CN105927699A - Controllable extension vibration reducer - Google Patents
Controllable extension vibration reducer Download PDFInfo
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- CN105927699A CN105927699A CN201610548663.6A CN201610548663A CN105927699A CN 105927699 A CN105927699 A CN 105927699A CN 201610548663 A CN201610548663 A CN 201610548663A CN 105927699 A CN105927699 A CN 105927699A
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- Prior art keywords
- cylinder
- oil storage
- shock absorber
- piston
- working cylinder
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
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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
- 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
- F16F9/504—Inertia, i.e. acceleration,-sensitive means
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/08—Inertia
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
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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
- F16F2238/00—Type of springs or dampers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a controllable extension vibration reducer. The controllable extension vibration reducer comprises a working cylinder on the inner layer, an oil storage cylinder on the middle layer, an outer cylinder sleeve on the outer layer, a piston mounted in the working cylinder, a piston rod moving up and down along with the piston, an upper/lower electromagnetic valve positioned at the top/bottom end of the working cylinder for communicating or closing the working cylinder and the oil storage cylinder, an upper/lower one-way valve positioned between the upper/lower electromagnetic valve and the piston, and a vibration reducing spring tightly connected with the upper end of the oil storage cylinder through one end and tightly connected with the upper end of the outer cylinder sleeve through the other end; the upper/lower one-way valve is opened or closed to communicate or close an upper/lower cavity of the oil storage cylinder and the working cylinder; the lower end of the outer cylinder sleeve is closed by an end cover; and the piston rod extends out of the lower electromagnetic valve, and is fixedly connected with the end cover for driving the outer cylinder sleeve to move up and down. The controllable extension vibration reducer is simple in structure, low in cost and reliable in performance, can realize four working states of free extension, only extension without shrinking, only shrinkage without extending and incapability of extending according to different conditions, and synchronously satisfies the requirements of control stability and sitting comfort.
Description
Technical field
The present invention relates to shock absorber, more particularly, it relates to a kind of controllable extensible shock absorber.
Background technology
Automobile has been increasingly becoming the part in people's life, as walking-replacing tool, it is desirable to automobile and has well
Riding comfort, to slow down running car jolting on uneven road surface, also want to automobile has good control stability simultaneously,
Preventing the automobile body sway when starting to walk acceleration or deceleration braking and crossing curved at a high speed from rocking, the quality of automobile suspension system is then carried on a shoulder pole
In the presence of ensureing riding comfort and the key player of control stability.Automobile suspension system is the elastic knot connecting wheel with vehicle body
Structure, one of its critical piece is damping shock absorber.Damping shock absorber coordinates with elastic original paper, plays buffering, vibration damping and holding car
Figure state acts on smoothly, and when the unexpected upper and lower motion of automobile or racing, jerk, its effect is particularly evident.
And it should be noted that the riding comfort of automobile and control stability are contradiction to the requirement of automotive suspension:
On the one hand, comfortableness requires that suspension wants soft to reduce running car jolting on uneven road surface, and this just requires that suspension flexibility is firm
Degree and collocation damping are little；On the other hand, stability requirement suspension wants hard to reduce automobile car when racing, jerk and acceleration start
Body tilts to rock, and this just requires that suspension flexibility rigidity and collocation damping are big.What general automobile was installed is elastic and damping is fixing
Passive suspension, can only compromise when Automobile Design and select the soft or hard of suspension to adapt to the general requirement of usual operating mode.Obviously, comfortable
Property and stability both of which are car steering and the performance that must simultaneously ensure during taking, and therefore, need in varied situations
To realize rapidly comfortableness and handling switching, namely the little switching big with rigidity of damper stiffness.
Thus, traditional passive suspension system of automobile can not meet the requirement of people, and arise at the historic moment is half actively
Suspension system and active suspension system.Both suspension systems can according to different pavement behavior and motoring condition from
Dynamic regulation, thus realize comfortableness and handling and switching.But active suspension system structure is complicated, power consumption height, on the high side, only
Having the vehicle that minority is expensive to select, semi-active suspension system mainly selected by most of medium-to-high grade automobiles.
Meanwhile, in current various actives or semi-active suspension, its vibration insulating system still uses the side of flexible member collocation damping
Formula, i.e. changes damping or the size of elastic stiffness by electronic control method, can ensure by strengthening elastic stiffness and damping
Control stability, it is also possible to by reducing elastic stiffness and damping to obtain preferable riding comfort, but these methods are also
Being could not fundamentally to solve vehicle handling stability and the riding comfort situation to automotive suspension requirement contradiction, it is simultaneously
System also needs to use multiple sensors such as acceleration transducer, height sensor, speed to pass to distinguish the operating mode of automobile
Sensor, throttle position switch, braking sensor, steering wheel angle sensor, in order to judge whether automobile accelerates also in starting
Being retarding braking, speed is high or low, keeps straight on or turns, and road is the most smooth, in order to the decision of its electronic control unit is
Strengthening or reduce elastic stiffness and damping, control algolithm is more complicated.
Summary of the invention
The technical problem to be solved in the present invention is, the above-mentioned damping shock absorber cost for prior art is high, and structure is multiple
Miscellaneous defect, it is provided that a kind of structure simple in construction controllable extensible, low cost, the controllable extensible shock absorber of dependable performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of controllable extensible shock absorber of structure, including interior
The working cylinder of layer, intermediate layer surround the oil storage cylinder of described working cylinder, outer layer described oil storage cylinder is enclosed in interior outer cylinder sheath,
The piston of two not connected cavitys up and down will be divided into inside working cylinder, be contained on piston with it in being contained in described working cylinder
The piston rod that moves up and down, lay respectively at described working cylinder top bottom to connect or to close described work by energising or power-off
Make oil circuit between cylinder and oil storage cylinder power-on and power-off magnet valve, lay respectively between power-on and power-off magnet valve and piston the most unidirectional
Valve, one end are tightly connected, with described oil storage cylinder upper end, the shock-absorbing spring that the other end is tightly connected with described outer cylinder sheath upper end, described
Power-on and power-off magnet valve is direct-acting electromagnetic valve；Described upper and lower check valve by open or close connect or close described oil storage cylinder with
Oil circuit between the upper and lower cavity of working cylinder；Described outer cylinder sheath lower end is closed by end cap, described piston rod stretch out lower magnetic valve and
Be connected fixing with described end cap moves up and down with the described outer cylinder sheath of drive.
In controllable extensible shock absorber of the present invention, described piston and described working cylinder matched in clearance, itself and piston
Bar is structure as a whole.
In controllable extensible shock absorber of the present invention, described upper and lower check valve include gasket base, sealing gasket and
Gasket base described in spring includes the flange circle of column part and cylinder front end, and described sealing gasket is enclosed within column part and and method
Separated by spring between blue circle.
In controllable damper of the present invention, described power-on and power-off magnet valve includes electromagnetic valve body, coil, coil bone
Frame, conducting magnetic column and magnetic valve sealing gasket, described magnetic valve sealing gasket cover described electromagnetism in the end face outside of described electromagnetic valve body
Valve body, built with conducting magnetic column, the coil rack on described conducting magnetic column is wound with described coil.
In controllable extensible shock absorber of the present invention, described conducting magnetic column and described gasket base are structure as a whole.
In controllable extensible shock absorber of the present invention, equipped with bullet between described magnetic valve sealing gasket and electromagnetic valve body
Spring, spring is by spaced apart with electromagnetic valve body end face outside for described magnetic valve sealing gasket.
In controllable extensible shock absorber of the present invention, described electromagnetic valve body offers around its vertical center line up and down
Through through hole and fuel feed hole.
In controllable extensible shock absorber of the present invention, described pupil one end is covered, separately by described magnetic valve sealing gasket
One end connects with working cylinder.
In controllable extensible shock absorber of the present invention, there is the air chamber connected with described oil storage cylinder described oil storage cylinder upper end
Described air chamber is the cavity sealed by both adapter ring and upper end cover, and described adapter ring is assemblied in described oil storage cylinder upper end circle
On all outer surfaces, described upper end cover is covered in described adapter ring upper end and is tightly connected with adapter ring by fastening bung flange.
In controllable extensible shock absorber of the present invention, the lower end of described adapter ring seals even with the upper end of outer T-Ring
Connecing, the lower end of described outer T-Ring is connected with shock-absorbing spring, is sequentially connected the described adapter ring connect, outer T-Ring, shock-absorbing spring, outer shell
Set, the cavity surrounded between end cap and oil storage cylinder are for sealing cavity, and inside is air.
Implement the controllable extensible shock absorber of the present invention, have the advantages that the controllable extensible shock absorber knot of the present invention
Structure is simple and dependable performance, and its working cylinder, oil storage cylinder, piston etc. all can use standard component, can be substantially reduced cost, use vibration damping
Spring and magnetic valve drive piston movement, it is possible to reach existing throttle diameter regulation damping shock absorber and electromagnetic current just
The effectiveness in vibration suppression of the damping shock absorber of damping fluid.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of controllable extensible shock absorber preferred embodiment of the present invention；
Fig. 2 is the partial schematic diagram of embodiment illustrated in fig. 1；
Fig. 3 is the solenoid top view of embodiment illustrated in fig. 1；
Fig. 4 is the C-C sectional view of solenoid shown in Fig. 3.
Label correspondence title in each accompanying drawing is as follows:
10 working cylinders, 20 oil storage cylinders, 21 adapter rings, 22 outer T-Rings, 23 upper end covers, 24 fastening bung flanges, 30 outer cylinder sheaths, unidirectional on 40
Valve, 50 times check valves, 41 sealing gaskets do, 42 sealing gaskets, 43 springs, 440 oilholes, 60 solenoid, 70 times magnetic valves, 61 electromagnetism
Valve body, 62 coils, 63 coil racks, 64 conducting magnetic columns, 65 magnetic valve sealing gaskets, 80 pistons, 90 piston rods, 100 shock-absorbing springs,
200 end caps.
Detailed description of the invention
The controllable extensible shock absorber of the preferred embodiment of the present invention as shown in Figure 1, including working cylinder 10, oil storage cylinder 20, outer
Overlap firm 30, upper check valve 40, lower check valve 50, solenoid 60, lower magnetic valve 70, piston 80, piston rod 90 shock-absorbing spring 100
Deng.
Wherein, understanding in conjunction with Fig. 1, Fig. 2, piston 80 uses entity structure, it does not set damping hole, is contained in working cylinder 10
Thus working cylinder 10 is divided into two parts of up/down cavity.Piston 80 and working cylinder 10 matched in clearance, it is ensured that working cylinder inner carrier
Sealing between the upper and lower cavity of 80 above and below, say, that upper and lower two chambers of working cylinder 10 are completely cut off by piston 80
And no liquid flowing.Piston 80 lower end connects piston rod 90, in the present embodiment as shown in Figure 1, and piston 80 and piston rod
90 are structure as a whole.
It is separately mounted to working cylinder 10 top and the upper check valve 40 of low side and lower check valve 50 by spring 43, sealing gasket
42 and gasket base 41 form, described gasket base 41 includes column part and be positioned at the flange circle of flexible front end, sealing gasket 42
Be enclosed within column part and and flange circle between have a certain distance, spring 43 is between sealing gasket 42 and flange circle.
Up/down check valve 40/50 outer end is equipped with up/down magnetic valve 60/70, in the present embodiment, and up/down magnetic valve 60/
70 all use direct-acting electromagnetic valve, for being controlled the break-make of corresponding up/down check valve 40/50 by the control of electric current, thus
Control the flow direction of oil.The structure being herein power explanation direct-acting electromagnetic valve with solenoid 60.
Understanding in conjunction with Fig. 1, Fig. 3, Fig. 4, solenoid 60 includes electromagnetic valve body 61, coil 62, coil rack 63, conducting magnetic column
64, end valve seals lid 45 and magnetic valve sealing gasket 65.
Sealing gasket 42 upper end of upper check valve 40 is equipped with conducting magnetic column 64, in the present embodiment, and conducting magnetic column 64 and gasket base
41 as integrative-structure.It is cased with coil rack 63 on the circumferential outer surface of conducting magnetic column 64, coil rack 63 is wrapped coil
62,.Coil 62 is peripherally equipped with columnar electromagnetic valve body 61.Equipped with magnetic valve sealing gasket 65 on the upper surface of electromagnetic valve body 61,
The center of conducting magnetic column 64 has shrinkage pool to place a connection solenoid sealing gasket 65 and the spring of conducting magnetic column 64.Effect at spring
Under, normal lower spring keeps certain distance by magnetic valve sealing gasket 65 jack-up and between the upper surface of electromagnetic valve body 61, works as electricity
Magnet valve is energized, then magnetic valve sealing gasket 65 is adsorbed on electromagnetic valve body 61 upper surface.
As shown in Figure 2, Figure 3, Figure 4, electromagnetic valve body 61 has through hole 610 and the fuel feed hole 440 of up/down perforation, and through hole
The upper end of 610 is sealed by sealing gasket 42, and the magnetic valve sealing gasket 42 of upper end covers and connects with working cylinder 10, and fuel feed hole 440 is then
Being that lower end is sealed by sealing gasket 42, magnetic valve sealing gasket 65 correspondence position of upper end has circular hole thus connects with oil storage cylinder 20.
In order to ensure the free flow in magnetic valve of the liquid oil, multiple through hole 610 and fuel feed hole 440 can be set, it is ensured that the flow of liquid oil
Sufficiently large so that it is sufficiently small that piston 80 moves up and down the liquid oil flow damping being to cause.
There is the air chamber that oil storage cylinder 20 top connects solenoid body 60 upper end, and this air chamber is for being assemblied in oil storage cylinder 20 nose-circle
Adapter ring 21 on week and seal, by fastening bung flange 24, the sky that both the upper end covers 23 linked are surrounded with adapter ring 21 upper end
Chamber.When through hole 610 upper end of electromagnetic valve body 61 does not seal, then directly connecting with air chamber, the upper end of fuel feed hole 440 is protected the most all the time
Hold identical with air chamber.Oil pressure in oil storage cylinder 20 to be ensured is more than working cylinder 10, it is necessary in oil storage cylinder 20, liquid level is higher than working cylinder
10 tops, therefore a part of volume of air chamber is equipped with oil.As can be seen here, gas chamber volume have to be larger than working cylinder 10 volume change maximum
Amount.
When normally working, no current in the coil 62 on conducting magnetic column 64, to reduce caloric value, improves solenoid 60
Working life, now, under the action of the spring, magnetic valve sealing gasket 65 is flicked to be kept between the upper surface of electromagnetic valve body 61
Certain distance, then the upper end of through hole 610 is not sealed by magnetic valve sealing gasket 65, magnetic valve 61 and working cylinder 10, oil storage cylinder 20
All communicating, all regions oil pressure is equal, and oil can flow freely, and now magnetic valve is channel status.
When coil 62 is energized, magnetic valve sealing gasket 65 is drawn onto on the upper surface of electromagnetic valve body 61 thus by through hole 610
Sealing, the oil circuit through magnetic valve disconnects.If the now powerful pressure in oil storage cylinder 20 of working cylinder 10 internal pressure, the sealing of check valve
Pad the 42 compacted fuel feed holes 440 that seal, then liquid oil can not pass in and out, and in working cylinder 10, oil pressure is the biggest, and sealing gasket 42 thrust is more
Greatly, sealing is the best；If the oil pressure of oil storage cylinder 20 is more than working cylinder 10 oil pressure, then the liquid oil in oil storage cylinder 20 overcomes upper check valve 40
Spring 43 elastic force acting, push sealing gasket 42 open and enter in working cylinder 10, upper check valve 40 is path.
Lower magnetic valve 70 operation principle is with solenoid 60, and owing to bottom has piston rod 90 to pass through, therefore structure makees corresponding tune
Whole, as shown in Figure 1.
Piston rod 90, through the corresponding magnetic valve sealing gasket 65 of lower magnetic valve 70, stretches out outside lower magnetic valve 70, its end
It is fastenedly connected with end cap 200 so that piston rod 90 moves up and down and end cap 200 can be driven simultaneously to move.At oil storage cylinder 20 outer layer also
Within having an outer cylinder sheath 30, oil storage cylinder 20 and the most concyclic heart of working cylinder 10 to be situated coaxially within outer cylinder sheath 30.The edge of end cap 200
I.e. snap connection with outer cylinder sheath 30 bottom, make piston rod 90 move up and down and be converted into moving up and down of outer cylinder sheath 30.
The top of outer cylinder sheath 30 is that the end of shock-absorbing spring 100 connects.Sky selected by the shock-absorbing spring 100 of this preferred embodiment
Air spring.By above it is known that the top of oil storage cylinder 20 is equipped with the adapter ring 21 forming air chamber.Below adapter ring 21 external with one
Ring 22 connects, and outer T-Ring 22 connects with the top of shock-absorbing spring 100, then shock-absorbing spring 100, outer cylinder sheath 30, outer T-Ring 22, end cap
200 surround one jointly with air reservoir 20 closes cavity, the interior only air of described cavity.When piston rod 90 drive outer cylinder sheath 30 with
When wheel moves up and down, the inner cavity volume of shock-absorbing spring 100 also can change therewith, produces elastic deformation, by cooperating
Cylinder 20 reaches effectiveness in vibration suppression together.
In the present embodiment, shock-absorbing spring 100 uses the spring that rigidity is relatively low, to improve damping property, strengthens comfortableness.This
The shock-absorbing spring 100 of invention may be used without novel shock-absorbing spring 100 and may be used without other various motor springs, such as spiral bullet
Spring, leaf spring, torsion-bar spring, hydro-pneumatic spring etc..In order to give full play to the superiority of controllable extensible shock absorber, the present invention uses
Air spring also coordinates inflator pump, accessory air-space and solenoid electric valve to improve the overall performance of automotive suspension further, such as by
Change the blowing pressure of air spring, in that context it may be convenient to change bodywork height, it is also possible to cut off air spring by magnetic valve
Accessory air-space, changes the swept volume of air spring, thus changes the rigidity of air spring, with the need of applicable automobile difference operating mode
Want.
The oil of the present invention, the damping oil that preferred viscosities is less, make fluid pass through the damping of magnetic valve less, improve sensitivity
And comfortableness.
The advantage of direct-acting electromagnetic valve is simple in construction, is swift in response, and is easily worked, its low cost, and performance can
Leaning on, relative to guide electromagnetic valve, direct-acting electromagnetic valve simple in construction, low cost, check valve integrates with magnetic valve, altogether
With offering oil circuit on electromagnetic valve body, upper and lower respectively magnetic valve and the oil circuit of check valve, thus simplify overall structure, fall
Low manufacture requirements and manufacturing cost.
Magnetic valve generally and automobile real-time state monitoring system with the use of, upper and lower magnetic valve 60,70 and acceleration sensing
Device is connected, and measuring vehicle body when acceleration transducer has acceleration upwards, then make lower magnetic valve by certain electric control gear
70 energisings；Otherwise, when measuring downward acceleration, then solenoid 60 is energized.By so changing the work shape of magnetic valve
State is to control the flow direction of working cylinder internal damping oil, thus controls the retracted position of shock absorber, reaches the purpose of vibration damping.
In a particular application:
1., when evenness of road surface, nothing height rise and fall, magnetic valve is in normal operating conditions, and power-on and power-off magnet valve 60 70 is logical
Road, in working cylinder 10 upper and lower cavity body, damping oil can flow freely, the effect that piston 80 does not stresses, for free state.Vehicle body
Weight is undertaken by shock-absorbing spring 100.
2. when bump, wheel upwards accelerated motion, piston 80 moves upward, solenoid 60 power-off, lower electricity
Magnet valve 70 is energized；Then working cylinder 10 upper end oil circuit is path, and fluid can flow out by via through holes 610；Lower magnetic valve 60 is closed, under unidirectional
Valve 50 one-way passage, fluid is covered rapidly by lower check valve 50, then piston 80 can move upward with the least damping.The most just
Being to say, the rigidity of whole shock absorber is little, and wheel can move upward with piston 80 reaction rapidly, and vehicle body is only by spring upwards
Power and the least damping force, it is thus possible to basic maintenance is stablized, thus alleviates the vibration that bump brings.
3., when road surface depression, wheel accelerate to move downward, piston 80 moves downward, and solenoid 60 is energized, lower electromagnetism
Valve 70 power-off；Lower magnetic valve 70 is path, and fluid can flow out through the through hole 610 of lower magnetic valve 70；Working cylinder 10 upper end oil circuit is
Open circuit, upper check valve 40 one-way passage, fluid covers rapidly in working cylinder 10 upper cavity.Equally, piston 80 moves downward time institute
The damping force being subject to is the least, and wheel receives spring force and the least damping force, it is possible to declines to support vehicle body rapidly, thus slows down road
Cave in the body vibrations brought in face.
4. needing to turn to when vehicle, accelerate or during the control action such as braking, wheel is without acceleration, and vehicle body is by inertia
Power effect, the most upper and lower magnetic valve 60,70 is all energized, and working cylinder 10 upper and lower cavity is open circuit, check valve one-way passage, fluid
All can only flow into, it is impossible to flow out.Now piston 80 is immovable, and damper stiffness is big, will not compress or stretch, so that vehicle body
When racing, jerk, shock absorber pulls vehicle body to keep consistent with wheel, it is to avoid the behaviour caused owing to damper stiffness is low
Control hydraulic performance decline, vehicle body upset etc., thus the stability of vehicle when improving bend handling capacity, accelerate and slow down.Meanwhile, vibration damping
Device can be quickly completed transformation little by rigidity, that good springiness is big to rigidity, lower wall is steady, highly sensitive, dependable performance.
Therefore, the electronic control shock absorber of the present invention is the shock absorber of a kind of controllable extensible, have 2 Unidirectional solenoid valves and 2 to
Working cylinder supplements the auxiliary check valve of fluid, by being switched on and off leading to the electric current of 2 Unidirectional solenoid valves, it is possible to obtain 4 kinds
Extreme duty: 1, freely stretch；2, only stretch and do not contract；3, only contracting is not stretched；4, non-telescoping.
When needing piston to stretch, leaving, it moves freely, and its opposite direction is then closed and makes it can only single-way moving；Need
When piston is motionless, working cylinder about 10 blocks and makes piston be unable to stir any more.And the damping shock absorber of existing throttle diameter regulation and
The damping shock absorber of electromagnetism rheology damping fluid, although the movement of piston can be slowed down with damping adjusting, but can not be complete
Control the movement of piston, say, that when piston moves up and down, can move it with damping adjusting, but there is piston to instead
The possibility that direction is moved；And when making piston remain stationary as by increase damping, it is possible to there is fluid to force work by damping hole
Lower displacement beyond the Great Wall.Visible, the electronic control shock absorber of the present invention fundamentally solves the contradiction of riding comfort and operational stability,
It is completely superior to the existing shock absorber realized by damping regulation.
The controllable extensible shock absorber of the present invention is simple and reliable, low cost, and it coordinates the control of logic circuit, thus reaches change and subtract
The device that shakes damps, or makes the effect of shock absorber one-way movement, thus solves comfortableness and handling contradiction. wherein piston rod, storage
Oil cylinder, working cylinder, fairlead, the parts such as oil sealing are equal to general shock absorber, are easy to large-scale production, reduce cost. and it is overall
Shape is also suitable with original shock absorber size shape, conveniently detachable.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned detailed description of the invention is only schematic rather than restrictive, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that a lot
Form, within these belong to the protection of the present invention.
Claims (10)
1. controllable extensible shock absorber, it is characterised in that include the working cylinder (10) of internal layer, intermediate layer surround described working cylinder
(10) oil storage cylinder (20), described oil storage cylinder (20) be enclosed in interior outer cylinder sheath (30), being contained in described working cylinder of outer layer
(10) piston (80) that is divided into two not connected cavitys up and down by internal for working cylinder (10) in, be contained on piston (80) with
Its piston rod moved up and down (90), lay respectively at described working cylinder (10) top bottom with by energising or power-off connects or
Close the power-on and power-off magnet valve (60/70) of oil circuit between described working cylinder (10) and oil storage cylinder (20), lay respectively at power-on and power-off
Check valve up and down (40/50), one end between magnet valve (60/70) and piston (80) seal even with described oil storage cylinder (20) upper end
Connect the shock-absorbing spring (100) that the other end is tightly connected with described outer cylinder sheath (30) upper end；
Described power-on and power-off magnet valve (60/70) is direct-acting electromagnetic valve；
Described upper and lower check valve (40/50) connects or closes by opening or closing on described oil storage cylinder (20) and working cylinder (10)
Oil circuit between lower chamber；
Described outer cylinder sheath (30) lower end is closed by end cap (200), and described piston rod (90) stretches out lower magnetic valve (70) and with described
End cap (200) is fixing to be connected to drive described outer cylinder sheath (30) to move up and down.
Controllable extensible shock absorber the most according to claim 1, it is characterised in that described piston (80) and described working cylinder
(10) matched in clearance, it is structure as a whole with piston rod (90).
Controllable extensible shock absorber the most according to claim 1, it is characterised in that described upper and lower check valve (40/50) is wrapped
Include gasket base (41), sealing gasket (42) and spring (43) described gasket base (41) and include column part and the method for cylinder front end
Blue circle, described sealing gasket (42) be enclosed within column part and and flange circle between separated by spring (43).
Controllable extensible shock absorber the most according to claim 3, it is characterised in that described power-on and power-off magnet valve (60/70) is wrapped
Include electromagnetic valve body (61), coil (62), coil rack (63), conducting magnetic column (64) and magnetic valve sealing gasket (65), described magnetic valve
Sealing gasket (65) covers in the end face outside of described electromagnetic valve body (61) described electromagnetic valve body (61) built with conducting magnetic column (64), institute
State and be wound with described coil (62) on the coil rack (63) on conducting magnetic column (64).
Controllable extensible shock absorber the most according to claim 4, it is characterised in that described conducting magnetic column (64) and described sealing gasket
Seat (61) is structure as a whole.
Controllable extensible shock absorber the most according to claim 4, it is characterised in that described magnetic valve sealing gasket (65) and electromagnetism
Equipped with spring between valve body (61), spring is by described magnetic valve sealing gasket (65) and the interval of electromagnetic valve body (61) end face outside
Open.
Controllable extensible shock absorber the most according to claim 4, it is characterised in that vertical around it on described electromagnetic valve body (61)
Center line offers through hole (610) and the fuel feed hole (440) of up/down perforation.
Controllable extensible shock absorber the most according to claim 7, it is characterised in that described pupil (610) one end is by described electricity
Magnet valve sealing gasket pad (65) covers, and the other end connects with working cylinder (10)；Described enter porose (440) one sections by described sealing gasket
(42) sealing, the other end connects with oil storage cylinder (20).
Controllable extensible shock absorber the most according to claim 8, it is characterised in that described oil storage cylinder (20) upper end has with described
Air chamber described in the air chamber that oil storage cylinder (20) connects is by by adapter ring (21) and the two cavity sealed of upper end cover (23) and described
Adapter ring (21) is assemblied on the circumferential outer surface of described oil storage cylinder (20) upper end, and described upper end cover (23) covers at described adapter ring
(21) upper end and by fastening bung flange (24) be tightly connected with adapter ring (21).
Controllable extensible shock absorber the most according to claim 9, it is characterised in that the lower end of described adapter ring (21) is with outer
The upper end of T-Ring (22) is tightly connected, and the lower end of described outer T-Ring (22) is connected with shock-absorbing spring (100), is sequentially connected the institute connect
State and enclose between adapter ring (21), outer T-Ring (22), shock-absorbing spring (100), outer cylinder sheath (30), end cap (300) and oil storage cylinder (20)
The cavity become is for sealing cavity, and inside is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548663.6A CN105927699A (en) | 2016-07-13 | 2016-07-13 | Controllable extension vibration reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610548663.6A CN105927699A (en) | 2016-07-13 | 2016-07-13 | Controllable extension vibration reducer |
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| CN105927699A true CN105927699A (en) | 2016-09-07 |
Family
ID=56827750
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610548663.6A Pending CN105927699A (en) | 2016-07-13 | 2016-07-13 | Controllable extension vibration reducer |
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| JP2013096566A (en) * | 2011-11-07 | 2013-05-20 | Honda Motor Co Ltd | Damping force variable damper |
| US20140202561A1 (en) * | 2013-01-24 | 2014-07-24 | Kendrion (Villingen) Gmbh | Electromagnetic fluid valve |
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Application publication date: 20160907 |
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