Air spring, vibration reduction system and vehicle

Abstract

The utility model relates to an air spring, a vibration reduction system and a vehicle, the air spring comprises a main body, a bag skin assembly and a bearing assembly, the main body comprises a first cavity and a second cavity which are isolated from each other, and openings are formed in the first cavity and the second cavity in the sides, in the first direction, of the main body correspondingly; the first chamber and the second chamber are respectively used for communicating with gas supply equipment; the bag skin assembly comprises a first bag skin and a second bag skin which are arranged on one side of the main body in the first direction and seal the two openings; the bearing assembly comprises a first bearing piece arranged on the side, in the first direction, of the first bag skin and a second bearing piece arranged on the side, in the first direction, of the second bag skin. The air pressure in the second cavity is kept basically constant, so that the second bag skin can support the to-be-borne structure through the second bearing piece. Meanwhile, the rigidity of the first bag skin can be changed according to the low-frequency vibration of the to-be-borne structure, so that the low-frequency vibration of the to-be-borne structure is filtered, and the vibration reduction performance of the air spring on the to-be-borne structure is improved.

Description

Technical Field

[0001] This application relates to the field of vibration damping technology, and particularly to an air spring, a vibration damping system and a vehicle. Background Art

[0002] An air spring is a spring that supports and dampens a structure to be carried by a bladder filled with compressed air. In the related art, the bladder for carrying the structure to be carried has a relatively large stiffness, which may cause the problem of insufficient vibration damping performance of the bladder of the air spring for the structure to be carried. Utility Model Content

[0003] Embodiments of this application provide an air spring, a vibration damping system and a vehicle to at least partially solve the above technical problems.

[0004] To achieve the above object, according to the first aspect of this application, there is provided an air spring, including:

[0005] A main body, including a first chamber and a second chamber that are isolated from each other, and openings are respectively formed on one side of the main body along a first direction for the first chamber and the second chamber; the first chamber and the second chamber are respectively used for communicating with a gas supply device;

[0006] A bladder assembly, including a first bladder and a second bladder disposed on one side of the main body along the first direction, and the first bladder and the second bladder respectively seal the two openings;

[0007] A load-bearing assembly, including a first load-bearing member and a second load-bearing member, the first load-bearing member is disposed on one side of the first bladder along the first direction, and the second load-bearing member is disposed on one side of the second bladder along the first direction.

[0008] Optionally, the second chamber extends circumferentially along the first chamber; the opening of the second chamber extends circumferentially along the opening of the first chamber.

[0009] Optionally, the air spring further includes a crimping structure connected to the main body;

[0010] Wherein, the first bladder includes a first abutting portion, and the first abutting portion abuts against one side of the main body along the first direction; the crimping structure includes a first crimping portion, and the first crimping portion crimps against one side of the first abutting portion along the first direction; and / or,

[0011] Wherein, the second bladder includes a second abutting portion, and the second abutting portion abuts against one side of the main body along the first direction; the crimping structure includes a second crimping portion, and the second crimping portion crimps against one side of the second abutting portion along the first direction.

[0012] Optionally, the crimping structure includes a first crimping member provided on one side of the main body along the first direction. The first crimping member is located between the two openings, and the first crimping member extends circumferentially along the opening of the first chamber. The first crimping member includes the first crimping portion and / or the second crimping portion.

[0013] Optionally, the crimping structure further includes a second crimping member provided on one side of the main body along the first direction. The opening of the second chamber is located between the first crimping member and the second crimping member, and the second crimping member includes the second crimping portion.

[0014] Optionally, a first sealing member is provided between the crimping structure and the first abutting portion; and / or, a second sealing member is provided between the crimping structure and the second abutting portion.

[0015] Optionally, the first bladder includes a first sealing portion corresponding to the opening of the first chamber. The first abutting portion is located at the edge of the first sealing portion, and at least part of the thickness of the first abutting portion is greater than the thickness of the first sealing portion; and / or,

[0016] The second bladder includes a second sealing portion corresponding to the opening of the second chamber. The second abutting portion is located at the edge of the second sealing portion, and at least part of the thickness of the second abutting portion is greater than the thickness of the second sealing portion.

[0017] Optionally, the ratio of the thickness of at least part of the first abutting portion to the thickness of the first sealing portion is greater than or equal to 1.5 and less than or equal to 2; and / or,

[0018] The ratio of the thickness of at least part of the second abutting portion to the thickness of the second sealing portion is greater than or equal to 1.5 and less than or equal to 2.

[0019] Optionally, the maximum thickness of the first abutting portion is greater than or equal to 1.8 mm and less than or equal to 3 mm; and / or, the maximum thickness of the second abutting portion is greater than or equal to 1.8 mm and less than or equal to 3 mm.

[0020] Optionally, the air spring further includes a limiting structure connected to the main body or the crimping structure;

[0021] Wherein, the limiting structure includes a first limiting portion located on one side of the first bearing member along the first direction. The first limiting portion is used to abut against the first bearing member to limit the distance that the first bearing member moves relative to the main body along the first direction; and / or,

[0022] The limiting structure includes a second limiting portion located on one side of the second carrier along the first direction. The second limiting portion is used to abut against the second carrier to limit the distance that the second carrier moves relative to the main body along the first direction.

[0023] Optionally, the carrier assembly further includes a first mounting member and a first fixing member. The first mounting member is located on the side of the first bladder facing the first chamber. The first fixing member passes through the first mounting member and the first bladder and inserts into the first carrier to fixedly connect the first carrier, the first bladder, and the first mounting member together; and / or,

[0024] The carrier assembly further includes a second mounting member and a second fixing member. The second mounting member is located on the side of the second bladder facing the second chamber. The second fixing member passes through the second mounting member and the second bladder and inserts into the second carrier to fixedly connect the second carrier, the second bladder, and the second mounting member together.

[0025] Optionally, the main body further includes a first damping chamber. The first damping chamber is communicated with the first chamber through a first damping hole. A first communication hole for communicating with the air supply device is formed on the inner surface of the first damping chamber; and / or,

[0026] The main body further includes a second damping chamber. The second damping chamber is communicated with the second chamber through a second damping hole. A second communication hole for communicating with the air supply device is formed on the inner surface of the second damping chamber.

[0027] Optionally, the first damping chamber and the first chamber are sequentially distributed along the first direction; and / or,

[0028] The second damping chamber and the second chamber are sequentially distributed along the first direction.

[0029] Optionally, the first communication hole is located on the side of the main body facing away from the bladder assembly. A first air nozzle communicated with the first communication hole is further provided on the side of the main body facing away from the bladder assembly; and / or,

[0030] The second damping chamber extends circumferentially along the first damping chamber; the second communication hole is located on one side of the main body along a second direction, and the second direction is perpendicular to the first direction; a second air nozzle communicated with the second communication hole is provided on one side of the main body along the second direction.

[0031] Optionally, a receiving groove is formed on the side of the main body facing away from the bladder assembly. The first air nozzle is received in the receiving groove; and / or,

[0032] The number of the second communication holes is multiple, and the multiple second communication holes are sequentially distributed along the circumferential direction of the main body; each of the second communication holes is respectively provided with the second air nozzle.

[0033] Optionally, a third communication hole is formed in the inner surface of the second chamber, and the third communication hole is used for communicating with the air supply device.

[0034] According to a second aspect of the present application, a damping system is provided, including:

[0035] An air spring, the air spring is the air spring as described above, the air spring includes a main body, a bladder assembly and a load-bearing assembly, the main body includes a first chamber and a second chamber that are isolated from each other, and the first chamber and the second chamber are respectively formed with openings on one side of the main body along a first direction; the first chamber and the second chamber are respectively used for communicating with an air supply device; the bladder assembly includes a first bladder and a second bladder disposed on one side of the main body along the first direction, and the first bladder and the second bladder respectively seal the two openings; the load-bearing assembly includes a first load-bearing member and a second load-bearing member, the first load-bearing member is disposed on one side of the first bladder along the first direction, and the second load-bearing member is disposed on one side of the second bladder along the first direction;

[0036] An air supply device, which communicates with the first chamber and the second chamber of the air spring, the air supply device is used to provide a constant air pressure to the second chamber, and the air supply device is also used to adjust the air pressure in the first chamber.

[0037] According to a third aspect of the present application, a vehicle is further provided, the vehicle includes the air spring as described above, the air spring includes a main body, a bladder assembly and a load-bearing assembly, the main body includes a first chamber and a second chamber that are isolated from each other, and the first chamber and the second chamber are respectively formed with openings on one side of the main body along a first direction; the first chamber and the second chamber are respectively used for communicating with an air supply device; the bladder assembly includes a first bladder and a second bladder disposed on one side of the main body along the first direction, and the first bladder and the second bladder respectively seal the two openings; the load-bearing assembly includes a first load-bearing member and a second load-bearing member, the first load-bearing member is disposed on one side of the first bladder along the first direction, and the second load-bearing member is disposed on one side of the second bladder along the first direction; or,

[0038] The vehicle includes the damping system as described above, and the damping system includes:

[0039] Air spring, the air spring being the air spring as described above, the air spring comprising a main body, a bladder assembly and a load-bearing assembly, the main body comprising a first chamber and a second chamber isolated from each other, the first chamber and the second chamber each having an opening formed on one side of the main body along a first direction; the first chamber and the second chamber are respectively used for communicating with a gas supply device; the bladder assembly comprises a first bladder and a second bladder provided on one side of the main body along the first direction, the first bladder and the second bladder respectively sealing the two openings; the load-bearing assembly comprises a first load-bearing member and a second load-bearing member, the first load-bearing member being provided on one side of the first bladder along the first direction, and the second load-bearing member being provided on one side of the second bladder along the first direction;

[0040] Gas supply device, communicating with the first chamber and the second chamber of the air spring, the gas supply device being used for supplying a constant air pressure to the second chamber, and the gas supply device is also used for adjusting the air pressure magnitude in the first chamber.

[0041] The air spring provided by the embodiment of the present application enables the first chamber and the second chamber isolated from each other on the main body to be respectively used for communicating with the gas supply, arranges a first load-bearing member on the side of the first bladder sealing the opening of the first chamber away from the first cavity, and arranges a second load-bearing member on the side of the second bladder sealing the second opening of the second chamber away from the second cavity. When buffering a structure to be loaded by the air spring, the first load-bearing member and the second load-bearing member of the air spring can be respectively connected to the structure to be loaded, and the gas supply device supplies gas to the second chamber of the air spring to keep the air pressure in the second chamber basically constant, so that the stiffness of the second bladder is kept stable, thereby enabling the second bladder to stably support the structure to be loaded through the second load-bearing member. Moreover, based on the elasticity of the second bladder itself, high-frequency vibrations of the structure to be loaded can be filtered.

[0042] On this basis, the stiffness of the first bladder of the air spring is adjusted according to the air pressure magnitude in the first chamber. Therefore, the first chamber of the air spring can receive the gas provided by the gas supply device or discharge the gas according to the low-frequency vibration of the structure to be loaded to adjust the air pressure magnitude in the first chamber, and further change the stiffness of the first bladder, so that the first bladder can offset the impact force generated when the structure to be loaded vibrates at low frequency, thereby realizing the filtering of the low-frequency vibration of the structure to be loaded and improving the vibration damping performance of the air spring for the structure to be loaded.

[0043] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0044] 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 skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] To more comprehensively understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0046] Figure 1 Structural schematic diagram of an embodiment of the air spring provided by the embodiment of the present application;

[0047] Figure 2 is Figure 1 Cross-sectional view along the A-A direction in;

[0048] Figure 3 is Figure 2 Enlarged view of part A in;

[0049] Figure 4 is Figure 1 Cross-sectional view along the B-B direction in;

[0050] Figure 5 is Figure 4 Enlarged view of part B in.

[0051] Explanation of reference numerals:

[0052] Air spring 100;

[0053] Main body 110; First chamber 1101; Isolation part 1102; Second chamber 1103; Opening 1104; First damping chamber 1105; First damping hole 1106; First communication hole 1107; Second damping chamber 1108; Second damping hole 1109; Second communication hole 1110; Third communication hole 1111; First locking hole 1112; Second locking hole 1113; Accommodating groove 1114;

[0054] Bladder assembly 120; First bladder 121; First abutting part 1211; First sealing part 1212; Second bladder 122; Second abutting part 1221; Second sealing part 1222;

[0055] Load-bearing assembly 130; First load-bearing member 131; First mounting member 132; First fixing member 133; Second load-bearing member 134; Second mounting member 135; Second fixing member 136;

[0056] Crimping structure 140; first crimping member 141; first through hole 1411; third locking hole 1412; second crimping member 142; second through hole 1421; first crimping portion 1401; second crimping portion 1402; first mounting groove 1403; second mounting groove 1404;

[0057] Limiting structure 150; limiting member 151; third through hole 1511; first limiting portion 1501; second limiting portion 1502;

[0058] First seal 161; second seal 162; first locking member 171; second locking member 172; third locking member 173; first air nozzle 181; second air nozzle 182; third air nozzle 183; plug 184; first direction X; second direction Y. Specific embodiments

[0059] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0060] An embodiment of the present application provides an air spring, a vibration damping system, and a vehicle.

[0061] Figure 1 It is a schematic structural diagram of an embodiment of the air spring provided by the embodiment of the present application. Figure 2 For Figure 1 The sectional view taken along the A-A direction in. As Figure 1 And Figure 2 As shown, the air spring 100 includes a main body 110 and a bladder assembly 120. The main body 110 includes a first chamber 1101 and a second chamber 1103 that are isolated from each other. The first chamber 1101 and the second chamber 1103 are respectively formed with openings 1104 on one side of the main body 110 along the first direction X, and the first chamber 1101 and the second chamber 1103 are respectively used to communicate with a gas supply device (not shown in the figure). The bladder assembly 120 includes a first bladder 121 and a second bladder 122 provided on one side of the main body 110 along the first direction X. The first bladder 121 and the second bladder 122 respectively seal the two openings 1104.

[0062] Thus, gas can be supplied to the first chamber 1101 and the second chamber 1103 through the gas supply device, or part of the gas in the first chamber 1101 and the second chamber 1103 can be discharged to adjust the air pressure in the first chamber 1101 and the second chamber 1103, thereby adjusting the stiffness of the first bladder 121 and the second bladder 122.

[0063] Among them, the air spring 100 further includes a load-bearing assembly 130, which includes a first load-bearing member 131 and a second load-bearing member 134. The first load-bearing member 131 is disposed on one side of the first bladder 121 along the first direction X, and the second load-bearing member 134 is disposed on one side of the second bladder 122 along the first direction X. The first load-bearing member 131 and the second load-bearing member 134 are respectively used to connect with the structure to be loaded, so that the first bladder 121 and the second bladder 122 can load and buffer the structure to be loaded.

[0064] When buffering the structure to be loaded through the air spring 100, the first load-bearing member 131 and the second load-bearing member 134 of the air spring 100 can be respectively connected with the structure to be loaded, and the second chamber 1103 of the air spring 100 is supplied with gas by a gas supply device, so that the air pressure in the second chamber 1103 is kept basically constant, so that the stiffness of the second bladder 122 is kept stable, so that the second bladder 122 can stably support the structure to be loaded through the second load-bearing member 134. Moreover, based on the elasticity of the second bladder 122 itself, the high-frequency vibration of the structure to be loaded can be filtered.

[0065] On this basis, the stiffness of the first bladder 121 of the air spring 100 can be adjusted according to the air pressure in the first chamber 1101. Therefore, the first chamber 1101 of the air spring 100 can receive the gas provided by the gas supply device or discharge the gas according to the low-frequency vibration of the structure to be loaded, so as to adjust the air pressure in the first chamber 1101, and then change the stiffness of the first bladder 121, so that the first bladder 121 can offset the impact force generated by the structure to be loaded during low-frequency vibration, thereby realizing the filtering of the low-frequency vibration of the structure to be loaded and improving the vibration reduction performance of the air spring 100 for the structure to be loaded.

[0066] In some embodiments, such as Figure 1 and Figure 2 shown, the second chamber 1103 of the main body 110 can be extended along the circumferential direction of the first chamber 1101. Correspondingly, the opening 1104 of the second chamber 1103 is extended along the circumferential direction of the opening 1104 of the first chamber 1101. Thus, the volume of the second chamber 1103 can be increased, and the area of the second bladder 122 for sealing the opening 1104 of the second chamber 1103 can be increased, thereby improving the load-bearing effect of the second bladder 122 on the structure to be loaded.

[0067] Among them, the second chamber 1103 extends circumferentially along the first chamber 1101 to form an annular structure, so as to improve the volume of the second chamber 1103 as much as possible. In addition, the opening 1104 of the second chamber 1103 extends circumferentially along the opening 1104 of the first chamber 1101 to form an annular structure, so as to improve the area of the second bladder 122 that seals the opening 1104 of the second chamber 1103 as much as possible. Specifically, the first chamber 1101 is a cylindrical cavity extending along the first direction X, and the opening 1104 of the first chamber 1101 is a circular opening 1104. The second chamber 1103 is an annular cavity surrounding the first chamber 1101, and the opening 1104 of the second chamber 1103 is an annular opening 1104.

[0068] Continue to refer to Figure 2 , a partition portion 1102 is provided between the first chamber 1101 and the second chamber 1103 to isolate the first chamber 1101 and the second chamber 1103, so as to prevent gas from flowing between the first chamber 1101 and the second chamber 1103, and enable the air pressures in the first chamber 1101 and the second chamber 1103 to be independently adjusted. Among them, the partition portion 1102 extends circumferentially along the first chamber 1101 to form an annular structure.

[0069] As Figures 2 to 5 shown, the air spring 100 further includes a crimping structure 140 connected to the main body 110. The crimping structure 140 is used to abut against the side of the first bladder 121 and / or the second bladder 122 facing away from the main body 110, so as to fix the first bladder 121 and / or the second bladder 122 to the main body 110.

[0070] It should be noted that the crimping structure 140 can be made to simultaneously crimp on the sides of the first bladder 121 and the second bladder 122 facing away from the main body 110, so as to fix the first bladder 121 and the second bladder 122 to one side of the main body 110 along the first direction X. Alternatively, the crimping structure 140 can also be made to only crimp on the side of the first bladder 121 or the second bladder 122 facing away from the main body 110, so as to fix one of the first bladder 121 and the second bladder 122 to one side of the main body 110 along the first direction X, and the other of the first bladder 121 and the second bladder 122 can be fixed to the main body 110 by other means, as long as the first bladder 121 and the second bladder 122 can be sealed to the openings 1104 of the first chamber 1101 and the second chamber 1103 after being connected to the main body 110.

[0071] In some embodiments, as Figures 2 to 5As shown, the first bladder 121 includes a first abutting portion 1211, and the first abutting portion 1211 abuts against one side of the main body 110 along the first direction X. The crimping structure 140 includes a first crimping portion 1401, and the first crimping portion 1401 is crimped against the side of the first abutting portion 1211 of the first bladder 121 that faces away from the main body 110, so as to fix the first bladder 121 to one side of the main body 110 along the first direction X, thereby improving the sealing effect of the first bladder 121 on the opening 1104 of the first chamber 1101.

[0072] Similarly, the second bladder 122 includes a second abutting portion 1221, and the second abutting portion 1221 abuts against one side of the main body 110 along the first direction X. The crimping structure 140 includes a second crimping portion 1402, and the second crimping portion 1402 is crimped against the side of the second abutting portion 1221 of the second bladder 122 that faces away from the main body 110, so as to fix the second bladder 122 to one side of the main body 110 along the first direction X, thereby improving the sealing effect of the second bladder 122 on the opening 1104 of the second chamber 1103.

[0073] Continuing to refer to Figures 2 to 5 , the crimping structure 140 can include a first crimping member 141 provided on one side of the main body 110 along the first direction X, and the first crimping member 141 includes a first crimping portion 1401. That is, the first crimping member 141 is crimped against the side of the first abutting portion 1211 of the first bladder 121 that faces away from the main body 110.

[0074] Among them, the first crimping member 141 is located between the two openings 1104 of the first chamber 1101 and the second chamber 1103, and the first crimping member 141 extends circumferentially along the opening 1104 of the first chamber 1101. Thus, the area of the first crimping portion 1401 of the first crimping member 141 and the first abutting portion 1211 of the first bladder 121 can be further increased, thereby further improving the connection stability between the first bladder 121 and the main body 110.

[0075] Specifically, the first bladder 121 includes a first sealing portion 1212 corresponding to the opening 1104 of the first chamber 1101, and the first abutting portion 1211 is located at the edge of the first sealing portion 1212. The first abutting portion 1211 extends circumferentially along the first sealing portion 1212 to form an annular structure. The first crimping portion 1401 is located on the side of the first crimping member 141 close to the opening 1104 of the first chamber 1101. The first crimping member 141 extends circumferentially along the opening 1104 of the first chamber 1101 to form an annular structure, and the first crimping portion 1401 also extends circumferentially along the opening 1104 of the first chamber 1101 to form an annular structure.

[0076] As Figure 5As shown, the first crimping member 141 may further include a second crimping portion 1402, that is, the first crimping member 141 is crimped to the side of the second abutting portion 1221 of the second bladder 122 facing away from the main body 110. Thus, when the first crimping member 141 is connected to the main body 110, it is possible to simultaneously crimp the first abutting portion 1211 of the first bladder 121 and the second abutting portion 1221 of the second bladder 122, which is beneficial to simplify the structure of the air spring 100 and improve the assembly efficiency of the air spring 100.

[0077] Of course, the first crimping member 141 may also include only one of the first crimping portion 1401 and the second crimping portion 1402, that is, the first crimping member 141 is only used to crimp and fix one of the first abutting portion 1211 of the first bladder 121 and the second abutting portion 1221 of the second bladder 122, and the other of the first abutting portion 1211 of the first bladder 121 and the second abutting portion 1221 of the second bladder 122 may be crimped by other crimping members.

[0078] In some embodiments, the air spring 100 includes a first locking member 171, and the first locking member 171 passes through the first crimping member 141 and inserts into the main body 110 to fixedly connect the first crimping member 141 and the main body 110, so that the connection between the first crimping member 141 and the main body 110 is more stable and convenient.

[0079] Among them, the number of the first locking members 171 is multiple, and the multiple first locking members 171 are sequentially and spaced apart along the circumference of the opening 1104 of the first chamber 1101 to further improve the connection stability between the first crimping member 141 and the main body 110.

[0080] Specifically, a first locking hole 1112 may be formed on one side of the main body 110 along the first direction X, and a first through hole 1411 is formed in the first crimping member 141. The first through hole 1411 penetrates the first crimping member 141 along the first direction X. The first locking member 171 passes through the first through hole 1411 in the reverse direction of the first direction X and inserts into the first locking hole 1112, thereby fixedly connecting the first crimping member 141 and the main body 110. The first locking member 171 may be a screw or any other locking member that can pass through the first crimping member 141 and insert into the main body 110 and fixedly connect and lock the first crimping member 141 and the main body 110.

[0081] In some embodiments, such as Figures 2 to 5As shown, the crimping structure 140 may further include a second crimping member 142 disposed on one side of the main body 110 along the first direction X. The opening 1104 of the second chamber 1103 is located between the first crimping member 141 and the second crimping member 142. The second crimping member 142 includes a second crimping portion 1402. Thus, the second abutting portion 1221 of the second bladder 122 away from the edge of the first bladder 121 can be crimped to one side of the main body 110 along the first direction X by the second crimping portion 1402 of the second crimping member 142, so that the second bladder 122 can better seal the opening 1104 of the second chamber 1103.

[0082] Specifically, the second bladder 122 includes a second sealing portion 1222 corresponding to the opening 1104 of the second chamber 1103. The second abutting portion 1221 is located at the edge of the second sealing portion 1222. Among them, the second sealing portion 1222 extends in a circumferential direction of the opening 1104 of the first chamber 1101 to form an annular structure. Second abutting portions 1221 are provided on both the side edge of the second sealing portion 1222 close to the opening 1104 of the first chamber 1101 and the side edge away from the opening 1104 of the first chamber 1101, and the second abutting portions 1221 extend in a circumferential direction of the opening 1104 of the first chamber 1101 to form an annular structure. The second crimping portion 1402 of the second crimping member 142 is crimped to the second abutting portion 1221 of the second bladder 122 away from the side edge of the opening 1104 of the first chamber 1101.

[0083] The second crimping portion 1402 of the first crimping member 141 is located on the side of the second crimping member 142 close to the opening 1104 of the second chamber 1103. The second crimping portion 1402 of the first crimping member 141 extends in a circumferential direction of the opening 1104 of the first chamber 1101 to form an annular structure. The second crimping portion 1402 of the first crimping member 141 is crimped to the second abutting portion 1221 of the second bladder 122 close to the side edge of the opening 1104 of the first chamber 1101.

[0084] In some embodiments, the air spring 100 includes a second locking member 172. The second locking member 172 passes through the second crimping member 142 and is inserted into the main body 110 to fixedly connect the second crimping member 142 and the main body 110, so that the connection between the second crimping member 142 and the main body 110 is more stable and convenient.

[0085] Among them, the number of the second locking members 172 is multiple, and the multiple second locking members 172 are sequentially and spaced apart in a circumferential direction of the opening 1104 of the first chamber 1101 to further improve the connection stability between the second crimping member 142 and the main body 110.

[0086] Specifically, a second locking hole 1113 can be formed on one side of the main body 110 along the first direction X, and a second through hole 1421 is formed in the second crimping member 142. The second through hole 1421 penetrates the second crimping member 142 along the second direction Y. The second locking member 172 passes through the second through hole 1421 along the reverse direction of the first direction X and is inserted into the second locking hole 1113, thereby fixedly connecting the second crimping member 142 to the main body 110. The second locking member 172 can be a screw or any other locking member that can pass through the second crimping member 142 and be inserted into the main body 110 to fixedly connect and lock the second crimping member 142 and the main body 110.

[0087] In some embodiments, a first sealing member 161 is provided between the first abutting portion 1211 of the crimping structure 140 and the first bladder 121, thereby improving the sealing effect between the first abutting portion 1211 of the crimping structure 140 and the first bladder 121.

[0088] Among them, a first sealing member 161 can be provided between the first crimping portion 1401 of the crimping structure 140 and the first abutting portion 1211 of the first bladder 121. The first crimping portion 1401 is indirectly crimped to the side of the first abutting portion 1211 of the first bladder 121 away from the main body 110 through the first sealing member 161. Specifically, the first sealing member 161 is an annular sealing ring extending circumferentially along the opening 1104 of the first chamber 1101. A first installation groove 1403 is formed on the side of the first crimping portion 1401 facing the main body 110. The first installation groove 1403 extends circumferentially along the opening 1104 of the first chamber 1101 to form an annular structure. The first sealing member 161 is installed in the first installation groove 1403, one side of the first sealing member 161 abuts against the bottom surface of the installation groove, and the other side of the first sealing member 161 abuts against the side of the first abutting portion 1211 of the first bladder 121 away from the main body 110.

[0089] Similarly, a second sealing member 162 is provided between the second abutting portion 1221 of the crimping structure 140 and the second bladder 122, thereby improving the sealing effect between the second abutting portion 1221 of the crimping structure 140 and the second bladder 122.

[0090] Among them, a second sealing member 162 can be provided between the second crimping portion 1402 of the crimping structure 140 and the second abutting portion 1221 of the second bladder 122. The second crimping portion 1402 is indirectly crimped to the side of the second abutting portion 1221 of the second bladder 122 away from the main body 110 through the second sealing member 162.

[0091] Specifically, the second sealing member 162 is an annular sealing ring extending along the circumference of the opening 1104 of the second chamber 1103. There are two second sealing members 162, one of which is located between the opening 1104 of the second chamber 1103 and the opening 1104 of the first chamber 1101, and the other second sealing member 162 is located on a side of the opening 1104 of the second chamber 1103 away from the opening 1104 of the first chamber 1101.

[0092] The second crimping portion 1402 of the first crimping member 141 and the second crimping portion 1402 of the second crimping member 142 are respectively indirectly crimped to the side of the two second abutting portions 1221 of the second bladder skin 122 away from the main body 110 through the second sealing member 162. A second mounting groove 1404 is provided on the side of the second crimping portion 1402 facing the main body 110, and the second mounting groove 1404 extends in an annular structure along the circumference of the opening 1104 of the second chamber 1103. The second sealing member 162 is installed in the second mounting groove 1404, and one side of the second sealing member 162 abuts against the bottom surface of the mounting groove, and the other side of the second sealing member 162 abuts against the side of the second abutting portion 1221 of the second bladder skin 122 away from the main body 110.

[0093] In some embodiments, the thickness of at least part of the first abutting portion 1211 of the first bladder skin 121 can be made greater than the thickness of the first sealing portion 1212. Thus, the structural strength of the first abutting portion 1211 of the first bladder skin 121 can be improved, and the pressure applied by the crimping structure 140 to the first abutting portion 1211 of the first bladder skin 121 is prevented from being too large, thereby causing the first abutting portion 1211 of the first bladder skin 121 to be severely deformed or even damaged, thereby affecting the sealing effect of the first bladder skin 121 on the opening 1104 of the first chamber 1101.

[0094] The ratio of the thickness of at least part of the first abutting portion 1211 of the first bladder skin 121 to the thickness of the first sealing portion 1212 can be made greater than or equal to 1.5 and less than or equal to 2, thereby further improving the structural strength of the first abutting portion 1211 of the first bladder skin 121, and avoiding the first abutting portion 1211 of the first bladder skin 121 to be severely deformed or even damaged due to excessive pressure applied by the crimping structure 140 to the first abutting portion 1211 of the first bladder skin 121. At the same time, while ensuring that the first abutting portion 1211 of the first bladder skin 121 meets the strength and elasticity requirements, it is possible to avoid the first abutting portion 1211 of the first bladder skin 121 to be too thick, thereby significantly increasing the cost of the first bladder skin 121.

[0095] The ratio of the thickness of at least a part of the first abutting portion 1211 of the first bladder 121 to the thickness of the first sealing portion 1212 can be 1.6, 1.8, 1.9, etc., and can be specifically determined according to factors such as the material and structure of the first bladder 121 and the magnitude of the pressure exerted by the crimping structure 140.

[0096] In some embodiments, it is also possible to make the thickness of at least a part of the second abutting portion 1221 of the second bladder 122 greater than the thickness of the second sealing portion 1222. Thereby, the structural strength of the second abutting portion 1221 of the second bladder 122 can be improved, and it is possible to avoid excessive pressure exerted by the crimping structure 140 on the second abutting portion 1221 of the second bladder 122, which may cause serious deformation or even damage to the second abutting portion 1221 of the second bladder 122, thereby affecting the sealing effect of the second bladder 122 on the opening 1104 of the second chamber 1103.

[0097] Among them, the ratio of the thickness of at least a part of the second abutting portion 1221 of the second bladder 122 to the thickness of the second sealing portion 1222 can be greater than or equal to 1.5 and less than or equal to 2, so as to further improve the structural strength of the second abutting portion 1221 of the second bladder 122 and avoid excessive pressure exerted by the crimping structure 140 on the second abutting portion 1221 of the second bladder 122, which may cause serious deformation or even damage to the second abutting portion 1221 of the second bladder 122. At the same time, while the second abutting portion 1221 of the second bladder 122 meets the strength and elasticity requirements, it is possible to avoid a significant increase in the cost of the second bladder 122 due to an excessive thickness of the second abutting portion 1221 of the second bladder 122.

[0098] The ratio of the thickness of at least a part of the second abutting portion 1221 of the second bladder 122 to the thickness of the second sealing portion 1222 can be 1.6, 1.8, 1.9, etc., and can be specifically determined according to factors such as the material and structure of the second bladder 122 and the magnitude of the pressure exerted by the crimping structure 140.

[0099] It should be noted that it is possible to simultaneously make the thickness of at least a part of the first abutting portion 1211 of the first bladder 121 greater than the thickness of the first sealing portion 1212, and the thickness of at least a part of the second abutting portion 1221 of the second bladder 122 greater than the thickness of the second sealing portion 1222. Or, it is also possible to only make the thickness of at least a part of the first abutting portion 1211 of the first bladder 121 greater than the thickness of the first sealing portion 1212, or only make the thickness of at least a part of the second abutting portion 1221 of the second bladder 122 greater than the thickness of the second sealing portion 1222. Of course, the former can achieve effective sealing of the openings 1104 of the first chamber 1101 and the second chamber 1103, which is beneficial to improving the working stability of the air spring 100.

[0100] In other embodiments, the maximum thickness of the first abutting portion 1211 of the first skin 121 may also be greater than or equal to 1.8 mm and less than or equal to 3 mm, so as to improve the structural strength of the first abutting portion 1211 of the first skin 121, and avoid excessive pressure exerted by the crimping structure 140 on the first abutting portion 1211 of the first skin 121, which may cause serious deformation or even damage to the first abutting portion 1211 of the first skin 121. At the same time, while the first abutting portion 1211 of the first skin 121 meets the strength and elasticity requirements, the thickness of the first abutting portion 1211 of the first skin 121 is minimized to avoid a significant increase in the cost of the first skin 121.

[0101] Among them, the maximum thickness of the first abutting portion 1211 of the first skin 121 may be 1.9 mm, 2.2 mm, 2.5 mm, 2.8 mm, etc., which can be specifically determined according to factors such as the material and structure of the first skin 121 and the magnitude of the pressure exerted by the crimping structure 140.

[0102] In addition, the thickness of the first sealing portion 1212 of the first skin 121 is greater than or equal to 1.2 mm and less than or equal to 1.5 mm, so that the strength of the first sealing portion 1212 of the first skin 121 meets the requirements, while maintaining good elasticity, the cost of the first skin 121 is reduced as much as possible. Among them, the thickness of the first sealing portion 1212 of the first skin 121 may be 1.25 mm, 1.3 mm, 1.4 mm, 1.45 mm, etc., which can be specifically determined according to factors such as the material and structure of the first skin 121 and the magnitude of the pressure exerted by the crimping structure 140.

[0103] In other embodiments, the maximum thickness of the second abutting portion 1221 of the second skin 122 may also be greater than or equal to 1.8 mm and less than or equal to 3 mm, so as to improve the structural strength of the second abutting portion 1221 of the second skin 122, and avoid excessive pressure exerted by the crimping structure 140 on the second abutting portion 1221 of the second skin 122, which may cause serious deformation or even damage to the second abutting portion 1221 of the second skin 122. At the same time, while the second abutting portion 1221 of the second skin 122 meets the strength and elasticity requirements, the thickness of the second abutting portion 1221 of the second skin 122 is minimized to avoid a significant increase in the cost of the second skin 122.

[0104] Among them, the maximum thickness of the second abutting portion 1221 of the second skin 122 may be 1.9 mm, 2.2 mm, 2.5 mm, 2.8 mm, etc., which can be specifically determined according to factors such as the material and structure of the second skin 122 and the magnitude of the pressure exerted by the crimping structure 140.

[0105] In addition, the thickness of the second sealing portion 1222 of the second bladder 122 is greater than or equal to 1.2 mm and less than or equal to 1.5 mm, so that the strength of the second sealing portion 1222 of the second bladder 122 meets the requirements, while maintaining good elasticity and reducing the cost of the second bladder 122 as much as possible. Among them, the thickness of the second sealing portion 1222 of the second bladder 122 can be 1.25 mm, 1.3 mm, 1.4 mm, 1.45 mm, etc., which can be specifically determined according to factors such as the material and structure of the second bladder 122 and the pressure of the crimping structure 140.

[0106] In some embodiments, as Figures 2 to 5 shown, the air spring 100 may further include a limiting structure 150 connected to the main body 110 or the crimping structure 140. The limiting structure 150 is used to abut against the first carrier 131 and / or the second carrier 134 to limit the distance that the first carrier 131 and / or the second carrier 134 moves relative to the main body 110 in the first direction X.

[0107] Among them, the limiting structure 150 may include a first limiting portion 1501 located on one side of the first carrier 131 in the first direction X. The first limiting portion 1501 is used to abut against the first carrier 131 to limit the distance that the first carrier 131 moves relative to the main body 110 in the first direction X.

[0108] By limiting the distance that the first carrier 131 moves relative to the main body 110 in the first direction X through the first limiting portion 1501, it is possible to limit the stroke of the first carrier 131 in the direction away from the main body 110, which is beneficial to reducing the problem that the first carrier 131 moves too far in the direction away from the main body 110 driven by the structure to be carried, resulting in the first bladder 121 being subjected to a large tensile force and being severely deformed or even damaged.

[0109] In some embodiments, the limiting structure 150 may include a limiting member 151, and the limiting member 151 is provided on one side of the first crimping member 141 in the first direction X. Among them, the limiting member 151 includes the first limiting portion 1501. Thus, the limiting member 151 can be connected to the main body 110, so that the first limiting portion 1501 can abut against the first carrier 131 to limit the distance that the first carrier 131 moves relative to the main body 110 in the first direction X.

[0110] Specifically, the limiting member 151 extends along the circumference of the opening 1104 of the first chamber 1101. The first limiting portion 1501 of the limiting member 151 protrudes from the side of the limiting member 151 facing the opening 1104 of the first chamber 1101, and the first limiting portion 1501 extends along the circumference of the opening 1104 of the first chamber 1101. When the limiting member 151 is disposed on one side of the first carrier 131 along the first direction X, the first limiting portion 1501 is located on one side of the first carrier 131 along the first direction X, and the first limiting portion 1501 can abut against one side of the first carrier 131 along the first direction X, thereby restricting the distance that the first carrier 131 moves relative to the main body 110 along the first direction X.

[0111] Among them, the limiting member 151 extends along the circumference of the opening 1104 of the first chamber 1101 to form an annular structure. The first limiting portion 1501 extends along the circumference of the opening 1104 of the first chamber 1101 to form an annular structure. The first limiting portion 1501 abuts against one side of the outer peripheral flange of the first carrier 131 along the first direction X, thereby restricting the distance that the first carrier 131 moves relative to the main body 110 along the first direction X.

[0112] In some embodiments, the air spring 100 may further include a third locking member 173. The third locking member 173 passes through the limiting member 151 and is inserted into the first crimping member 141 to fixedly connect the limiting member 151 and the first crimping member 141, thereby making the connection between the limiting member 151 and the first crimping member 141 more stable and convenient.

[0113] Among them, the number of the third locking members 173 is multiple, and the multiple third locking members 173 are sequentially and spaced apart along the circumference of the opening 1104 of the first chamber 1101 to further improve the connection stability between the limiting member 151 and the first crimping member 141.

[0114] Specifically, a third locking hole 1412 may be formed on one side of the first crimping member 141 along the first direction X, and a third through hole 1511 is formed on the limiting member 151. The third through hole 1511 penetrates the limiting member 151 along the first direction X. The third locking member 173 passes through the third through hole 1511 along the reverse direction of the first direction X and is inserted into the third locking hole 1412, thereby fixedly connecting the limiting member 151 and the first crimping member 141. The third locking member 173 may be a screw or any other locking member that can pass through the limiting member 151 and be inserted into the first crimping member 141 to fixedly connect the limiting member 151 and the first crimping member 141.

[0115] In some embodiments, the limiting structure 150 may include a second limiting portion 1502 located on one side of the second carrier 134 along the first direction X. The second limiting portion 1502 is configured to abut against the second carrier 134 to limit the distance that the second carrier 134 moves relative to the main body 110 along the first direction X.

[0116] By limiting the distance that the second carrier 134 moves relative to the main body 110 along the first direction X through the second limiting portion 1502, the travel of the second carrier 134 in the direction away from the main body 110 can be restricted, which helps to reduce the problem that the second carrier 134 moves too far in the direction away from the main body 110 driven by the structure to be carried, resulting in excessive tension on the second bladder 122 and serious deformation or even damage.

[0117] Among them, the limiting member 151 may include the second limiting portion 1502. Thus, the limiting member 151 can be connected to the main body 110, so that the second limiting portion 1502 can abut against the second carrier 134 to limit the distance that the second carrier 134 moves relative to the main body 110 along the first direction X.

[0118] Specifically, the limiting member 151 extends along the circumference of the opening 1104 of the first chamber 1101. The first limiting portion 1501 of the second limiting member 151 protrudes from the side of the limiting member 151 away from the opening 1104 of the first chamber 1101, and the second limiting portion 1502 extends along the circumference of the opening 1104 of the first chamber 1101. When the limiting member 151 is disposed on one side of the first carrier 131 along the first direction X, the second limiting portion 1502 is located on one side of the second carrier 134 along the first direction X, and the second limiting portion 1502 can abut against one side of the second carrier 134 along the first direction X, thereby limiting the distance that the second carrier 134 moves relative to the main body 110 along the first direction X.

[0119] Among them, the limiting member 151 extends along the circumference of the opening 1104 of the first chamber 1101 to form an annular structure. The second limiting portion 1502 extends along the circumference of the opening 1104 of the first chamber 1101 to form an annular structure. The second limiting portion 1502 of the limiting member 151 abuts against one side of the outer peripheral flange of the second carrier 134 close to the opening 1104 of the first chamber 1101 along the first direction X, thereby limiting the distance that the second carrier 134 moves relative to the main body 110 along the first direction X.

[0120] In some embodiments, such as Figure 2As shown, a second limiting portion 1502 may be provided on the second crimping member 142. When the second crimping member 142 is connected to the main body 110 and the second crimping portion 1402 of the second crimping member 142 is crimped to the side of the second abutting portion 1221 of the second bladder 122 facing away from the main body 110, the second limiting portion 1502 of the second crimping member 142 is located on one side of the second carrier member 134 along the first direction X, and the second limiting portion 1502 can abut against one side of the second carrier member 134 along the first direction X, thereby restricting the distance of the second carrier member 134 moving relative to the main body 110 along the first direction X.

[0121] Specifically, the second crimping member 142 extends circumferentially along the opening 1104 of the first chamber 1101. The second limiting portion 1502 protrudes from the side of the second crimping member 142 facing the opening 1104 of the first chamber 1101, and the second limiting portion 1502 of the second crimping member 142 extends circumferentially along the opening 1104 of the first chamber 1101. When the second crimping member 142 is connected to the main body 110, the second limiting portion 1502 of the second crimping member 142 is located on the second carrier member 134 and the second limiting portion 1502 can abut against one side of the second carrier member 134 along the first direction X, thereby restricting the distance of the second carrier member 134 moving relative to the main body 110 along the first direction X.

[0122] Wherein, the second crimping member 142 extends circumferentially along the opening 1104 of the first chamber 1101 to form an annular structure. The second limiting portion 1502 of the second crimping member 142 extends circumferentially along the opening 1104 of the first chamber 1101 to form an annular structure. The second limiting portion 1502 of the second crimping member 142 abuts against one side of the outer peripheral flange of the second carrier member 134 away from the opening 1104 of the first chamber 1101 along the first direction X, thereby restricting the distance of the second carrier member 134 moving relative to the main body 110 along the first direction X.

[0123] In some embodiments, as Figure 2 shown, the carrier assembly 130 may further include a first mounting member 132 and a first fixing member 133. The first mounting member 132 is located on the side of the first bladder 121 facing the first chamber 1101. The first fixing member 133 passes through the first mounting member 132 and the first bladder 121 and is inserted into the first carrier member 131 to fixedly connect the first carrier member 131, the first bladder 121 and the first mounting member 132 together.

[0124] By clamping the first bladder 121 between the first carrier 131 and the first mounting member 132, and inserting the first fixing member 133 through the first mounting member 132 and the first bladder 121 and then into the first carrier 131 to fixedly connect the first carrier 131, the first bladder 121 and the first mounting member 132 together, the connection stability between the first bladder 121 and the first carrier 131 can be improved, enabling the first bladder 121 to better filter the low-frequency vibrations of the structure to be carried.

[0125] Among them, the number of the first fixing members 133 is multiple. The multiple first fixing members 133 respectively pass through the first mounting member 132 and the first bladder 121, and are inserted into the first carrier 131 to fixedly connect the first carrier 131, the first bladder 121 and the first mounting member 132 together.

[0126] Specifically, the first mounting member 132 is arranged in a plate shape. One side plate surface of the first mounting member 132 abuts against the side surface of the first bladder 121. The first fixing member 133 passes through the first mounting member 132 and the first bladder 121 along the first direction X and is inserted into the first carrier 131 to fixedly connect the first carrier 131, the first bladder 121 and the first mounting member 132 together. The first fixing member 133 can be a screw or other fixing member capable of fixedly connecting the first carrier 131, the first bladder 121 and the first mounting member 132 together.

[0127] In some embodiments, the load-bearing assembly 130 may further include a second mounting member 135 and a second fixing member 136. The second mounting member 135 is located on the side of the second bladder 122 facing the second chamber 1103. The second fixing member 136 passes through the second mounting member 135 and the second bladder 122 and is inserted into the second carrier 134 to fixedly connect the second carrier 134, the second bladder 122 and the second mounting member 135 together.

[0128] By clamping the second bladder 122 between the second carrier 134 and the second mounting member 135, and inserting the second fixing member 136 through the second mounting member 135 and the second bladder 122 and then into the second carrier 134 to fixedly connect the second carrier 134, the second bladder 122 and the second mounting member 135 together, the connection stability between the second bladder 122 and the second carrier 134 can be improved, enabling the second bladder 122 to better stably support the structure to be carried and filter the high-frequency vibrations of the structure to be carried, so as to improve the vibration damping performance of the air spring 100 for the structure to be carried.

[0129] Among them, the number of the second fixing members 136 is multiple. The multiple second fixing members 136 respectively pass through the second mounting member 135 and the second bladder 122, and are inserted into the second bearing member 134 to fixedly connect the second bearing member 134, the second bladder 122 and the second mounting member 135 together. The second mounting member 135 extends along the circumference of the opening 1104 of the first chamber 1101, and the multiple second fixing members 136 are sequentially and spaced apart along the circumference of the opening 1104 of the first chamber 1101.

[0130] Specifically, the second mounting member 135 is arranged in a plate shape. The second mounting member 135 extends along the circumference of the opening 1104 of the first chamber 1101 to form an annular structure. One side plate surface of the second mounting member 135 abuts against the side surface of the second bladder 122. The second fixing member 136 passes through the second mounting member 135 and the second bladder 122 along the first direction X and is inserted into the second bearing member 134 to fixedly connect the second bearing member 134, the second bladder 122 and the second mounting member 135 together. The second fixing member 136 can be a screw or other fixing member capable of fixedly connecting the second bearing member 134, the second bladder 122 and the second mounting member 135 together.

[0131] In some embodiments, as Figure 2 shown, the main body 110 further includes a first damping chamber 1105, which is communicated with the first chamber 1101 through a first damping hole 1106. A first communication hole 1107 for communicating with a gas supply device is formed on the inner surface of the first damping chamber 1105. Thus, the gas supply device can supply gas to the first damping chamber 1105 through the first communication hole 1107, or discharge the gas in the first damping chamber 1105 through the first communication hole 1107 to adjust the air pressure in the first damping chamber 1105, and then make the air flow between the first damping chamber 1105 and the first chamber 1101 through the first damping hole 1106 to adjust the air pressure in the first chamber 1101. Since the first damping hole 1106 has a certain damping effect on the air flow between the first damping chamber 1105 and the first chamber 1101, it is beneficial to improve the accuracy of adjusting the air pressure in the first chamber 1101.

[0132] Among them, the first damping chamber 1105 and the first chamber 1101 can be sequentially distributed along the first direction X, so that the first chamber 1101 and the first damping chamber 1105 are closer to each other, facilitating the formation of the first damping hole 1106 between the first damping chamber 1105 and the first chamber 1101.

[0133] In addition, the first communication hole 1107 communicating with the first damping chamber 1105 can be located on the side of the main body 110 away from the bladder assembly 120, and a first air nozzle 181 communicating with the first communication hole 1107 is further provided on the side of the main body 110 away from the bladder assembly 120. The first communication hole 1107 can be more conveniently communicated with the air supply device through the first air nozzle 181.

[0134] Among them, a receiving groove 1114 can be formed on the side of the main body 110 away from the bladder assembly 120, and the first air nozzle 181 is received in the receiving groove 1114. Thus, the first air nozzle 181 can be protected, and the problem that the first air nozzle 181 is damaged due to collision can be reduced.

[0135] Specifically, the first damping chamber 1105 is a cylindrical cavity extending along the first direction X. The inner diameter of the first damping chamber 1105 can be the same as or different from the inner diameter of the first chamber 1101. The first damping hole 1106 is located between the first damping chamber 1105 and the first chamber 1101, and the first damping hole 1106 extends along the first direction X. One end of the first damping hole 1106 communicates with the first chamber 1101, and the other end of the first damping hole 1106 communicates with the first damping chamber 1105.

[0136] The receiving groove 1114 is a cylindrical cavity extending along the first direction X. The inner diameter of the receiving groove 1114 can be the same as or different from the inner diameter of the first damping chamber 1105. The first communication hole 1107 is located between the receiving groove 1114 and the first damping chamber 1105, and the first communication hole 1107 extends along the first direction X. One end of the first communication hole 1107 communicates with the first damping chamber 1105, and the other end of the first communication hole 1107 forms a connection port on the bottom surface of the receiving groove 1114.

[0137] One end of the first air nozzle 181 is connected to the bottom surface of the receiving groove 1114 and communicates with the connection port of the first communication hole 1107. The length of the first air nozzle 181 along the first direction X is less than or equal to the depth of the receiving groove 1114 along the first direction X, so that the first air nozzle 181 can be completely received in the receiving groove 1114.

[0138] In some embodiments, the main body 110 further includes a second damping chamber 1108. The second damping chamber 1108 communicates with the second chamber 1103 through a second damping hole 1109. A second communication hole 1110 for communicating with a gas supply device is formed on the inner surface of the second damping chamber 1108. Thus, the gas supply device can supply gas to the second damping chamber 1108 through the second communication hole 1110, or discharge the gas in the second damping chamber 1108 through the second communication hole 1110 to adjust the air pressure in the second damping chamber 1108, and then make the air flow between the second damping chamber 1108 and the second chamber 1103 through the second damping hole 1109 to adjust the air pressure in the second chamber 1103. Since the second damping hole 1109 has a certain damping effect on the air flow between the second damping chamber 1108 and the second chamber 1103, it is beneficial to improve the accuracy of adjusting the air pressure in the second chamber 1103.

[0139] Among them, the second damping chamber 1108 and the second chamber 1103 can be arranged in sequence along the first direction X, so that the second chamber 1103 and the second damping chamber 1108 are closer to each other, facilitating the formation of the second damping hole 1109 between the second damping chamber 1108 and the second chamber 1103.

[0140] In addition, the second damping chamber 1108 can extend along the circumferential direction of the first damping chamber 1105. The second communication hole 1110 is located on one side of the main body 110 along the second direction Y, and the second direction Y is perpendicular to the first direction X. A second air nozzle 182 communicating with the second communication hole 1110 is provided on one side of the main body 110 along the second direction Y. Thus, the second communication hole 1110 can be more conveniently communicated with the gas supply device through the second air nozzle 182.

[0141] Among them, the number of the second communication holes 1110 can be multiple, and the multiple second communication holes 1110 are sequentially distributed along the circumferential direction of the main body 110. Each second communication hole 1110 is respectively provided with a second air nozzle 182. Thus, the gas supply device can supply gas to the second damping chamber 1108 through the multiple second communication holes 1110, or discharge the gas in the second damping chamber 1108 through the multiple second communication holes 1110 to more quickly adjust the intensity of the air pressure in the second damping chamber 1108 and the second chamber 1103, which is beneficial to improving the filtering sensitivity of the air spring 100 to the low-frequency vibration of the structure to be carried, thereby improving the vibration damping effect of the air spring 100.

[0142] In some embodiments, such as Figure 2As shown, a third communication hole 1111 may also be provided on the inner surface of the second chamber 1103, and the third communication hole 1111 is used to communicate with a gas supply device. Thus, the second chamber 1103 can be directly supplied with gas by the gas supply device, or the gas in the second chamber 1103 can be discharged through the third communication hole 1111, so as to adjust the air pressure in the second chamber 1103 more quickly.

[0143] Among them, a third air nozzle 183 communicating with the third communication hole 1111 may be provided on the main body 110, so that the third communication hole 1111 can be more conveniently communicated with the gas supply device through the third air nozzle 183.

[0144] Specifically, the second chamber 1103 extends along the circumferential direction of the first chamber 1101. The third communication hole 1111 is located on one side of the main body 110 along the second direction Y, and the second direction Y is perpendicular to the first direction X. A third air nozzle 183 communicating with the third communication hole 1111 is also provided on one side of the main body 110 along the second direction Y.

[0145] Among them, the number of the third communication holes 1111 can be multiple, and the multiple third communication holes 1111 are sequentially and spaced apart along the circumferential direction of the main body 110. Some of the third communication holes 1111 are correspondingly provided with third air nozzles 183, and plugs 184 are provided in the other communication holes, so that the other third communication holes 1111 are in a closed state, so as to connect more third communication holes 1111 with the gas supply device according to needs in the later stage.

[0146] It should be noted that in the embodiment of the present application, the first damping chamber 1105 and / or the second damping chamber 1108 may not be provided in the main body 110 of the air spring 100, but the first chamber 1101 and / or the second chamber 1103 may be directly communicated with the gas supply device, and the air pressure in the first chamber 1101 and the second chamber 1103 can also be adjusted to a certain extent by the gas supply device.

[0147] In some embodiments, a high-precision proportional valve may be connected to the inlet of at least one of the first air nozzle 181, the second air nozzle 182, and the third air nozzle 183, so as to more precisely control the gas flow rate entering the first air nozzle 181, the second air nozzle 182, or the third air nozzle 183, so as to find the maximum damping parameter and further improve the vibration damping effect of the air spring 100.

[0148] The embodiment of the present application also provides a vibration damping system, which includes an air spring. The specific structure of the air spring refers to the above embodiment. Since this vibration damping system adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated herein one by one.

[0149] Among them, the air spring 100 can be the air spring 100 in any of the above embodiments. A gas supply device (not shown in the figure) is connected to the first chamber 1101 and the second chamber 1103 of the air spring 100. The gas supply device is used to provide a constant air pressure to the second chamber 1103, and the gas supply device is also used to adjust the air pressure in the first chamber 1101.

[0150] It should be noted that the gas supply device can include a first gas supply pipeline, which is connected to the first chamber 1101, and the first gas supply pipeline adjusts the air pressure in the first chamber 1101. In addition, the gas supply device further includes a second gas supply pipeline, which is connected to the second chamber 1103 to provide a constant air pressure to the second chamber 1103. Among them, the first gas supply pipeline and the second gas supply pipeline can be independent pipelines, or can be gas supply pipelines connected to the same pump or gas storage tank, as long as they can provide a constant air pressure to the second chamber 1103 and can adjust the air pressure in the first chamber 1101.

[0151] Specifically, the gas supply device can adjust the air pressure in the first chamber 1101 according to the vibration signal applied by the structure to be carried on the air spring 100, so as to filter the low-frequency vibration of the structure to be carried. For example: when the structure to be carried generates low-frequency vibration, the force applied by the structure to be carried on the first bearing member 131 will fluctuate. When the force applied by the structure to be carried on the first bearing member 131 gradually increases, the air pressure in the first chamber 1101 is also increased by the gas supply device. Conversely, when the force applied by the structure to be carried on the first bearing member 131 gradually decreases, the air pressure in the first chamber 1101 is also decreased by the gas supply device, so as to reduce the displacement of the structure to be carried caused by low-frequency vibration, and achieve the filtering of the low-frequency vibration of the structure to be carried.

[0152] The embodiment of the present application also provides a vehicle. The damping system includes an air spring or a damping system. The specific structure of the air spring or the damping system refers to the above embodiments. Since this vehicle adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0153] Among them, the air spring 100 and the damping system can refer to the above embodiments, and will not be elaborated here.

[0154] In the description of the present application, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0155] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0156] The embodiments, implementation manners and related technical features of the present application can be combined and replaced with each other without conflict.

[0157] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. An air spring, characterized in that: include: The main body comprises a first chamber and a second chamber isolated from each other, wherein the first chamber and the second chamber are respectively formed with openings on one side of the main body along a first direction; the first chamber and the second chamber are respectively used to communicate with an air supply device; A capsule skin assembly comprises a first capsule skin and a second capsule skin provided on one side of the main body along the first direction, wherein the first capsule skin and the second capsule skin seal the two openings respectively; The bearing assembly comprises a first bearing member and a second bearing member, wherein the first bearing member is arranged on one side of the first capsule skin along the first direction, and the second bearing member is arranged on one side of the second capsule skin along the first direction.

2. The air spring according to claim 1, characterized in that The second chamber extends along the circumference of the first chamber; and the opening of the second chamber extends along the circumference of the opening of the first chamber.

3. The air spring according to claim 2, characterized in that The air spring further comprises a crimping structure connected to the main body; Wherein, the first bag skin includes a first abutting portion, the first abutting portion abuts against one side of the main body along the first direction; the crimping structure includes a first crimping portion, the first crimping portion is crimped to one side of the first abutting portion along the first direction; and / or, The second bag skin includes a second abutting portion abutting against one side of the main body along the first direction; the crimping structure includes a second crimping portion crimped against one side of the second abutting portion along the first direction.

4. The air spring according to claim 3, characterized in that The crimping structure includes a first crimping piece arranged on one side of the main body along the first direction, the first crimping piece is located between the two openings, the first crimping piece extends along the circumference of the opening of the first chamber, and the first crimping piece includes the first crimping portion and / or the second crimping portion.

5. The air spring according to claim 4, characterized in that The crimping structure further includes a second crimping member disposed on one side of the main body along the first direction, the opening of the second chamber is located between the first crimping member and the second crimping member, and the second crimping member includes the second crimping portion.

6. The air spring according to claim 5, characterized in that A first sealing member is provided between the crimping structure and the first abutting portion; and / or a second sealing member is provided between the crimping structure and the second abutting portion.

7. The air spring according to claim 3, characterized in that: The first capsule skin includes a first sealing portion corresponding to the opening of the first chamber, the first abutting portion is located at an edge of the first sealing portion, and the thickness of at least part of the first abutting portion is greater than the thickness of the first sealing portion; and / or, The second capsule skin includes a second sealing portion corresponding to the opening of the second chamber, the second abutting portion is located at an edge of the second sealing portion, and the thickness of at least part of the second abutting portion is greater than the thickness of the second sealing portion.

8. The air spring according to claim 7, characterized in that The ratio of the thickness of at least part of the first abutting portion to the thickness of the first sealing portion is greater than or equal to 1.5 and less than or equal to 2; and / or, A ratio of a thickness of at least a portion of the second abutting portion to a thickness of the second sealing portion is greater than or equal to 1.5 and less than or equal to 2.

9. The air spring according to claim 7, characterized in that: The maximum thickness of the first abutting portion is greater than or equal to 1.8 mm and less than or equal to 3 mm; and / or the maximum thickness of the second abutting portion is greater than or equal to 1.8 mm and less than or equal to 3 mm.

10. The air spring according to claim 3, wherein: The air spring further includes a limiting structure connected to the main body or the crimping structure; Wherein, the limiting structure comprises a first limiting portion located on one side of the first bearing member along the first direction, the first limiting portion being used to abut against the first bearing member to limit the distance that the first bearing member moves relative to the main body along the first direction; and / or, The limiting structure includes a second limiting portion located at one side of the second bearing member along the first direction, and the second limiting portion is used to abut against the second bearing member to limit the distance that the second bearing member moves relative to the main body along the first direction.

11. The air spring according to any one of claims 1 to 10, characterized in that The bearing assembly further includes a first mounting member and a first fixing member, wherein the first mounting member is located on a side of the first capsule skin facing the first chamber, and the first fixing member passes through the first mounting member and the first capsule skin and is inserted into the first bearing member to fix the first bearing member, the first capsule skin and the first mounting member together; and / or, The supporting assembly also includes a second mounting member and a second fixing member, wherein the second mounting member is located on the side of the second bladder skin facing the second chamber, and the second fixing member passes through the second mounting member and the second bladder skin and is inserted into the second supporting member to fix the second supporting member, the second bladder skin and the second mounting member together.

12. The air spring according to any one of claims 1 to 10, characterized in that The main body further comprises a first damping chamber, the first damping chamber is connected to the first chamber through a first damping hole, and the inner surface of the first damping chamber is provided with a first communicating hole for communicating with the air supply device; and / or, The main body further comprises a second damping chamber, the second damping chamber is communicated with the second chamber through a second damping hole, and a second communicating hole for communicating with the air supply device is formed on the inner surface of the second damping chamber.

13. The air spring according to claim 12, wherein: The first damping cavity and the first chamber are distributed in sequence along the first direction; and / or, The second damping cavity and the second chamber are distributed in sequence along the first direction.

14. The air spring according to claim 12, wherein: The first communication hole is located at a side of the main body away from the bladder skin component, and a first air nozzle communicating with the first communication hole is also provided at a side of the main body away from the bladder skin component; and / or, The second damping chamber extends along the circumference of the first damping chamber; the second connecting hole is located on one side of the main body along a second direction, and the second direction is perpendicular to the first direction; a second air nozzle connected to the second connecting hole is provided on one side of the main body along the second direction.

15. The air spring according to claim 14, wherein: A receiving groove is formed on a side of the main body away from the bladder skin component, and the first air nozzle is received in the receiving groove; and / or, There are multiple second communicating holes, and the multiple second communicating holes are distributed in sequence along the circumference of the main body; each of the second communicating holes is correspondingly provided with the second air nozzle.

16. The air spring according to claim 12, wherein: A third communicating hole is formed on the inner surface of the second chamber, and the third communicating hole is used to communicate with the gas supply device.

17. A vibration reduction system, characterized in that: include: An air spring, wherein the air spring is the air spring according to any one of claims 1 to 16; An air supply device is connected to the first chamber and the second chamber of the air spring. The air supply device is used to provide a constant air pressure to the second chamber, and the air supply device is also used to adjust the air pressure in the first chamber.

18. A vehicle, characterized in that: The air spring comprises any one of claims 1 to 16, or the vibration reduction system comprises claim 17.

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