CN107696819B - The quasi- zero stiffness suspension system of integral axle - Google Patents
The quasi- zero stiffness suspension system of integral axle Download PDFInfo
- Publication number
- CN107696819B CN107696819B CN201711108765.7A CN201711108765A CN107696819B CN 107696819 B CN107696819 B CN 107696819B CN 201711108765 A CN201711108765 A CN 201711108765A CN 107696819 B CN107696819 B CN 107696819B
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- cylinder
- accumulator
- oil
- oil cylinder
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/265—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs hydraulic springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/154—Fluid spring with an accumulator
Abstract
The invention discloses a kind of quasi- zero stiffness suspension systems of integral axle.The suspension system includes two Vertical Cylinders in left and right, two cross cylinders in left and right, four accumulators and related valve group and pipeline.One end vehicle bridge of each oil cylinder is hinged, and the other end is hinged with vehicle frame.The big chamber of each oil cylinder is connected by solenoid valve and pipeline with an accumulator.Each oil cylinder has independent hydraulic control system respectively, shares a hydraulic pump.The suspension system have it is oil-filled, drain the oil and rigidity and elastic conversion function, and the quasi- zero stiffness characteristic near equilbrium position can be realized by the parameter of four accumulators of Proper Match in conjunction with cylinder sizes and oil cylinder positional parameter.This system is a kind of passive hydro-pneumatic suspension system, at low cost, and safety coefficient is high.
Description
Technical field
The present invention relates to a kind of suspension systems, more particularly, to a kind of novel achievable quasi- zero suitable for integral axle
The hydro-pneumatic suspension system of rigidity.
Background technique
As vehicle technology develops, hydro-pneumatic suspension system is widely used due to its nonlinear characteristic.Suspension it is rigid
It spends its smaller effectiveness in vibration suppression to be more obvious, but suspension travel is larger.But current hydro pneumatic suspension is larger in vehicle balance position stiffness, shadow
Ring its damping property.
Summary of the invention
The purpose of the present invention is to solve vehicle complex working condition downward driving ride comfort difference problem, provide it is a kind of at
This relative moderate, Novel oil gas suspension system easy for installation.The present invention, which designs a kind of suspension, makes it in the rigidity of equilbrium position
It is approximately zero, other positions rigidity and displacement are at nonlinear hydro-pneumatic suspension system.
The invention patent realizes that technical solution used by its technical purpose is: a kind of standard zero suitable for integral axle
Linear Stiffness hydro-pneumatic suspension system, including left vertical oil cylinder, Right vertical oil cylinder, left side cross cylinder, the horizontal oil in right side
Cylinder, the first accumulator, the second accumulator, third accumulator, the 4th accumulator, mounting bracket, the first solenoid valve, the second electromagnetism
Valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th solenoid valve, the 7th solenoid valve, the 8th solenoid valve, the 9th electromagnetism
Valve, the tenth solenoid valve, the 11st solenoid valve, the 12nd solenoid valve, the first damping hole, the second damping hole, third damping hole, the 4th
Damping hole, filter, hydraulic pump, the first overflow valve, the second overflow valve, third overflow valve, the 4th overflow valve, the 5th overflow valve,
Shut-off valve, fuel tank and fluid pressure line.Left vertical oil cylinder, Right vertical oil cylinder, left side cross cylinder and right side cross cylinder are all
There is respective hydraulic control system, and shares a hydraulic pump.Left vertical oil cylinder, Right vertical oil cylinder, left side cross cylinder
Third solenoid valve, the tenth solenoid valve, second solenoid valve, the 11st electricity are passed through by pipeline respectively with the big chamber of right side cross cylinder
Magnet valve is connected with the second accumulator, third accumulator, the first accumulator, the 4th accumulator.Left vertical oil cylinder and right side are horizontal
Oil cylinder near normal is placed, and suspension vertical load is primarily subjected to；Left side cross cylinder and right side cross cylinder level of approximation are placed,
The effect of left side cross cylinder and right side cross cylinder is to adjust suspension system rigidity.First accumulator, the second accumulator, third
Suspension system can be realized in equilbrium position according to the Rational Matching of Parameters of suspension system in accumulator and the 4th accumulator parameter
Quasi- zero stiffness characteristic.
Left vertical oil cylinder, Right vertical oil cylinder, left side cross cylinder and right side cross cylinder respectively correspond independent hydraulically controlled
Control system shares a hydraulic pump.Left vertical oil cylinder corresponds to that hydraulic system is oil-filled, drain the oil, rigidity is converted with elasticity and passed through
Third solenoid valve, the 4th solenoid valve, the 5th solenoid valve coordinated control；Right vertical oil cylinder corresponds to that hydraulic system is oil-filled, drains the oil, just
Property with elasticity conversion pass through the 8th solenoid valve, the 9th solenoid valve, the tenth solenoid valve coordinated control；Left side cross cylinder corresponds to hydraulic
System is oil-filled, drain the oil, rigidity is converted with elasticity through the first solenoid valve, second solenoid valve, the 6th solenoid valve coordinated control；Right side
Cross cylinder corresponds to that hydraulic system is oil-filled, drain the oil, rigidity with elasticity conversion passes through the 7th solenoid valve, the 11st solenoid valve, the tenth
Two solenoid valve coordinated controls.To protect the first accumulator, the first overflow valve is installed between the first accumulator and fuel tank；For protection second
Accumulator installs the second overflow valve between the second accumulator and fuel tank；To protect third accumulator, pacify between third accumulator and fuel tank
Fill the 4th overflow valve；To protect the 4th accumulator, the 5th overflow valve is installed between the 4th accumulator and fuel tank；To protect hydraulic pump,
Third overflow valve is installed between hydraulic pump and fuel tank.
Beneficial effects of the present invention:
(1) present invention can change the rigidity of suspension system by coordinating volume, the pre-charging pressure of change accumulator.It is outstanding
Rigidity of the frame system in equilbrium position adjustable be positive rigidity, zero stiffness and negative stiffness.As long as two accumulator parameter designings are reasonable,
It can guarantee and be suspended in zero stiffness subject to the rigidity of equilbrium position, to improve the ride comfort of vehicle driving.
(2) this hydro pneumatic suspension is still Nonlinear Suspension System, and the rigidity of suspension and the relationship of displacement are still non-linear relation.It can fill
The damping property of hydro pneumatic suspension is waved in distribution.
(3) this hydro-pneumatic suspension system is passive hydro-pneumatic suspension system, easy for installation, designs and manufactures cost relative to actively
Suspension, semi-active suspension are low.
(4) suspension system can realize rigidity and elasticity conversion, have fill, function of draining the oil, and have system pressure overload protect
Protective function.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the quasi- zero stiffness oil gas hanging that each arrogant chamber of each oil cylinder is connected by the present invention on the basis of Fig. 1 with small chamber
The structural schematic diagram of frame system.
Fig. 3 is the present invention interconnecting the size chambers of left and right Vertical Cylinders on the basis of Fig. 1, left and right horizontal oil cylinder it is big
The structural schematic diagram for the quasi- zero stiffness hydro-pneumatic suspension system that small chamber also interconnects.
Fig. 4 is the cylinder barrel of two Vertical Cylinders and two cross cylinders while the quasi- zero stiffness hydro-pneumatic suspension system hinged with vehicle bridge
Structural schematic diagram.
Fig. 5 is that two Vertical Cylinders cylinder rods and vehicle bridge are hinged, the quasi- zero stiffness oil gas of two cross cylinder cylinder barrels and vehicle bridge hingedly
The structural schematic diagram of suspension system.
Fig. 6 is that two Vertical Cylinders cylinder barrels and vehicle bridge are hinged, the quasi- zero stiffness oil gas of two cross cylinder cylinder rods and vehicle bridge hingedly
The structural schematic diagram of suspension system.
Wherein: 1- vehicle bridge；2- vehicle frame；3- bracket；4- Right vertical oil cylinder；41- left vertical oil cylinder；Horizontal oil on the right side of 5-
Cylinder；Cross cylinder on the left of 51-；The first damping hole of 6-；The second damping hole of 61-；62- third damping hole；The 4th damping hole of 63-；7-
First solenoid valve；71- second solenoid valve；72- third solenoid valve；The 4th solenoid valve of 73-；The 5th solenoid valve of 74-；The 6th electricity of 75-
Magnet valve；The 7th solenoid valve of 76-；The 8th solenoid valve of 77-；The 9th solenoid valve of 78-；The tenth solenoid valve of 79-；The 11st electromagnetism of 710-
Valve；The 12nd solenoid valve of 711-；The first accumulator of 8-；The second accumulator of 81-；82- third accumulator；The 4th accumulator of 83-；9-
First overflow valve；The second overflow valve of 91-；92- third overflow valve；The 4th overflow valve of 93-；The 5th overflow valve of 94-；10- hydraulic pump；
11- shut-off valve；12- filter；13- fuel tank.
Specific embodiment
Shown in Fig. 1, an a kind of specific embodiment of the quasi- zero stiffness suspension system of integral axle.Including left vertical
Oil cylinder 41, Right vertical oil cylinder 4, left side cross cylinder 51, right side cross cylinder 5, the first accumulator 8, the second accumulator 81,
Three accumulators 82, the 4th accumulator 83, mounting bracket 3, the first solenoid valve 7, second solenoid valve 71, third solenoid valve the 72, the 4th
Solenoid valve 73, the 5th solenoid valve 74, the 6th solenoid valve 75, the 7th solenoid valve 76, the 8th solenoid valve 77, the 9th solenoid valve 78,
Ten solenoid valves 79, the 11st solenoid valve 710, the 12nd solenoid valve 711, the first damping hole 6, the second damping hole 61, third damping
Hole 62, the 4th damping hole 63, filter 12, hydraulic pump 10, the first overflow valve 9, the second overflow valve 91, third overflow valve 92,
Four overflow valves 93, the 5th overflow valve 94, shut-off valve 11, fuel tank 13 and fluid pressure line.Right vertical oil cylinder 4 and left vertical oil cylinder
41 approximate vertical placements, are primarily subjected to vehicle body vertical load；Right vertical oil cylinder 4 and 41 one end of left vertical oil cylinder pass through bracket
3 and vehicle bridge 1 it is hinged, the other end is hinged by bracket 3 and vehicle frame 2；Right side cross cylinder 5 and left side cross cylinder 51 are the same as vertical oil
The same one end of cylinder is hinged by bracket 3 and vehicle bridge 1, and the other end is hinged by bracket 3 and vehicle frame 2；When vehicle is at equilbrium position,
Right side cross cylinder 5 and 51 level of approximation of left side cross cylinder are placed, and vertical load is not subject to.First accumulator 8 passes through hydraulic
Pipeline is connected by second solenoid valve 71 with the big chamber of left side cross cylinder 51；Second accumulator 81 passes through third by fluid pressure line
Solenoid valve 72 is connected with the big chamber of left vertical oil cylinder 41；Third accumulator 82 is by fluid pressure line by the tenth solenoid valve 79 and the right side
The big chamber of side Vertical Cylinders 4 is connected；4th accumulator 83 is by fluid pressure line by the 11st solenoid valve 710 and right side cross cylinder
5 big chambers are connected；Oil is realized in the effect of second solenoid valve 71, third solenoid valve 72, the tenth solenoid valve 79, the 11st solenoid valve 710
Gas suspension flexibility and rigid state switching.For the first accumulator 8, the second accumulator 81, third accumulator 82 in protection system
With the 4th accumulator 83, the first overflow valve 9, the second overflow valve 91, the are installed between each accumulator is exported fuel tank 13 respectively
Four overflow valves 93 and the 5th overflow valve 94.Fuel tank 13 passes sequentially through filter 12, shut-off valve 11 is connected with 10 import of hydraulic pump, with
Just suspension system is carried out oil-filled.The outlet of hydraulic pump 10 and fuel tank 13 are equipped with third overflow valve 92, to protect hydraulic pump not
It is damaged.The corresponding hydraulic system of right side cross cylinder 5 is drained the oil by the 4th damping hole 63, the realization of the 12nd solenoid valve 711；Right side
The corresponding hydraulic system of Vertical Cylinders 4 is drained the oil by third damping hole 62, the realization of the 9th solenoid valve 78；Left vertical oil cylinder 41 is corresponding
Hydraulic system is drained the oil by the second damping hole 61, the realization of the 4th solenoid valve 73；The corresponding hydraulic system of left side cross cylinder 51 passes through
First damping hole 6, the realization of the first solenoid valve 7 are drained the oil；First damping hole 6, the second damping hole 61, third damping hole 62 and the 4th resistance
The speed of draining the oil of the main function control system hydraulic oil in Buddhist nun hole 63.
Right vertical oil cylinder 4, left vertical oil cylinder 41, right side cross cylinder 5 and left side cross cylinder 51 in Fig. 1 it is small
Chamber is identical with atmosphere.Right vertical oil cylinder 4, left vertical oil cylinder 41, right side cross cylinder 5 and left side cross cylinder 51 it is small
Chamber can also be connected by oil pipe with the big chamber of respective oil cylinder, as shown in Figure 2.For the anti-roll capability for improving vehicle, Right vertical oil
The big chamber of cylinder 4 be connected to by oil pipe with the small chamber of left vertical oil cylinder 41, at the same the small chamber of Right vertical oil cylinder 4 pass through oil pipe and
The big chamber of left vertical oil cylinder 41 is connected to, as shown in Figure 3.
As shown in Figure 1, Right vertical oil cylinder 4, left vertical oil cylinder 41, right side cross cylinder 5 and left side cross cylinder 51
Cylinder barrel it is hinged with vehicle frame 2 simultaneously, cylinder rod is hinged with vehicle bridge 1 simultaneously.As shown in figure 4, Right vertical oil cylinder 4, left vertical
The cylinder barrel of oil cylinder 41, right side cross cylinder 5 and left side cross cylinder 51 can also be hinged with vehicle bridge 1, and cylinder rod and vehicle frame 2 are hinged.
As shown in figure 5, the cylinder barrel of right side cross cylinder 5 and left side cross cylinder 51 and vehicle bridge 1 are hinged, right side cross cylinder 5 and left side
The cylinder rod and vehicle frame 2 of cross cylinder 51 are hinged, and the cylinder barrel and vehicle frame 1 of Right vertical oil cylinder 4 and left vertical oil cylinder 41 are hinged, right
The cylinder rod of side Vertical Cylinders 4 and left vertical oil cylinder 41 and vehicle bridge 1 are hinged；As shown in fig. 6, right side cross cylinder 5 and left side water
The cylinder barrel and vehicle frame 2 of flat oil cylinder 51 are hinged, and the cylinder rod and vehicle bridge 1 of right side cross cylinder 5 and left side cross cylinder 51 are hinged, right side
The cylinder barrel of Vertical Cylinders 4 and left vertical oil cylinder 41 and vehicle bridge 1 are hinged, the cylinder of Right vertical oil cylinder 4 and left vertical oil cylinder 41
Bar and vehicle frame 2 are hinged.
The course of work of the invention are as follows:
(1), suspension normal operating conditions
First solenoid valve 7, the 4th solenoid valve 73, the 5th solenoid valve 74, the 6th solenoid valve 75, the 7th solenoid valve the 76, the 8th
Solenoid valve 77, the 9th solenoid valve 78, the 12nd solenoid valve 711 are closed.It at this time can be by controlling second solenoid valve 71, third electromagnetism
Valve 72, the tenth solenoid valve 79, the 11st solenoid valve 710 realize suspension rigidity and elastic stage switching.
When second solenoid valve 71, third solenoid valve 72, the tenth solenoid valve 79, the 11st solenoid valve 710 are closed at suspension
In rigid state, suspension is without effectiveness in vibration suppression at this time, and such operating condition is mainly used for that suspension load is big and the lower workplace of speed；
When second solenoid valve 71, third solenoid valve 72, the tenth solenoid valve 79, the 11st solenoid valve 710 are opened at suspension
In elastic stage, suspension can give full play to its damping property.When suspension system is in equilbrium position, left side cross cylinder 51 and the right side
When 5 near-horizontal state of cross cylinder of side, length is most short.When being jumped in vehicle bridge 1, Right vertical oil cylinder 4 and left vertical oil
Cylinder 41 is compressed, and the big chamber hydraulic oil of Right vertical oil cylinder 4 flows into third accumulator 82 by fluid pressure line and the tenth solenoid valve 79,
Make 82 pressure rise of third accumulator, while the big chamber hydraulic oil of left vertical oil cylinder 41 passes through fluid pressure line and third solenoid valve 72
The second accumulator 81 is flowed into, 81 pressure rise of the second accumulator is made；Simultaneously when being jumped in vehicle bridge 1, right side cross cylinder 5 and right side
51 length of cross cylinder extends, and big cavity pressure reduces, and the hydraulic oil in the first accumulator 8 passes through second solenoid valve 71 and liquid
The big chamber of pressure pipe flow direction left side cross cylinder 51, the pressure of the first accumulator 8 can reduce at this time, similarly in the 4th accumulator 83
Hydraulic oil flows to the big chamber of right side cross cylinder 5 by the 11st solenoid valve 710 and hydraulic tube, at this time the pressure of the 4th accumulator 83
Power can reduce.Similarly, when vehicle bridge 1 is lower jumps, Right vertical oil cylinder 4 and left vertical oil cylinder 41 are all stretched, big cavity pressure
It all reduces, the hydraulic oil in the second accumulator 81 flows into left vertical oil cylinder 41 greatly by third solenoid valve 72 and fluid pressure line
Chamber, at this time 81 pressure reduction of the second accumulator, while the hydraulic oil in third accumulator 82 pass through the tenth solenoid valve 79 and hydraulic
Pipeline flows into the big chamber of Right vertical oil cylinder 4, at this time 82 pressure reduction of third accumulator；When vehicle bridge 1 is lower jumps, right side cross cylinder
5 and 51 length of left side cross cylinder also extend, big cavity pressure all reduces, and big cavity pressure reduces, the liquid in the first accumulator 8
Pressure oil is by second solenoid valve 71 and the hydraulic tube flow direction left side big chamber of cross cylinder 51, and the pressure of the first accumulator 8 can drop at this time
Low, similarly the hydraulic oil in the 4th accumulator 83 is big by the 11st solenoid valve 710 and hydraulic tube flow direction right side cross cylinder 5
Chamber, the pressure of the 4th accumulator 83 can reduce at this time.
(2), the oil-filled state of suspension system
First solenoid valve 7, the 4th solenoid valve 73, the 9th solenoid valve 78, the 12nd solenoid valve 711 are turned off, and are ended simultaneously
Valve 19 is opened.
8th solenoid valve 77 and the tenth solenoid valve 79 are opened, and 10 outlet hydraulic oil of hydraulic pump passes through the 8th under pressure
Solenoid valve 77, section hydraulic oil stream enter the big chamber of Right vertical oil cylinder 4, and section hydraulic oil flows into third by the tenth solenoid valve 79 and stores
Energy device 82, makes 82 pressure rise of third accumulator, and it is oil-filled that the hydraulic system being connected to Right vertical oil cylinder 4 can be realized.
7th solenoid valve 76 and the 11st solenoid valve 710 are opened, and 10 outlet hydraulic oil of hydraulic pump passes through under pressure
7th solenoid valve 76, section hydraulic oil stream enter the right side big chamber of cross cylinder 5, and section hydraulic oil is flowed by the 11st solenoid valve 710
Enter the 4th accumulator 83, make 83 pressure rise of the 4th accumulator, the hydraulic system being connected to right side cross cylinder 5 can be realized and fill
Oil.
Third solenoid valve 72 and the 5th solenoid valve 74 are opened, and 10 outlet hydraulic oil of hydraulic pump passes through the 5th under pressure
Solenoid valve 74, section hydraulic oil stream enter the big chamber of left vertical oil cylinder 41, and section hydraulic oil flows into second by third solenoid valve 72
Accumulator 81 makes 81 pressure rise of the second accumulator, and it is oil-filled that the hydraulic system being connected to left vertical oil cylinder 41 can be realized.
Second solenoid valve 71 and the 6th solenoid valve 75 are opened, and 10 outlet hydraulic oil of hydraulic pump passes through the 6th under pressure
Solenoid valve 75, section hydraulic oil stream enter the left side big chamber of cross cylinder 51, and section hydraulic oil flows into first by second solenoid valve 71
Accumulator 8 makes 8 pressure rise of the first accumulator, and it is oil-filled that the hydraulic system being connected to left side cross cylinder 51 can be realized.
(3), suspension system is drained the oil state
5th solenoid valve 74, the 6th solenoid valve 75, the 7th solenoid valve 76, the 8th solenoid valve 77 are turned off.
9th solenoid valve 78 and the tenth solenoid valve 79 are opened, and 82 hydraulic oil of third accumulator passes sequentially through under pressure
Tenth solenoid valve 79, third damping hole 62 and the 9th solenoid valve 78 flow into fuel tank 13, make 82 pressure reduction of third accumulator
Realize that the hydraulic system being connected to Right vertical oil cylinder 4 is drained the oil.
11st solenoid valve 710 and the 12nd solenoid valve 711 are opened, 83 hydraulic oil of the 4th accumulator under pressure according to
Secondary the 11st solenoid valve 710, the 4th damping hole 63 and the 12nd solenoid valve 711 of passing through flows into fuel tank 13, makes the 4th accumulator 83
Pressure reduction can be realized the hydraulic system being connected to right side cross cylinder 5 and drain the oil.
Third solenoid valve 72 and the 4th solenoid valve 73 are opened, and 81 hydraulic oil of the second accumulator passes sequentially through under pressure
Third solenoid valve 72, the second damping hole 61 and the 4th solenoid valve 73 flow into fuel tank 13, make 81 pressure reduction of the second accumulator
Realize that the hydraulic system being connected to left vertical oil cylinder 41 is drained the oil.
First solenoid valve 7 and second solenoid valve 71 are opened, and 8 hydraulic oil of the first accumulator passes sequentially through the under pressure
Two solenoid valves 71, the first damping hole 6 and the first solenoid valve 7 flow into fuel tank 13, make 8 pressure reduction of the first accumulator, can be realized
The hydraulic system being connected to left side cross cylinder 51 is drained the oil.
By can adjust the first accumulator 8, the second accumulator 81, third accumulator to the oil-filled of suspension system and draining the oil
82 and the 4th accumulator 83 pressure, and then adjust suspension system rigidity, as long as relevant parameter Proper Match is between accumulator
The quasi- zero stiffness characteristic of suspension system can be achieved.
The main function protection first of first overflow valve 9, the second overflow valve 91, the 4th overflow valve 93 and the 5th overflow valve 94
Accumulator 8, the second accumulator 81, third accumulator 82 and the 4th accumulator 83 and its hydraulic system, when energy storage pressure is excessively high,
It sets and limits more than overflow valve, the hydraulic oil in accumulator can flow into fuel tank 13 by corresponding overflow valve.Third overflow valve 92
Main function protection hydraulic pump 10 and its hydraulic system, when hydraulic pump outlet hypertonia is more than the setting limit of third overflow valve 92
System, the hydraulic oil that hydraulic pump 10 exports can flow into fuel tank 13 by third overflow valve 92.
A kind of hydro-pneumatic suspension system based on the quasi- zero stiffness for being suitable for integral axle is present embodiments provided, it can be real
Existing suspension system improves the ride performance of vehicle in the quasi- zero stiffness of equilbrium position.
Claims (4)
1. a kind of quasi- zero stiffness suspension system of integral axle, it is characterised in that: hang down including left vertical oil cylinder (41), right side
Straight oil cylinder (4), left side cross cylinder (51), right side cross cylinder (5), the first accumulator (8), the second accumulator (81), third
Accumulator (82), the 4th accumulator (83), mounting bracket (3), the first solenoid valve (7), second solenoid valve (71), third solenoid valve
(72), the 4th solenoid valve (73), the 5th solenoid valve (74), the 6th solenoid valve (75), the 7th solenoid valve (76), the 8th solenoid valve
(77), the 9th solenoid valve (78), the tenth solenoid valve (79), the 11st solenoid valve (710), the 12nd solenoid valve (711), the first resistance
Buddhist nun hole (6), the second damping hole (61), third damping hole (62), the 4th damping hole (63), filter (12), hydraulic pump (10),
One overflow valve (9), the second overflow valve (91), third overflow valve (92), the 4th overflow valve (93), the 5th overflow valve (94), cut-off
Valve (11), fuel tank (13) and fluid pressure line；Right vertical oil cylinder (4) and left vertical oil cylinder (41) vertical placement, Right vertical
Oil cylinder (4) and left vertical oil cylinder (41) one end pass through bracket (3) and vehicle bridge (1) hingedly, and the other end passes through bracket (3) and vehicle frame
(2) hinged；Right side cross cylinder (5) and left side cross cylinder (51) one end pass through bracket (3) and vehicle bridge (1) hingedly, the other end
It is hinged by bracket (3) and vehicle frame (2)；When vehicle is at equilbrium position, right side cross cylinder (5) and left side cross cylinder (51)
Level of approximation is placed, and vertical load is not subject to；First accumulator (8) passes through second solenoid valve (71) and left side by fluid pressure line
The big chamber of cross cylinder (51) is connected；Second accumulator (81) is by fluid pressure line by third solenoid valve (72) and left vertical oil
The big chamber of cylinder (41) is connected；Third accumulator (82) is by fluid pressure line by the tenth solenoid valve (79) and Right vertical oil cylinder (4)
Big chamber is connected；4th accumulator (83) is by fluid pressure line by the 11st solenoid valve (710) and right side cross cylinder (5) big chamber
It is connected；The effect of second solenoid valve (71), third solenoid valve (72), the tenth solenoid valve (79), the 11st solenoid valve (710) is realized
Hydro pneumatic suspension elasticity and rigid state switching；Respectively the first accumulator (8), the second accumulator (81), third accumulator (82),
The first overflow valve (9), the second overflow valve (91), the 4th overflow valve are installed between the outlet and fuel tank (13) of 4th accumulator (83)
(93) and the 5th overflow valve (94)；Fuel tank (13) passes sequentially through filter (12), shut-off valve (11) and hydraulic pump (10) import phase
Even, oil-filled to be carried out to suspension system；The outlet and fuel tank (13) of hydraulic pump (10) are equipped with third overflow valve (92)；Right side
The corresponding hydraulic system of cross cylinder (5) is drained the oil by the 4th damping hole (63), the realization of the 12nd solenoid valve (711)；Right vertical
The corresponding hydraulic system of oil cylinder (4) is drained the oil by third damping hole (62), the realization of the 9th solenoid valve (78)；Left vertical oil cylinder (41)
Corresponding hydraulic system is drained the oil by the second damping hole (61), the realization of the 4th solenoid valve (73)；Left side cross cylinder (51) corresponds to liquid
Pressure system is drained the oil by the first damping hole (6), the first solenoid valve (7) realization；First damping hole (6), the second damping hole (61),
The speed of draining the oil of the main function control system hydraulic oil of three damping holes (62) and the 4th damping hole (63).
2. a kind of quasi- zero stiffness suspension system of integral axle according to claim 1, it is characterised in that: the right side
Side Vertical Cylinders (4), left vertical oil cylinder (41), the small chamber of right side cross cylinder (5) and left side cross cylinder (51) are and big
Gas phase is same.
3. a kind of quasi- zero stiffness suspension system of integral axle according to claim 1, it is characterised in that: the right side
Side Vertical Cylinders (4), left vertical oil cylinder (41), right side cross cylinder (5) and left side cross cylinder (51) small chamber pass through oil
Pipe is connected with the big chamber of respective oil cylinder.
4. a kind of quasi- zero stiffness suspension system of integral axle according to claim 1, it is characterised in that: Right vertical
The big chamber of oil cylinder (4) is connected to by oil pipe with the small chamber of left vertical oil cylinder (41), and the small chamber of Right vertical oil cylinder (4) passes through oil
Pipe is connected to the big chamber of left vertical oil cylinder (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108765.7A CN107696819B (en) | 2017-11-11 | 2017-11-11 | The quasi- zero stiffness suspension system of integral axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108765.7A CN107696819B (en) | 2017-11-11 | 2017-11-11 | The quasi- zero stiffness suspension system of integral axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107696819A CN107696819A (en) | 2018-02-16 |
| CN107696819B true CN107696819B (en) | 2018-12-21 |
Family
ID=61179867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711108765.7A Active CN107696819B (en) | 2017-11-11 | 2017-11-11 | The quasi- zero stiffness suspension system of integral axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107696819B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857544A (en) * | 2011-10-06 | 2014-06-11 | 宝马股份公司 | Vehicle wheel suspension with a hydraulic vibration damper |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1249222B (en) * | 1991-02-22 | 1995-02-21 | Belotti Spa | CRANE |
| JPH1178465A (en) * | 1997-09-10 | 1999-03-23 | Nissan Motor Co Ltd | Roll stiffness control device |
| DE10337601A1 (en) * | 2003-08-16 | 2005-03-10 | Deere & Co | Hydropneumatic suspension device |
| US10272733B2 (en) * | 2005-12-22 | 2019-04-30 | Suspension Systems Technologies, Llc | Method and apparatus for a pneumatically sprung caster mechanism |
| CN201856597U (en) * | 2010-08-26 | 2011-06-08 | 长沙中联重工科技发展股份有限公司 | Suspension valve, hydro-pneumatic suspension system and engineering vehicle |
| CN102019834A (en) * | 2010-12-10 | 2011-04-20 | 徐州重型机械有限公司 | Wheel crane and suspension hydraulic system thereof |
| CN207374053U (en) * | 2017-11-11 | 2018-05-18 | 吉林大学 | The quasi- zero stiffness suspension system of integral axle |
-
2017
- 2017-11-11 CN CN201711108765.7A patent/CN107696819B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857544A (en) * | 2011-10-06 | 2014-06-11 | 宝马股份公司 | Vehicle wheel suspension with a hydraulic vibration damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107696819A (en) | 2018-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107672402B (en) | The suspension system of quasi- zero stiffness based on hydro pneumatic suspension | |
| CN208778564U (en) | A kind of liquid gas support damping device and the vehicle using this liquid gas support damping device | |
| CN201647855U (en) | Crane and hydraulic control system for single-cylinder bolt type telescopic mechanism thereof | |
| CN107116985A (en) | A kind of big stroke suspension system for multi-axle heavy type vehicle | |
| CN112009193B (en) | Anti adjustable oil gas suspension hydraulic system that heels | |
| CN109050192B (en) | Hydro-pneumatic suspension and active suspension switching control loop | |
| CN201932886U (en) | Floating and locking device for swing axle of aerial working platform | |
| CN207374053U (en) | The quasi- zero stiffness suspension system of integral axle | |
| CN111301084A (en) | Hydro-pneumatic suspension system, vehicle and control method of hydro-pneumatic suspension system | |
| CN207360015U (en) | A kind of hydro-pneumatic suspension system of the quasi- zero stiffness in achievable equilbrium position | |
| CN102094927B (en) | Integral type pneumatic spring with controllable third-level damp and adaptive second-level stiffness | |
| CN201670158U (en) | Wrecker with buffering and following functions | |
| CN202507887U (en) | Variable damping oil gas suspension system and crane | |
| CN107696819B (en) | The quasi- zero stiffness suspension system of integral axle | |
| CN109515100A (en) | The control method of hydro-pneumatic suspension system, vehicle and hydro-pneumatic suspension system | |
| CN207374052U (en) | A kind of quasi- zero stiffness hydro-pneumatic suspension system suitable for integral axle | |
| CN107116986B (en) | A kind of big stroke adjustment system of bodywork height for multi-axle heavy type vehicle | |
| CN107696818A (en) | A kind of hydro-pneumatic suspension system of the quasi- zero stiffness in achievable equilbrium position | |
| CN101949397A (en) | Balanced valve bank of derricking cylinder system | |
| CN207360017U (en) | The suspension system of quasi- zero stiffness based on hydro pneumatic suspension | |
| CN107672400B (en) | A kind of quasi- zero stiffness hydro-pneumatic suspension system suitable for integral axle | |
| RU71298U1 (en) | HYDRO-PNEUMATIC SUSPENSION OF A VEHICLE | |
| CN202520680U (en) | Novel direct-acting overflow valve | |
| CN103879257A (en) | Suspension valves, oil gas suspension control system and engineering vehicle | |
| CN208634264U (en) | EMU oil-pressure damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |