CN209638124U - A kind of aircraft synchronization of jacking up hydraulic system - Google Patents
A kind of aircraft synchronization of jacking up hydraulic system Download PDFInfo
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- CN209638124U CN209638124U CN201821100376.XU CN201821100376U CN209638124U CN 209638124 U CN209638124 U CN 209638124U CN 201821100376 U CN201821100376 U CN 201821100376U CN 209638124 U CN209638124 U CN 209638124U
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Abstract
The utility model discloses a kind of aircraft synchronization of jacking up hydraulic system, the hydraulic system by electric control system and manual control system in conjunction with and the system that is formed, wherein the manual control system is supplementary controlled system, the operation of auxiliary electric control system；Wherein hydraulic system forms two kinds of mainstream connection lines by hydraulic storage, driving device, manual pump unit, regulation unit and jack control unit respectively.The utility model passes through the application on the automation main jack of synchronization of jacking up, and the state of the art reached is stable, leakproofness is good, high-efficient, noise is small and power consumption is low, realizes that the full machine of various aircraft jacks up.
Description
Technical field
The utility model belongs to plane hydraulic system analysis technical field, more particularly to a kind of aircraft synchronization of jacking up
Use hydraulic system.
Background technique
Social development it is present, home and abroad realize oil cylinder synchronously control in useful synchronized cylinder case, pass through control
The close of each oil cylinder hydraulic stroke is unanimously realized into each Flow of Cylinder, thus realize the synchronously control of oil cylinder, it is same
Precision is walked close to 1%, but this scheme is haveed the defects that certain, is the axial dimension and radial dimension of synchronized cylinder first
It is larger, it is not easy to arrange, followed by the program belongs to open-loop design, is unfavorable for eliminating the cumulative errors that each oil cylinder generates；The
Three, when each cylinder sizes differ greatly, nonstandard customization need to be carried out to synchronized cylinder, so that synchronization accuracy reduces, design is difficult
Degree increases, and R & D Cost is largely improved.
And current home and abroad also case of useful syncmotor in the synchronously control for realizing oil cylinder, by control into
Enter each Flow of Cylinder unanimously realizes the close of each oil cylinder hydraulic stroke, to realize the synchronously control of oil cylinder, synchronizes
For precision close to 1%, defect is that the program belongs to open-loop design first, is unfavorable for eliminating the cumulative errors that each oil cylinder generates；
Secondly when each cylinder sizes differ greatly, nonstandard customization need to be carried out to syncmotor, so that synchronization accuracy reduces, design
Difficulty increases and R & D Cost improves.
Various aircraft both domestic and external is all made of hand pump and realizes that the full machine of aircraft jacks up by the jacking of hydraulic cylinder, hand pump
Use, on the one hand significantly increase flight crew's labor intensity；The full machine that still further aspect also cannot achieve aircraft is synchronous
Jacking, so that aircraft occurs tilting and bearing internal stress phenomenon；Hand pump is operated by flight crew simultaneously and realizes that full machine jacks up,
The efficiency for greatly reducing aircraft maintenance guarantee, along with flourishing for China's aviation industry, flight crew passes through hand
Pump realizes that the jacking of large-tonnage aircraft has been detached from reality.Automation synchronization may be implemented in native land, inside and outside one kind of urgently developing
Main jack is jacked, for hydraulic system as the key link developed, success or failure will directly determine that automation synchronization of jacking up master is very heavy
It whether feasible pushes up.
So it is necessary to proposing a kind of new scheme that can solve above-mentioned series of defect problem.
Utility model content
It is specific to use in order to obtain a kind of efficient, energy-saving hydraulic system that automation synchronization of jacking up function may be implemented
Following technical scheme is realized:
A kind of aircraft synchronization of jacking up hydraulic system, the hydraulic system is by electric control system and manual control system knot
The system closed and formed, wherein the manual control system is supplementary controlled system, the operation of auxiliary electric control system；
The hydraulic system is respectively by hydraulic storage, driving device, manual pump unit, regulation unit and jack
Control unit forms two kinds of mainstream connection lines；
First mainstream connection line is connected to the driving device, the driving device output by the hydraulic storage
It is connected to the regulation unit input terminal, the regulation unit is connected in parallel with the jack control unit, institute
It states regulation unit output end and hydraulic storage unit is connected to form first mainstream connection line；
Article 2 mainstream connection line is connected to the manual pump unit, the manual pump unit by the hydraulic storage
It is connected to the regulation unit input terminal, the regulation unit is connected in parallel with the jack control unit, institute
It states regulation unit output end and hydraulic storage unit is connected to form Article 2 mainstream connection line.
Further scheme is,
The hydraulic storage is by fuel tank 1, oil absorption filter 2, drain the oil mouth and blocking 3, air cleaner 4 and hydraulic ga(u)ge 5
Composition, wherein the air cleaner 4, hydraulic ga(u)ge 5 and drain the oil mouth and blocking 3 is separately connected the outside for being set to fuel tank 1, it is described
Oil absorption filter 2 is set in the inside of fuel tank 1.
Further scheme is,
The driving device is made of motor 6, the connection driving of crescent gear pump 7.
Further scheme is,
The manual pump unit is formed by check valve and hand pump 8.1, check valve and 8.2 parallel combination of hand pump.
Further scheme is,
The jack control unit is made of pressure sensor 20.1 and 20.2 and main jack pressurized strut 20 connection.
Further scheme is,
The regulation unit is by check valve 9, fine filter 10, pressure gauge 11, overflow valve 12,2/2-way electromagnetism
Reversal valve 13, proportioning valve 14, shut-off valve 15, pressure compensator 16, hand-operated three-position 17, shuttle valve 18 and determine subtractive pressure
The connection composition of valve 19.
Further scheme is,
A method of realizing aircraft synchronous hydraulic jacking system, specifically includes the following steps:
When A. using electrodynamic pump in electric control system as dynamical element, shut-off valve 15 is first made to be in locking state, hand
Dynamic reversal valve 17 is in middle position, after the signal that system detection rises or falls to main jack pressurized strut 20, opens electricity immediately
Magnetic reversal valve 13.1 and 13.2；
When B. using hand pump in manual control system as dynamical element, when main 20 uphill process of jack pressurized strut,
Before rising, first shut-off valve 15 should be fully opened, hand-operated direction valve 17 pulls supreme raise-position, and hand pump 8.1 and 8.2 acts；It is main
When jack pressurized strut 20 declines process, it should first lock shut-off valve 15 completely before decline, then make hand-operated direction valve 17
In lower demotion, then slowly open shut-off valve 15.
The utility model has the advantages that
1) conventional thought for realizing aircraft jack-up by hand pump that home and abroad uses is abandoned, synchronization of jacking up will be automated
New departure be introduced into aircraft jacking hydraulic system；
2) by introducing automation synchronization hydraulic system in aircraft jacking hydraulic system, so that by electrodynamic pump instead of long-term
Come the hand pump used always, flight crew's labor intensity is reduced, also greatly improves the efficiency of aircraft maintenance guarantee；
3) after automation synchronous hydraulic jacking system being introduced into aircraft jacking, so that the synchronization accuracy of aircraft synchronization of jacking up
It is maintained in 3mm, and effectively prevents aircraft and the phenomenon that tilting and bearing internal stress occur；
4) form for using motor to drive crescent gear pump in the utility model provides power source for hydraulic system, hydraulic
System can adjust motor speed as needed, so as to adjust flow rate of hydraulic system, effectively prevent redundancy oil liquid and pass through overflow valve
Overflow and the fever generated；
5) make pressure unloading can the progress reality of the pressure according to needed for executing agency using load-sensitive valve in the utility model
When adjust (pressure unloading is 1.2MPa bigger than pressure needed for executing agency), pass through safety overflow valve so as to avoid with elevated pressures
Overflow generates fever；P mouthfuls of servo valve and A mouthful of pressure difference stabilization has been effectively ensured in 1.2MPa in another aspect load-sensitive valve, from
And make the flow by servo valve and the adjusting in direct ratio that is open, the stationarity of regulation of hydraulic system is improved, eliminates and holds
The play phenomenon that row mechanism generates.
6) the utility model passes through the application on the automation main jack of synchronization of jacking up, the state of the art that reaches is stable,
Leakproofness is good, high-efficient, noise is small and power consumption is low, realizes that the full machine of various aircraft jacks up.
Detailed description of the invention
The system diagram of Fig. 1 utility model aircraft synchronization of jacking up hydraulic system
1. fuel tank；2. oil absorption filter；3. drain the oil mouth and blocking；4. air cleaner；5. hydraulic ga(u)ge；6. motor；In 7.
Intermeshing gear pump；8. manual pump；9. check valve；10. fine filter；11. pressure gauge；12. overflow valve；13. 2/2-way is electric
Magnetic reversal valve；14. proportioning valve；15. shut-off valve；16. pressure compensator；17. hand-operated three-position；18. shuttle valve；19.
Uniform-pressure-drop valve；20. main jack pressurized strut；20.1 first pressure sensors；20.2 second pressure sensor.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below to the utility model
Specific embodiment elaborate.It is practical in order to fully understand to be explained in the following description many details
It is novel.But the utility model can be implemented with being much different from other way described herein, those skilled in the art can
To do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public specific reality
Apply the limitation of mode.
Embodiment 1
A kind of aircraft synchronization of jacking up hydraulic system, the hydraulic system are combined by electric control system and manual control system
And the system formed, wherein manual control system is supplementary controlled system, the operation of auxiliary electric control system；Hydraulic system difference
Two kinds of mainstreams are formed by hydraulic storage, driving device, manual pump unit, regulation unit and jack control unit to connect
Route；
First mainstream connection line is that the connection line of system operation is completed by electronic control operation, by described hydraulic
Memory is connected to the driving device, and the driving device output is connected to the regulation unit input terminal, the tune
Section control unit is connected in parallel with the jack control unit, the regulation unit output end and hydraulic storage unit phase
Even form first mainstream connection line；
Article 2 mainstream connection line is that the connection line for completing system operation is operated by manual pump, hydraulic is deposited by described
Reservoir is connected to the manual pump unit, and the manual pump unit is connected to the regulation unit input terminal, the adjusting
Control unit is connected in parallel with the jack control unit, and the regulation unit output end is connected with hydraulic storage unit
Form Article 2 mainstream connection line.
The new departure for automating synchronization of jacking up is introduced into aircraft jacking hydraulic system in system, reduces flight crew's labor
Fatigue resistance also greatly improves the efficiency of aircraft maintenance guarantee, avoids aircraft and the phenomenon that tilting and bearing internal stress occurs.
Embodiment 2
The system is two kinds of power-driven systems, realizes its function by two kinds of operating methods respectively:
(1) when electrodynamic pump is as dynamical element, concrete operation step is that shut-off valve 15 should first be made to be in locking state,
Hand-operated direction valve 17 is in middle position.After the signal that system detection rises or falls to main jack pressurized strut 20, open immediately
Solenoid directional control valve 13.1 and 13.2.
A) main 20 uphill process of jack pressurized strut.Motor 6 drives crescent gear pump 7 to act, and makes hydraulic oil by inhaling
Oil strainer 2, fine filter 10, solenoid directional control valve 13.1, proportioning valve 14 (being located at upper raise-position), determines subtractive pressure at check valve 9.1
Valve 19, solenoid directional control valve 13.2 are laggard to become owner of 20 cavity of resorption of jack pressurized strut, and main jack actuation is made under the action of pressure oil
Cylinder 20, which is realized, to be risen.The oil liquid of main 20 epicoele of jack pressurized strut then flows back to fuel tank after proportioning valve 14；
B) main jack pressurized strut 20 declines process.Whether cavity pressure is greater than 1.5MPa and (is slightly larger than first under system detection
Main jack pressurized strut 20 can automatic descending critical pressure)；
C) when cavity pressure is greater than 1.5MPa instantly, proportioning valve 14 is located at lower demotion, main jack pressurized strut 20 aircraft oneself
Under the action of weight, make the oil liquid of its cavity of resorption by 12 oil return box 1 of proportioning valve.Because main 20 epicoele of jack pressurized strut to form negative pressure
Trend so that part oil liquid in low pressure oil way flows to the epicoele of main jack pressurized strut 20 by check valve 9.3, in realization
Chamber repairing avoids the formation of air pocket and point corrosion；
D) when cavity pressure is less than 1.5MPa instantly, motor 6 drives crescent gear pump 7 to act, and makes pressure oil by oil suction
Filter 2, check valve 9.1, fine filter 10, solenoid directional control valve 13.1, proportioning valve 14 (being located at upper raise-position), uniform-pressure-drop valve
19, solenoid directional control valve 13.2 is laggard becomes owner of 20 epicoele of jack pressurized strut, under the action of pressure oil, forces its decline.Cavity of resorption
Pressure oil flow back to fuel tank 1 after solenoid directional control valve 13.2, uniform-pressure-drop valve 19 and proportioning valve 12.
2) when hand pump is as dynamical element, operating process is as follows:
A) main 20 uphill process of jack pressurized strut.Before rising, first shut-off valve 15 should be fully opened, manual reverse of direction
Valve 17 pulls supreme raise-position.Hand pump 8.1 and 8.2 acts, and makes hydraulic oil by oil absorption filter 2, check valve 9.2, fine filtering
Device 10, hand-operated direction valve 17 enter main 17 cavity of resorption of jack pressurized strut, and main jack pressurized strut 20 is made under the action of pressure oil
It realizes and rises.The oil liquid of main 20 epicoele of jack pressurized strut flows back to fuel tank 1 after hand-operated direction valve 17；
B) main jack pressurized strut 20 declines process.Main jack pressurized strut 20 is forced under the action of aircraft gravity under it
Chamber forms positive pressure, and epicoele has the tendency that forming negative pressure.Shut-off valve 15 should first be locked completely before decline, then make manual reverse of direction
Valve 17 is located at lower demotion, then slowly opens shut-off valve 15, and the oil liquid of cavity of resorption flows back to after shut-off valve 15 and hand-operated direction valve 17
Fuel tank 1, because main 20 epicoele of jack pressurized strut has the tendency that forming negative pressure, so that the part oil liquid in low pressure oil way is by unidirectional
Valve 9.3 flows to the epicoele of main jack pressurized strut 20, realizes the repairing of epicoele, in order to avoid form air pocket and point corrosion.
The form that the above method uses motor to drive crescent gear pump provides power source for hydraulic system, can be as needed
It adjusts motor speed and adjusts flow rate of hydraulic system, avoid the fever that redundancy oil liquid is generated by overflow valve overflow；Using negative
Carry sensitive valve make pressure unloading can the pressure according to needed for executing agency carry out adjustment in real time and avoid and pass through peace with elevated pressures
Full overflow valve overflow generates fever, and the pressure difference that load-sensitive valve has also been effectively ensured P mouthfuls and A mouthfuls of servo valve is stablized in 1.2MPa,
So that the flow by servo valve and the adjusting in direct ratio that is open, improve system stationarity, eliminate play phenomenon.
Although hereinbefore having been made with reference to some embodiments the utility model is described, this reality is not being departed from
In the case where with novel range, various improvement can be carried out to it and can be with equivalent without replacement technical point therein, especially
It is, as long as technical contradiction is not present, the various features in the various embodiments of the utility model institute careless mistake can be by any
Mode is used in combination with, and not carrying out the description of exhaustive row to the case where these combinations in the present invention is only to be in province
Slightly length and the considerations of economizing on resources.Therefore, the utility model is not limited to specific embodiment disclosed herein, and including
Fall into claim.
Claims (5)
1. a kind of aircraft synchronization of jacking up hydraulic system, which is characterized in that the hydraulic system is by electric control system and manually
Control system in conjunction with and formed system, wherein the manual control system be supplementary controlled system, auxiliary electric control system
Operation；
The hydraulic system is controlled by hydraulic storage, driving device, manual pump unit, regulation unit and jack respectively
Unit forms two kinds of mainstream connection lines；
First mainstream connection line is connected to the driving device, the driving device output connection by the hydraulic storage
To the regulation unit input terminal, the regulation unit is connected in parallel with the jack control unit, the tune
Section control unit output end and hydraulic storage unit are connected to form first mainstream connection line；
Article 2 mainstream connection line is connected to the manual pump unit, the manual pump unit connection by the hydraulic storage
To the regulation unit input terminal, the regulation unit is connected in parallel with the jack control unit, the tune
Section control unit output end and hydraulic storage unit are connected to form Article 2 mainstream connection line.
2. aircraft synchronization of jacking up hydraulic system according to claim 1, which is characterized in that the hydraulic storage is by oil
Case (1), oil absorption filter (2), drain the oil mouth and blocking (3), air cleaner (4) and hydraulic ga(u)ge (5) composition, wherein the air
Filter (4), hydraulic ga(u)ge (5) and drain the oil mouth and blocking (3) is separately connected the outside for being set to fuel tank (1), the oil suction filtering
Device (2) is set in the inside of fuel tank (1).
3. aircraft synchronization of jacking up hydraulic system according to claim 1, which is characterized in that the driving device is by motor
(6), crescent gear pump (7) connection driving composition.
4. aircraft synchronization of jacking up hydraulic system according to claim 1, which is characterized in that the manual pump unit is by list
It is formed to valve and hand pump (8.1), check valve and hand pump (8.2) parallel combination.
5. aircraft synchronization of jacking up hydraulic system according to claim 1, which is characterized in that the jack control unit
It is made of first pressure sensor (20.1), second pressure sensor (20.2) and main jack pressurized strut (20) connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821100376.XU CN209638124U (en) | 2018-07-12 | 2018-07-12 | A kind of aircraft synchronization of jacking up hydraulic system |
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| CN201821100376.XU CN209638124U (en) | 2018-07-12 | 2018-07-12 | A kind of aircraft synchronization of jacking up hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038698A (en) * | 2019-12-30 | 2020-04-21 | 中航电测仪器(西安)有限公司 | Manual hydraulic multipoint synchronization mechanism and operation method thereof |
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2018
- 2018-07-12 CN CN201821100376.XU patent/CN209638124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038698A (en) * | 2019-12-30 | 2020-04-21 | 中航电测仪器(西安)有限公司 | Manual hydraulic multipoint synchronization mechanism and operation method thereof |
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