CN111059197A - Self-adaptive shock absorber for automobile - Google Patents

Self-adaptive shock absorber for automobile Download PDF

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Publication number
CN111059197A
CN111059197A CN202010034382.5A CN202010034382A CN111059197A CN 111059197 A CN111059197 A CN 111059197A CN 202010034382 A CN202010034382 A CN 202010034382A CN 111059197 A CN111059197 A CN 111059197A
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CN
China
Prior art keywords
oil
piston
adaptive
self
valve
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Pending
Application number
CN202010034382.5A
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Chinese (zh)
Inventor
刘本超
鲍娜
孙春玲
王树梁
刘福海
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Shandong Transport Vocational College
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Shandong Transport Vocational College
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Application filed by Shandong Transport Vocational College filed Critical Shandong Transport Vocational College
Priority to CN202010034382.5A priority Critical patent/CN111059197A/en
Publication of CN111059197A publication Critical patent/CN111059197A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention discloses an automobile self-adaptive shock absorber, which comprises: the self-adaptive valve comprises a lifting lug (1), a dust cover (2), an oil seal (3), an oil inlet 1 (4), an upper piston (5), a self-adaptive valve 1 (6), a return spring 1 (7), an oil outlet 1 (8), a working cylinder (9), a lower piston (10), an oil inlet 2 (11), a self-adaptive valve 2 (12), a return spring 2 (13), an oil outlet 2 (14), a piston rod (15), a boss 1 (16), a valve body 1 (17), a boss 2 (18) and a valve body 2 (19). When the piston rod (15) runs up and down, the valve body 1 (17) of the self-adaptive valve 1 (6) and the valve body 2 (19) of the self-adaptive valve 2 (12) respectively enter the oil outlet 1 (8) and the oil outlet 2 (14) to play a role in reducing the flow cross section area of oil, so that the flow resistance of the oil is increased, the damping performance of bumpy road surfaces in the running process of an automobile is enhanced, and the vibration amplitude and frequency of the automobile are reduced.

Description

Self-adaptive shock absorber for automobile
Technical Field
The invention relates to the field of automobile parts, in particular to an automobile self-adaptive shock absorber.
Background
The self-adaptive shock absorber of the automobile is a mechanical shock absorption part for connecting an automobile body, an axle and wheels, and the shock absorber is mounted in an automobile suspension system in order to reduce the shock degree of the automobile body and improve the riding comfort and smoothness of the automobile. Because the hydraulic resistance of the existing shock absorber cannot be adjusted, when the automobile runs on a bumpy road surface, the shock absorption effect of the existing shock absorber is poor, and the shock absorption performance cannot meet the requirements of the automobile.
Therefore, the invention provides a shock absorber with adjustable hydraulic resistance of an automobile self-adaptive shock absorber, which can be suitable for running on a bumpy road surface, and achieves the aim of reducing the vibration frequency and amplitude of an automobile.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the problems that the automobile shock absorber in the prior art is unstable in shock absorption performance and cannot be suitable for bumpy road surfaces in the shock absorption process of different road surfaces. Therefore, the shock absorber with adjustable oil flow resistance and meeting the requirements of smoothness and comfort of an automobile is provided.
In order to achieve the purpose, the invention provides an automobile self-adaptive shock absorber which is characterized by comprising a lifting lug (1), a dust cover (2), an oil seal (3), an oil inlet 1 (4), an upper piston (5), a self-adaptive valve 1 (6), a return spring 1 (7), an oil outlet 1 (8), a working cylinder (9), a lower piston (10), an oil inlet 2 (11), a self-adaptive valve 2 (12), a return spring 2 (13), an oil outlet 2 (14), a piston rod (15), a boss 1 (16), a valve body 1 (17), a boss 2 (18) and a valve body 2 (19).
Preferably, the lifting lug (1) is rigidly connected with the piston rod (15), and the dust cover (2) is connected with the lifting lug (1) and the working cylinder (9).
Preferably, the upper piston (5) is fixed on the piston rod (15), and the upper piston (5) can move up and down along the inner wall of the working cylinder (9). The lower piston (10) is fixed on the piston rod (15), and the lower piston (10) can move up and down along the inner wall of the working cylinder (9).
Preferably, the inside fluid that fills of working cylinder (9), upper portion piston (5) and lower part piston (10) divide into upper portion working chamber and lower part working chamber with working cylinder (9) inside, and piston rod (15) and working cylinder (9) are connected in oil blanket (3), prevent that fluid from leaking outward.
Preferably, the upper piston (5) is processed with an oil inlet 1 (4) and an oil outlet 2 (14), and the lower piston (10) is processed with an oil outlet 1 (8) and an oil inlet 2 (11).
Preferably, the adaptive valve 1 (6) is composed of a boss 1 (16) and a valve body 1 (17), and the adaptive valve 2 (12) is composed of a boss 2 (18) and a valve body 2 (19).
Preferably, the boss 1 (16) of the adaptive valve 1 (6) is tightly attached to the upper piston (5) under the pressing action of the return spring 1 (7) to block the oil inlet 1 (4). The lower end of the return spring 1 (7) is fixed on the lower piston (10), and the upper end presses the boss 1 (16).
Preferably, the upper end of the return spring 2 (13) is fixed on the upper piston (5), the lower end of the return spring compresses the boss 2 (18), and the boss 2 (18) blocks the oil inlet 2 (11).
Preferably, when the piston rod (15) moves up slowly, the upper piston (5) and the lower piston (10) are driven to move up simultaneously, the adaptive valve (2) (12) is pressed on the lower piston (10) under the dual action of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the adaptive valve (1) (6) is pressed by the oil hydraulic pressure to overcome the spring force of the return spring (1) (7) and move downwards. At the moment, the oil inlet 1 (4) is opened, the valve body 1 (17) of the self-adaptive valve 1 (6) does not enter the oil outlet 1 (8), and oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8).
Preferably, when the piston rod (15) moves upwards rapidly, the upper piston (5) and the lower piston (10) are driven to move upwards simultaneously, the adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the adaptive valve (1) (6) is subjected to the oil hydraulic pressure to overcome the spring force of the return spring (1) (7) and move downwards. At the moment, the oil inlet 1 (4) is opened, oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8), the valve body 1 (17) of the self-adaptive valve 1 (6) enters the oil outlet 1 (8), the sectional area of the oil outlet 1 (8) is reduced, the oil flow resistance is increased, and the damping effect of the shock absorber is enhanced.
Preferably, when the piston rod (15) moves downwards slowly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the adaptive valve (1) (6) is pressed on the upper piston (5) under the double action of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the adaptive valve (2) (12) moves upwards under the oil hydraulic pressure and overcomes the spring force of the return spring (2) (13). At the moment, the oil inlet 2 (11) is opened, the valve body 2 (19) of the adaptive valve 2 (12) does not enter the oil outlet 2 (14), and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14).
Preferably, when the piston rod (15) moves downwards rapidly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the adaptive valve (1) (6) is pressed on the upper piston (5) under the dual action of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the adaptive valve (2) (12) moves upwards under the oil hydraulic pressure and overcomes the spring force of the return spring (2) (13). At the moment, the oil inlet 2 (11) is opened, and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14). The valve body 2 (19) of the self-adaptive valve 2 (12) enters the oil outlet 2 (14), the sectional area of the oil outlet 2 (14) is reduced, the oil liquid flow resistance is increased, and the damping effect of the shock absorber is enhanced.
According to the technical scheme, the lifting lug (1) is rigidly connected with the piston rod (15), and the dust cover (2) is connected with the lifting lug (1) and the working cylinder (9). The upper piston (5) is fixed on the piston rod (15), and the upper piston (5) can move up and down along the inner wall of the working cylinder (9). The lower piston (10) is fixed on the piston rod (15), and the lower piston (10) can move up and down along the inner wall of the working cylinder (9). Oil is filled in the working cylinder (9), the two pistons divide the working cylinder (9) into an upper working cavity and a lower working cavity, and the oil seal (3) is connected with the piston rod (15) and the working cylinder (9) to prevent the oil from leaking outside. The upper piston (5) is provided with an oil inlet 1 (4) and an oil outlet 2 (14), and the lower piston (10) is provided with an oil outlet 1 (8) and an oil inlet 2 (11). The lug boss 1 (16) of the self-adaptive valve 1 (6) is tightly attached to the upper piston (5) under the pressing action of the return spring 1 (7) to block the oil inlet 1 (4). The lower end of the return spring 1 (7) is fixed on the lower piston (10), and the upper end presses the boss 1 (16). The upper end of a return spring 2 (13) is fixed on the upper piston (5), the lower end of the return spring compresses a boss 2 (18), and the boss 2 (18) blocks an oil inlet 2 (11). When the piston rod (15) moves up slowly, the upper piston (5) and the lower piston (10) are driven to move up simultaneously, the self-adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the self-adaptive valve (1) (6) overcomes the spring force of the return spring (1) (7) and moves downwards under the oil hydraulic pressure. At the moment, the oil inlet 1 (4) is opened, the valve body 1 (17) of the self-adaptive valve 1 (6) does not enter the oil outlet 1 (8), and oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8). When the piston rod (15) moves upwards rapidly, the upper piston (5) and the lower piston (10) are driven to move upwards simultaneously, the self-adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the self-adaptive valve (1) (6) overcomes the spring force of the return spring (1) (7) and moves downwards under the oil hydraulic pressure. At the moment, the oil inlet 1 (4) is opened, oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8), the valve body 1 (17) of the self-adaptive valve 1 (6) enters the oil outlet 1 (8), the sectional area of the oil outlet 1 (8) is reduced, the oil flow resistance is increased, and the damping effect of the shock absorber is enhanced. When the piston rod (15) moves downwards slowly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the self-adaptive valve (1) (6) is tightly pressed on the upper piston (5) under the double actions of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the self-adaptive valve (2) (12) overcomes the spring force of the return spring (2) (13) and moves upwards under the oil hydraulic pressure. At the moment, the oil inlet 2 (11) is opened, the valve body 2 (19) of the adaptive valve 2 (12) does not enter the oil outlet 2 (14), and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14). When the piston rod (15) moves downwards rapidly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the self-adaptive valve (1) (6) is tightly pressed on the upper piston (5) under the double actions of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the self-adaptive valve (2) (12) moves upwards under the oil hydraulic pressure and overcomes the spring force of the return spring (2) (13). At the moment, the oil inlet 2 (11) is opened, and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14). The valve body 2 (19) of the self-adaptive valve 2 (12) enters the oil outlet 2 (14), the sectional area of the oil outlet 2 (14) is reduced, the oil liquid flow resistance is increased, and the damping effect of the shock absorber is enhanced.
When the piston rod (15) runs up and down, the valve body 1 (17) of the self-adaptive valve 1 (6) and the valve body 2 (19) of the self-adaptive valve 2 (12) respectively enter the oil outlet 1 (8) and the oil outlet 2 (14) to play a role in reducing the flow cross section area of oil, so that the flow resistance of the oil is increased, and the damping effect of the shock absorber is enhanced.
When the automobile vibrates in different degrees, the flow section of the oil liquid of the self-adaptive shock absorber is changed, the flow resistance of the oil liquid is changed, and the purpose of reducing the vibration frequency and amplitude of the automobile is achieved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an adaptive shock absorber for an automobile according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an adaptive valve 1 provided in a preferred embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an adaptive valve 2 provided in a preferred embodiment of the present invention.
Fig. 4 is a state diagram of the adaptive valve 1 when the valve body 1 (17) provided in a preferred embodiment of the present invention does not enter the oil outlet 1 (8).
Fig. 5 is a state diagram of the adaptive valve 1 when the valve body 1 (17) enters the oil outlet 1 (8) in the preferred embodiment of the present invention.
Fig. 6 is a state diagram of the adaptive valve 2 (12) in which the valve body 2 (19) does not enter the oil outlet 2 (14) in the preferred embodiment of the present invention.
Fig. 7 is a state diagram of the adaptive valve 2 (12) of the valve body 2 (19) entering the oil outlet 2 (14) provided in a preferred embodiment of the present invention.
Description of the reference numerals
1 lifting lug 2 dust cover 3 oil seal 4 oil inlet 15 upper piston 6 self-adaptive valve 17 return spring 18 oil outlet 19 working cylinder 10 lower piston 11 oil inlet 212 self-adaptive valve 213 return spring 214 oil outlet 215 piston rod 16 boss 117 valve body 118 boss 219 valve body 2.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
According to the figure 1, the invention provides an automobile self-adaptive shock absorber, wherein a lifting lug (1) is rigidly connected with a piston rod (15), and a dust cover (2) is connected with the lifting lug (1) and a working cylinder (9). The upper piston (5) is fixed on the piston rod (15), and the upper piston (5) can move up and down along the inner wall of the working cylinder (9). The lower piston (10) is fixed on the piston rod (15), and the lower piston (10) can move up and down along the inner wall of the working cylinder (9). Oil is filled in the working cylinder (9), the two pistons divide the working cylinder (9) into an upper working cavity and a lower working cavity, and the oil seal (3) is connected with the piston rod (15) and the working cylinder (9) to prevent the oil from leaking outside. The upper piston (5) is provided with an oil inlet 1 (4) and an oil outlet 2 (14), and the lower piston (10) is provided with an oil outlet 1 (8) and an oil inlet 2 (11). The adaptive valve 1 (6) is composed of a boss 1 (16) and a valve body 1 (17), and the adaptive valve 2 (12) is composed of a boss 2 (18) and a valve body 2 (19). The lug boss 1 (16) of the self-adaptive valve 1 (6) is tightly attached to the upper piston (5) under the pressing action of the return spring 1 (7) to block the oil inlet 1 (4). The lower end of the return spring 1 (7) is fixed on the lower piston (10), and the upper end presses the boss 1 (16). The upper end of a return spring 2 (13) is fixed on the upper piston (5), the lower end of the return spring compresses a boss 2 (18), and the boss 2 (18) blocks an oil inlet 2 (11). When the piston rod (15) moves up slowly, the upper piston (5) and the lower piston (10) are driven to move up simultaneously, the self-adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the self-adaptive valve (1) (6) overcomes the spring force of the return spring (1) (7) and moves downwards under the oil hydraulic pressure. At the moment, the oil inlet 1 (4) is opened, the valve body 1 (17) of the self-adaptive valve 1 (6) does not enter the oil outlet 1 (8), and oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8). When the piston rod (15) moves upwards rapidly, the upper piston (5) and the lower piston (10) are driven to move upwards simultaneously, the self-adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the self-adaptive valve (1) (6) overcomes the spring force of the return spring (1) (7) and moves downwards under the oil hydraulic pressure. At the moment, the oil inlet 1 (4) is opened, oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8), the valve body 1 (17) of the self-adaptive valve 1 (6) enters the oil outlet 1 (8), the sectional area of the oil outlet 1 (8) is reduced, the oil flow resistance is increased, and the damping effect of the shock absorber is enhanced. When the piston rod (15) moves downwards slowly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the self-adaptive valve (1) (6) is tightly pressed on the upper piston (5) under the double actions of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the self-adaptive valve (2) (12) overcomes the spring force of the return spring (2) (13) and moves upwards under the oil hydraulic pressure. At the moment, the oil inlet 2 (11) is opened, the valve body 2 (19) of the adaptive valve 2 (12) does not enter the oil outlet 2 (14), and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14). When the piston rod (15) moves downwards rapidly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the self-adaptive valve (1) (6) is tightly pressed on the upper piston (5) under the double actions of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the self-adaptive valve (2) (12) moves upwards under the oil hydraulic pressure and overcomes the spring force of the return spring (2) (13). At the moment, the oil inlet 2 (11) is opened, and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14). The valve body 2 (19) of the self-adaptive valve 2 (12) enters the oil outlet 2 (14), the sectional area of the oil outlet 2 (14) is reduced, the oil liquid flow resistance is increased, and the damping effect of the shock absorber is enhanced.
The lifting lug (1) is rigidly connected to the piston rod (15), and the dust cover (2) connects the lifting lug (1) to the working cylinder (9), as is known in the art. In a specific embodiment of the invention, the connection of the lifting lug (1) to the piston rod (15) is non-detachable. The dust cover (2) is elastically deformable, and can prevent outside dust from entering the inside of the dust cover (2).
In the case of the known art, the upper piston (5) is fixed to a piston rod (15), the upper piston (5) being movable up and down along the inner wall of the working cylinder (9). The lower piston (10) is fixed on the piston rod (15), and the lower piston (10) can move up and down along the inner wall of the working cylinder (9).
Under the condition of the prior art, the working cylinder (9) is filled with oil, the upper piston (5) and the lower piston (10) divide the interior of the working cylinder (9) into an upper working cavity and a lower working cavity, and an oil seal (3) is connected with the piston rod (15) and the working cylinder (9) and prevents the oil from leaking outside.
In the known state of the art, the upper piston (5) is machined with an oil inlet 1 (4) and an oil outlet 2 (14), and the lower piston (10) is machined with an oil outlet 1 (8) and an oil inlet 2 (11).
In the case of the known art, the adaptive valve 1 (6) is composed of a boss 1 (16) and a valve body 1 (17), and the adaptive valve 2 (12) is composed of a boss 2 (18) and a valve body 2 (19).
Under the condition of common knowledge in the field, the lug boss 1 (16) of the self-adaptive valve 1 (6) is tightly attached to the upper piston (5) under the pressing action of the return spring 1 (7) to block the oil inlet 1 (4). The lower end of the return spring 1 (7) is fixed on the lower piston (10), and the upper end presses the boss 1 (16).
In the state of the art, the upper end of the return spring 2 (13) is fixed on the upper piston (5), the lower end presses the boss 2 (18), and the boss 2 (18) blocks the oil inlet 2 (11).
Under the condition of the prior art, when the piston rod (15) moves upwards slowly, the upper piston (5) and the lower piston (10) are driven to move upwards simultaneously, the adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the adaptive valve (1) (6) is subjected to the oil hydraulic pressure to overcome the spring force of the return spring (1) (7) and move downwards. At the moment, the oil inlet 1 (4) is opened, the valve body 1 (17) of the self-adaptive valve 1 (6) does not enter the oil outlet 1 (8), and oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8).
Under the condition of the prior art, when the piston rod (15) moves upwards rapidly, the upper piston (5) and the lower piston (10) are driven to move upwards simultaneously, the adaptive valve (2) (12) is tightly pressed on the lower piston (10) under the double actions of the return spring (2) (13) and oil hydraulic pressure, and the boss (1) (16) of the adaptive valve (1) (6) is subjected to the oil hydraulic pressure to overcome the spring force of the return spring (1) (7) and move downwards. At the moment, the oil inlet 1 (4) is opened, oil in the upper working chamber flows into the lower working chamber through the oil inlet 1 (4) and the oil outlet 1 (8), the valve body 1 (17) of the self-adaptive valve 1 (6) enters the oil outlet 1 (8), the sectional area of the oil outlet 1 (8) is reduced, the oil flow resistance is increased, and the damping effect of the shock absorber is enhanced.
Under the condition of the prior art, when the piston rod (15) moves downwards slowly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the self-adaptive valve (1) (6) is tightly pressed on the upper piston (5) under the double actions of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the self-adaptive valve (2) (12) is pressed by the oil hydraulic pressure to overcome the spring force of the return spring (2) (13) and move upwards. At the moment, the oil inlet 2 (11) is opened, the valve body 2 (19) of the adaptive valve 2 (12) does not enter the oil outlet 2 (14), and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14).
Under the condition of the prior art, when the piston rod (15) moves downwards rapidly, the upper piston (5) and the lower piston (10) are driven to move downwards simultaneously, the self-adaptive valve (1) (6) is tightly pressed on the upper piston (5) under the double actions of the return spring (1) (7) and oil hydraulic pressure, and the boss (2) (18) of the self-adaptive valve (2) (12) is pressed by the oil hydraulic pressure to overcome the spring force of the return spring (2) (13) and move upwards. At the moment, the oil inlet 2 (11) is opened, and oil in the lower working chamber flows into the upper working chamber through the oil inlet 2 (11) and the oil outlet 2 (14). The valve body 2 (19) of the self-adaptive valve 2 (12) enters the oil outlet 2 (14), the sectional area of the oil outlet 2 (14) is reduced, the oil liquid flow resistance is increased, and the damping effect of the shock absorber is enhanced.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (7)

1. The self-adaptive shock absorber for the automobile is characterized by comprising a lifting lug (1), a dust cover (2), an oil seal (3), an oil inlet 1 (4), an upper piston (5), a self-adaptive valve 1 (6), a return spring 1 (7), an oil outlet 1 (8), a working cylinder (9), a lower piston (10), an oil inlet 2 (11), a self-adaptive valve 2 (12), a return spring 2 (13), an oil outlet 2 (14), a piston rod (15), a boss 1 (16), a valve body 1 (17), a boss 2 (18) and a valve body 2 (19).
2. The adaptive shock absorber of claim 1, wherein the upper piston (5) is fixed on a piston rod (15), and the upper piston (5) can move up and down along the inner wall of the working cylinder (9); the lower piston (10) is fixed on the piston rod (15), and the lower piston (10) can move up and down along the inner wall of the working cylinder (9).
3. The adaptive shock absorber for automobiles according to claim 1, wherein the inside of the working cylinder (9) is filled with oil, the upper piston (5) and the lower piston (10) divide the inside of the working cylinder (9) into an upper working chamber and a lower working chamber, and the oil seal (3) connects the piston rod (15) and the working cylinder (9) to prevent the oil from leaking outside.
4. The adaptive shock absorber for automobiles according to claim 1, wherein the upper piston (5) is processed with an oil inlet 1 (4) and an oil outlet 2 (14), and the lower piston (10) is processed with an oil outlet 1 (8) and an oil inlet 2 (11).
5. The adaptive shock absorber for the automobile according to claim 1, wherein the adaptive valve 1 (6) is composed of a boss 1 (16) and a valve body 1 (17), and the adaptive valve 2 (12) is composed of a boss 2 (18) and a valve body 2 (19).
6. The adaptive shock absorber for the automobile according to claim 1, wherein the boss 1 (16) of the adaptive valve 1 (6) clings to the upper piston (5) under the compression action of the return spring 1 (7) to block the oil inlet 1 (4); the lower end of the return spring 1 (7) is fixed on the lower piston (10), and the upper end presses the boss 1 (16).
7. The adaptive shock absorber for the automobile according to claim 1, wherein the upper end of the return spring 2 (13) is fixed on the upper piston (5), the lower end of the return spring compresses the boss 2 (18), and the boss 2 (18) blocks the oil inlet 2 (11).
CN202010034382.5A 2020-01-14 2020-01-14 Self-adaptive shock absorber for automobile Pending CN111059197A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1304368A (en) * 1969-07-01 1973-01-24
WO2017221920A1 (en) * 2016-06-24 2017-12-28 日立オートモティブシステムズ株式会社 Shock absorber and method for manufacturing same
CN107740836A (en) * 2017-11-22 2018-02-27 桂林电子科技大学 Gas-liquid vibration absorber
CN107939898A (en) * 2017-11-30 2018-04-20 南京航空航天大学 A kind of bellows-type buffer
CN207406685U (en) * 2017-09-28 2018-05-25 浙江路得坦摩汽车部件股份有限公司 A kind of damper regulating valve
CN108150578A (en) * 2017-12-01 2018-06-12 常州大学 A kind of liquid condenser for becoming the damping of working clearance no maximum
CN109027099A (en) * 2018-09-26 2018-12-18 山东凌博瑞轨道交通科技有限公司 Piston type self-adaptive damping variable hydraulic damper

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1304368A (en) * 1969-07-01 1973-01-24
WO2017221920A1 (en) * 2016-06-24 2017-12-28 日立オートモティブシステムズ株式会社 Shock absorber and method for manufacturing same
CN207406685U (en) * 2017-09-28 2018-05-25 浙江路得坦摩汽车部件股份有限公司 A kind of damper regulating valve
CN107740836A (en) * 2017-11-22 2018-02-27 桂林电子科技大学 Gas-liquid vibration absorber
CN107939898A (en) * 2017-11-30 2018-04-20 南京航空航天大学 A kind of bellows-type buffer
CN108150578A (en) * 2017-12-01 2018-06-12 常州大学 A kind of liquid condenser for becoming the damping of working clearance no maximum
CN109027099A (en) * 2018-09-26 2018-12-18 山东凌博瑞轨道交通科技有限公司 Piston type self-adaptive damping variable hydraulic damper

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Application publication date: 20200424