CN201002495Y - Height adjustable oil-gas spring separating suspension device for multi-axle super heavy-duty cross-country car - Google Patents
Height adjustable oil-gas spring separating suspension device for multi-axle super heavy-duty cross-country car Download PDFInfo
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- CN201002495Y CN201002495Y CNU2006201701160U CN200620170116U CN201002495Y CN 201002495 Y CN201002495 Y CN 201002495Y CN U2006201701160 U CNU2006201701160 U CN U2006201701160U CN 200620170116 U CN200620170116 U CN 200620170116U CN 201002495 Y CN201002495 Y CN 201002495Y
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Abstract
The utility model discloses a height adjustable oil gas spring independent suspension device used in a multi-shaft superduty off road vehicle, which includes a monowheel suspension mechanism symmetrically arranged on both sides of the frame. The oil gas spring support and the suspension pedestal of the monowheel suspension mechanism are of fixed connection with the frame, and a suspension hydraulic control system is of fixed connection with the frame to control the oil way of the monowheel suspension mechanism. The utility model can reduce the body vibration effectively, increase the driving stability and regulate the body as required to meet the requirement to the off road traffic ability under the conditions such as the railway transportation, which is very suitable for the usage on heavy off road vehicle.
Description
Technical field
The utility model relates to the extra heavy off road vehicle draft hitch, refers to a kind of multiaxis extra heavy off road vehicle adjustable height hydro-pneumatic spring independent suspension device particularly.
Background technology
Draft hitch adopts steel spring or torsion bar spring mostly on the multiaxis extra heavy off road vehicle at present, and be that the extra heavy off road vehicle that is suspended in of elastic element is used lessly with the hydro-pneumatic spring, wherein the multiaxis extra heavy off road vehicle hydro-pneumatic spring equalizing-suspension device with Taian Special vehicle Mfg. Factory is representative.It is the multi-joint perforation rigid axle of elastic element with the hydro-pneumatic spring that this draft hitch has adopted, and two groups of vehicle bridge before and after containing on car load is arranged are communicated with by the hydro-pneumatic spring with each group vehicle bridge homonymy, make every vehicle bridge stress equalization of vehicle bridge on the same group.The draft hitch of this structure can improve the vehicle bridge force-bearing situation to a certain extent, improves riding comfort.But when travelling on uneven road surface, left and right wheel influences each other, and makes vehicle bridge and vehicle body run-off the straight, and when the both sides wheel is asynchronous when beating, shimmy phenomenon takes place in wheel meeting left and right waving easily, makes the riding comfort of car load and operational stability be affected; Bodywork height can't be regulated, can not satisfy railway transportation maybe needs crossing ability requirement under the condition such as pass through under the bridge of limit for height.This mainly is that its left and right wheel connects with an integral shaft because this draft hitch is a rigid axle, connects to ground through suspension again; This draft hitch does not have vehicle height adjusting device yet simultaneously, does not therefore have the bodywork height regulatory function.
Summary of the invention
The purpose of this utility model is in order to solve above-mentioned the deficiencies in the prior art, propose a kind ofly can effectively reduce vibration, improve vehicle running smoothness, improve the vehicle bridge force-bearing situation, have the multiaxis extra heavy off road vehicle adjustable height hydro-pneumatic spring independent suspension device of bodywork height regulatory function.
At above-mentioned purpose, the multiaxis extra heavy off road vehicle adjustable height hydro-pneumatic spring independent suspension device that the utility model is designed, comprise be arranged symmetrically in vehicle frame all around a plurality of single-wheel suspension fork mechanisms and be installed in suspension hydraulic control system on the vehicle frame.Described single-wheel suspension fork mechanism mainly is made up of hydro-pneumatic spring and two transverse arm guiding mechanism, two transverse arm guiding mechanisms comprise upper suspension arm, lower suspension link and strut mount, the upper and lower hanger of hydro-pneumatic spring links to each other with the middle part of hydro-pneumatic spring bearing and upper suspension arm respectively, the external side end of upper suspension arm and lower suspension link is used for linking to each other with wheel nave, the medial extremity of upper suspension arm and lower suspension link is fixed on the strut mount, and hydro-pneumatic spring bearing and strut mount are installed on the vehicle frame.Described suspension hydraulic control system is mainly by fuel tank, oil pipe, common component such as oil feed pump, and corresponding to many covers hydraulicchange-over valve group of a plurality of single-wheel suspension fork mechanisms all around, quantitatively cylinder and hydraulic lock constitute, oil feed pump links to each other with the oil outlet of fuel tank, the oil inlet end of hydraulicchange-over valve group links to each other with the oil feed pump mouth respectively with the control end of hydraulic lock, hydraulicchange-over valve group oil transportation end links to each other with an end of quantitative cylinder, quantitatively the other end of cylinder links to each other with a conduction terminal of hydraulic lock, another conduction terminal of hydraulic lock links to each other with the hydraulic oil port of cooresponding single-wheel suspension fork mechanism, and hydraulicchange-over valve group oil revolving end links to each other with the return opening of fuel tank.
The described a plurality of single-wheel suspension fork mechanisms that are arranged symmetrically on the vehicle frame are divided into four groups by all around orientation, and the hydraulic oil port of each single-wheel suspension fork mechanism in every group is interconnected; Described suspension hydraulic control system is provided with quadruplet hydraulicchange-over valve group, quantitative cylinder and hydraulic lock assembly, the corresponding one group of single-wheel suspension fork mechanism of every grip assembly.
Advantage of the present utility model is: adopt the structure of independent suspension that left and right wheel can not interacted, all there is excellent contact on all wheels and ground, reduced the vibration of cross-country car and jolted, improved the ride comfort of cross-country car, make the cross-country car wheel have bigger stroke simultaneously, guarantee that cross-country car has good cross-country maneuverability; In device, introduced cover hydraulic efficiency governing loop---a suspension hydraulic control system, be used for being communicated with and controlling each hydro-pneumatic spring, by each wheel weight balance in the suspension hydraulic control system realization system, avoiding occurring the situation of single-wheel suspension overload, thereby improved the force-bearing situation of vehicle bridge; Because the introducing of suspension hydraulic control system makes the single-wheel suspension fork mechanism to regulate, thereby realized the grouping of bodywork height and integrally-regulated, fully satisfied railway transportation maybe needs crossing ability requirement under the condition such as pass through under the bridge of limit for height.
Description of drawings
Fig. 1 is the perspective view of this independent suspension frame unit;
Fig. 2 is the perspective view of single-wheel suspension fork mechanism among Fig. 1;
Fig. 3 is the suspension hydraulic control system principle of work block diagram of four groups of single-wheel suspension fork mechanisms;
Fig. 4 is the suspension hydraulic control system principle of work block diagram of one group of single-wheel suspension fork mechanism.
Fig. 5 is the structure and the principle of work block diagram of hydraulicchange-over valve group.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, this device by be arranged symmetrically in vehicle frame 9 all around a plurality of single-wheel suspension fork mechanisms 1 and the suspension hydraulic control system 10 that is installed on the vehicle frame 9 constitute.As shown in Figure 2, described single-wheel suspension fork mechanism 1 mainly is made up of hydro-pneumatic spring 1-1 and two transverse arm guiding mechanism, two transverse arm guiding mechanisms comprise upper suspension arm 1-2, lower suspension link 1-3 and strut mount 1-5, on the hydro-pneumatic spring 1-1, following hanger links to each other with the middle part of hydro-pneumatic spring bearing 1-4 and upper suspension arm 1-2 respectively, the external side end of upper suspension arm 1-2 and lower suspension link 1-3 is used for linking to each other with wheel nave, the medial extremity of upper suspension arm 1-2 and lower suspension link 1-3 is fixed on the strut mount 1-5, hydro-pneumatic spring bearing 1-4 and strut mount 1-5 and vehicle frame 9 are fixing, single-wheel suspension fork mechanism 1 and vehicle body are fixed into as a whole, make bodywork height fully by the height decision of single-wheel suspension fork mechanism 1.Each single-wheel suspension fork mechanism 1 is corresponding with a wheel, and the installation quantity of single-wheel suspension fork mechanism 1 is decided by wheel quantity.Described suspension hydraulic control system 10 is mainly by fuel tank 2, oil pipe 3, common component such as oil feed pump 4, and corresponding to the quadruplet hydraulicchange-over valve group 6 of a plurality of single-wheel suspension fork mechanisms 1 all around, quantitatively cylinder 7 and hydraulic lock 8 constitute, oil feed pump 4 links to each other with the oil outlet of fuel tank 2, carrying for the oil circuit of whole hydraulic efficiency pressure system provides power, the oil inlet end 6-4 of hydraulicchange-over valve group 6 links to each other with oil feed pump 4 mouths respectively with the control end of hydraulic lock 8, the oil transportation end 6-6 of hydraulicchange-over valve group 6 links to each other with an end of quantitative cylinder 7, quantitatively the other end of cylinder 7 links to each other with a conduction terminal of hydraulic lock 8, another conduction terminal of hydraulic lock 8 links to each other with the hydraulic oil port 1-6 of cooresponding single-wheel suspension fork mechanism 1, and hydraulicchange-over valve group 6 oil revolving end 6-5 link to each other with the return opening of fuel tank 2.Suspension hydraulic control system 10 makes that by the adjusting of each valve and valve group each the single-wheel suspension fork mechanism 1 under each suspension hydraulic control system 10 control keeps load equalization.Be to guarantee the safe operation of suspension hydraulic control system 10, prevent that hydraulic pressure is too high to cause failsafety or pipeline breakage, between the return opening of oil feed pump 4 mouths and fuel tank 2, can be provided with one and regulate hydraulic pressure of pipe line to guarantee the electromagnetic valve 5 of security of system.The wheel of car load propons is divided into one group, and the wheel of back axle is divided into one group; Wheel on the left of during the wheel on the wheel in left side, right side and back are organized in the preceding group, the wheel on right side are realized each wheel weight balance (totally four balance groups) in the group respectively by single-wheel suspension fork mechanism 1 usefulness suspension hydraulic control system 10 is interconnected.The balance group of forming with two wheels is an example, in the vehicle ' process, when supposing the suspension load increase at the arbitrary hydro-pneumatic spring 1-1 place in the balance group, piston upward movement then, the fluid of hydro-pneumatic spring 1-1 epicoele is outwards got rid of, in the air bag of wherein a part of fluid by oil pipe inflow hydro-pneumatic spring 1-1 its operation pressure is raise, another part fluid flows in the work loop of another hydro-pneumatic spring 1-1 by oil pipe under differential pressure action; Flow into the epicoele that a fluid part in the work loop of another hydro-pneumatic spring 1-1 enters this hydro-pneumatic spring 1-1, another part flows in the air bag of this hydro-pneumatic spring 1-1 the operation pressure of hydro-pneumatic spring 1-1 is also raise, then its piston moves downward, and suspension raises and the application force at wheel ground connection place increases (load that is suspension increases); The operation pressure of two hydro-pneumatic spring 1-1 will tend to balance gradually, thereby realize the balance of suspension in the driving process.
As shown in Figure 5, described hydraulicchange-over valve group 6 is a prior art, is made of solenoid directional control valve 6-1, hydraulicchange-over valve 6-2 and hydraulic control one-way valve 6-3.The oil inlet end 6-4 of hydraulicchange-over valve group 6 and oil revolving end 6-5 are respectively input end and the commutation mouth of hydraulicchange-over valve 6-2, and the oil transportation end 6-6 of hydraulicchange-over valve group 6 then is the mouth of hydraulic control one-way valve 6-3.The oil inlet end 6-4 of hydraulicchange-over valve group 6 is provided with two branch roads, and a branch road connects the input end of solenoid directional control valve 6-1, and another branch road connects the control end of hydraulic control one-way valve 6-3.The oil revolving end 6-5 of hydraulicchange-over valve group 6 also is provided with two branch roads, and a branch road connects the commutation mouth of solenoid directional control valve 6-1, and another branch road connects the control output end of hydraulicchange-over valve 6-2.In valve group inside, the control input end of hydraulicchange-over valve 6-2 links to each other with the mouth of solenoid directional control valve 6-1, and the mouth of hydraulicchange-over valve 6-2 connects the input end of hydraulic control one-way valve 6-3.By to the unlatching of solenoid directional control valve 6-1 or close, whether the high-voltage oil liquid of control oil inlet end 6-4 flows into the control input end of hydraulicchange-over valve 6-2, thereby whether control hydraulicchange-over valve 6-2 commutates, realize fluid in the control oil pipe 3 import quantitative cylinder 7 or quantitatively the fluid in the cylinder 7 flow back to the function of fuel tank 2.
As shown in Figure 3, the adjusting of bodywork height also is that control by suspension hydraulic control system 10 realizes.When bodywork height need reduce, open oil feed pump 4, provide fluid from fuel tank 2 to the suspension hydraulic pressure system by oil pipe 3, the solenoid directional control valve 6-1 in the hydraulicchange-over valve group 6 is switched on; The pressure oil liquid of oil feed pump 4 outputs is opened the hydraulic control one-way valve 6-3 of hydraulic lock 8 and hydraulicchange-over valve group 6, the hydraulicchange-over valve 6-2 commutation in the hydraulicchange-over valve group 6; Under the dead weight of vehicle effect, fluid in the hydro-pneumatic spring 1-1 grease chamber is discharged from, the fluid that hydro-pneumatic spring 1-1 discharges is pooled to the left chamber of quantitative cylinder 7 through hydraulic lock 8, and the piston of quantitative cylinder 7 is moved right, and quantitatively the fluid in cylinder 7 right chambeies flows back to fuel tank 2 through the oil revolving end 6-5 of hydraulicchange-over valve group 6.At this moment, the plunger of each hydro-pneumatic spring 1-1 all shrinks, and makes bodywork height reduce; When the fluid in quantitative cylinder 7 right chambeies was discharged from fully, bodywork height was reduced to minimum.Oil feed pump 4 and each valve are closed, and bodywork height keeps minimum constant.When after bodywork height reduces, needing to recover, open oil feed pump 4, provide fluid from fuel tank 2 to the suspension hydraulic pressure system, the solenoid directional control valve 6-1 in the hydraulicchange-over valve group 6 is in off-position by oil pipe 3; The pressure oil liquid of oil feed pump 4 outputs is opened the hydraulic control one-way valve 6-3 of hydraulic lock 8 and hydraulicchange-over valve group 6, the high-voltage oil liquid of oil feed pump 4 outputs enters the right chamber of quantitative cylinder 7 through the oil transportation end 6-6 of hydraulicchange-over valve group 6, the piston of quantitative cylinder 7 is moved to the left, and the fluid in quantitative cylinder 7 left chambeies is pressed into the grease chamber of hydro-pneumatic spring 1-1 through hydraulic lock 8, gas pressurized in the hydro-pneumatic spring 1-1 air bag, then the operation pressure of hydro-pneumatic spring 1-1 raises, and its plunger elongation makes bodywork height raise; When the fluid in quantitative cylinder 7 left chambeies was discharged from fully, bodywork height returned to the highest.Oil feed pump 4 and each valve are closed, and bodywork height keeps peak constant.What the height of adjusting vehicle body used is the principle of relative motion.Because single-wheel suspension fork mechanism 1 is captiveed joint with vehicle frame 9, becomes as a whole, so relative motion does not take place with single-wheel suspension fork mechanism 1 in vehicle frame 9.Upper suspension arm 1-2 and lower suspension link 1-3 are with after the wheel wheel of wheel links to each other, formed a four-bar mechanism with strut mount 1-5, as upper suspension arm 1-2 because hydro-pneumatic spring 1-1 shrinks during with respect to vehicle frame 9 upward movements, lower suspension link 1-3 also moves with upper suspension arm 1-2, thereby the wheel wheel of drive wheel is with respect to vehicle frame 9 upward movements; Because the wheel close proximity to ground, so vehicle frame 9 moves downward with respect to ground, and bodywork height also decreases.Otherwise, as upper suspension arm 1-2 because hydro-pneumatic spring 1-1 elongation and when moving downward with respect to vehicle frame 9, lower suspension link 1-3 also moves with upper suspension arm 1-2, thereby the wheel wheel that drives wheel moves downward with respect to vehicle frame 9; Because the wheel close proximity to ground, so vehicle frame 9 is with respect to the ground upward movement, and bodywork height also increases.
As shown in Figure 4, each suspension hydraulic control system 10 can be opened separately, and the wheel of car load propons is divided into one group, and the wheel of back axle is divided into one group; Before in the group in control left side, right side wheels and the back group 1 group of the single-wheel suspension fork mechanism of control left side, right side wheels respectively by suspension hydraulic control system 10 controls of this group of control.By opening single suspension hydraulic control system 10, make the height of 1 group of this suspension hydraulic control system 10 controls single-wheel suspension fork mechanism down to regulate, thereby realized part adjusting bodywork height.
Claims (2)
1. multiaxis extra heavy off road vehicle adjustable height hydro-pneumatic spring independent suspension device, comprise be arranged symmetrically in vehicle frame (9) all around a plurality of single-wheel suspension fork mechanisms (1) and be installed in suspension hydraulic control system (10) on the vehicle frame (9), it is characterized in that:
Described single-wheel suspension fork mechanism (1) mainly is made up of hydro-pneumatic spring (1-1) and two transverse arm guiding mechanism, two transverse arm guiding mechanisms comprise upper suspension arm (1-2), lower suspension link (1-3) and strut mount (1-5), on the hydro-pneumatic spring (1-1), following hanger links to each other with the middle part of hydro-pneumatic spring bearing (1-4) with upper suspension arm (1-2) respectively, the external side end of upper suspension arm (1-2) and lower suspension link (1-3) is used for linking to each other with wheel nave, the medial extremity of upper suspension arm (1-2) and lower suspension link (1-3) is fixed on the strut mount (1-5), and hydro-pneumatic spring bearing (1-4) and strut mount (1-5) are installed on the vehicle frame (9);
Described suspension hydraulic control system (10) is mainly by fuel tank (2), oil pipe (3), oil feed pump (4), and corresponding to many covers hydraulicchange-over valve group (6) of a plurality of single-wheel suspension fork mechanisms (1) all around, quantitatively cylinder (7) and hydraulic lock (8) constitute, oil feed pump (4) links to each other with the oil outlet of fuel tank (2), the oil inlet end (6-4) of hydraulicchange-over valve group (6) links to each other with oil feed pump (4) mouth respectively with the control end of hydraulic lock (8), hydraulicchange-over valve group (6) oil transportation end (6-6) links to each other with an end of quantitative cylinder (7), quantitatively the other end of cylinder (7) links to each other with a conduction terminal of hydraulic lock (8), another conduction terminal of hydraulic lock (8) links to each other with the hydraulic oil port (1-6) of cooresponding single-wheel suspension fork mechanism (1), and hydraulicchange-over valve group (6) oil revolving end (6-5) links to each other with the return opening of fuel tank (2).
2. multiaxis extra heavy off road vehicle adjustable height hydro-pneumatic spring independent suspension device according to claim 1, it is characterized in that: the described a plurality of single-wheel suspension fork mechanisms (1) that are arranged symmetrically on the vehicle frame (9) are divided into four groups by all around orientation, and the hydraulic oil port (1-6) of each single-wheel suspension fork mechanism (1) in every group is interconnected; Described suspension hydraulic control system (10) is provided with quadruplet hydraulicchange-over valve group (6), quantitative cylinder (7) and hydraulic lock (8) assembly, the corresponding one group of single-wheel suspension fork mechanism (1) of every grip assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201701160U CN201002495Y (en) | 2006-12-30 | 2006-12-30 | Height adjustable oil-gas spring separating suspension device for multi-axle super heavy-duty cross-country car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201701160U CN201002495Y (en) | 2006-12-30 | 2006-12-30 | Height adjustable oil-gas spring separating suspension device for multi-axle super heavy-duty cross-country car |
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| Publication Number | Publication Date |
|---|---|
| CN201002495Y true CN201002495Y (en) | 2008-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201701160U Expired - Fee Related CN201002495Y (en) | 2006-12-30 | 2006-12-30 | Height adjustable oil-gas spring separating suspension device for multi-axle super heavy-duty cross-country car |
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| Country | Link |
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| CN (1) | CN201002495Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760481A (en) * | 2015-03-06 | 2015-07-08 | 三江瓦力特特种车辆有限公司 | Electrically-driven hydraulic independent suspension coiled tubing chassis |
| CN111216500A (en) * | 2020-01-10 | 2020-06-02 | 北京航天发射技术研究所 | Integrated double-transverse-arm independent suspension and hydro-pneumatic spring mounting bracket |
-
2006
- 2006-12-30 CN CNU2006201701160U patent/CN201002495Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104760481A (en) * | 2015-03-06 | 2015-07-08 | 三江瓦力特特种车辆有限公司 | Electrically-driven hydraulic independent suspension coiled tubing chassis |
| CN104760481B (en) * | 2015-03-06 | 2017-04-05 | 三江瓦力特特种车辆有限公司 | A kind of electric drive hydraulic pressure independent suspension coiled tubing chassis |
| CN111216500A (en) * | 2020-01-10 | 2020-06-02 | 北京航天发射技术研究所 | Integrated double-transverse-arm independent suspension and hydro-pneumatic spring mounting bracket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20131230 |