CN106286676B - Damper, vehicle suspension and vehicle - Google Patents
Damper, vehicle suspension and vehicle Download PDFInfo
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- CN106286676B CN106286676B CN201510317795.3A CN201510317795A CN106286676B CN 106286676 B CN106286676 B CN 106286676B CN 201510317795 A CN201510317795 A CN 201510317795A CN 106286676 B CN106286676 B CN 106286676B
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Abstract
The present invention provides a kind of damper, vehicle suspension and vehicle, the damper includes oil storage cylinder, the working cylinder being arranged on inside the oil storage cylinder, piston rod, it is arranged in the working cylinder and is sleeved on the piston component of the lower end of the piston rod, the cylinder bottom seat being tightly connected with the oil storage cylinder and the bottom valve assembly being arranged on the cylinder bottom seat, the working cylinder is divided into epicoele and cavity of resorption by the piston component, the bottom valve assembly is arranged in the cavity of resorption, the piston rod is provided with the liquid flow hole for connecting the epicoele and cavity of resorption, the lower ending opening of the liquid flow hole opens wide, the upper end opening of the liquid flow hole is covered by a card-type valve block.Damper according to the present invention can take into account the handling and riding comfort of vehicle.
Description
Technical field
The invention belongs to vehicle suspension system technical field, more particularly to a kind of damper, vehicle suspension and vehicle.
Background technology
Damper is component important in vehicle suspension system, plays buffering road shocks, attenuation suspension and vehicle body vibrations
Effect, directly affect the handling and comfort of vehicle.The performance of damper can pass through F-V curves (damping force-speed
Curve) specifically quantify.
The structure that existing damper uses is substantially dual-tube shock absorber.As shown in Figure 1, for a kind of existing bitubular vibration damping
Device, in the dual-tube shock absorber, the damping force in compression travel mainly realizes (bottom valve by a bottom valve assembly 1a in cylinder bottom portion
In compression travel generated F-V curves are close to the F-V curves of shock absorbers compression stroke), such structures shape bottom valve exists
The resistance that the piston 2a high speeds or low-speed motion (it has been generally acknowledged that piston movement speed is less than 0.1m/s by low speed) of damper are contributed
Buddhist nun's power reaches unanimity；That is, (dotted line and solid line respectively represent a kind of bottom valve of damper in compression travel in figure as shown in Figure 2
F-V curves), it can be seen that the damping force low speed of the bottom valve of the damper represented by solid line is big, at a high speed also it is big (i.e. high speed when
Damping force is not gentle), the damping force low speed of the bottom valve of the damper represented by dotted line is small, at a high speed also it is small (i.e. high speed when damping
Power tends towards stability).The big high speed of damping force low speed of damper also big vehicle, handling is good, but riding comfort is poor；
The small high speed of damping force low speed of damper also small vehicle, riding comfort is good, but handling is poor.
As it can be seen that existing damper, the handling and riding comfort of vehicle are not taken into account well.
Invention content
The technical problems to be solved by the invention are not take into account the handling of vehicle well for existing damper
The defects of energy and riding comfort, provide a kind of damper.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
A kind of damper is provided, including oil storage cylinder, the working cylinder being arranged on inside the oil storage cylinder, piston rod, is arranged on
In the working cylinder and be sleeved on the piston rod lower end piston component, with the oil storage cylinder be tightly connected cylinder bottom seat and
The working cylinder is divided into epicoele and cavity of resorption, the bottom valve by the bottom valve assembly being arranged on the cylinder bottom seat, the piston component
Component is arranged in the cavity of resorption, and the piston rod is provided with the liquid flow hole for connecting the epicoele and cavity of resorption, the liquid flow hole
Lower ending opening opens wide, and the upper end opening of the liquid flow hole is covered by a card-type valve block.
Further, the piston component include from top to bottom be sequentially overlapped first piston valve block, second piston valve block,
Main piston, third piston valve, auxiliary piston, the 4th piston valve and the 5th piston valve, the second piston valve block it is outer
Edge has the second side notch, and the middle part of the third piston valve and marginal position offer liquid flow hole in the middle part of third respectively
And third side notch, the outer edge of the 4th piston valve offer the 4th side notch, the first piston valve block, auxiliary are lived
Plug, the 5th piston valve cover the second side notch, third side notch and the 4th side notch, the auxiliary piston setting respectively
There is auxiliary liquid flow hole, the main piston is provided with first piston liquid flow hole and second piston liquid flow hole, and the epicoele, the second side lack
Mouthful, first piston liquid flow hole and cavity of resorption be sequentially communicated to form the first circulation path, the epicoele, second piston liquid flow hole, the
Three side notches and cavity of resorption are sequentially communicated to form the second circulation path, the epicoele, second piston liquid flow hole, third middle part liquid stream
Hole, auxiliary liquid flow hole, the 4th side notch and cavity of resorption are sequentially communicated to form third circulation path.
Further, the crown center position of the main piston is provided with cyclic annular raised line, and the second piston valve block covers
On the cyclic annular raised line, to form upper lumen, the top between the second piston valve block and the main piston
Inner cavity is connected between the second side notch and the first piston liquid flow hole.
Further, the position that the bottom of the main piston is located above the third piston valve is recessed inwards, with
Lower lumen, the lower lumen and the second piston liquid stream are formed between the main piston and the third piston valve
Liquid flow hole and the connection of third side notch in the middle part of hole, third.
Further, the piston rod includes upper bar, intermediate bar and the end bar that diameter is sequentially reduced, the upper bar
The first table top is formed with the connecting portion of intermediate bar, connecting portion the second table top of formation of the intermediate bar and end bar is described
The lower end of card-type valve block is provided with tubular base, and the tubular base is socketed on the intermediate bar and end face and described the thereon
One table top abuts, and is formed with card slot in the upper bar, the upper end opening of the liquid flow hole is opened in the bottom of card slot, the card
Type valve block is placed in the card slot.
Further, the piston component further includes first piston gasket and second piston gasket, the first piston pad
The upper surface of piece is abutted with the lower face of the tubular base and the second table top, and the second piston gasket is folded in described first
Between piston pad and first piston valve block, and the outer diameter of the second piston gasket is less than the first piston valve block and first
The outer diameter of piston pad.
Further, the piston component further includes the 6th piston valve, the third piston pad being from top to bottom sequentially overlapped
Piece, the 4th piston pad and locking nut, the 6th piston valve are folded in the 5th piston valve and third piston pad
Between piece, the outer diameter of the third piston pad is less than the 6th piston valve and the outer diameter of the 4th piston pad, the lock
Tight nut and the external screw thread thread fitting being formed on the end bar, and it is pressed on the lower surface of the 4th piston pad.
Further, the bottom valve assembly includes from top to bottom being sequentially overlapped bottom valve valve block, recuperation valve on a screw rod
Piece, valve body, shut off valve block and high speed valve block, offers liquid via in the middle part of the bottom valve valve block, in the compensator valve plate
Portion and marginal position offer compensation hole and compensation notch respectively, and the liquid via is connected with the compensation hole, the valve body
Including being formed in the outer ring flange of marginal position and being formed in the interior ring flange of medium position, the compensator valve plate is covered described
It is described to form exocoel and inner cavity between the compensator valve plate and the valve body on outer ring flange and the interior ring flange
Compensation hole is connected with the inner cavity, and the compensation notch connection is corresponding on the valve body between the epicoele and the exocoel
Inner valve body opening and external valve body hole, the edge of the valve block that shuts off are offered respectively in the inner cavity and the position of the exocoel
Position offers the notch that shuts off, described to shut off notch connection between the oil storage cylinder and the inner valve body opening, the outside
Valve body hole is directly connected with the oil storage cylinder, and the valve body is tightly connected with the working cylinder.
Damper according to the present invention, piston rod are provided with the epicoele of connection working chamber and the liquid flow hole of cavity of resorption, also, liquid
The lower ending opening of discharge orifice opens wide, and upper end opening is covered by a card-type valve block, in this way, (speed is more than when compressing high speed compression
0.1m/s), a part of damping oil enters epicoele by way of conventional from cavity of resorption, and another part damping oil passes through piston by cavity of resorption
Liquid flow hole in bar pushes card-type valve block open and enters epicoele, some damping oil flows out to storage by bottom valve assembly by cavity of resorption
In oil cylinder, can slow down in this way high speed piston compression when damping force so that high speed piston compress when (road surface fluctuating quantity compared with
There is greatly) gentle damping force, gentle damping force during high speed compression is then conducive to riding comfort, thus, above-mentioned vibration damping
Device can take into account the handling and riding comfort of vehicle.
In addition, the present invention also provides a kind of vehicle suspension, including above-mentioned damper.
In addition, the present invention also provides a kind of vehicle, including above-mentioned damper.
Description of the drawings
Fig. 1 is a kind of structure diagram of existing damper；
Fig. 2 is the F-V curves of its two kinds of forms of the damper of structure shown in Fig. 1；
Fig. 3 be one embodiment of the invention provide its piston rod of damper and piston component exploded view (；
Fig. 4 is the flow graph for the damper low speed compression process damping oil that one embodiment of the invention provides；
Fig. 5 is the flow graph for the damper high speed compression process damping oil that one embodiment of the invention provides；
Fig. 6 is the shock absorbers compression process F-V curves and existing shock absorbers compression process that one embodiment of the invention provides
The comparison diagram of F-V curves；
Fig. 7 is the flow graph for the damper drawing process damping oil that one embodiment of the invention provides；
Fig. 8 is the damper drawing process F-V curves and existing damper drawing process that one embodiment of the invention provides
The comparison diagram of F-V curves；
Fig. 9 is the structure diagram of the valve body for damper its bottom valve assembly that one embodiment of the invention provides；
Figure 10 is the exploded view of its bottom valve assembly of the damper of one embodiment of the invention offer.
Reference numeral in Figure of description is as follows：
1st, oil storage cylinder；2nd, working cylinder；21st, epicoele；22nd, cavity of resorption；3rd, piston rod；31st, liquid flow hole；311st, lower ending opening；
312nd, upper end opening；32nd, upper bar；321st, card slot；33rd, intermediate bar；34th, end bar；35th, the first table top；36th, the second table top；
4th, piston component；41st, first piston valve block；42nd, second piston valve block；421st, the second side notch；43rd, main piston；431st, first
Piston liquid flow hole；432nd, second piston liquid flow hole；433rd, cyclic annular raised line；44th, third piston valve；441st, liquid stream in the middle part of third
Hole；442nd, third side notch；45th, auxiliary piston；451st, liquid flow hole is assisted；46th, the 4th piston valve；461st, the 4th side notch；
47th, the 5th piston valve；48th, first piston gasket；49th, second piston gasket；401st, the 6th piston valve；402nd, third piston
Gasket；403rd, the 4th piston pad；404th, locking nut；5th, cylinder bottom seat；6th, card-type valve block；7th, bottom valve assembly；71st, bottom valve
Piece；711st, liquid via；72nd, compensator valve plate；721st, hole is compensated；722nd, notch is compensated；73rd, valve body；731st, outer ring flange；732、
Interior ring flange；733rd, inner valve body opening；734th, external valve body hole；74th, shut off valve block；741st, shut off notch；75th, high speed valve block；
76th, screw rod；77th, nut；78th, the first bottom valve gasket；79th, the second bottom valve gasket；8th, upper lumen；9th, lower lumen；10th, tubulose
Pedestal；101st, exocoel；102nd, inner cavity.
Specific embodiment
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figures 3 to 10, the damper that one embodiment of the invention provides, including oil storage cylinder 1, is arranged on the store oil
The piston group of working cylinder 2, piston rod 3, the lower end for being arranged in the working cylinder 2 and being sleeved on the piston rod 3 inside cylinder 1
Part 4, the cylinder bottom seat 5 being tightly connected with the oil storage cylinder 1 and the bottom valve assembly 7 being arranged on the cylinder bottom seat 5, the piston group
The working cylinder is divided into epicoele 21 and cavity of resorption 22 by part 4, and the bottom valve assembly 7 is arranged in the cavity of resorption 22, the piston rod 3
The liquid flow hole 31 for connecting the epicoele 21 and cavity of resorption 22 is provided with, the lower ending opening 311 of the liquid flow hole 31 opens wide, the liquid stream
The upper end opening 312 in hole 31 is covered by a card-type valve block 6.The upper end opening 312 of liquid flow hole 31 can be multiple, card-type valve block 6
Quantity correspond to liquid flow hole 31 upper end opening 312 quantity.
In the present embodiment, as shown in figure 4, the cylinder bottom seat 5 is welded on the bottom of the oil storage cylinder 1, to realize the cylinder
Pedestal 5 is tightly connected with the oil storage cylinder 1.
In the present embodiment, as shown in figure 3, the piston component 4 includes the first piston valve block being from top to bottom sequentially overlapped
41st, second piston valve block 42, main piston 43, third piston valve 44, auxiliary piston 45, the 4th piston valve 46 and the 5th piston
Valve block 47, the outer edge of the second piston valve block 42 offer the second side notch 421, the middle part of the third piston valve 44
And marginal position offers liquid flow hole 441 and third side notch 442, the outside of the 4th piston valve 46 in the middle part of third respectively
Edge offers the 4th side notch 461, and the first piston valve block 41, auxiliary piston 45, the 5th piston valve 47 cover institute respectively
The second side notch 421, third side notch 442 and the 4th side notch 461 are stated, the auxiliary piston 45 is provided with auxiliary liquid flow hole
451, the main piston 43 is provided with first piston liquid flow hole 431 and second piston liquid flow hole 432, the epicoele 21, the second side
Notch 421, first piston liquid flow hole 431 and cavity of resorption 22 are sequentially communicated to form the first circulation path (i.e. A arrows institute in Fig. 4
In path), the epicoele 21, second piston liquid flow hole 432, third side notch 442 and cavity of resorption 22 are sequentially communicated to form second
Circulation path (i.e. path where DG arrows in Fig. 7), the epicoele 21, second piston liquid flow hole 432, third middle part liquid flow hole
441st, liquid flow hole 451, the 4th side notch 461 and cavity of resorption 22 is assisted to be sequentially communicated to form third circulation path (i.e. DF in Fig. 8
Path where arrow).
First piston liquid flow hole 431 and second piston liquid flow hole 432 are disjoint (will not communicate), thus in Fig. 3,
Second piston liquid flow hole 432 is shown in broken lines.
In the present embodiment, as shown in Figures 3 and 4, the crown center position of the main piston 43 is provided with cyclic annular raised line
433, the second piston valve block 42 is covered on the cyclic annular raised line 433, with the second piston valve block 42 with it is described
Upper lumen 8 is formed between main piston 43, the upper lumen 8 is connected in the second side notch 421 and the first piston
Between liquid flow hole 431.That is, upper lumen 8 is located on the first circulation path.
In the present embodiment, as shown in Figures 3 and 4, the bottom of the main piston 43 is located on the third piston valve 44
The position of side is recessed inwards, to form lower lumen 9 between the main piston 43 and the third piston valve 44, under described
Portion inner cavity 9 is connected with liquid flow hole 441 in the middle part of the second piston liquid flow hole 432, third and third side notch 442.That is, in lower part
Chamber 9 is located on the second circulation path and third circulation path.
In the present embodiment, as shown in Figures 3 and 4, the piston rod 3 includes upper bar 32, the centre that diameter is sequentially reduced
Bar 33 and end bar 34, the connecting portion of the upper bar 32 and intermediate bar 44 form the first table top 35, the intermediate bar 33 with
The connecting portion of end bar 34 forms the second table top 36, and the lower end of the card-type valve block 6 is provided with tubular base 10, the tubulose
Pedestal 10 is socketed on the intermediate bar 33 and end face is abutted with first table top 35 thereon, is formed in the upper bar 32
Card slot 321, the upper end opening 311 of the liquid flow hole 31 are opened in the bottom of card slot 321, and the card-type valve block 6 is placed in the card
In slot 321.In this way, card-type valve block 6 and the sidewall spacers of card slot 321 coordinate, card slot 321 can play the deformation of card-type valve block 6
To guiding role.
In the present embodiment, as shown in Figures 3 and 4, the piston component 4 further includes first piston gasket 48 and second piston
Gasket 49, the upper surface of the first piston gasket 48 are abutted with the lower face of the tubular base 10 and the second table top 36, institute
It states second piston gasket 49 to be folded between the first piston gasket 48 and first piston valve block 41, and the second piston pad
The outer diameter of piece 49 is less than the outer diameter of the first piston valve block 41 and first piston gasket 48.In this way, first piston valve block 41 and
The space of the deformation of first piston valve block 41 is capable of providing between first piston gasket 48.
In the present embodiment, as shown in Figures 3 and 4, the piston component 4 further includes the 6th be from top to bottom sequentially overlapped and lives
Plug valve piece 401, third piston pad 402, the 4th piston pad 403 and locking nut 404, the 6th piston valve 401 press from both sides
It is located between the 5th piston valve 47 and third piston pad 402, the outer diameter of the third piston pad 402 is less than described
The outer diameter of 6th piston valve 401 and the 4th piston pad 403, the locking nut 404 is with being formed on the end bar 34
External screw thread thread fitting, and be pressed on the lower surface of the 4th piston pad 403.In this way, the 6th piston valve 401 and
The space of the deformation of first piston valve block 41 is capable of providing between four piston pads 403.
In the present embodiment, as shown in FIG. 9 and 10, the bottom valve assembly 7 includes from top to bottom being sequentially overlapped in a screw rod
Bottom valve valve block 71, compensator valve plate 72, valve body 73 on 76, shut off valve block 74 and high speed valve block 75, in the bottom valve valve block 71
Portion offers liquid via 711, and the middle part of the compensator valve plate 72 and marginal position offer compensation hole 721 respectively and compensation lacks
Mouth 722, the liquid via 711 are connected with the compensation hole 721, and the valve body 73 includes being formed in the outer ring convex of marginal position
Edge 731 and the interior ring flange 732 for being formed in medium position, the compensator valve plate 72 are covered in the outer ring flange 731 and described
On interior ring flange 732, to form exocoel 101 and inner cavity 102, the benefit between the compensator valve plate 72 and the valve body 73
It repays hole 721 to connect with the inner cavity 102, the compensation notch 722 is connected between the epicoele 21 and the exocoel 101, institute
It states and offers inner valve body opening 733 and external valve respectively corresponding to the position of the inner cavity 102 and the exocoel 101 on valve body 73
Body opening 734, the marginal position for shutting off valve block 74 offer the notch 741 that shuts off, and the notch 741 that shuts off is connected in the storage
Between oil cylinder 1 and the inner valve body opening 733, the external valve body hole 734 is directly connected with the oil storage cylinder 1, the valve body
73 are tightly connected with the working cylinder 2, and the top of the screw rod 76 is threadedly coupled a nut 77, nut 77 and bottom valve valve block 71 it
Between be provided with the first bottom valve gasket 78, nut 77 is pressed on the first bottom valve gasket 78；The head of screw rod 76 and high speed valve block 75
Between be provided with the second bottom valve gasket 79.
In the present embodiment, the quantity of high speed valve block 75 can be one or more pieces according to different needs.In Fig. 9 and Figure 10
In shown embodiment, high speed valve block 75 is two panels.In low speed compression travel, high speed valve block 75 covers the valve block that shuts off in an axial direction
74 notch 741 that shuts off (side for the notch 741 that shuts off is unlimited), at this point, damping oil is flowed into from the side for the notch 741 that shuts off
Oil storage cylinder 1；In high speed compression stroke, the side for the notch 741 that shuts off cannot flow out such a large amount of damping oil, thus damping oil
The edge of high speed valve block 75 can be caused to bend, so that more damping oils rapidly flow into oil storage cylinder 1.
Certainly, in other embodiments, bottom valve assembly 7 can also be other conventionally forms disclosed in the prior art,
It is not where the innovation of the present invention, is no longer described in detail.
Referring to Fig. 3, Fig. 4, Fig. 6, Fig. 9 and Figure 10, damper low speed compression work process of the present invention is as follows：
When damper is to be less than or equal to the speed compression of 0.1m/s, 22 a part of damping oil of cavity of resorption passes through on main piston 43
First piston liquid flow hole 431, upper lumen 8 and second piston valve block the second side notch 421, and flow into epicoele 21 (under i.e.
22 a part of damping oil of chamber indicates that path flows into epicoele 21 by A arrows in figure), cavity of resorption another part damping oil passes through bottom valve
The liquid via 711 of piece, inner cavity 102, the inner valve body opening 733 of valve body and the valve block that shuts off the notch 741 that shuts off flow into oil storage cylinder 1
(i.e. 22 another part damping oil of cavity of resorption indicates that path flows into oil storage cylinder 1 by B arrows in figure), the F-V curves which forms
For the ab line segments in Fig. 6.
Referring to Fig. 3, Fig. 5, Fig. 6, Fig. 9 and Figure 10, the damper high speed compression course of work of the present invention is as follows：
When damper is to be more than the speed compression of 0.1m/s, 22 a part of damping oil of cavity of resorption passes through first on main piston 43
The second side notch 421 of piston liquid flow hole 431, upper lumen 8 and second piston valve block, and squeeze second piston valve block 42 and
(i.e. 22 a part of damping oil of cavity of resorption passes through A arrows instruction road in figure to inflow epicoele 21 after one piston valve 41 makes its deflection deformation
Diameter flows into epicoele 21), a part of damping oil flows into epicoele 21 by the liquid flow hole 31 of piston rod after pushing card-type valve block 6 open at this time
(i.e. 22 a part of damping oil of cavity of resorption indicates that path flows into epicoele 21 by C arrows in figure), to reduce damping force, another portion of cavity of resorption
Damping oil is divided to pass through the liquid via 711 of bottom valve valve block, inner cavity 102, the inner valve body opening 733 of valve body and shutting off for the valve block that shuts off
Notch 741, and squeeze high speed valve block 75 and make to flow into oil storage cylinder 1 after its deflection deformation that (i.e. 22 another part damping oil of cavity of resorption passes through
B arrows instruction path flows into oil storage cylinder 1 in figure), the F-V curves which forms are the bc line segments in Fig. 6.Referring to Fig. 6, therewith
Comparison, traditional damper, the F-V curves that high speed compression process is formed are the bd line segments in Fig. 6, as seen from the figure bc line segments compared with
Bd line segments are gently many, i.e. the damper of the present embodiment damping force in high speed compression is more gentle, and vehicle comfort is higher.
Referring to Fig. 3, Fig. 7, Fig. 8 to Figure 10, the damper low-speed tensile course of work of the present invention is as follows：
When damper is to be less than or equal to the speed tensile of 0.1m/s, 21 a part of damping oil of epicoele pass through main piston
The third side notch 442 of two piston liquid flow holes 432, lower lumen 9 and third piston valve flows into (the i.e. epicoele 21 1 of cavity of resorption 22
Damping oil is divided to pass through DG arrows in figure and indicates that path flows into cavity of resorption 22), the second piston liquid that a part of damping oil passes through main piston
Discharge orifice 432, lower lumen 9, liquid flow hole 441 in the middle part of the third of third piston valve, the auxiliary liquid flow hole 451 of auxiliary piston and the
4th side notch 461 of four piston valves, flowing into cavity of resorption 22, (i.e. 21 a part of damping oil of epicoele indicates road by DF arrows in figure
Diameter flows into cavity of resorption 22), in addition, a part of damping oil passes through external valve body hole 734, exocoel 101 and compensation notch in oil storage cylinder 1
722 flow into cavity of resorption 22 (i.e. 22 a part of damping oil of cavity of resorption indicates that path flows into oil storage cylinder 1 by E arrows in figure), the process shape
Into F-V curves be the AB line segments in Fig. 8.
Referring to Fig. 3, Fig. 7, Fig. 8 to Figure 10, the damper high-speed stretch course of work of the present invention is as follows：
When damper is to be more than the speed tensile of 0.1m/s, second piston that 21 a part of damping oil of epicoele passes through main piston
The third side notch 442 of liquid flow hole 432, lower lumen 9 and third piston valve flows into (the i.e. 21 a part of damping of epicoele of cavity of resorption 22
Oil indicates that path flows into cavity of resorption 22 by DG arrows in figure), the second piston liquid flow hole that a part of damping oil passes through main piston
432nd, the work of auxiliary liquid flow hole 451 and the 4th of lower lumen 9, the third of third piston valve middle part liquid flow hole 441, auxiliary piston
Then 4th side notch 461 of plug valve piece squeezes the 4th piston valve 46, the 5th piston valve 47 and the 6th piston valve 401
Cavity of resorption 22 (i.e. 21 a part of damping oil of epicoele indicates that path flows into cavity of resorption 22 by DF arrows in figure) is flowed into afterwards, in addition, store oil
A part of damping oil squeezes compensator valve plate 72 and bottom valve by external valve body hole 734, exocoel 101 and compensation notch 722 in cylinder 1
Cavity of resorption 22 (i.e. 22 a part of damping oil of cavity of resorption indicates that path flows into oil storage cylinder 1 by E arrows in figure), the mistake are flowed into after valve block 71
The F-V curves that journey is formed are the BC line segments in Fig. 8.Referring to Fig. 8, in contrast, traditional damper, high-speed stretch process shape
Into F-V curves be the BD line segments in Fig. 8, BC line segments are gently many compared with BD line segments as seen from the figure, i.e. the damper of the present embodiment
In high-speed stretch, damping force is more gentle, and vehicle comfort is higher.
Damper according to the above embodiment of the present invention, piston rod are provided with the epicoele of connection working chamber and the liquid stream of cavity of resorption
Hole, also, the lower ending opening of liquid flow hole opens wide, and upper end opening is covered by a card-type valve block, in this way, when compressing high speed compression
(speed is more than 0.1m/s), a part of damping oil enters epicoele by way of conventional from cavity of resorption, and another part damping oil is under
Chamber pushes card-type valve block open and enters epicoele, some damping oil is by bottom valve assembly under by the liquid flow hole in piston rod
Chamber is flowed out in oil storage cylinder, can slow down damping force during high speed piston compression in this way so that (road surface when high speed piston compresses
Fluctuating quantity is larger) there is gentle damping force, gentle damping force during high speed compression is then conducive to riding comfort；In addition,
Piston component has main piston and auxiliary piston, and when high speed piston stretches, a part of damping oil of epicoele is from third side indentation, there
Cavity of resorption is flowed directly into, a part of damping oil then flows into cavity of resorption via the auxiliary recirculation hole of auxiliary piston from the 4th side indentation, there,
Another part damping oil squeezes the 4th valve block, the 5th valve block and the 6th valve block deflection deformation are flowed into cavity of resorption, one in oil storage cylinder
Damping oil is divided to flow into cavity of resorption by bottom valve assembly so that also there is gentle damping force when high speed piston stretches.Thus, it is above-mentioned
Damper can obtain gentle damping force, above-mentioned damper can take into account the behaviour of vehicle when high speed compression is with stretching
Control performance and riding comfort.
In addition, one embodiment of the invention additionally provides a kind of vehicle suspension, including above-mentioned damper.
In addition, one embodiment of the invention additionally provides a kind of vehicle, including above-mentioned damper.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of damper including oil storage cylinder, the working cylinder being arranged on inside the oil storage cylinder, piston rod, is arranged on the work
It the piston component for making in cylinder and being sleeved on the lower end of the piston rod, the cylinder bottom seat being tightly connected with the oil storage cylinder and is arranged on
The working cylinder is divided into epicoele and cavity of resorption by the bottom valve assembly on the cylinder bottom seat, the piston component, and the bottom valve assembly is set
It puts in the cavity of resorption, which is characterized in that the piston rod is provided with the liquid flow hole for connecting the epicoele and cavity of resorption, the liquid stream
The lower ending opening in hole opens wide, and the upper end opening of the liquid flow hole is covered by a card-type valve block, and the card-type valve block is only in damper
It is pushed open during high speed compression by the damping oil of cavity of resorption, to open the upper end opening of the liquid flow hole.
2. damper according to claim 1, which is characterized in that the piston component includes what is be from top to bottom sequentially overlapped
First piston valve block, second piston valve block, main piston, third piston valve, auxiliary piston, the 4th piston valve and the 5th piston
Valve block, the outer edge of the second piston valve block offer the second side notch, the middle part of the third piston valve and margin location
It puts and offers liquid flow hole and third side notch, the outer edge of the 4th piston valve in the middle part of third respectively and offer the 4th side and lack
Mouthful, the first piston valve block, auxiliary piston, the 5th piston valve cover respectively the second side notch, third side notch and
4th side notch, the auxiliary piston are provided with auxiliary liquid flow hole, and the main piston is provided with first piston liquid flow hole and second
Piston liquid flow hole, the epicoele, the second side notch, first piston liquid flow hole and cavity of resorption are sequentially communicated to form the first logical circulation road
Diameter, the epicoele, second piston liquid flow hole, third side notch and cavity of resorption are sequentially communicated to form the second circulation path, it is described on
Chamber, second piston liquid flow hole, liquid flow hole, auxiliary liquid flow hole, the 4th side notch and cavity of resorption are sequentially communicated to form the in the middle part of third
Three circulation paths.
3. damper according to claim 2, which is characterized in that the crown center position of the main piston is provided with ring-type
Raised line, the second piston valve block is covered on the cyclic annular raised line, in the second piston valve block and the main piston
Between form upper lumen, the upper lumen connection is between the second side notch and the first piston liquid flow hole.
4. damper according to claim 2, which is characterized in that the bottom of the main piston is located at the third piston valve
Position above piece is recessed inwards, to form lower lumen between the main piston and the third piston valve, under described
Portion inner cavity is connected with liquid flow hole in the middle part of the second piston liquid flow hole, third and third side notch.
5. damper according to claim 2, which is characterized in that the piston rod includes the top that diameter is sequentially reduced
The connecting portion of bar, intermediate bar and end bar, the upper bar and intermediate bar forms the first table top, the intermediate bar and end bar
Connecting portion form the second table top, the lower end of the card-type valve block is provided with tubular base, and the tubular base is socketed in institute
State on intermediate bar and end face abutted with first table top thereon, be formed with card slot in the upper bar, the liquid flow hole it is upper
End opening is opened in the bottom of card slot, and the card-type valve block is placed in the card slot.
6. damper according to claim 5, which is characterized in that the piston component further includes first piston gasket and
Two piston pads, the upper surface of the first piston gasket is abutted with the lower face of the tubular base and the second table top, described
Second piston gasket is folded between the first piston gasket and first piston valve block, and the outer diameter of the second piston gasket
Less than the first piston valve block and the outer diameter of first piston gasket.
7. damper according to claim 5 or 6, which is characterized in that the piston component further includes from top to bottom successively
The 6th piston valve, third piston pad, the 4th piston pad and the locking nut of superposition, the 6th piston valve are folded in
Between 5th piston valve and third piston pad, the outer diameter of the third piston pad is less than the 6th piston valve
And the 4th piston pad outer diameter, the locking nut and the external screw thread thread fitting being formed on the end bar, and press
In the lower surface of the 4th piston pad.
8. damper according to claim 1, which is characterized in that the bottom valve assembly includes from top to bottom being sequentially overlapped
Bottom valve valve block, compensator valve plate, valve body on one screw rod, shut off valve block and high speed valve block, is offered in the middle part of the bottom valve valve block
Liquid via, the middle part of the compensator valve plate and marginal position offer compensation hole and compensation notch, the liquid via respectively
It is connected with the compensation hole, the valve body includes being formed in the outer ring flange of marginal position and is formed in the interior ring convex of medium position
Edge, the compensator valve plate is covered on the outer ring flange and the interior ring flange, in the compensator valve plate and the valve
Exocoel and inner cavity are formed between body, the compensation hole is connected with the inner cavity, and the compensation notch connection is in the epicoele and institute
Correspond to the inner cavity and the position of the exocoel between stating exocoel, on the valve body and offer inner valve body opening and outside respectively
Valve body hole, the marginal position of the valve block that shuts off offer the notch that shuts off, and the notch connection of shutting off is in the oil storage cylinder and institute
Between stating inner valve body opening, the external valve body hole is directly connected with the oil storage cylinder, and the valve body is sealed with the working cylinder
Connection.
9. a kind of vehicle suspension, which is characterized in that including the damper described in claim 1-8 any one.
10. a kind of vehicle, which is characterized in that including the damper described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317795.3A CN106286676B (en) | 2015-06-10 | 2015-06-10 | Damper, vehicle suspension and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317795.3A CN106286676B (en) | 2015-06-10 | 2015-06-10 | Damper, vehicle suspension and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286676A CN106286676A (en) | 2017-01-04 |
| CN106286676B true CN106286676B (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510317795.3A Active CN106286676B (en) | 2015-06-10 | 2015-06-10 | Damper, vehicle suspension and vehicle |
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| Country | Link |
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| CN200952547Y (en) * | 2006-08-15 | 2007-09-26 | 北京柯布克科技开发有限公司 | Adjustable resistance shock-absorber |
| EP1906046A1 (en) * | 2006-09-28 | 2008-04-02 | Kayaba Industry Co., Ltd. | Base valve mechanism for shock absorber |
| CN203656028U (en) * | 2014-01-07 | 2014-06-18 | 吉林大学 | Throttling-port damping adjustable damper |
| CN204041830U (en) * | 2014-07-01 | 2014-12-24 | 广州汽车集团股份有限公司 | Vibration damper, vehicle suspension and vehicle |
| CN104455160A (en) * | 2013-09-22 | 2015-03-25 | 长春孔辉汽车科技有限公司 | Amplitude-dependent damper |
| CN204784388U (en) * | 2015-06-10 | 2015-11-18 | 广州汽车集团股份有限公司 | Shock absorber, vehicle suspension and vehicle |
-
2015
- 2015-06-10 CN CN201510317795.3A patent/CN106286676B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952547Y (en) * | 2006-08-15 | 2007-09-26 | 北京柯布克科技开发有限公司 | Adjustable resistance shock-absorber |
| EP1906046A1 (en) * | 2006-09-28 | 2008-04-02 | Kayaba Industry Co., Ltd. | Base valve mechanism for shock absorber |
| CN104455160A (en) * | 2013-09-22 | 2015-03-25 | 长春孔辉汽车科技有限公司 | Amplitude-dependent damper |
| CN203656028U (en) * | 2014-01-07 | 2014-06-18 | 吉林大学 | Throttling-port damping adjustable damper |
| CN204041830U (en) * | 2014-07-01 | 2014-12-24 | 广州汽车集团股份有限公司 | Vibration damper, vehicle suspension and vehicle |
| CN204784388U (en) * | 2015-06-10 | 2015-11-18 | 广州汽车集团股份有限公司 | Shock absorber, vehicle suspension and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106286676A (en) | 2017-01-04 |
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