CN110285107A - A kind of the passive type control valve group and thrust wheel system of thrust wheel - Google Patents
A kind of the passive type control valve group and thrust wheel system of thrust wheel Download PDFInfo
- Publication number
- CN110285107A CN110285107A CN201910706086.2A CN201910706086A CN110285107A CN 110285107 A CN110285107 A CN 110285107A CN 201910706086 A CN201910706086 A CN 201910706086A CN 110285107 A CN110285107 A CN 110285107A
- Authority
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- China
- Prior art keywords
- thrust wheel
- branch
- solenoid valve
- cavity
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000012876 topography Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/104—Suspension devices for wheels, rollers, bogies or frames
- B62D55/112—Suspension devices for wheels, rollers, bogies or frames with fluid springs, e.g. hydraulic pneumatic
- B62D55/1125—Hydro-pneumatic or pneumatic, e.g. air-cushioned
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
Landscapes
- 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
The invention discloses a kind of passive type control valve group of thrust wheel and thrust wheel systems, including the first solenoid valve, second solenoid valve, third solenoid valve, hydraulic control one-way valve and accumulator；The connection branch road of two cavities of thrust wheel oil cylinder size is arranged in first solenoid valve；Second solenoid valve and third solenoid valve respectively correspond on the branch road of branch and small cavity that the big cavity of thrust wheel oil cylinder is arranged in；A hydraulic control one-way valve is also respectively set in the branch of big cavity and the branch road of small cavity；The branch of big cavity also sets up accumulator.The valve group had both been able to achieve the forming movement with topography variation of the idler wheel of thrust wheel；Again can be when vehicle body roll, pressure change caused by volume when being forced compression using thrust wheel oil cylinder is changed plays Zhi Chongzuo and uses, and prevents vehicle body from excessively rolling.The control valve group had not only adapted to greening vehicle while having travelled, the working condition requirement of operation, but also can passively improve whole vehicle stability, simple, reliable, safe.
Description
Technical field
The present invention relates to greening vehicular fields, more particularly to a kind of for afforesting the thrust wheel control valve group of vehicle.This
Outside, the invention further relates to a kind of thrust wheel control methods including above-mentioned thrust wheel control valve group.
Background technique
Greening vehicle works normally, and needs to trim operation in traveling.Such working condition, cantilever crane expansion carry out trimming or
When person's pavement roughness, vehicle roll unbalance loading is inevitably caused, this will affect its stability.
In order to solve this stability problem, increase a kind of thrust wheel system of auxiliary belt idler wheel, be both able to achieve idler wheel with
The forming movement of topography variation, and can play Zhi Chongzuo when vehicle body rolls with preventing vehicle body from excessively rolling, be a kind of convenience
The solution of acquisition.
And under supporting leg of existing engineering machinery, such as crane, pump truck, fire fighting truck etc., typically supporting leg stretch out later
The fixed carrying operation of dress.Existing technology, cannot be directly used to greening vehicle.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, a kind of control of thrust wheel oil cylinder is provided
Valve group and thrust wheel system may be implemented the working condition requirement of vehicle while traveling and operation, be passively adjusted, and it is steady to improve vehicle
It is qualitative.
Be to solve above-mentioned thrust wheel with Che Yundong and play the technical problem of branch weight, the present invention the following technical schemes are provided:
A kind of passive type control valve group of thrust wheel, which is characterized in that including the first solenoid valve, second solenoid valve, third electromagnetism
Valve, hydraulic control one-way valve and accumulator；
The connection branch road of two cavities of thrust wheel oil cylinder size is arranged in first solenoid valve；
Second solenoid valve and third solenoid valve respectively correspond the branch of branch and small cavity that the big cavity of thrust wheel oil cylinder is arranged in
On；
A hydraulic control one-way valve is also respectively set in the branch of big cavity and the branch road of small cavity；
The branch of big cavity also sets up accumulator.
Further, a throttle orifice is also respectively set in the branch of the branch of big cavity and small cavity road.
Further, the branch of the branch of big cavity or small cavity road also sets up an overflow valve.
Further, when the first solenoid valve powers off, two cavities of size are cut to two single chambers.
Further, two single chambers are controlled by second solenoid valve and third solenoid valve respectively.
Further, two hydraulic control one-way valves of the branch road of the branch of big cavity and small cavity close off thrust wheel oil
The large and small cavity of cylinder.
Further, when the first solenoid valve charges, connection two cavities of size become a cavity.
Further, the appearance after two hydraulic control one-way valve closed communications of the branch road of the branch of big cavity and small cavity
Chamber.
A kind of thrust wheel system, which is characterized in that the thrust wheel as described in any one of claim 1 to claim
Passive type control valve group controlled.
Further, at least side of vehicle, including supporting leg, thrust wheel oil cylinder and thrust wheel are set；Supporting leg passes through branch
The driving of roller oil cylinder is realized flexible；Thrust wheel is arranged in supporting leg bottom, can contact with ground surface formula.
Advantageous effects of the invention:
The present invention relates to a kind of thrust wheel control valve groups that can be used for greening vehicle.The valve group had both been able to achieve the idler wheel of thrust wheel
With the forming movement of topography variation；Again can be when vehicle body roll, volume when being forced compression using thrust wheel oil cylinder is changed
Caused pressure change plays Zhi Chongzuo and uses, and prevents vehicle body from excessively rolling.
The control valve group had not only adapted to greening vehicle while having travelled, the working condition requirement of operation, but also can passively improve whole vehicle stability,
It is simple, reliable, safe.
Detailed description of the invention
Fig. 1 thrust wheel system；
Fig. 2 control valve group schematic diagram；
In figure, 3.1~3.2- solenoid valve；3.3~3.4- hydraulic control one-way valve；3.5~3.6- throttle orifice；3.7- solenoid valve；
3.8- accumulator；3.9- overflow valve.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
The present invention relates to a kind of thrust wheel passive type control valve group and thrust wheel systems.
As shown in Figure 1, respectively corresponding one thrust wheel system of setting in the two sides of greening vehicle.Thrust wheel system include supporting leg 1,
Thrust wheel oil cylinder 2 and thrust wheel 3.Supporting leg 1 is extension type, passes through the driving of thrust wheel oil cylinder 2 realization stretching in vertical direction
Contracting.The setting of thrust wheel 3 is contacted in 1 bottom of supporting leg, realization with ground surface formula.
As shown in Fig. 2, thrust wheel control valve group includes solenoid valve 3.1,3.2, hydraulic control one-way valve 3.3,3.4, throttle orifice
3.5,3.6, solenoid valve 3.7, accumulator 3.8 and overflow valve 3.9.
2/3 solenoid valve can be used in solenoid valve 3.1,3.2.2/2 solenoid valve can be used in solenoid valve 3.7.
On 2 size cavity of thrust wheel oil cylinder connection branch road, solenoid valve 3.7 is set, realizes 2 float function of thrust wheel oil cylinder
It cut-offs；
Under the state of returning the vehicle to the garage and knock off, the size cavity of the power-off partition thrust wheel oil cylinder 2 of solenoid valve 3.7 is, it can be achieved that 2 liang of thrust wheel oil cylinder
The control of cavity realizes that thrust wheel oil cylinder 2 is flexible；
Under job state, solenoid valve 3.7 links up the size cavity of thrust wheel oil cylinder 2, the size of differential connection thrust wheel oil cylinder 2
Cavity, to realize the floating of cylinder rod and being that branch weight function is prepared.
The big cavity branch road setting accumulator 3.8 of thrust wheel oil cylinder 2, accumulator 3.8 convert vehicle roll force to Zhi Chong
The compression of 2 oil liquid of oil cylinder is taken turns, internal pressure is formed；Meanwhile when vehicle restores horizontal, release resets thrust wheel oil cylinder 2 again.
It is acted on using the accumulation of energy of accumulator 3.8, it is common to realize thrust wheel oil cylinder 2 weight functions together with float function.
It does not roll in vehicle body or slightly rolls, since 2 differential connection of thrust wheel oil cylinder and 3.8 capacitive of accumulator act on,
Allow cylinder rod is a degree of to float up and down；
Once vehicle roll, unbalance loading causes 3.8 internal process pressure of accumulator passively to increase, which pushes cylinder rod to play branch immediately
With preventing, vehicle body is excessive to be rolled recast.
It is that body roll unbalance loading causes 2 cylinder rod of thrust wheel oil cylinder to bounce back that Zhi Chongzuo, which is played, with concrete principle, the oil cylinder in retraction
The variable quantity of the volume of size chamber oil liquid caused by difference in areas is simultaneously unequal.Assuming that big cavity volume changes delta V1, small cavity hold
Product changes delta V2.It is obvious that Δ V1 > Δ V2, so big cavity oil liquid Δ V1 a part is for more in cylinder rod retraction process
Mend small cavity oil liquid changes delta V2, and remaining oil liquid Δ V1- Δ V2, because causing 3.8 change of pressure of accumulator, and it is exactly
The operating pressure promotion cylinder rod of this accumulator 3.8 causes the support reaction of vehicle.
3.8 change of pressure of accumulator, the performance depending on accumulator.
The branch road setting overflow valve 3.9 of the one of cavity of thrust wheel oil cylinder 2, can limit the carrying of thrust wheel oil cylinder
Ability protects Hydraulic Elements again；Preferably, overflow valve 3.9 is arranged on 2 small cavity branch road of thrust wheel oil cylinder.
For thrust wheel oil cylinder 2, oil cylinder has bending-buckling critical load, if the unbalance loading of vehicle roll when being pressurized
It has been more than the critical load, has will lead to the bending of oil cylinder unstability, so needing to limit maximum pressure；
For accumulator, accumulator itself has maximum working pressure, it is also desirable to protect to it.
Certainly, the setting pressure of overflow valve, the smaller depending on above-mentioned two restrictive condition.
Throttle orifice 3.5,3.6 is respectively set in the branch road of 2 two cavities of thrust wheel oil cylinder, for controlling thrust wheel oil cylinder 2
It stretches out, the speed of retraction.
Before two throttle orifices 3.5,3.6, one hydraulic control one-way valve 3.3,3.4 of setting is respectively corresponded, realization is returned the vehicle to the garage and knock off under state
Pressure holding function under the positioning of thrust wheel oil cylinder 2 and job state；
Solenoid valve 3.1,3.2 is respectively set in 2 liang of cavity branch roads of thrust wheel oil cylinder, flexible for controlling thrust wheel oil cylinder, realizes
The commutation of thrust wheel oil cylinder.
When vehicle returns the vehicle to the garage and knock off, solenoid valve 3.7 is powered off, and cuts off float function, and oil cylinder size cavity is cut off as two independent appearances
Chamber.It since solenoid valve 3.1 or 3.2 charges, realizes and two single chambers is controlled, driving thrust wheel oil cylinder 2 is stretched or contracts.Two liquid
Control check valve 3.3,3.4 close off the large and small cavity of thrust wheel oil cylinder, it can be achieved that oil cylinder positioning, prevent vehicle travel process
The middle uncontrolled stretching because of cylinder rod caused by jolting.
When vehicle operation, solenoid valve 3.7 is charged, and opens float function, and the size cavity of connection thrust wheel oil cylinder 2 becomes one
A cavity.Solenoid valve 3.1 and 3.2 powers off, by the cavity after the closed communication of hydraulic control one-way valve 3.3 and 3.4, to realize the floating of cylinder rod
Dynamic and branch weight function provides guarantee.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of passive type control valve group of thrust wheel, which is characterized in that including the first solenoid valve, second solenoid valve, third electricity
Magnet valve, hydraulic control one-way valve and accumulator；
The connection branch road of two cavities of thrust wheel oil cylinder size is arranged in first solenoid valve；
Second solenoid valve and third solenoid valve respectively correspond the branch of branch and small cavity that the big cavity of thrust wheel oil cylinder is arranged in
On；
A hydraulic control one-way valve is also respectively set in the branch of big cavity and the branch road of small cavity；
The branch of big cavity also sets up accumulator.
2. the passive type control valve group of thrust wheel according to claim 1, which is characterized in that the branch and little Rong of big cavity
A throttle orifice is also respectively set in the branch road of chamber.
3. the passive type control valve group of thrust wheel according to claim 1, which is characterized in that the branch or little Rong of big cavity
The branch road of chamber also sets up an overflow valve.
4. the passive type control valve group of thrust wheel according to claim 1, which is characterized in that when the first solenoid valve powers off,
Two cavities of size are cut to two single chambers.
5. the passive type control valve group of thrust wheel according to claim 4, which is characterized in that two single chambers respectively by
Second solenoid valve and third solenoid valve are controlled.
6. the passive type control valve group of thrust wheel according to claim 4, which is characterized in that the branch and little Rong of big cavity
Two hydraulic control one-way valves of the branch road of chamber close off the large and small cavity of thrust wheel oil cylinder.
7. the passive type control valve group of thrust wheel according to claim 1, which is characterized in that when the first solenoid valve charges,
Being connected to two cavities of size becomes a cavity.
8. the passive type control valve group of thrust wheel according to claim 7, which is characterized in that the branch and little Rong of big cavity
Cavity after two hydraulic control one-way valve closed communications of the branch road of chamber.
9. a kind of thrust wheel system, which is characterized in that the thrust wheel as described in any one of claim 1 to claim 8
Passive type control valve group controlled.
10. thrust wheel system according to claim 9, which is characterized in that at least side of vehicle, including branch is arranged in
Leg, thrust wheel oil cylinder and thrust wheel；Supporting leg is realized flexible by the driving of thrust wheel oil cylinder；Thrust wheel is arranged in supporting leg bottom, can
It is contacted with ground surface formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706086.2A CN110285107A (en) | 2019-08-01 | 2019-08-01 | A kind of the passive type control valve group and thrust wheel system of thrust wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910706086.2A CN110285107A (en) | 2019-08-01 | 2019-08-01 | A kind of the passive type control valve group and thrust wheel system of thrust wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110285107A true CN110285107A (en) | 2019-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910706086.2A Pending CN110285107A (en) | 2019-08-01 | 2019-08-01 | A kind of the passive type control valve group and thrust wheel system of thrust wheel |
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| CN (1) | CN110285107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228767A (en) * | 2021-12-15 | 2022-03-25 | 中国长江电力股份有限公司 | System for transferring load of transformer in balanced manner and control method |
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| CN104369639A (en) * | 2014-09-23 | 2015-02-25 | 北京理工大学 | Wheel-type amphibious vehicle retractable type oil gas suspension system and control method |
| CN204739017U (en) * | 2015-04-08 | 2015-11-04 | 吉林工商学院 | Car lifts quick -witted hydraulic circuit |
| CN109892033B (en) * | 2013-08-02 | 2016-05-11 | 中国人民解放军陆军研究院特种勤务研究所 | A kind of five electronic handling carrier of wheel side formula of four-way |
| CN108443268A (en) * | 2018-03-06 | 2018-08-24 | 吉林大学 | The overload protection hydraulic system and overload protection method of supporting leg for bridge inspection vehicle mechanism |
| CN210343904U (en) * | 2019-08-01 | 2020-04-17 | 江苏集萃道路工程技术与装备研究所有限公司 | Driven control valve group of thrust wheel and thrust wheel system |
-
2019
- 2019-08-01 CN CN201910706086.2A patent/CN110285107A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057526A (en) * | 2013-01-04 | 2013-04-24 | 中联重科股份有限公司 | Hydraulic system for controlling synchronous support of multiple support legs and engineering vehicle |
| CN109892033B (en) * | 2013-08-02 | 2016-05-11 | 中国人民解放军陆军研究院特种勤务研究所 | A kind of five electronic handling carrier of wheel side formula of four-way |
| CN104369639A (en) * | 2014-09-23 | 2015-02-25 | 北京理工大学 | Wheel-type amphibious vehicle retractable type oil gas suspension system and control method |
| CN204739017U (en) * | 2015-04-08 | 2015-11-04 | 吉林工商学院 | Car lifts quick -witted hydraulic circuit |
| CN108443268A (en) * | 2018-03-06 | 2018-08-24 | 吉林大学 | The overload protection hydraulic system and overload protection method of supporting leg for bridge inspection vehicle mechanism |
| CN210343904U (en) * | 2019-08-01 | 2020-04-17 | 江苏集萃道路工程技术与装备研究所有限公司 | Driven control valve group of thrust wheel and thrust wheel system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228767A (en) * | 2021-12-15 | 2022-03-25 | 中国长江电力股份有限公司 | System for transferring load of transformer in balanced manner and control method |
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