CN107831017A - Aero-engine reverse thrust door switch motion durability test apparatus - Google Patents
Aero-engine reverse thrust door switch motion durability test apparatus Download PDFInfo
- Publication number
- CN107831017A CN107831017A CN201710864039.1A CN201710864039A CN107831017A CN 107831017 A CN107831017 A CN 107831017A CN 201710864039 A CN201710864039 A CN 201710864039A CN 107831017 A CN107831017 A CN 107831017A
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- Prior art keywords
- reverse thrust
- thrust door
- aero
- switch motion
- control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
Abstract
The invention discloses a kind of aero-engine reverse thrust door to switch motion durability test apparatus, it, which is formed, includes reverse thrust door switch excercises control hydraulic system and reverse thrust door switch motion control test and display system, the hydraulic system includes hydraulic oil container, promote reverse thrust door switch motion hydraulic actuator, pressure oil pump and check valve on pipeline road are arranged on, the oil pressure cntrol valve group and control reverse thrust door that are arranged on pipeline road and return line open the switching control pilot group with closing；The control test and display system includes detection reverse thrust door lock status detection circuit, detection switch control valve group state detection circuit, detection reverse thrust door location status detection circuit, reverse thrust door enabling timing circuit and reverse thrust door shutdown timing circuit.The advantages that experimental rig manufacturing cost of the present invention is low, and experimental rig work-based logic is reasonable in design, good reliability and operation display are clear and definite.
Description
Technical field
The invention belongs to part System Reliability Test technical field in aero-engine development, production process, specifically relate to
A kind of and special purpose device equipment for being used to carry out the reverse thrust door switch motion in the anti-pushing system of aero-engine long duration test.
Background technology
It is well known that the development of aero-engine, production are a jewels on industry manufacture field imperial crown.Aeroplane engine
The designing and manufacturing level of machine represents the top level of a national industrialized manufacturing technology.At present, in the world it is only beautiful,
English, Russia, method and China have the ability of independent development aero-engine.And comparatively, the development of the aero-engine in China
Horizontal gap also larger compared with advanced international standard.The development of aero-engine is related to machinery, electronics, optics, information
The every aspects such as science, material science, bioscience, management, it is current high-tech comprehensive utilization, great high wind is present
Danger and high investment.And wherein, it is huge to carry out various verification experimental verifications input, but is indispensable.
Aerojet formula engine is to spray high velocity air acting using jet pipe to produce thrust, aircraft taxi is taken off,
Aerial navigation, landing.The carrying capacity of large aircraft is increasing, and aircraft operation gross mass is very big.In aircraft landing, due to huge
Big kinetic energy inertia, make aircraft taxi stop distance very long, the runway of corresponding requirements landing is just very long.In order to shorten aircraft landing
The sliding distance run, although airplane design has mechanical braking device, but the needs for shortening landing distance can not be met.In order to enter
One step shortens ground run distance during aircraft landing, and thrust reverser is devised in aero-engine.As described above, aircraft is in cunning
It is to spray high velocity air acting by nozzle to produce the thrust to travel forward when row is taken off with aerial navigation.Aviation is sent out
The thrust reverser of motivation is that the high velocity air for spraying jet pipe during aircraft landing changes direction, so as to produce aircraft
The resistance of motion, make aircraft landing Distance Shortened, equivalent to playing a part of brake.Specific structure is the tail spray in engine
Pipe is designed with two fan reverse thrust doors, when aircraft landing, is controlled by hydro-mechanical unit and opens reverse thrust door, reverse thrust door sprays tail
The part high velocity air that pipe sprays is stopped, changes jet direction, produces the reaction force with aircraft traffic direction.Therefore,
Anti-thrust system is an important system of aero-engine, affects the security of aircraft operation.In order to verify propulsive thrust system
Security, reliability and the durability of system, in the development process of aero-engine, durable examination is carried out to reverse thrust door switch motion
It is necessary to test.
Aero-engine reverse thrust door switch motion durability test apparatus mainly switchs excercises control hydraulic system by reverse thrust door
Formed with reverse thrust door switch motion control test and display system, the driving force of hydraulic system comes from the motion of engine rotor.Due to
Long duration test is carried out in face of the motion of propulsive thrust door switch on ground, test number (TN) is needed up to thousand times, and experimentation cost cost is very huge,
And experimental enviroment is severe.Experimental rig is the control test and display system of hydraulic system configuration, and pressure, flow to hydraulic system are all entered
Row detection control, control test and display system is complicated, and experimental rig cost is high, and detection of the system to reverse thrust door actuation time does not conform to
Reason, reverse thrust door action, position display are indefinite.
The content of the invention
For the deficiency of the reverse thrust door switch motion durability test apparatus of prior art, the purpose of the present invention aims to provide one
The aero-engine reverse thrust door switch motion durability test apparatus of kind new construction, to reduce the cost of experimental rig, improves experiment
Logic reasonability, reliability and the operation of device work show definition.
For foregoing invention purpose, aero-engine reverse thrust door switch motion durability test apparatus provided by the invention, its
Forming mainly includes reverse thrust door switch excercises control hydraulic system and reverse thrust door switch motion control test and display system, the hydraulic pressure system
System includes hydraulic oil container, promotes left and right reverse thrust door to open two sets of hydraulic actuators with closing, and connection hydraulic oil container is made with hydraulic pressure
The hydraulic oil pipeline road and return line of dynamic cylinder, are arranged on pipeline road by motor-driven pressure oil pump and check valve,
The oil pressure cntrol valve group and control reverse thrust door that are arranged on pipeline road and return line open the switching control pilot group with closing；
The control test and display system includes the detection reverse thrust door lock status being made up of signalling means K1, auxiliary reclay JK1 and indicator lamp H1
Detection circuit, by the detection of signalling means K2, auxiliary reclay JK2 and indicator lamp H2 the detection switch control valve group state formed
Circuit, by the detection circuit of signalling means K3, auxiliary reclay JK3 and indicator lamp H3 the detection reverse thrust door location status formed, by
The reverse thrust door enabling timing circuit that enabling timer JS1, auxiliary reclay JK2 contacts, auxiliary reclay JK3 contacts are formed, by
Shutdown timer JS2, counter the pushing away of auxiliary reclay JK2 contacts, auxiliary reclay JK3 contacts, auxiliary reclay JK1 contacts composition
Door shutdown timing circuit.
In order to which the purpose of the present invention is better achieved, can further be taken on the basis of above-mentioned technical proposal of the present invention with
Lower technical measures, following technique measures can individually be taken, and also can be combined and take, or even take in the lump.
, can be between the oil pressure cntrol valve group and the switching control pilot group in the above-mentioned technical proposal of the present invention
Accumulator is set on hydraulic oil pipeline road, to adjust the hydraulic fluid pressure of pipeline road, set when the pressure of pipeline road is more than
During evaluation, the pressure energy for pipeline road of being attracted deposit by accumulator, pipeline road pressure is reduced；When the pressure of the hydraulic oil of pipeline road
When power is less than design load, pressure energy is discharged by accumulator, improves pipeline road pressure.
In the above-mentioned technical proposal of the present invention, safety valve can be set between hydraulic oil pipeline road and return line,
The import of safety valve is connected on the hydraulic oil pipeline road between oil pressure cntrol valve group and the switching control pilot group, safety valve
Outlet be connected on return line.Safety valve is set between hydraulic oil pipeline road and return line, when in pipeline road
Pressure be more than design safety pressure, safety valve starts, and a part of hydraulic oil in pipeline road is directly entered return line,
So as to which the pressure in pipeline road is reduced into design safety pressure.
, can be in oil in order to ensure that the hydraulic oil for entering oil pressure cntrol valve group is clean in the above-mentioned technical proposal of the present invention
Filter is set on hydraulic oil pipeline road before pressure control valve group.In order to ensure that the oil return for entering hydraulic oil container is cleaning liquid
Force feed, filter can be set on the return line before oil return enters hydraulic oil container.
In the above-mentioned technical proposal of the present invention, the pressure oil pump preferable volume formula pressure oil pump；Further preferred post
Plug pressure oil pump.
In the above-mentioned technical proposal of the present invention, the control preferential concentrated setting of test and display system shows distribution box in control
In；Indicator lamp H1, H2, H3, enabling timer JS1 and shutdown timer JS2 in control test and display system are arranged on control display
On the panel of distribution box.Control is shown is further typically provided with hydraulic oil pump start button, stop button, hydraulic pressure on panel for electricity distribution box
Oil pump run indicator, AC power indicator lamp, dc source indicator lamp and jerk manipulation knob.
Orientation up, down, left, right, before and after involved in the present invention, it is in face of the orientation where accompanying drawing.
Aero-engine reverse thrust door switch motion durability test apparatus provided by the invention is inventor to aeroplane engine
The switch motion of machine reverse thrust door has carried out deep analysis and research, has been fully understood by reverse thrust door opening, the control display logic closed
On the basis of design complete, the reverse thrust door of experimental rig switch excercises control hydraulic system, structure is very simple and practical reliable, greatly
Reduce manufacturing cost greatly；The reverse thrust door switch motion control test and display system of experimental rig, movement logic is switched according to reverse thrust door,
Reverse thrust door signalling means control circuit is dexterously devised, realizes the opening for accurately detecting reverse thrust door, shut-in time, detection letter
Number clearly.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of the reverse thrust door switch excercises control hydraulic system of experimental rig of the present invention；
Fig. 2 is the electrical block diagram of the reverse thrust door switch motion control test and display system of experimental rig of the present invention.
Fig. 3 is the reverse thrust door switch motion control test and display system control cabinet panel construction schematic diagram of experimental provision of the present invention.
The object of each shown by reference numeral mark is respectively in above-mentioned accompanying drawing：1- hydraulic oil containers；2- pressure oil pumps；3- pressurization oil
Pump motor；4- check valves；5- filters；6- oil pressure cntrol valve groups；7- accumulators；8- safety valves；9- switching control pilot groups；
10 with 11- hydraulic actuators；12- reverse thrust door open modes；13- reverse thrust door closed modes.
Embodiment
Embodiments of the invention are provided below in conjunction with the accompanying drawings, and are pushed away by the way that embodiment is counter to aero-engine of the present invention
The operation principle of door switch motion durability test apparatus is described further.
The present embodiment aero-engine reverse thrust door switch motion durability test apparatus, its structure as shown in Figure 1, Figure 2 with Fig. 3 institutes
Show, excercises control hydraulic system is switched by reverse thrust door and reverse thrust door switch motion control test and display system is formed.The reverse thrust door is opened
It is a set of self-enclosed hydraulic system to close excercises control hydraulic system, as shown in Figure 1.The plunger type that import is connected with hydraulic oil container 1
Pressure oil pump 2 exports after hydraulic oil is pressurizeed under the driving of motor 3, enters check valve 4.The effect of check valve is to prevent hydraulic pressure
Oily reverse flow.The hydraulic oil of check valve output is transported to oil pressure cntrol valve group 6 after being filtered by hydraulic oil filter 5.Oil pressure
The function of control valve group：The stabilization of pipeline road oil pressure, detects the pipeline road pressure behind valve group, works as pressure after holding valve group
During less than setting value, valve group is adjusted automatically, and the high pressure coming oil of pressure oil pump is transported into pipeline road, makes pipeline road pressure
Power increases；When pressure is higher than setting value, valve group connects the high pressure coming oil of force (forcing) pump and return line, pressure oil pump off-load,
In low-power circular flow.Space is isolated into by two parts by piston inside accumulator：Upper part is passed through authorized pressure
Nitrogen, lower part are connected with hydraulic oil pipeline road.When pipeline road pressure is more than setting oil pressure, pass through piston compressed nitrogen
Gas, hydraulic fluid pressure energy is stored, when pipeline road pressure is less than setting oil pressure, compressed nitrogen is by piston, to petroleum pipeline
Road releases energy, hydraulic fluid pressure needed for replenishment system when playing steady pressure and system acting.Safety valve 8 ensures pipeline road
Pressure is no more than permissible value：When pipeline road pressure is higher than setting value, safety valve connects pipeline road and return line, makes
Pipeline road pressure rolls back permissible value.Reverse thrust door is opened, closing control valve group is controlled by manual lever：When action bars is moved to
During anti-push position, high pressure liquid force feed is transported to the left chamber of hydraulic actuator 10,11, the right chamber of hydraulic actuator and oil return by valve group
Pipeline is connected, and hydraulic actuator piston rod stretches out, and promotes reverse thrust door to open；When action bars is withdrawn into positive push position, valve group will
High pressure liquid presses oil the right chamber for being transported to hydraulic actuator, and left chamber and the return line of hydraulic actuator are connected, and hydraulic actuator is lived
Stopper rod is retracted, and promotes reverse thrust door to close.
The reverse thrust door switchs motion control test and display system, and concentrated setting is in control shows distribution box, its circuit such as Fig. 2
It is shown, detection reverse thrust door lock status detection circuit is formed by signalling means K1, auxiliary reclay JK1 and indicator lamp H1；By signalling means
K2, auxiliary reclay JK2 and indicator lamp H2 form detection switch control valve group state detection circuit；By signalling means K3, it is middle after
Electrical equipment JK3 and indicator lamp H3 forms detection reverse thrust door location status detection circuit；By enabling timer JS1, auxiliary reclay JK2
Contact, auxiliary reclay JK3 contacts form reverse thrust door enabling timing circuit；Touched by shutdown timer JS2, auxiliary reclay JK2
Point, auxiliary reclay JK3 contacts, auxiliary reclay JK1 contacts form reverse thrust door shutdown timing circuit.Circuit operation principle is such as
Under：When reverse thrust door is in positive push position and locks, signalling means K1 is in operating state, and normally-closed contact is opened, auxiliary reclay
JK1 is failure to actuate, and signal lamp H1 does not work；Conversely, when reverse thrust door is opened and leaves positive push position, JK1 is acted, and signal lamp H1 is bright.When
Signalling means K2 is in operating state, and auxiliary reclay JK2 actions, signal lamp H2 is bright, shows to carry out anti-push operation.As signalling means K3
In operating state, auxiliary reclay JK3 actions, signal lamp H3 is bright, shows that reverse thrust door is opened in place.Reverse thrust door opening time is surveyed
Amount is completed by timer JS1：When operation is opened the door, shutdown control valve group opens reverse thrust door, relay JK2 actions, start the time
Timer JS1 timing, when reverse thrust door reaches anti-pushing, JK3 actions, timer JS1 stops timing, and screen display is shown at it
Reverse thrust door opening time.The measurement of reverse thrust door shut-in time is completed by timer JS2：When reverse thrust door is in open mode, operation is opened
When door, shutdown control valve group close reverse thrust door, relay JK2 is failure to actuate, relay JK1 actions, when reverse thrust door leaves anti-pushing,
JK3 is failure to actuate, and starts time timer JS2 timing, and when reverse thrust door reaches positive pushing (closing), JK1 is failure to actuate, timer
JS2 stops timing, and the screen display reverse thrust door shut-in time is shown at it.
Control, which is shown, is provided with indicator lamp H1, H2, H3 on panel for electricity distribution box, enabling timer JS1, shutdown timer JS2,
Start button, stop button, the hydraulic oil pump run indicator of hydraulic oil force (forcing) pump, AC power indicator lamp, dc source refer to
Show that lamp and jerk manipulation are turned round, as shown in Figure 3.
Claims (10)
1. a kind of aero-engine reverse thrust door switch motion durability test apparatus, it is characterised in that switch and move including reverse thrust door
Hydraulic system and reverse thrust door switch motion control test and display system are manipulated, the hydraulic system includes hydraulic oil container (1), promotes left and right
Reverse thrust door opens two sets of hydraulic actuators (10,11) with closing, and connects the hydraulic oil oil transportation of hydraulic oil container and hydraulic actuator
Pipeline and return line, the pressure oil pump (2) and check valve (4) driven on pipeline road by motor (3) is arranged on, is arranged on defeated
Oil pressure cntrol valve group (6) and control reverse thrust door on oil pipe line and return line open the switching control pilot group (9) with closing；Institute
Stating control test and display system is included by signalling means K1, auxiliary reclay JK1 and indicator lamp H1 the detection reverse thrust door lock status formed
Circuit is detected, by the inspection of signalling means K2, auxiliary reclay JK2 and indicator lamp H2 detection switch control valve group (9) state formed
Slowdown monitoring circuit, by the detection circuit of signalling means K3, auxiliary reclay JK3 and indicator lamp H3 the detection reverse thrust door location status formed,
The reverse thrust door enabling timing circuit being made up of enabling timer JS1, auxiliary reclay JK2 contacts, auxiliary reclay JK3 contacts,
It is made up of shutdown timer JS2, auxiliary reclay JK2 contacts, auxiliary reclay JK3 contacts, auxiliary reclay JK1 contacts anti-
Push shutdown timing circuit.
2. aero-engine reverse thrust door switch motion durability test apparatus according to claim 1, it is characterised in that in institute
State and accumulator (7) is set on the hydraulic oil pipeline road between oil pressure cntrol valve group (6) and the switching control pilot group (9).
3. aero-engine reverse thrust door switch motion durability test apparatus according to claim 2, it is characterised in that in liquid
Press oil and safety valve (8) is set between pipeline road and return line, the import of safety valve is connected to oil pressure cntrol valve group (6) and institute
State on the hydraulic oil pipeline road between switching control pilot group (6), the outlet of safety valve is connected on return line.
4. aero-engine reverse thrust door switch motion durability test apparatus according to claim 1, it is characterised in that in oil
Filter (5) is provided with hydraulic oil pipeline road before pressure control valve group (6).
5. aero-engine reverse thrust door switch motion durability test apparatus according to claim 1, it is characterised in that in liquid
Filter is provided with return line before force feed case.
6. aero-engine reverse thrust door switch motion durability test apparatus according to claim 1, it is characterised in that described
Pressure oil pump is positive displacement pressure oil pump.
7. aero-engine reverse thrust door switch motion durability test apparatus according to claim 6, it is characterised in that described
Positive displacement pressure oil pump is plunger type pressure oil pump.
8. the aero-engine reverse thrust door switch motion durability test apparatus according to one of claim 1 to 7, its feature exist
In the control test and display system concentrated setting is in control shows distribution box.
9. aero-engine reverse thrust door switch motion durability test apparatus according to claim 8, it is characterised in that control
Indicator lamp H1, H2, H3, enabling timer JS1 and shutdown timer JS2 in test and display system are arranged on control and show distribution box face
On plate.
10. aero-engine reverse thrust door switch motion durability test apparatus according to claim 8, it is characterised in that control
System is shown is provided with hydraulic oil pump start button, stop button, hydraulic oil pump run indicator, AC power on panel for electricity distribution box
Indicator lamp, dc source indicator lamp and jerk manipulation knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864039.1A CN107831017B (en) | 2017-09-22 | 2017-09-22 | Durability test device for switching motion of reverse thrust door of aircraft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864039.1A CN107831017B (en) | 2017-09-22 | 2017-09-22 | Durability test device for switching motion of reverse thrust door of aircraft engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107831017A true CN107831017A (en) | 2018-03-23 |
| CN107831017B CN107831017B (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710864039.1A Active CN107831017B (en) | 2017-09-22 | 2017-09-22 | Durability test device for switching motion of reverse thrust door of aircraft engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN107831017B (en) |
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| CN107831017B (en) | 2020-07-17 |
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