CN202782561U - Lifting shaft system of vehicle provided with hydro-pneumatic suspension - Google Patents
Lifting shaft system of vehicle provided with hydro-pneumatic suspension Download PDFInfo
- Publication number
- CN202782561U CN202782561U CN 201220405826 CN201220405826U CN202782561U CN 202782561 U CN202782561 U CN 202782561U CN 201220405826 CN201220405826 CN 201220405826 CN 201220405826 U CN201220405826 U CN 201220405826U CN 202782561 U CN202782561 U CN 202782561U
- Authority
- CN
- China
- Prior art keywords
- valve
- lift bridge
- vehicle
- oil cylinder
- hydro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
A lifting shaft system of a vehicle provided with a hydro-pneumatic suspension which is characterized that a hydro-pneumatic suspension oil circuit is further provided with a lifting valve (8), the left side of the vehicle and the right side of the vehicle are respectively provided with a lifting shaft oil cylinder (6), a piston rod side (24) of each lifting shaft oil cylinder is communicated with the end B (1) of the lifting valve, the end T (16) of the lifting valve is communicated with a fuel tank (2), and the end P (14) is directly communicated with an outlet of a plunger pump (1) or is communicated with the outlet of the plunger pump (1) through a valve. When vehicle runs on a rugged road, a shaft is supported by a hydro-pneumatic suspension system, cross-country power of the vehicle can be increased and abrasion of tires can be reduced. The lifting shaft system of the vehicle provided with the hydro-pneumatic suspension has the advantages of being composed of vehicle build-in hydro-pneumatic suspension components, improving shaft driving function, being simple in structure and low in cost because only partial components such as electromagnetic control valves and pipelines and bringing high economic benefit for the society.
Description
Technical field
The utility model relates to automotive control system, is a kind of lift bridge system that Hydro-pneumatic vehicle is housed specifically.
Background technology
Along with domestic road infrastructure and economic develop rapidly, lift bridge is widely used on the various transport vehicles.Lift bridge can reduce the unnecessary wastings of resources such as oil consumption and wear on tyres effectively, reduces the damage to highway.
At present the lift bridge form of vehicle mostly is greatly air suspension or hydraulic actuating cylinder lifting etc., and most of lift bridge is not with the driving function, has in the winter time the danger that aggravation is skidded on ice and snow and the muddy road surface.And this lift bridge complex structure, cost are higher.
The oleo-pneumatic suspension of automobile mainly is comprised of elements such as hydro-pneumatic springs, generally be with unreactable gas or nitrogen as elastic medium, with fluid as the power transmission medium, integrate elasticity and damping element, do not need extra bumper, cylinder body has certain directional tagging simultaneously, and required car body arrangement space is little.
Summary of the invention
Technical problem to be solved in the utility model is to solve above-mentioned the deficiencies in the prior art, and a kind of lift bridge system under the support of hydro-pneumatic suspension system is provided.
The described lift bridge system that Hydro-pneumatic vehicle is housed, the oleo-pneumatic suspension oil cylinder all is installed between the both sides of every axletree and the vehicle frame, at vehicle a hydraulic accumulator is housed each side, its accumulator piston side of the hydraulic accumulator of the left and right sides communicates with the hanging oil cylinder piston side of this side respectively, the hanging oil cylinder piston rod side of both sides is communicated with respectively and directly or through valve is communicated with fuel tank, overlap independently oleo-pneumatic suspension oil circuit so that each side have, it is characterized in that: in the oleo-pneumatic suspension oil circuit, also be provided with poppet valve, vehicle each side be provided with the lift bridge oil cylinder, lift bridge cylinder piston rod side communicates with poppet valve B end, poppet valve T end communicates with fuel tank, and poppet valve P end directly or through valve is connected with the plunger delivery side of pump.
The two ends of described lift bridge oil cylinder are individually fixed on vehicle frame and the lift bridge.
Between poppet valve P end and plunger delivery side of pump, hold through lifting flow regulating valve, check valve B end, check valve A successively.
Described poppet valve is two-position four-way valve, and its adhesive position is: poppet valve P end flows to poppet valve B end, and poppet valve A end flows to poppet valve T end; Its position that resets is: poppet valve P end flows to poppet valve A end, and poppet valve B end flows to poppet valve T end.
In the oleo-pneumatic suspension oil circuit, vehicle each side be provided with a disconnecting valve, the disconnecting valve B of described disconnecting valve holds through flow regulating valve or directly is connected with lift bridge oil cylinder piston side, and disconnecting valve T end is communicated with fuel tank, and disconnecting valve P end is connected with the hanging oil cylinder piston side.
Described disconnecting valve is two position three-way valve, and its adhesive position is: disconnecting valve B end flows to disconnecting valve T end; Its position that resets is: disconnecting valve P end flows to disconnecting valve B end.
Between described disconnecting valve and lift bridge oil cylinder piston side, be provided with the isolation flow regulating valve, lift bridge oil cylinder one side at the isolation flow regulating valve communicates with hydraulic control one-way valve A end, disconnecting valve one side of isolation flow regulating valve is connected with the control end of hydraulic control one-way valve, and the B end of hydraulic control one-way valve is connected with the hanging oil cylinder piston side.
The utility model makes vehicle when rugged road traveling, promotes vehicle bridge under the support of hydro-pneumatic suspension system, can improve the wearing and tearing of cross country power and the minimizing tire of vehicle.By vehicle bridge itself with the hydro pneumatic suspension parts form, the lift bridge band drives function, and is simple in structure, only needing increases the parts such as part solenoid electric valve and pipeline, cost is low, cost performance is high, can bring higher economic benefit to society.
Description of drawings
Fig. 1 is oleo-pneumatic suspension entrucking scheme drawing,
Fig. 2 is multifunctional oil gas suspension hydraulic oil circuit figure,
Fig. 3 is lift bridge pretreatment oil circuit scheme drawing,
Fig. 4 is lift bridge oil circuit scheme drawing.
Among the figure: 1-plunger pump, 2-fuel tank, 3-hydraulic accumulator, the 4-wheel, 5-height-control valve, 6-lift bridge oil cylinder, the 7-disconnecting valve, 8-poppet valve, 9-hanging oil cylinder, the 10-axletree, 11-vehicle frame, 12-check valve B end, 13-promotes flow regulating valve, 14-poppet valve P end, 15-poppet valve A end, 16-poppet valve T end, 17-poppet valve B end, 18-disconnecting valve B end, 19-disconnecting valve T end, 20-disconnecting valve P end, 21-hanging oil cylinder piston side, 22-hanging oil cylinder piston rod side, 23-lift bridge oil cylinder piston side, 24-lift bridge cylinder piston rod side, 25-check valve A end, 26-hydraulic control one-way valve, 27-isolation flow regulating valve.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified: as shown in fig. 1 for the entrucking scheme drawing of hydro-pneumatic suspension system, between the both sides of every axletree 10 and the vehicle frame 11 oleo-pneumatic suspension oil cylinder 9 is installed all, at vehicle a hydraulic accumulator 3 is housed each side, hydraulic accumulator 3 its accumulator piston sides of the left and right sides communicate with the hanging oil cylinder piston side 21 of this side respectively, the hanging oil cylinder piston rod side 22 of both sides is communicated with respectively and directly or through valve is communicated with fuel tank 2, overlaps independently oleo-pneumatic suspension oil circuit so that each side have.
Fig. 2 is the application system oil circuit of hydro-pneumatic suspension system, in conjunction with Fig. 2 and Fig. 4, in the oleo-pneumatic suspension oil circuit, be provided with poppet valve 8, vehicle each side be provided with lift bridge oil cylinder 6, lift bridge cylinder piston rod side 24 and poppet valve B end 17 communicates, and poppet valve T end 16 communicates with fuel tank 2, poppet valve P end 14 directly or the process valve be connected with the outlet of plunger pump 1.
The two ends of described lift bridge oil cylinder 6 are individually fixed on vehicle frame 11 and the lift bridge.The lift bridge oil cylinder is at the side-lower of vehicle frame, and when the piston rod indentation of lift bridge oil cylinder 6, lift bridge is raised, and when the lift bridge cylinder piston rod stretched out, lift bridge descended.
Such as Fig. 4, between the outlet of poppet valve P end 14 and plunger pump 1, hold 25 through lifting flow regulating valve 13, check valve B end 12, check valve A successively.
Described poppet valve 8 is two-position four-way valve, and its adhesive position is: poppet valve P end 14 flows to poppet valve B end 17, and poppet valve A end 15 flows to poppet valve T end 16; Its position that resets is: poppet valve P end 14 flows to poppet valve A end 15, and poppet valve B end 17 flows to poppet valve T end 16.
Such as Fig. 2,3, in the oleo-pneumatic suspension oil circuit, vehicle each side be provided with a disconnecting valve 7, the disconnecting valve B of described disconnecting valve 7 holds 18 through flow regulating valve or directly is connected with lift bridge oil cylinder piston side 23, disconnecting valve T end 19 is communicated with fuel tank 2, and disconnecting valve P holds 20 to be connected with hanging oil cylinder 9 piston side.
Such as Fig. 3, described disconnecting valve 7 is two position three-way valves, and its adhesive position is: disconnecting valve B end 18 flows to disconnecting valve T end 19; Its position that resets is: disconnecting valve P end 20 flows to disconnecting valve B end 18.
Such as Fig. 3, between described disconnecting valve 7 and lift bridge oil cylinder piston side 23, be provided with isolation flow regulating valve 27, lift bridge oil cylinder 6 one sides at isolation flow regulating valve 27 communicate with the A end of hydraulic control one-way valve 26, disconnecting valve 7 one sides of isolation flow regulating valve 27 are connected with the control end of hydraulic control one-way valve 26, and the B end of hydraulic control one-way valve 26 is connected with hanging oil cylinder 9 pistons one side.
The whole course of action of lift bridge is, such as Fig. 3, during disconnecting valve 7 no power, each vehicle bridge oil circuit communicates, common bridge oil cylinder is hanging oil cylinder 9 among the figure with the oil circuit of lift bridge oil cylinder 6 by hydraulic control one-way valve 26, and the disconnecting valve P of disconnecting valve 7 end 20 flows to disconnecting valve B end 18 and is interconnected.After disconnecting valve 7 energisings, disconnecting valve B end 18 flows to disconnecting valve T end 19, lift bridge oil circuit and other bridge oil circuit disconnect, hydraulic control one-way valve 26 is closed, the oil of the effect of being stressed of lift bridge oil cylinder piston side 23 flows back to fuel tank 2, the pressure of lift bridge piston side 23 greatly reduces, although promote tire also on ground, no longer bears load.
Then, such as Fig. 4,8 actions of vehicular control unit ECU control poppet valve, the adhesive position puts in place, plunger pump 1 pump oil flows to poppet valve B end 17 through check valve A end 25, check valve B end 12, flow regulating valve 13, poppet valve P end 14, and to lift bridge cylinder piston rod side 24, the pressure of lift bridge cylinder piston rod side constantly raises, the piston rod indentation of lift bridge oil cylinder, vehicle bridge are able to promote from ground.Plunger pump 20 seconds time of 1 continuous running is lift bridge oil cylinder pump oil.This operates every 6-13 minute and carries out once, and during this period, poppet valve 8 keeps "on" position always.
At the vehicle at full load, or the chassis need to recover when height, and lift bridge needs to sink, and poppet valve 8 no longer switch on, and poppet valve 8 resets, and plunger pump 1 is connected to poppet valve A by poppet valve P end 14 and holds 15; The pressure oil of lift bridge cylinder piston rod side 24 is communicated to poppet valve T end 16 by poppet valve B end, directly is communicated to fuel tank 2.Only have the lift bridge tire of working as to land, lift bridge oil cylinder piston side 23 is full of oil, just can set up the pressure of a little in the lift bridge oil cylinder, and plunger pump is pump oil no longer, and lift bridge begins to bear car load.
Afterwards, again communicate between lift bridge oil cylinder and the non-lift bridge oil cylinder, the pressure of lift bridge oil cylinder piston side increases, when this pressure reaches about 1/3 non-lift bridge force value, hydraulic control one-way valve 26 is opened, oil flows in the lift bridge oil cylinder from non-lift bridge oil cylinder, until hydraulic control one-way valve 26 pressure at both sides are suitable, pressure is got back to state of equilibrium between each oil cylinder.
Claims (7)
1. lift bridge system that Hydro-pneumatic vehicle is housed, between the both sides of every axletree (10) and the vehicle frame (11) oleo-pneumatic suspension oil cylinder (9) is installed all, at vehicle a hydraulic accumulator (3) is housed each side, its accumulator piston side of the hydraulic accumulator of the left and right sides (3) communicates with the hanging oil cylinder piston side (21) of this side respectively, the hanging oil cylinder piston rod side (22) of both sides is communicated with respectively and directly or through valve is communicated with fuel tank (2), overlap independently oleo-pneumatic suspension oil circuit so that each side have, it is characterized in that: in the oleo-pneumatic suspension oil circuit, also be provided with poppet valve (8), vehicle each side be provided with lift bridge oil cylinder (6), lift bridge cylinder piston rod side (24) communicates with poppet valve B end (17), poppet valve T end (16) communicates with fuel tank (2), and poppet valve P end (14) directly or through valve is connected with the outlet of plunger pump (1).
2. the lift bridge system that Hydro-pneumatic vehicle is housed according to claim 1, it is characterized in that: the two ends of described lift bridge oil cylinder (6) are individually fixed on vehicle frame (11) and the lift bridge.
3. the lift bridge system that Hydro-pneumatic vehicle is housed according to claim 1 is characterized in that: hold (25) through lifting flow regulating valve (13), check valve B end (12), check valve A successively between the outlet of poppet valve P end (14) and plunger pump (1).
4. the lift bridge system that Hydro-pneumatic vehicle is housed according to claim 1, it is characterized in that: described poppet valve (8) is two-position four-way valve, its adhesive position is: poppet valve P end (14) flows to poppet valve B end (17), and poppet valve A end (15) flows to poppet valve T end (16); Its position that resets is: poppet valve P end (14) flows to poppet valve A end (15), and poppet valve B end (17) flows to poppet valve T end (16).
5. the lift bridge system that Hydro-pneumatic vehicle is housed according to claim 1, it is characterized in that: in the oleo-pneumatic suspension oil circuit, vehicle each side be provided with a disconnecting valve (7), the disconnecting valve B of described disconnecting valve (7) holds (18) through flow regulating valve or directly is connected with lift bridge oil cylinder piston side (23), disconnecting valve T end (19) is communicated with fuel tank (2), and disconnecting valve P end (20) is connected with hanging oil cylinder (9) piston side.
6. the lift bridge system that Hydro-pneumatic vehicle is housed according to claim 5, it is characterized in that: described disconnecting valve (7) is two position three-way valve, its adhesive position is: disconnecting valve B end (18) flows to disconnecting valve T end (19); Its position that resets is: disconnecting valve P end (20) flows to disconnecting valve B end (18).
7. according to claim 5 or the 6 described lift bridge systems that Hydro-pneumatic vehicle is housed, it is characterized in that: between described disconnecting valve (7) and lift bridge oil cylinder piston side (23), be provided with isolation flow regulating valve (27), lift bridge oil cylinder (6) one sides at isolation flow regulating valve (27) communicate with hydraulic control one-way valve (26) A end, disconnecting valve (7) one sides of isolation flow regulating valve (27) are connected with the control end of hydraulic control one-way valve (26), and the B end of hydraulic control one-way valve (26) is connected with hanging oil cylinder (9) piston side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405826 CN202782561U (en) | 2012-08-16 | 2012-08-16 | Lifting shaft system of vehicle provided with hydro-pneumatic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405826 CN202782561U (en) | 2012-08-16 | 2012-08-16 | Lifting shaft system of vehicle provided with hydro-pneumatic suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202782561U true CN202782561U (en) | 2013-03-13 |
Family
ID=47809885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405826 Expired - Lifetime CN202782561U (en) | 2012-08-16 | 2012-08-16 | Lifting shaft system of vehicle provided with hydro-pneumatic suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202782561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253100A (en) * | 2013-05-23 | 2013-08-21 | 江苏大学 | Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system |
| CN114559783A (en) * | 2021-03-31 | 2022-05-31 | 北京京西重工有限公司 | Hydraulic actuator for vehicle suspension |
-
2012
- 2012-08-16 CN CN 201220405826 patent/CN202782561U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253100A (en) * | 2013-05-23 | 2013-08-21 | 江苏大学 | Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system |
| CN103253100B (en) * | 2013-05-23 | 2015-06-10 | 江苏大学 | Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system |
| CN114559783A (en) * | 2021-03-31 | 2022-05-31 | 北京京西重工有限公司 | Hydraulic actuator for vehicle suspension |
| CN114559783B (en) * | 2021-03-31 | 2024-01-12 | 北京京西重工有限公司 | Hydraulic actuator for a vehicle suspension |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203637503U (en) | Amphibiousness vehicle hydraulic folding and unfolding suspension device | |
| CN102950984A (en) | Intelligent balance suspension system | |
| CN202782561U (en) | Lifting shaft system of vehicle provided with hydro-pneumatic suspension | |
| CN203780258U (en) | Rear suspension for hydraulic interconnection torsion-eliminated suspension | |
| CN105539060A (en) | Hydraulic interconnected suspension | |
| CN203237286U (en) | Three-axle steering system and automobile applying same | |
| CN203739575U (en) | Rear axle lifting system of commercial vehicle | |
| CN203093658U (en) | Novel oil gas suspension system | |
| CN208198374U (en) | A kind of survival kit of automobile | |
| CN103879257A (en) | Suspension valves, oil gas suspension control system and engineering vehicle | |
| CN101654053B (en) | Semitrailer floating shaft suspension device | |
| CN202782562U (en) | Height control system provided with hydro-pneumatic suspension vehicle | |
| CN202783347U (en) | Rear shaft active steering system of vehicle provided with hydro-pneumatic suspension | |
| CN205553846U (en) | A air suspension system that is used for 2nd steering axle gasbag of commercial car to promote | |
| CN204196647U (en) | Suspension valve, hydro pneumatic suspension control system and engineering truck | |
| CN202896205U (en) | Intelligent balance suspension system | |
| CN104044427B (en) | Triple-axle coach lift bridge control system | |
| CN103921647B (en) | A kind of rear overhang of hydraulic pressure interconnection torsion dissipating hanging frame | |
| CN107244205A (en) | Independent steering air suspension and engineering truck | |
| CN202782560U (en) | Car hydro-pneumatic suspension system | |
| CN203158068U (en) | Mechanism capable of realizing simultaneous steering of front axle and rear axle | |
| CN203864384U (en) | Independent type oil gas suspension | |
| CN202831045U (en) | Excavator front axle swing frame balance locking mechanism | |
| CN202764638U (en) | Energy-recycling type automotive suspension damper based on electromagnetism and hydraulic energy storage | |
| CN204136722U (en) | Two-stage type hydro pneumatic suspension device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |