CN103983444B - For the vertical experimental rig of undercarriage hatch door uplock reliability test - Google Patents
For the vertical experimental rig of undercarriage hatch door uplock reliability test Download PDFInfo
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- CN103983444B CN103983444B CN201410215944.0A CN201410215944A CN103983444B CN 103983444 B CN103983444 B CN 103983444B CN 201410215944 A CN201410215944 A CN 201410215944A CN 103983444 B CN103983444 B CN 103983444B
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- plate door
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Abstract
The present invention proposes a kind of vertical experimental rig for undercarriage hatch door uplock reliability test, formed by supporting mechanism, boiler-plate door and drive unit, hatch door uplock, boiler-plate door and drive unit to be tested are installed on supporting mechanism, supporting mechanism is connected with external vibration testing stand, drive unit drives the motion of boiler-plate door, and boiler-plate door comprises lock ring, lock ring support component, boiler-plate door frame and disk spring. Apparatus of the present invention volume is little, lightweight; Can be arranged in environmental temperature experiment case, and meet the weight requirement of shake table; Coordinate shake table, can realize the loading of vibration stress; Fluid,matching pressing system, the work that can realize experimental cabin door lock triggers; Can simulate the loading of aerodynamic force; The environmental condition of this unit simulation and operating mode are comparatively true, and this device has certain versatility, can carry out the reliability test of principle of similitude cabin door lock; This experimental rig processing cost is lower, and experimentation cost is low.
Description
Technical field
The present invention relates to aircraft reliability test field, be specially a kind of for undercarriage hatch door uplock reliabilityThe vertical experimental rig of test.
Background technology
Aircraft landing gear system comprise landing gear mechanism assembly, undercarriage door and actuator, upper the next cabin door lock and auxiliaryHelp the complication system of sensor and hydraulic control system composition, have that quality is large, principle is complicated, the high spy of instructions for usePoint; Can this system normally work is to be related to that can aircraft finish the work on request and ensure safe essential condition, isEnsure the normal key position using of aircraft. Undercarriage hatch door uplock (hereinafter to be referred as hatch door uplock) is to closeBeing the critical product that can hatch door normally work, is the critical product that affects Landing Gear System work. Hatch door uplock is logicalOften be made up of hydraulic actuator, mechanism member, signal transducer and shell etc., working environment has high and low temperature alternative and becomesThe feature of changing, exist oscillating load, service load alternately to change, job requirement is included under design condition and normally works,The fault of Flight Safety does not make a difference.
Along with the continuous growth of industrial ability and instructions for use in recent years, by traditional Aero-Space spring lock class mechanism evolutionHatch door uplock has started to move towards application. Compared with traditional Aero-Space spring lock, this class new design liquid collecting pressure, machineryIn one, can realize passive triggering work, simplification system control logic, duty output in real time etc. with Electronic ControlFunction, and good integrity, have the simple feature of maintenance. For coordinating the work characteristics of undercarriage door circular-rotation,The movement locus that this series products using in airborne vehicle is to target---being hatch door lock ring---requires as curve, thisRequire also different compared with traditional mechanism. For ensureing that this type of novel product can meet life of product and function at workReliability requirement, and provide foundation for continuing research and development improvement product, must before formally coming into operation, product carry out reliabilityTest.
Current problem is that existing undercarriage hatch door uplock reliability test is to such product testing requirementCan not reach requirement, conventionally not there is driver part, can not under condition of work, trigger the machinery dress of hatch door uplockPut, can not trigger this type of hatch door uplock work, thereby realized the relevant requirements of reliability test.
Summary of the invention
The object of the invention is: for meeting the requirement of the novel uplock reliability test of undercarriage hatch door, provide onePlant novel reliability test, can consider that multiple environmental factor, service load and different designs operating mode are upper to hatch doorThe evolution of lock reliability and the coupling influence effect in life-span, can realize the simulation of the motor function to hatch door uplock, can be sameIn time, applies oscillating load, simulates the multiple stress such as aerodynamic force load, high low temperature service load hatch door uplock, can rootRequirement according to different designs operating mode is carried out reliability testing to hatch door uplock, and boiler-plate door uplock exists more trulyCondition of work on aircraft and working environment.
Technical scheme of the present invention is:
Described a kind of vertical experimental rig for undercarriage hatch door uplock reliability test, is characterized in that:Formed by supporting mechanism, boiler-plate door and drive unit;
Hatch door uplock, boiler-plate door and drive unit to be tested are installed on supporting mechanism, and support machineStructure is connected with external vibration testing stand; Arc guide barrel for limiting lock ring movement locus is also installed on supporting mechanism,And the slide rail sliding for boiler-plate door, Brake Block is installed, when boiler-plate door is subject to drive unit on slide railWhen effect moves to Brake Block along slide rail, the lock ring in boiler-plate door triggers hatch door uplock work to be tested;
Boiler-plate door comprises lock ring, lock ring support component, boiler-plate door frame and disk spring; Boiler-plate doorframeSliding bearing is installed, for coordinating with the slide rail of installing on supporting mechanism on frame; Lock ring support component comprises that lock ring props upFrame, spring guide, guide rod sliding bearing; Lock ring one end and lock ring are rotatably assorted by lock pin, and the other end and spring are ledBoom end is rotatably assorted by lock pin, and guide rod sliding bearing, spring shim, dish-shaped bullet are installed on spring guide successivelySpring and guide rod locating piece, spring guide can be along guide rod sliding bearing rectilinear motion, and guide rod locating piece and spring guide are fixedConnect, disk spring two ends are retrained by guide rod locating piece and spring shim, and spring shim is subject to guide rod sliding bearing spacing;Guide rod sliding bearing is fixed on boiler-plate door frame.
Beneficial effect
Effect of the present invention is: this experimental rig volume is little, lightweight; Can be arranged in environmental temperature experiment case, andMeet the weight requirement of shake table; Coordinate shake table, can realize the loading of vibration stress; Fluid,matching pressing system, can be realThe work of existing experimental cabin door lock triggers; Can simulate the loading of aerodynamic force; The environmental condition of this unit simulation and operating mode are comparativelyTruly, this device has certain versatility, can carry out the reliability test of principle of similitude cabin door lock; This experimental rig addsWork cost is lower, and experimentation cost is low.
Brief description of the drawings
Accompanying drawing 1 is stereogram of the present invention;
Accompanying drawing 2 is experimental rig supporting construction decomposed views;
Accompanying drawing 3 is drive unit three-dimensional views;
Accompanying drawing 4 is connection diagrams of drive unit and supporting construction;
Accompanying drawing 5 is boiler-plate door schematic diagrames;
Accompanying drawing 6 is main assemblage of spring schematic diagrames of boiler-plate door
Accompanying drawing 7 is housing assembly schematic diagrames of boiler-plate door
Accompanying drawing 8 is drive unit and boiler-plate door connection diagram
Accompanying drawing 9 is boiler-plate door and supporting construction connection diagram
In the accompanying drawings: 1: connect base; 2: primary load bearing plate; 3: assistant reinforcement muscle; 4: test hatch doorLock fixed head; 5: front buttress brace; 6: rear guide groove; 7: front guide slot; 8: slide rail bearing; 9: slide rail; 10: upper systemMoving seat; 11: mount pad in pressurized strut; 12: mount pad under pressurized strut; 13: hydraulic actuator; 14: lock ring; 15:Lock ring support; 16: lock pin; 17: guide groove bearing; 18: general short pin; 19: spring guide; 20: guide rod locationPiece; 21: guide rod sliding bearing; 22: spring regulates pad; 23: disk spring; 24: inside casing upper plate; 25: inFrame side plate; 26: interior frame bottom plate; 27: linear slide bearing; 28: interior frame bottom plate contiguous block; 29: lower Brake Block.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described:
A kind of vertical experimental rig for undercarriage hatch door uplock reliability test in the present embodiment is by supportingMechanism, boiler-plate door and drive unit composition.
Hatch door uplock, boiler-plate door and drive unit to be tested are installed on supporting mechanism, to be testedThe installation site of hatch door uplock is identical with actual working state, and this supporting construction is also that experimental rig and test are shaken simultaneouslyThe connecting interface of moving platform.
With reference to accompanying drawing 2, connect base 1, primary load bearing plate 2 and assistant reinforcement muscle 3 and link together by welding manner,Be the stressed main body of experimental rig, connect on base 1 and be processed with the bolt hole being connected with shake table, by shaking with testMoving platform connects, with analog vibration environment. Experimental cabin door lock fixed head 4, rear guide groove 6 are by bolt and primary load bearing plate 2Connect; Front buttress brace 5 is connected with assistant reinforcement muscle 3 by bolt; 7 of front guide slot are bolted in front reinforcementBeam 5. Also mode and primary load bearing plate 2 with bolts of upper Brake Block 10, lower Brake Block 29 and slide rail bearing 8Connect, on slide rail bearing 8, be fixed with slide rail 9. The above part has formed the supporting construction part of experimental rig.
Hatch door uplock to be tested is just arranged on primary load bearing plate with overtesting cabin door lock fixed head 4, and by testCabin door lock fixed head 4 is determined installation site. Supporting construction, not only for installation test cabin door lock, is also boiler-plate simultaneouslyDoor and drives structure provide installation site. In supporting construction, also comprise that the arc for limiting lock ring movement locus leadsGroove, i.e. front guide slot 7 and rear guide groove 6, this guide groove makes the lock ring in boiler-plate door fill in test according to planned coursePut middle motion. Upper Brake Block 10 in supporting construction plays crucial position-limiting action, when boiler-plate door is drivenWhen moving device effect moves to upper Brake Block 10 along slide rail, the lock ring in boiler-plate door triggers cabin to be tested justThe work of door uplock, after this hatch door uplock to be tested continues to drive lock ring along guide groove movement, until reach lock-bitPut.
With reference to accompanying drawing 3, drive unit is mainly made up of hydraulic actuator and union piece, hydraulic actuator 13, startOn cylinder, under mount pad 11 and pressurized strut, mount pad 12 interconnects. As shown in Figure 4, in pressurized strut, installUnder seat 11 and pressurized strut, mount pad 13 is bolted on primary load bearing plate 2. These three parts have formed test dressThe drive unit part of putting, is to realize the motion of boiler-plate door, and the key that completes experimental cabin door lock workflow drivesPart. Hydraulic actuator is responsible for driving the motion of boiler-plate door, completes the function that triggers experimental cabin door lock, is to realizeThe vitals of this device work; Hydraulic actuator is connected with hydraulic system by hydraulic tube, and hydraulic system is drives structureHydraulic-driven power is provided. Union piece is connected hydraulic actuator with supporting construction, simultaneously also by hydraulic actuator andBoiler-plate door links together.
Shown in accompanying drawing 5, boiler-plate door comprises lock ring, lock ring support component, boiler-plate door frame and dishSpring, this structure is the pass of realizing the triggering of experimental cabin door lock, loading simulation aerodynamic loading and simulation lock ring movement locusBond structure. Lock ring and lock ring support component are the targets of experimental cabin door lock, in test load are directly passed toExperimental cabin door lock. Disk spring assembly is for Simulated Aerodynamic Loads, according to the designing requirement of experimental cabin door lock, dishSpring is chosen accordingly and is combined, and provides corresponding elastic force for Simulated Aerodynamic Loads under design conditions. MouldIntend door members for lock ring and lock ring support component and disk spring assembly provide support, simultaneously again with supporting construction andDrives structure connects. Boiler-plate door is the core component of realizing this experimental rig correlation function.
As shown in Figure 7, inside casing upper plate 24, inside casing side plate 25 and interior frame bottom plate 26 utilize bolt to be connected with interior frame bottom platePiece 28 interconnects and forms a whole; The side of inside casing side plate 25 is connected with linear slide bearing 27. At test dressWhile putting work, linear slide bearing 27 is realized and being slided up and down on slide rail 9, makes to glide on the housing assembly shown in Fig. 7Moving, complete the passive job requirement of setting out of experimental cabin door lock, the power that housing assembly slides comes from driving shown in Fig. 3Moving device.
As shown in Figure 6, lock ring support component and disk spring are the pass bonds of simulating aerodynamic force in boiler-plate doorStructure part. Lock ring support component comprises lock ring support 15, spring guide 19, guide rod sliding bearing 21. Lock ring one endBe rotatably assorted by lock pin 16 with lock ring, the other end and spring guide end are rotatably assorted by lock pin. On spring guideGuide rod sliding bearing 21, spring shim 22, disk spring 23 and guide rod locating piece 20 are installed successively, spring guideCan be along guide rod sliding bearing rectilinear motion, guide rod locating piece is fixedly connected with spring guide, and disk spring two ends are subject to guide rodLocating piece and spring shim constraint, spring shim is subject to guide rod sliding bearing spacing. Guide rod sliding bearing 21 connects by boltBe connected on inside casing upper plate 24. Guide groove bearing 17 is installed on lock pin 16; Guide groove bearing 17 can be at rear guide groove 6With slip in front guide slot 7, this makes lock pin 16 and lock ring 14 according to movement locus motion given in advance, make examinationThe course of work of experiment device meets test requirements document. In Fig. 8, the drive unit of experimental rig and boiler-plate door adoptThe mode of fixed connection links together; In Fig. 9, boiler-plate door can be in the cunning of the supporting construction of experimental rigOn rail 9, realize and sliding up and down, this can complete lock trigger process and the lock ring decentralization process of unblanking of experimental cabin door lock,Thereby meet the test requirements document of experimental cabin door lock.
In test is carried out, supporting construction is fixed in environment temperature control box, and is connected with test shake table; Drive unitBe connected with experimental liquid pressing system, according to the hydraulic flow process designing in advance, drive the work of boiler-plate door, realizeThe triggering work of experimental cabin door lock; Boiler-plate door is according to the designing requirement of experimental cabin door lock, at experimental cabin door lockReliability test in simulation aerodynamic force is provided.
Claims (1)
1. for a vertical experimental rig for undercarriage hatch door uplock reliability test, it is characterized in that: by propping up
Support mechanism, boiler-plate door and drive unit composition;
Hatch door uplock, boiler-plate door and drive unit to be tested are installed on supporting mechanism, and support machineStructure is connected with external vibration testing stand; Arc guide barrel for limiting lock ring movement locus is also installed on supporting mechanism,And the slide rail sliding for boiler-plate door, Brake Block is installed, when boiler-plate door is subject to drive unit on slide railWhen effect moves to Brake Block along slide rail, the lock ring in boiler-plate door triggers hatch door uplock work to be tested;
Boiler-plate door comprises lock ring, lock ring support component, boiler-plate door frame and disk spring; Boiler-plate doorframeSliding bearing is installed, for coordinating with the slide rail of installing on supporting mechanism on frame; Lock ring support component comprises that lock ring props upFrame, spring guide, guide rod sliding bearing; Lock ring support one end and lock ring are rotatably assorted by lock pin, the other end and bulletSpring guide rod end is rotatably assorted by lock pin, and guide rod sliding bearing, spring shim, dish are installed on spring guide successivelyShape spring and guide rod locating piece, spring guide can be along guide rod sliding bearing rectilinear motion, guide rod locating piece and spring guideBe fixedly connected with, disk spring two ends are retrained by guide rod locating piece and spring shim, and spring shim is limit by guide rod sliding bearingPosition; Guide rod sliding bearing is fixed on boiler-plate door frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410215944.0A CN103983444B (en) | 2014-05-21 | 2014-05-21 | For the vertical experimental rig of undercarriage hatch door uplock reliability test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410215944.0A CN103983444B (en) | 2014-05-21 | 2014-05-21 | For the vertical experimental rig of undercarriage hatch door uplock reliability test |
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| CN103983444A CN103983444A (en) | 2014-08-13 |
| CN103983444B true CN103983444B (en) | 2016-05-25 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163250B (en) * | 2014-08-19 | 2016-08-24 | 西北工业大学 | A kind of reliability test for undercarriage cabin door lock system |
| 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 |
| CN106610338B (en) * | 2016-12-26 | 2018-11-13 | 西北工业大学 | High rigidity experimental rig for cabin door lock reliability test |
| CN107084834B (en) * | 2017-04-21 | 2019-03-26 | 西北工业大学 | It is able to achieve the uplock reliability test of lock ring lateral position adjustment |
| CN107036745B (en) * | 2017-04-24 | 2019-05-17 | 西北工业大学 | Latch hook staring torque measuring device and method for uplock reliability test |
| CN107161356B (en) * | 2017-06-26 | 2023-11-03 | 中国人民解放军第五七二一工厂 | Aircraft cabin door lock technical parameter measuring device |
| CN108709708A (en) * | 2018-03-22 | 2018-10-26 | 天津航天瑞莱科技有限公司 | A kind of vibration experiment of aircraft aileron actuator |
| 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 |
| CN109682686B (en) * | 2019-01-31 | 2023-09-19 | 中国工程物理研究院机械制造工艺研究所 | Belleville spring tension and compression test device |
| CN109969428B (en) * | 2019-02-28 | 2024-03-29 | 西安生淼机电科技有限责任公司 | Test method of comprehensive test device for reliability and static strength/rigidity of upper lock of nose landing gear of airplane |
| CN113111437B (en) * | 2021-04-16 | 2023-07-21 | 中国航空综合技术研究所 | Data fusion type aircraft movement mechanism reliability assessment method |
| CN113418690B (en) * | 2021-07-13 | 2023-09-12 | 江苏省特种设备安全监督检验研究院 | Static simulation test system and test method for anti-falling device of lifting protection platform |
| CN114383934B (en) * | 2022-01-10 | 2023-11-21 | 中航飞机起落架有限责任公司 | Landing gear hook ring lock ring test loading device and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474599B1 (en) * | 2001-12-11 | 2002-11-05 | Gerald D. Stomski | Aircraft security system |
| CN201606331U (en) * | 2010-02-11 | 2010-10-13 | 哈尔滨飞机工业集团有限责任公司 | Landing gear uplock for airplanes |
| CN102530265B (en) * | 2012-02-15 | 2013-12-04 | 西北工业大学 | Device for testing reliability of cabin door lock for aircrafts |
| CN203499423U (en) * | 2013-08-13 | 2014-03-26 | 安徽工程大学 | Vehicle door opening and closing device for vehicle |
| CN203487894U (en) * | 2013-10-11 | 2014-03-19 | 中航飞机股份有限公司西安飞机分公司 | Opening and closing detection structure for airplane cabin door |
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