structure as a whole, and the two sides are connected to the spring arm 7 by welding. The concave area 4 in the tray body 3 has an integrally formed upward protruding positioning rib in the middle, which, together with the annular limiting groove 8 on the elastic base 1, can not only limit the elastic base 1 and prevent the spring 6 from shifting, but also avoid assembly difficulties caused by interference fit.

[0035] Preferably, in this embodiment, the tray body 3 has a structure that is thin at both ends and thick in the middle, and the recessed area 4 is distributed in the middle of the tray body 3.

[0036] Preferably, in this embodiment, the elastic base 1 is preferably a rubber base, which has better elasticity and lower cost.

[0037] This embodiment has a simple structure and reasonable design. By adapting the recessed body to the installation space and combining it with the central annular positioning rib, it can accurately fix the rubber at the bottom of the spring, improve the stability of the spring during operation, reduce the risk of abnormal noise from the suspension, and is suitable for assembly scenarios of various automotive rear suspension spring arms.

[0038] Example 2 Based on Embodiment 1, in this embodiment, the recessed area 4 has a circular groove structure with a through hole at its center; the elastic base 1 is an annular base, and the positioning rib is an annular positioning rib 2.

[0039] The design is simple, and the shapes of the recessed area 4, the elastic base 1, and the positioning ribs are reasonably designed, compatible with each other, and easy to assemble.

[0040] Alternatively, the shapes of the recessed area 4, the elastic base 1, and the positioning ribs can also adopt other suitable geometric shapes. For example, the recessed area 4 can adopt a square groove structure, and the elastic base 1 and the positioning ribs can adopt frame structures respectively.

[0041] Example 3 Based on Embodiment 2, in this embodiment, the inner wall of the annular positioning rib 2 is clearance-fitted with the outer wall of the elastic base 1, and the gap between the inner wall of the annular positioning rib 2 and the outer wall of the elastic base 1 is controlled at 0.5-1mm.

[0042] The scheme has a simple structure, and the distribution of the annular positioning rib 2 and the elastic base 1 is relatively reasonable. It can not only achieve radial limiting of the bottom of the spring 6 to prevent the spring 6 from shifting, but also avoid assembly difficulties caused by interference fit.

[0043] Preferably, in this embodiment, the gap between the inner wall of the annular positioning rib 2 and the outer wall of the elastic base 1 is controlled at 0.8 mm.

[0044] Example 4 Based on any one of Embodiments 2 to 3, in this embodiment, the inner wall of the annular positioning rib 2 is provided with an arc transition surface, and the arc transition surface extends inward from the top of the annular positioning rib 2 to the bottom of the recessed area 4.

[0045] The design is simple in structure, and the arc transition surface set on the inner wall of the annular positioning rib 2 is reasonable, which can reduce the contact stress between the elastic base 1 and the annular positioning rib 2 and prevent the elastic base from being damaged by local compression.

[0046] Preferably, in this embodiment, the radius of the aforementioned arc transition surface is 2mm.

[0047] Example 5 Based on the above embodiments, in this embodiment, a plurality of weight-reducing holes 5 are evenly spaced on the recessed region 4.

[0048] The solution has a simple structure. It is reasonable to set multiple weight-reducing holes 5 evenly at intervals in the recessed area 4 on the pallet body 3. This reduces the weight of the pallet without affecting the structural strength, which meets the requirements of automotive lightweighting and reduces costs.

[0049] Preferably, in this embodiment, the plurality of weight-reducing holes 5 are all round holes.

[0050] Alternatively, the aforementioned multiple weight-reducing holes 5 can also adopt other suitable geometries, such as square holes.

[0051] In addition, the aforementioned multiple weight-reducing holes 5 are evenly spaced along the circumference of the concave region 4.

[0052] Furthermore, the lower side of the aforementioned elastic base 1 is in contact with the upper side of the plurality of weight-reducing holes 5.

[0053] Example 6 Based on the above embodiments, in this embodiment, the pallet body 3 is formed by stamping high-strength steel and its surface is coated with an anti-rust coating.

[0054] The design has a simple structure, the tray body 3 is reasonably formed, and it is easy to process. In addition, it is more reasonable to spray a layer of anti-rust coating on the pallet body 3, which takes into account both structural strength and corrosion resistance, extends the service life of the pallet body 3, and reduces costs.

[0055] Preferably, in this embodiment, the above-mentioned anti-rust coating is preferably a zinc anti-rust coating, which takes into account both structural strength and corrosion resistance.

[0056] Example 7 Based on the above embodiments, this embodiment also provides a rear suspension spring arm structure, including a spring arm 7, a spring 6, and a spring tray as described above. The tray body 3 is fixedly installed on the spring arm 7. The spring 6 is distributed above the tray body 3, and its lower end extends into the recessed area 4 on the tray body 3 and into the annular limiting groove 8 on the elastic base 1.

[0057] During assembly, the tray body 3 has a concave structure as a whole, and the two sides are connected to the spring arm 7 by welding. The concave area 4 in the tray body 3 has an integrally formed upward protruding positioning rib in the middle, which, together with the annular limiting groove 8 on the elastic base 1, can not only limit the elastic base 1 and prevent the spring 6 from shifting, but also avoid assembly difficulties caused by interference fit. In addition, this embodiment also provides a rear suspension spring arm structure. This rear suspension spring arm structure is simple in structure and reasonable in design. By adapting the recessed body to the installation space and combining the central annular positioning rib, it can accurately fix the rubber at the bottom of the spring, improve the stability of the spring during operation, reduce the risk of abnormal noise from the suspension, and is suitable for assembly scenarios of various automotive rear suspension spring arms.

[0058] Preferably, in this embodiment, the spring 6 is distributed perpendicular to the tray body 3 and the spring arm 7.

[0059] Example 8 Based on embodiment 7, in this embodiment, the spring arm 7 includes two arm bodies 71, which are distributed opposite to each other and are fixedly connected on one side by a connecting plate. The two ends of the two arm bodies 71 are respectively provided with a pair of mounting holes 72. The tray body 3 is fixedly installed between the other sides of the two arm bodies 71.

[0060] The design is simple, with the spring arm 7 made of two arm bodies 71 welded together. The structure is reasonably designed and easy to assemble with the spring tray, which facilitates the stable assembly of the spring 6 later.

[0061] Example 9 Based on the above embodiments, such as Figures 5 to 6 As shown, this embodiment also provides a rear suspension system, including the rear suspension spring arm structure as described above.

[0062] This embodiment also provides a rear suspension system with a simple structure and reasonable design. The system adapts to the installation space by using a concave body and combines it with a central annular positioning rib to achieve precise fixation of the rubber at the bottom of the spring, thereby improving the stability of the spring during operation, reducing the risk of abnormal noise from the suspension, and is suitable for assembly scenarios of various automotive rear suspension spring arms.

[0063] Example 10 Based on the above embodiments, this embodiment also provides a car including the rear suspension system described above.

[0064] This embodiment also provides a car with a simple structure and reasonable design. By adapting the recessed body to the installation space and combining it with the central annular positioning rib, the bottom rubber of the spring is precisely fixed, which improves the stability of the spring during operation, reduces the risk of abnormal noise from the suspension, and is suitable for the assembly scenarios of rear suspension spring arms of various automobiles.

[0065] This utility model provides a spring tray, a rear suspension spring arm structure, a rear suspension system, and an automobile, the assembly principle of which is as follows: During assembly, first, place the elastic base 1 into the recessed area 4 of the tray body 3, so that the outer wall of the elastic base 1 fits against the inner wall of the recessed area 4, and the inner ring of the elastic base 1 is fitted into the annular positioning rib 2; then, fit the two sides of the tray body 3 against the surface of the spring arm 7 and weld the two sides together; finally, insert the lower end of the spring 6 into the annular limiting groove 8 on the elastic base 1 to complete the assembly.

[0066] The spring tray, rear suspension spring arm structure, rear suspension system, and automobile provided by this utility model have the following beneficial effects: 1. Fixed and stable: The central annular positioning rib forms a precise radial limit between the elastic bases, and combined with the fit of the inner wall of the concave area, it effectively prevents the spring from vibrating and shifting, and reduces the risk of abnormal noise from the suspension. 2. Reliable structure: The arc transition surface of the annular positioning rib reduces the contact stress between the rubber bases, and the anti-rust coating and high-strength steel material improve the service life of the pallet; 3. Lightweight design: The bottom weight-reducing holes reduce weight while ensuring strength, meeting the energy-saving requirements of automobiles.

[0067] Furthermore, the main innovations of this utility model regarding the spring tray, rear suspension spring arm structure, rear suspension system, and automobile are as follows: 1. Circular positioning rib design: A circular positioning rib with an upward protrusion integrally formed in the middle of the concave area of ​​the tray has an inner diameter that fits with the outer diameter of the rubber at the bottom of the spring to achieve precise radial positioning and prevent the spring from vibrating and shifting; and the height of the rib is less than or equal to the thickness of the rubber at the bottom of the spring to avoid interfering with the axial deformation of the spring.

[0068] 2. Detailed structural optimization: The inner wall of the annular positioning rib is provided with an arc transition surface to reduce the contact stress of the rubber at the bottom of the spring and prevent damage to the rubber; the edge of the tray is provided with a flange edge with mounting holes to facilitate stable connection with the rear suspension spring arm; the bottom surface of the recessed area is opened with weight reduction holes to balance lightweight and structural strength.

[0069] 3. Material and coating selection: High-strength steel is used for stamping to improve the structural load-bearing capacity; the surface is coated with an anti-rust coating to enhance corrosion resistance and extend the service life of the pallet. While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A spring tray, characterized in that, include: The tray body (3) and the elastic base (1) are provided. The tray body (3) is provided with a recessed area (4). The elastic base (1) is distributed in the recessed area (4) and is provided with an annular limiting groove (8) for limiting the lower end of the spring (6). The side wall of the recessed area (4) is provided with a positioning rib for positioning the elastic base (1).

2. The spring tray of claim 1, wherein, The recessed area (4) has a circular groove structure with a through hole at its center; the elastic base (1) is an annular seat and the positioning rib is an annular positioning rib (2).

3. The spring tray of claim 2, wherein, The inner wall of the annular positioning rib (2) is fitted with the outer wall of the elastic base (1) with a clearance, and the gap between the inner wall of the annular positioning rib (2) and the outer wall of the elastic base (1) is controlled at 0.5-1mm.

4. The spring tray of claim 2, wherein, The inner wall of the annular positioning rib (2) is provided with an arc transition surface, which extends from the top of the annular positioning rib (2) inward to the bottom of the recessed area (4).

5. The spring tray according to any one of claims 1-4, characterized in that, Multiple weight-reducing holes (5) are evenly spaced on the recessed area (4).

6. The spring tray of any one of claims 1-4, wherein, The pallet body (3) is formed by stamping high-strength steel and its surface is coated with an anti-rust coating.

7. A rear suspension spring arm structure characterized by, Includes a spring arm (7), a spring (6), and a spring tray as described in any one of claims 1-6, wherein the tray body (3) is fixedly mounted on the spring arm (7); the spring (6) is distributed above the tray body (3), with its lower end extending into the recessed area (4) on the tray body (3) and into the annular limiting groove (8) on the elastic base (1).

8. The rear suspension spring arm structure of claim 7, wherein The spring arm (7) includes two arm bodies (71), which are distributed opposite to each other and are fixedly connected on one side by a connecting plate. The two ends of the two arm bodies (71) are respectively provided with a pair of mounting holes (72); the tray body (3) is fixedly installed between the other sides of the two arm bodies (71).

9. A rear suspension system characterized by, Includes the rear suspension spring arm structure as described in any one of claims 7-8.

10. An automobile characterized by comprising: Includes the rear suspension system as described in claim 9.

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