CN206419414U - A kind of shock absorber of matrix string series connection capillary variable system intrinsic frequency - Google Patents
A kind of shock absorber of matrix string series connection capillary variable system intrinsic frequency Download PDFInfo
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- CN206419414U CN206419414U CN201621442510.5U CN201621442510U CN206419414U CN 206419414 U CN206419414 U CN 206419414U CN 201621442510 U CN201621442510 U CN 201621442510U CN 206419414 U CN206419414 U CN 206419414U
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- capillary
- intrinsic frequency
- system intrinsic
- section
- shock absorber
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Abstract
A kind of shock absorber for capillary variable system intrinsic frequency of being connected the utility model discloses matrix string；On pipeline between upper bunker and lower bunker oil transportation mouthful, capillary tandem damping association section, capillary series system intrinsic frequency association section are connected with turn from top to bottom.Capillary tandem damping association section includes four capillaries for being sequentially connected in series, and its two ends per capillary is parallel with solenoid valve control its work.Capillary series system intrinsic frequency association section includes four road capillaries of series connection；This four roads capillary is parallel with solenoid valve control its work.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) string series connection 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 to be connected hair there is provided a kind of matrix string
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 string series connection 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 series system intrinsic 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 series system intrinsic frequency of capillary tandem damping association section
Associate the I hydraulic fluid ports of section, the B hydraulic fluid ports of the lower bunker 16 of J hydraulic fluid ports connection of capillary series system intrinsic 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 series system intrinsic frequency association section includes four capillaries of series connection；This four capillary is equal
It is parallel with magnetic valve；The effect of the magnetic valve is the break-make for controlling capillary.
Two interface ends of the capillary series system intrinsic frequency association section are respectively I hydraulic fluid ports, J hydraulic fluid ports.
Four capillary sectional areas of the capillary series system intrinsic frequency association section are equal.
The length ratio of four capillaries of the capillary series system intrinsic frequency association section is 8:4:2:1；I.e.
Their length is arranged according to 8421 binary coding rule.
In four capillaries of the capillary series system intrinsic frequency association section, the diameter d of capillarymThan series connection
The capillary diameter d of formula damping association sectionRIt is twice the above.
The capillary tandem damping association section associates the capillary in section with capillary series system intrinsic frequency,
Disk is into " M " word shape, serpentine shape or spiral-shaped.
The capillary tandem damping association section associates the magnetic valve in section with capillary series system intrinsic frequency
Also it is connected with capillary control system；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 string series connection 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 tandem 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 series system intrinsic 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 series system intrinsic 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 series system intrinsic 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 capillary of frequency modulation section is all much larger than the diameter of the capillary of resistance trimming section, the pressure of frequency modulation section
Head loss is just much smaller than the loss in head of resistance trimming section.So, the damping of shock absorber is exactly mainly the damping of resistance trimming section, therefore, will
Capillary tandem damping association section is also referred to as resistance trimming section.Again because influence very little of the frequency modulation section to damping, and it can change
Become the system frequency of shock absorber, so, capillary series system intrinsic frequency association section is referred to as frequency modulation section.And because
Also adjusted for the regulation of resistance trimming section tandem capillary, frequency modulation section with tandem capillary, so, the system is exactly string series connection hair
(first " string " represents that the working method of resistance trimming section is series system to tubule shock absorber, and second " string " represents the work of frequency modulation section
It is series system as mode).
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 string series connection 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.
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 string series connection 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 capillary is 8:4:2:1；Their diameter is equal
For dR。
It is m8, m4, m2, m1 respectively that frequency modulation section, which includes four capillaries,；Their sectional areas are equal and distinguish magnetic valve in parallel
Vm8、Vm4、Vm2、Vm1Control its work；The length ratio of this four capillary is 8:4:2:1.In the present embodiment, this four hairs
Most short capillary m1 length L in tubulem1Equal to resistance trimming section most long capillary R8 length LR8Half.This four capillary
Diameter dmEqual 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 dm=4dR, Lm1=0.5LR8；So, the loss in head of frequency modulation section is just much smaller than
The loss in head of resistance trimming section.Again because diameter dm=4dR, Lm1=0.5LR8；So the M of frequency modulation sectionmnMuch larger than the M of resistance trimming sectionRn,
So that the adjustable range of 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)
- The shock absorber of capillary variable system intrinsic frequency 1. a kind of matrix string is connected, 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)；It is special Levy and be：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 series system intrinsic 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 series system of capillary tandem damping association section Rate associates the I hydraulic fluid ports of section, the B hydraulic fluid ports of the lower bunker (16) of J hydraulic fluid ports connection of capillary series system intrinsic frequency association section.
- 2. according to claim 1 matrix string connect capillary variable system intrinsic frequency shock absorber, 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 series system intrinsic frequency association section includes four capillaries of series connection；This four capillary is in parallel There is magnetic valve.
- 3. according to claim 2 matrix string connect capillary variable system intrinsic frequency shock absorber, it is characterised in that：Institute Two interface ends for stating capillary series system intrinsic frequency association section are respectively I hydraulic fluid ports, J hydraulic fluid ports.
- 4. according to claim 2 matrix string connect capillary variable system intrinsic frequency shock absorber, it is characterised in that：Institute The four capillary sectional areas for stating capillary series system intrinsic frequency association section are equal.
- 5. according to claim 2 matrix string connect capillary variable system intrinsic frequency shock absorber, it is characterised in that：Institute The length ratio for stating four capillaries of capillary series system intrinsic frequency association section is 8:4:2:1；That is their length It is to be arranged according to 8421 binary coding rule.
- 6. according to claim 5 matrix string connect capillary variable system intrinsic frequency shock absorber, it is characterised in that：Institute In four capillaries for stating capillary series system intrinsic frequency association section, the diameter d of capillarymDamp and associate than tandem The capillary diameter d of sectionRIt is twice the above.
- The shock absorber of capillary variable system intrinsic frequency 7. the matrix string according to any one of claim 1 to 6 is connected, its It is characterised by：The capillary tandem damping association section associates the capillary in section with capillary series system intrinsic frequency Pipe, disk are into " M " word shape, serpentine shape or spiral-shaped.
- 8. according to claim 7 matrix string connect capillary variable system intrinsic frequency shock absorber, it is characterised in that：Institute State capillary tandem damping association section and capillary series system intrinsic 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. according to claim 7 matrix string connect capillary variable system intrinsic frequency shock absorber, 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 |
|---|---|---|---|
| CN201621442510.5U CN206419414U (en) | 2016-12-27 | 2016-12-27 | A kind of shock absorber of matrix string series connection capillary variable system intrinsic frequency |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621442510.5U CN206419414U (en) | 2016-12-27 | 2016-12-27 | A kind of shock absorber of matrix string series connection capillary variable system intrinsic frequency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678253A (en) * | 2016-12-27 | 2017-05-17 | 华南理工大学 | Damper provided with matrix series capillary tubes and variable system natural frequency |
| CN108194565A (en) * | 2018-01-26 | 2018-06-22 | 华南理工大学 | The string series connection R formulas vehicle shock absorber and method that a kind of single turbine recovers energy |
-
2016
- 2016-12-27 CN CN201621442510.5U patent/CN206419414U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678253A (en) * | 2016-12-27 | 2017-05-17 | 华南理工大学 | Damper provided with matrix series capillary tubes and variable system natural frequency |
| CN108194565A (en) * | 2018-01-26 | 2018-06-22 | 华南理工大学 | The string series connection R formulas vehicle shock absorber and method that a kind of single turbine recovers energy |
| WO2019144652A1 (en) * | 2018-01-26 | 2019-08-01 | 华南理工大学 | Serial r-type automobile damper and method for recovering energy of single turbine |
| CN108194565B (en) * | 2018-01-26 | 2020-04-28 | 华南理工大学 | Series-connection R-type automobile shock absorber with energy recovered by single turbine and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170818 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |