CN218266966U

CN218266966U - Air spring shock absorber with adjustable damping

Info

Publication number: CN218266966U
Application number: CN202222892715.5U
Authority: CN
Inventors: 邓鹄; 孙林桥; 蒋木; 何洪波
Original assignee: Xgm Corp ltd
Current assignee: Xgm Corp ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-01-10
Anticipated expiration: 2032-11-01

Abstract

The utility model provides an adjustable damped air spring shock absorber, including the organism, be provided with in the organism: the air spring assembly, the piston assembly and the electromagnetic valve assembly are arranged in the piston assembly; the piston assembly comprises a piston rod, one end of the piston rod is connected and matched with the air spring assembly, and the other end of the piston rod corresponds to the electromagnetic valve assembly and controls the vibration damping of the piston assembly through the electromagnetic valve assembly. The utility model discloses can make the bumper shock absorber guarantee stability at the during operation, make vehicle shock attenuation buffer process more steady, increase the comfortable type of vehicle, make the passenger take more comfortablely, still make the vehicle can adapt to more complicated road conditions.

Description

Air spring shock absorber with adjustable damping

Technical Field

The utility model relates to a bumper shock absorber technical field, in particular to adjustable damped air spring shock absorber.

Background

The automobile shock absorber is a component part of an automobile and plays a role in buffering and shock absorption. A shock absorber for an automobile is generally provided between a suspension of the automobile, which is connected to a shaft portion of a wheel, and a vehicle body. When the body of the automobile generates relative motion relative to the wheels, the automobile shock absorber works and plays a role in damping shock absorption. Most of the existing shock absorbers are widely used as hydraulic shock absorbers, when a frame and an axle do reciprocating relative motion to enable a piston to reciprocate in a cylinder barrel of the shock absorber, oil in a shell of the shock absorber repeatedly flows into another cavity from the cavity through narrow holes, and at the moment, the friction between liquid and the inner wall and the internal friction of liquid molecules form damping force on vibration. The shock attenuation problem can be solved to this mode, but the shock attenuation buffering process is steady enough, influences the interior experience of taking of car, and can not adapt to complicated ground environment well.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an adjustable damped air spring shock absorber, thereby can realize that the control of bumper shock absorber damping force makes vehicle shock attenuation buffer process more steady, has increased the comfortable type of vehicle, makes the passenger take more comfortablely, can also make the vehicle adapt to more complicated road conditions.

In order to solve the technical problem, the utility model discloses an adjustable damped air spring shock absorber, which comprises a bod, be provided with in the organism: the air spring assembly is connected with the piston assembly at one end, and the electromagnetic valve assembly is arranged in the piston assembly; the piston assembly comprises a piston rod, one end of the piston rod is connected and matched with the air spring assembly, and the other end of the piston rod corresponds to the electromagnetic valve assembly and controls the vibration damping of the piston assembly through the electromagnetic valve assembly.

The technical scheme of the utility model is that the electromagnetic valve component can be used to adjust the size of the gap in the electromagnetic valve through the arrangement of the electromagnetic valve component and the piston component, so as to change the flow of oil in the electromagnetic valve, and the friction between the oil and the gap of the electromagnetic valve is changed to bring different damping forces, thereby improving the stability and comfort level of the vehicle; the air spring assembly can change the length of the shock absorber, so that the height of the vehicle is changed, the comfort of the vehicle is improved, and the vehicle can adapt to more complex road conditions.

Furthermore, a cavity for storing shock absorber oil liquid is formed in the piston assembly, and one end of the piston rod and the solenoid valve assembly are arranged in the cavity and used for controlling the flow of the shock absorber oil liquid; the solenoid valve assembly includes: the electromagnetic valve and the bottom valve are respectively arranged at two ends of the cavity.

The technical scheme of the utility model the solenoid valve with the setting of bottom valve is right fluid in the cavity is controlled, realizes the regulation of different damping force size, realizes the soft or hard regulation of automotive suspension.

Further, the air spring assembly includes: the lower piston, the capsule skin and the top seat assembly; the piston rod with the footstock assembly is connected, the one end of piston is located down on the piston assembly, the other end of piston down with the capsule skin is through the spacing cooperation of first clamping ring, the other end of capsule skin pass through the second clamping ring with the spacing cooperation of footstock assembly.

The utility model discloses technical scheme utilizes the bag skin under the effect of different atmospheric pressures varicosity characteristic, can realize the change to bumper shock absorber length through the size of adjustment input bag skin atmospheric pressure to change the height of vehicle, make the vehicle adapt to different complicated road conditions environment.

Furthermore, one end of the top seat assembly is connected with a plug, and the plug is connected with an external vehicle body circuit; the footstock assembly comprises: aluminum and rubber bushings; one end of the piston rod is arranged on the aluminum material through the rubber bushing.

The utility model discloses technical scheme the normal use that the bumper shock absorber can be guaranteed in setting up of plug, the aluminum product makes holistic structure more firm, rubber bush can be right the piston rod plays certain guard action.

Further, still fixedly in the organism be provided with the oil blanket director, piston assembly is close to the one end of oil blanket director is provided with the stopper, the oil blanket director with be provided with the elastic component between the stopper.

The technical proposal of the utility model can improve the sealing performance of the oil seal and reduce the oil leakage phenomenon; the stopper with the setting of elastic component can play the absorbing effect, guarantees the comfort and the balance of vehicle.

Further, a pressure retaining valve is arranged on the top seat assembly, and one end of the pressure retaining valve is communicated with the air cavity in the bladder skin and is used for maintaining and ventilating air pressure in the air cavity.

The utility model discloses technical scheme utilizes the pressure retaining valve makes the gas that fills into the bumper shock absorber can not reveal under certain atmospheric pressure to guarantee that the vehicle still stays with certain atmospheric pressure in the bumper shock absorber bag skin under flame-out state, consume the time still less when the vehicle restarts and just can reach the ride height.

Furthermore, one end of the top seat assembly is provided with a top rubber which is connected and matched with an external vehicle body, and a locking nut piece is arranged between one end of the piston rod and the top seat assembly.

The utility model discloses technical scheme the top is glued sets up and can be guaranteed certain buffering vibrations effect, the setting up of locking nut spare makes the piston rod with connection between the footstock assembly is firm.

Further, a working cylinder and a liquid storage cylinder are arranged in the machine body, the working cylinder is arranged in the liquid storage cylinder, the cavity is arranged in the working cylinder, and the piston assembly and the electromagnetic valve assembly are arranged in the working cylinder. By adopting the structure, the arrangement of the working cylinder and the liquid storage cylinder can play a role of storing oil,

furthermore, one end of the top seat assembly is provided with a first dust cover, and one end of the piston assembly is provided with a second dust cover. Adopt this structure can play the effect of protection to the bumper shock absorber to a certain extent.

Drawings

FIG. 1 is a cross-sectional view of an air spring damper with adjustable damping according to the present invention;

FIG. 2 is a partial cross-sectional view of an adjustable damping air spring shock absorber piston assembly according to the present invention;

FIG. 3 is a partial cross-sectional view of an air spring assembly of an adjustable damping air spring shock absorber according to the present invention;

wherein: the air spring assembly comprises an air spring assembly 1, a lower piston 101, a bladder skin 102, a top seat assembly 103, an aluminum material 113, a rubber bushing 123, a piston assembly 2, a piston rod 201, an electromagnetic valve assembly 3, an electromagnetic valve 301, a bottom valve 302, a cavity 4, a first press ring 501, a second press ring 502, a plug 6, an oil seal guider 7, a limit block 8, an elastic part 9, a pressure retaining valve 10, an air cavity 11, an apex rubber 12, a locking nut part 13, a working cylinder 14, a liquid storage cylinder 15, a first dust cover 1601 and a second dust cover 1602.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The details which are not described in detail below are within the knowledge of the skilled person.

Referring to fig. 1 to 3, in an embodiment, an air spring damper with adjustable damping includes a housing, in which: the air spring assembly comprises an air spring assembly 1, a piston assembly 2 and a solenoid valve assembly 3, wherein one end of the air spring assembly 1 is connected with the piston assembly 2, and the solenoid valve assembly 3 is arranged in the piston assembly 2; the piston assembly 2 comprises a piston rod 201, one end of the piston rod 201 is connected and matched with the air spring assembly 1, and the other end of the piston rod 201 corresponds to the solenoid valve assembly 3 and controls the vibration damping of the piston assembly 2 through the solenoid valve assembly 3.

One end of the electromagnetic valve assembly 3 is matched with the piston assembly 2, when the shock absorber works, the piston rod 201 makes stretching and compressing movement, the shock absorber oil filled in the cavity 4 can flow through the piston assembly 2 and the electromagnetic valve assembly 3 under the driving of the piston rod 201, and due to the throttling action of the valve system in the piston assembly 2 and the electromagnetic valve assembly 3, the damping force to vibration is formed by the friction between the valve system and the oil liquid and the friction in liquid molecules, so that the vibration energy of the vehicle is converted into heat energy, and the heat energy is absorbed by the oil liquid and the shock absorber shell and then is dissipated into the atmosphere, and the kinetic energy is converted into the heat energy.

Referring to fig. 2, in the embodiment, a cavity 4 for storing the shock absorber oil is formed in the piston assembly 2, and one end of the piston rod 201 and the solenoid valve assembly 3 are disposed in the cavity 4 for controlling the flow rate of the shock absorber oil; the solenoid valve assembly 3 includes: the electromagnetic valve 301 and the bottom valve 302, the electromagnetic valve 301 and the bottom valve 302 are respectively arranged at two ends of the cavity 4.

Under the action of current, the electromagnetic valve 301 can adjust the size of the gap in the electromagnetic valve 301, so that the flow of oil in the electromagnetic valve 301 is changed, and the difference of the size of the damping force is brought by the change of the friction between the oil and the gap of the electromagnetic valve 301.

Referring to fig. 3, in an exemplary embodiment, air spring assembly 1 includes: a lower piston 101, a capsule shell 102 and a top seat assembly 103; the piston rod 201 is connected with the top seat assembly 103, one end of the lower piston 101 is arranged on the piston component 2, the other end of the lower piston 101 is in limit fit with the capsule shell 102 through a first pressing ring 501, and the other end of the capsule shell 102 is in limit fit with the top seat assembly 103 through a second pressing ring 502.

By utilizing the buckling characteristic of the bag skin 102 under the action of different air pressures, the length of the shock absorber can be changed by adjusting the air pressure input into the bag skin 102, so that the height of the vehicle is changed, and the vehicle is suitable for different complex road conditions.

Referring to fig. 1 and 3, in the embodiment, a plug 6 is connected to one end of the top seat assembly 103, and the plug 6 is connected to an external vehicle body circuit; the top mount assembly 103 includes: aluminum 113 and rubber bushings 123; one end of the piston rod 201 is provided on the aluminum material 113 through a rubber bush 123.

The normal use of bumper shock absorber can be guaranteed in setting up of plug 6, and aluminum product 113 makes holistic structure more firm, and rubber bush 123 can play certain guard action to piston rod 201

Referring to fig. 1, in a specific embodiment, an oil seal guider 7 is further fixedly disposed in the body, a limiting block 8 is disposed at one end of the piston assembly 2 close to the oil seal guider 7, and an elastic member 9 is disposed between the oil seal guider 7 and the limiting block 8.

The arrangement of the oil seal guider 7 can improve the sealing performance of the oil seal and reduce the oil leakage phenomenon; the elastic part 9 is a spring, and the arrangement of the limiting block 8 and the elastic part 9 can play a role in shock absorption, so that the comfort and balance of the vehicle are ensured

Referring to fig. 1 and 3, in the embodiment, a pressure retaining valve 10 is disposed on the top seat assembly 103, and one end of the pressure retaining valve 10 is communicated with the air chamber 11 in the bladder skin 102 and is used for maintaining and ventilating the air pressure in the air chamber 11.

The pressure retaining valve 10 prevents the gas filled in the shock absorber from leaking under a certain pressure, thereby ensuring that the gas pressure in the shock absorber bag skin is still certain when the vehicle is in a flameout state, and the running height can be reached in less time when the vehicle is restarted

Referring to fig. 1, in the embodiment, one end of the top seat assembly 103 is provided with a top rubber 12 for connecting and matching with an external vehicle body, and a locking nut member 13 is arranged between one end of the piston rod 201 and the top seat assembly 103.

The arrangement of the top rubber 12 can ensure a certain buffering vibration effect, and the arrangement of the locking nut member 13 enables the connection between the piston rod 201 and the top seat assembly 103 to be stable

Referring to fig. 2, in the specific embodiment, a working cylinder 14 and a liquid storage cylinder 15 are arranged in the machine body, the working cylinder 14 is arranged in the liquid storage cylinder 15, the cavity 4 is arranged in the working cylinder 14, the piston assembly 2 and the electromagnetic valve assembly 3 are arranged in the working cylinder 14, and the oil storage function can be achieved by the arrangement of the working cylinder and the liquid storage cylinder.

Referring to the specific embodiment, one end of the top seat assembly 103 is provided with a first dust cover 1601, one end of the piston assembly 2 is provided with a second dust cover 1602, and external dust is prevented from entering the air spring 3 and the piston assembly 2, so that the shock absorber can be protected to a certain extent.

In the embodiment, the size of the gap in the electromagnetic valve is adjusted by arranging the electromagnetic valve component and the piston component, so that the flow of oil in the electromagnetic valve is changed, the stability and the comfort of a vehicle are improved, and the comfort of the vehicle is improved; in addition, the length of the shock absorber is changed through the varicosity of the air spring assembly, so that the height of the vehicle is changed, and the vehicle is suitable for different complex road conditions; still utilize the setting of pressure retaining valve, guarantee that the vehicle still leaves certain atmospheric pressure in the bumper shock absorber bag skin under flameout state, consume less time just can reach the ride height when the vehicle restarts, holistic simple structure.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The damping-adjustable air spring shock absorber is characterized by comprising a machine body, wherein: the air spring assembly comprises an air spring assembly (1), a piston assembly (2) and a solenoid valve assembly (3), wherein one end of the air spring assembly (1) is connected with the piston assembly (2), and the solenoid valve assembly (3) is arranged in the piston assembly (2); the piston assembly (2) comprises a piston rod (201), one end of the piston rod (201) is connected with the air spring assembly (1) in a matched mode, and the other end of the piston rod (201) corresponds to the electromagnetic valve assembly (3) and controls the vibration damping of the piston assembly (2) through the electromagnetic valve assembly (3).

2. The adjustable damping air spring shock absorber according to claim 1, wherein a chamber (4) for storing shock absorber fluid is formed in said piston assembly (2), and one end of said piston rod (201) and said solenoid valve assembly (3) are disposed in said chamber (4) for controlling the flow of shock absorber fluid; the solenoid valve assembly (3) comprises: the electromagnetic valve (301) and the bottom valve (302) are respectively arranged at two ends of the cavity (4).

3. The adjustable damping air spring shock absorber of claim 1 wherein said air spring assembly (1) comprises: a lower piston (101), a capsule shell (102) and a top seat assembly (103); piston rod (201) with footstock assembly (103) are connected, the one end of lower piston (101) is located on piston assembly (2), the other end of lower piston (101) with bag skin (102) are through first clamping ring (501) spacing cooperation, the other end of bag skin (102) pass through second clamping ring (502) with the spacing cooperation of footstock assembly (103).

4. The adjustable damping air spring shock absorber of claim 3, wherein said top mount assembly (103) is provided with a plug (6) at one end thereof, said plug (6) being connected to external body circuitry; the top mount assembly (103) comprises: an aluminum material (113) and a rubber bush (123); one end of the piston rod (201) is arranged on the aluminum material (113) through the rubber bushing (123).

5. The adjustable damping air spring shock absorber according to claim 1, wherein an oil seal guider (7) is fixedly arranged in the machine body, a limiting block (8) is arranged at one end of the piston assembly (2) close to the oil seal guider (7), and an elastic part (9) is arranged between the oil seal guider (7) and the limiting block (8).

6. The adjustable damping air spring shock absorber according to claim 3, wherein a pressure retaining valve (10) is provided on said top seat assembly (103), one end of said pressure retaining valve (10) being in communication with an air chamber (11) in said bladder skin (102) and being adapted for air pressure retention and venting in said air chamber (11).

7. An adjustable damping air spring shock absorber as claimed in claim 3 wherein one end of said top mount assembly (103) is provided with a top rubber (12) for engaging with an external vehicle body.

8. An adjustable damping air spring shock absorber as claimed in claim 3 wherein a locking nut member (13) is provided between one end of said piston rod (201) and said top mount assembly (103).

9. Damping adjustable air spring shock absorber according to claim 2, characterized in that a working cylinder (14) and a reservoir (15) are arranged in the machine body, the working cylinder (14) is arranged in the reservoir (15), the cavity (4) opens in the working cylinder (14), and the piston assembly (2) and the solenoid valve assembly (3) are arranged in the working cylinder (14).

10. An adjustable damping air spring shock absorber as claimed in claim 3 wherein said top mount assembly (103) is provided with a first dust cover (1601) at one end and a second dust cover (1602) at one end of said piston assembly (2).