CN117889175A - Connecting rod hanging ring type double-cylinder shock absorber - Google Patents

Connecting rod hanging ring type double-cylinder shock absorber Download PDF

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Publication number
CN117889175A
CN117889175A CN202410156904.7A CN202410156904A CN117889175A CN 117889175 A CN117889175 A CN 117889175A CN 202410156904 A CN202410156904 A CN 202410156904A CN 117889175 A CN117889175 A CN 117889175A
Authority
CN
China
Prior art keywords
oil
cylinder
connecting rod
piston rod
shock absorber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410156904.7A
Other languages
Chinese (zh)
Inventor
张熙
费明
毛志威
向思帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Ningjiang Shanchuan Machinery Co ltd
Original Assignee
Sichuan Ningjiang Shanchuan Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Ningjiang Shanchuan Machinery Co ltd filed Critical Sichuan Ningjiang Shanchuan Machinery Co ltd
Priority to CN202410156904.7A priority Critical patent/CN117889175A/en
Publication of CN117889175A publication Critical patent/CN117889175A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16F9/3221—Constructional features of piston rods
    • 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
    • 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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/366—Special sealings, including sealings or guides for piston-rods functioning as guide only, e.g. bushings

Landscapes

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

Abstract

The invention discloses a connecting rod hanging ring type double-cylinder shock absorber which comprises a piston rod, a guide sleeve, an oil storage cylinder, a piston rod valve system and a connecting rod, wherein the guide sleeve is arranged in the head end of the oil storage cylinder, the connecting rod is arranged at the tail end of the oil storage cylinder, the piston rod is movably connected with the oil storage cylinder through the guide sleeve, and the piston rod valve system is arranged at one end of the piston rod extending into the oil storage cylinder. The invention solves the technical problem of cost increase caused by longer cylinder in the prior art through the connecting rod hanging ring type double-cylinder shock absorber.

Description

Connecting rod hanging ring type double-cylinder shock absorber
Technical Field
The invention relates to the technical field of vibration absorbers, in particular to a connecting rod hanging ring type double-cylinder vibration absorber.
Background
The shock absorber is suitable for inhibiting vibration and impact from the road surface when the spring rebounds after absorbing the vibration, so that the shock absorber is mostly applied to the automobile industry, the quality of the shock absorber can directly influence the smoothness and the comfort of the automobile, when the automobile runs on an uneven road surface, the wheels can receive the impact force from the ground, the impact force is transmitted to the automobile body through the spring in the suspension system, the vibration of the automobile body is caused, the vibration caused by the vibration is absorbed by the action of the shock absorber, and the stability and the comfort of the running of the automobile are improved.
At present, the structure of the lifting ring in the double-cylinder shock absorber on the market adopts the direct welding of the bottom valve seat of the cylinder body and the lifting ring, so that the cylinder body of the shock absorber is longer to meet the stroke, more materials and vibration-damping oil are consumed, the cost is increased, and the weight is heavier.
Disclosure of Invention
The invention aims to provide a connecting rod hanging ring type double-cylinder shock absorber, which solves the technical problem of cost increase caused by longer cylinder in the prior art.
In order to achieve the aim, the invention provides a connecting rod hanging ring type double-cylinder shock absorber which comprises a piston rod, a guide sleeve, an oil storage cylinder, a piston rod valve system and a connecting rod, wherein the guide sleeve is arranged in the head end of the oil storage cylinder, the connecting rod is arranged at the tail end of the oil storage cylinder, the piston rod is movably connected with the oil storage cylinder through the guide sleeve, and the piston rod valve system is arranged at one end of the piston rod extending into the oil storage cylinder.
Further, an end cover is arranged at the outer part of the head end of the oil storage cylinder, a guide sleeve is arranged between the end cover and the oil storage cylinder, an oil seal is arranged between the end cover and one end of the guide sleeve, a spacer bush is arranged at the other end of the guide sleeve, and a fixing ring is arranged at the outer side of the spacer bush.
Further, a working cylinder is arranged in the oil storage cylinder, an air storage chamber is formed between the working cylinder and the oil storage cylinder, nitrogen and damping oil are arranged in the air storage chamber, and the damping oil is arranged in the working cylinder.
Further, a bottom valve seat is arranged at the bottom of the oil storage cylinder, a connecting rod is fixedly connected to the outer side of the bottom valve seat, a valve system is connected to the inner side of the bottom valve seat, the valve system is arranged in a working cylinder of the oil storage cylinder, a plurality of throttle valve plates are arranged in a valve body of the valve system, an oil inlet channel and an oil outlet channel are formed in the valve body of the valve system, and the working cylinder is communicated with the air storage chamber through the oil inlet channel and the oil outlet channel.
Further, a hanging ring is arranged on the connecting rod, and a lower bushing is arranged on the hanging ring.
Further, the piston rod valve system is arranged on the piston rod through a nut, a plurality of throttle valve plates are arranged in a valve body of the piston rod valve system, and an oil inlet channel and an oil outlet channel are formed in the valve body of the piston rod valve system.
Based on the technical scheme, the invention can produce the following beneficial effects:
according to the connecting rod hanging ring type double-cylinder shock absorber, the connecting rods are used for welding two ends to replace the length of the redundant cylinder body, so that the purposes of saving materials, reducing cost and reducing weight are achieved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
in the figure: 1. a piston rod; 2. an end cap; 3. a guide sleeve; 4. a spacer bush; 5. a nut; 6. an oil storage cylinder; 7. an oil seal; 8. a fixing ring; 9. a piston rod valve train; 10. nitrogen gas; 11. damping oil; 12. a valve train; 13. a bottom valve seat; 14. a connecting rod; 15. a hanging ring; 16. and a lower bushing.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a connecting rod suspension ring type double-cylinder shock absorber of the present invention is described in further detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the connecting rod suspension ring type double-cylinder shock absorber provided by the invention is characterized by comprising a piston rod 1, a guide sleeve 3, an oil storage cylinder 6, a piston rod valve system 9 and a connecting rod 14, wherein the guide sleeve 3 is arranged in the head end of the oil storage cylinder 6, the connecting rod 14 is arranged at the tail end of the oil storage cylinder 6, the piston rod 1 is movably connected with the oil storage cylinder 6 through the guide sleeve 3, and the piston rod valve system 9 is arranged at one end of the piston rod 1 extending into the oil storage cylinder 6.
An end cover 2 is arranged at the outer part of the head end of the oil storage cylinder 6, a guide sleeve 3 is arranged between the end cover 2 and the oil storage cylinder 6, an oil seal 7 is arranged between the end cover 2 and one end of the guide sleeve 3, a spacer bush 4 is arranged at the other end of the guide sleeve 3, and a fixing ring 8 is arranged at the outer side of the spacer bush 4.
The working cylinder is arranged in the oil storage cylinder 6, an air storage chamber is formed between the working cylinder and the oil storage cylinder 6, nitrogen 10 and damping oil 11 are arranged in the air storage chamber, and the damping oil 11 is arranged in the working cylinder.
The nitrogen 17 is added into the gas storage chamber formed between the working cylinder and the oil storage cylinder 6, so that the automobile can be more stable in the running process, the nitrogen 17 is not easy to mix with the vibration reduction oil 11, and the foaming of oil can be effectively prevented.
The oil inlet hole is formed in the guide sleeve 3 and is connected with the oil storage cylinder 6, and the guide sleeve 3 can enable certain pressure to be kept in the working cylinder all the time, so that the shock absorption effect of the shock absorber is better.
The bottom of the oil storage cylinder 6 is provided with a bottom valve seat 13, the outer side of the bottom valve seat 13 is fixedly connected with a connecting rod 14, the inner side of the bottom valve seat 13 is connected with a valve system 12, the valve system 12 is arranged in a working cylinder of the oil storage cylinder 6, a plurality of throttle valves are arranged in a valve body of the valve system 12, an oil inlet channel and an oil outlet channel are formed in the valve body of the valve system 12, and the working cylinder is communicated with the air storage chamber through the oil inlet channel and the oil outlet channel.
The connecting rod 14 is provided with a hanging ring 15, and a lower bushing 16 is arranged on the hanging ring 15.
The piston rod valve system 9 is arranged on the piston rod 1 through the nut 5, a plurality of throttle plates are arranged in the valve body of the piston rod valve system 9, and an oil inlet channel and an oil outlet channel are formed in the valve body of the piston rod valve system 9.
The piston rod valve system 9 and the valve system 12 are provided with four throttle valve plates which are mutually overlapped, so that the pressure in the working cylinder can be kept to be constant, and the flowing speed of oil can be slowed down.
The working principle of the invention is as follows:
when the shock absorber is compressed during operation, the piston rod 1 in the working cylinder moves downwards, the volume in the lower cavity of the working cylinder is reduced, the oil pressure is increased, when the oil pressure reaches a preset value, the damping oil 11 in the lower cavity pushes away the throttle valve plate in the piston rod valve system 9, so that the damping oil 11 flows into the upper cavity of the working cylinder through the oil inlet channel, the volume of the upper cavity is smaller than that of the lower cavity due to the fact that the piston rod 1 occupies a part of space in the upper cavity of the working cylinder, a part of damping oil 11 pushes away the guide sleeve 3 at the top of the working cylinder to flow into the oil storage cylinder 6, when the damping oil 11 in the lower cavity flows into the air storage chamber through the valve system 12, the throttle valve plate in the valve system 12 slows down the flowing effect of the oil through adjusting the flowing area of the damping oil 11, and therefore the oil speed flowing into the air storage chamber is slowed down, the damping oil 11 and nitrogen 10 are prevented from being greatly impacted, foaming of the damping oil 11 is prevented, the bottom valve seat 13 is arranged at the bottom of the oil storage cylinder 6, the damping oil 11 in the working cylinder is ensured to flow circularly, and the pressure in the working cylinder is ensured.
The bottom of the oil storage cylinder 6 is welded with two ends by using a connecting rod 14 to replace the length of the redundant cylinder body, thereby achieving the purposes of saving materials, reducing cost and reducing weight.
It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (6)

1. The utility model provides a connecting rod rings formula double-cylinder shock absorber, its characterized in that includes piston rod (1), uide bushing (3), store oil drum (6), piston rod valve train (9) and connecting rod (14), install uide bushing (3) in the head end of storing oil drum (6), connecting rod (14) are installed to the end of storing oil drum (6), and piston rod (1) carries out swing joint with storing oil drum (6) through uide bushing (3), and piston rod (1) are at one end installation piston rod valve train (9) that stretches into storing oil drum (6).
2. The connecting rod hanging ring type double-cylinder shock absorber according to claim 1, wherein an end cover (2) is arranged at the outer part of the head end of the oil storage cylinder (6), a guide sleeve (3) is arranged between the end cover (2) and the oil storage cylinder (6), an oil seal (7) is arranged between the end cover (2) and one end of the guide sleeve (3), a spacer bush (4) is arranged at the other end of the guide sleeve (3), and a fixing ring (8) is arranged at the outer side of the spacer bush (4).
3. The connecting rod lifting ring type double-cylinder shock absorber according to claim 1, wherein a working cylinder is arranged in the oil storage cylinder (6), an air storage chamber is formed between the working cylinder and the oil storage cylinder (6), nitrogen (10) and vibration reduction oil (11) are arranged in the air storage chamber, and the vibration reduction oil (11) is arranged in the working cylinder.
4. The connecting rod hanging ring type double-cylinder shock absorber according to claim 1 is characterized in that a bottom valve seat (13) is arranged at the bottom of the oil storage cylinder (6), a connecting rod (14) is fixedly connected to the outer side of the bottom valve seat (13), a valve system (12) is connected to the inner side of the bottom valve seat (13), the valve system (12) is arranged in a working cylinder of the oil storage cylinder (6), a plurality of throttle valves are arranged in a valve body of the valve system (12), an oil inlet channel and an oil outlet channel are formed in the valve body of the valve system (12), and the working cylinder is communicated with the air storage chamber through the oil inlet channel and the oil outlet channel.
5. A connecting rod suspension ring type double-cylinder shock absorber according to claim 1, wherein a suspension ring (15) is arranged on the connecting rod (14), and a lower bushing (16) is arranged on the suspension ring (15).
6. The connecting rod lifting ring type double-cylinder shock absorber according to claim 1 is characterized in that the piston rod valve system (9) is installed on the piston rod (1) through a nut (5), a plurality of throttle valve plates are installed in a valve body of the piston rod valve system (9), and an oil inlet channel and an oil outlet channel are formed in the valve body of the piston rod valve system (9).
CN202410156904.7A 2024-02-04 2024-02-04 Connecting rod hanging ring type double-cylinder shock absorber Pending CN117889175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410156904.7A CN117889175A (en) 2024-02-04 2024-02-04 Connecting rod hanging ring type double-cylinder shock absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410156904.7A CN117889175A (en) 2024-02-04 2024-02-04 Connecting rod hanging ring type double-cylinder shock absorber

Publications (1)

Publication Number Publication Date
CN117889175A true CN117889175A (en) 2024-04-16

Family

ID=90644279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410156904.7A Pending CN117889175A (en) 2024-02-04 2024-02-04 Connecting rod hanging ring type double-cylinder shock absorber

Country Status (1)

Country Link
CN (1) CN117889175A (en)

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