CN112797104A - Micro-amplitude response structure and shock absorber - Google Patents

Micro-amplitude response structure and shock absorber Download PDF

Info

Publication number
CN112797104A
CN112797104A CN202110149401.3A CN202110149401A CN112797104A CN 112797104 A CN112797104 A CN 112797104A CN 202110149401 A CN202110149401 A CN 202110149401A CN 112797104 A CN112797104 A CN 112797104A
Authority
CN
China
Prior art keywords
sub
inner cavity
valve
micro
amplitude response
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
CN202110149401.3A
Other languages
Chinese (zh)
Inventor
黄飞铭
兰宗太
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 CN202110149401.3A priority Critical patent/CN112797104A/en
Publication of CN112797104A publication Critical patent/CN112797104A/en
Pending legal-status Critical Current

Links

Images

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
    • F16F9/10—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
    • F16F9/165—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 two or more cylinders in line, i.e. in series connection
    • 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
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
    • F16F9/3485—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features of supporting elements intended to guide or limit the movement of the annular discs
    • 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
    • F16F9/516—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 resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping

Landscapes

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

Abstract

The invention discloses a micro-amplitude response structure, which comprises a connecting piece and a first cylinder barrel, wherein the connecting piece is connected with the first cylinder barrel through threads, an inner cavity is formed between the connecting piece and the first cylinder barrel, and a valve assembly and a floating piston which are matched with the inner cavity are sequentially arranged in the inner cavity from top to bottom; the valve assembly and the floating piston divide the inner cavity into a first sub inner cavity, a second sub inner cavity and a third sub inner cavity from top to bottom in sequence, the valve assembly is embedded on the first cylinder, a first through hole is formed in the valve assembly and is used for communicating the first sub inner cavity with the second sub inner cavity, and a second through hole is formed in the bottom of the first cylinder; the invention has the advantages that the micro-amplitude structure is arranged in the shock absorber, so that the damping force of the oil is reduced, and the corresponding speed of the oil is increased; the comfort of the vehicle in the driving process is improved, and the control performance of the vehicle cannot be influenced.

Description

Micro-amplitude response structure and shock absorber
Technical Field
The invention relates to the technical field of automobile shock absorption, in particular to a micro-amplitude response structure and a shock absorber.
Background
Conventional fluid bumper shock absorber restores the end and does not have slight amplitude response mechanism, and when the vehicle went, when meetting the uneven road surface such as cobblestone road, the vibration of road surface transmission can't be absorbed completely to the bumper shock absorber, and remaining vibration transmits the automobile body, can cause great influence to the travelling comfort of vehicle.
Disclosure of Invention
The invention aims to provide a micro-amplitude response structure and a shock absorber, wherein the micro-amplitude response structure is additionally arranged in the shock absorber, and the micro-amplitude response structure and a shock absorber restoring valve are connected in parallel in a mode of arranging a third through hole on a piston rod, so that an oil liquid passage is increased, and the comfort in the driving process of a vehicle is improved.
The invention is realized by the following technical scheme:
a micro-amplitude response structure comprises a connecting piece and a first cylinder barrel, wherein the bottom of the connecting piece is connected with the top of the first cylinder barrel, an inner cavity is formed between the connecting piece and the first cylinder barrel, and a valve assembly and a floating piston which are matched with the inner cavity are sequentially arranged in the inner cavity from top to bottom; the valve assembly and the floating piston divide the inner cavity into a first sub inner cavity, a second sub inner cavity and a third sub inner cavity from top to bottom in sequence, the valve assembly is embedded on the first cylinder, a first through hole is formed in the valve assembly and is used for communicating the first sub inner cavity with the second sub inner cavity, and a second through hole is formed in the bottom of the first cylinder;
when the micro-amplitude response structure is restored, oil flows into the first sub-inner cavity, the hydraulic pressure in the first sub-inner cavity is increased, the oil flows into the second sub-inner cavity through the first through hole in the valve assembly under the action of the hydraulic pressure, the valve assembly is used for slowing down the flow of the oil to generate damping force, the oil in the second sub-inner cavity is increased, the pressure difference formed by the oil and the third sub-inner cavity is increased, the oil in the second sub-inner cavity pushes the floating piston to move downwards under the action of the pressure difference until the floating piston is contacted with the bottom of the first cylinder barrel, the floating piston stops moving, the hydraulic pressure in the first sub-inner cavity is equal to the hydraulic pressure in the second sub-inner cavity, and the restoration is finished;
when the micro-amplitude response structure is compressed, oil flows into the micro-amplitude structure through the second through hole, the third sub-inner cavity is formed between the floating piston and the first cylinder, pressure difference is formed between the third sub-inner cavity and the second sub-inner cavity, the floating piston is pushed to move upwards under the action of the pressure difference until the top of the floating piston is contacted with the bottom of the valve assembly, the floating piston stops moving, the hydraulic pressure of the third sub-inner cavity is equal to that of the second sub-inner cavity and the pressure of the first sub-inner cavity, and the compression is finished.
The invention discloses a micro-amplitude structure and a shock absorber, wherein a piston rod is arranged in the shock absorber, a piston rod is arranged in a third through hole, and the shock absorber is used for absorbing the heat of the vibration generated by the automobile when the automobile passes through the rugged road surface.
Preferably, the bottom of the first cylinder barrel is provided with a plurality of second through holes.
The second through hole is used for connecting the third sub-inner cavity with the second sub-outer cavity, and the third through holes are formed to increase the oil flowing speed between the third sub-inner cavity and the second sub-outer cavity.
Preferably, the valve module includes a valve body, a first valve plate and a second valve plate, the first through hole is arranged on the valve body, the first valve plate and the second valve plate are respectively and fixedly arranged at two ends of the valve body and cover the first through hole, and the first valve plate, the valve body and the second valve plate are fixedly arranged through threaded connection.
Preferably, the valve assembly is provided with a plurality of first valve plates and a plurality of second valve plates.
The first valve plate and the second valve plate are arranged in different quantities, and the damping force of oil flowing through the first through hole is increased or reduced.
Preferably, a plurality of first through holes are formed in the valve body.
The damping force of oil flowing from the first sub-inner cavity to the second sub-inner cavity can be reduced by arranging the plurality of first through holes.
Preferably, the floating piston comprises a buffer block and a floating piston body, and the buffer block is embedded at the bottom of the floating piston body.
Preferably, be equipped with on the floating piston body slide bearing, the third subchamber lateral wall be equipped with slide rail that slide bearing assorted.
And sliding bearings are arranged on the floating piston and the third sub-inner cavity in the first cylinder barrel, and the floating piston moves upwards or downwards under the action of oil hydraulic pressure mainly in a sliding mode.
The invention also discloses a shock absorber, which comprises the micro-amplitude response structure and a second cylinder, wherein the micro-amplitude response structure is arranged in the second cylinder and forms an outer cavity with the second cylinder, the micro-amplitude response structure is connected with a piston rod in a threaded connection mode, the outer diameter of the recovery valve is matched with the inner diameter of the second cylinder, the outer cavity is sequentially divided into a first sub outer cavity and a second sub outer cavity from top to bottom by the recovery valve, a third through hole is formed in the piston rod, and the third through hole is used for communicating the first sub outer cavity with the first sub inner cavity in the micro-amplitude response structure.
Preferably, the restoring valve is arranged at the top end of the micro-amplitude response structure and is fixedly connected with the micro-amplitude response structure in a threaded connection mode.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. by adopting the micro-amplitude response structure and the shock absorber provided by the invention, the micro-amplitude structure is arranged in the shock absorber, so that the damping force of oil is reduced, and the corresponding speed of the oil is increased;
2. by adopting the micro-amplitude response structure and the shock absorber provided by the invention, the comfort of the vehicle in the driving process is improved, and the control performance of the vehicle is not influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a micro-amplitude structure
FIG. 2 is a schematic view of the valve assembly in an extended configuration
FIG. 3 is a schematic view of the valve assembly in compression
FIG. 4 is a schematic view of a floating piston structure
FIG. 5 is a schematic view of the shock absorber during the return stroke
FIG. 6 is a schematic view of the shock absorber during the compression stroke
Reference numerals:
1. a connecting member; 2. a valve assembly; 3. a first cylinder; 4. a second through hole; 5. a first sub-interior cavity; 6. a first through hole; 7. a second sub-interior cavity; 8. a floating piston; 9. a third sub-inner cavity; 10. a first valve plate; 11. a second valve plate; 12. a floating piston body; 13. a sliding bearing; 14. a buffer block; 15. a third through hole; 16. a first sub-outer cavity; 17. a recovery valve; 18. a second cylinder; 19. a second sub-outer cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example one
The embodiment discloses a micro-amplitude response structure, as shown in fig. 1, the micro-amplitude response structure comprises a connecting piece 1 and a first cylinder 3, the connecting piece 1 is connected with the first cylinder 3 through threads, an inner cavity is formed between the connecting piece 1 and the first cylinder 3, and the inner cavity is sequentially provided with a valve component 2 and a floating piston 8 which are matched with the inner cavity from top to bottom; the valve component 2 and the floating piston 8 divide the inner cavity into a first sub inner cavity 5, a second sub inner cavity 7 and a third sub inner cavity 9 from top to bottom in sequence, the valve component 2 is embedded on the first cylinder 3, the valve component 2 is provided with a first through hole 6, the first through hole 6 is used for communicating the first sub inner cavity 5 with the second sub inner cavity 7, when the shock absorber performs piston movement, oil flows into the first sub inner cavity 5 through a third through hole 15 of the piston rod, pressure difference is formed between the first sub inner cavity 5 and the second sub inner cavity 7 due to the blocking of the valve component 2, the oil generates damping force by stretching the first through hole 6 of the valve component 2 or the valve component 2, mechanical energy which can not be completely absorbed by the recovery valve 17 is absorbed and is converted into heat energy, the bottom of the first cylinder 3 is provided with a second through hole 4, the bottom of the first cylinder 3 is provided with a plurality of second through holes 4, the second through hole 4 is mainly used for communicating oil in the third sub-inner cavity 9 with oil in the second sub-outer cavity 19.
The valve component 2 comprises a valve body, a first valve plate 10 and a second valve plate 11, wherein the first through hole 6 is formed in the valve body, the first valve plate 10 and the second valve plate 11 are fixedly arranged at two ends of the valve body respectively and cover the first through hole 6, the first valve plate 10, the valve body and the second valve plate 11 are fixedly arranged through threaded connection, the valve component 2 is provided with a plurality of first through holes 6, and the first valve plate 10 and the second valve plates 11 are provided with a plurality of second through holes 6.
As shown in fig. 2, when the valve assembly is in a stretching stroke, the first valve plate 10 and the second valve plate 11 are not deformed and are attached to the valve body in a low-speed state, and oil flows from the first sub-inner cavity 5 to the second sub-inner cavity 7 through the third through hole 15 and the groove of the valve body; the second valve plate 11 at the lower end of the valve body in the medium and high speed states is impacted by oil to generate deformation, a gap is formed between the second valve plate and the valve body, and the oil flows from the first sub-inner cavity 5 to the second sub-inner cavity 7 through the first through hole 6 and the gap between the second valve plate 11 and the valve body; as shown in fig. 3, when the valve assembly is in a compression stroke, the low-speed valve plate assembly does not deform and is attached to the valve body, and oil flows from the second sub-inner cavity 7 to the first sub-inner cavity 5 through the first through hole 6 and the outer groove of the valve body; the first valve plate 10 at the upper end of the valve body in the medium and high speed states is impacted by oil liquid to generate deformation, a gap is formed between the first valve plate 10 and the valve body, and the oil liquid flows from the second sub-inner cavity 7 to the first sub-inner cavity 5 through the first through hole 6 and the gap between the first valve plate 10 and the valve body.
As shown in fig. 4, the floating piston 8 includes a buffer block 14 and a floating piston body 12, the buffer block 14 is embedded at the bottom of the floating piston 8, a sliding bearing 13 is arranged on the floating piston body 12, a sliding rail matched with the sliding bearing 13 is arranged on the side wall of the third sub-cavity, the floating piston 8 moves back and forth in the cavity, and the oil quantity passing through the valve assembly 2 is controlled by adjusting the movement stroke of the floating piston 8, so as to control the working stroke of the valve assembly 2.
Example two
The embodiment discloses a shock absorber, as shown in fig. 5 or fig. 6, a micro-amplitude response structure disclosed in the first embodiment is adopted, the structure further includes a second cylinder 18, the micro-amplitude response structure is arranged inside the second cylinder 18 and forms an outer cavity with the second cylinder 18, the micro-amplitude response structure is connected with a piston rod through a threaded connection mode, the outer diameter of a recovery valve 17 is matched with the inner diameter of the second cylinder 18, the outer cavity is sequentially divided into a first sub outer cavity 16 and a second sub outer cavity 19 from top to bottom through the recovery valve 17, a third through hole 15 is formed in the piston rod, the third through hole 15 is used for communicating the first sub outer cavity 16 with a first sub inner cavity 5 in the micro-amplitude response structure, and the recovery valve 17 is arranged at the top end of the micro-amplitude response structure and is fixedly connected with the micro-amplitude response structure through a threaded connection mode.
The working principle is as follows:
as shown in fig. 5, which is a schematic view of the shock absorber during the process of restoring the shock absorber, when the shock absorber is in the process of restoring, oil in the first sub-outer cavity 16 flows into the first sub-inner cavity 5 through the third through hole 15 in the piston rod, the pressure of the first sub-inner cavity 5 is increased due to the inflow of the oil, the pressure of the first sub-inner cavity 5 is greater than the pressure in the second sub-inner cavity, the oil flows into the second sub-inner cavity 7 from the first sub-inner cavity 5 through the first through hole 6, and when the oil flows through the valve assembly 2, the combination of the first valve plate 10 and the second valve plate 11 in the valve assembly 2 blocks and slows down the flow of the oil, so as to generate a damping force; after the oil liquid is left in the second sub-inner cavity 7, the oil liquid in the second sub-inner cavity 7 is increased, the hydraulic pressure is increased, because the lower end of the first cylinder barrel 3 is provided with the second through hole 4 communicated with the second cylinder barrel 18, the hydraulic pressure of the third sub-inner cavity 9 is communicated with the second sub-outer cavity 19, the oil liquid flows out from the second through hole 4, the pressure of the third sub-inner cavity 9 is smaller than that of the second sub-inner cavity 7, the floating piston 8 moves downwards due to the pushing of the hydraulic pressure, and the space of the third sub-inner cavity 9 is reduced; the floating piston 8 moves to the bottom end of the first cylinder barrel 3, when the floating piston 8 contacts the bottom of the first cylinder barrel 3, the floating piston 8 stops moving, the buffer block 14 arranged in the middle of the floating piston 8 deforms to block the through hole in the bottom of the cylinder barrel, the third sub-inner cavity 9 completely disappears at the moment, the hydraulic pressure of the first sub-inner cavity 5, the hydraulic pressure of the second sub-inner cavity 7 and the hydraulic pressure of the outer cavity are equal, and the recovery stroke is finished.
As shown in fig. 6, when the shock absorber is in a compression stroke, oil in the second sub outer cavity 19 flows into the micro-amplitude structure through the second through hole 4 to form a third sub cavity, the hydraulic pressure is increased due to the fact that the oil in the second sub outer cavity 19 continuously flows into the third sub cavity and increases, the floating piston 8 is pushed to move towards the second sub inner cavity 7, the volume of the second sub inner cavity 7 is reduced due to the pushing of the floating piston 8, the internal pressure is increased, the oil flows towards the first sub inner cavity 5 through the valve assembly 2, when the oil flows through the valve assembly 2, the combination of the first valve plate 10 and the second valve plate 11 in the valve assembly 2 blocks and slows down the flow of the oil, and damping force is generated; when the floating piston 8 contacts with the lower end of the valve component 2, the volume of the third sub-cavity can not be increased any more, the internal hydraulic pressure of the third sub-cavity is equal to that of the first sub-inner cavity 5, the second sub-inner cavity 7 and the outer cavity, and the compression stroke is finished.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. The micro-amplitude response structure is characterized by comprising a connecting piece (1) and a first cylinder barrel (3), wherein the bottom of the connecting piece (1) is connected with the top of the first cylinder barrel (3), an inner cavity is formed between the connecting piece (1) and the first cylinder barrel (3), and a valve component (2) and a floating piston (8) which are matched with the inner cavity are sequentially arranged in the inner cavity from top to bottom; the inner cavity is sequentially divided into a first sub-inner cavity (5), a second sub-inner cavity (7) and a third sub-inner cavity (9) by the valve component (2) and the floating piston (8) from top to bottom, the valve component (2) is embedded on the first cylinder (3), a first through hole (6) is formed in the valve component (2), the first through hole (6) is used for communicating the first sub-inner cavity (5) with the second sub-inner cavity (7), and a second through hole (4) is formed in the bottom of the first cylinder (3);
when the micro-amplitude response structure is restored, oil liquid flows into the first sub-inner cavity (5), the hydraulic pressure in the first sub-inner cavity (5) is increased, the oil liquid flows into the second sub-inner cavity (7) through the first through hole (6) in the valve component (2) under the action of the hydraulic pressure, the valve component (2) is used for slowing down the flow of the oil liquid to generate damping force, the oil liquid in the second sub-inner cavity (7) is increased, the pressure difference formed by the oil liquid and the third sub-inner cavity (9) is increased, the oil liquid in the second sub-inner cavity (7) pushes the floating piston (8) to move downwards under the action of the pressure difference until the floating piston (8) is contacted with the bottom of the first cylinder barrel (3), the floating piston (8) stops moving, and the hydraulic pressure of the first sub-inner cavity (5) is equal to the hydraulic pressure of the second sub-inner cavity (7), ending the restoration;
when the micro-amplitude response structure is compressed, oil liquid flows into the micro-amplitude structure through the second through hole (4), the floating piston (8) and the first cylinder barrel form the third sub-inner cavity (9), the third sub-inner cavity (9) and the second sub-inner cavity (7) form pressure difference, under the action of the pressure difference, the floating piston (8) is pushed to move upwards until the top of the floating piston (8) is contacted with the bottom of the valve assembly (2), the floating piston (8) stops moving, the hydraulic pressure of the third sub-inner cavity (9) is equal to that of the second sub-inner cavity (7) and the first sub-inner cavity (5), and the compression is finished.
2. A structure with a slight amplitude response as in claim 1, characterized in that the bottom of the first cylinder (3) is provided with a plurality of second through holes (4).
3. The micro-amplitude response structure according to claim 1, wherein the valve assembly (2) comprises a valve body, a first valve plate (10) and a second valve plate (11), the first through hole (6) is formed in the valve body, the first valve plate (10) and the second valve plate (11) are respectively and fixedly arranged at two ends of the valve body and cover the first through hole (6), and the first valve plate (10), the valve body and the second valve plate (11) are fixedly arranged through threaded connection.
4. A structure with a slight amplitude response as claimed in claim 3, characterized in that said valve member (2) is provided with a plurality of said first flaps (10) and a plurality of said second flaps (11).
5. A slight amplitude response construction according to claim 3, characterised in that the valve body is provided with a number of first through holes (6).
6. A slight amplitude response structure as claimed in claim 1, characterised in that the floating piston (8) comprises a damping block (14) and a floating piston body (12), the damping block (14) being embedded in the bottom of the floating piston body (12).
7. A slight amplitude response structure as claimed in claim 6 characterised in that the sliding bearing (13) is provided on the body of the floating piston (8) and the sliding track matching the sliding bearing (13) is provided on the side wall of the third sub-chamber.
8. A shock absorber, comprising the micro-amplitude response structure and the second cylinder (18) as set forth in any one of claims 1 to 7, wherein the micro-amplitude response structure is disposed inside the second cylinder (18) and forms an outer cavity with the second cylinder (18), the micro-amplitude response structure is connected with the piston rod by a threaded connection, the outer diameter of the restoring valve (17) is matched with the inner diameter of the second cylinder (18), the outer cavity is sequentially divided into a first sub outer cavity (16) and a second sub outer cavity (19) by the restoring valve (17), the piston rod is provided with a third through hole (15), and the third through hole (15) is used for communicating the first sub outer cavity (16) with the first sub inner cavity (5) in the micro-amplitude response structure.
9. A shock absorber according to claim 8, wherein: the restoring valve (17) is arranged at the top end of the micro-amplitude response structure and is fixedly connected with the micro-amplitude response structure in a threaded connection mode.
CN202110149401.3A 2021-02-03 2021-02-03 Micro-amplitude response structure and shock absorber Pending CN112797104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110149401.3A CN112797104A (en) 2021-02-03 2021-02-03 Micro-amplitude response structure and shock absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110149401.3A CN112797104A (en) 2021-02-03 2021-02-03 Micro-amplitude response structure and shock absorber

Publications (1)

Publication Number Publication Date
CN112797104A true CN112797104A (en) 2021-05-14

Family

ID=75813887

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110149401.3A Pending CN112797104A (en) 2021-02-03 2021-02-03 Micro-amplitude response structure and shock absorber

Country Status (1)

Country Link
CN (1) CN112797104A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0324334A (en) * 1989-06-20 1991-02-01 Kayaba Ind Co Ltd Damping valve of hydraulic shock absorber
EP1906046A1 (en) * 2006-09-28 2008-04-02 Kayaba Industry Co., Ltd. Base valve mechanism for shock absorber
CN101936361A (en) * 2009-06-30 2011-01-05 株式会社昭和 Hydraulic buffer
JP2012002338A (en) * 2010-06-21 2012-01-05 Showa Corp Hydraulic shock absorber
CN203730633U (en) * 2014-01-10 2014-07-23 浙江德鹏机械有限公司 Variable compression damping shock absorber
CN103982585A (en) * 2014-06-04 2014-08-13 成都九鼎科技(集团)有限公司 Dual-acting low-speed two-stage valve system structure of shock absorber
CN204041830U (en) * 2014-07-01 2014-12-24 广州汽车集团股份有限公司 Vibration damper, vehicle suspension and vehicle
CN204372028U (en) * 2014-12-22 2015-06-03 吉林大学 Amplitude is correlated with damping characteristic vibration damper
CN105276065A (en) * 2014-07-01 2016-01-27 广州汽车集团股份有限公司 Shock absorber, vehicle suspension and vehicle
CN214617635U (en) * 2021-02-03 2021-11-05 四川宁江山川机械有限责任公司 Micro-amplitude response structure and shock absorber

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0324334A (en) * 1989-06-20 1991-02-01 Kayaba Ind Co Ltd Damping valve of hydraulic shock absorber
EP1906046A1 (en) * 2006-09-28 2008-04-02 Kayaba Industry Co., Ltd. Base valve mechanism for shock absorber
CN101936361A (en) * 2009-06-30 2011-01-05 株式会社昭和 Hydraulic buffer
JP2012002338A (en) * 2010-06-21 2012-01-05 Showa Corp Hydraulic shock absorber
CN203730633U (en) * 2014-01-10 2014-07-23 浙江德鹏机械有限公司 Variable compression damping shock absorber
CN103982585A (en) * 2014-06-04 2014-08-13 成都九鼎科技(集团)有限公司 Dual-acting low-speed two-stage valve system structure of shock absorber
CN204041830U (en) * 2014-07-01 2014-12-24 广州汽车集团股份有限公司 Vibration damper, vehicle suspension and vehicle
CN105276065A (en) * 2014-07-01 2016-01-27 广州汽车集团股份有限公司 Shock absorber, vehicle suspension and vehicle
CN204372028U (en) * 2014-12-22 2015-06-03 吉林大学 Amplitude is correlated with damping characteristic vibration damper
CN214617635U (en) * 2021-02-03 2021-11-05 四川宁江山川机械有限责任公司 Micro-amplitude response structure and shock absorber

Similar Documents

Publication Publication Date Title
CN2811665Y (en) Single-chamber oil-gas separation type oil-gas spring with nonlinear characteristics
CN103802626A (en) Vehicle suspension system
CN201258938Y (en) Inverted rear shock absorber
CN201273355Y (en) Self-protecting variable-damping hydraulic buffer
CN214617635U (en) Micro-amplitude response structure and shock absorber
CN105134855A (en) Novel oil-gas damper
CN212225857U (en) Integrated double-air-chamber oil-gas damper
CN112797104A (en) Micro-amplitude response structure and shock absorber
CN213870882U (en) Compression buffer structure of shock absorber
CN102996696A (en) Rear suspension oil cylinder for heavy-duty industrial mining vehicle
CN108488297A (en) A kind of hydro-pneumatic spring
CN201513505U (en) Automotive shock absorber piston
CN203730633U (en) Variable compression damping shock absorber
CN110206843A (en) A kind of twin-tub cylinder double chamber hydragas spring
CN208503339U (en) A kind of automobile double Hydraulic shock absorber of high leakproofness
US11434968B2 (en) Vehicle shock absorber
CN208816583U (en) A kind of hydro-pneumatic spring
CN2609810Y (en) Elastic rubber buffer for passenger car
CN113251095A (en) Drum type hydraulic shock absorber with high-pressure air bag
CN102705422A (en) Improved structure of oil pressure buffer
CN210510092U (en) High-grade self-adaptive shock absorber
CN111442049A (en) Integrated double-air-chamber oil-gas damper and working method
CN107989947B (en) Multi-piston damping adjustable shock absorber mechanism
CN216478638U (en) Shock absorber recovery buffer mechanism and shock absorber
CN202100643U (en) Double-barrel shock absorber with high additional compression resistance

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination