CN206419413U - A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency - Google Patents
A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency Download PDFInfo
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- CN206419413U CN206419413U CN201621442498.8U CN201621442498U CN206419413U CN 206419413 U CN206419413 U CN 206419413U CN 201621442498 U CN201621442498 U CN 201621442498U CN 206419413 U CN206419413 U CN 206419413U
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- capillary
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- shock absorber
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Abstract
The utility model discloses a kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency；On pipeline between upper bunker and lower bunker oil transportation mouthful, capillary tandem damping association section, capillary paralleling formula system frequency association section are connected with turn from top to bottom.Capillary tandem damping association section includes four capillaries being sequentially connected in series, and the two ends of its every capillary are parallel with magnetic valve.Capillary paralleling formula system frequency association section includes four road capillaries in parallel；This four roads capillary is in series with magnetic valve.Diameter of the diameter much larger than resistance trimming section capillary of the minimum capillary of frequency modulation section.In the working condition table of matrix form, the configuration value S of frequency modulation section magnetic valve is chosen according to situationmn, by way of changing quality, you can the problem of solving non-adjustable hydraulic vibration damper used for vehicle system frequency or adjustable extent very little.
Description
Technical field
The utility model is related to hydraulic type automobile shock absorber field, more particularly to a kind of matrix (formula) connection in series-parallel capillary can
Become the shock absorber of system frequency.
Background technology
The vibration damping mode of automobile mainly has fluid pressure type, vapour-pressure type, electromagnetic type.Fluid pressure type is to use to obtain widest automobile at present
Vibration damping mode.The system frequency of hydraulic vibration absorber is the important performance indexes of vehicle shock absorber, current fluid pressure type vibration damping
One system frequency for having the disadvantage shock absorber of device performance is non-adjustable or adjustable extent very little.
The quality of hydraulic type automobile damper system intrinsic frequency will directly influence the Oscillation Amplitude of driving, comfortableness and
Ride comfort.
It is well known that for preferable spring oscillator, as shown in figure 1, the intrinsic frequency of its system and spring oscillator bead
The square root of quality is inversely proportional；That is, when changing the quality of bead, the intrinsic frequency of system can change.Bead
The smaller then system of quality intrinsic frequency it is higher, the intrinsic frequency of the more big then system of quality of bead is lower.
As shown in Fig. 2 four road capillaries are capillary R8, R4, R2, R1 respectively；Their sectional areas are equal and in parallel respectively
Magnetic valve VR8、VR4、VR2、VR1.The length ratio of this 4 road capillary is 8:4:2:1；I.e. their length be according to 8421 two
Scale coding rule is arranged.
As in Fig. 2, shock absorber will determine magnetic valve V according to damping requirementsR8、VR4、VR2、VR1Configuration SRn(n value model
Enclose：0、1、2、….、15.Wherein SR0Represent magnetic valve VR8、VR4、VR2、VR1Close All.SR1Represent VR8、VR4、VR2、VR1In only
VR1It is open-minded, remaining closing.SR2Represent only VR2It is open-minded, remaining closing.SR3Represent only VR2、VR1It is open-minded, remaining closing.By that analogy
SR4To SR15Meaning).As configuration SRnIt is determined that, then the mass M that vibration carries out the fluid of vibration damping is participated in shock absorberRnAlso determine
.Compared with spring oscillator, mass MRnSimilar to the pellet quality of spring oscillator；So, the now intrinsic frequency of damper system
What rate was then to determine, thus intrinsic frequency it is determined that configuration SRnUnder be nonadjustable.
The content of the invention
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, and there is provided a kind of matrix connection in series-parallel hair
The shock absorber of tubule variable system intrinsic frequency, reaches the mesh for the system frequency characteristic for improving hydraulic type automobile shock absorber
's.
The utility model is achieved through the following technical solutions：
A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency, including vehicle frame 11, axletree 17 and hydraulic pressure
Cylinder 13；The upper end of the hydraulic cylinder 13 passes through its piston rod connecting vehicle frame 11, the lower end cylinder body connection axletree 17 of hydraulic cylinder 13；Liquid
13 points by hydraulic cylinder of piston 15 in cylinder pressure 13 is upper bunker 14 and lower bunker 16；
On pipeline between the upper bunker 14 and the lower oil transportation of bunker 16 mouthful, capillary series connection is connected with turn from top to bottom
Formula damping association section, capillary paralleling formula system frequency association section；That is, the F hydraulic fluid ports of capillary tandem damping association section
The A hydraulic fluid ports of bunker 14 in connection, the E hydraulic fluid ports connection capillary paralleling formula system frequency of capillary tandem damping association section
Associate the G hydraulic fluid ports of section, the B hydraulic fluid ports of the lower bunker 16 of H hydraulic fluid ports connection of capillary paralleling formula system frequency association section.
The capillary tandem damping association section includes four capillaries being sequentially connected in series, wherein, per capillary
Two ends are parallel with magnetic valve；The effect of the magnetic valve is the break-make for controlling capillary；
The capillary paralleling formula system frequency association section includes four road capillaries in parallel；This four roads capillary is equal
It is in series with magnetic valve；The effect of the magnetic valve is the break-make for controlling capillary.
The capillary paralleling end of the capillary paralleling formula system frequency association section is G hydraulic fluid ports, the parallel connection of magnetic valve
Hold as H hydraulic fluid ports.
The capillary paralleling formula system frequency associates four capillary equal lengths of section.
The ratio between sectional area of four capillaries of the capillary paralleling formula system frequency association section is 8:4:2:1；
I.e. their sectional area is arranged according to 8421 binary coding rule.
In four capillaries of capillary paralleling formula system frequency association section, minimum capillary m1 diameter dm1Than string
The capillary diameter d of connection formula damping association sectionRIt is twice the above.
Capillary tandem damping association section associates the capillary in section, disk with capillary paralleling formula system frequency
Into " M " word shape, serpentine shape or spiral-shaped.
Capillary tandem damping association section and capillary paralleling formula system frequency association section in magnetic valve also with
Capillary control system is connected；Capillary control system is used for the break-make for controlling each magnetic valve.
Spring 12 is provided between vehicle frame 11 and axletree 17.
The shock absorber operation method of the utility model matrix connection in series-parallel capillary variable system intrinsic frequency, including following step
Suddenly：
When producing relative motion between vehicle frame and axletree, piston can produce accordingly or up or down movement, now liquid
Oil-based liquid in cylinder pressure 13 can be by the capillary tandem damping association section and capillary paralleling formula between A hydraulic fluid ports, B hydraulic fluid ports
System frequency associates section, and then flows to upper bunker 14 from the lower bunker 16 of upper bunker 14 flow direction, or from lower bunker 16；
Due to the viscous effect of the oil-based liquid in cylinder body, when oil-based liquid flows through capillary tandem damping association section
When, the capillary that works can produce damping to the flowing of oil-based liquid in capillary tandem damping association section, so as to be formed pair
The resistance of piston movement；The configuration S that the size of the resistance passes through magnetic valve by capillary control systemRnControl, and then realize hair
The resistance trimming of tubule tandem damping association section；
When oil-based liquid flows through capillary paralleling formula system frequency association section, changed by capillary control system
The configuration S of magnetic valvemn, then the system frequency of adjustable vibration-damper, and then realize capillary paralleling formula system frequency
Associate the frequency modulation of section.
Shock absorber operation method of the present utility model is described further below：
When producing relative motion between vehicle frame and axletree, piston can produce accordingly or up or down movement, now liquid
Oil-based liquid in cylinder pressure 13 can be by capillary tandem damping association section (the hereinafter referred to as resistance trimming between A hydraulic fluid ports, B hydraulic fluid ports
Section) section (hereinafter referred to as frequency modulation section) is associated with capillary paralleling formula system frequency, and then flow to lower bunker from upper bunker 14
16, or flow to upper bunker 14 from lower bunker 16.
Due to the viscous effect of the oil-based liquid in cylinder body, when oil-based liquid flows through resistance trimming section, the capillary of resistance trimming section
Damping can be produced to the flowing of oil-based liquid, so as to form the resistance moved to piston；The size of the resistance is by capillary control
The configuration S that system passes through magnetic valveRnControl, and then realize the resistance trimming of resistance trimming section.
Shock absorber according to damping requirements by resistance trimming section configuration SRnAfter deciding, shock absorber is further according to intrinsic frequency
It is required that the magnetic valve V that frequency modulation section will be determinedm8、Vm4、Vm2、Vm1Configuration Smn。SmnIn, n span is 0,1,2 ..., 15；
Wherein Sm0Represent magnetic valve Vm8、Vm4、Vm2、Vm1Close All；Sm1Represent Vm8、Vm4、Vm2、Vm1In only Vm1It is open-minded, remaining closing；
Sm2Represent only Vm2It is open-minded, remaining closing；Sm3Represent only Vm2、Vm1It is open-minded, remaining closing.S by that analogym4To Sm15。
As the configuration S of frequency modulation sectionmnIt is determined that, then the mass M of the fluid of vibration is participated in frequency modulation sectionmnAlso determine that；So as to
The quality that the fluid that vibration carries out vibration damping is participated in shock absorber is then MRn+Mmn(M hereinRnTo participate in the fluid of vibration in resistance trimming section
Quality).Compared with spring oscillator, mass MRn、MmnSynthesis quality then be similar to spring oscillator pellet quality；We lead to
Cross change MmnTo change MRn、MmnSynthesis quality so as to changing the intrinsic frequency of damper system.
Because the diameter of the minimum capillary of frequency modulation section is all much larger than the diameter of the capillary of resistance trimming section, frequency modulation section
Loss in head just much smaller than resistance trimming section loss in head.So, the damping of shock absorber is exactly mainly the damping of resistance trimming section, because
This, resistance trimming section is also referred to as by capillary tandem damping association section.Again because influence very little of the frequency modulation section to damping, and it
The system frequency of shock absorber can be changed, so, capillary paralleling formula system frequency association section is referred to as frequency modulation section.
Again because resistance trimming section is adjusted with tandem capillary, the parallel capillary of frequency modulation section is adjusted, the system is exactly connection in series-parallel
(first " string " represents that the working method of resistance trimming section is series system to capillary shock absorber, and second " simultaneously " represents frequency modulation section
Working method is parallel way).
Because the diameter of the damping very little of frequency modulation section, frequency modulation section capillary, than larger, we can be easy to pass through
The length of frequency modulation section capillary is lengthened by MmnIt is made much larger than MRn, so as to by the regulation model of damper system intrinsic frequency
Enclose and be made very big.
The resistance trimming section of shock absorber, frequency modulation section tandem working, the state of resistance trimming section is by configuration SRnIt is determined that, frequency modulation section state by
Configuration SmnIt is determined that；So, the working condition of shock absorber can be represented with following table.
The theoretical work state table of shock absorber：
Valued content in table above can be regarded to 16 × 16 matrix as, the element of the matrix is exactly (SRn,
Smn).Therefore, the theoretical work state of shock absorber clearly and succinctly is illustrated out by the utility model with the mode of matrix, institute
A kind of vehicle shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency is referred to as with system of the present utility model.
The configuration S of resistance trimming section and each magnetic valve in frequency modulation sectionRn、SmnControlled by the capillary control system of shock absorber.
In superincumbent matrix, S should be reduced during actual motion as far as possiblem0State occur；Because these states are to vibration damping
The service life of device is influenceed than larger.
Because the M of frequency modulation sectionmnAdjustable range it is very big, so damper system intrinsic frequency change scope it is also very big；
So as to the problem of solving non-adjustable hydraulic buffer system frequency or adjustable extent very little.
The utility model has the following advantages and effect relative to prior art：
The utility model by change frequency modulation section magnetic valve configuration SmnSolve hydraulic buffer system frequency not
The problem of adjustable or adjustable extent very little.
The utility model is skillfully constructed, cheap, technological means is simple and easy to do.The utility model is tied with simple machinery
Structure has constructed the executing agency of digitlization regulation damper system intrinsic frequency, and by the theoretical work state square of shock absorber
The mode of battle array clearly and succinctly illustrates out；The quality of the system frequency of hydraulic buffer is greatly improved, to existing
For the development of vehicle vibration damping technology, with positive, prominent beneficial effect.
Brief description of the drawings
Fig. 1 is existing spring oscillator schematic diagram.
Fig. 2 is the structural representation of the vehicle shock absorber of existing variable damp of capillary tubes in serial connection.
Fig. 3 is the damper structure schematic diagram of the utility model matrix connection in series-parallel capillary variable system intrinsic frequency.
Embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment
Fig. 1, Fig. 2 related content are shown in background section.
As shown in Figure 3.It is R8, R4, R2, R1 respectively that resistance trimming section, which includes four capillaries,；Their sectional areas are equal and distinguish
Magnetic valve V in parallelR8、VR4、VR2、VR1Control its work.The length ratio of this four capillarys is 8:4:2:1；Their diameter is
dR。
It is m8, m4, m2, m1 respectively that frequency modulation section, which includes four capillaries,；It (is L that they are isometricm) and electromagnetism of connecting respectively
Valve Vm8、Vm4、Vm2、Vm1Control its work.In the present embodiment, the length L of this four capillarymEqual to the most long capillary of resistance trimming section
Pipe R8 length LR8.The ratio between sectional area of this four capillary is 8:4:2:1.The diameter of minimum capillary in this four capillary
dm1Equal to 4 times dR。
Shock absorber according to damping requirements by resistance trimming section configuration SRnAfter deciding, shock absorber is further according to intrinsic frequency
It is required that the magnetic valve V that frequency modulation section will be determinedm8、Vm4、Vm2、Vm1Configuration Smn；As the configuration S of frequency modulation sectionmnIt is determined that, then in frequency modulation section
Participate in the mass M of the fluid of vibrationmnAlso determine that；So as to which the quality that the fluid that vibration carries out vibration damping is participated in shock absorber is then
MRn+Mmn(M hereinRnFor the quality for the fluid that vibration is participated in resistance trimming section).Compared with spring oscillator, mass MRn、MmnSynthesis
Quality is then similar to the pellet quality of spring oscillator；We are by changing MmnTo change MRn、MmnSynthesis quality subtract so as to changing
The intrinsic frequency for device system of shaking.
In the present embodiment, because diameter dm1=4dR, Lm=LR8；So, the loss in head of frequency modulation section is just much smaller than resistance trimming
The loss in head of section.Again because diameter dm1=4dR, Lm=LR8；So the M of frequency modulation sectionmnMuch larger than the M of resistance trimming sectionRn, so that
The adjustable range for obtaining damper system intrinsic frequency is very big.
As described above, just can preferably realize the utility model.
Embodiment of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from of the present utility model
Spirit Essence and the change made under principle, modification, replacement, combine, simplify, should be equivalent substitute mode, be included in
Within protection domain of the present utility model.
Claims (9)
1. a kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency, including vehicle frame (11), axletree (17) and liquid
Cylinder pressure (13)；The upper end of the hydraulic cylinder (13) is connected by its piston rod connecting vehicle frame (11), the lower end cylinder body of hydraulic cylinder (13)
Pick up axle (17)；Hydraulic cylinder (13) is divided into upper bunker (14) and lower bunker (16) by the piston 15 in hydraulic cylinder (13)；Its feature
It is：
On pipeline between the upper bunker (14) and lower bunker (16) oil transportation mouthful, capillary series connection is connected with turn from top to bottom
Formula damping association section, capillary paralleling formula system frequency association section；That is, the F hydraulic fluid ports of capillary tandem damping association section
The A hydraulic fluid ports of bunker (14) in connection, the E hydraulic fluid ports connection intrinsic frequency of capillary paralleling formula system of capillary tandem damping association section
Rate associates the G hydraulic fluid ports of section, the B hydraulic fluid ports of the lower bunker (16) of H hydraulic fluid ports connection of capillary paralleling formula system frequency association section.
2. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 1, it is characterised in that：Institute
Stating capillary tandem damping association section includes four capillaries being sequentially connected in series, wherein, the two ends per capillary are in parallel
There is magnetic valve；
The capillary paralleling formula system frequency association section includes four road capillaries in parallel；This four roads capillary is connected
There is magnetic valve.
3. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 2, it is characterised in that：Institute
The capillary paralleling end for stating capillary paralleling formula system frequency association section is G hydraulic fluid ports, and the parallel connected end of magnetic valve is H hydraulic fluid ports.
4. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 2, it is characterised in that：Institute
State the four capillary equal lengths that capillary paralleling formula system frequency associates section.
5. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 2, it is characterised in that：Hair
The ratio between sectional area of four capillaries of tubule parallel type system intrinsic frequency association section is 8:4:2:1；That is their sectional area
It is to be arranged according to 8421 binary coding rule.
6. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 5, it is characterised in that：Hair
In four capillaries of tubule parallel type system intrinsic frequency association section, minimum capillary m1 diameter dm1Damp and close than tandem
Join the capillary diameter d of sectionRIt is twice the above.
7. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to any one of claim 1 to 6, its
It is characterised by：Capillary tandem damping association section associates the capillary in section with capillary paralleling formula system frequency,
Disk is into " M " word shape, serpentine shape or spiral-shaped.
8. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 7, it is characterised in that：Hair
Tubule tandem damping association section and capillary paralleling formula system frequency association section in magnetic valve also with capillary control
System is connected；Capillary control system is used for the break-make for controlling each magnetic valve.
9. the shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency according to claim 7, it is characterised in that：Car
Spring (12) is provided between frame (11) and axletree (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621442498.8U CN206419413U (en) | 2016-12-27 | 2016-12-27 | A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621442498.8U CN206419413U (en) | 2016-12-27 | 2016-12-27 | A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency |
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| CN206419413U true CN206419413U (en) | 2017-08-18 |
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| CN201621442498.8U Withdrawn - After Issue CN206419413U (en) | 2016-12-27 | 2016-12-27 | A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763440A (en) * | 2016-12-27 | 2017-05-31 | 华南理工大学 | A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency |
-
2016
- 2016-12-27 CN CN201621442498.8U patent/CN206419413U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763440A (en) * | 2016-12-27 | 2017-05-31 | 华南理工大学 | A kind of shock absorber of matrix connection in series-parallel capillary variable system intrinsic frequency |
| CN106763440B (en) * | 2016-12-27 | 2019-05-14 | 华南理工大学 | A kind of damper of the series-parallel capillary variable system intrinsic frequency of matrix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170818 Effective date of abandoning: 20190514 |