CN109780117A - It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer - Google Patents
It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer Download PDFInfo
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- CN109780117A CN109780117A CN201910266696.5A CN201910266696A CN109780117A CN 109780117 A CN109780117 A CN 109780117A CN 201910266696 A CN201910266696 A CN 201910266696A CN 109780117 A CN109780117 A CN 109780117A
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- piston
- cylinder
- throttling
- springing
- fixed
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Classifications
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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
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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
- F16F9/32—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
- F16F9/50—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
Abstract
It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer, belong to liquid-springing technical field.Including piston cylinder (5), piston rod (1) one end is connect with the fixed piston (4) in piston cylinder (5), the other end is drawn from piston cylinder (5) port, it is characterized by: being arranged with movable piston (3) in the outer ring of piston rod (1), movable piston (3) is bonded or separates with fixed piston (4) with the movement of piston rod (1)；It is provided on the inner wall of piston cylinder (5) throttling channel (7), throttling channel (7) and movable piston (3) or movable piston (3) after being bonded and fixed piston (4) interval form the throttling passage of hydraulic oil.In the adjustable liquid-springing piston of this damping and hydraulic buffer, by the way that movable piston is arranged, the length of throttling passage is increased when piston restores, realize the adjusting of piston damping force value, throttling channel is set simultaneously, so that piston is realized throttling when significantly moving, slows down effectiveness in vibration suppression.
Description
Technical field
It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer, belong to liquid-springing technical field.
Background technique
Liquid-springing is a kind of common damping mode of automotive field.In the output end and ontology point of hydraulic vibration damper used for vehicle
It is not mounted on vehicle body and wheel, damper piston is provided in vehicle shock absorber, on automobile occurs in the process of moving
When lower vibration, piston moves back and forth in piston cylinder, when reciprocating motion of the pistons, positioned at piston two sides hydraulic oil can with
The opposite direction of piston back and forth flows through piston by the flowing hole on piston, to play damping effect.In the prior art, hydraulic
The generally existing following defect of damper:
(1) damper piston in vehicle shock absorber is the realization pull under the drive of piston rod, however due to piston rod sheet
Body occupies volume certain in plunger shaft, therefore piston is under actual motion and the identical situation of reciprocating motion length, piston
When bar compresses and when restoring, the flow that hydraulic oil travels to and fro between piston is had differences, and piston rod is wanted when compressing by the oil mass of piston
By the oil mass of piston when being restored greater than piston rod, so that piston rod its damping force difference when moving back and forth is caused, for
It for passenger, is specifically felt as effectiveness in vibration suppression when vehicle body pitches and has differences, affect riding comfort or even running
It will cause the damage of body of a motor car when winnowing with a dustpan more serious.Therefore in plunger designs, need to adjust damping force when its recovery
Force value, when making up reciprocating motion of the pistons due to the oil mass that back and forth circulates is different bring defect.Traditional semi-active damper
Regulative mode generally realizes piston damping force value by the way of adjusting hydraulic oil viscosity or regulating piston damping hole sectional area
It adjusts, but damping force value can not be accurately arranged when traditional regulative mode lower piston restores, and a damping force value can only be arranged
Section cannot reach optimum efficiency.
(2) in the prior art, the movement speed of piston is directly proportional to the vibration degree of automobile in vehicle shock absorber, i.e. vapour
The vibration amplitude of vehicle is bigger, and the speed of reciprocating motion of the pistons is faster, and the speed for the piston that hydraulic oil flows through is also faster.However automobile
The case where will appear vibration mutation in the process of moving, if wheel touches biggish barrier or wheel precepitates into hole,
When above situation occurs, becomes larger or become smaller rapidly in the spacing short time between vehicle body and wheel, in the prior art, pass through
Electric-control system may be implemented the variation of pressure short time very greatly when effect that the flow of hydraulic oil is controlled, but automatically controlled system
Price of uniting is costly and control process is complex, and regulating effect is not ideal enough, cannot most preferably be arranged according to theoretical.Existing
Have in technology, application No. is 201820251547.2, a kind of patent name are as follows: hydraulic shock-absorption piston and liquid with combined sleeve
The Chinese patent of pressure damper discloses a kind of pass through and throttling channel is arranged, and piston only is made to realize section when significantly moving
Stream slows down the technical solution of automobile shock effect, but as above-mentioned known, since when restoring, piston rod itself needs piston
The reason of occupying a constant volume, therefore the piston of the technical solution still can cannot provide the resistance of needs in the presence of when restoring when restoring
Buddhist nun's force value only solves the complicated process program of inner cylinder fluting in practical application, does not have the possibility of practical entrucking application.
Summary of the invention
The technical problem to be solved by the present invention is overcoming the deficiencies of the prior art and provide a kind of pass through is arranged movable piston,
Movable piston increases the length of throttling passage after being bonded with fixed piston, the damping for realizing the adjusting of piston damping force value is adjustable
Liquid-springing piston and hydraulic buffer.
The technical solution adopted by the present invention to solve the technical problems is: this includes the piston cylinder full of hydraulic oil, piston
Fixed piston is provided in cylinder, piston rod one end is connected and fixed piston one end and draws from piston cylinder port, and piston rod, which drives, to be fixed
Piston moves back and forth in piston cylinder, it is characterised in that: is arranged with movable piston, movable piston in the side of the piston rod
It is slidably connected respectively with the inner wall of piston cylinder with fixed piston, at least one throttling channel is provided on the inner wall of piston cylinder；
Movable piston is bonded with the movement of piston rod with fixed piston, after movable piston and fixed piston patch, movable piston and work
The contact surface and fixed piston of plug tube and the contact surface of piston cylinder form throttling passage at throttling channel respectively, realize that throttling is logical
The superposition of road length；
Or movable piston is separated with the movement of piston rod with fixed piston, only the contact surface of fixed piston and piston cylinder is in throttling channel
Place forms throttling passage, realizes the reduction of throttling passage length.
Preferably, the piston cylinder inside and outside piston cylinder outer cylinder and piston cylinder inner cylinder by being arranged, the throttling channel
It is provided on piston cylinder inner cylinder, and throttling channel is the penetrating slot for penetrating piston cylinder inner cylinder.
Preferably, throttling channel is axially opened up along the piston cylinder inner cylinder.
Preferably, throttling channel is the uniform straight trough of width, and throttling channel is provided with a plurality of, and a plurality of throttling channel is along piston cylinder inner cylinder
It is circumferentially uniformly distributed, and a plurality of throttling channel axial length is different.
Preferably, the horizontal central line of a plurality of throttling channel is coplanar.
Preferably, the piston cylinder inner cylinder is provided with multiple and is successively arranged from inside to outside, in the same piston cylinder
Throttling slot length on cylinder is identical, the throttling channel on multiple piston cylinder inner cylinders be overlapped from outside to inside open up and from inside to outside length according to
Secondary reduction.
Preferably, the block machine limited to movable piston is fixed on the piston rod, it is living that block machine is located at activity
The outside of plug.
A kind of hydraulic buffer, it is characterised in that: be set with outer barrel of absorber in the outer side seal of the piston cylinder, subtract
Interval forms the outer oil cavity of damper between vibration device outer cylinder and piston cylinder, and piston cylinder bottom is connected to outer barrel of absorber.
Compared with prior art, the present invention has the beneficial effects that
In the adjustable liquid-springing piston of this damping and hydraulic buffer, it is provided with movable piston, the activity when piston restores
Piston is bonded the length for increasing throttling passage with fixed piston, therefore increases damping force value when piston restores, and makes up work
Bring restores the defect that damping is difficult to meet demand due to the oil mass back and forth to circulate is different when plug moves back and forth.
In the adjustable liquid-springing piston of this damping and hydraulic buffer, by the way that throttling channel is arranged, piston only is made to exist
Throttling is realized when significantly moving, and realizes optimal damping force value.
Throttling channel is provided with piston using piston cylinder inner cylinder and the inside and outside structure being set with of piston cylinder outer cylinder by piston cylinder
On cylinder inner cylinder, technology difficulty is greatly reduced.
When movable piston and fixed piston occur significantly to move in plunger shaft under the drive of piston rod, due to throttling
Slot it is different in size, therefore with piston only in plunger shaft to mobile at the end, with the throttling channel of piston only cooperation
Quantity is fewer and fewer, i.e. the flow area of hydraulic oil is smaller and smaller, therefore plays the increasing effect of damping force value.And lead to
The adjusting to throttling slot length is crossed, the accurate perception to damping force value is realized.
The thickness of movable piston and fixed piston can be arbitrarily arranged, it is achieved that the accurate tune of throttling passage length
Section, to realize the accurate adjusting to damping force value.
Pass through the inner cylinder two-piece design of damper simultaneously, punching press or injection molding can be used in technique, convenient for reducing cost
And mass production.
Detailed description of the invention
Fig. 1 is to damp adjustable 1 structural schematic diagram of liquid-springing piston embodiment.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is B-B sectional view in Fig. 1.
Fig. 4 is to damp adjustable liquid-springing piston compression process fluid circulation schematic diagram.
Fig. 5 is to damp adjustable liquid-springing piston recuperation fluid circulation schematic diagram.
Fig. 6 is to damp adjustable hydraulic buffer structural schematic diagram.
Fig. 7 is to damp adjustable 3 structural schematic diagram of liquid-springing piston embodiment.
Fig. 8 is to damp adjustable 4 structural schematic diagram of liquid-springing piston embodiment.
Fig. 9 is to damp adjustable 5 piston cylinder top view of liquid-springing piston embodiment
Wherein: 1, piston rod 2, block machine 3, movable piston 4, fixed piston 5, piston cylinder 6, piston recirculation hole 7, throttling channel
8, piston cylinder inner cylinder 9, piston cylinder outer cylinder 10, outer barrel of absorber.
Specific embodiment
Fig. 1 ~ 5 are highly preferred embodiment of the present invention, and 1 ~ 9 the present invention will be further described with reference to the accompanying drawing.
Embodiment 1:
As shown in Figure 1, a kind of adjustable liquid-springing piston of damping, including piston cylinder 5, piston cylinder 5 are cylinder closed at both ends,
It is plunger shaft in the inner cavity of piston cylinder 5, is filled with hydraulic oil in plunger shaft.Piston rod 1 is provided in plunger shaft, in piston rod
1 bottom is fixed with fixed piston 4, is also arranged with movable piston 3 in the outer ring of piston rod 1, movable piston 3 and piston rod 1 are living
Dynamic connection, movable piston 3 and fixed piston 4 are respectively positioned in plunger shaft and contact respectively with plunger shaft inner tight.Piston rod 1 is another
One end is drawn from 5 any end of piston cylinder, and fixed piston 4 moves back and forth in plunger shaft under the drive of piston rod 1.In piston
Block machine 2 is additionally provided on bar 1, block machine 2 is located at the outside of movable piston 3, when axial phase occurs for movable piston 3 and piston rod 1
When to movement, block machine 2 limits movable piston 3.
As shown in Fig. 2 ~ 3, piston cylinder 5 is formed by being arranged inside and outside piston cylinder inner cylinder 8 and piston cylinder outer cylinder 9, piston cylinder inner cylinder 8
The inner wall of outer wall and piston cylinder outer cylinder 9 fit closely, piston cylinder inner cylinder 8 can successively be arranged as needed it is multiple, in this implementation
In example, piston cylinder inner cylinder 8 is only provided with one.
Offer a plurality of throttling channel 7 on piston cylinder inner cylinder 8, throttling channel 7 is to open up and width along piston cylinder inner cylinder 8 is axial
Uniform straight trough, throttling channel 7 penetrate the barrel of piston cylinder inner cylinder 8, and the depth of throttling channel 7 is the wall thickness of piston cylinder inner cylinder 8.Section
Chute 7 is circumferentially uniformly opened up along piston cylinder inner cylinder 8 and the axial length of all throttling channels 7 is different.All throttling channels 7 are in piston cylinder
Middle line in 8 circumferential direction of inner cylinder is located on the same circumference, and the circumference is defined as to the initial position of fixed piston 4.
As shown in figure 4, being set with outer barrel of absorber 10 in the outside of piston cylinder 5, is formed and damp adjustable hydraulic buffer, this
When inner cylinder of the piston cylinder 5 as damper, at 10 upper port of outer barrel of absorber with 5 sealed set of piston cylinder, outer barrel of absorber 10
Interval forms the outer oil cavity of hydraulic buffer between piston cylinder 5, and the plunger shaft in piston cylinder 5 becomes the interior oil of hydraulic buffer
Chamber, the connection in the setting of the bottom of piston cylinder 5 conventional through-hole or valve body are realized between oil pocket and outer oil cavity.
When carrying out vehicle body vibration damping, can use the adjustable liquid-springing piston of damping and be implemented separately also can use damping
Adjustable hydraulic buffer is realized.In dashpot piston or damper shown in Fig. 4 shown in Fig. 1, according to the prior art, also need
It will be in the bottom of piston cylinder 5 or side setting gas chamber (being not drawn into figure).
Specific work process and working principle are as follows:
Piston rod 1 and piston cylinder 5 are separately fixed at the vehicle body and wheel set of automobile, are gone out at vehicle body and wheel set
It now when slight vibration, is relatively moved between piston rod 1 and piston cylinder 5, the hydraulic oil in plunger shaft can be by throttling at this time
Slot 7 back and forth circulates in the two sides of fixed piston 4 or/and movable piston 3, hydraulic oil when flowing through throttling channel 7 circulation area by
The limitation of throttling channel 7 slows down the movement speed of fixed piston 4, it is achieved that effectiveness in vibration suppression, specifically:
As shown in figure 5, fixed piston 4 gos deep into plunger shaft under the promotion of piston rod 1 when piston compression, movable piston 3 at this time
Relative motion occurs and separate fixed piston 4 with piston rod 1, due to being provided with block machine 2, when movable piston 3 is moved at block machine 2
When movable piston 3 moved together with piston rod 1 and fixed piston 4.
Fixed piston 4 is respectively cooperating with the throttling to form hydraulic oil from the contact surface of piston cylinder 5 and different throttling channels 7 at this time
Channel, the length of every throttling passage is up to the thickness of fixed piston 4 Yu 5 contact surface of piston cylinder, positioned at plunger shaft bottom
Hydraulic oil is circulated to the upper surface of fixed piston 4, hydraulic oil circulation area and length when flowing through throttling channel 7 by throttling channel 7
It is limited by throttling channel 7, slows down the movement speed of fixed piston 4, hydraulic oil is by continuing to flow to work after fixed piston 4
Piston 3 is provided with several piston recirculation holes 6 through its upper and lower end face, and piston recirculation hole 6 and section on movable piston 3
The sum of circulation area of chute 7 is much larger than the area of throttling channel 7, therefore hydraulic oil can flow through activity by piston recirculation hole 6
Piston 3, and movable piston 3 will not generate the effect of second throttle to hydraulic oil at this time.
As shown in fig. 6, the hydraulic oil positioned at plunger shaft top can pass through movable piston 3 and fix when piston rod 1 is restored
Piston 4 flow to the bottom of plunger shaft, can be with activity when being moved at movable piston 3 under drive of the fixed piston 4 in piston rod 1
Piston 3 is bonded, the piston flow that fixed piston 4 will open up on movable piston 3 after movable piston 3 is bonded completely with fixed piston 4
After through-hole 6 is blocked, therefore movable piston 3 is bonded with fixed piston 4, the contact surface of movable piston 3 and piston cylinder 5 and solid
The contact surface of fixed piston 4 and piston cylinder 5 forms throttling passage at throttling channel 7 respectively, realizes the increase of throttling passage length.
It can be seen from the above, only cooperating shape by fixed piston 4 and throttling channel 7 during piston rod 1 gos deep into plunger shaft
At throttling passage realize vibration damping, and piston rod 1 restore during, hydraulic oil by movable piston 3 with 4 groups of fixed piston
After conjunction with the throttling passage of throttling channel 7 realize vibration damping, therefore chock length compare piston retraction when it is elongated, identical hydraulic
Under oil mass, provided damping force value is bigger when piston rod 1 restores, therefore by way of adjusting and changing throttling passage length
Piston rod 1 is compensated under identical moving distance, because restore when hydraulic oil flow be less than compression when hydraulic fluid flow rate due to band
The defect come, to damp the adjusting of force value when realizing to piston pull.And it can choose the movable piston 3 of different-thickness
The accurate adjusting to damping force value is realized with fixed piston 4.
When between body of a motor car and wheel set occur significant shock when, fixed piston 4 can under the drive of piston rod 1
Occur in plunger shaft significantly to move, it is different in size due to throttling channel 7, with fixed piston 4 in plunger shaft to the greatest extent
It is moved at head, fewer and fewer with the quantity of the throttling channel 7 of the cooperation of fixed piston 4, i.e. the flow area of hydraulic oil is smaller and smaller, because
This can set damping force value relative to the position of vehicle body according to piston.
Embodiment 2:
The present embodiment the difference from embodiment 1 is that: in the present embodiment, throttling channel 7 is not designed to axial along piston cylinder inner cylinder 8
Straight trough, and be designed as intermediate width, the penetrating slot that both ends become narrow gradually, therefore during fixed piston 4 gradually moves, by
It is become narrow gradually in throttling channel 7, therefore also plays the effect of smaller hydraulic oil circulation area, can realized by a throttling channel
A plurality of effect.
In the present embodiment, throttling channel 7 can be identical with length, can also be different with length.
Embodiment 3:
The present embodiment the difference from embodiment 1 is that: as shown in fig. 7, in the present embodiment, piston cylinder 5 is integral type, throttling channel
7 are provided on the inner surface of piston cylinder 5.The present embodiment plays technical effect same as Example 1, but technique is relatively implemented
Example 1 is increasingly complex.
Embodiment 4:
The present embodiment the difference from embodiment 1 is that: as shown in figure 8, in the present embodiment, piston cylinder inner cylinder 8 is successively arranged with
Multiple, 7 length of throttling channel on the same piston cylinder inner cylinder 8 is identical, the throttling channel 7 on multiple piston cylinder inner cylinders 8 by outer and
Interior overlapping opens up and length is sequentially reduced from inside to outside, therefore cooperatively forms inside and outside the throttling channel 7 on all piston cylinder inner cylinders 8
Between the whole throttling channel that successively shoals of deep both ends, therefore piston rod 1 is during gradually moving, since throttling channel 7 gradually becomes
Shallowly, therefore the effect of smaller hydraulic oil circulation area is also played, plays the effect for slowing down vibration damping degree.
Embodiment 5:
The present embodiment the difference from embodiment 1 is that: as shown in figure 9, in the present embodiment, piston cylinder inner cylinder 8 using split type,
As two sections of docking are formed.Piston cylinder inner cylinder 8 can be used any material and be made simultaneously.
Embodiment 6:
The present embodiment the difference from embodiment 1 is that: in the present embodiment, electromagnetic mechanism is provided at fixed piston 4, activity
Piston 3 is made of iron material, and piston rod 1 uses hollow setting, and the conducting wire of electromagnetic mechanism is drawn by piston rod 1, by opening
The attraction to movable piston 3 may be implemented in dynamic electromagnetic mechanism, realizes that the active of restriction effect is adjusted.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of adjustable liquid-springing piston of damping, the piston cylinder (5) including being full of hydraulic oil, piston cylinder (5) is interior to be provided with
Fixed piston (4), piston rod (1) one end are connected and fixed piston (4) one end and draw from piston cylinder (5) port, and piston rod (1) drives
Fixed piston (4) moves back and forth in piston cylinder (5), it is characterised in that: is arranged with activity in the side of the piston rod (1)
Piston (3), the inner wall of movable piston (3) and fixed piston (4) respectively with piston cylinder (5) is slidably connected, in the interior of piston cylinder (5)
At least one throttling channel (7) are provided on wall；
Movable piston (3) is bonded with the movement of piston rod (1) with fixed piston (4), movable piston (3) and fixed piston (4) patch
Afterwards, movable piston (3) and the contact surface and fixed piston (4) and the contact surface of piston cylinder (5) of piston cylinder (5) are throttling respectively
Throttling passage is formed at slot (7), realizes the superposition of throttling passage length；
Or movable piston (3) is separated with the movement of piston rod (1) with fixed piston (4), only fixed piston (4) and piston cylinder (5)
Contact surface form throttling passage at throttling channel (7), realize the reduction of throttling passage length.
2. the adjustable liquid-springing piston of damping according to claim 1, it is characterised in that: the piston cylinder (5) by
It is arranged inside and outside piston cylinder outer cylinder (9) and piston cylinder inner cylinder (8), the throttling channel (7) is provided with piston cylinder inner cylinder (8)
On, and throttling channel (7) is the penetrating slot for penetrating piston cylinder inner cylinder (8).
3. the adjustable liquid-springing piston of damping according to claim 2, it is characterised in that: throttling channel (7) is along the work
Plug tube inner cylinder (8) axially opens up.
4. the adjustable liquid-springing piston of damping according to claim 2, it is characterised in that: throttling channel (7) is that width is equal
Even straight trough, throttling channel (7) are provided with a plurality of, and a plurality of throttling channel (7) is circumferentially uniformly distributed along piston cylinder inner cylinder (8), and a plurality of
Throttling channel (7) axial length is different.
5. the adjustable liquid-springing piston of damping according to claim 4, it is characterised in that: a plurality of throttling channel
(7) horizontal central line is coplanar.
6. the adjustable liquid-springing piston of damping according to claim 2, it is characterised in that: the piston cylinder inner cylinder
(8) it is provided with multiple and is successively arranged from inside to outside, throttling channel (7) length on the same piston cylinder inner cylinder (8) is identical, more
Throttling channel (7) on a piston cylinder inner cylinder (8) is overlapped from outside to inside to be opened up and length is sequentially reduced from inside to outside.
7. the adjustable liquid-springing piston of damping according to claim 1, it is characterised in that: in the piston rod (1)
On be fixed with the block machine (2) limited to movable piston (3), block machine (2) is located at the outside of movable piston (3).
8. a kind of utilize liquid-springing made of the adjustable liquid-springing piston of damping described in claim 1 ~ 7 any one
Device, it is characterised in that: be set with outer barrel of absorber (10) in the outer side seal of piston cylinder (5), outer barrel of absorber (10) and piston
Interval forms the outer oil cavity of damper between cylinder (5), and piston cylinder (5) bottom is connected to outer barrel of absorber (10).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266696.5A CN109780117A (en) | 2019-04-03 | 2019-04-03 | It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer |
| PCT/CN2020/082982 WO2020200278A1 (en) | 2019-04-03 | 2020-04-02 | Hydraulic shock absorption piston having adjustable damping, and hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266696.5A CN109780117A (en) | 2019-04-03 | 2019-04-03 | It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780117A true CN109780117A (en) | 2019-05-21 |
Family
ID=66491042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910266696.5A Withdrawn CN109780117A (en) | 2019-04-03 | 2019-04-03 | It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109780117A (en) |
| WO (1) | WO2020200278A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173535A (en) * | 2019-06-10 | 2019-08-27 | 伯科姆汽车零部件系统(苏州)有限公司 | A kind of frequency self-induction damping adjusting absorber valve assembly |
| WO2020200278A1 (en) * | 2019-04-03 | 2020-10-08 | 郭怀宝 | Hydraulic shock absorption piston having adjustable damping, and hydraulic shock absorber |
| CN113685476A (en) * | 2021-08-30 | 2021-11-23 | 常州大学 | Liquid damper with damping force jumping along with displacement |
| CN114593170A (en) * | 2022-03-03 | 2022-06-07 | 精诚工科汽车系统有限公司 | Frequency sensitive shock absorber and vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004057561A1 (en) * | 2004-11-30 | 2007-04-19 | Bruno Meier | Pneumatic deceleration device for braking movable furniture parts, in particular drawers |
| CN101251163B (en) * | 2008-03-27 | 2010-06-30 | 中国科学技术大学 | Opposition resistance damper for shear thickening liquid |
| CN206036099U (en) * | 2016-06-28 | 2017-03-22 | 曾晓东 | Two -level buffer ware |
| CN207961383U (en) * | 2018-02-12 | 2018-10-12 | 郭怀宝 | A kind of more valve block bidirectional throttle formula daming pistons |
| CN207961376U (en) * | 2018-02-12 | 2018-10-12 | 郭怀宝 | A kind of hydraulic shock-absorption piston and hydraulic damper with combined sleeve |
| CN208221450U (en) * | 2018-04-28 | 2018-12-11 | 郭怀宝 | A kind of hydraulic shock-absorption piston and hydraulic damper with throttle valve plate |
| CN109780117A (en) * | 2019-04-03 | 2019-05-21 | 郭怀宝 | It is a kind of to damp adjustable liquid-springing piston and hydraulic buffer |
-
2019
- 2019-04-03 CN CN201910266696.5A patent/CN109780117A/en not_active Withdrawn
-
2020
- 2020-04-02 WO PCT/CN2020/082982 patent/WO2020200278A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020200278A1 (en) * | 2019-04-03 | 2020-10-08 | 郭怀宝 | Hydraulic shock absorption piston having adjustable damping, and hydraulic shock absorber |
| CN110173535A (en) * | 2019-06-10 | 2019-08-27 | 伯科姆汽车零部件系统(苏州)有限公司 | A kind of frequency self-induction damping adjusting absorber valve assembly |
| CN110173535B (en) * | 2019-06-10 | 2024-04-05 | 伯科姆汽车零部件系统(苏州)有限公司 | Frequency self-induction damping adjustment shock absorber recovery valve assembly |
| CN113685476A (en) * | 2021-08-30 | 2021-11-23 | 常州大学 | Liquid damper with damping force jumping along with displacement |
| CN113685476B (en) * | 2021-08-30 | 2022-09-23 | 常州大学 | Liquid damper with damping force jumping along with displacement |
| CN114593170A (en) * | 2022-03-03 | 2022-06-07 | 精诚工科汽车系统有限公司 | Frequency sensitive shock absorber and vehicle |
| CN114593170B (en) * | 2022-03-03 | 2024-03-01 | 精诚工科汽车系统有限公司 | Frequency sensitive shock absorber and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020200278A1 (en) | 2020-10-08 |
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Application publication date: 20190521 |