CN108644165B - A kind of emergency management and rescue vehicle mass center adjustment hydraulic control system - Google Patents
A kind of emergency management and rescue vehicle mass center adjustment hydraulic control system Download PDFInfo
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- CN108644165B CN108644165B CN201810441395.7A CN201810441395A CN108644165B CN 108644165 B CN108644165 B CN 108644165B CN 201810441395 A CN201810441395 A CN 201810441395A CN 108644165 B CN108644165 B CN 108644165B
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- Prior art keywords
- shuttle valve
- valve
- leveling
- way magnetic
- oil cylinder
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
- B62D37/04—Stabilising vehicle bodies without controlling suspension arrangements by means of movable masses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
A kind of emergency management and rescue vehicle mass center adjustment hydraulic control system, it is mainly: respectively setting a hanging oil cylinder near the angle of vehicle chassis bottom surface four, two leveling cyclinders for presenting lower horizontal right-angled intersection are set in the middle part of vehicle chassis bottom surface again, each leveling cyclinder two sides rod respectively connects a leveling mass block, each leveling cyclinder is connected with two branches arranged side by side, leveling cyclinder is connected with two two-position three way magnetic valves respectively in each branch, its normally closed port is connected with the outlet of the same shuttle valve again, and each two entrance of shuttle valve is connected with two hanging oil cylinders respectively；Two entrances of one shuttle valve are connected with a hanging oil cylinder of another leveling cyclinder two roads arranged side by side respectively, and two outlets of another shuttle valve are connected with the remaining hanging oil cylinder in another leveling cyclinder two roads arranged side by side.The present invention can carry out all directions real-time compound adjustment automatically all around to centroid position, guarantee vehicle driving safety.
Description
Technical field
The present invention relates to a kind of vehicle active safety control system, especially emergency management and rescue vehicle mass centers to adjust hydraulic control
System.
Background technique
Because of cross-country run road bump and caused by travelling acceleration and deceleration, vehicle centroid position frequently changes emergency management and rescue vehicle,
Seriously affect vehicle safety and ride performance.Therefore, vehicle centroid position adjusts in time, to raising vehicle safety
It is of great significance with comfort is improved.
Emergency management and rescue vehicle loading capacity is big and driving cycle is complicated, therefore keeping mass center is steadily the premise of driving safety.
It is entitled " a kind of Location of Mass Center of Automobiles adjusts device and its control method " for a patent of Location of Mass Center of Automobiles research at present
(application No. is: 201710831431.6), although kart centroid position can be adjusted preferably, the program is for weight
The emergency management and rescue vehicle for carrying engineering truck especially cross-country run, there are adjustment mechanism responses not in time, and centroid position adjusts stagnant
Problem afterwards.
Emergency management and rescue vehicle generally uses hydraulic-driven suspension.According to Pascal's law, the hydraulic suspension of each connection
Frame pressure is identical, and when centroid position variation, a lateral load, which increased dramatically, may cause another lateral pressure and sharply decline, this is serious
Affect vehicle drive safety and comfort.Such as a kind of patent " energy saving fork truck that center of gravity can adjust " (number of patent application
201611212188.1) to propose that a counterweight chamber is arranged at fork truck vehicle body rear, pass through the side of mass in replacement counterweight chamber
Formula artificially changes vehicle's center of gravity, and the invention is although simple and effective, but is not suitable for remote traveling and needs, and cannot achieve automatic
Adjust vehicle centroid position.Another patent " gravity centre adjustment mechanism for spreader " (number of patent application 200810154994.7) proposes
One kind disposing pressure sensor on crawler belt, and acquisition forms controller signals with ground pressure, with Hydraulic Cylinder quality
The mobile gravity centre adjustment mechanism of block, the invention can only change position of centre of gravity on vehicle heading, when the centre-of gravity shift of left and right without
Method adjusts mass center, and needs more pressure sensor.
Summary of the invention
It is an object of that present invention to provide a kind of all directions real-time compound adjustment automatically all around can be carried out to centroid position,
Guarantee that the emergency management and rescue vehicle mass center of vehicle driving safety adjusts hydraulic control system.
The present invention in order to achieve the above objectives, adopts the following technical scheme that
The present invention is that there are four the vehicle of hanging oil cylinder, mating two leveling cyclinders, four leveling mass blocks, four based on tool
A shuttle valve and eight two-position three way magnetic valves.Specifically: respectively setting a hanging oil cylinder near the angle of vehicle chassis bottom surface four, again
Two leveling cyclinders for presenting lower horizontal right-angled intersection are set in the middle part of vehicle chassis bottom surface, and each leveling cyclinder two sides rod is each
Connect a leveling mass block.Wherein, center line and driving direction leveling cyclinder in the same direction are connected with two branches arranged side by side, each
Two oil pockets of leveling cyclinder are connected with two two-position three way magnetic valves respectively in branch, two two-position three way magnetic valves it is normal
It opens mouth and respectively takes back fuel tank and normally closed port and be connected again with the outlet of the same shuttle valve, each two entrance of shuttle valve is hung with two respectively
Oil cylinder is connected；Equally, the center line leveling cyclinder vertical with driving direction is also connected with two branches arranged side by side, adjusts in each branch
Two oil pockets of flat oil cylinder are connected with two two-position three way magnetic valves respectively, and the normally opened port of two two-position three way magnetic valves is each
Be connected again with the outlet of the same shuttle valve from fuel tank and normally closed port is taken back, two entrances of one shuttle valve are oily with another leveling respectively
One hanging oil cylinder of cylinder two roads arranged side by side is connected, two outlets of another shuttle valve and another leveling cyclinder two branch arranged side by side
A upper remaining hanging oil cylinder is connected.
The invention has the following advantages over the prior art:
1, vehicle on the way travels, and when sidesway does not occur for mass center, pressure is the same in side-by-side mounting oil cylinder, and hanging oil cylinder is not
High pressure oil is exported, leveling cyclinder does not move, and mass center adjustment mechanism is remain stationary.
2, when mass center sidesway, pressure is different in vehicle side-by-side mounting oil cylinder, by the oil of the big side hanging oil cylinder of pressure
Liquid guides to leveling cyclinder side, and leveling cyclinder piston rod is driven to drive reverse movement of the mass block to centroid motion.
3, mass block moves backward, the same to pressure in side-by-side mounting oil cylinder, and vehicle centroid is completed to readjust, and does not have at this time
There is pressure oil to drive leveling cyclinder, leveling cyclinder is so far static, and vehicle centroid is adjusted in place and keeps stable.
4, the direction all around that this emergency management and rescue vehicle mass center adjustment mechanism can be realized vehicle centroid is adjusted automatically, in real time
It is whole, and structure is simple, it is reliable and practical, it is particularly suitable for emergency management and rescue vehicle heavy-load and long-distance traveling and needs, improves safety and relax
Adaptive.
Detailed description of the invention
Fig. 1 be the present invention be mounted on vehicle chassis bottom surface look up simplified schematic diagram；
Fig. 2 is hydraulic control system connection relationship simplified schematic diagram of the present invention；
Fig. 3 is two-position three way magnetic valve port mark figure in Fig. 2；
Fig. 4 is present invention leveling cyclinder adjustment direction simplified schematic diagram in vehicle centroid difference offset direction.
In figure, 1. shuttle valve A, 2. hanging oil cylinder A, 3. two-position three way magnetic valve A, 4. two-position three way magnetic valve B, 5. are leveled
Oil cylinder A, 6. leveling mass block A, 7. leveling mass block B, 8. two-position three way magnetic valve C, 9. two-position three way magnetic valve D, 10. hang
Oil cylinder B, 11. shuttle valve B, 12. hanging oil cylinder C, 13. level mass block C, 14. two-position three way magnetic valve E, 15. two-position three ways electricity
Magnet valve F, 16. shuttle valve C, 17. shuttle valve D, 18. two-position three way magnetic valve G, 19. leveling cyclinder B, 20. two-position three way magnetic valve H,
21. leveling mass block D, 22. hanging oil cylinder D, 23. valve platforms, 24. controllers, the normally closed port of X., the normally opened port of Y., Z. often connected
Mouthful.
Specific embodiment
A specific embodiment of the invention is described further in the following with reference to the drawings and specific embodiments.
Emergency management and rescue vehicle mass center adjustment hydraulic control system shown in Fig. 1 is mounted on looking up for vehicle chassis bottom surface and shows
It anticipates in schematic diagram, respectively sets hanging oil cylinder A2, B10, C12, a D22 near the angle of vehicle chassis bottom surface four, and in vehicle chassis
Two center lines for presenting lower horizontal right-angled intersection of setting and leveling cyclinder A5 and center line that driving direction is in the same direction in the middle part of bottom surface
The leveling cyclinder B19 vertical with driving direction, each leveling cyclinder two sides rod respectively connect a leveling mass block, wherein in
Heart line and driving direction leveling cyclinder in the same direction are connected with leveling mass block A1 and B7, the center line tune vertical with driving direction respectively
Flat oil cylinder is connected with leveling mass block C13 and D21 respectively.All two-position three way magnetic valves and shuttle valve concentrate in valve platform 23 and with
Controller 24 is connected.
In hydraulic control system connection relationship simplified schematic diagram of the present invention shown in Fig. 2, hanging oil cylinder B10 and hanging oil cylinder
C12 is respectively connected to two entrances of shuttle valve B11, and the outlet shuttle valve B11 is respectively connected to two-position three way magnetic valve C8 and two-position three-way electromagnetic
The normal connection mouth Z of the normally closed port X, two-position three way magnetic valve C8 and two-position three way magnetic valve D9 of valve D9 are respectively connected to leveling oil
The normally opened port Y of two chambers of cylinder A5, two-position three way magnetic valve C8 and two-position three way magnetic valve D9 take back fuel tank.Hanging oil cylinder A2 with
Hanging oil cylinder D22 is respectively connected to two entrances of shuttle valve A1, and the outlet shuttle valve A1 is respectively connected to two-position three way magnetic valve A3 and two three
The normal connection mouth Z of the normally closed port X, two-position three way magnetic valve A3 and two-position three way magnetic valve B4 of three-way electromagnetic valve B4 are respectively connected to adjust
The normally opened port Y of two chambers of flat oil cylinder A5, two-position three way magnetic valve A3 and two-position three way magnetic valve B4 take back fuel tank.Hanging oil cylinder
B10 and hanging oil cylinder A2 are respectively connected to two entrances of shuttle valve C16, the outlet shuttle valve C16 be respectively connected to two-position three way magnetic valve F15 and
The normal connection mouth Z of the normally closed port X, two-position three way magnetic valve F15 and two-position three way magnetic valve G18 of two-position three way magnetic valve G18
It is respectively connected to two chambers of leveling cyclinder B19, the normally opened port Y of two-position three way magnetic valve F15 and two-position three way magnetic valve G18 take back
Fuel tank.Hanging oil cylinder C12 and hanging oil cylinder D22 is respectively connected to two entrances of shuttle valve D17, and the outlet shuttle valve D17 is respectively connected to two
The normally closed port X of three-way magnetic valve E14 and two-position three way magnetic valve H20, two-position three way magnetic valve E14 and two-position three way magnetic valve
The normal connection mouth Z of H20 is respectively connected to two chambers of leveling cyclinder B19, two-position three way magnetic valve E14 and two-position three way magnetic valve H20
Normally opened port Y take back fuel tank.
The course of work of the invention is sketched in conjunction with attached drawing 2,3,4 and following table one:
For when centroid motion is to hanging oil cylinder B10, that is, vehicle left rear side, the two-position three way electricity of controller control at this time
Magnet valve A3, C8, E14, F15 obtain electric, and pressure in hanging oil cylinder B10 is greater than the pressure in hanging oil cylinder C12, hanging oil cylinder B10
Interior pressure oil enters 5 rear side oil pocket of leveling cyclinder by shuttle valve B11, two-position three way magnetic valve C8, at this time two-position three-way electromagnetic
Valve A3 obtains electric, because the reversed cut-off of shuttle valve A1 acts on, high-voltage oil liquid is without two-position three way magnetic valve A3 oil return box, oil outlet chamber
The port Z oil return box of two-position three way magnetic valve B4, D9 are connected, pressure oil is pushed with the piston rod of mass block A6, B7 to front side
Movement；The pressure in hanging oil cylinder B10 is greater than the pressure oil in the pressure hanging oil cylinder B10 in hanging oil cylinder A2 and passes through shuttle simultaneously
Oil pocket on the left of valve C16, two-position three way magnetic valve F15 leveling cyclinder B19, two-position three way magnetic valve E14 is obtained electric at this time, because of shuttle
The reversed cut-off of valve D17 acts on, and high-voltage oil liquid connects two-position three way without two-position three way magnetic valve E14 oil return box, oil outlet chamber
The port Z oil return box of solenoid valve G18, H20, promotion move to the right with the piston rod of mass block C13, D21, until each outstanding
It is the same namely when mass center is in middle position again to hang pressure in oil cylinder, all solenoid valve power loss, leveling cyclinder stop motion,
Vehicle centroid keeps stablizing；
For when centroid motion is to hanging oil cylinder A2, D22 side, that is, vehicle right side, controller controls two three at this time
Three-way electromagnetic valve G18, H20 obtain electric, and pressure in hanging oil cylinder D22 is greater than the pressure in hanging oil cylinder C12, in hanging oil cylinder D22
Pressure oil enter oil pocket on the right side of leveling cyclinder B19 by shuttle valve D17, two-position three way magnetic valve H20, oil outlet chamber connects two three
The normal connection mouth Z oil return box of three-way electromagnetic valve E14, F15, pressure oil promotion are transported to the left with the piston rod of mass block C13, D21
It is dynamic；The pressure in hanging oil cylinder A2 is greater than the pressure in hanging oil cylinder B10 simultaneously, and the pressure oil in hanging oil cylinder A2 passes through shuttle valve
C16, two-position three way magnetic valve G18 enter oil pocket on the right side of leveling cyclinder B19, and oil outlet chamber connects two-position three way magnetic valve E14, F15
Normal connection mouth Z oil return box, promotion moves to the left with the piston rod of mass block C13, D21, until each hanging oil cylinder internal pressure
When strong the same namely mass center is in middle position again, all solenoid valve power loss, leveling cyclinder stop motion, vehicle centroid guarantor
It is fixed to keep steady.
The case where other centroid positions deviate, it is similar with above-mentioned two example adjustment process that mass center adjusts process.
Table 1:
"+", which represents electromagnet and obtains electric "-", represents electromagnet power loss.
Claims (1)
1. a kind of emergency management and rescue vehicle mass center adjusts hydraulic control system, it is characterised in that: attached at the angle of vehicle chassis bottom surface four
A hanging oil cylinder is respectively closely set, and two leveling cyclinders for presenting lower horizontal right-angled intersection are set in the middle part of vehicle chassis bottom surface,
Each leveling cyclinder two sides rod respectively connects a leveling mass block, wherein center line and driving direction leveling cyclinder in the same direction
Two branches arranged side by side are connected with, two oil pockets of leveling cyclinder are respectively connected with a two-position three way magnetic valve in each branch,
The normally opened port of two two-position three way magnetic valves in one of branch respectively takes back fuel tank and normally closed port and the same shuttle
The outlet valve A is connected, and two entrance of shuttle valve A is connected with two hanging oil cylinders A, D, two in another branch two-position three way magnetic valve
Normally opened port respectively takes back fuel tank and normally closed port is connected with the outlet the same shuttle valve B, two entrance of shuttle valve B and hanging oil cylinder B, C
It is connected；Equally, the center line leveling cyclinder vertical with driving direction is also connected with two branches arranged side by side, levels oil in each branch
Two oil pockets of cylinder are respectively connected with a two-position three way magnetic valve, two in one of branch two-position three way magnetic valve
Normally opened port respectively takes back fuel tank and normally closed port is connected with the outlet the same shuttle valve C, and two in another branch two three
The normally opened port of three-way electromagnetic valve respectively takes back fuel tank and the outlet normally closed port and the same shuttle valve D is connected, two entrances of shuttle valve C and
Two hanging oil cylinders A, B are connected, two entrances of another shuttle valve D are connected with two hanging oil cylinders C, D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441395.7A CN108644165B (en) | 2018-05-10 | 2018-05-10 | A kind of emergency management and rescue vehicle mass center adjustment hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441395.7A CN108644165B (en) | 2018-05-10 | 2018-05-10 | A kind of emergency management and rescue vehicle mass center adjustment hydraulic control system |
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| CN108644165A CN108644165A (en) | 2018-10-12 |
| CN108644165B true CN108644165B (en) | 2019-09-10 |
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| CN201810441395.7A Active CN108644165B (en) | 2018-05-10 | 2018-05-10 | A kind of emergency management and rescue vehicle mass center adjustment hydraulic control system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559726B (en) * | 2020-05-28 | 2021-10-08 | 浙江鲁创电力科技有限公司 | Construction and overhaul platform for overhead power line and high-speed rail contact network |
| CN113060218B (en) * | 2021-03-31 | 2023-01-06 | 上海寻序人工智能科技有限公司 | Vehicle balancing unit for road transportation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033761C1 (en) * | 1990-10-24 | 1992-04-02 | Hydac Technology Gmbh, 6603 Sulzbach, De | |
| DE102006023603B4 (en) * | 2006-05-19 | 2011-03-03 | Ulrich, Alfred, Prof. Dr. | Device and method for compensating a dynamic yawing moment |
| CN101392491B (en) * | 2008-10-31 | 2010-04-21 | 镇江华晨华通路面机械有限公司（中外合资） | Gravity centre adjustment mechanism for spreader |
| CN103552614B (en) * | 2013-10-30 | 2016-01-27 | 浙江吉利控股集团有限公司 | A kind of device changing centre of gravity of vehicle |
| RU2566801C1 (en) * | 2014-09-30 | 2015-10-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Горский государственный аграрный университет" | Device for vehicle carcass automatic levelling in horizon |
| CN205478607U (en) * | 2016-01-08 | 2016-08-17 | 徐州重型机械有限公司 | Axle balance control system and high altitude construction car |
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