CN108167242A - A kind of high-pressure fluid drive system - Google Patents
A kind of high-pressure fluid drive system Download PDFInfo
- Publication number
- CN108167242A CN108167242A CN201611117337.6A CN201611117337A CN108167242A CN 108167242 A CN108167242 A CN 108167242A CN 201611117337 A CN201611117337 A CN 201611117337A CN 108167242 A CN108167242 A CN 108167242A
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- CN
- China
- Prior art keywords
- hydraulic
- valve
- pressure
- oil
- emergent
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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
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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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
-
- 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
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
Abstract
The invention belongs to hydraulic air Pneumatic System Design technologies, are related to a kind of high-pressure fluid drive system.The present invention includes hydraulic pump (1), hydraulic oil container (2), hydraulic buttery valve (3), emergent valve (4), Residual oil valve (5), pressurized strut (6), gas cylinder (7), air pressure electromagnetic valve (8) and connecting conduit；It is substituted when emergent cold air is used to drive using the emergent oil extraction function of hydraulic oil container (2), eliminate the dedicated oil extraction attachment of the emergent oil extraction valve 9 in original system, reduce system weight and link, improve reliability, there is higher engineering application value.
Description
Technical field
The invention belongs to hydraulic air Pneumatic System Design technologies, are related to a kind of high-pressure fluid drive system.
Background technology
The mechanism kinematics such as undercarriage are generally driven with hydraulic system.In order to ensure safety, by hydraulic pressure during normal work
It system drive undercarriage stowage and puts down, when in-flight there is hydraulic system fault, drives undercarriage extensive by emergent high pressure nitrogen
Down state is arrived again, needs to carry out the switching of two kinds of working medium at this time.Generally in switching, emergent oil extraction attachment can be used, is used for
Hydraulic oil in emergent discharge system influences the work of high pressure nitrogen to avoid it.
Existing aircraft high-pressure fluid drive system by taking gear steering system as an example, including hydraulic pump 1, hydraulic oil container 2,
Hydraulic buttery valve 3, emergent valve 4, Residual oil valve 5, pressurized strut 6, gas cylinder 7, air pressure electromagnetic valve 8, emergent oil extraction valve 9 and connection
Conduit；Hydraulic pump 1 provides hydraulic power source；Hydraulic oil container 2 receives hydraulic oil and to 1 fuel feeding of hydraulic pump；Hydraulic buttery valve 3 controls fluid
Flow direction；Emergent valve 4 is used to switch oil gas medium；Residual oil valve 5 excludes the Residual oil into pneumatic circuit；Pressurized strut 6 drives fortune
Motivation structure；Gas cylinder 7 stores high pressure nitrogen；Air pressure electromagnetic valve 8 controls cooling pipelines break-make；Emergent oil extraction valve 9 is in high pressure nitrogen
It, will be outside the hydraulic oil discharge machine in pressurized strut after.
Hydraulic pump 1 is to provide system hydraulic power source.Hydraulic oil container 2 receives the reflux hydraulic oil of pressurized strut 6 and is supplied to hydraulic pump 1
Oil.Hydraulic buttery valve 3 is 3 valves, and the direction of motion of pressurized strut 6 is controlled by controlling fluid flow direction；It is being answered when needing mechanism
Anxious air pressure driving is lower when resetting, and selects some particular valve position, pressure supply of the cut-out hydraulic pump 1 to pressurized strut 6, and by pressurized strut
The fluid at 6 both ends all guide hydraulic fuel tanks 3；Cooling pipelines are without pressure during normal work, and hydraulic channel is unimpeded in valve 4 of meeting an urgent need.Machine
Hydraulic power source is cut off by hydraulic buttery valve 3 during structure EMR emergency reset, fluid pressure line low pressure.Emergent cold air high pressure is connect by air pressure electromagnetic valve 8
Logical, high pressure cold initially enters emergent oil extraction valve 9, the hydraulic pressure that oil extraction valve 9 will connect pressurized strut 6 under cold air promotion of meeting an urgent need
Pipeline blocks, and will be outside hydraulic oil discharge machine therein.Then high pressure cold enters emergent valve 4, and valve 4 of meeting an urgent need becomes in pressure
Automatic switchover is changed, separates fluid pressure line, high pressure cold is oriented to the reset terminal of pressurized strut 6.Residual oil valve 5 for exclude from should
Enter a small amount of Residual oil of pneumatic circuit in anxious valve 4；6 lead agency of pressurized strut moves back and forth under the control of hydraulic buttery valve 3；Gas
Bottle 7 stores high pressure cold；Air pressure electromagnetic valve 8 controls cooling pipelines break-make.
Invention content：
The purpose of the present invention is：A kind of normal fluid pressure driving, cold gas-powered high-pressure fluid drive system skill of meeting an urgent need are provided
Art.
The technical scheme is that：A kind of high-pressure fluid drive system, including hydraulic pump 1, hydraulic oil container 2, hydraulic pressure electricity
Magnet valve 3, emergent valve 4, Residual oil valve 5, pressurized strut 6, gas cylinder 7, air pressure electromagnetic valve 8 and connecting conduit；Hydraulic pump 1 provides hydraulic pressure
Source；Hydraulic oil container 2 receives hydraulic oil and to 1 fuel feeding of hydraulic pump, and has emergent oil extraction function；Hydraulic buttery valve 3 controls fluid
Flow direction；Emergent valve 4 is used to switch oil gas medium；Residual oil valve 5 excludes the Residual oil into pneumatic circuit；Pressurized strut 6 drives fortune
Motivation structure；Gas cylinder 7 stores high pressure cold；Air pressure electromagnetic valve 8 controls cooling pipelines break-make；Hydraulic pump 1 is constant pressure variable displacement pump, is provided
System hydraulic power source, hydraulic oil container 2 receive the reflux hydraulic oil of pressurized strut 6 and to 1 fuel feeding of hydraulic pump, and hydraulic buttery valve 3 is 3
Valve controls the direction of motion of pressurized strut 6 by controlling fluid flow direction；When mechanism is needed to be resetted under emergent air pressure driving,
Cut off pressure supply of the hydraulic pump 1 to pressurized strut 6, and by the fluid at 6 both ends of pressurized strut all guide hydraulic fuel tanks 3, when normal work is cold
Air pipe is without pressure, and hydraulic channel is unimpeded in valve 4 of meeting an urgent need；The emergent valve 4 automatically switches under pressure alteration, separates hydraulic pressure
High pressure cold is oriented to the reset terminal of pressurized strut 6 by pipeline, resets the lead agency under high-pressure medium promotion of pressurized strut 6, mechanism
Hydraulic power source is cut off by hydraulic buttery valve 3 during EMR emergency reset, fluid pressure line low pressure, and emergent cold air high pressure is connected by air pressure electromagnetic valve 8,
Residual oil valve 5 enters a small amount of Residual oil of pneumatic circuit for exclusion from emergent valve 4；6 lead agency of pressurized strut is in hydraulic pressure electricity
The control of magnet valve 3 is lower to be moved back and forth；Gas cylinder 7 stores high pressure cold；Air pressure electromagnetic valve 8 controls cooling pipelines break-make.
The hydraulic oil container 2 has the function of automatic emergency oil extraction when interior oil mass is excessive.
It is an advantage of the invention that：When emergent cold air is used to drive, the present invention utilizes answering for the hydraulic oil container 2 in new system
Anxious oil extraction function is substituted, and is eliminated the dedicated oil extraction attachment of the emergent oil extraction valve 9 in original system, is reduced system
Weight and link, improve reliability, have higher engineering application value.
Description of the drawings
Fig. 1 is each component composition connection figure of existing system.
Fig. 2 is each component composition connection figure of the present invention.
Specific embodiment
A kind of high-pressure fluid drive system, including hydraulic pump 1, hydraulic oil container 2, hydraulic buttery valve 3, emergent valve 4, Residual oil
Valve 5, pressurized strut 6, gas cylinder 7, air pressure electromagnetic valve 8 and connecting conduit.
Hydraulic pump 1 is constant pressure variable displacement pump, provides system hydraulic power source.Hydraulic oil container 2 receives the reflux hydraulic oil of pressurized strut simultaneously
To 1 fuel feeding of hydraulic pump；And have emergent oil extraction function, when return is met an urgent need by mechanism, the hydraulic oil that high pressure cold is squeezed out is discharged.
Hydraulic buttery valve 3 is 3 valves, and the direction of motion of pressurized strut 6 is controlled by controlling fluid flow direction；When needing mechanism in emergent gas
When being resetted under pressure driving, some particular valve position of selection solenoid valve 3, pressure supply of the cut-out hydraulic pump 1 to pressurized strut 6, and will work
Fluid all guide hydraulic fuel tanks 3 at dynamic 6 both ends of cylinder.Emergent valve 4 for switching oil gas medium, during normal work cooling pipelines without
It presses, hydraulic channel is unimpeded in valve 4 of meeting an urgent need；Hydraulic power source is cut off by hydraulic buttery valve 3 during mechanism EMR emergency reset, and fluid pressure line is low
Pressure, emergent cold air high pressure are connected by air pressure electromagnetic valve 8, and emergent valve 4 automatically switches under pressure alteration, separates fluid pressure line,
High pressure cold is oriented to the reset terminal of pressurized strut 6.Residual oil valve 5 enters lacking for pneumatic circuit for exclusion from emergent valve 4
Measure Residual oil；6 lead agency of pressurized strut moves back and forth under the control of hydraulic buttery valve 3；Gas cylinder 7 stores high pressure cold；Air pressure electromagnetism
Valve 8 controls cooling pipelines break-make.
Claims (2)
1. a kind of high-pressure fluid drive system, which is characterized in that including hydraulic pump (1), hydraulic oil container (2), hydraulic buttery valve
(3), emergent valve (4), Residual oil valve (5), pressurized strut (6), gas cylinder (7), air pressure electromagnetic valve (8) and connecting conduit；Hydraulic pump
(1) hydraulic power source is provided；Hydraulic oil container (2) receives hydraulic oil and to hydraulic pump (1) fuel feeding, and has emergent oil extraction function；Hydraulic pressure
Solenoid valve (3) control fluid flow direction；Valve (4) meet an urgent need for switching oil gas medium；Residual oil valve (5) excludes to enter pneumatic circuit
Residual oil；Pressurized strut (6) drives motion；Gas cylinder (7) stores high pressure cold；Air pressure electromagnetic valve (8) control cooling pipelines lead to
It is disconnected；
Hydraulic pump (1) is constant pressure variable displacement pump, provides system hydraulic power source, and hydraulic oil container (2) receives the reflux hydraulic oil of pressurized strut (6)
And to hydraulic pump (1) fuel feeding, hydraulic buttery valve (3) is 3 valves, and the movement of pressurized strut (6) is controlled by controlling fluid flow direction
Direction；When mechanism is needed to be resetted under emergent air pressure driving, cut-out hydraulic pump (1) pressure supply to pressurized strut (6), and by start
Fluid all guide hydraulic fuel tanks (3) at cylinder (6) both ends, cooling pipelines are without pressure during normal work, hydraulic channel in valve (4) of meeting an urgent need
It is unimpeded；The emergent valve (4) is automatically switched under pressure alteration, separates fluid pressure line, and high pressure cold is oriented to pressurized strut (6)
Reset terminal, reset pressurized strut (6) lead agency under high-pressure medium promotion, hydraulic power source is by hydraulic pressure electricity during mechanism EMR emergency reset
Magnet valve (3) cut off, fluid pressure line low pressure, meet an urgent need cold air high pressure by air pressure electromagnetic valve (8) connect, oil valve (5) for exclude from
Enter a small amount of Residual oil of pneumatic circuit in emergent valve (4)；Pressurized strut (6) lead agency is past under hydraulic buttery valve (3) control
Multiple movement；Gas cylinder (7) stores high pressure cold；Air pressure electromagnetic valve (8) controls cooling pipelines break-make.
2. a kind of high-pressure fluid drive system described in claim 1, which is characterized in that the hydraulic oil container (2) has interior oil
The function of automatic emergency oil extraction when measuring excessive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611117337.6A CN108167242B (en) | 2016-12-07 | 2016-12-07 | A kind of high-pressure fluid drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611117337.6A CN108167242B (en) | 2016-12-07 | 2016-12-07 | A kind of high-pressure fluid drive system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167242A true CN108167242A (en) | 2018-06-15 |
| CN108167242B CN108167242B (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611117337.6A Active CN108167242B (en) | 2016-12-07 | 2016-12-07 | A kind of high-pressure fluid drive system |
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| CN (1) | CN108167242B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106697266A (en) * | 2016-12-28 | 2017-05-24 | 中国航空工业集团公司西安飞机设计研究所 | Retracting control system of aircraft landing gear |
| CN109733594A (en) * | 2019-03-06 | 2019-05-10 | 成都飞机工业（集团）有限责任公司 | A kind of cold air operation of landing gear system and its method of rising and falling |
| CN110864024A (en) * | 2019-11-04 | 2020-03-06 | 中航飞机起落架有限责任公司 | Oil discharge conversion valve and hydraulic retraction system |
| CN112173085A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Hydraulic control system and method for retraction and release of helicopter undercarriage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1218241A1 (en) * | 1999-10-07 | 2002-07-03 | Honeywell Normalair-Garrett (Holdings) Limited | Hydraulic system for aircraft landing gear |
| CN101172521A (en) * | 2006-10-17 | 2008-05-07 | 梅西耶-布加蒂公司 | Architecture of a hydraulic system for manoeuvring aircraft landing gear |
| CN102287268A (en) * | 2011-08-05 | 2011-12-21 | 中国南方航空工业(集团)有限公司 | State transition valve and system |
| US20130146707A1 (en) * | 2007-09-14 | 2013-06-13 | Airbus Operations Limited | Method and apparatus for providing power in an aircraft to one or more aircraft systems |
| CN104743101A (en) * | 2015-03-30 | 2015-07-01 | 中国民用航空飞行学院 | Navigation aircraft landing gear folding and unfolding system |
| CN105650190A (en) * | 2016-03-04 | 2016-06-08 | 国机集团北京飞行强度研究所有限公司 | Undercarriage buffer support column inner cavity oil filling device |
-
2016
- 2016-12-07 CN CN201611117337.6A patent/CN108167242B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1218241A1 (en) * | 1999-10-07 | 2002-07-03 | Honeywell Normalair-Garrett (Holdings) Limited | Hydraulic system for aircraft landing gear |
| CN101172521A (en) * | 2006-10-17 | 2008-05-07 | 梅西耶-布加蒂公司 | Architecture of a hydraulic system for manoeuvring aircraft landing gear |
| US20130146707A1 (en) * | 2007-09-14 | 2013-06-13 | Airbus Operations Limited | Method and apparatus for providing power in an aircraft to one or more aircraft systems |
| CN102287268A (en) * | 2011-08-05 | 2011-12-21 | 中国南方航空工业(集团)有限公司 | State transition valve and system |
| CN104743101A (en) * | 2015-03-30 | 2015-07-01 | 中国民用航空飞行学院 | Navigation aircraft landing gear folding and unfolding system |
| CN105650190A (en) * | 2016-03-04 | 2016-06-08 | 国机集团北京飞行强度研究所有限公司 | Undercarriage buffer support column inner cavity oil filling device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106697266A (en) * | 2016-12-28 | 2017-05-24 | 中国航空工业集团公司西安飞机设计研究所 | Retracting control system of aircraft landing gear |
| CN109733594A (en) * | 2019-03-06 | 2019-05-10 | 成都飞机工业（集团）有限责任公司 | A kind of cold air operation of landing gear system and its method of rising and falling |
| CN110864024A (en) * | 2019-11-04 | 2020-03-06 | 中航飞机起落架有限责任公司 | Oil discharge conversion valve and hydraulic retraction system |
| CN110864024B (en) * | 2019-11-04 | 2022-04-08 | 中航飞机起落架有限责任公司 | Oil discharge conversion valve and hydraulic retraction system |
| CN112173085A (en) * | 2020-09-25 | 2021-01-05 | 中国直升机设计研究所 | Hydraulic control system and method for retraction and release of helicopter undercarriage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108167242B (en) | 2019-08-20 |
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