An air spring tray and an air spring assembly

Abstract

This application relates to the technical field of air springs, and particularly to an air spring tray and an air spring assembly. The air spring tray includes a tray body, a tray flange, and a protective structure installation part. Among them, the tray flange is connected to the tray body, and the diameter of the tray flange is greater than the diameter of the tray body; the protective structure installation part is located at one end of the tray body away from the tray flange and is used for the installation of the protective structure. The embodiments of this application provide an air spring tray and an air spring assembly to solve the problems in the related art that when the air spring tray is welded to the shock absorber, it is easy to weld the protective tooling structure to the tray, or there are problems such as poor fixation and inability to ensure that all four sides of the tray are protected.

Description

Technical Field

[0001] This application relates to the technical field of air springs, and particularly to an air spring tray and an air spring assembly. Background Art

[0002] An air spring is a new type of elastic element for automotive suspensions. Its excellent vibration damping performance and controllability are favored by various automobile manufacturers. Its main working principle is to change the cross-sectional area of the piston or the volume of the air chamber to change the stiffness of the air spring, thereby changing the handling stability and ride comfort of the vehicle.

[0003] The sealing performance of the air spring has a decisive impact on the service performance and safety of the air spring. The existing solutions usually complete the assembly of the air spring assembly by welding the air spring tray to the shock absorber and then installing the air spring piston on the air spring tray and the shock absorber.

[0004] However, when the existing air spring tray is welded to the shock absorber, that is, the upper weld of the air spring tray and the main cylinder of the shock absorber, if there is no protective tooling structure, welding slag is likely to splash into the mating area between the air spring piston and the air spring tray, resulting in a decrease in the sealing performance between the air spring piston and the air spring tray and affecting the sealing effect; and if the protective tooling structure is directly set on the air spring tray, it is easy to weld the protective tooling structure to the tray, or there are problems such as poor fixation and inability to ensure that the entire periphery of the tray is protected. Summary of the Invention

[0005] The embodiments of this application provide an air spring tray and an air spring assembly to solve the problems in the related art that when the air spring tray is welded to the shock absorber, it is easy to weld the protective tooling structure to the tray, or there are problems such as poor fixation and inability to ensure that the entire periphery of the tray is protected.

[0006] In a first aspect, the embodiments of this application provide an air spring tray, which includes:

[0007] A tray body;

[0008] A tray flange, which is connected to the tray body, and the diameter of the tray flange is greater than the diameter of the tray body;

[0009] A protective structure installation part, which is located at one end of the tray body away from the tray flange and is used for the installation of the protective structure.

[0010] In some embodiments, chamfer structures are respectively arranged at both ends of the tray body along its axial direction.

[0011] In some embodiments, the protective structure installation part is arranged along the circumferential direction of the tray body.

[0012] In some embodiments, the protective structure mounting portion has a limiting surface for limiting the protective structure. The limiting surface is located on the outer wall of the tray body, and the end of the limiting surface far from the tray flange is closer to the inner wall of the tray body than the end of the limiting surface close to the tray flange.

[0013] In some embodiments, an inner sealing structure is provided on the outer wall of the tray body, and an outer sealing structure is provided on the inner wall of the tray body.

[0014] In some embodiments, the inner sealing structure uses a sealing ring, and there is one or more sealing rings;

[0015] An outer groove is provided in the circumferential direction of the tray body, and the sealing ring is provided on the outer groove.

[0016] In some embodiments, it further includes:

[0017] A bearing, which is sleeved on the tray body and contacts the tray flange.

[0018] In a second aspect, an embodiment of the present application provides an air spring assembly, which includes:

[0019] A shock absorber;

[0020] An air spring tray as described in any one of the above, which is sleeved on the shock absorber and welded to the shock absorber.

[0021] In some embodiments, the shock absorber is connected to the inner sealing structure on the tray body.

[0022] In some embodiments, it further includes:

[0023] An air spring piston, which is sleeved on the tray body of the air spring tray and contacts the bearing on the tray body.

[0024] The beneficial effects brought by the technical solution provided by the present application include:

[0025] The embodiment of the present application provides an air spring tray and an air spring assembly. Since the diameter of the end provided with the tray flange is larger than the diameter of the tray body, the welding slag during welding cannot cross the side wall of the tray body with a larger diameter and will not splash onto the protective area of the tray body;

[0026] In the embodiment of the present application, a protective structure installation part is provided at one end of the tray body away from the tray flange, so that the protective tooling structure has an installation position. When it is necessary to weld the air spring tray and the shock absorber together, the protective tooling structure is installed on the protective structure installation part, so as to protect the circumferential direction of the tray body, which is convenient for fixing and will not affect the subsequent sealing performance between the tray side wall and the air spring piston, nor will the protective tooling structure be welded to the shock absorber. Therefore, it can solve the problems in the related art that when the air spring tray is welded to the shock absorber, the protective tooling structure is easily welded to the tray, or it is difficult to fix and it cannot ensure that the entire perimeter of the tray is protected. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Structural schematic diagram of the air spring tray provided by the embodiment of the present application;

[0029] Figure 2 is Figure 1 Cross-sectional view taken along line A-A in;

[0030] Figure 3 Installation schematic diagram of the protective structure provided by the embodiment of the present application;

[0031] Figure 4 Schematic diagram of welding the air spring tray and the shock absorber provided by the embodiment of the present application;

[0032] Figure 5 is Figure 4 Enlarged view at B in;

[0033] Figure 6 Structural schematic diagram of the air spring assembly provided by the embodiment of the present application;

[0034] Figure 7 is Figure 6 Enlarged view at C in.

[0035] In the figure: 1. Tray body; 2. Tray flange; 3. Protective structure installation part; 4. Bearing; 5. Outer sealing structure; 6. Inner sealing structure; 7. Chamfer structure; 8. Protective structure; 81. Clamping edge; 82. Protective part; 9. Shock absorber; 10. Air spring piston; 11. First weld seam; 12. Second weld seam; 13. Protective area. Detailed Embodiments

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the scope of protection of this application.

[0037] The embodiment of this application provides an air spring tray, which can solve the problems in the related art that when the air spring tray is welded to the shock absorber, the protective tooling structure is easily welded to the tray, or it is difficult to fix and it cannot ensure that the entire periphery of the tray is protected.

[0038] See Figures 1 to 3 As shown, the embodiment of this application provides an air spring tray, which includes a tray body 1, a tray flange 2, and a protective structure mounting portion 3. The tray flange 2 is connected to the tray body 1, and the diameter of the tray flange 2 is larger than the diameter of the tray body 1.

[0039] Specifically, the tray flange 2 with a larger diameter can block the tray body 1 with a smaller diameter in the circumferential direction. When the tray flange 2 is welded to the shock absorber 9, the welding slag cannot cross the tray flange 2 and splash onto the protected area 13 of the tray body 1.

[0040] Furthermore, the protective structure mounting portion 3 is located at one end of the tray body 1 away from the tray flange 2. Since there is no protective structure at the end of the tray body 1 away from the tray flange 2, when welding this side of the tray body 1 to the shock absorber 9, a protective structure 8 needs to be sleeved on the tray body 1 to prevent the welding slag generated during welding from splashing and solidifying on the circumferential protected area 13 of the tray body 1, which affects the subsequent sealing performance between the air spring piston 10 and the tray body 1. The protective structure mounting portion 3 is used for the installation of the protective structure 8.

[0041] Moreover, since the protective structure 8 has a dedicated mounting portion, the protective structure can be directly limited on the protective structure mounting portion 3 without additional fixation, and the situation where the protective structure 8 is welded to the shock absorber 9 will not occur.

[0042] It should be noted that the above-mentioned protected area 13 is the entire outer sidewall of the air spring tray.

[0043] The embodiment of this application provides an air spring tray and an air spring assembly. Since the diameter of the end with the tray flange 2 is larger than the diameter of the tray body 1, it can prevent the welding slag during welding from crossing the sidewall of the tray body 1 with a larger diameter and splashing onto the protected area 13 of the tray body 1.

[0044] In the embodiment of the present application, a protective structure mounting portion 3 is provided at one end of the tray body 1 away from the tray flange 2, so that the protective structure 8 has an installation position. When it is necessary to weld the air spring tray and the shock absorber 9 together, the protective structure 8 is installed on the protective structure mounting portion 3, so that the circumferential direction of the tray body 1 can be protected, which is convenient for fixing and will not affect the subsequent sealing performance between the tray side wall and the air spring piston 10, nor will the situation that the protective structure 8 is welded to the shock absorber 9 occur. Therefore, it can solve the problems in the related art that when the air spring tray is welded to the shock absorber, the protective structure 8 is easily welded to the tray, or it is difficult to fix and it cannot ensure that the entire circumference of the tray is protected.

[0045] Specifically, since there is a weld seam between the air spring tray and the shock absorber 9, if the protective structure 8 is directly installed at one end of the tray body 1 away from the tray flange 2, it is very easy to weld the protective structure 8 to the tray body 1 and the shock absorber 9, rendering the air spring tray and the shock absorber scrapped. If the protective structure 8 is directly placed on the circumference of the air spring tray, on the one hand, it is difficult to fix and alignment is required, or additional tooling for fixing the protective structure 8 needs to be added. On the other hand, it is impossible to ensure full circumferential protection.

[0046] In some alternative embodiments, as shown in Figure 1 and Figure 2 , the protective structure mounting portion 3 is located on the tray body 1. Specifically, the protective structure mounting portion 3 is arranged along the circumference of the tray body 1;

[0047] In one embodiment, the protective structure mounting portion 3 is located at one end of the tray body 1 away from the tray flange 2, and the protective structure mounting portion 3 includes a limiting surface for limiting the protective structure 8:

[0048] Specifically, the limiting surface is located on the outer wall of the tray body 1, and the end of the limiting surface away from the tray flange 2 is closer to the inner wall of the tray body 1 than the end of the limiting surface close to the tray flange 2. As shown in combination with Figure 2 , the protective structure mounting portion 3 is in a frustum shape, and the limiting surface is the side wall of the frustum;

[0049] As shown in combination with Figure 3 , the protective structure 8 is a cylindrical structure, which includes a protective portion 82 and a clamping edge 81. The diameter of the clamping edge 81 is smaller than the diameter of the protective portion 82. Since the diameter of the clamping edge 81 is small, it cannot move further towards the side where the tray flange 2 is located after reaching the limiting surface. Therefore, the clamping edge 81 is clamped on the limiting surface, that is, as shown in Figure 3 , and the protective portion 82 can wrap the side wall of the air spring tray, so that the welding slag generated during welding will not splash onto the protected area 13 of the side wall of the air spring tray;

[0050] It should be noted that Figure 3As one embodiment of the protective structure 8, its length is not longer than that of the tray body 1;

[0051] Optionally, the length of the protective part 82 is equal to that of the tray body 1. When the protective structure 8 is installed on the air spring tray, the clamping edge 81 is clamped on the protective structure installation part 3, and the bottom end of the protective part 82 is clamped on the tray flange 2.

[0052] Optionally, the length of the protective part 82 is equal to that of the air spring tray, and the diameter of the protective part 82 is exactly equal to that of the tray flange 2. When the protective structure 8 is installed on the air spring tray, the clamping edge 81 is clamped on the protective structure installation part 3, and the bottom end of the protective part 82 is just parallel to the bottom end of the tray flange 2. After the first weld seam 11 is welded, continue to weld the second weld seam 12, and then remove the protective structure 8; in this way, the protective area 13 around the tray body 1 can be protected when welding the first weld seam 11 and the second weld seam 12, greatly increasing the safety of the protective area 13.

[0053] Preferably, the length of the protective structure 8 is equal to that of the air spring tray to better protect the side wall of the entire air spring tray.

[0054] Optionally, the diameter of the protective part 82 is not less than that of the tray body 1. The diameter of the protective part 82 in the protective structure 8 can also be larger, such as larger than that of the tray flange 2. At the same time, the length of the protective structure 8 is not less than the diameter of the air spring tray, so that the protective part 82 covers the tray flange 2 and the tray flange 2 is also protected; after the first weld seam 11 is welded, remove the protective structure 8 from the end of the first weld seam 11 far away from the tray flange 2, and continue to weld the second weld seam 12.

[0055] In some alternative embodiments, refer to Figure 1 and Figure 2 As shown, chamfer structures 7 are respectively arranged at both ends of the tray body 1 along its axial direction. Specifically, the chamfer structures 7 are located on the inner wall of the tray body 1, and the chamfer structures 7 increase the contact area of the weld solder with the shock absorber 9 and the air spring tray;

[0056] Optionally, the chamfer structures 7 are arranged at intervals in the circumferential direction of the tray body 1 to increase the area of the solder in contact with the shock absorber 9 and the air spring tray;

[0057] Preferably, the chamfer structures 7 are continuously arranged in the circumferential direction of the inner wall of the tray body 1. When the air spring tray is welded to the shock absorber 9, refer to Figure 4 and Figure 5 As shown, a part of the solder will enter the chamfer structures 7 to increase the contact area and strengthen the welding strength and sealing strength.

[0058] Specifically refer to Figure 4 andFigure 5 As shown, when welding the air spring tray to the shock absorber 9, both ends of the air spring tray are welded, namely the first weld seam 11 and the second weld seam 12. At the same time, combined with Figure 1 and Figure 2 As shown, chamfer structures 7 are provided on the inner walls of the upper and lower ends of the air spring tray, which can ensure the sealing and welding strength between the air spring tray and the shock absorber 9.

[0059] Specifically, the chamfer structure 7 improves the structural design of the weld position. By setting the chamfer structure 7, the weld seam changes from the original fillet weld to fillet weld + plug weld, increasing the contact area between the solder and the shock absorber 9 and the air spring tray, ensuring the weld strength and welding seal quality between the air spring tray and the shock absorber 9, and reducing the risk of weld leakage.

[0060] In some alternative embodiments, referring to Figures 1 to 3 As shown, an inner sealing structure 6 is provided on the outer wall of the tray body 1 for sealing between the inner wall of the air spring tray and the shock absorber 9;

[0061] Specifically, the inner sealing structure 6 solves the problems of over-reliance on welding seal quality between the current air spring tray and the shock absorber 9, low product qualification rate, and the risk of air leakage between the after-sales tray and the shock absorber master cylinder.

[0062] Preferably, the inner sealing structure 6 uses a sealing ring. Combined with Figure 1 and Figure 2 As shown, an installation groove is provided along the circumferential direction of the inner wall of the tray body 1, and the sealing ring is embedded in the installation groove;

[0063] Optionally, there is one or more sealing rings, and they are arranged at intervals along the axial direction of the tray body 1 to achieve the function of internal sealing. In one embodiment, combined with Figure 2 As shown, there are two sealing rings, and they are arranged at intervals along the axial direction of the tray body 1.

[0064] Furthermore, an outer sealing structure 5 is provided on the inner wall of the tray body 1, and the outer sealing structure 5 is used for sealing between the outer wall of the tray body 1 and the air spring piston 10.

[0065] Preferably, the outer sealing structure 5 uses a sealing ring. Combined with Figure 1 and Figure 2 As shown, an installation groove is provided along the circumferential direction of the outer wall of the tray body 1, and the sealing ring is embedded in the installation groove;

[0066] Optionally, similar to the inner sealing structure 6, the sealing ring used in the outer sealing structure 5 has one or more. When there are multiple sealing rings, the multiple sealing rings are arranged at intervals along the axial direction of the tray body 1. Combined with Figure 2As shown, in this embodiment, the external sealing structure 5 is provided with an implementation manner of two sealing rings, which can be selected according to the usage requirements in actual use.

[0067] Preferably, the sealing rings in the inner sealing structure 6 and the external sealing structure 5 are not on the same horizontal plane. As shown in Figure 1 and Figure 2 shown, the sealing rings in the inner sealing structure 6 and the external sealing structure 5 are arranged in a staggered manner, so that a certain part of the side wall of the tray body 1 will not be too thin, affecting its strength.

[0068] In addition, it should be noted that whether it is the sealing ring in the inner sealing structure 6 or the external sealing structure 5, when it is clamped in the installation groove on the tray body 1, the sealing ring protrudes from the inner wall or outer wall of the tray body 1. When the air spring tray is assembled to the shock absorber 9 and the air spring piston 10, an interference fit and sealing effect can be achieved through extrusion with the shock absorber 9 and the air spring piston 10.

[0069] In addition, there is an interference fit between the sealing ring and the installation groove. When the air spring piston 10 is assembled to the air spring tray, the sealing ring in the external sealing structure 5 also has an interference fit with the air spring piston 10.

[0070] In some alternative embodiments, as shown in Figures 1 to 3 shown, the air spring tray provided in the embodiment of the present application further includes a bearing 4. Specifically, the bearing 4 is sleeved on the tray body 1 and is connected to the tray flange 2.

[0071] As shown in Figure 3 shown, the diameter of the bearing 4 is smaller than the diameter of the tray flange 2, and it can be limited to the upper surface of the tray flange 2 (i.e., the side of the tray flange 2 facing the tray body 1), and the inner diameter of the bearing 4 is not greater than the outer diameter of the tray body 1 to prevent it from detaching from the tray body 1.

[0072] Preferably, there is an interference fit between the bearing 4 and the tray body 1. When the air spring piston 10 is assembled to the air spring tray, the bearing 4 has an interference fit with the air spring piston 10.

[0073] Specifically, in the existing solutions, there is generally hard friction between the air spring piston 10 and the air spring tray, with a large frictional force, a risk of abnormal noise, and it will affect the steering feel. After a long time of durability, it will cause problems such as wear and abnormal noise. In the present application, a bearing 4 is added to the air spring tray, enabling the air spring piston 10 and the air spring tray to achieve relative rotation through the bearing 4, changing the mutual movement between the two from the original hard friction to sliding, avoiding the problem of abnormal noise, ensuring the steering feel, and having better durability performance at the same time.

[0074] As shown in Figures 4 to 7 shown, the present application also provides an air spring assembly, which includes a shock absorber 9 and the above-mentioned air spring tray. Specifically, as shown in Figure 4and Figure 5 As shown, the air spring tray is sleeved on the shock absorber 9, and the upper and lower ends of the air spring tray are respectively welded to the shock absorber 9 to form a first weld seam 11 and a second weld seam 12. Specifically, the weld seams at the upper and lower ends can ensure the welding strength between the air spring tray and the shock absorber 9, and at the same time can also prevent the air in the air spring assembly from leaking through the gap between the air spring tray and the shock absorber 9.

[0075] Specifically, since only relying on the weld structure seal has relatively high requirements for the quality of the weld seam and poor product consistency, the air spring tray provided in the embodiment of the present application further has an inner seal structure 6, see Figure 6 and Figure 7 As shown, since the inner seal structure 6 is provided in the air spring tray, the inner seal structure 6 is in contact with the shock absorber 9, and the inner seal structure 6 is in interference fit with the shock absorber 9 to ensure the sealing performance between the tray body 1 and the shock absorber 9 and prevent air leakage in the air spring assembly.

[0076] In some alternative embodiments, see Figure 6 and Figure 7 As shown, the air spring assembly further includes an air spring piston 10. Specifically, the air spring tray is installed between the shock absorber 9 and the air spring piston 10, and the air spring piston 10 is in interference fit with the outer seal structure 5 and the bearing 4 on the air spring tray. On the one hand, the seal is achieved through the outer seal structure 5 on the air spring tray, and on the other hand, through the bearing 4, it is avoided that abnormal noise is generated due to hard friction between the bottom of the air spring piston 10 and the air spring tray.

[0077] The air spring tray and the air spring assembly provided in the embodiment of the present application have the following advantages:

[0078] 1. By providing a chamfer structure 7, the weld seam is changed from the original fillet weld to fillet weld + plug weld, increasing the contact area between the solder and the shock absorber 9 and the air spring tray, ensuring the weld strength and welding seal quality between the air spring tray and the shock absorber 9, and reducing the risk of weld seam air leakage.

[0079] 2. Design a protective structure installation part 3 on the tray body 1 to prevent the welding slag of the upper end weld seam from splashing into the protection area 13 between the air spring piston 10 and the air spring tray, preventing air leakage after sales;

[0080] 3. Inner seal structure 6 and outer seal structure 5 are respectively provided on the inner wall and outer wall of the air spring tray. Through the inner and outer double seal structures, the sealing performance between the air spring tray and the cylinder body of the shock absorber 9 and between the air spring tray and the air spring piston 10 is ensured, avoiding air leakage;

[0081] 4. Add a bearing 4 to the air spring tray, changing the hard friction between the air spring piston 10 and the air spring tray to sliding, ensuring the steering feel, and at the same time having better durability and being able to avoid loosening after durability.

[0082] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0083] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0084] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. An air spring tray, characterized in that, It is used for welded connection with a shock absorber (9), and there is a weld seam between the air spring tray and the shock absorber (9); the air spring tray includes: A tray body (1); chamfer structures (7) are respectively arranged at both ends of the tray body (1) along its axial direction; A tray flange (2), which is connected to the tray body (1), and the diameter of the tray flange (2) is larger than the diameter of the tray body (1); A protective structure installation part (3), which is located at one end of the tray body (1) away from the tray flange (2) and is used for the installation of a protective structure (8), and is arranged along the circumferential direction of the tray body (1); The protective structure installation part (3) has a limiting surface for limiting the protective structure (8), the limiting surface is located on the outer wall of the tray body (1), and the end of the limiting surface away from the tray flange (2) is closer to the inner wall of the tray body (1) than the end of the limiting surface close to the tray flange (2); The protective structure (8) includes a protective part (82) and a clamping edge (81), the diameter of the clamping edge (81) is smaller than the diameter of the protective part (82), so that the clamping edge (81) is clamped on the limiting surface, and the protective part (82) is used for wrapping the side wall of the air spring tray; the length of the protective part (82) is equal to the length of the air spring tray, and the diameter of the protective part (82) is just equal to the diameter of the tray flange (2); It further includes: A bearing (4), which is sleeved on the tray body (1) and is in contact with the tray flange (2), and the bearing (4) is used for the relative rotation of the air spring piston (10) and the air spring tray.

2. The air spring tray according to claim 1, characterized in that: An inner sealing structure (6) is arranged on the outer wall of the tray body (1), and an outer sealing structure (5) is arranged on the inner wall of the tray body (1).

3. The air spring tray according to claim 2, characterized in that: The inner sealing structure (6) uses a sealing ring, and there is one or more sealing rings; An outer groove is arranged on the circumference of the tray body (1), and the sealing ring is arranged on the outer groove.

4. An air spring assembly, characterized in that, It includes: A shock absorber (9) ； An air spring tray according to any one of claims 1-3, which is sleeved on the shock absorber (9) and welded to the shock absorber (9).

5. The air spring assembly according to claim 4, characterized in that: The shock absorber (9) is connected to the inner sealing structure (6) on the tray body (1).

6. The air spring assembly according to claim 4, characterized in that, It further includes: An air spring piston (10), which is sleeved on the tray body (1) of the air spring tray and is connected to the bearing (4) on the tray body (1).

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