CN215705528U - Air spring supporting structure - Google Patents

Abstract

The utility model provides an air spring supporting structure which comprises a core body assembly and an end cover assembly, wherein the core body assembly comprises a first ring body and a second ring body connected to one end of the first ring body, the first ring body is used for installing a shock absorber rod, the second ring body is used for connecting an air bag, an included angle is formed between the center line of the installed shock absorber rod and the center line of the second ring body, the end cover assembly is rotatably connected to the first ring body through a rotating part, and a connecting part used for being connected with an external component is arranged on the end cover assembly. The air spring supporting structure can reduce the lateral force and the torsional force born by the air bag in the steering process, thereby being beneficial to prolonging the service life of the air spring and having better use effect.

Description

Air spring supporting structure

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to an air spring supporting structure.

Background

Along with the continuous development of automobile technology, the requirements of people on automobiles are gradually changed from the previous tools for riding comfort and operation stability, the traditional automobile suspension can not meet the requirements of people at the present stage, and because suspension parameters are not adjustable, the rigidity of a spiral spring is not variable, the optimal performance is achieved only under the specific road state and the driving speed, and the comfort and the operation stability can not be considered.

In order to solve the problem that the comfort and the operation stability of the whole vehicle are not considered, the air spring can be used for replacing a spiral spring, and the rigidity of the suspension can be adjusted by utilizing the nonlinear rigidity characteristic of the air spring, so that the optimization of the comfort and the operation stability is achieved. The air spring assembly generally includes an air bag, an upper support structure for connecting the vehicle body to the air spring and providing a snap-fit mounting location for the air bag, a piston, a snap ring, a bumper, an air fitting, and the like. The existing air spring assembly is unreasonable in structural design, large in torsional force and lateral force borne by the air bag, short in service life of the air bag, large in occupied space and poor in using effect.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to an air spring support structure capable of reducing lateral force and torsion force applied to an air bag during steering.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

an air spring support structure includes a core assembly and an end cap assembly, wherein,

the core assembly comprises a first ring body and a second ring body connected to one end of the first ring body;

the first ring body is used for installing a shock absorber rod, the second ring body is used for connecting an air bag, and the center line of the shock absorber rod after installation and the center line of the second ring body form an included angle;

the end cover assembly is rotatably connected to the first ring body through the rotating part, and a connecting part used for being connected with an external component is arranged on the end cover assembly.

Furthermore, one end part of the second ring body, which is connected with the air bag, is arranged in an inclined shape; a groove is formed in the outer peripheral wall of the second ring body; the gasbag cover is located on the periphery wall of second ring body, and in be equipped with on the second ring body and be used for fastening tighten the piece of gasbag.

Furthermore, a limiting boss is arranged on the second ring body; the limiting boss is used for limiting the air bag which is sleeved with the limiting boss.

Furthermore, a connecting end plate is arranged on the second ring body, and a limiting plate is covered on the connecting end plate; the first ring body is fixedly connected to the connecting end plate in an inserted mode, and an apex and a buffer block are arranged in the first ring body; the shock absorber rod penetrates through the buffer block and the top rubber and is fixedly connected to the top rubber.

Further, an inflation hole is formed in the second ring body; the inflation hole is used for inflating the connected air bag; and an inflation pipe is connected at the inflation hole.

Further, the inflation tube is wound on the first ring body; the inflation hole penetrates through the limiting plate and the connecting end plate together and is connected with the inflation tube.

Furthermore, a limiting part is arranged on the limiting plate; the limiting part is used for limiting the outward expansion of the diameter of the inflation pipe in winding arrangement.

Further, the limiting part comprises two limiting blocks arranged on the limiting plate; the included angle between the two limiting blocks and the central connecting line of the second ring body is larger than the rotation angle of the end cover assembly relative to the first ring body.

Further, the end cap assembly comprises a dust cover and a cap body; the cover body is covered on the dust cover, and the inflation tube is accommodated in the dust cover; the connecting part is a connecting bolt arranged by penetrating the dust cover and the cover body, and the dust cover and the cover body are fixedly connected together through the connecting bolt; and a communication port for connecting the inflation tube is arranged on the side wall of the dust cover.

Further, the rotating part is a bearing arranged between the core body assembly and the end cover assembly.

Compared with the prior art, the utility model has the following advantages:

(1) according to the air spring supporting structure, the end cover assembly is rotatably connected relative to the first ring body, so that the frequency and the angle of torsion of the air bag can be reduced in the steering process, the lateral force and the torsion force borne by the air bag in the steering process can be reduced, and the service life of the air spring can be prolonged.

(2) The end part provided with the second ring body is inclined, so that the inclined arrangement and installation of the air bag are facilitated. In addition, the groove formed in the outer peripheral wall of the second ring body is beneficial to increasing the contact area between the air bag and the second ring body, and the risk of the air bag falling off can be reduced.

(3) Set up spacing boss on the second ring body, help improving the installation accuracy of gasbag.

(4) The arranged inflation hole and the inflation tube can be convenient for inflating the air bag.

(5) The limiting part arranged on the limiting plate can limit the outward expansion of the winding inflation tube along the radial direction.

(6) The limiting part adopts a limiting block, so that the structure is simple, and the processing and the manufacturing are convenient.

(7) The dust cover that sets up can do benefit to accomodating of gas tube on the one hand, and on the other hand can effectively prevent the entering of debris, and can play better dustproof effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of an air spring assembly having an air spring support structure according to an embodiment of the present invention;

FIG. 2 is a front view of an air spring support structure according to an embodiment of the present invention;

FIG. 3 is a top view of an air spring support structure according to an embodiment of the present invention;

FIG. 4 is a sectional view A-A of FIG. 3;

FIG. 5 is a schematic structural diagram of a core assembly according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an end cap assembly according to an embodiment of the present invention;

fig. 7 is a front view of a limiting plate according to an embodiment of the utility model;

fig. 8 is a left side view of a limiting plate according to an embodiment of the utility model;

FIG. 9 is a schematic structural view of an inflation tube according to an embodiment of the present invention;

description of reference numerals:

1. a core assembly; 100. an inflation hole; 101. a first ring body; 102. a second ring body; 103. connecting the end plates; 104. a limiting plate; 1011. a bearing locating end; 1012. a first mounting groove; 1013. a second mounting groove; 1021. a groove; 1041. a limiting block;

2. an end cap assembly; 201. a dust cover; 202. a cover body; 203. a connecting bolt; 204. a communication port; 205. installing a sleeve;

3. carrying out glue jacking; 4. a buffer block; 5. an air bag; 6. a piston; 7. a damper rod; 8. a damper sleeve; 9. buckling and pressing a ring; 10. an inflation tube; 11. a bearing; 12. a sealing cover; 13. a clamp spring; 14. a seal ring; 15. and locking the nut.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inside", "outside", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The present embodiment relates to an air spring support structure, which mainly includes a core assembly 1 and an end cap assembly 2 in an integral structure. The core assembly 1 includes a first ring 101 and a second ring 102 connected to one end of the first ring 101. The first ring body 101 is used for installing the shock absorber rod 7, the second ring body 102 is used for connecting the air bag 5, and the center line of the installed shock absorber rod 7 and the center line of the second ring body 102 form an included angle. The end cover assembly 2 is rotatably connected to the first ring body 101 through a rotating part, and a connecting part for connecting with an external component is arranged on the end cover assembly 2.

According to the structure, the torsion frequency and angle of the air bag 5 can be reduced in the steering process of the air spring, so that the lateral force and the torsion force borne by the air bag 5 in the steering process can be reduced, and the service life of the air spring is prolonged.

Based on the above design concept, an exemplary structure of the air spring support structure of the present embodiment is shown in fig. 2 to 4, wherein fig. 1 shows an application state of the air spring support structure, that is, a structure of an air spring assembly. As shown in fig. 1, the air spring support structure of this embodiment is located at the upper end of the air bag 5, and the air spring assembly further includes an air bag piston 6 located at the lower end of the air bag 5 in an eccentric shape, a damper sleeve 8 is installed in the air bag piston 6, and a damper rod 7 installed in the first ring body 101 is sealingly inserted in the damper sleeve 8.

It should be noted that the airbag piston 6 and the damper sleeve 8 are all of the prior art structure, and the connection between the damper rod 7 and the damper sleeve 8 and the connection between the lower end of the airbag 5 and the airbag piston 6 are all of the prior art structure, which will not be described again.

As described above, the air spring support structure includes the core assembly 1 and the end cap assembly 2, wherein the core assembly 1 of the present embodiment includes the first ring 101 for mounting the shock absorber rod 7, and the second ring 102 for connecting the air bag 5, the second ring 102 is connected to one end of the first ring 101, and the center line of the mounted shock absorber rod 7 is disposed at an angle to the center line of the second ring 102.

In order to improve the inclined installation effect and the installation accuracy of the airbag 5, in the embodiment, as shown in fig. 1, 2 and 4, one end portion of the second ring body 102 connected to the airbag 5 is arranged in an inclined manner, so that the airbag 5 can be obliquely installed on the second ring body 102. Meanwhile, a plurality of grooves 1021 are formed in the outer peripheral wall of the second ring body 102, and the air bag 5 is sleeved in the grooves 1021 in the outer peripheral wall of the second ring body 102 and is fixedly connected to the second ring body 102 through a tightening member. Through the recess 1021 that sets up on the second ring body 102 periphery wall, be favorable to increasing the area of contact between gasbag 5 and the second ring body 102 to can reduce the risk that gasbag 5 deviates from, thereby can improve the reliability of gasbag 5 installation.

It should be noted that, in addition to the above-mentioned structure, in order to realize the inclined installation of the airbag 5, the central axis of the second ring body 102 and the central axis of the first ring body 101 may intersect at a point in space, that is, the central axis of the second ring body 102 and the central axis of the first ring body 101 form an included angle therebetween. In addition, the shape of the recess 1021 can be a rectangular groove or a tooth-like structure. The tightening member is preferably a snap ring 9 to facilitate the tightening of the balloon 5 to the outer peripheral wall of the second ring 102.

As a further improvement of this embodiment, in this embodiment, a limiting boss is provided on the second ring 102, and the limiting boss is used for limiting the airbag 5 which is sleeved on. Specifically, as shown in fig. 4, the stopper boss is constituted by an edge of a connection end plate 103 described below, and a dimension h between an outer peripheral surface of the stopper boss and an outer peripheral surface of the second ring 102 (hereinafter simply referred to as an installation depth) is larger than a thickness of the airbag 5.

When the installation is concrete, the one end of gasbag 5 supports tightly on this spacing boss to fasten on second ring body 102 through withholding ring 9, and owing to set up the thickness that the installation depth is greater than gasbag 5, can further improve the installation effect of gasbag 5, thereby can prevent the pine of gasbag 5 or leak gas.

In this embodiment, the second ring body 102 is provided with a connection end plate 103, and the connection end plate 103 is covered with a limiting plate 104, as shown in fig. 4 and 5 in combination with fig. 1, the limiting plate 104 is attached to and covered on the connection end plate 103, and the limiting plate 104 is fixedly connected with the connection end plate 103. The first ring body 101 is fixedly connected to the connecting end plate 103 in an inserted manner, and a top rubber 3 and a buffer block 4 are arranged in the first ring body 101. The shock absorber rod 7 passes through the buffer block 4 and the top rubber 3 and is fixedly connected to the top rubber 3.

It should be noted that the above-mentioned buffer block 4 and the top rubber 3 are both of the conventional mature structure. The buffer block 4 is clamped at the bottom end of the first ring body 101, the top rubber 3 is connected in the first ring body 101 in an interference mode, one end of the shock absorber rod 7 penetrates through the buffer block 4 and the top rubber 3 in sequence, and is fastened at the end portion of the shock absorber rod 7 through the locking nut 15, and therefore the shock absorber rod 7 is fixedly connected with the top rubber 3.

In this embodiment, as shown in fig. 1 and fig. 2 in combination with fig. 4 to fig. 9, the second ring 102 is provided with an inflation hole 100, the inflation hole 100 is used for inflating the connected airbag 5, and an inflation tube 10 is connected to the inflation hole 100. Specifically, the inflation tube 10 is wound around the first ring 101, the inflation hole 100 penetrates through the limiting plate 104 and the connecting end plate 103, one end of the inflation tube 10 is connected to the inflation hole 100, and the other end of the inflation tube can be connected to an air source to inflate the airbag 5.

In order to prevent the winding-shaped inflation tube 10 from expanding outward in the radial direction during the inflation process of the airbag 5, in this embodiment, a limiting portion is disposed on the limiting plate 104, and the winding-shaped inflation tube 10 is limited from expanding outward in the radial direction by the limiting portion. In a specific structure, as shown in fig. 5, fig. 7 and fig. 8, the limiting portion includes two limiting blocks 1041 disposed on the limiting plate 104, and an included angle α between a central connecting line of the two limiting blocks 1041 and the second ring 102 is greater than a rotation angle of the end cover assembly 2 relative to the first ring 101.

It should be noted that, besides the limiting block 1041, the limiting portion may also adopt other structures capable of preventing the inflation tube 10 from radially expanding outward, such as a limiting column and a limiting plate. In addition, the limiting block 1041 may be fixed to the limiting plate 104 by welding or riveting, or may be integrally formed with the limiting plate 104. In this embodiment, the limiting block 1041 is preferably a limiting flange integrally formed on the limiting plate 104.

In addition, it should be further noted that, the first ring body 101 of the present embodiment may be manufactured by machining or casting aluminum alloy, the second ring body 102 may also be manufactured by machining, the limiting plate 104 is formed by stamping a thin plate, and the first ring body 101, the second ring body 102 and the limiting plate 104 are preferably fixedly connected together by welding.

As a preferred embodiment of the present embodiment, the end cap assembly 2 of the present embodiment is rotatably connected to the first ring body 101 through a rotating portion, and the end cap assembly 2 is provided with a connecting portion for connecting with an external member. The external component can be a vehicle body or other components needing to be connected with the air spring.

In a specific structure, the end cap assembly 2 of the present embodiment includes a dust cover 201 and a cap 202, wherein the cap 202 covers the dust cover 201, and the inflation tube 10 is received in the dust cover 201. Therefore, on one hand, the storage of the inflation tube 10 can be facilitated, on the other hand, the entering of sundries can be effectively prevented, and a better dustproof effect can be achieved. The connection portion is a connection bolt 203 that is inserted into the dust cover 201 and the cover 202, and the dust cover 201 and the cover 202 are fixedly connected by the connection bolt 203.

The cover 202 of the present embodiment can be formed by machining, the dust cover 201 can be formed by stamping, and the cover 202 and the dust cover 201 are riveted and fixed together by three connecting bolts 203. In order to facilitate the use of the air tube 10, in this embodiment, a communication port 204 for connecting the air tube 10 is disposed on a side wall of the dust cover 201, and the communication port 204 is specifically formed by an inner hole of an air tube connector fixedly connected to the dust cover 201.

It should be noted that the outer side of the air tube 10 of the present embodiment is wrapped with a heat shrinkable cloth, which increases the wear resistance of the air tube 10 and is beneficial to increasing the service life of the air tube 10.

In addition, the rotating part is preferably a bearing 11 disposed between the core assembly 1 and the end cover assembly 2. The bearing 11 is specifically disposed between the first ring body 101 and the cover 202, as shown in fig. 4 and 6, the bottom of the cover 202 is fixed and sealed with the outer ring of the bearing 11 by spin riveting, and the inner ring is positioned with the bearing positioning end 1011 formed on the first ring body 101 by the mounting sleeve 205 sleeved on the first ring body 101.

In addition, the first ring body 101 is further provided with a sealing cover 12 for abutting against the top rubber 3, in order to improve the sealing performance between the sealing cover 12 and the first ring body 101, a sealing ring 14 is arranged between the sealing cover 12 and the first ring body 101, and the sealing ring 14 is positioned in a first mounting groove 1012 on the first ring body 101. And in order to facilitate the fixation of the sealing cover 12, a second installation groove 1013 is provided on the first ring body 101, and the sealing cover 12 is fixed on the first ring body 101 by a snap spring 13 installed in the second installation groove 1013.

It should be noted that the sealing ring 14 of the present embodiment is preferably an O-ring, and the O-ring can provide a good sealing effect, so as to effectively prevent the gas in the airbag 5 from leaking.

In this embodiment, the bearing 11 is preferably a deep groove full ball bearing 11, so that the torsion force and the lateral force borne by the airbag 5 in the steering process of the air spring can be further reduced, the axial and radial bearing loads of the bearing 11 can be increased, and the service life of the air spring can be prolonged. And the bearing 11 is arranged between the first ring body 101 and the cover body 202, so that the whole structure of the air spring is more compact, and the space saving is facilitated.

The air spring supporting structure of this embodiment can reduce the lateral force and the torsional force that 5 gasbags bore at the in-process that turns to do benefit to and improve the precision and the reliability that 5 gasbags connect, and can avoid 5 gasbags to install the gas leakage and the inefficacy that do not target in place and cause, thereby do benefit to the life who promotes air spring, and have better result of use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. An air spring support structure characterized by comprising a core assembly (1) and an end cap assembly (2), wherein,

the core assembly (1) comprises a first ring body (101) and a second ring body (102) connected to one end of the first ring body (101);

the first ring body (101) is used for installing a shock absorber rod (7), the second ring body (102) is used for connecting an air bag (5), and the center line of the shock absorber rod (7) after installation and the center line of the second ring body (102) form an included angle;

the end cover assembly (2) is rotatably connected to the first ring body (101) through a rotating part, and a connecting part used for being connected with an external component is arranged on the end cover assembly (2).

2. Air spring support structure according to claim 1,

one end part of the second ring body (102) connected with the air bag (5) is arranged in an inclined shape; and the number of the first and second electrodes,

a groove (1021) is formed in the outer peripheral wall of the second ring body (102);

the air bag (5) is sleeved on the outer peripheral wall of the second ring body (102), and a tightening piece used for fastening the air bag (5) is arranged on the second ring body (102).

3. Air spring support structure according to claim 2,

a limiting boss is arranged on the second ring body (102);

the limiting boss is used for limiting the air bag (5) which is sleeved with the limiting boss.

4. Air spring support structure according to claim 1,

a connecting end plate (103) is arranged on the second ring body (102), and a limiting plate (104) is covered on the connecting end plate (103);

the first ring body (101) is fixedly connected to the connecting end plate (103) in an inserted mode, and top rubber (3) and a buffer block (4) are arranged in the first ring body (101);

the shock absorber rod (7) penetrates through the buffer block (4) and the top rubber (3) and is fixedly connected to the top rubber (3).

5. Air spring support structure according to claim 4,

the second ring body (102) is provided with an inflation hole (100);

the inflation hole (100) is used for inflating the connected air bag (5);

the inflation hole (100) is connected with an inflation tube (10).

6. Air spring support structure according to claim 5,

the inflation tube (10) is wound on the first ring body (101);

the inflation hole (100) penetrates through the limiting plate (104) and the connecting end plate (103) together and is connected with the inflation tube (10).

7. Air spring support structure according to claim 4,

a limiting part is arranged on the limiting plate (104);

the limiting part is used for limiting radial outward expansion of the air inflation tube (10) which is wound.

8. Air spring support structure according to claim 7,

the limiting part comprises two limiting blocks (1041) arranged on the limiting plate (104);

the included angle between the two limiting blocks (1041) and the central connecting line of the second ring body (102) is larger than the rotation angle of the end cover assembly (2) relative to the first ring body (101).

9. Air spring support structure according to claim 7,

the end cover assembly (2) comprises a dust cover (201) and a cover body (202);

the cover body (202) is arranged on the dust cover (201) in an overlapping mode, and the inflation tube (10) is contained in the dust cover (201);

the connecting part is a connecting bolt (203) arranged by penetrating the dust cover (201) and the cover body (202), and the dust cover (201) and the cover body (202) are fixedly connected together through the connecting bolt (203);

and a communication port (204) for connecting the inflation tube (10) is arranged on the side wall of the dust cover (201).

10. Air spring support structure according to any one of claims 1 to 9, characterized in that the rotating portion is a bearing (11) provided between the core assembly (1) and the end cover assembly (2).

Images