A leaf spring support structure with a cushion block

Abstract

The utility model relates to a plate spring support structure with buffer block, include: plate spring subassembly, vehicle support, first connecting subassembly and second connecting subassembly, one end of plate spring subassembly is connected on vehicle support through first connecting subassembly, and the other end is connected on vehicle support through second connecting subassembly, axle, axle is located plate spring subassembly and vehicle support below, and plate spring subassembly supports on vehicle support and axle, be equipped with support seat on axle, buffer block, buffer block detachably install on one side of vehicle support close to axle, buffer block with support seat correspond setting, in the utility model, support seat can be with buffer block and abut, can avoid axle and vehicle support rigid collision, significantly reduced noise and vibration, improved the evenness and ride comfort of vehicle, with buffer block detachably install on vehicle support, make things convenient for the replacement of buffer block.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a leaf spring support structure with a buffer block. Background Technology

[0002] The leaf spring support structure is a key component of the vehicle suspension system, primarily used to connect the axle to the frame and to perform load transfer, shock absorption, and cushioning functions. A traditional leaf spring support structure typically includes a leaf spring assembly, a vehicle bracket, and connecting components. The two ends of the leaf spring assembly are connected to the vehicle bracket via connectors, while the axle is located below the leaf spring and supported by it.

[0003] In practical use, when a vehicle travels on bumpy roads or bears a heavy load, the axle will move upwards, approaching the vehicle frame. To prevent hard collisions, buffer blocks are usually installed on the vehicle frame to absorb impact energy. However, in existing technology, buffer blocks are often directly fixed to the vehicle frame, which makes them prone to excessive expansion or deformation under pressure, thus accelerating wear and shortening their service life. At the same time, the installation structure of the buffer blocks is relatively simple, making them inconvenient to disassemble and replace, increasing maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to provide a leaf spring support structure with a buffer block to solve the problems of easy damage and difficulty in replacement of the buffer block in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A leaf spring support structure with a buffer block includes: a leaf spring assembly, a vehicle bracket, a first connecting assembly, and a second connecting assembly. One end of the leaf spring assembly is connected to the vehicle bracket via the first connecting assembly, and the other end is connected to the vehicle bracket via the second connecting assembly. An axle is located below the leaf spring assembly and the vehicle bracket, and the leaf spring assembly is supported on the vehicle bracket and the axle. A support seat is provided on the axle. A buffer block is detachably installed on the side of the vehicle bracket near the axle, and the buffer block is correspondingly arranged with the support seat.

[0006] Based on the aforementioned technical means, by detachably installing the buffer block on the vehicle bracket and correspondingly setting it to the support seat on the axle, when the vehicle load increases or when driving on bumpy roads, the axle moves upward, and the support seat contacts and compresses the buffer block, thereby effectively absorbing impact energy, avoiding rigid collision between the axle and the vehicle bracket, significantly reducing noise and vibration, and improving the smoothness and ride comfort of the vehicle; since the buffer block is detachably installed on the side of the vehicle bracket near the axle, when the buffer block wears or ages due to long-term use, maintenance personnel can easily inspect, maintain or replace it without disassembling the complex leaf spring system or axle assembly.

[0007] In this invention, the buffer block is detachably installed on the side of the vehicle bracket near the axle and precisely corresponds to the support seat on the axle, ensuring that the buffer block can be uniformly compressed when under pressure, avoiding local stress concentration and early damage caused by off-center loading, and ensuring the stability and reliability of the buffering effect.

[0008] Furthermore, a support assembly is installed on the vehicle bracket, the support assembly is adapted to the buffer block, and the buffer block is installed on the support assembly.

[0009] According to the above technical means, the buffer block is installed on the vehicle bracket through the support seat assembly, and the support seat assembly is compatible with the buffer block, so that the buffer block can be installed on the vehicle bracket, which can increase the installation stability of the buffer block.

[0010] Furthermore, the support assembly includes a first support plate, which is generally basin-shaped; the top of the buffer block is installed inside the first support plate and is adapted to the inner wall of the first support plate.

[0011] According to the above technical means, the buffer block will expand in all directions during the compression process. Since the first support plate is in the shape of a basin, the top of the buffer block is installed in the first support plate and the inner wall of the first support plate is adapted to it. The first support plate can limit the expansion degree of the top of the buffer block, prevent the top of the buffer block from being damaged due to excessive expansion, and thus prevent the buffer block from being squeezed by other parts of the vehicle during the collision process, which would lead to other problems.

[0012] Furthermore, a flange structure is formed on the top of the buffer block, the flange structure is located on the periphery of the buffer block, and the flange structure is in contact with the inner wall of the first support plate.

[0013] According to the above technical means, the flange structure is attached to the inner wall of the first support plate, so that the flange structure only contacts the first support plate. This allows the buffer block to contact the flange structure during the compression and expansion process, which can reduce the friction caused by the compression and expansion of the buffer block and other parts of the vehicle, thereby reducing the service life of the buffer block.

[0014] Furthermore, a gap is provided between the flange structure and the buffer body of the buffer block.

[0015] Based on the above technical means, since there is a gap between the flange structure and the buffer body of the buffer block, the buffer body of the buffer block has expansion space during expansion and will not directly contact and squeeze the flange structure. Under the condition of achieving the same buffer block limit stroke corresponding to the limit force value, the effective diameter of the buffer block can be made smaller, making the starting segment of the limit curve of the buffer block smoother, and increasing the ride comfort and smoothness after the buffer block intervenes.

[0016] Furthermore, the support assembly also includes a second support plate, the first support plate being fixed to the second support plate, and the second support plate being detachably mounted on the vehicle bracket.

[0017] According to the above technical means, by setting a second support between the first support plate and the vehicle bracket, and fixing the first support plate to the second support buffer block, the buffer block can be detachably installed on the vehicle bracket through the second support plate. On the one hand, it facilitates the replacement of the buffer block. On the other hand, by installing the first support plate on the second support plate, the contact between the first support plate and other components on the vehicle bracket is reduced, thereby reducing the friction between the buffer block and other components.

[0018] Furthermore, the support assembly also includes bolts that can pass through the second support plate and mount the second support plate onto the vehicle bracket.

[0019] The above-mentioned technical means facilitate the disassembly of the second support plate, and thus facilitate the disassembly of the buffer block.

[0020] Furthermore, the bottom of the buffer block has anti-slip protrusions.

[0021] According to the above-mentioned technical means, the bottom of the buffer block has anti-slip protrusions, which can increase the friction between the buffer block and the component that squeezes the buffer block, thereby preventing slippage when squeezing the buffer block.

[0022] Furthermore, one end of the leaf spring assembly has a first lug hole, and the other end of the leaf spring has a second lug hole. The first lug hole is connected to the vehicle bracket through the first connecting assembly, and the second lug hole is connected to the vehicle bracket through the second connecting assembly.

[0023] According to the above-mentioned technical means, by forming a first lug hole and a second lug hole at both ends of the first leaf spring, when the wheel encounters a bump and bounces upward, the leaf spring assembly is compressed, the central part bends upward, and the two ends tend to open backward. When the wheel falls, the leaf spring assembly rebounds, and the two ends tend to close forward. The two ends of the leaf spring assembly can be connected to the vehicle bracket through the first lug hole and the second lug hole respectively, allowing the two ends of the leaf spring assembly to swing freely around the center of the first lug hole and the second lug hole respectively, thus perfectly adapting to the length change of the leaf spring assembly, enabling the leaf spring assembly to undergo smooth elastic deformation and absorb impact energy.

[0024] Furthermore, it also includes U-bolts, by which the leaf spring assembly is fixedly mounted on the axle.

[0025] According to the above technical means, the leaf spring assembly is fixedly installed on the axle by U-bolts. The U-bolts only rigidly fix the central part of the leaf spring assembly, while the two ends of the leaf spring assembly can bend and deform freely, ensuring that the leaf spring assembly can effectively exert its elastic deformation function under load and achieve buffering and shock absorption functions.

[0026] The beneficial effects of this utility model are: 1. By detachably installing the buffer block on the vehicle frame and setting it in correspondence with the support seat on the axle, when the vehicle load increases or when driving on bumpy roads, the axle moves upward, and the support seat contacts and compresses the buffer block, thereby effectively absorbing impact energy, avoiding rigid collision between the axle and the vehicle frame, significantly reducing noise and vibration, and improving the smoothness and ride comfort of the vehicle. 2. Since the buffer block is detachably installed on the side of the vehicle bracket near the axle, when the buffer block wears or ages due to long-term use, maintenance personnel can easily inspect, maintain or replace it without disassembling the complex leaf spring system or axle assembly.

[0027] 3. The buffer block is detachably installed on the side of the vehicle bracket near the axle and precisely corresponds to the support seat on the axle. This ensures that the buffer block can be compressed evenly when under pressure, avoiding local stress concentration and premature damage caused by off-center loading, and ensuring the stability and reliability of the buffering effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the usage state structure of this embodiment; Figure 2 This is a schematic diagram of the first-view structure in this embodiment; Figure 3 This is another perspective view of a partial structure in this embodiment; Figure 4This is a cross-sectional view of a partial structure in this embodiment from another perspective; Figure 5 This is a schematic diagram of the structure of part A in this embodiment. Wherein, 1-leaf spring assembly, 11-first lug hole, 12-second lug hole; 2-Vehicle bracket; 3-First connecting component; 4-Second connecting component; 5-Axle; 6-Support base; 7-Buffer block, 71-Flanged structure, 72-Buffer body, 73-Gap, 74-Anti-slip protrusion; 8-Support base assembly, 81-First support plate, 82-Second support plate, 83-Bolt; 9-U-bolt. Detailed Implementation

[0029] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0030] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] like Figure 1 and Figure 2 As shown, this embodiment proposes a leaf spring support structure with a buffer block 7, including: a leaf spring assembly 1, a vehicle bracket 2, a first connecting assembly 3 and a second connecting assembly 4. One end of the leaf spring assembly 1 is connected to the vehicle bracket 2 through the first connecting assembly 3, and the other end is connected to the vehicle bracket 2 through the second connecting assembly 4; an axle 5, which is located below the leaf spring assembly 1 and the vehicle bracket 2, and the leaf spring assembly 1 is supported on the vehicle bracket 2 and the axle 5; a support seat 6 is provided on the axle 5; and a buffer block 7, which is detachably installed on the side of the vehicle bracket 2 near the axle 5, and the buffer block 7 is correspondingly arranged with the support seat 6.

[0032] like Figure 1As shown in this embodiment, during use, due to vehicle vibration and road inclination, the wheels will cause the axle 5 to swing up and down relative to the vehicle support 2. In this embodiment, a buffer block 7 is detachably installed on the vehicle support 2, and a support seat 6 is installed at a corresponding position on the axle 5. When the axle 5 swings up and down, the buffer block 7 can abut against the support seat 6, thereby effectively absorbing impact energy, avoiding rigid collision between the axle 5 and the vehicle support 2, significantly reducing noise and vibration, and improving the smoothness and ride comfort of the vehicle.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, a support assembly 8 is installed on the vehicle bracket 2. The support assembly 8 is adapted to the buffer block 7, and the buffer block 7 is installed on the support assembly 8. The buffer block 7 is installed on the vehicle bracket 2 through the support assembly 8, and the support assembly 8 is adapted to the buffer block 7, so that the buffer block 7 can be installed on the vehicle bracket 2, which can increase the installation stability of the buffer block 7.

[0034] like Figure 3 and Figure 4 As shown in this embodiment, Figure 3 The plan view conceals parts of the structure of axle 5 and wheels. Figure 4 for Figure 3 A sectional view of section A.

[0035] like Figures 4-5 As shown, in this embodiment, the support assembly 8 includes a first support plate 81, which is generally basin-shaped. The top of the buffer block 7 is installed inside the first support plate 81 and is adapted to the inner wall of the first support plate 81. During the compression process, the buffer block 7 expands in all directions. Since the first support plate 81 is generally basin-shaped and the top of the buffer block 7 is installed inside the first support plate 81 and adapted to the inner wall of the first support plate 81, the first support plate 81 can limit the degree of expansion of the top of the buffer block 7, preventing the top of the buffer block 7 from being damaged due to excessive expansion. This also prevents the buffer block 7 from being squeezed by other parts of the vehicle during the collision process, thus preventing other problems caused by this.

[0036] like Figure 5 As shown, in this embodiment, a flange structure 71 is formed on the top of the buffer block 7. The flange structure 71 is located on the periphery of the buffer block 7 and is in contact with the inner wall of the first support plate 81. The flange structure 71 is in contact with the inner wall of the first support plate 81, so that the flange structure 71 only contacts the first support plate 81. This allows the buffer block 7 to contact the flange structure 71 during the compression and expansion process, which can reduce the friction caused by the compression of the buffer block 7 with other parts of the vehicle, thereby reducing the service life of the buffer block 7.

[0037] like Figure 5 As shown, in this embodiment, a gap 73 is provided between the flange structure 71 and the buffer body 72 of the buffer block 7. Because there is a gap 73 between the flange structure 71 and the buffer body 72 of the buffer block 7, the buffer body 72 of the buffer block 7 has expansion space during expansion and will not directly contact and squeeze the flange structure 71. Under the condition of achieving the same limiting force value corresponding to the limiting stroke of the buffer block 7, the effective diameter of the buffer block 7 can be made smaller, making the starting segment of the limiting curve of the buffer block 7 smoother, and increasing the ride comfort and smoothness after the buffer block 7 intervenes.

[0038] like Figure 5 As shown, in this embodiment, the support assembly 8 further includes a second support plate 82. The first support plate 81 is fixed on the second support plate 82, and the second support plate 82 is detachably mounted on the vehicle bracket 2. By setting the second support between the first support plate 81 and the vehicle bracket 2, and by fixing the first support plate 81 to the second support buffer block 7, which can be detachably mounted on the vehicle bracket 2 via the second support plate 82, it is convenient to replace the buffer block 7. On the other hand, mounting the first support plate 81 on the second support plate 82 reduces the contact between the first support plate 81 and other components on the vehicle bracket 2, thereby reducing the friction between the buffer block 7 and other components.

[0039] In this preferred embodiment, the first support plate 81 and the second support plate 82 are welded together.

[0040] like Figure 5 As shown, the support assembly 8 also includes a bolt 83 that passes through the second support plate 82 and mounts the second support plate 82 onto the vehicle bracket 2. This facilitates the removal of the second support plate 82, the first support plate 81, and the replacement block mounted on the first support plate 81 from the vehicle bracket 2. like Figure 5 As shown, in this embodiment, the bottom of the buffer block 7 has anti-slip protrusions 74. The anti-slip protrusions 74 on the bottom of the buffer block 7 can increase the friction between the buffer block 7 and the component that squeezes the buffer block 7, thereby preventing slippage when squeezing the buffer block 7.

[0041] like Figure 1 and Figure 2 As shown, in this embodiment, a first ear hole 11 is formed at one end of the leaf spring assembly 1, and a second ear hole 12 is formed at the other end of the leaf spring assembly 1. The first ear hole 11 is connected to the vehicle bracket 2 through the first connecting assembly 3, and the second ear hole 12 is connected to the vehicle bracket 2 through the second connecting assembly 4.

[0042] like Figure 1 and Figure 2As shown, in this embodiment, by forming a first lug hole 11 and a second lug hole 12 at both ends of the leaf spring assembly 1, when the wheel encounters a bump and bounces upward, the leaf spring assembly 1 is compressed, the central part bends upward, and the two ends tend to open backward. When the wheel falls, the leaf spring assembly 1 rebounds, and the two ends tend to close forward. The two ends of the leaf spring assembly 1 can be connected to the vehicle bracket 2 through the first lug hole 11 and the second lug hole 12 respectively, allowing the two ends of the leaf spring assembly 1 to swing freely around the center of the first lug hole 11 and the second lug hole 12 respectively, thus perfectly adapting to the change in the length of the leaf spring assembly 1, enabling the leaf spring assembly 1 to undergo smooth elastic deformation and absorb impact energy.

[0043] like Figure 1 and Figure 2 As shown, this embodiment also includes a U-bolt 9, and the leaf spring assembly 1 is fixedly installed on the axle 5 by the U-bolt 9. The leaf spring assembly 1 is fixedly installed on the axle 5 by the U-bolt. The U-bolt only rigidly fixes the central part of the leaf spring assembly 1, while the two ends of the leaf spring assembly 1 can be bent and deformed freely, ensuring that the leaf spring assembly 1 can effectively exert its elastic deformation function under load, and realize the buffering and shock absorption function.

[0044] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A leaf spring support structure with a buffer block, characterized in that, include: The leaf spring assembly (1), the vehicle bracket (2), the first connecting assembly (3) and the second connecting assembly (4) are provided. One end of the leaf spring assembly (1) is connected to the vehicle bracket (2) through the first connecting assembly (3), and the other end is connected to the vehicle bracket (2) through the second connecting assembly (4). The axle (5) is located below the leaf spring assembly (1) and the vehicle bracket (2), and the leaf spring assembly (1) is supported on the vehicle bracket (2) and the axle (5); the axle (5) is provided with a support seat (6). A buffer block (7) is detachably mounted on the side of the vehicle bracket (2) near the axle (5), and the buffer block (7) is correspondingly arranged with the support seat (6).

2. The leaf spring support structure with a buffer block according to claim 1, characterized in that, A support assembly (8) is installed on the vehicle bracket (2), the support assembly (8) is adapted to the buffer block (7), and the buffer block (7) is installed on the support assembly (8).

3. The leaf spring support structure with a buffer block according to claim 2, characterized in that, The support assembly (8) includes a first support plate (81), which is generally in the shape of a basin. The top of the buffer block (7) is installed inside the first support plate (81) and is adapted to the inner wall of the first support plate (81).

4. The leaf spring support structure with a buffer block according to claim 3, characterized in that, The top of the buffer block (7) has a flange structure (71), which is located on the periphery of the buffer block (7) and is in contact with the inner wall of the first support plate (81).

5. A leaf spring support structure with a buffer block according to claim 4, characterized in that, A gap (73) is provided between the flange structure (71) and the buffer body (72) of the buffer block (7).

6. A leaf spring support structure with a buffer block according to claim 3, characterized in that, The support assembly (8) further includes a second support plate (82), the first support plate (81) is fixed on the second support plate (82), and the second support plate (82) is detachably mounted on the vehicle bracket (2).

7. A leaf spring support structure with a buffer block according to claim 6, characterized in that, The support assembly (8) also includes a bolt (83) that can pass through the second support plate (82) and mount the second support plate (82) onto the vehicle bracket (2).

8. A leaf spring support structure with a buffer block according to claim 1, characterized in that, The bottom of the buffer block (7) has anti-slip protrusions (74).

9. A leaf spring support structure with a buffer block according to claim 1, characterized in that, One end of the leaf spring assembly (1) has a first ear hole (11), and the other end of the leaf spring has a second ear hole (12). The first ear hole (11) is connected to the vehicle bracket (2) through the first connecting assembly (3), and the second ear hole (12) is connected to the vehicle bracket (2) through the second connecting assembly (4).

10. A leaf spring support structure with a buffer block according to claim 1, characterized in that, It also includes U-bolts (9), the leaf spring assembly (1) being fixedly mounted on the axle (5) by the U-bolts (9).

Images