CN108980127A - A kind of three cylinder synchronous hydraulic control loops - Google Patents
A kind of three cylinder synchronous hydraulic control loops Download PDFInfo
- Publication number
- CN108980127A CN108980127A CN201811031262.9A CN201811031262A CN108980127A CN 108980127 A CN108980127 A CN 108980127A CN 201811031262 A CN201811031262 A CN 201811031262A CN 108980127 A CN108980127 A CN 108980127A
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- CN
- China
- Prior art keywords
- oil
- cylinder
- cylinders
- directional control
- synchronous
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- 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.)
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Classifications
-
- 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
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- 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
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Abstract
The present invention relates to a kind of three cylinder synchronous hydraulic control loops, belong to hydraulic transmission technology field.The present invention is on the basis of three cylinder synchronization loop of conventional hydraulic, devise a kind of three cylinder synchronous hydraulic control loops with gear wheel flow-rate distributor, folding for cabin cabin large size hatchcover, compared with relying on mechanical structure to guarantee synchronous mechanism in the prior art, circuit structure is simpler, three cylinders have been better achieved to move synchronously, high reliablity, many installations and operating cost have been saved for whole system, it is perpendicular that Multi-path synchronous can be conveniently realized, and the service life of pump can be extended, reduce the complexity of mechanical load.
Description
Technical field
The invention belongs to hydraulic transmission technology fields, and in particular to a kind of three cylinder synchronous hydraulic control loops.
Background technique
It requires three oil cylinders of uncapping to move synchronously in car launcher cabin moving process, is realized before using buckstay connection more
Cylinder is synchronous, guarantees by mechanical structure.If the stress of hydraulic cylinder is had any different in moving process, rigid mechanicals efforts may
Hydraulic cylinder is damaged, while more demanding to mechanical coupling strength.This just gives the synchronously control band in cabin moving process
Come difficult.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is how on the basis of conventional hydraulic synchronization onwards are perpendicular, design a kind of new
Three cylinder synchronous hydraulic control loops solve the problems, such as that cabin three cylinder synchronization onwards of oil cylinder of uncapping are perpendicular.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of three cylinder synchronous hydraulic control loops, comprising: multichannel is changed
To valve 1, one-way throttle valve 2, gear wheel flow-rate distributor 3, bidirectional hydraulic lock 4 and oil cylinder 5 of uncapping；
The p mouth of the multiple directional control valve 1 connects oil sources, and A oil outlet connects the oil inlet of one-way throttle valve 2, described unidirectional
The oil outlet connection of the oil inlet of the oil outlet connection gear flow distributor 3 of throttle valve 2, the gear wheel flow-rate distributor 3 is double
To an oil inlet C of hydraulic lock 4, the oil outlet corresponding with oil inlet C of the bidirectional hydraulic lock 4 connects the nothing for oil cylinder 5 of uncapping
Rod cavity, another oil outlet connect the rod chamber for oil cylinder 5 of uncapping, and another oil inlet D of three bidirectional hydraulic locks 4 links together,
And it is connected to the B oil outlet of multiple directional control valve 1；Overflow valve in the gear wheel flow-rate distributor 3 is located on oil return circuit, overflow valve
One end connects the oil inlet C of bidirectional hydraulic lock 4, and the other end connects a fuel tank, plays the role of as safeguard protection.
Preferably, the three cylinders synchronous hydraulic control loop for realizing cabin cabin folding.
Preferably, the three cylinders synchronous hydraulic control loop for realizing car launcher cabin cabin folding.
The present invention also provides a kind of methods for realizing three cylinder synchronization actions using the circuit, comprising the following steps:
When three cylinder synchronization actions, obtain the electromagnet 1aDT in multiple directional control valve 1 electric, hydraulic oil is fuel-displaced by the A of multiple directional control valve 1
Mouthful, one-way throttle valve 2 enter gear wheel flow-rate distributor 3, the flow of input is divided into equal third by gear wheel flow-rate distributor 3
Point, the rodless cavity for oil cylinder 5 of uncapping is entered by bidirectional hydraulic lock 4, is realized that three cylinders are synchronous and is stretched out, in the process using unidirectional
Synchronizing speed is adjusted in throttle valve 2；Multiple directional control valve 1 is set to switch oil circuit, that is, so that its another electromagnet 1bDT is powered,
Hydraulic oil passes through the B oil outlet of multiple directional control valve 1, directly enters from bidirectional hydraulic lock 4 without gear wheel flow-rate distributor 3
It uncaps the rod chamber of oil cylinder 5, three oil cylinders is driven to retract；Uncap oil cylinder 5 rodless cavity oil liquid by bidirectional hydraulic lock 4, gear
Flow distributor 3, one-way throttle valve 2, multiple directional control valve 1 flow back to fuel tank, realize the synchronous retraction of three cylinders.
Preferably, the method for realizing cabin cabin folding.
Preferably, the method for realizing car launcher cabin cabin folding.
(3) beneficial effect
The present invention devises a kind of three cylinders with gear wheel flow-rate distributor on the basis of three cylinder synchronization loop of conventional hydraulic
Synchronous hydraulic control loop and relies on mechanical structure guarantee synchronous for the folding of cabin cabin large size hatchcover in the prior art
Mechanism compare, circuit structure is simpler, and three cylinders have been better achieved and have moved synchronously, and high reliablity is saved for whole system
Many installations and operating cost can conveniently realize Multi-path synchronous and play service life that is perpendicular, and can extending pump, reduce machinery
The complexity of load.
Detailed description of the invention
Fig. 1 is three cylinder synchronous hydraulic control loop schematic diagrams of the invention.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to of the invention
Specific embodiment is described in further detail.
The present invention increases a gear wheel flow-rate distributor on the basis of three cylinder synchronization loop of conventional hydraulic, as
Flow equilibrium device, the flow provided pump are shunted, are distributed in three oil cylinders, are realized that three cylinders synchronize and are extended and retracted.
Fig. 1 is the three cylinder synchronization hydraulic system schematic diagrams with gear wheel flow-rate distributor.As shown in Figure 1, three cylinders of the invention
Synchronous hydraulic control loop includes: multiple directional control valve 1, one-way throttle valve 2, gear wheel flow-rate distributor 3, bidirectional hydraulic lock 4 and opens
Lid oil cylinder 5.
The p mouth of multiple directional control valve 1 connects oil sources, and A oil outlet connects the oil inlet of one-way throttle valve 2, one-way throttle valve 2
The oil inlet of oil outlet connection gear flow distributor 3, the one of the oil outlet connection bidirectional hydraulic lock 4 of gear wheel flow-rate distributor 3
Oil inlet C, the oil outlet corresponding with oil inlet C of bidirectional hydraulic lock 4 connect the rodless cavity for oil cylinder 5 of uncapping, and another oil outlet connects
The rod chamber for oil cylinder 5 of uncapping is connect, another oil inlet D of three bidirectional hydraulic locks 4 links together, and is connected to multiple directional control valve 1
B oil outlet.Overflow valve in gear wheel flow-rate distributor 3 is located on oil return circuit, and overflow valve one end connects bidirectional hydraulic lock 4
Oil inlet C, the other end connect a fuel tank, play the role of as safeguard protection.
When three cylinders (oil cylinder 5 of uncapping) synchronization action, obtain the electromagnet 1aDT in multiple directional control valve 1 electric, hydraulic oil is logical
Cross the A oil outlet of multiple directional control valve 1, one-way throttle valve 2 enters gear wheel flow-rate distributor 3, gear wheel flow-rate distributor 3 is by input
Flow is divided into equal trisection, and the rodless cavity for oil cylinder 5 of uncapping is entered by bidirectional hydraulic lock 4, realizes that three cylinders are synchronous and stretches out,
Synchronizing speed is adjusted using one-way throttle valve 2 in the process.Multiple directional control valve 1 is set to switch oil circuit, that is, to keep its another
A electromagnet 1bDT is powered, and hydraulic oil passes through the B oil outlet of multiple directional control valve 1, without gear wheel flow-rate distributor 3 directly from
Bidirectional hydraulic lock 4 enters the rod chamber for oil cylinder 5 of uncapping, and three oil cylinders is driven to retract.The rodless cavity oil liquid of oil cylinder 5 of uncapping passes through
Bidirectional hydraulic lock 4, gear wheel flow-rate distributor 3, one-way throttle valve 2, multiple directional control valve 1 flow back to fuel tank, realize the synchronous retraction of three cylinders.
Due to above-mentioned specific connection relationship, one-way throttle valve 2 can not only be by throttling come the speed of adjusting oil mass, additionally it is possible to provide
Certain back pressure realizes the effect of motion stabilization.
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 (7)
1. a kind of three cylinder synchronous hydraulic control loops characterized by comprising multiple directional control valve (1), one-way throttle valve (2), tooth
Take turns flow distributor (3), bidirectional hydraulic lock (4) and oil cylinder of uncapping (5)；
The oil inlet of A oil outlet connection one-way throttle valve (2) of the multiple directional control valve (1), the one-way throttle valve (2) go out
The oil outlet of the oil inlet of hydraulic fluid port connection gear flow distributor (3), the gear wheel flow-rate distributor (3) connects bidirectional hydraulic lock
(4) an oil inlet C, the bidirectional hydraulic lock (4) oil outlet corresponding with oil inlet C connection uncap oil cylinder (5) without bar
Chamber, another oil outlet connect the rod chamber for oil cylinder (5) of uncapping, and another oil inlet D of three bidirectional hydraulic locks (4) is connected to one
It rises, and is connected to the B oil outlet of multiple directional control valve (1)；Overflow valve in the gear wheel flow-rate distributor (3) is located at oil return circuit
On, overflow valve one end connects the oil inlet C of bidirectional hydraulic lock (4), and the other end connects a fuel tank, plays the work as safeguard protection
With.
2. three cylinders synchronous hydraulic control loop as described in claim 1, which is characterized in that the p mouth of the multiple directional control valve (1)
Connect oil sources.
3. three cylinders synchronous hydraulic control loop as described in claim 1, which is characterized in that the three cylinders synchronous hydraulic controls back
Road for realizing cabin cabin folding.
4. three cylinders synchronous hydraulic control loop as described in claim 1, which is characterized in that the three cylinders synchronous hydraulic controls back
Road for realizing car launcher cabin cabin folding.
5. a kind of method for realizing three cylinder synchronization actions using circuit described in claim 1, which is characterized in that including following step
It is rapid: when three cylinder synchronization actions, to obtain the electromagnet 1aDT in multiple directional control valve (1) electric, hydraulic oil passes through multiple directional control valve (1)
A oil outlet, one-way throttle valve (2) enter gear wheel flow-rate distributor (3), gear wheel flow-rate distributor (3) is by the flow of input point
At equal trisection, the rodless cavity of oil cylinder of uncapping (5) is entered by bidirectional hydraulic lock (4), is realized that three cylinders are synchronous and is stretched out,
Utilize one-way throttle valve (2) that synchronizing speed is adjusted during this；Multiple directional control valve (1) is set to switch oil circuit, that is, to keep it another
One electromagnet 1bDT is powered, and hydraulic oil passes through the B oil outlet of multiple directional control valve (1), without gear wheel flow-rate distributor (3)
The rod chamber that oil cylinder of uncapping (5) are directly entered from bidirectional hydraulic lock (4) drives three oil cylinders to retract；It uncaps the nothings of oil cylinder (5)
Rod cavity oil liquid flows back to oil by bidirectional hydraulic lock (4), gear wheel flow-rate distributor (3), one-way throttle valve (2), multiple directional control valve (1)
Case realizes the synchronous retraction of three cylinders.
6. method as claimed in claim 5, which is characterized in that the method for realizing cabin cabin folding.
7. method as claimed in claim 5, which is characterized in that the method for realizing car launcher cabin cabin folding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031262.9A CN108980127A (en) | 2018-09-05 | 2018-09-05 | A kind of three cylinder synchronous hydraulic control loops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031262.9A CN108980127A (en) | 2018-09-05 | 2018-09-05 | A kind of three cylinder synchronous hydraulic control loops |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980127A true CN108980127A (en) | 2018-12-11 |
Family
ID=64544825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811031262.9A Pending CN108980127A (en) | 2018-09-05 | 2018-09-05 | A kind of three cylinder synchronous hydraulic control loops |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108980127A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1481922A1 (en) * | 1966-03-16 | 1969-07-17 | Tokyo Keiki Seizosho Co Ltd | Synchronization control device for a hydraulic lifting device |
| WO2011105934A1 (en) * | 2010-02-24 | 2011-09-01 | Samoylov Aleksey Viktorovich | Synchronization method, stand for threaded connections, and divider (variants) |
| CN202251172U (en) * | 2011-09-23 | 2012-05-30 | 中联重科股份有限公司 | Synchronous hydraulic cylinder control system and crane |
| CN102705284A (en) * | 2012-06-21 | 2012-10-03 | 三一重工股份有限公司 | Synchronous hydraulic control system and shield tunnel borer |
| CN202673808U (en) * | 2012-07-05 | 2013-01-16 | 中冶赛迪工程技术股份有限公司 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
| CN204200730U (en) * | 2014-10-17 | 2015-03-11 | 天津市海王星海上工程技术股份有限公司 | A kind of hydraulic system of pin-type lifting device |
| CN204591839U (en) * | 2015-04-08 | 2015-08-26 | 皖西学院 | The bender hydraulic synchronous system that a kind of hydraulic synchronous motor controls |
| CN205401285U (en) * | 2016-03-03 | 2016-07-27 | 张宁 | Hydraulic lifting platform multi -cylinder synchronization hydraulic system |
-
2018
- 2018-09-05 CN CN201811031262.9A patent/CN108980127A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1481922A1 (en) * | 1966-03-16 | 1969-07-17 | Tokyo Keiki Seizosho Co Ltd | Synchronization control device for a hydraulic lifting device |
| WO2011105934A1 (en) * | 2010-02-24 | 2011-09-01 | Samoylov Aleksey Viktorovich | Synchronization method, stand for threaded connections, and divider (variants) |
| CN202251172U (en) * | 2011-09-23 | 2012-05-30 | 中联重科股份有限公司 | Synchronous hydraulic cylinder control system and crane |
| CN102705284A (en) * | 2012-06-21 | 2012-10-03 | 三一重工股份有限公司 | Synchronous hydraulic control system and shield tunnel borer |
| CN202673808U (en) * | 2012-07-05 | 2013-01-16 | 中冶赛迪工程技术股份有限公司 | Multi-cylinder diffluence motor synchronous compensation hydraulic system |
| CN204200730U (en) * | 2014-10-17 | 2015-03-11 | 天津市海王星海上工程技术股份有限公司 | A kind of hydraulic system of pin-type lifting device |
| CN204591839U (en) * | 2015-04-08 | 2015-08-26 | 皖西学院 | The bender hydraulic synchronous system that a kind of hydraulic synchronous motor controls |
| CN205401285U (en) * | 2016-03-03 | 2016-07-27 | 张宁 | Hydraulic lifting platform multi -cylinder synchronization hydraulic system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |