CN207496416U - Vehicle suspension system - Google Patents
Vehicle suspension system Download PDFInfo
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- CN207496416U CN207496416U CN201721034543.0U CN201721034543U CN207496416U CN 207496416 U CN207496416 U CN 207496416U CN 201721034543 U CN201721034543 U CN 201721034543U CN 207496416 U CN207496416 U CN 207496416U
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Abstract
This application involves vehicle suspension systems.The suspension system includes actuator, orifice valve and fluid circuit, the actuator is connected with the orifice valve with the fluid circuit, when external drive acts on the actuator, medium of the actuator into the fluid circuit applies active force so that the medium flows through the orifice valve.In the program, orifice valve is connected respectively with actuator and fluid circuit, at this time, orifice valve becomes a damping piece being arranged in fluid circuit, and under the action of actuator, the medium in fluid circuit generates damping force when flowing through orifice valve, rather than it independent as damper of the prior art is arranged on the chassis of vehicle, in contrast, the structure for the vehicle suspension system that the application provides is compacter, integrated level higher.
Description
Technical field
This application involves cushion technique field more particularly to a kind of vehicle suspension systems.
Background technology
When driving, body oscillating endangers the problem of having become common cognition to vehicle caused by human body, with people
Improvement of living standard, it is also higher and higher to the attention rate of vehicle driving comfort.It is the closeest with vehicle ride comfort sexual intercourse
What is cut is exactly the matching of the damper and bearing spring on vehicle.Bearing spring and damper match different damping ratios can be with
Directly influence the comfort of vehicle traveling.
Conventional truck suspension system includes mechanical type spring and dual-tube shock absorber, and the two is coordinating vehicle ride comfort and behaviour surely
Property when can not reach best simultaneously, this is because, the rigidity of higher ride comfort requirement spring is smaller, and good handling stability
It is required that spring rate is bigger, so in order to obtain good vehicle performance, ride comfort and handling stability have certain compromise.
In the relevant technologies, hydraulic pressure interconnection hydro-pneumatic suspension system can ensure that vehicle has preferable operational stability peace simultaneously
Pliable, this is because the build-in attribute of hydro-pneumatic suspension system determines the non-linear of its rigidity, vehicle is firm in comfort region
Degree is small compared to traditional suspension, and so as to which comfort is good, vehicle rigidity in area of security is big compared to traditional suspension, so as to grasp
Stability is good.
Existing hydraulic pressure interconnection hydro-pneumatic suspension system interconnects suspension actuator as shown in Figure 1, the suspension system includes hydraulic pressure
1 ', damper 2 ' and hydraulic circuit, hydraulic pressure interconnection suspension actuator 1 ' are connected with hydraulic circuit, hydraulic pressure interconnection suspension start
Device 1 ' is arranged in parallel with damper 2 ', and when external drive acts on hydraulic pressure interconnection suspension actuator 1 ', damper 2 ' provides resistance
Buddhist nun's power is to absorb partial vibration energy.In above structure, damper 2 ' occupies larger exterior space, leads to hydraulic pressure interconnection oil
The structure shortcoming compactedness of gas suspension system, integrated level be not high.
Utility model content
This application provides a kind of vehicle suspension systems, it is intended to improve the compactedness and integrated level of the suspension system.
This application provides a kind of vehicle suspension systems, including actuator, orifice valve and fluid circuit, the actuator
It is connected with the orifice valve with the fluid circuit,
When external drive acts on the actuator, medium application effect of the actuator into the fluid circuit
Power is so that the medium flows through the orifice valve.
Preferably, one end of the orifice valve is connected to the actuator, and the other end is connected to the fluid circuit.
Preferably, accumulator is further included, one end of the orifice valve is connected to the accumulator, and the other end is connected to described
Fluid circuit.
Preferably, the orifice valve has the first opening and the second opening, under the pressure effect of the medium, described the
One opening and second opening in communication, first opening and any one in the described second opening are import, another
Person is outlet.
Preferably, the orifice valve include the valve body with accommodating chamber and be set to the accommodating chamber it is interior and with the valve body
The spool of sealed connection,
The both ends of the accommodating chamber are respectively that first opening and described second are open,
The spool includes valve disc, the first leaf valve and the second leaf valve, first leaf valve and second leaf
Plate valve is connected to axial both ends of the valve disc along the accommodating chamber, and the valve disc is connect with the valve seal,
The valve disc is equipped with first through hole and the second through-hole, and the medium acts on described first via the first through hole
For leaf valve to generate the first damping force, the medium acts on second leaf valve to generate second via second through-hole
Damping force.
Preferably, at least one of first leaf valve and second leaf valve are stacked leaf valve, described
Stacked leaf valve includes multiple valve blocks,
In each valve block for forming the stacked leaf valve, axial direction of at least one valve block along the accommodating chamber
The outer contour of gained projection surrounds another described valve block along the outer contour projected obtained by this direction.
Preferably, first leaf valve includes the multiple valve blocks being stacked, respectively the first valve block, the second valve
Piece and third valve block, each valve block are round valve block,
The quantity of first valve block is two, and the quantity of second valve block and the third valve block is one,
Along the axial direction of the accommodating chamber, two first valve blocks, second valve block and the third valve block according to
Secondary arrangement, first valve block than other valve blocks closer to the valve disc,
And the diameter of first valve block, second valve block, the third valve block is sequentially reduced；
First leaf valve includes the multiple valve blocks being stacked, respectively the first valve block, the second valve block, third
Valve block and the 4th valve block, each valve block are round valve block,
First valve block, second valve block quantity be two, the quantity of the third valve block is four, described
The quantity of 4th valve block is one,
Along the axial direction of the accommodating chamber, two first valve blocks, second valve block, a third valve
Piece, the 4th valve block, second valve block, three third valve blocks are arranged successively, and the 4th valve block is than other
The valve block closer to the valve disc,
And the diameter of first valve block, second valve block, the third valve block, the 4th valve block is sequentially reduced；
Second leaf valve includes multiple valve blocks for being stacked, respectively the 4th valve block, the 5th valve block and
6th valve block, each valve block is circular configuration,
The quantity of 4th valve block is two, and the quantity of the 5th valve block and the 6th valve block is one,
Along the axial direction of the accommodating chamber, two the 4th valve blocks, the 5th valve block and the 6th valve block according to
Secondary arrangement, the 4th valve block than other valve blocks closer to the valve disc,
And the diameter of the 4th valve block, the 5th valve block, the 6th valve block is sequentially reduced.
Preferably, it forms in each valve block in first leaf valve, the edge of at least one offers first
Notch, the medium flow to the outlet from the import via the first through hole, first notch；And/or
It forms in each valve block in second leaf valve, the edge of at least one offers the second notch, institute
It gives an account of matter and flow to the outlet via second through-hole, second notch from the import.
Preferably, the spool further includes the first valve guard for being connected to first leaf valve and/or is connected to described
Second valve guard of two leaf valves,
First valve guard is set to the side of first leaf valve far from the valve disc, and second valve guard is set to
The side of second leaf valve far from the valve disc,
When the medium applies active force to first leaf valve, first valve guard is limited with first leaf valve
Position cooperation；When the medium applies active force to first leaf valve, second valve guard is limited with second leaf valve
Position cooperation.
Preferably, the orifice valve further includes the first filtration members and/or the second filtration members for being connected to the valve body,
First filtration members are set to first opening, the second opening described in second filtration members, alternatively,
The orifice valve further includes the first filtration members and/or the second filtration members for being connected to the valve body, first mistake
Filter part is covered at outside first leaf valve, and second filtration members are covered at outside second leaf valve.
Preferably, the valve body includes first part and second part, and the first part and the second part are removable
Unload connection.
Preferably, the first part includes first flange, and the second part includes second flange, the first flange
Part fastening is bolted with the second flange.
Preferably, the orifice valve further includes sealing element, and the first part passes through the sealing with the second part
Part is tightly connected.
Preferably, the valve body includes first part and second part, and the first part welds with the second part.
The technical solution that the application provides can reach following advantageous effect：
This application provides a kind of vehicle suspension system, wherein, orifice valve is commonly connected to actuator for flow of media
Fluid circuit in, when external drive acts on actuator, medium of the actuator into fluid reflux applies active force, the work
Firmly so that medium flows through orifice valve and generates damping force.At this point, the damping characteristic of orifice valve and the non-linear rigidity of actuator
Characteristics match, to meet the damping requirement of vehicle.In the program, orifice valve is connected respectively with actuator and fluid circuit, at this point,
Orifice valve becomes a damping piece being arranged in fluid circuit, and under the action of actuator, the medium in fluid circuit flows through
Generated during orifice valve damping force rather than it is independent as damper of the prior art be arranged on the chassis of vehicle, phase
Than under, the structure for the vehicle suspension system that the application provides is compacter, integrated level higher.
It should be understood that above general description and following detailed description is only exemplary, this can not be limited
Application.
Description of the drawings
Fig. 1 is that the hydraulic pressure of the prior art interconnects the schematic diagram of hydro-pneumatic suspension system；
Fig. 2 is the schematic diagram of vehicle suspension system provided by the embodiments of the present application；
Fig. 3 is the connection diagram of orifice valve provided by the embodiments of the present application and actuator；
Fig. 4 is the connection diagram of orifice valve provided by the embodiments of the present application and accumulator；
Fig. 5 is the sectional view of orifice valve provided by the embodiments of the present application；
Fig. 6 is the decomposition view of the embodiment one of the first leaf valve provided by the embodiments of the present application；
Fig. 7 is the decomposition view of the embodiment two of the first leaf valve provided by the embodiments of the present application；
Fig. 8 is the decomposition view of the embodiment of the first leaf valve provided by the embodiments of the present application and the second leaf valve；
Fig. 9 is the schematic diagram of the first notch of one of valve block in the first leaf valve provided by the embodiments of the present application；
Figure 10 a are in orifice valve provided by the embodiments of the present application, and the one of which of the first filtration members and the second filtration members is real
Apply the schematic diagram of example；
Figure 10 b are in orifice valve provided by the embodiments of the present application, and the first filtration members and the another of the second filtration members are implemented
The schematic diagram of example；
Figure 11 a are the signal that first part and second part are detachably connected in orifice valve provided by the embodiments of the present application
Figure；
Figure 11 b are the schematic diagram of first part and second part welding in orifice valve provided by the embodiments of the present application；
Figure 12 is the curve graph of the damping characteristic of orifice valve provided by the embodiments of the present application.
Reference numeral：
In Fig. 1：
1 '-hydraulic pressure interconnects suspension actuator；
2 '-damper.
In Fig. 2-12：
1- actuator；
2- orifice valves；
21- first is open；22- second is open；
23- valve bodies, 24- spools；25- threaded connectors；
231- first parts, 232- second parts；
2311- first flanges；2321- second flanges；
241- valve discs, the first leaf valves of 242-, the second leaf valves of 243-；The first valve guards of 244-,
The second valve guards of 245-；
2411- first through hole, the second through-holes of 2412-；The first notches of 2421-；
The first valve blocks of 242a-, the second valve blocks of 242b-, 242c- third valve blocks；
The-the first valve blocks of 242a ', the-the second valve blocks of 242b ', 242c '-third valve block,
Four valve blocks of 242d '-the；
The 4th valve blocks of 243a-, the 5th valve blocks of 243b-, the 6th valve blocks of 243c-；
25- threaded connectors；
251- bolts, 252- nuts；
The first filtration members of 26-, the second filtration members of 27-；
26 '-the first filtration members, 27 '-the second filtration members；
28- sealing elements.
3- fluid circuits；
4- accumulators.
Attached drawing herein is incorporated into specification and forms the part of this specification, shows the implementation for meeting the application
Example, and for explaining the principle of the application together with specification.
Specific embodiment
The application is described in further detail below by specific embodiment and with reference to attached drawing.
As shown in Fig. 2, this application provides a kind of vehicle suspension system, which includes actuator 1, orifice valve 2
And fluid circuit 3, actuator 1 are connected with orifice valve 2 with fluid circuit 3.Wherein, actuator 1 has non-linear rigidity
Characteristic, orifice valve 2 have damping characteristic, when external drive acts on actuator 1, medium of the actuator 1 into fluid circuit
Apply active force so that the medium flows through orifice valve 2, at this point, nonlinear stiffness characteristic matches with damping characteristic, to meet
Shock attenuation needs in vehicle travel process.
According to above description, orifice valve 2 is connected respectively with actuator 1 and fluid circuit 3, is set at this point, orifice valve 2 becomes
An element in fluid circuit 3 is put, under the action of actuator 1, the medium in fluid circuit 3 produces when flowing through orifice valve 2
Raw damping force rather than it is independent as damper 2 ' of the prior art be arranged on the chassis of vehicle, in contrast,
Apply for that the structure of the vehicle suspension system provided is compacter, integrated level higher.
The installation position of orifice valve 2 can have different schemes, a kind of embodiment, as shown in figure 3, one end of orifice valve 2 connects
Actuator 1 is connected to, the other end is connected to fluid circuit 3.That is, orifice valve 2 is mounted on the shell of actuator 1, and hinder
Buddhist nun's valve 2 is connected with the chamber of both actuator 1.
Another embodiment, as shown in figure 4, the vehicle suspension system can also include accumulator 4, one end of orifice valve 2
Accumulator 4 is connected to, the other end is connected to fluid circuit 3.Wherein, accumulator 4 can be as a kind of energy savings in system
Device, it, which is in due course, stores the energy conversion in system for compression energy or potential energy, when system needs,
Compression energy or potential energy are changed into the energy such as hydraulic pressure or air pressure again and released, mends feed system again.When system instantaneous pressure
During increase, it can absorb the energy of this part.Ensure that whole system pressure is normal.
In above two embodiment, orifice valve 2 can directly be connect with actuator 1, can also directly be connected with accumulator 4
It connects, two kinds of installation sites can make orifice valve 2 generate damping force, match so as to fulfill the stiffness characteristics with actuator 1.
Welding may be used with the connection mode of accumulator 4 in orifice valve 2 and actuator 1, screw thread can also be used to connect
It connects, the application is not construed as limiting this.When using being threadedly coupled, this phenomenon is easily destroyed at screw thread in order to alleviate, it can be with
Internal thread is set on orifice valve 2, for external screw thread, internal thread causes the risk of destruction relatively low due to colliding with.
As shown in figure 5, orifice valve 2 has the first opening 21 and the second opening 22, under the pressure effect of medium, first opens
Mouth 21 is connected with the second opening 22.Under normal conditions, the first opening 21 is used only as import, and the second opening 22 is used only as exporting,
The two is relatively-stationary.But in the present embodiment, first opening 21 with second be open 22 in any one can be set as into
Mouthful, i.e. the import of medium, and another one can be set as exporting accordingly, i.e. media outlet, that is to say, that when fluid circuit 3
In medium have direction opposite two when flowing to, in a first direction, the first opening 21 is used as import, and the second opening 22 is used
For export；In a second direction, the second opening 22 is used as import, and the first opening 21 may be used as exporting.In this scheme, work as medium
When flowing through in opposite direction to orifice valve 2, orifice valve 2 can generate damping force in two directions, without increasing it
Its orifice valve so as to reduce the setting quantity of orifice valve 2, further improves the compactedness and integrated level of suspension system.
In the embodiment shown in fig. 5, orifice valve 2 includes the valve body 23 with accommodating chamber S and is set in accommodating chamber S simultaneously
The spool 24 being tightly connected with valve body 23, wherein, the both ends of accommodating chamber S are respectively the first opening 21 and the second opening 22, spool
24 are set between the first opening 21 and the second opening 22, and accommodating chamber S is completely cut off into two chambers.Spool 24 includes valve disc
241st, the first leaf valve 242 and the second leaf valve 243, the first leaf valve 242 and the second leaf valve 243 are connected to valve disc
241 are tightly connected along the axial both ends of accommodating chamber S, valve body 23 with spool 24, in fact, be more specifically valve disc 241 and
Valve body 23 is tightly connected.For example, polytetrafluoroethylene (PTFE) can be set encapsulated between valve disc 241 and valve body 23；It for another example, can also be
O-ring seal is set between the two or sealing etc. is directly realized in a manner that transition coordinates or is interference fitted.
Valve disc 241 is connected through a screw thread part 25 with the first leaf valve 242 and the second leaf valve 243 and connect fastening, and screw thread connects
Fitting 25 includes bolt 251 and nut 252, on the one hand, bolt 251 is provided with trepanning on the end face far from head, treats nut 252
After tightening, tapping is destroyed, it is another to play locking effect to ensure bolt 251 and the tightness of the cooperation of nut 252
Aspect, nut 252 can also use stop nut.
Valve disc 241 is equipped with 2411 and second through-hole 2412 of first through hole, and 2411 and second through-hole 2412 of first through hole is
Through valve disc 241, medium can flow through orifice valve 2 in both directions, for example, when medium (A to) in Fig. 5 stream along the first direction
During through orifice valve 2, medium acts on the first leaf valve 242 to generate the first damping force via first through hole 2411；When medium edge
When second direction (B to) in Fig. 5 flows through orifice valve 2, medium acts on the second leaf valve 243 to produce via the second through-hole 2412
Raw second damping force.The orifice valve 2 exports different damping forces by the first leaf valve 242 and the second leaf valve 243 respectively, makes
The structure for obtaining orifice valve 2 is more flexible, and the requirement of the damping characteristic under different operating modes to orifice valve 2 is met with this.
2411 and second through-hole 2412 of first through hole can set one respectively, can also be respectively set to multiple.
It should be noted that when medium flows through orifice valve 2 along the first direction, since the second through-hole 2412 is by the second blade
Valve 243 seals, and medium can only flow into orifice valve 2 from first through hole 2411, conversely, when medium flows through orifice valve 2 in a second direction
When, since first through hole 2411 is sealed by the first leaf valve 242, medium can only flow into orifice valve 2 from the second through-hole 2412, thus
Can different damping forces be provided by the first leaf valve 242 and the second leaf valve 243 respectively.
It follows that for the orifice valve 2 of above structure, the structure of the first leaf valve 242 and the second leaf valve 243
It is the important factor in order of damping characteristic.In the present embodiment, in preferably the first leaf valve 242 and the second leaf valve 243 at least
One is stacked leaf valve, and stacked leaf valve includes multiple valve blocks, and in each valve block, at least one valve block is along accommodating chamber S's
The outer contour that axial gained projects surrounds another valve block along the outer contour projected obtained by this direction.That is, each valve
In piece, the size of at least one valve block and the size of remaining valve block are unequal, after setting in this way, when the pressure of medium acts on this
During leaf valve, larger-size valve block can generate larger moment of flexure, and the smaller valve block of size can provide larger rigidity,
So as to fulfill the control to damping force size.
Its structure is described in detail by taking the first leaf valve 242 as an example below.
Embodiment one
It is respectively the first valve block 242a, the as shown in fig. 6, the first leaf valve 242 includes multiple valve blocks for being stacked
Two valve block 242b and third valve block 242c, each valve block are round valve block.Wherein, the quantity of the first valve block 242a is two,
The quantity of second valve block 242b and third valve block 242c are one, along the axial direction of accommodating chamber S, two the first valve block 242a,
Second valve block 242b and third valve block are arranged successively, and the first valve block 242a is than the second valve block 242b and third valve block 242c more
Close to valve disc 241, the first valve block 242a, the second valve block 242b, third valve block 242c diameter be sequentially reduced.After such setting,
Three kinds of various sizes of valve blocks are laminated to form similar tower structure, and the valve block of multiple diameters is contained in the tower structure, when
When medium acts on each valve block, the moment of flexure that the valve block of different-diameter generates is different, and the moment of flexure that larger-diameter valve block generates is larger,
The moment of flexure that the valve block of small diameter then generates is smaller, can generate gradual increased support force and volume with the increase of deformation
Outer rigidity, so that the rigidity of the first leaf valve 242 is controllable.In addition, the valve block of small diameter can increase and other valves
Frictional force between piece reduces the vibration of the first leaf valve 242.
Embodiment two
As shown in fig. 7, the first leaf valve 242 includes multiple valve blocks for being stacked, respectively the first valve block 242a ', the
Two valve block 242b ', third valve block 242c ' and the 4th valve block 242d ', each valve block are round valve block.Wherein, the first valve block
The quantity of 242a ' and the second valve block 242b ' are two, and the quantity of third valve block 242c ' is four, the 4th valve block 242d '
Quantity for one, along the axial direction of accommodating chamber S, two the first valve block 242a ', the second valve block 242b ', a third valve block
242c ', a 4th valve block 242d ', a second valve block 242b ', three third valve block 242c ' arrange successively, the 4th valve block
242d ' than other valve blocks closer to valve disc 241, and the first valve block 242a ', the second valve block 242b ', third valve block 242c ', the 4th
The diameter of valve block 242d ' is sequentially reduced.Wherein, the thickness of two the first valve block 242a ' can be different, can also be identical.
In the embodiment shown in fig. 7, above-mentioned each valve block is stacked to form two similar tower structures, and two tower-like
Structure is superimposed.Wherein, third valve block 242c ' provides support at center for other valve blocks so that other valve blocks are in edge
Bending, meanwhile, the second valve block 242b ' is distributed between remaining valve block, so that the intensity of the first leaf valve increases, is supported
The ability of resistance to deformation increases.
The embodiment of the first leaf valve 242 is illustrated above, the second leaf valve 243 may be used and the first blade
Structure described in the embodiment one of valve 242 or embodiment two, certainly, according to the difference of specific use environment, the second leaf
Plate valve 243 can also select other structures.
As shown in figure 8, the second leaf valve 243 can include multiple valve blocks for being stacked, respectively the 4th valve block 243a,
5th valve block 243b and the 6th valve block 243c, each valve block are circular configuration, wherein, the quantity of the 4th valve block 243a is two
A, the quantity of the 5th valve block 243b and the 6th valve block 243c are one.Along the axial direction of accommodating chamber S, two the 4th valve blocks
243a, the 5th valve block 243b and the 6th valve block 243c arrange successively, and the 4th valve block 243a is than other valve blocks closer to valve disc
241, and the diameter of the 4th valve block 243a, the 5th valve block 243b, the 6th valve block 243c are sequentially reduced.Second leaf valve 243
Structure is identical with the structure of the first leaf valve 242 in embodiment one, and the technique effect generated is identical, and details are not described herein again.
It in above-mentioned each embodiment, can also be set as follows, that is, as shown in figure 9, the first leaf valve 242 of composition
Each valve block in, the edge of at least one offers the first notch 2421, this first notch 2421 is flowed through for medium, at this point,
The size of first notch 2421 becomes an influence factor of first Valve opening velocity point for determining vehicle damping characteristic, in addition
Influence factor further include the predeformation situation of each valve block when the first leaf valve 242 is tightened with threaded connector, the Valve opening velocity
Point is the key that one of vehicle handling stability energy.
Similarly, in each valve block of the second leaf valve 243 of composition, the edge of at least one offers the second notch, this
Two notches are flowed through for medium.The effect of second notch is identical with the effect of the first notch, and details are not described herein again.
Specifically, the maximum deformation quantity of the first leaf valve 242 and the second leaf valve 243 is no more than respectively maximum
Yield deformation amount, the deflection determine the second Valve opening velocity point of vehicle damping characteristic.
In the embodiment shown in Fig. 6-8, spool 24 further includes the first valve guard 244 for being connected to the first leaf valve 242, the
One valve guard 244 is set to the first side of the leaf valve 242 far from valve disc 241, when medium applies active force to the first leaf valve 242
When, the first valve guard 244 and the limiting of the first leaf valve 242 coordinate, and the deflection of the first leaf valve 242 is limited with this.
Similarly, spool 24 can also include being connected to the second valve guard 245 of the second leaf valve 243, when medium is to the second leaf
When plate valve 243 applies active force, the second valve guard 245 and the limiting of the second leaf valve 243 coordinate, and the second leaf valve 243 is limited with this
Deflection.
First valve guard 244 is connected through a screw thread part 25 and links together with each valve block in the first leaf valve 242, the second valve
Gear 245 is connected through a screw thread part 25 and links together with each valve block in the second leaf valve 243.
For purification medium, impurity is avoided to enter orifice valve with medium, the orifice valve 2 in the application, which further includes, is connected to valve
First filtration members 26 of body 23 and the second filtration members 27, a kind of embodiment, refer to Fig. 5, and the first filtration members 26 are set to first
It being open at 21, the second filtration members 27 are set at the second opening 22, when medium enters orifice valve 2 at the first opening 21, the
One filtration members 26 play filtering function, filter out impurity, when medium enters orifice valve 2 at the second opening 22, the second filtration members 27
Filtering function is played, filters out impurity.Certainly, the first filtration members 26 and the second filtration members 27 can also select a setting.
Another embodiment refers to Figure 10 a, and the first filtration members 26 ' for being connected to valve body 23 cover at the first leaf valve
Outside 242, the second filtration members 27 ' for being connected to valve body 23 are covered at outside the second leaf valve 243.First filtration members 26 ' and the second mistake
It is square structure to filter part 27 ', and the respective edge of the two is provided with reinforcement structure, to increase the first filtration members 26 ' and second
Filtration members 27 ' are in the intensity of edge.
Although the first shown filtration members 26 ' and the second filtration members 27 ' are square structure in figure loa,
First filtration members 26 ' and the second filtration members 27 ' are not limited only to the situation shown in Figure 10 a.
Figure 10 b are referred to, in the embodiment shown in Figure 10 b, the first filtration members 26 ' and the second filtration members 27 ' are circle
Arcuate structure, wherein, the first filtration members 26 ' are covered at outside the first leaf valve 242, and the second filtration members 27 ' cover at the second blade
Outside valve 243, medium is filtered by the first filtration members 26 ' and the second filtration members 27 '.
The above embodiment can play the role of filter medium, and those skilled in the art can select as the case may be
Select setting.
Continuing with referring to Fig. 5, valve body 23 includes first part 231 and second part 232, first part 231 and second
232 are divided to be detachably connected.Dismountable connection structure is easy to implement repair and debugging to orifice valve.
There are many modes being detachably connected, such as clamping, threaded connection etc..It is as shown in fig. 11a, excellent in the present embodiment
First part 231 is selected to include first flange 2311, second part 232 includes second flange 2321, first flange 2311 and second
Part fastening is bolted in flange 2321, this is simple in structure, easy to connect and secured.
In some other embodiment, first part 231 can also use welding with second part 232, such as Figure 11 b institutes
Show.First part 231 is welded to connect with second part 232, and weld is at S, and weld is along first part 231 and second part
232 joint extension.
For split type first part 231 and second part 232, also need to consider first part 231 and second
Points 232 leakproofness, for this purpose, it is preferred that orifice valve 2 further includes sealing element 28, as shown in Fig. 5, Figure 10 b and Figure 11 a, first
231 are divided to be tightly connected with second part 232 by sealing element 28, sealing element ensure that the damping force of suspension system, avoid the occurrence of
The defects of medium is revealed.
As shown in figure 12, Figure 12 shows the damping characteristic curve of the orifice valve 2 for the vehicle suspension system that the application provides
Figure.Abscissa represents the speed of service of the piston rod in actuator 1 in Figure 12, and ordinate represents damping force.Speed is 0-1m/s
Period represents that piston rod is in compressive state, and speed represents that piston rod is in stretched condition during being -1-0m/s.Break in figure
Vk1 and Vk1y is respectively that the first Valve opening velocity point is upheld and compressed to orifice valve 2, which has vehicle handling stability and ride comfort
Larger impact.Break Vk2 and Vk2y are respectively that the second Valve opening velocity point is upheld and compressed to orifice valve 2, with the first Valve opening velocity point
Joint effect vehicle ride comfort and handling stability.
Under normal conditions, vehicle suspension system includes four parts, i.e. left forward side suspension, right forward side suspension, rear is left
Side suspension and right rear side suspension.The application is illustrated by taking the suspension of left rear side as an example, and the structure of other each sections can be with
It is identical with the structure of left rear side suspension, it can also be different.
The foregoing is merely the preferred embodiments of the application, are not limited to the application, for the skill of this field
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of vehicle suspension system, which is characterized in that including actuator, orifice valve and fluid circuit, the actuator with
The orifice valve is connected with the fluid circuit,
When external drive acts on the actuator, medium of the actuator into the fluid circuit apply active force with
The medium is made to flow through the orifice valve.
2. vehicle suspension system according to claim 1, which is characterized in that one end of the orifice valve is connected to the work
Dynamic device, the other end are connected to the fluid circuit.
3. vehicle suspension system according to claim 1, which is characterized in that further include accumulator, the one of the orifice valve
End is connected to the accumulator, and the other end is connected to the fluid circuit.
4. according to claim 1-3 any one of them vehicle suspension systems, which is characterized in that the orifice valve has first to open
Mouth and the second opening, under the pressure effect of the medium, first opening and second opening in communication, described first
Opening is import with any one in the described second opening, and another one is outlet.
5. vehicle suspension system according to claim 4, which is characterized in that the orifice valve includes the valve with accommodating chamber
Body and the spool connecting in the accommodating chamber and with the valve seal is set to,
The both ends of the accommodating chamber are respectively that first opening and described second are open,
The spool includes valve disc, the first leaf valve and the second leaf valve, first leaf valve and second leaf valve
Axial both ends of the valve disc along the accommodating chamber are connected to, the valve disc is connect with the valve seal,
The valve disc is equipped with first through hole and the second through-hole, and the medium acts on first blade via the first through hole
For valve to generate the first damping force, the medium acts on second leaf valve to generate the second damping via second through-hole
Power.
6. vehicle suspension system according to claim 5, which is characterized in that first leaf valve and second blade
At least one of valve is stacked leaf valve, and the stacked leaf valve includes multiple valve blocks,
In each valve block for forming the stacked leaf valve, axial gained of at least one valve block along the accommodating chamber
The outer contour of projection surrounds another described valve block along the outer contour projected obtained by this direction.
7. vehicle suspension system according to claim 6, which is characterized in that first leaf valve includes what is be stacked
Multiple valve blocks, respectively the first valve block, the second valve block and third valve block, each valve block are round valve block,
The quantity of first valve block is two, and the quantity of second valve block and the third valve block is one,
Along the axial direction of the accommodating chamber, two first valve blocks, second valve block and the third valve block are arranged successively
Cloth, first valve block than other valve blocks closer to the valve disc,
And the diameter of first valve block, second valve block, the third valve block is sequentially reduced；
Alternatively,
First leaf valve includes the multiple valve blocks being stacked, respectively the first valve block, the second valve block, third valve block
And the 4th valve block, each valve block is round valve block,
First valve block, second valve block quantity be two, the quantity of the third valve block is four, the described 4th
The quantity of valve block is one,
Along the axial direction of the accommodating chamber, two first valve blocks, second valve block, the third valve block, one
A 4th valve block, second valve block, three third valve blocks are arranged successively, and the 4th valve block is than other valves
Piece closer to the valve disc,
And the diameter of first valve block, second valve block, the third valve block, the 4th valve block is sequentially reduced；
Second leaf valve includes the multiple valve blocks being stacked, respectively the 4th valve block, the 5th valve block and the 6th
Valve block, each valve block is circular configuration,
The quantity of 4th valve block is two, and the quantity of the 5th valve block and the 6th valve block is one,
Along the axial direction of the accommodating chamber, two the 4th valve blocks, the 5th valve block and the 6th valve block are arranged successively
Cloth, the 4th valve block than other valve blocks closer to the valve disc,
And the diameter of the 4th valve block, the 5th valve block, the 6th valve block is sequentially reduced.
8. according to claim 6-7 any one of them vehicle suspension systems, which is characterized in that in composition first leaf valve
Each valve block in, the edge of at least one offers the first notch, and the medium is from the import via described first
Through-hole, first notch flow to the outlet；And/or
It forms in each valve block in second leaf valve, the edge of at least one offers the second notch, is given an account of
Matter flow to the outlet from the import via second through-hole, second notch.
9. according to claim 5-7 any one of them vehicle suspension systems, which is characterized in that the spool, which further includes, to be connected to
First valve guard of first leaf valve and/or the second valve guard for being connected to second leaf valve,
First valve guard is set to the side of first leaf valve far from the valve disc, and second valve guard is set to described
Side of second leaf valve far from the valve disc,
When the medium applies active force to first leaf valve, first valve guard is matched with first leaf valve limiting
It closes；When the medium applies active force to first leaf valve, second valve guard is matched with second leaf valve limiting
It closes.
10. according to claim 5-7 any one of them vehicle suspension systems, which is characterized in that the orifice valve further includes company
The first filtration members and/or the second filtration members of the valve body are connected to,
First filtration members are set to first opening, the second opening described in second filtration members or
First filtration members are covered at outside first leaf valve, and second filtration members cover at second leaf valve
Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034543.0U CN207496416U (en) | 2017-08-17 | 2017-08-17 | Vehicle suspension system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034543.0U CN207496416U (en) | 2017-08-17 | 2017-08-17 | Vehicle suspension system |
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| Publication Number | Publication Date |
|---|---|
| CN207496416U true CN207496416U (en) | 2018-06-15 |
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|---|---|---|---|
| CN201721034543.0U Active CN207496416U (en) | 2017-08-17 | 2017-08-17 | Vehicle suspension system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444048A (en) * | 2017-08-17 | 2017-12-08 | 常州万安汽车部件科技有限公司 | Vehicle suspension system |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444048A (en) * | 2017-08-17 | 2017-12-08 | 常州万安汽车部件科技有限公司 | Vehicle suspension system |
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