CN119084511A - Air spring device and vehicle - Google Patents

Abstract

An air spring device and a vehicle are provided. The air spring device comprises a columnar member, a leather bag and a mounting structure, wherein the leather bag and the mounting structure are sleeved on the outer side of the columnar member, the mounting structure is connected with one end of the leather bag, and a support ring is sleeved outside the columnar member and is tightly matched with the columnar member, and the mounting structure is sleeved outside the support ring and is in sliding fit with the support ring and is configured to rotate along the circumferential direction relative to the support ring. Through setting up the sliding fit of mounting structure and backup ring in air spring device, can reduce the torsional force that the leather bag bore, can prolong air spring device's life.

Description

Air spring device and vehicle

Technical Field

At least one embodiment of the present disclosure relates to an air spring device and a vehicle.

Background

The shock absorber is used for buffering up-and-down vibration of the vehicle, and smoothness and comfort of the vehicle are improved. However, when the shock absorber malfunctions, such as abnormal sound, the riding feeling of the vehicle is affected.

Disclosure of Invention

At least one embodiment of the present disclosure provides an air spring device, including a columnar member, a bellows, and a mounting structure, wherein the bellows and the mounting structure are sleeved outside the columnar member, and the mounting structure is connected with one end of the bellows, and a support ring sleeved outside the columnar member and tightly fitted with the columnar member, and wherein the mounting structure is sleeved outside the support ring and slidingly fitted with the support ring, and is configured to rotate in a circumferential direction relative to the support ring.

In the air spring device according to some embodiments of the present disclosure, the mounting structure is separated from a surface of the columnar members facing each other.

In the air spring device according to some embodiments of the present disclosure, the mounting structure includes a mounting member, a first shock absorbing member, and a vibration isolating member that are sequentially connected, the vibration isolating member is in sliding fit with the support ring, and the mounting member and the first shock absorbing member are both spaced apart from the support ring.

In an air spring assembly according to some embodiments of the present disclosure, the material of the first shock absorbing member includes rubber.

In an air spring assembly according to some embodiments of the present disclosure, the mount, the vibration isolator, and the support ring are all plastic members.

In the air spring device according to some embodiments of the present disclosure, the vibration isolating member and at least a portion of the support ring that are in contact with each other are made of the same material.

In an air spring assembly according to some embodiments of the present disclosure, the material of the support ring includes fluoroplastic, nylon, or polyoxymethylene.

In some embodiments of the present disclosure, the vibration isolator has a first contact surface and a first transition surface that are connected to each other and that are further away from the bellows than the first contact surface, the first contact surface is in sliding engagement with the support ring, the first transition surface is disposed at an angle to the first contact surface and is spaced apart from the support ring, and/or the support ring has a second contact surface and a second transition surface that are connected to each other and that are further away from the bellows than the second transition surface, the second contact surface is in sliding engagement with the vibration isolator, and the second transition surface is disposed at an angle to the second contact surface and is spaced apart from the vibration isolator.

In the air spring device according to some embodiments of the present disclosure, a coefficient of friction between the mounting structure and the support ring is smaller than a coefficient of friction between surfaces of the mounting structure and the columnar member that face each other.

In the air spring device according to some embodiments of the present disclosure, the air spring device further includes a first sealing member sleeved outside the columnar member, wherein a side of the mounting structure facing the columnar member has a first protruding portion, a first limiting space is formed between the first protruding portion and the support ring, and the first sealing member is limited in the first limiting space.

In an air spring assembly according to some embodiments of the present disclosure, one of the two surfaces of the support ring that slidably engages the mounting structure is configured as a discontinuous surface.

In the air spring device according to some embodiments of the present disclosure, the air spring device further includes a head assembly, which is sleeved outside the columnar member and includes an end cover, a mounting seat, and a bearing, wherein the mounting seat is connected to an end of the bellows, which is far away from the mounting structure, and the bearing is located between the mounting seat and the end cover.

In an air spring assembly according to some embodiments of the present disclosure, the end cap includes a first portion, a second portion, and a second shock absorbing member disposed between the first portion and the second portion, the bearing being located between the second portion and the mount.

In the air spring assembly according to some embodiments of the present disclosure, the material of the second shock absorbing member includes rubber.

In an air spring assembly according to some embodiments of the present disclosure, the bearing is a deep groove ball bearing.

In the air spring device according to some embodiments of the present disclosure, the columnar member includes a piston rod and a cylinder connected to each other, the mounting structure is sleeved on the cylinder, and the head assembly is sleeved on the piston rod.

In the air spring device according to some embodiments of the present disclosure, the air spring device further includes a piston that is sleeved on the cylinder and connects one end of the bellows with the mounting structure.

In the air spring device according to some embodiments of the present disclosure, the air spring device further comprises a flange provided outside the cylinder in a circumferential direction, and the air spring device further comprises a support member, wherein the support member is provided between the mounting structure and the flange and slidingly engages with the mounting structure.

According to at least one embodiment of the disclosure, a vehicle is provided comprising an air spring device according to any one of the embodiments described above.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure, not to limit the present disclosure.

FIG. 1 is a cross-sectional view of an air spring assembly according to some embodiments of the present disclosure.

Fig. 2 is a partial enlarged view at a of the structure shown in fig. 1.

Fig. 3 is a partial enlarged view at B of the structure shown in fig. 1.

Reference numerals illustrate:

100. Air spring device 110, columnar member 111, piston rod 112, cylinder 113, flange 120, bellows 130, mounting structure 131, mounting piece 1311, second protrusion 132, first damper 133, vibration isolator 133a, first contact surface 133b, first transition surface 1331, first protrusion 140, support ring 150a, first seal 150b, second seal 160, head assembly 161, end cap 1611, first portion 1612, second portion 1613, second damper 162, mounting seat 163, bearing 164, third damper 170, piston 180, dust cover 190, protective housing Z1, first limit space Z2, second limit space.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.

The air spring is a core unit of the air suspension system, which is to charge compressed air into a sealed container, and to realize its elastic action by utilizing the air compressibility, thereby improving the running smoothness of the vehicle. In research, the inventors of the present disclosure found that when the vehicle turns or travels in a curve, the air spring experiences both shear and torsional displacement in the lateral direction in addition to the static load from the vertical body. When the torsion angle is too large, fatigue damage and even damage can be caused to the leather bag of the air spring, so that the service life of the whole air spring is influenced, and the smoothness of the vehicle is difficult to improve. In addition, when the air spring bears torque load, most parts are made of metal, so that abnormal noise is often generated due to friction among the parts, and riding comfort is affected.

At least one embodiment of the present disclosure provides an air spring device, including a columnar member, a bellows, and a mounting structure, wherein the bellows and the mounting structure are sleeved outside the columnar member, and the mounting structure is connected with one end of the bellows, and a support ring sleeved outside the columnar member and tightly fitted with the columnar member, and wherein the mounting structure is sleeved outside the support ring and slidingly fitted with the support ring, and is configured to rotate in a circumferential direction relative to the support ring. In the air spring device according to the embodiment of the present disclosure, the mounting structure between the bellows and the columnar member is rotatable with respect to the support ring outside the columnar member. When the air spring device is subjected to torsion force, the leather bag can rotate relative to the columnar member along with the rotation of the mounting structure relative to the support ring due to the tight fit of the support ring and the columnar member. Through the structure, the torsion force born by the leather bag is reduced, and the service life of the air spring device is prolonged. In addition, through the sliding friction between mounting structure and the holding ring, reduced the frictional force between the part, reduced the abnormal sound that friction produced between the part.

The air spring device and the vehicle of the present disclosure will be described in more detail below in conjunction with some embodiments, so that the technical solutions according to the present disclosure, and advantages and technical effects thereof, will be more apparent.

Fig. 1 is a cross-sectional view of an air spring assembly according to some embodiments of the present disclosure, and fig. 2 is an enlarged partial view of a structure a shown in fig. 1.

As shown in fig. 1 and 2, the bellows 120 and the mounting structure 130 are sleeved outside the columnar member 110, and the mounting structure 130 is connected to one end of the bellows 120. It will be appreciated that the mounting structure 130 may be attached to one end of the bladder 120 either directly or by other means, as will be described in more detail below. The support ring 140 is sleeved outside the columnar member 110 and is tightly matched with the columnar member 110. For example, the support ring 140 and the columnar member 110 may be an interference fit. The mounting structure 130 is sleeved outside the support ring 140, is in sliding fit with the support ring 140, and is configured to rotate relative to the support ring 140 in a circumferential direction. For example, the mounting structure 130 and the support ring 140 may be a clearance fit. For another example, the coefficient of friction between the support ring 140 and the mounting structure 130 is less than the coefficient of friction between the support ring 140 and the columnar member 110. Thus, when the air spring device 100 is subjected to a torsion force, rotation between the support ring 140 and the mounting structure 130 is achieved due to a smaller friction force between the support ring 140 and the mounting structure 130. However, according to the embodiment of the present disclosure, not limited thereto, since the support ring 140 and the column member 110 are interference-fitted, the support ring 140 and the column member 110 have a large pressure therebetween, and a large friction force may be generated. In this case, the support ring 140 and the mounting structure 130 can be secured to each other.

According to some embodiments of the present disclosure, the mounting structure 130 between the bladder 120 and the columnar member 110 is rotatable relative to the support ring 140 outside the columnar member 110. When the air spring device 100 is subjected to a torsional force, the bellows 120 is able to rotate relative to the columnar member 110 as the mounting structure 130 rotates relative to the support ring 140 due to the support ring 140 being in close fit with the columnar member 110. With this structure, the torsion force borne by the bellows 120 is reduced, and the service life of the air spring device 100 is prolonged. In addition, by sliding friction between the mounting structure 130 and the support ring 140, friction between the components is reduced, and abnormal noise generated by friction between the components is reduced.

For example, the mounting structure 130 is separated from the surface of the columnar member 110 facing each other. When the mounting structure 130 and the support ring 140 relatively rotate, the support ring 140 is supported between the mounting structure 130 and the columnar member 110 such that the surfaces thereof are separated, and only one side surface of the mounting structure 130 facing the columnar member 110 is in contact with the support ring 140, that is, only a friction force is generated between the surfaces of the mounting structure 130 and the support ring 140. Thereby, friction force upon rotation is reduced by a smaller contact area. Of course, the surfaces of the mounting structure 130 and the columnar member 110 facing each other may also be in contact, as will be described in detail in some embodiments later.

Referring to fig. 2, for example, the mounting structure 130 includes a mounting member 131, a first shock absorbing member 132, and a vibration isolating member 133, which are sequentially connected. The first damper 132 connected between the mount 131 and the vibration isolator 133 can absorb shock from external force, and can also reduce abnormal sound generated by impact when external force is applied between the components. The vibration isolating member 133 is slidably engaged with the support ring 140, and the mounting member 131 and the first vibration absorbing member 132 are each spaced apart from the support ring 140. During rotation, since neither the mounting member 131 nor the first vibration absorbing member 132 is in contact with the support ring 140, only the vibration isolating member 133 is in contact with the support ring 140, reducing the contact area, thereby reducing the sliding friction.

For example, the material of the first shock absorbing member 132 includes rubber. The rubber can bear instantaneous larger deformation, so that the rubber can bear larger impact force and has better buffering performance. Of course, the material of the first shock absorbing member may also include other materials capable of cushioning shock absorption, which is not limited herein.

For example, the mount 131, the vibration isolator 133, and the support ring 140 are all plastic members. Considering that the abnormal sound generated by the collision between the metal members is large, the vibration isolation member 133 and the supporting ring 140 are both plastic members, that is, both surfaces in contact with each other are plastic during the collision or rotation, so that the abnormal sound can be improved. In addition, the friction between the plastic members is also relatively smaller.

For example, the mounting member 131, the first vibration absorbing member 132, and the vibration isolating member 133 are integrally formed, thereby improving the reliability of the mounting structure 130. For example, the mounting member 131 and the vibration isolating member 133 may be vulcanized together with the first vibration absorbing member 132, respectively, to form an integrated structure. However, the embodiments according to the present disclosure are not limited thereto, and at least part of the above structures may be separately manufactured and then assembled.

For example, the vibration isolating member 133 and at least the portion of the support ring 140 that are in contact with each other are made of the same material, thereby reducing the friction coefficient between the contact surfaces and reducing the friction force. In some examples, vibration isolator 133 is formed of the same material as support ring 140. For example, the material of the support ring comprises fluoroplastic, nylon or polyoxymethylene, and the material has the characteristics of low friction coefficient and good wear resistance, and can reduce friction between the contact part of the support ring and the mounting structure. Of course, the material of the support ring may also include other friction reducing materials, and embodiments of the present disclosure are not limited thereto.

For example, in the embodiment shown in fig. 1 and 2, the vibration insulators 133 and the support rings 140 are plastic members. For example, the support ring 140 may also be a friction reducing coating applied to the outer peripheral wall of the columnar member 110. For example, the support ring is a metal member, and a side surface of the support ring facing the vibration isolator is coated with a friction reducing coating. For example, the vibration isolator is a metal member, and a side surface of the vibration isolator facing the support ring is coated with a friction reducing coating. For example, materials for the friction reducing coating include fluoroplastic, nylon, polyoxymethylene, graphite, ceramic, metal sulfide, metal oxide, and the like, without limitation. For example, the friction reducing coating may be a continuous coating or a discontinuous coating.

For example, referring to fig. 2 in combination with fig. 1, vibration isolator 133 has a first contact surface 133a and a first transition surface 133b that are connected to each other, with first transition surface 133b being farther from bladder 120 than first contact surface 133 a. The first contact surface 133a is slidably engaged with the support ring 140, and the first transition surface 133b is disposed at an angle to the first contact surface 133a and separated from the support ring 140. The first transition surface 133b is separated from the support ring 140, so that the vibration isolation member 133 is only contacted with the support ring 140 through the first contact surface 133a, the contact area between the first contact surface and the support ring is smaller, and the friction force is smaller. In addition, the opening area of the side of the vibration isolator 133 remote from the bellows 120 can be increased by the first transition surface 133b, so that the assembly between the vibration isolator 133 and the support ring 140 can be more easily achieved. For example, the first transition surface 133b is a sloping surface. For example, the first transition surface is a curved surface and smoothly transitions with the first contact surface.

In other embodiments, the support ring has a second contact surface (not shown) and a second transition surface (not shown) that are connected to each other, and the second contact surface is further from bladder 120 than the second transition surface. The second contact surface is in sliding engagement with the vibration isolation member 133, and the second transition surface is disposed at an angle to the second contact surface and is spaced apart from the vibration isolation member 133. The second transition surface is separated from the vibration isolation member 133, so that the support ring 140 contacts the vibration isolation member 133 only through the second contact surface, and the contact area between the second transition surface and the vibration isolation member is smaller, and the friction force is smaller. In addition, the radial dimension of the side of the support ring near the bellows 120 can be reduced by the second transition surface, so that the assembly between the vibration isolation member 133 and the support ring can be more easily achieved. For example, the second transition surface is a sloping surface. For example, the second transition surface is a curved surface and smoothly transitions with the second contact surface.

For example, the coefficient of friction between the mounting structure and the support ring is smaller than the coefficient of friction between the mounting structure and the surface of the columnar member facing each other. When the leather bag and the columnar member rotate by means of the mounting structure and the supporting ring, the friction coefficient between the supporting ring and the mounting structure is smaller, and the friction force is smaller, so that the friction force generated during rotation is reduced. When the mounting structure is in contact with the columnar member (not shown in the figure), the contact surface between the mounting structure and the columnar member of the corresponding portion is replaced by the contact surface between the support ring and the mounting structure, so that the friction force can be reduced to some extent. In the case of separation between the mounting structure 130 and the columnar member 110, reference is made to fig. 1 and 2 and the contents of the foregoing embodiments, and details thereof will not be repeated here.

In some embodiments according to the present disclosure, the air spring device further comprises a first seal member sleeved outside the columnar member. For example, the first seal is an O-ring seal. One side of the mounting structure, which faces the columnar component, is provided with a first protruding part, a first limiting space is formed between the first protruding part and the support ring, and the first sealing piece is limited in the first limiting space. The first spacing space between the first bulge and the support ring enables the first sealing piece to be reliably spacing, so that the sealing effect between the mounting structure and the columnar member is improved. As shown in fig. 1 and 2, the first protrusion 1331 is disposed on the vibration isolation member 133, so that a first spacing space Z1 with a smaller space is formed between the first protrusion and the support ring 140, and the spacing effect on the first sealing member 150a is better.

For example, one of the two surfaces of the support ring that slidably engages the mounting structure is configured as a discontinuous surface (not shown) such that the contact area between the support ring and the mounting structure is smaller and the friction is smaller. It will be appreciated that a discontinuous surface means that the support ring and the mounting structure are not entirely circumferentially conformed to each other between the two surfaces thereof, with a gap between circumferentially adjacent portions of contact therebetween. For example, the surface of the support ring facing the mounting structure is configured as a partial bulge, by which the raised portion is in contact with the mounting structure for a sliding fit. For example, the surface of the mounting structure facing the support ring is configured as a partial protrusion, with the protruding portion being in contact with the support ring for a sliding fit.

Fig. 3 is a partial enlarged view at B of the structure shown in fig. 1. Referring to fig. 3 in combination with fig. 1, for example, air spring assembly 100 further includes a head assembly 160, head assembly 160 being sleeved outside of columnar structure 110 and including an end cap 161, a mount 162, and a bearing 163. Mount 162 is connected to an end of bladder 120 remote from mounting structure 130, and bearing 163 is located between mount 162 and end cap 161. The bearing 163 can be used to realize the relative rotation between the end cover 161 and the mounting seat 162, and further realize the relative rotation between the end cover 161 and the leather bag 120. In combination with the foregoing embodiments, the axially opposite ends of the air spring assembly 100 are capable of rotating, reducing the torsional forces experienced by the bellows 120, and extending the service life of the air spring assembly 100.

For example, the bearing 163 is a deep groove ball bearing. The deep groove ball bearing has a small friction coefficient, so that the rotation between the end cover 161 and the mounting seat 162 can be smoother. When a torsional force is applied to the end cap 161, the force transferred by the mount 162 to the bladder 120 can be reduced by means of the bearing 163, reducing the risk of damaging the bladder 120. In addition, the deep groove ball bearing can reduce abnormal sound generated by collision or friction of components during rotation.

Referring to fig. 3, for example, end cap 161 includes a first portion 1611, a second portion 1612, and a second shock absorbing member 1613, with second shock absorbing member 1613 disposed between first portion 1611 and second portion 1612, and bearing 163 positioned between second portion 1612 and mount 162. The second shock absorbing member 1613 between the first portion 1611 and the second portion 1612 can absorb shock from an external force, and can also reduce abnormal sounds generated by an impact when the external force is applied between the components. For example, the second shock absorbing member 1613 is completely coated on the first portion 1611 and the second portion 1612, thereby enhancing the shock absorbing effect. For example, the material of second shock absorbing member 1613 includes rubber. Of course, the material of second shock absorbing member 1613 may also include other materials capable of cushioning shock absorption, without limitation. For another example, the first portion 1611, the second shock absorbing member 1613, and the second portion 1612 are a unitary structure, thereby improving reliability of the end cap 161. For example, the first portion 1611 and the second portion 1612 are vulcanized together with the second shock absorbing member 1613, respectively, to form a unitary structure. However, the embodiments according to the present disclosure are not limited thereto, and at least part of the above structures may be separately manufactured and then assembled.

Referring to fig. 1, for example, a cylinder member 110 includes a piston rod 111 and a cylinder 112 connected to each other, a mounting structure 130 is sleeved on the cylinder 112, and a head assembly 160 is sleeved on the piston rod 111. For example, the piston rod 111 is partially inserted into the cylinder 112, and both can be moved relative to each other in the axial direction. For example, mounting structure 130 is spaced opposite head assembly 160.

In some embodiments, the air spring assembly 100 further includes a piston 170, the piston 170 being disposed over the cylinder 112 and connecting one end of the bladder 120 to the mounting structure 130. For example, the piston 170 is an aluminum piston.

As shown in connection with fig. 1 and 2, for example, the air spring device 100 also includes a second seal 150b. For example, the second seal 150b is an O-ring seal. The side of the mounting member 131 away from the vibration isolation member 133 has a second protrusion 1311, a second limiting space Z2 is formed between the second protrusion 1311 and the piston 170, and the second sealing member 150b is limited in the second limiting space Z2. The second spacing space Z2 between the second protrusion 1311 and the piston 170 enables the second seal 150b to be reliably spacing, thereby improving the sealing effect between the columnar member 110 and the piston 170.

Referring to fig. 1, for example, head assembly 160 further includes a third shock absorbing member 164, third shock absorbing member 164 being disposed between piston rod 111 and mount 162. The third damper 164 between the piston rod 111 and the mount 162 can absorb shock by buffering external force, and can also reduce abnormal sound generated by impact when external force is applied between the components. For example, the material of the third shock absorbing member 164 includes rubber. Of course, the material of the third shock absorbing member may also include other materials capable of cushioning shock absorption, which is not limited herein.

With continued reference to FIG. 1, for example, the air spring assembly 100 further includes a flange 113 disposed circumferentially about the cylinder 112, the flange 113 being capable of providing a mounting location for the mounting structure 130. The air spring device 100 also includes a support (not shown). The support is disposed between the mounting structure 130 and the flange 113 and is in sliding engagement with the mounting structure 130. Upon relative rotation between the cylinder 112 and the bladder 120, the relative sliding between the mounting structure 130 and the support may reduce the friction of each other.

For example, the material of the support member may include fluoroplastic, nylon, or polyoxymethylene, which has a low coefficient of friction and good wear resistance, and may reduce friction between the contact portion of the support member and the mounting structure 130. Of course, the material of the support may also include other friction reducing materials, and embodiments of the present disclosure are not limited thereto. For example, in connection with some of the foregoing embodiments, the support member and the support ring 140 may also be of a unitary structure, such as a unitary injection molding, without limitation.

For example, the support may be a coating applied to the surface of the flange facing axially towards the mounting structure. For example, the support is a metal member, and a side surface of the support facing the vibration isolator is coated with a friction reducing coating. For example, the vibration isolator is a metal member, and a side surface of the vibration isolator facing the support is coated with a friction reducing coating. For example, materials for the friction reducing coating include fluoroplastic, nylon, polyoxymethylene, graphite, ceramic, metal sulfide, metal oxide, and the like, without limitation. For example, the friction reducing coating may be a continuous coating or a discontinuous coating.

Referring to FIG. 1, for example, the air spring assembly 100 further includes a dust cap 180 and a protective housing 190 coupled to each other. The dust cap 180 is disposed around the piston 170 and is coupled to the head assembly 160 to reduce the ingress of dust. For example, the dust cap 180 is a bellows. The protective casing 190 is sleeved outside the bellows 120 and connected to the mounting structure 130, so as to protect the bellows 120 and prolong the service life of the air spring device 100. In addition, the shield shell 190 can also guide the bellows 120 when it is elastically deformed.

The vehicle according to the embodiment of the present disclosure includes the air spring device of any of the above embodiments, and thus, has various technical effects and advantages described in the above embodiments, which are not described herein.

The following points need to be described:

(1) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to the general design.

(2) Features of the same and different embodiments of the disclosure may be combined with each other without conflict.

The foregoing is merely exemplary embodiments of the present disclosure and is not intended to limit the scope of the disclosure, which is defined by the appended claims.

Claims (19)

1. An air spring assembly comprising:

The leather bag comprises a columnar member, a leather bag and a mounting structure, wherein the leather bag and the mounting structure are sleeved outside the columnar member and are connected with one end of the leather bag, and

The support ring is sleeved outside the columnar member and is in tight fit with the columnar member;

The mounting structure is sleeved outside the support ring, is in sliding fit with the support ring and is configured to rotate relative to the support ring in the circumferential direction.

2. The air spring assembly of claim 1, wherein the mounting structure is separated from a surface of the columnar members that faces each other.

3. The air spring assembly of claim 2 wherein said mounting structure includes a mounting member, a first shock absorbing member and a vibration isolating member connected in sequence, said vibration isolating member being in sliding engagement with said support ring, and said mounting member and said first shock absorbing member being spaced apart from said support ring.

4. The air spring assembly of claim 3 wherein the material of said first shock absorbing member comprises rubber.

5. The air spring assembly of claim 3 wherein said mounting member, said vibration isolator and said support ring are all plastic members.

6. The air spring assembly according to claim 3, wherein said vibration isolator is the same material as at least the portions of said support ring that contact each other.

7. The air spring assembly of claim 6, wherein the material of the support ring comprises fluoroplastic, nylon, or polyoxymethylene.

8. The air spring assembly of claim 3 wherein said vibration isolator has a first contact surface and a first transition surface connected to each other and further away from said bellows than said first contact surface, said first contact surface being in sliding engagement with said support ring, said first transition surface being disposed at an angle to said first contact surface and spaced apart from said support ring, and/or

The support ring is provided with a second contact surface and a second transition surface which are connected with each other, the second contact surface is far away from the leather bag than the second transition surface, the second contact surface is in sliding fit with the vibration isolation piece, and the second transition surface is arranged at an angle with the second contact surface and is separated from the vibration isolation piece.

9. The air spring assembly of claim 1, wherein a coefficient of friction between the mounting structure and the support ring is less than a coefficient of friction between surfaces of the mounting structure and the columnar members that face each other.

10. The air spring assembly of any one of claims 1-9, further comprising a first seal member sleeved outside the columnar member;

The mounting structure is provided with a first protruding portion towards one side of the columnar member, a first limiting space is formed between the first protruding portion and the support ring, and the first sealing element is limited in the first limiting space.

11. The air spring assembly of any one of claims 1-9, wherein one of the two surfaces of the support ring that slidably engages the mounting structure is configured as a discontinuous surface.

12. The air spring assembly of any one of claims 1-9, further comprising a head assembly, the head assembly being sleeved outside the columnar member and comprising an end cap, a mount, and a bearing;

the mounting seat is connected with one end, far away from the mounting structure, of the leather bag;

The bearing is located between the mount and the end cap.

13. The air spring assembly of claim 12 wherein said end cap includes a first portion, a second portion and a second shock absorbing member, said second shock absorbing member being disposed between said first portion and said second portion, said bearing being located between said second portion and said mounting.

14. The air spring assembly of claim 13, wherein the material of the second shock absorbing member comprises rubber.

15. The air spring assembly of claim 12, wherein the bearing is a deep groove ball bearing.

16. The air spring assembly according to claim 12, wherein said columnar member includes a piston rod and a cylinder connected to each other, said mounting structure is sleeved on said cylinder, and said head assembly is sleeved on said piston rod.

17. The air spring assembly of claim 16, further comprising a piston that fits over the cylinder and connects one end of the bladder to the mounting structure.

18. The air spring assembly according to claim 16, further comprising a flange circumferentially disposed about said cylinder, said air spring assembly further comprising a support;

wherein the support member is disposed between the mounting structure and the flange and is in sliding fit with the mounting structure.

19. A vehicle comprising an air spring device according to any one of claims 1-18.