CN104019983B - A kind of device for testing reliability of cabin door lock for aircrafts - Google Patents
A kind of device for testing reliability of cabin door lock for aircrafts Download PDFInfo
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- CN104019983B CN104019983B CN201410279845.9A CN201410279845A CN104019983B CN 104019983 B CN104019983 B CN 104019983B CN 201410279845 A CN201410279845 A CN 201410279845A CN 104019983 B CN104019983 B CN 104019983B
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- hatch door
- fixture
- door
- loading
- crossbeam
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Abstract
The invention discloses a kind of device for testing reliability of cabin door lock for aircrafts, it comprises fixture and simulation hatch door and load charger；Described fixture comprises two pieces of main wallboards, this main wallboard generally L shape structure, is welded to connect integral by horizontal reinforcement each other, and its side is welded with countermure plate by horizontal reinforcement；Described simulation hatch door comprises simulation hatch door crossbeam, simulation hatch door longeron, boiler-plate door pivot and lock ring, wherein, described simulation hatch door crossbeam is arranged on the side of fixture, one end of described simulation hatch door longeron is integral with the side vertical welding of simulation hatch door crossbeam, and its other end is provided with described boiler-plate door pivot.The present invention is applicable to the situation of hatch door rotating shaft and cabin door lock latch hook shaft parallel, and assay device volume is little, can put in the combined environment test case of finite volume and test, and can be connected with the testing equipment such as vibration table, hydraulic power source simultaneously.
Description
Technical field
The present invention relates to the assay device field that air equipment is relevant, be specifically related to a kind of airplane cabin door lock reliable
Property assay device.
Background technology
The landing gear compartment door lock system of aircraft is by portions such as hatch door actuator, hatch door, lock ring and cabin door locks
Divide and constitute.Wherein cabin door lock is for locking hatch door after taking off, and unlocks hatch door before aircraft landing.
Taking off the stage, first received upper hatch door by hatch door actuator, then cabin door lock is closed and locks hatch door,
Cabin door lock should be able to hook latch hook normal switching-off in the process, otherwise can cause aircraft mission failure.Flying
Machine mission phase, cabin door lock should remain at locking state, and can bear what hatch door was transmitted by lock ring
The load such as aerodynamic force and inertia force, otherwise can cause aircraft mission failure, and threaten flight safety.Flying
Machine landing phases, first cabin door lock are opened, and are then put down hatch door by hatch door actuator.If cabin door lock can not
Normally open, then undercarriage can not normally put down, it will directly threatens flight safety, it is possible to cause and fly
The major accident that machine crashes.
The reliability of cabin door lock is to be directly connected to flight safety, in order to assess existing cabin door lock design
Reliability index, the dominant failure mode of exposure compartment door lock and weak link, it is thus achieved that affect what cabin door lock lost efficacy
Important environmental factors, and obtain the corrective measure of reliability level improving cabin door lock, it is achieved cabin door lock can
Increase by property, it is necessary to cabin door lock is carried out reliability test and it needs to one can be carried out in the face of cabin door lock on ground
The device of reliability test.
But the existing reliability test method for motion and device the most only consider a small amount of environment because of
Element, the environmental condition of simulation is the truest.It addition, described by patent of invention ZL201210033851.7 can
It is only applicable to the situation that hatch door rotating shaft is vertical with cabin door lock latch hook rotating shaft, it is impossible to be applicable to two by property assay device
The situation that person is parallel.
Summary of the invention
Volume is little, simple in construction, processing request are low to it is an object of the present invention to provide one, can coordinate integrated environment
Proof box and hydraulic power source load height epidemic disaster, salt fog, vibration, hatch door load, liquid simultaneously to cabin door lock
The device for testing reliability of cabin door lock for aircrafts of the multiple stress of pressure pressure.
In order to solve the problem in the presence of background technology, it comprises fixture and simulation hatch door and load loads
Device；Described fixture comprises two pieces of main wallboards 1, this main wallboard 1 generally L shape structure, leads to each other
Crossing horizontal reinforcement 10 and be welded to connect integral, its side is welded with countermure plate 8 by horizontal reinforcement 10；
Described simulation hatch door comprises simulation hatch door crossbeam 2, simulation hatch door longeron 13, boiler-plate door pivot 12 and lock
Ring 14, wherein, described simulation hatch door crossbeam 2 is arranged on the side of fixture, described simulation hatch door longeron 13
One end with simulation hatch door crossbeam 2 side vertical welding integral, its other end is provided with described simulation
Hatch door rotating shaft 12, the two ends of this boiler-plate door pivot 12 are rotatably assorted with simulation hatch door base 11, described
Simulation hatch door base 11 is arranged in fixture on the lateral surface of countermure plate 8, described simulation hatch door longeron 13
Lock ring 14 is installed on upper end face；Described load charger comprises spring 3, loads nut 4, loading horizontal stroke
Beam 5, loading bolt 6 and loading bolt base 7, wherein, the upper end of described spring 3 and the simulation in fixture
Hatch door crossbeam 2 is connected, and its lower end is fixing with described loading crossbeam 5 to be connected, described loading crossbeam 5
Two ends mirror image offer bolt hole, be inserted with loading bolt 6, the top of described loading bolt 6 in this bolt hole
Being connected with loading nut 4, be fixed on loading bolt base 7 bottom it, the welding of this loading bolt base 7 is solid
It is scheduled on the bottom of main wallboard 1 in fixture；In described fixture, the side of main wallboard 1 upper top is provided with lock support
15, this lock support 15 is provided with cabin door lock 16.
Adjustment pad 9 it is provided with between bottom surface and the main wallboard 1 of fixture of described simulation hatch door longeron 13.
The nut of described loading bolt 6 is rectangular configuration.
In described fixture, the bottom of main wallboard 1 offers groove, is provided with and its gap grafting solid in this groove
The fixed loading bolt base 7 connected.
Owing to have employed above technical scheme, the method have the advantages that be applicable to hatch door rotating shaft with
The situation of cabin door lock latch hook shaft parallel, assay device volume is little, can put the integrated environment of finite volume into
Proof box is tested, and can be connected with the testing equipment such as vibration table, hydraulic power source simultaneously, thus can be to cabin
Door lock loads the multiple stress such as high/low temperature, salt fog, vibration, hatch door load, hydraulic load, sand dust, institute's mould
The environmental condition intended is the truest.Owing to the effect of simulation hatch door and lock ring is closer to truth, lock
Also it is closer to truth with the relative motion relation of latch hook.Aerodynamic load suffered by hatch door can be free
Adjusting, assay device has stronger versatility, can carry out locking fault simulating test.Assay device parts
Material includes steel and aluminium alloy, and manufacturing process includes common machining and welding, and processing cost is low.Remove
Outside assay device, it is only necessary to the testing equipments such as combined environment test case, vibration table, hydraulic power source can be to cabin door lock
Carrying out ground reliability test, therefore relative to flight test, its experimentation cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly that the present invention, below in conjunction with accompanying drawing, embodiment is briefly described.
Fig. 1 is the perspective view of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the left view of the present invention；
Fig. 4 is the top view of the present invention；
Fig. 5 is the structural representation of the charger in the present invention；
Fig. 6 is the axonometric chart of fixture in the present invention；
Fig. 7 is the axonometric chart of lock support in the present invention；
Fig. 8 is loading bolt base and the connected mode schematic diagram of loading bolt in the present invention；
Fig. 9 is the axonometric chart simulating hatch door in the present invention；
Wherein:
The most main wallboard, 2. simulation hatch door crossbeam, 3. spring, 4. loading nut, 5. loading crossbeam, 6. loading
Bolt, 7. loading bolt base, 8. countermure plate, 9. adjustment pad, 10. horizontal reinforcement, 11. moulds
Intend hatch door base, 12. boiler-plate door pivots, 13. simulation hatch door longeron, 14. lock rings, 15. lock supports
16. cabin door locks.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect,
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear,
It is fully described by.
Embodiment 1
Referring to Fig. 1-9, it comprises fixture and simulation hatch door and load charger；Described fixture comprises two
The main wallboard of block 1, this main wallboard 1 generally L shape structure, each other by the welding of horizontal reinforcement 10 even
Being connected into one, its side is welded with countermure plate 8 by horizontal reinforcement 10；Described simulation hatch door comprises mould
Intend hatch door crossbeam 2, simulation hatch door longeron 13, boiler-plate door pivot 12 and lock ring 14, wherein, described mould
Intend hatch door crossbeam 2 and be arranged on the side of fixture, one end of described simulation hatch door longeron 13 and simulation hatch door crossbeam
The side vertical welding of 2 is integral, and its other end is provided with described boiler-plate door pivot 12, this boiler-plate
The two ends of door pivot 12 are rotatably assorted with simulation hatch door base 11, and described simulation hatch door base 11 is arranged on
In fixture on the lateral surface of countermure plate 8, the upper end face of described simulation hatch door longeron 13 is provided with lock ring 14；
Described load charger comprises spring 3, loads nut 4, loading crossbeam 5, loading bolt 6 and load
Bolt base 7, wherein, the upper end of described spring 3 is connected, under it with the simulation hatch door crossbeam 2 in fixture
Holding be connected fixing with described loading crossbeam 5, the described two ends mirror image loading crossbeam 5 offers bolt hole,
Being inserted with loading bolt 6 in this bolt hole, the top of described loading bolt 6 is connected with loading nut 4, bottom it
Being fixed on loading bolt base 7, this loading bolt base 7 is weldingly fixed on the end of main wallboard 1 in fixture
Portion.
Adjustment pad 9 it is provided with between bottom surface and the main wallboard 1 of fixture of described simulation hatch door longeron 13.
In described fixture, the side of main wallboard 1 upper top is provided with lock support 15, and this lock support 15 is provided with
Cabin door lock 16.
The nut of described loading bolt 6 is rectangular configuration.
In described fixture, the bottom of main wallboard 1 offers groove, is provided with and its gap grafting solid in this groove
The fixed loading bolt base 7 connected.
Embodiment 2
In figures 1-4, main wallboard 1, countermure plate 8 and horizontal reinforcement 10 form the fixture of assay device,
Each parts connected mode is welding.
In figs. 1-5, simulation hatch door crossbeam 2, simulation hatch door longeron 13, boiler-plate door pivot 12 and lock ring
14 composition simulation hatch doors, connected mode is welding.Cabin door lock motor function is formed by simulation hatch door and lock support
Analog systems.Cabin door lock 16 is arranged on lock support 15, and lock support 15 is arranged on fixture top.Boiler-plate
Door is arranged in the middle part of fixture by simulation hatch door base 11.
In figs. 1-5, spring 3, load nut 4, load at the bottom of crossbeam 5, loading bolt 6 and loading bolt
Seat 7 composition carries load charger.Spring 3 upper end is arranged on simulation hatch door crossbeam 2, and lower end hangs over and adds
Carrying on crossbeam 5, spring 3 should have enough coefficient of elasticity and meet the requirement that load load adds.Loading bolt 6
Passing from below through the bolt hole on loading bolt base 7, its screw cap end is contained in the rectangle of loading bolt base 7
In step-like depression, as shown in Figure 8.Loading bolt base 7 is arranged on assay device lower end.When test dress
Putting after being installed on a vibration table by bolt, loading bolt 6 is compressed by assay device and vibration table surface,
Make it can not be freely movable.After loading bolt 6 is installed, load crossbeam 5 respectively by the bolt at its two ends
Hole is connected with two loading bolts 6.When loading nut 4 and being screwed down, loading crossbeam 5 is driven to move down,
And by spring elongation, thus realize the loading of load.
In figure 6, fixture is by the 2 of both sides main wallboards 8,6 horizontal reinforcements 10 of 1,1 countermure plate
It is welded.Main wallboard 1 is formed by the aluminium alloy plate integral cutting of suitable thickness.Each main wallboard 1 lower end
Crossbeam on be respectively arranged with the bolt hole of 4 vertical directions, in order to attachment means and vibration table.Main wallboard 1 side
Higher, opposite side is relatively low, overall L-shape structure.A higher upper lateral part has horizontal bolt hole, uses
Lock support 15 is installed.Relatively low side is used for matching with simulation hatch door.There are two squares main wallboard 1 lower end
The groove of shape, is used for installing loading bolt base 7.
In figure 6, the flat shape of countermure plate 8 is " mouth " font, and there are 4 bolts hole upper end, are used for
Simulation hatch door base 11 is installed.There is the bolt hole of two vertical directions lower end, for being connected with vibration table.Respectively
Connected by transverse connection 10 between individual main wallboard 1 and countermure plate 8.For ensureing the vibration characteristics of fixture,
Connected mode between transverse connection with wallboard is for welding.
Laterally reinforcement 10 adds part for machine, the aluminium alloy plate with main wallboard 1 same thickness process, its
Shape of cross section is " u "-shaped.
In the figure 7, lock support 15 is formed by the suitable Plate Welding of thickness.Steel outside lock support 15
Having 3 horizontal bolts hole on plate, in order to install cabin door lock 16, its position is joined according to the interface of cabin door lock 16
Number determines.The steel plate of its both sides has the bolt hole corresponding with fixture, in order to connect lock support 15 He
Fixture.
In fig .9, simulation hatch door is simulated hatch door longeron 13,1 by 1 boiler-plate door pivot 12,2
The simulation part such as hatch door crossbeam 2 and 1 lock ring 14 is welded.Hatch door rotating shaft 12 is by suitable diameter and wall
Thick seamless steel pipe shape extrusion forms, and its two ends are connected with simulation hatch door base 11 by revolute pair respectively.
The cooperation face at the two ends of boiler-plate door pivot 12 carries out polish respectively, to ensure its surface roughness and cylinder
Degree.Simulation hatch door longeron 13 is formed by the square steel tube shape extrusion of suitable cross-section size.Simulation hatch door crossbeam 2
Processed by the steel plate of suitable thickness, on the downside of it, have the through hole of 3 suitable diameters, in order to install spring.
Lock ring 14 adds part for machine, and its overall dimensions having the parts such as bearing pin and sleeve, bearing pin and sleeve installed above is joined
Several determine according to practical situation.
Simulation hatch door base 4 adds part for machine, and it is connected with boiler-plate door pivot 12 by revolute pair, and passes through
Bolt is connected with fixture.
Loading crossbeam 5 and add part for machine, its two ends are respectively arranged with the bolt hole of a vertical direction, for being installed
On loading bolt 6.Load crossbeam 5 mid portion and have 3 horizontal through holes, in order to install spring.
The flat shape of loading bolt base 7 is H-shaped, and its primary structure is longitudinal support arm of two and one
Lateral arms, as shown in Figure 6.The cross sectional dimensions of longitudinal support arm of loading bolt base 7 and main wallboard 1
The rectangular recess of lower end matches, and is respectively arranged with 3 bolts hole on two longitudinal support arms, the position of bolt hole with
Match in bolt hole position on main wallboard lower end and vibration table.Lateral arms two ends are respectively arranged with 1 for pacifying
The bolt hole of dress loading bolt 6, and have rectangular recess in the downside of bolt hole, it is used for and loading bolt 6
Match in rectangle termination.
Loading bolt 6 adds part for machine, and it should have enough strength and stiffness, and its lower end is rectangle termination,
As shown in Figure 6.
In FIG, adjusting pad 9 and be made up of steel plate, its thickness determines according to practical situation.It can lead to
Cross the connected modes such as bolt and be fixed on main wallboard 1.
The present embodiment replaces the true cabin of aircraft by using a simulation hatch door simplifying also minification
Door, simulation hatch door can rotate about axis rotate, hatch door rotation axis with latch hook rotation axis to parallel.
Simulation hatch door is connected with two simulation hatch door bases respectively by revolute pair, and simulation hatch door base passes through spiral shell respectively
Tether and the mode such as connect and be connected with fixture.The modes such as lock ring is bolted are fixedly arranged on simulation hatch door, with lock
Relative position consistent with reality.Between simulation hatch door and wallboard, adjustment pad is installed, by changing difference
The pad that adjusts of thickness controls to lock the position of front simulation hatch door.
Last it is noted that above example is only in order to illustrate technical scheme, rather than it is limited
System；Although the present invention being described in detail with reference to previous embodiment, those of ordinary skill in the art
Should be appreciated that the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a device for testing reliability of cabin door lock for aircrafts, it is characterised in that it comprise fixture and simulation hatch door with
And load charger；Described fixture comprises two pieces of main wallboards (1), and this main wallboard (1) is generally
L shape structure, is welded to connect integral by horizontal reinforcement (10) each other, and its side is passed through
Laterally reinforcement (10) is welded with countermure plate (8)；Described simulation hatch door comprises simulation hatch door crossbeam
(2), hatch door longeron (13), boiler-plate door pivot (12) and lock ring (14) are simulated, wherein, described
Simulation hatch door crossbeam (2) be arranged on the side of fixture, one end of described simulation hatch door longeron (13)
Integral with the side vertical welding of simulation hatch door crossbeam (2), its other end is provided with described mould
Intending hatch door rotating shaft (12), the two ends of this boiler-plate door pivot (12) rotate with simulation hatch door base (11)
Coordinating, described simulation hatch door base (11) is arranged in fixture on the lateral surface of countermure plate (8),
On the upper end face of described simulation hatch door longeron (13), lock ring (14) is installed；Described load adds and carries
Put and comprise spring (3), loading nut (4), loading crossbeam (5), loading bolt (6) and loading bolt
Base (7), wherein, the upper end of described spring (3) is connected with simulation hatch door crossbeam (2) in fixture
Connecing, its lower end is fixing with described loading crossbeam (5) to be connected, the two ends of described loading crossbeam (5)
Mirror image offers bolt hole, is inserted with loading bolt (6) in this bolt hole, described loading bolt (6)
Top is connected with loading nut (4), is fixed on loading bolt base (7), this loading spiral shell bottom it
Bolt base (7) is weldingly fixed on the bottom of main wallboard (1) in fixture；Main wallboard (1) in described fixture
The side of upper top is provided with lock support (15), and this lock support (15) is provided with cabin door lock (16).
A kind of device for testing reliability of cabin door lock for aircrafts the most according to claim 1, it is characterised in that institute
State and be provided with adjustment pad between bottom surface and the main wallboard (1) of fixture of simulation hatch door longeron (13)
(9)。
A kind of device for testing reliability of cabin door lock for aircrafts the most according to claim 1, it is characterised in that institute
The nut stating loading bolt (6) is rectangular configuration.
A kind of device for testing reliability of cabin door lock for aircrafts the most according to claim 1, it is characterised in that institute
State the bottom of main wallboard (1) in fixture and offer groove, be provided with in this groove with its gap grafting also
The fixing loading bolt base (7) connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279845.9A CN104019983B (en) | 2014-06-23 | 2014-06-23 | A kind of device for testing reliability of cabin door lock for aircrafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279845.9A CN104019983B (en) | 2014-06-23 | 2014-06-23 | A kind of device for testing reliability of cabin door lock for aircrafts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019983A CN104019983A (en) | 2014-09-03 |
| CN104019983B true CN104019983B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279845.9A Expired - Fee Related CN104019983B (en) | 2014-06-23 | 2014-06-23 | A kind of device for testing reliability of cabin door lock for aircrafts |
Country Status (1)
| Country | Link |
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| CN (1) | CN104019983B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841951B (en) * | 2016-05-25 | 2018-07-13 | 西北工业大学 | A kind of improved aircraft landing gear cabin door lock experimental rig |
| CN108801617A (en) * | 2018-06-12 | 2018-11-13 | 西北工业大学 | A kind of load-measuring device for cabin door lock reliability test |
| CN109186965A (en) * | 2018-08-03 | 2019-01-11 | 西北工业大学 | A kind of aviation cabin door lock change load testing machine |
| CN111912591A (en) * | 2020-07-27 | 2020-11-10 | 中国第一汽车股份有限公司 | Vibration test device for automobile door cover lock parts |
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2014
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|---|---|---|---|---|
| US5936167A (en) * | 1998-03-10 | 1999-08-10 | Chrysler Corporation | Door assembly testings simulator |
| CN101504332A (en) * | 2009-02-16 | 2009-08-12 | 中国人民解放军理工大学工程兵工程学院 | Simulation experiment apparatus for emergency opening of service cabin door in passenger plane test flight |
| CN102530265A (en) * | 2012-02-15 | 2012-07-04 | 西北工业大学 | Device for testing reliability of cabin door lock for aircrafts |
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| CN103129749A (en) * | 2013-02-26 | 2013-06-05 | 西北工业大学 | Test rack for multi-point locking mechanisms |
Non-Patent Citations (2)
| Title |
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| 基于杆长误差的飞行器货舱门锁机构运动精度分析研究;刘霞等;《机械科学与技术》;20121130;第31卷(第11期);全文 * |
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