Air spring upper chamber and air spring shock absorber strut assembly

Abstract

The utility model discloses an air spring upper air chamber and air spring shock absorber support assembly, including pressure -bearing part, connecting portion, skin bag buckle pressure part, and pressure -bearing part can be detachably connected with skin bag buckle pressure part through connecting portion, and pressure -bearing part can be detachably connected with skin bag buckle pressure part, and all are equipped with sub -chamber on pressure -bearing part, connecting portion, skin bag buckle pressure part. In the utility model, the whole upper air chamber structure in prior art is designed into three parts, on the basis that the original upper air chamber pressure bearing and skin bag buckle pressure function are realized, still can adjust the volume of whole upper air chamber inner chamber through connecting portion to adapt to the air spring stiffness of different vehicle type requirement.

Description

Technical Field

[0001] This utility model relates to the field of air spring technology, and more specifically to an air spring upper air chamber and an air spring shock absorber support assembly. Background Technology

[0002] The upper air chamber of the air spring is installed in the suspension air spring damper strut assembly and plays the role of supporting the weight of the vehicle body and transmitting load. The traditional upper air chamber is a single structure. For different vehicle models with different requirements for air spring stiffness, the upper air chamber structure needs to be redesigned, which is costly and wastes design resources. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to provide a structure for an air spring with an adjustable volume.

[0004] This utility model solves the above-mentioned technical problems through the following technical means: an air spring upper air chamber, including a pressure-bearing part, a connecting part, and a bladder clamping part, wherein the pressure-bearing part can be detachably connected to the bladder clamping part through the connecting part, and the pressure-bearing part can be detachably connected to the bladder clamping part, and each of the pressure-bearing part, the connecting part, and the bladder clamping part is provided with a compartment.

[0005] As a preferred technical solution, adjusting the size of the chambers of the connecting part can result in different total chamber volumes after the connecting part is connected to the pressure-bearing part and the bladder buckling part.

[0006] As a preferred technical solution, one end of the connecting part is threadedly connected to the pressure-bearing part, and the other end is threadedly connected to the bladder clamping part.

[0007] As a preferred technical solution, the end of the pressure-bearing part facing the connecting part is provided with an internal thread, the end of the connecting part facing the pressure-bearing part is provided with an external thread that matches the internal thread, the end of the connecting part facing the bladder clamping part is provided with an internal thread, and the end of the bladder clamping part facing the connecting part is provided with an external thread that matches the internal thread.

[0008] As a preferred technical solution, sealing rings are provided on the connection surfaces of the pressure-bearing part and the connecting part, as well as on the connection surfaces of the connecting part and the bladder clamping part.

[0009] As a preferred technical solution, the end of the connecting part facing the pressure-bearing part is provided with a sealing groove that matches the sealing ring, and the end of the bladder clamping part facing the connecting part is provided with a sealing groove.

[0010] As a preferred technical solution, the connecting part includes a first connecting segment and a second connecting segment with a gradually changing circumferential dimension.

[0011] As a preferred technical solution, the end of the bladder buckling part opposite to the connecting part is provided with bladder buckling teeth that are adapted to the bladder.

[0012] As a preferred technical solution, the axes of the pressure-bearing part, the connecting part, and the bladder buckling part are coaxial or non-coaxial.

[0013] This utility model also provides an air spring damper support assembly, including the aforementioned air spring upper air chamber.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, the existing overall upper air chamber structure is designed into three parts. In addition to realizing the original functions of upper air chamber pressure bearing and bladder clamping, the volume of the entire upper air chamber can be adjusted through the connecting part, thereby adapting to the air spring stiffness requirements of different vehicle models. Attached Figure Description

[0016] Figure 1 A schematic diagram of the upper air chamber structure is provided for the background technology of this utility model;

[0017] Figure 2 This is a schematic diagram of the upper air chamber structure provided in Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the upper air chamber explosion structure provided in Embodiment 1 of this utility model;

[0019] Figure 4 This is a schematic diagram of the pressure-bearing part structure provided in Embodiment 1 of this utility model;

[0020] Figure 5 This is a schematic diagram of the connecting part structure provided in Embodiment 1 of this utility model;

[0021] Figure 6 This is a schematic diagram of the bladder clamping part structure provided in Embodiment 1 of this utility model;

[0022] Reference numerals: 1. Upper air chamber; 11. Pressure bearing part; 12. Connecting part; 13. Leather bladder clamping part; 14. Sealing ring; 15. Sealing groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1

[0025] See Figure 1An air spring upper air chamber includes a pressure-bearing part 11, a connecting part 12, and a bladder clamping part 13. The pressure-bearing part 11 is detachably connected to the bladder clamping part 13, and can also be detachably connected to the bladder clamping part 13 via the connecting part 12. This design transforms the existing overall upper air chamber 1 structure into three parts. In addition to achieving the original pressure-bearing and bladder clamping functions of the upper air chamber 1, the connecting part 12 can also adjust the entire inner cavity of the upper air chamber 1. The volume is adjusted to accommodate the air spring stiffness requirements of different vehicle models; the pressure-bearing part 11, the connecting part 12, and the bladder clamping part 13 are respectively provided with a first chamber, a second chamber, and a third chamber; the axes of the pressure-bearing part 11, the connecting part 12, and the bladder clamping part 13 are coaxial or non-coaxial; the air chamber components of the air spring, such as vibration damping blocks, studs, and buffer blocks, are all assembled in the pressure-bearing part 11, and the end of the bladder clamping part 13 opposite to the connecting part 12 is provided with bladder clamping teeth for bladder clamping;

[0026] It should be noted that there are two ways to adjust the volume of the upper air chamber 1 via the connecting part 12:

[0027] Firstly, by adding a connecting part 12 between the pressure-bearing part 11 and the bladder clamping part 13, compared with the direct connection between the pressure-bearing part 11 and the bladder clamping part 13, the setting of the connecting part 12 increases the chamber volume of the upper air chamber 1. The volume of the first chamber formed after the pressure-bearing part 11 is connected to the bladder clamping part 13 through the connecting part 12 is greater than the volume of the second chamber formed after the pressure-bearing part 11 is directly connected to the bladder clamping part 13.

[0028] Secondly, adjusting the dimensions of the two chambers of the connecting part 12 can result in different total chamber volumes after the connecting part 12 is connected to the pressure-bearing part 11 and the bladder clamping part 13. Different volumes of chambers can be obtained by prefabricating connecting parts 12 of different sizes and connecting them to the pressure-bearing part 11 and the bladder clamping part 13. The two ends of the connecting part 12 are detachably fixed to the pressure-bearing part 11 and the bladder clamping part 13, respectively, thereby achieving the adaptation of air spring stiffness to different volumes. Here, different dimensions refer to the height along the axis of the upper air chamber 1.

[0029] See Figure 2 In this embodiment, the detachable connection is taken as a threaded connection, but other detachable connection methods are also possible. The pressure-bearing part 11 is threaded to one end of the connecting part 12, and the other end of the connecting part 12 is threaded to the bladder clamping part 13. The threaded connection is a threaded connection of internal thread and external thread.

[0030] In this embodiment, the end of the pressure-bearing part 11 facing the connecting part 12 is provided with an internal thread 1, the end of the connecting part 12 facing the pressure-bearing part 11 is provided with an external thread 1 that matches the internal thread, the end of the connecting part 12 facing the bladder clamping part 13 is provided with an internal thread 2, and the end of the bladder clamping part 13 facing the connecting part 12 is provided with an external thread 2 that matches the internal thread 2.

[0031] Alternatively, the end of the pressure-bearing part 11 facing the connecting part 12 may be provided with an external thread, the end of the connecting part 12 facing the pressure-bearing part 11 may be provided with an internal thread that matches the external thread, the end of the connecting part 12 facing the bladder clamping part 13 may be provided with an external thread, and the end of the bladder clamping part 13 facing the connecting part 12 may be provided with an internal thread that matches the external thread.

[0032] Alternatively, the pressure-bearing part 11 may have an external thread 1 at one end facing the connecting part 12, the connecting part 12 may have an internal thread 1 at one end facing the pressure-bearing part 11 that is compatible with the external thread, the connecting part 12 may have an internal thread 2 at one end facing the bladder clamping part 13, and the bladder clamping part 13 may have an external thread 2 at one end facing the connecting part 12 that is compatible with the internal thread 2.

[0033] Alternatively, the end of the pressure-bearing part 11 facing the connecting part 12 may be provided with an internal thread, the end of the connecting part 12 facing the pressure-bearing part 11 may be provided with an external thread that matches the internal thread, the end of the connecting part 12 facing the bladder clamping part 13 may be provided with an external thread, and the end of the bladder clamping part 13 facing the connecting part 12 may be provided with an internal thread that matches the external thread.

[0034] See Figure 5 , Figure 6 To improve the sealing performance of the three parts, seals are provided on the connection surfaces of the pressure-bearing part 11 and the connecting part 12, and on the connection surfaces of the connecting part 12 and the bladder clamping part 13. In this embodiment, the connecting part 12 is provided with a sealing groove 15 at the end facing the pressure-bearing part 11, and the bladder clamping part 13 is provided with a sealing groove 15 at the end facing the connecting part 12. A sealing ring 14 (not shown in the figure) is provided in each sealing groove 15.

[0035] Alternatively, a sealing groove 15 can be provided at the end of the pressure-bearing part 11 that is connected to the connecting part 12, and a sealing groove 15 can be provided at the end of the connecting part 12 that is connected to the bladder buckling part 13.

[0036] To ensure a predetermined gap between the upper gas chamber 1 and the opposing component (i.e., the tower pack), the external structure of the upper gas chamber 1 is adapted to the shape of the opposing component. In this embodiment, the connecting portion 12 is adapted to the shape of the opposing component circumferentially. The connecting portion 12 includes a first connecting segment and a second connecting segment with a gradually changing circumferential dimension. Here, the gradually changing circumferential dimension means that the diameter of the first connecting segment is larger than the diameter of the second connecting segment, and there is a smooth transition between the first connecting segment and the second connecting segment.

[0037] In this embodiment, the shape of the pressure-bearing part 11, the connecting part 12, and the bladder clamping part 13 can be circular or other shapes. In this embodiment, the material of the pressure-bearing part 11, the connecting part 12, and the bladder clamping part 13 can be metal, plastic, or other materials.

[0038] Example 2

[0039] The difference between this embodiment and Embodiment 1 is that it provides an air spring damper support assembly that includes the air spring upper air chamber in Embodiment 1.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air chamber for an air spring, characterized in that, It includes a pressure-bearing part, a connecting part, and a bladder clamping part. The pressure-bearing part can be detachably connected to the bladder clamping part through the connecting part. The pressure-bearing part, the connecting part, and the bladder clamping part are all provided with compartments.

2. The air chamber of a spring according to claim 1, characterized in that, Adjusting the dimensions of the chambers in the connecting part can result in different total chamber volumes after the connecting part is connected to the pressure-bearing part and the bladder buckling part.

3. The air chamber of a spring according to claim 1, characterized in that, One end of the connecting part is threaded to the pressure-bearing part, and the other end is threaded to the bladder clamping part.

4. The air chamber of a spring according to claim 1, characterized in that, The end of the pressure-bearing part facing the connecting part is provided with an internal thread 1, the end of the connecting part facing the pressure-bearing part is provided with an external thread 1 that matches the internal thread, the end of the connecting part facing the bladder clamping part is provided with an internal thread 2, and the end of the bladder clamping part facing the connecting part is provided with an external thread 2 that matches the internal thread 2.

5. The air chamber of a spring according to claim 1, characterized in that, Sealing rings are provided on the connection surfaces of the pressure-bearing part and the connecting part, as well as on the connection surfaces of the connecting part and the bladder clamping part.

6. The air chamber of a spring according to claim 1, characterized in that, The end of the connecting part facing the pressure-bearing part is provided with a sealing groove that matches the sealing ring, and the end of the bladder clamping part facing the connecting part is provided with a sealing groove.

7. The air chamber of a spring according to claim 1, characterized in that, The connecting part includes a first connecting segment and a second connecting segment with gradually changing circumferential dimensions.

8. The air chamber of a spring according to claim 1, characterized in that, The end of the bladder buckling part opposite to the connecting part is provided with bladder buckling teeth that are adapted to the bladder.

9. The air chamber of a spring according to claim 1, characterized in that, The pressure-bearing part, connecting part, and bladder clamping part may be coaxial or non-coaxial.

10. A spring damper support assembly, characterized in that, Includes the air chamber of the air spring as described in any one of claims 1-9.

Images