CN103742584B - Communication type vehicle hydro pneumatic suspension orifice valve - Google Patents
Communication type vehicle hydro pneumatic suspension orifice valve Download PDFInfo
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- CN103742584B CN103742584B CN201410039147.1A CN201410039147A CN103742584B CN 103742584 B CN103742584 B CN 103742584B CN 201410039147 A CN201410039147 A CN 201410039147A CN 103742584 B CN103742584 B CN 103742584B
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- Prior art keywords
- mounting rod
- floating piston
- fixed block
- limit assembly
- spring
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- 239000000725 suspension Substances 0.000 title claims abstract description 60
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000004891 communication Methods 0.000 title claims abstract description 16
- 238000007667 floating Methods 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000012530 fluid Substances 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000013016 damping Methods 0.000 description 4
- 238000011067 equilibration Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention gives a kind of communication type vehicle hydro pneumatic suspension orifice valve, it comprises valve body, mounting rod, floating piston, left limit assembly, right limit assembly, left fixed block and right fixed block, valve body internal fixtion is placed with mounting rod, mounting rod is equipped with floating piston, valve body is separated into left chamber and right chamber by floating piston, left chamber sidewall has left oil cylinder interface, right chamber sidewall has right oil cylinder interface, mounting rod is fixedly connected with left fixed block, left limit assembly is placed with between floating piston and left fixed block, mounting rod is fixedly connected with right fixed block, right limit assembly is placed with between floating piston and right fixed block, the inwall of valve body has at least one liquid chunnel.The suspension system that this communication type vehicle hydro pneumatic suspension orifice valve is arranged on vehicle is outside, and its thermal diffusivity is good, and structure is simple, therefore reliability is high, cost is low, automatically can regulate the suspended state of vehicle, namely ensure that the smoothness of equalizing type of suspension, turn improve the roll angular rigidity of vehicle.
Description
Technical field
The present invention relates to a kind of damping member of automobile suspension system, particularly a kind of communication type vehicle hydro pneumatic suspension orifice valve.
Background technique
At present, domestic independent hydro pneumatic suspension is used for off-road vehicle and heavy special vehicle, in order to take into account the requirement of normal vehicle operation to left and right counterweight balance, is interconnected by oil circuit between the hydro-pneumatic spring in hydro pneumatic suspension, forms gas and oil equilibration suspension; Be communicated with hydro pneumatic suspension mode of communicating and have three kinds: homonymy is communicated with, left and right connected sum intersects and is communicated with, the gas and oil equilibration suspension of domestic use mostly is left and right and is communicated with, but this mode of communicating causes suspension roll angular rigidity to be reduced to for 1/4 when not being communicated with, when turning to, vehicle roll angle increases, and travelling comfort reduces greatly; In addition, for current hydro pneumatic suspension, because the oil cylinder piston area of hydro pneumatic suspension is larger, therefore, can be very large by the fluid flow of orifice valve, when orifice valve is built-in, bad road when travelling will run into heat dissipation problem, the too high meeting of oil liquid temperature causes viscosity to reduce, and can have influence on the performance of gas in accumulator, thus has influence on the external characteristics of hydro pneumatic suspension.
Publication No. is that the Chinese invention patent of CN101618669A discloses a kind of hydro pneumatic suspension, this invention increases by one or two two three-way electromagnetic valve between the accumulator and hydraulic jack of hydro pneumatic suspension, when oil circuit disconnects by solenoid valve, suspension is rigidity, and the roll angular rigidity of vehicle becomes large; But in vehicle travel process, if suspension becomes rigidity, then due to the excitation on road surface, wheel easily jumps out of ground, vehicle ground is deteriorated, and therefore, carry out by hard and soft switching the suspension that anti-side inclines, its ground connection property can greatly reduce; Define the flexible hydro pneumatic suspension switched with rigidity by 2/2-way electromagnetic valve, but above-mentioned hydro-pneumatic suspension system needs special displacement transducer and ECU in actual applications, this not only adds the cost of system, system reliability is not high yet.
Summary of the invention
Technical problem to be solved by this invention is to provide the communication type vehicle hydro pneumatic suspension orifice valve that a kind of structure is simple, stability is high, and this communication type vehicle hydro pneumatic suspension orifice valve can regulate the roll angular rigidity of vehicle automatically, and without the need to any automatical control system.
For solving the problems of the technologies described above, the invention provides a kind of communication type vehicle hydro pneumatic suspension orifice valve, it has the valve body of cavity in comprising, mounting rod, floating piston, left limit assembly, right limit assembly, left fixed block and right fixed block, valve body internal fixtion is placed with mounting rod, mounting rod is equipped with floating piston, cavity in valve body is separated into the left chamber and right chamber mutually closed by floating piston, left chamber sidewall has the left oil cylinder interface communicated with the external world, right chamber sidewall has the right oil cylinder interface communicated with the external world, mounting rod is fixedly connected with left fixed block in floating piston leftward position, left limit assembly is placed with between floating piston and left fixed block, mounting rod is fixedly connected with right fixed block in floating piston right positions, right limit assembly is placed with between floating piston and right fixed block, the inwall of valve body has the liquid chunnel at least one left chamber of connection and right chamber, the length of liquid chunnel is not more than the distance of floating piston movement locus on mounting rod,
Described left limit assembly at least comprises left spring, and described right limit assembly at least comprises right spring.
When adopting this structure, this communication type vehicle hydro pneumatic suspension orifice valve is arranged between the left oil cylinder of vehicle hydro pneumatic suspension and right oil cylinder, it is connected with left oil cylinder by left oil cylinder interface, is connected with right oil cylinder by right oil cylinder interface, and composition left and right is communicated with the confining liquid circulation flow path of hydro-pneumatic suspension system;
In vehicle travels, when left and right wheels displacement difference is larger, when floating piston moves to high order end left, now floating piston left side exceeds outside liquid chunnel region, fluid cannot circulate between left chamber and right chamber, the oil circuit be communicated with between hydro pneumatic suspension disconnects, and makes the hydro pneumatic suspension state of vehicle be independent hydro pneumatic suspension, and now roll angular rigidity becomes large; In like manner, when floating piston moves right to low order end, now floating piston right side exceeds outside liquid chunnel region, fluid cannot circulate between left chamber and right chamber, the oil circuit be before communicated with between hydro pneumatic suspension disconnects, make the hydro pneumatic suspension state of vehicle be independent hydro pneumatic suspension, roll angular rigidity becomes large;
When left and right wheels displacement difference is less, the fluid in the fluid in left chamber and right chamber, via liquid chunnel two-way flow, produces damping force when fluid flows through liquid chunnel, makes the hydro pneumatic suspension state of vehicle be gas and oil equilibration suspension;
The suspension system that this communication type vehicle hydro pneumatic suspension orifice valve is arranged on vehicle is outside, its thermal diffusivity is good, the external diameter of its control valve element is less, and structure is simple, and without the need to electronic control system, therefore reliability is high, cost is low, and this communication type vehicle hydro pneumatic suspension orifice valve can the automatic sensing left and right wheels shift differences of beating, and automatically can regulate the suspended state of vehicle according to difference size, namely ensure that the smoothness of equalizing type of suspension, turn improve the roll angular rigidity of vehicle.
Technology contents for a better understanding of the present invention, below by this communication type vehicle hydro pneumatic suspension orifice valve referred to as this orifice valve.
The left fixed block of this orifice valve comprises the left snap ring and left back-up ring that coordinate with mounting rod; Described right fixed block comprises the right snap ring and right back-up ring that coordinate with mounting rod; When adopting this structure, the more reasonable structure of left fixed block and right fixed block.
The left limit assembly of this orifice valve also comprises the left spring cover be enclosed within outside mounting rod and the left spring seat be enclosed within outside mounting rod, and left spring is placed between left spring cover and left spring seat; Described right limit assembly also comprises the right spring housing be enclosed within outside mounting rod and the right spring seat be enclosed within outside mounting rod, and right spring is placed between right spring housing and right spring seat; When adopting this structure, the more reasonable structure of left limit assembly and right limit assembly.
Piston ring is socketed with outside the floating piston of this orifice valve; When adopting this structure, can prevent floating piston from directly contacting with external damping valve body, ensure floating piston smooth movement, reduce surface friction drag.
The cross sectional area at the two end part, liquid chunnel left and right of this orifice valve diminishes gradually; After adopting this structure, when floating piston is near, two end part left to liquid chunnel, the liquid flow velocity in left chamber and right chamber can reduce gradually, plays the object of buffering.
The liquid chunnel of this orifice valve circumferentially distributes along the spin axis of mounting rod; When adopting this structure, be conducive to the flow of fluid in this orifice valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of this orifice valve embodiment.
Fig. 2 is the sectional view of this orifice valve embodiment valve body.
Fig. 3 is a kind of using state figure of this orifice valve embodiment.
Fig. 4 is another using state figure of this orifice valve embodiment.
Embodiment
As shown in Fig. 1 to 2
This orifice valve comprises valve body 1, mounting rod 2, floating piston 3, left limit assembly, right limit assembly, left fixed block and right fixed block.
Valve body 1 comprises the housing 1e of right-end openings and agrees with the cover plate 1f of housing 1e opening, seal ring 1g is placed with between housing 1e and cover plate 1f, between cover plate 1f and housing 1e, fixed placement has mounting rod 2, floating piston 3 mounting rod 2 is equipped with, floating piston 3 can move along the axial direction of mounting rod 2, cavity in valve body 1 is separated into the left chamber 1a and right chamber 1b that mutually close by floating piston 3, piston ring 3a is socketed with outside floating piston 3, left chamber 1a sidewall has the left oil cylinder interface 1c communicated with the external world, the position of left oil cylinder interface 1c is in the left side of floating piston 3 in maximum displacement place left, right chamber 1b sidewall has the right oil cylinder interface 1d communicated with the external world, the position of right oil cylinder interface 1d is in the right side of floating piston 3 in maximum displacement place to the right.
Mounting rod 2 is provided with left fixed block in floating piston 3 leftward position, left fixed block comprises the left snap ring 4a and left back-up ring 4b that coordinate with mounting rod 2, left limit assembly is placed with between floating piston 3 and left fixed block, left limit assembly comprises and is enclosed within left spring cover 5a outside mounting rod 2, is enclosed within left spring seat 5b outside mounting rod 2 and left spring 5c, cooperatively interact between left spring cover 5a and left spring seat 5b, and left spring 5c is arranged between left spring cover 5a and left spring seat 5b;
Make the left back-up ring 4b left side of left fixed block be resisted against on left snap ring 4a, the left spring cover 5a of left limit assembly coordinates with left back-up ring 4b, and the right side of left spring seat 5b is resisted against floating piston 3 left side under the effect of left spring 5c.
Mounting rod 2 is fixedly connected with right fixed block in floating piston 3 right positions, right fixed block comprises the right snap ring 6a and right back-up ring 6b that coordinate with mounting rod 2, right limit assembly is placed with between floating piston 3 and right fixed block, right limit assembly comprises and is enclosed within right spring housing 7a outside mounting rod 2, is enclosed within right spring seat 7b outside mounting rod 2 and right spring 7c, cooperatively interact between right spring housing 7a and right spring seat 7b, and right spring 7c is arranged between right spring housing 7a and right spring seat 7b;
Make the right back-up ring 6b right side of right fixed block be resisted against on right snap ring 6a, the right spring housing 7a of right limit assembly coordinates with right back-up ring 6b, and the left side of right spring seat 7b is resisted against floating piston 3 right side under the effect of right spring 7c.
Floating piston 3 movement locus on mounting rod 2 comprises: when the left side to left limit part is compressed to maximum compression displacement left by floating piston 3, the projection position of floating piston 3 left side on mounting rod 2; When the right is compressed to maximum compression displacement to right limit part to the right by floating piston 3, the projection position of floating piston 3 right side on mounting rod 2.
The inwall of valve body 1 has the liquid chunnel 8 that six are communicated with left chamber 1a and right chamber 1b, all liquid chunnels 8 circumferentially distribute along the spin axis of mounting rod 2, the cross sectional area at each liquid chunnel about 8 two end part diminishes gradually, the length of liquid chunnel 8 is greater than the length of floating piston 3 at mounting rod 2 axis projection, and the length of liquid chunnel 8 is not more than the distance of floating piston 3 movement locus on mounting rod 2.
During use, communication type vehicle hydro pneumatic suspension orifice valve is communicated with the left oil cylinder of hydro pneumatic suspension and right oil cylinder, it is connected with left oil cylinder by left oil cylinder interface 1c, is connected with right oil cylinder by right oil cylinder interface 1d, and composition left and right is communicated with the confining liquid circulation flow path of hydro-pneumatic suspension system.
In vehicle travels, Uneven road can cause the up-down vibration of left and right wheel, when left and right wheel displacements difference is less, fluid in fluid in left chamber 1a and right chamber 1b is via liquid chunnel 8 two-way flow, floating piston 3 in this orifice valve moves back and forth at mounting rod 2 axial direction because of hydrodynamic pressure, produces damping force, and making the hydro pneumatic suspension state of vehicle be gas and oil equilibration suspension when fluid flows through liquid chunnel 8, the left and right counterweight balance of vehicle, smoothness is good.
As shown in Figs. 3-4
When left and right wheel displacements difference is larger, when floating piston 3 moves to high order end left, now floating piston 3 left side exceeds outside liquid chunnel 8 region, fluid cannot circulate between left chamber 1a and right chamber 1b, the oil circuit be before communicated with between hydro pneumatic suspension disconnects, make the hydro pneumatic suspension state of vehicle be independent hydro pneumatic suspension, now roll angular rigidity becomes large; In like manner, when floating piston 3 moves right to low order end, now floating piston 3 right side exceeds outside liquid chunnel 8 region, fluid cannot circulate between left chamber 1a and right chamber 1b, the oil circuit be before communicated with between hydro pneumatic suspension disconnects, make the hydro pneumatic suspension state of vehicle be independent hydro pneumatic suspension, roll angular rigidity becomes large.
The suspension system that this communication type vehicle hydro pneumatic suspension orifice valve is arranged on vehicle is outside, its thermal diffusivity is good, the external diameter of its control valve element is less, and structure is simple, and without the need to electronic control system, therefore reliability is high, cost is low, and this communication type vehicle hydro pneumatic suspension orifice valve can the automatic sensing left and right wheels shift differences of beating, and automatically can regulate the suspension state of vehicle according to difference size, namely ensure that the smoothness of equalizing type of suspension, turn improve the roll angular rigidity of vehicle.
Above-described is only one embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, and these also should be considered as belonging to protection scope of the present invention.
Claims (1)
1. a communication type vehicle hydro pneumatic suspension orifice valve, it is characterized by: it has the valve body of cavity in comprising, mounting rod, floating piston, left limit assembly, right limit assembly, left fixed block and right fixed block, valve body internal fixtion is placed with mounting rod, mounting rod is equipped with floating piston, cavity in valve body is separated into the left chamber and right chamber mutually closed by floating piston, left chamber sidewall has the left oil cylinder interface communicated with the external world, right chamber sidewall has the right oil cylinder interface communicated with the external world, mounting rod is fixedly connected with left fixed block in floating piston leftward position, left limit assembly is placed with between floating piston and left fixed block, mounting rod is fixedly connected with right fixed block in floating piston right positions, right limit assembly is placed with between floating piston and right fixed block, the inwall of valve body has the liquid chunnel at least one left chamber of connection and right chamber, the length of liquid chunnel is not more than the distance of floating piston movement locus on mounting rod,
Described left limit assembly at least comprises left spring, and described right limit assembly at least comprises right spring;
Described left fixed block comprises the left snap ring and left back-up ring that coordinate with mounting rod; Described right fixed block comprises the right snap ring and right back-up ring that coordinate with mounting rod;
Described left limit assembly also comprises the left spring cover be enclosed within outside mounting rod and the left spring seat be enclosed within outside mounting rod, and left spring is placed between left spring cover and left spring seat; Described right limit assembly also comprises the right spring housing be enclosed within outside mounting rod and the right spring seat be enclosed within outside mounting rod, and right spring is placed between right spring housing and right spring seat;
Piston ring is socketed with outside described floating piston;
The cross sectional area at described two end part, liquid chunnel left and right diminishes gradually;
All liquid chunnels circumferentially distribute along the spin axis of mounting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039147.1A CN103742584B (en) | 2014-01-27 | 2014-01-27 | Communication type vehicle hydro pneumatic suspension orifice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039147.1A CN103742584B (en) | 2014-01-27 | 2014-01-27 | Communication type vehicle hydro pneumatic suspension orifice valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742584A CN103742584A (en) | 2014-04-23 |
| CN103742584B true CN103742584B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410039147.1A Expired - Fee Related CN103742584B (en) | 2014-01-27 | 2014-01-27 | Communication type vehicle hydro pneumatic suspension orifice valve |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107035804B (en) * | 2017-06-08 | 2023-08-04 | 高碑店市龙程汽车制造有限公司 | Vehicle damping device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR728631A (en) * | 1931-12-19 | 1932-07-08 | Suspension compensating stabilizer of motor cars or other vehicles | |
| JP2548976B2 (en) * | 1988-12-06 | 1996-10-30 | 日野自動車工業株式会社 | Active stabilizers used in automobiles |
| JP2000135910A (en) * | 1998-10-30 | 2000-05-16 | Tokico Ltd | Suspension system for vehicle |
| JP2004322755A (en) * | 2003-04-23 | 2004-11-18 | Aisin Seiki Co Ltd | Vehicular suspension system |
| JP4151599B2 (en) * | 2004-04-08 | 2008-09-17 | トヨタ自動車株式会社 | Vehicle suspension system |
| JP4254701B2 (en) * | 2004-12-03 | 2009-04-15 | トヨタ自動車株式会社 | Vehicle suspension system |
| CN203784187U (en) * | 2014-01-27 | 2014-08-20 | 安徽柳工起重机有限公司 | Connecting type vehicle oil gas suspension damper valve |
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- 2014-01-27 CN CN201410039147.1A patent/CN103742584B/en not_active Expired - Fee Related
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| CN103742584A (en) | 2014-04-23 |
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