Transverse plate spring supporting end pad

Abstract

The utility model provides a transversely-arranged plate spring supporting end pad, and relates to the technical field of transversely-arranged plate spring independent suspensions, the transversely-arranged plate spring supporting end pad comprises an upper framework assembly and a lower framework assembly, a spring body is connected between the upper framework assembly and the lower framework assembly, and rubber sleeves are arranged among the spring body, the outer surface of the upper framework assembly and the outer surface of the lower framework assembly in a wrapping mode. By introducing a combined structure of the rubber sleeve, the spring main body, the upper framework assembly and the lower framework assembly, the supporting end pad provided by the utility model has higher rigidity, so that the high-bearing-capacity requirement of an automobile with a large load capacity on the supporting end pad can be met; and the arrangement of the spring main body can meet higher rigidity, so that the bearing capacity is high, the response is fast, the work is stable, and the comfort of the vehicle is also greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of transverse leaf spring independent suspension technology, and more specifically, to a transverse leaf spring support end pad. Background Technology

[0002] In existing transverse leaf spring independent suspension systems, the two ends of the transverse leaf spring are respectively mounted on the lower control arm via support end pads. These support end pads are usually made of rubber, so this type of support end pad has the following limitations:

[0003] For vehicles with heavy loads, especially commercial vehicles with high rear axle loads, the rubber support end pads need to withstand very large loads. Ordinary rubber support end pads simply cannot meet this high load-bearing capacity within their lifespan. Therefore, we have made improvements and proposed a transverse leaf spring support end pad. Summary of the Invention

[0004] The purpose of this invention is to address the problem that the existing rubber structure support end pads need to withstand very large loads, and ordinary rubber structure support end pads cannot meet such high load-bearing requirements.

[0005] To achieve the above-mentioned objectives, this invention provides a transverse leaf spring support end pad to improve the aforementioned problems.

[0006] The application is as follows:

[0007] A transverse leaf spring support end pad includes an upper frame assembly and a lower frame assembly, with a spring body connected between the upper frame assembly and the lower frame assembly, and a rubber sleeve covering the outer surfaces of the spring body, the upper frame assembly, and the lower frame assembly.

[0008] As a preferred technical solution of this application, the top and bottom of the spring body are both provided with ground surfaces.

[0009] As a preferred technical solution of this application, the upper skeleton assembly includes an upper skeleton body that contacts the top ground surface of the spring body, an upper inclined boss is provided at the bottom of the upper skeleton body, the outer surface of the upper inclined boss is inserted into the inner wall of the spring body, and flanges are provided on both sides of the top of the upper skeleton body.

[0010] The outer surface of the upper inclined boss is sequentially provided with an upper limit plate and an upper limit boss. The side of the upper limit plate contacts the end of the spring body to limit the torsion of the spring body. The side away from the upper frame body contacts the outer surface of the spring body to limit the radial deformation of the spring body. The side of the upper limit boss close to the upper frame body contacts the outer surface of the spring body to limit the movement of the spring body in the vertical direction.

[0011] As a preferred technical solution of this application, the lower frame assembly includes a lower frame body that contacts the bottom ground surface of the spring body, and a lower inclined boss is provided on the top of the lower frame body, the outer surface of the lower inclined boss being inserted into the inner wall of the spring body.

[0012] As a preferred technical solution of this application, the outer surface of the lower inclined boss is sequentially provided with a lower limiting boss, a lower limiting plate, and an upper support seat. The side of the lower limiting plate contacts the end of the spring body to limit the torsion of the spring body. The side of the upper support seat away from the lower frame body contacts the outer surface of the spring body to limit the radial deformation of the spring body. The side of the lower limiting boss close to the lower frame body contacts the outer surface of the spring body to limit the movement of the spring body in the vertical direction.

[0013] As a preferred technical solution of this application, the lower frame body is provided with a threaded hole on the side away from the lower inclined boss, and a double-ended bolt is connected to the inner wall of the threaded hole.

[0014] As a preferred technical solution of this application, the side of the lower frame body away from the lower inclined surface boss is provided with a snap-fit ​​boss.

[0015] As a preferred technical solution of this application, the rubber sleeve includes an integrally formed upper skeleton closing boss, a spring closing boss, and a lower skeleton closing boss. The upper skeleton closing boss covers the outer surface of the upper skeleton assembly, the spring closing boss covers the outer surface of the spring body, and the lower skeleton closing boss covers the outer surface of the lower skeleton assembly.

[0016] As a preferred technical solution of this application, the outer surface of the spring-sealed boss is cylindrical.

[0017] As a preferred technical solution of this application, the outer surface of the spring-closed boss is spiral-shaped.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In the scheme of this application:

[0020] To address the issue that existing rubber structure support end pads need to withstand very large loads, and that ordinary rubber structure support end pads cannot meet such high load-bearing requirements, this application introduces a combined structure of a rubber sleeve, a spring body, an upper frame assembly, and a lower frame assembly. This results in a support end pad with higher rigidity, thus meeting the high load-bearing requirements of vehicles with large load capacities. Furthermore, the spring body design provides greater rigidity, resulting in not only strong load-bearing capacity but also fast response and smooth operation, significantly improving vehicle comfort. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the transverse leaf spring support end pad provided in this application;

[0022] Figure 2 A cross-sectional view of the transverse leaf spring support end pad provided in this application;

[0023] Figure 3 A schematic diagram of the structure of the spring-closed boss of the transverse leaf spring support end pad provided in this application when it is cylindrical;

[0024] Figure 4 A schematic diagram of the structure of the spring-closed boss of the transverse leaf spring support end pad provided in this application when it is spiral-shaped;

[0025] Figure 5 A schematic diagram of the spring body of the transverse leaf spring support end pad provided in this application;

[0026] Figure 6 A schematic diagram of the threaded hole of the transverse leaf spring support end pad provided in this application;

[0027] Figure 7 A schematic diagram of the upper skeleton assembly of the transverse leaf spring support end pad provided in this application;

[0028] Figure 8 This is a structural schematic diagram of the lower skeleton assembly of the transverse leaf spring support end pad provided in this application.

[0029] The image shows:

[0030] 1. Upper frame assembly; 101. Upper frame main body; 102. Upper limit boss; 103. Upper inclined boss; 104. Upper limit plate; 105. Upper support base;

[0031] 2. Rubber sleeve; 201. Upper skeleton closing boss; 202. Spring closing boss; 203. Lower skeleton closing boss;

[0032] 3. Spring body; 301, ground surface;

[0033] 4. Lower frame assembly; 401. Lower limit boss; 402. Lower inclined boss; 403. Lower limit plate; 404. Upper support base; 405. Threaded hole; 406. Lower frame body;

[0034] 5. Double-ended bolts;

[0035] 7. Snap-fit ​​boss. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0037] As described in the background section, in existing transverse leaf spring independent suspension systems, the two ends of the transverse leaf spring are respectively mounted on the lower control arm via support end pads. These support end pads are usually made of rubber, so such support end pads have the following limitations: for vehicles with heavy loads, especially commercial vehicles with heavy rear axle loads, the load that the rubber structure support end pads need to withstand is also very large. For ordinary rubber structure support end pads, their lifespan cannot meet such high load requirements.

[0038] To solve this technical problem, this utility model provides a transverse leaf spring support end pad, which is used to connect the end of the transverse leaf spring to the lower fork arm.

[0039] For details, please refer to Figures 1-8 The transverse leaf spring support end pad specifically includes:

[0040] The upper frame assembly 1 and the lower frame assembly 4 are connected by a spring body 3. A rubber sleeve 2 is provided between the outer surfaces of the spring body 3, the upper frame assembly 1 and the lower frame assembly 4.

[0041] The transverse leaf spring support end pad provided by this utility model, through the introduction of a combined structure of rubber sleeve 2, spring body 3, upper skeleton assembly 1 and lower skeleton assembly 4, enables the support end pad provided by this application to have higher rigidity, thereby meeting the high load-bearing requirements of automobiles with large load capacities for the support end pad; and the setting of spring body 3 can meet the greater rigidity, so not only is the load-bearing capacity strong, but the response is fast and the operation is stable, and the comfort of the vehicle is also greatly improved.

[0042] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0043] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] Example 1, please refer to Figures 1-8 A horizontal leaf spring support end pad includes an upper frame assembly 1 and a lower frame assembly 4. A spring body 3 is connected between the upper frame assembly 1 and the lower frame assembly 4. A rubber sleeve 2 is provided between the outer surfaces of the spring body 3, the upper frame assembly 1 and the lower frame assembly 4.

[0046] In the existing technology, the leaf spring end pad is a skeleton and rubber vulcanization, without the introduction of the spring body 3. This makes it unsuitable for vehicles with large load capacities. In addition, the mechanical stability of rubber is worse than that of metal, such as high temperature resistance, low temperature resistance, and easy aging. The stiffness is greatly affected by temperature. When designing transverse leaf spring vehicles with large load capacity, the stiffness requirement of the leaf spring end pad is very large. The design of the spring body 3 in this application can meet the high stiffness requirement. This not only has a strong load capacity, but also a fast response and smooth operation, which greatly improves the comfort of the vehicle.

[0047] This application, through the setting of rubber sleeve 2 and spring body 3, when the vehicle has a large load capacity, its working conditions are more severe than those of vehicles that pursue comfort. Under large displacement vibration, the rubber sleeve 2 and spring body 3 work together to have a significant vibration damping effect, fast load recovery, strong impact mitigation ability, strong moisture resistance and corrosion resistance, long service life, good stability and high safety. When the rubber sleeve 2 ages, it will not suddenly break under the action of spring body 3.

[0048] Furthermore, such as Figure 8 As shown, the top and bottom of the spring body 3 are provided with ground surfaces 301. The ground surfaces 301 enable the spring body 3 to be subjected to more vertical forces, providing support when subjected to force. At the same time, it increases the contact area between the spring body 3 and the upper frame assembly 1 and the lower frame assembly 4, providing a good sliding contact surface for the torsion of the spring body 3 and reducing the radial diameter increase deformation of the spring body 3.

[0049] Example 2 further optimizes the transverse leaf spring support end pad provided in Example 1, specifically, as follows: Figures 5-7As shown, the upper frame assembly 1 includes an upper frame body 101 that contacts the top ground surface 301 of the spring body 3. The bottom of the upper frame body 101 is provided with an upper inclined boss 103. The outer surface of the upper inclined boss 103 is inserted into the inner wall of the spring body 3. Both sides of the top of the upper frame body 101 are provided with flanges. The flanges can restrict the large range of left and right movement of the leaf spring and reduce the situation where the leaf spring slides out and separates from this application under severe working conditions. The function of the upper inclined boss 103 is to maintain the degree of freedom of the spring body 3 and reduce the situation where the spring body 3 slips internally.

[0050] The outer surface of the upper inclined boss 103 is sequentially provided with upper limit plates 104, 105 and upper limit boss 102. The side of the upper limit plate 104 contacts the end of the spring body 3 to limit the torsion of the spring body 3, which can reduce internal friction and increase service life. The side of 105 away from the upper frame body 101 contacts the outer surface of the spring body 3 to limit the radial deformation of the spring body 3. The setting of 105 also increases the contact area between the upper frame assembly 1 and the spring body 3. The side of the upper limit boss 102 close to the upper frame body 101 contacts the outer surface of the spring body 3 to limit the movement of the spring body 3 in the vertical direction, so that its deformation will not have too much difference with the rubber sleeve 2, reducing the possibility of the rubber sleeve 2 tearing. There is space between the upper limit boss 102 and the upper frame body 101 for the spring body 3 to pass through.

[0051] Example 3 further optimizes the transverse leaf spring support end pad provided in Example 1 or 2, specifically, as follows: Figure 5 and Figure 8 As shown, the lower frame assembly 4 includes a lower frame body 406 that contacts the bottom ground surface 301 of the spring body 3. The top of the lower frame body 406 is provided with a lower inclined boss 402. The outer surface of the lower inclined boss 402 is inserted into the inner wall of the spring body 3. The function of the lower inclined boss 402 is to maintain the degree of freedom of the spring body 3 and reduce the internal slippage of the spring body 3.

[0052] Furthermore, such as Figure 8 As shown, the outer surface of the lower inclined boss 402 is sequentially provided with a lower limiting boss 401, a lower limiting plate 403, and an upper support seat 404. The side of the lower limiting plate 403 contacts the end of the spring body 3 to limit the torsion of the spring body 3. The side of the upper support seat 404 away from the lower frame body 406 contacts the outer surface of the spring body 3 to limit the radial deformation of the spring body 3. The setting of the upper support seat 404 also increases the contact area between the lower frame assembly 4 and the spring body 3. The side of the lower limiting boss 401 close to the lower frame body 406 contacts the outer surface of the spring body 3 to limit the movement of the spring body 3 in the vertical direction, so that its deformation will not have too much difference with the rubber sleeve 2, reducing the possibility of the rubber sleeve 2 tearing.

[0053] Example 4 further optimizes the transverse leaf spring support end pad provided in Example 3, specifically, as follows: Figure 8 As shown, a threaded hole 405 is provided on the side of the lower frame body 406 away from the lower inclined boss 402. A double-ended bolt 5 is connected to the inner wall of the threaded hole 405. The double-ended bolt 5 is used to connect the present application to the lower fork arm, which not only restricts the slippage of the present application, but also facilitates disassembly and installation, improves the convenience of vehicle maintenance, and reduces the maintenance cost of the vehicle.

[0054] Example 5 further optimizes the transverse leaf spring support end pad provided in Example 3, specifically, as follows: Figure 4 As shown, a snap-fit ​​boss 7 is provided on the side of the lower frame body 406 away from the lower inclined boss 402. The snap-fit ​​boss 7 enables the snap-fit ​​between the lower frame assembly 4 and the lower fork arm, making the disassembly and assembly of this application more convenient.

[0055] Example 6 further optimizes the transverse leaf spring support end pad provided in the above embodiments, such as... Figure 3 As shown, the rubber sleeve 2 includes an integrally formed upper skeleton closing boss 201, spring closing boss 202, and lower skeleton closing boss 203. The upper skeleton closing boss 201 covers the outer surface of the upper skeleton assembly 1, the spring closing boss 202 covers the outer surface of the spring body 3, and the lower skeleton closing boss 203 covers the outer surface of the lower skeleton assembly 4. The function of the upper skeleton closing boss 201 and the lower skeleton closing boss 203 is to wrap the upper skeleton assembly 1 and the lower skeleton assembly 4, ensuring sufficient rigidity while also solving the problem of excessive noise generated when the leaf spring rubs against the metal skeleton.

[0056] Example 7 further optimizes the transverse leaf spring support end pad provided in Example 6, specifically, as follows: Figure 3 As shown, the outer surface of the spring-sealing boss 202 is cylindrical. The cylindrical spring-sealing boss 202 has a relatively simple outer surface structure, is easy to process and manufacture, and can reduce production costs. When covering the spring body 3, it can provide relatively uniform and stable constraints and protection, which is conducive to the stable operation of the spring body 3 inside it and maintain the stability of the overall structural performance.

[0057] Example 8 further optimizes the transverse leaf spring support end pad provided in Example 6, specifically, as follows: Figure 4 As shown, the outer surface of the spring-closed boss 202 is spiral-shaped. The spiral-shaped outer surface of the spring-closed boss 202 has a certain elastic deformation capacity and buffering performance. During vehicle vibration, it can better adapt to the expansion and contraction deformation of the spring body 3, further enhance the vibration damping and buffering effect, improve the impact resistance and stability of the overall structure, and also improve the aesthetics to a certain extent.

[0058] In use, the top of this application is inserted into the end of the leaf spring, and the bottom of this application is connected to the lower fork arm by the double-ended bolt 5 or the snap-fit ​​boss 7.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A transverse leaf spring support end pad, characterized in that, It includes an upper skeleton assembly (1) and a lower skeleton assembly (4), with a spring body (3) connected between the upper skeleton assembly (1) and the lower skeleton assembly (4), and a rubber sleeve (2) covering the outer surfaces of the spring body (3), the upper skeleton assembly (1) and the lower skeleton assembly (4).

2. The transverse leaf spring support end pad according to claim 1, characterized in that, The top and bottom of the spring body (3) are both provided with ground surfaces (301).

3. The transverse leaf spring support end pad according to claim 2, characterized in that, The upper skeleton assembly (1) includes an upper skeleton body (101) that contacts the top ground surface (301) of the spring body (3). The bottom of the upper skeleton body (101) is provided with an upper inclined boss (103). The outer surface of the upper inclined boss (103) is inserted into the inner wall of the spring body (3). Both sides of the top of the upper skeleton body (101) are provided with flanges. The outer surface of the upper inclined boss (103) is provided with upper limit plate (104), (105) and upper limit boss (102) in sequence. The side of the upper limit plate (104) contacts the end of the spring body (3) to limit the torsion of the spring body (3). The side of the (105) away from the upper frame body (101) contacts the outer surface of the spring body (3) to limit the radial deformation of the spring body (3). The side of the upper limit boss (102) close to the upper frame body (101) contacts the outer surface of the spring body (3) to limit the movement of the spring body (3) in the vertical direction.

4. The transverse leaf spring support end pad according to claim 2 or 3, characterized in that, The lower frame assembly (4) includes a lower frame body (406) that contacts the bottom ground surface (301) of the spring body (3). The lower frame body (406) has a lower inclined boss (402) on its top, and the outer surface of the lower inclined boss (402) is inserted into the inner wall of the spring body (3).

5. The transverse leaf spring support end pad according to claim 4, characterized in that, The outer surface of the lower inclined boss (402) is provided with a lower limiting boss (401), a lower limiting plate (403), and an upper support seat (404) in sequence. The side of the lower limiting plate (403) contacts the end of the spring body (3) to limit the torsion of the spring body (3). The side of the upper support seat (404) away from the lower frame body (406) contacts the outer surface of the spring body (3) to limit the radial deformation of the spring body (3). The side of the lower limiting boss (401) close to the lower frame body (406) contacts the outer surface of the spring body (3) to limit the movement of the spring body (3) in the vertical direction.

6. The transverse leaf spring support end pad according to claim 5, characterized in that, The lower frame body (406) has a threaded hole (405) on the side away from the lower inclined boss (402), and a double-ended bolt (5) is connected to the inner wall of the threaded hole (405).

7. The transverse leaf spring support end pad according to claim 5, characterized in that, The lower frame body (406) has a snap-fit ​​boss (7) on the side away from the lower inclined boss (402).

8. The transverse leaf spring support end pad according to any one of claims 1-7, characterized in that, The rubber sleeve (2) includes an integrally formed upper skeleton closing boss (201), a spring closing boss (202) and a lower skeleton closing boss (203). The upper skeleton closing boss (201) covers the outer surface of the upper skeleton assembly (1), the spring closing boss (202) covers the outer surface of the spring body (3), and the lower skeleton closing boss (203) covers the outer surface of the lower skeleton assembly (4).

9. The transverse leaf spring support end pad according to claim 8, characterized in that, The outer surface of the spring-closed boss (202) is cylindrical.

10. The transverse leaf spring support end pad according to claim 8, characterized in that, The outer surface of the spring-closed boss (202) is spiral-shaped.

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