CN106882358A - A kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door - Google Patents

A kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door Download PDF

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Publication number
CN106882358A
CN106882358A CN201710236479.2A CN201710236479A CN106882358A CN 106882358 A CN106882358 A CN 106882358A CN 201710236479 A CN201710236479 A CN 201710236479A CN 106882358 A CN106882358 A CN 106882358A
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CN
China
Prior art keywords
directive wheel
hatch door
door
gathering sill
type groove
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Application number
CN201710236479.2A
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Chinese (zh)
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CN106882358B (en
Inventor
柳毅
由振华
朱辉
罗晓剑
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JIANGSU MEILONG AVIATION COMPONENTS CO Ltd
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JIANGSU MEILONG AVIATION COMPONENTS CO Ltd
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Priority to CN201710236479.2A priority Critical patent/CN106882358B/en
Publication of CN106882358A publication Critical patent/CN106882358A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/14Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
    • B64C1/1407Doors; surrounding frames
    • B64C1/1415Cargo doors, e.g. incorporating ramps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/40Weight reduction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

It is that block is set on gathering sill top on fuselage mouthful frame the present invention relates to a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door, including guide groove structure, correspondence gathering sill side sets closing spigot surface and constitutes on block;Bearing is arranged on hatch door mouthful frame, and bearing side is connected with lifting directive wheel, and the axis perpendicular of closing directive wheel, the closing directive wheel and lifting directive wheel is provided between bearing and lifting directive wheel;Bearing opposite side connects hatch door hoisting mechanism;The lifting directive wheel is placed in gathering sill, is moved along gathering sill, and in hatch door lifter motion, the lifting directive wheel on bearing is moved along gathering sill, is closed directive wheel and is closed guide face contacts, is moved along spigot surface is closed, and realizes guide-localization.The present invention enables hatch door to realize that hatch door is accurately positioned automatically by self gravitation in closing process, while the indispensable various functions of subsidiary civil aircraft hatch door.

Description

A kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door
Technical field
The invention belongs to civil aircraft manufacturing technology field, it is related to that a kind of large-scale civil aircraft cargo door is multi-functional to be automatically positioned machine Structure, is applied on civil aircraft in widely used half blocking supercharging hatch door.
Prior art
Because civil aircraft big opening half is blocked, supercharging cargo door size is larger, and in door closing procedure, hatch door has closing wrong The risk of position, or even there is certain probability to cause hatch door, mouth frame damaged.If individually setting up automatic positioning mechanism, can not only increase Hatch door weight, and take larger space, is that the layout of other mechanisms and structure brings difficulty.
Therefore, R & D design is a occupies little space, compact conformation, and lightweight automatic positioning mechanism is just provided with act foot The meaning of weight.This mechanism should be able to guide hatch door in closing process in addition to the common function of hatch door is met, also, automatically and machine Body mouthful frame matching positioning, reduces closing difficulty of closing the door, and mistake of being closed the door caused by reduction human factor reduces aircraft and dangerous thing occurs Therefore probability.
The content of the invention
It is multi-functional automatic it is an object of the invention to provide a kind of large-scale civil aircraft cargo door for above-mentioned technical problem Detent mechanism.The present invention it is extra increase weight and space on the basis of provide it is a kind of efficiently, be accurately automatically positioned machine Structure, enables hatch door to realize that hatch door is accurately positioned automatically by self gravitation in closing process, while subsidiary civil aircraft hatch door indispensability Various functions.
The technical solution adopted by the present invention is:
A kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door of the present invention, including:
Guide groove structure, is to set block on gathering sill top on fuselage mouthful frame, correspondence gathering sill side on block Set and close spigot surface composition;
Bearing, on hatch door mouthful frame, bearing side is connected with lifting directive wheel, is installed between bearing and lifting directive wheel There is the axis perpendicular of closing directive wheel, the closing directive wheel and lifting directive wheel;Bearing opposite side connects hatch door elevator Structure;
In door closing procedure, when hatch door enters fuselage mouthful frame, the closing directive wheel is closed and led with guide face contacts, edge is closed Moved to face, realize guide-localization;Meanwhile, lifting directive wheel is placed in gathering sill, and constraint hatch door is closed along fixation locus;
In door opening process, the lifting directive wheel is moved along gathering sill, avoids fuselage mouthful frame obstacle completely to hatch door.
Further, described gathering sill concrete structure:It is U-type groove, the U-type groove side I is with extension side, the extension While closing spigot surface bottom is extended to, and extension side is connected with the arc-shaped transition of U-type groove side I, another side II carries level Bending edges, form the track that lifting directive wheel skids off U-type groove.
Further, the extension side of the U-type groove is prolonged with closing guide face contacts end near the horizontal bending edges of U-type groove Angle [alpha] is 135 ° -180 ° between side long and U-type groove side I.
Further, the U-type groove is obliquely installed, and is 45 ° -90 ° with the angle beta between horizontal bending edges thereon.
Further, the U-type groove bottom arc transition position is respectively arranged with gusset.
A kind of large-scale civil aircraft cargo door, with 2 pairs of multi-functional automatic positioning mechanisms of the present invention, each pair symmetrically sets Put, two pairs are respectively arranged at hatch door near upper and lower two side position.
Beneficial effects of the present invention:
1. the present invention can guide hatch door smoothly to lift opening., it is necessary to complete to carry during half blocking type hatch door is fully opened Rise and open two actions., to hide hatch door block, after hatch door avoids doorframe block completely, ability is smoothly for hatch door lifting process Open.The present invention designs hatch door lifting curve according to the position of hatch door block, so as to design lifting guiding mechanism, makes hatch door edge Lifting curve is moved, and smoothly avoids fuselage block.
2. the present invention can guide auxiliary hatch door smoothly to reach and make a reservation for close latched position.Half blocks supercharging cargo door is closing During, due to the influence such as environment, human factor, its own has certain probability to be interfered with doorframe its Surrounding Parts, clamping stagnation, Cause functional disorder.Closing directive wheel in the present invention can guide hatch door in closing process, reached along ideal trajectory and closed Latched position is closed, is positioned with fuselage mouthful frame accurately mate automatically in auxiliary big opening supercharging hatch door closing process, auxiliary hatch door is suitable Profit closes locking.
3. the present invention can undertake the prominent wind negative pressure and ditching negative pressure that hatch door runs into.When aircraft door runs into prominent wind When negative pressure or ditching negative pressure, guiding groove sidewall of the invention prevents hatch door from being moved to fuselage interior as main loading end, Bear hatch door major part negative pressure load during aircraft ditching.
4. the present invention can significantly reduce the mechanism that play before and after hatch door causes and damage.
After hatch door is completely closed, its play before and after mouth inframe, between the mechanism of door periphery and door covering and fuselage Different degrees of shock is formd between covering, post-failure behaviors integrality when serious.Closing spigot surface in the present invention is specific Pressure-bearing surface, effectively prevents the front and rear play of hatch door, significantly reduces because the mechanism that play is caused is damaged.
5. the anti-stop block broken invalid of present invention energy, causes aircraft accident.If there is broken invalid in hatch door block, in fuselage Portion's supercharging load will force hatch door to be moved to external fuselage, cause security incident.Detent mechanism of the invention can keep off in hatch door During block broken invalid, substitute hatch door block and undertake fuselage interior supercharging load.
Brief description of the drawings
Fig. 1 is hatch door closed mode structural representation of the present invention.
Fig. 2 is that hatch door of the present invention lifts status architecture schematic diagram.
Fig. 3 is type leading wheel framework schematic diagram of the present invention.
Fig. 4 is guide-localization slot structure schematic diagram of the present invention.
Fig. 5 is the different angle schematic diagrames of Fig. 4.
Fig. 6 is schematic view of the mounting position of the present invention.
Fig. 7 is the close-up schematic view of Fig. 6.
In figure:1. guide groove structure, 2. closes directive wheel, 3. bearing, 4. lifts directive wheel, 5. closes spigot surface, 6. leads To groove negative pressure stress surface, 7. gathering sill, 8. hatch door, 9. automatic positioning mechanism, 10. fuselage mouthful frame, 11. hatch doors mouthful frame.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Embodiment:As shown in figure 1, a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door of the present invention, including:
Guide groove structure 1, is to set block on the top of gathering sill 7 on fuselage mouthful frame 10, and correspondence is oriented on block The side of groove 7 sets closing spigot surface 5 and constitutes;
Bearing 3, on hatch door mouthful frame 11, the side of bearing 3 is connected with lifting directive wheel 4, bearing 3 and lifting directive wheel Closing directive wheel 2, the axis perpendicular for closing directive wheel 2 and lifting directive wheel 4 are installed between 4;Bearing opposite side is connected On doorframe, hatch door lift mechanism lifts hatch door lifts directive wheel 4 and controls hatch door to move under the constraint of gathering sill 7 on hatch door Track;The hatch door hoisting mechanism carries existing structure for hatch door.
In door closing procedure, when hatch door 8 enters fuselage mouthful frame 10, the closing directive wheel 2 is contacted with spigot surface 5 is closed, edge Close spigot surface 5 to move, realize guide-localization;Meanwhile, lifting directive wheel 4 is placed in gathering sill 7, and constraint hatch door is along fixation locus Close.
In door opening process, the lifting directive wheel 4 is moved along gathering sill 7, the fuselage mouthful obstacle of frame 10 of hiding completely to hatch door.
The described concrete structure of gathering sill 7:It is U-type groove, the U-type groove side I 71 is with extension side 72, the extension side 72 Closing spigot surface 5 bottom is extended to, and extension side 72 is connected with the arc-shaped transition of U-type groove side I 71, another side II 73 carries Horizontal bending edges 74, form the track that lifting directive wheel 4 skids off U-type groove.
The extension side 72 of the U-type groove, near the bending edges 74 of U-type groove, extends side 72 and U with the closing contact jaw of spigot surface 5 The angle [alpha] of type groove side I 71 is 135 ° -180 °, and this example α selects 135 °.
The U-type groove is obliquely installed, and is 45 ° -90 ° with the angle beta between horizontal bending edges 74 thereon, and this example β selects 45 °.
The U-type groove bottom arc transition position is respectively arranged with gusset 75, and intensity is increased for supporting.
As shown in fig. 6, the present invention is used for a kind of large-scale civil aircraft cargo door, this example hatch door is of the present invention more with 2 pairs Function automatic positioning mechanism, each pair is symmetrical arranged, and two pairs are respectively arranged at hatch door near upper and lower two side position.
Present invention lifting directive wheel opens the movement locus of lifting according to hatch door, is moved in gathering sill, with carrying for hatch door Rise mechanism together, attitude and position of the precise control hatch door on vertical vector;Close directive wheel and play open and close according to hatch door The movement locus for closing, moves along predetermined closing spigot surface, is both designed as the fail safety of lifting directive wheel, while two groups of guiding The fail safety taken turns collectively as hatch door and fuselage block is backed up, it is possible to bear ditching and the influence of negative pressure load. Two directive wheels are used to position hatch door in the position of vector, and guiding hatch door is exactly into fuselage mouthful frame scope, supports when closing The influence of resistance to deformation, accident loads and prominent wind load, makes above-mentioned two groups of directive wheels accurately enter into gathering sill.
Embodiment 2:This example is as different from Example 1:Designed according to different hatch door lifting curves, it is U-shaped described in this example Angle [alpha] is 150 ° between the extension side 72 and U-type groove side I 71 of groove.The angle beta between horizontal bending edges 74 in the U-type groove is 60°。
Embodiment 3:This example is as different from Example 1:Designed according to different hatch door lifting curves, it is U-shaped described in this example Angle [alpha] is 180 ° between the extension side 72 and U-type groove side I 71 of groove.The angle beta between horizontal bending edges 74 in the U-type groove is 90°。
The course of work of the invention:
1. hatch door lifting:
When operating personnel move handle opens hatch door, open driving force and lifted hatch door by hoisting mechanism, due to carrying Rise directive wheel 4 to be arranged on hatch door, gathering sill 7 forces lifting directive wheel 4 in groove to be moved along lifting curve, so as to complete hatch door hide Keep away the lifter motion of fuselage block.
2. closing assisted:
In hatch door closing process, if hatch door overall deformation, could not be moved along ideal trajectory, the side closure directive wheel of hatch door two 2 contact with corresponding closing spigot surface 5, and guiding hatch door smoothly reaches preferable closed position
3. negative pressure is undertaken:
When aircraft runs into prominent wind negative pressure or ditching negative pressure, lifting directive wheel 4 connects with the negative pressure stress surface 6 of gathering sill Touch, negative pressure suffered by hatch door is acted on gathering sill negative pressure stress surface 6, so as to prevent hatch door to machine completely by lifting directive wheel 4 Body internal motion.
4. hatch door play is prevented:
When hatch door causes front and rear play due to prominent wind load or unpredictable load, close directive wheel 2 and closed with gathering sill Close spigot surface 5 to contact, effectively prevent play before and after hatch door, or even destruction hatch door inside and periphery mechanism.

Claims (6)

1. a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door, it is characterised in that:Including:
Guide groove structure, is to set block on gathering sill top on fuselage mouthful frame, and correspondence gathering sill side is set on block Spigot surface is closed to constitute;
Bearing, on hatch door mouthful frame, bearing side is connected with lifting directive wheel, installs relevant between bearing and lifting directive wheel Close the axis perpendicular of directive wheel, the closing directive wheel and lifting directive wheel;Bearing opposite side connects hatch door hoisting mechanism;
In door closing procedure, when hatch door enters fuselage mouthful frame, the closing directive wheel closes spigot surface with guide face contacts, edge is closed Motion, realizes guide-localization;Meanwhile, lifting directive wheel is placed in gathering sill, and constraint hatch door is closed along fixation locus;
In door opening process, the lifting directive wheel is moved along gathering sill, avoids fuselage mouthful frame obstacle completely to hatch door.
2. a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door as claimed in claim 1, it is characterised in that:Described Gathering sill concrete structure:It is U-type groove, with extension side, the extension side extends to closing spigot surface bottom for the U-type groove side I, And extension side is connected with the arc-shaped transition of U-type groove side I, another side II carries horizontal bending edges, forms lifting and is oriented to skidding Go out the track of U-type groove.
3. a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door as claimed in claim 2, it is characterised in that:The U The extension side of type groove is close to the horizontal bending edges of U-type groove, angle [alpha] between extension side and U-type groove side I with guide face contacts end is closed It is 135 ° -180 °.
4. a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door as claimed in claim 2, it is characterised in that:The U Type groove is obliquely installed, and is 45 ° -90 ° with the angle beta between horizontal bending edges thereon.
5. a kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door as claimed in claim 2, it is characterised in that:The U Type groove bottom arc transition position is respectively arranged with gusset.
6. a kind of large-scale civil aircraft cargo door, with 2 pairs of multi-functional automatic positioning mechanisms as described in claim 1-5, each pair pair Claim to set, two pairs are respectively arranged at hatch door near upper and lower two side position.
CN201710236479.2A 2017-04-12 2017-04-12 Multifunctional automatic positioning mechanism for cargo compartment door of large civil aircraft Active CN106882358B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710236479.2A CN106882358B (en) 2017-04-12 2017-04-12 Multifunctional automatic positioning mechanism for cargo compartment door of large civil aircraft

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Application Number Priority Date Filing Date Title
CN201710236479.2A CN106882358B (en) 2017-04-12 2017-04-12 Multifunctional automatic positioning mechanism for cargo compartment door of large civil aircraft

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CN106882358B CN106882358B (en) 2023-07-28

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB675778A (en) * 1949-10-12 1952-07-16 Saunders Roe Ltd A new or improved lock for the door of an aircraft pressure cabin
US4473201A (en) * 1982-10-29 1984-09-25 The Boeing Company Canopy-type aircraft cargo door and actuating mechanisms
US6457675B1 (en) * 2001-06-25 2002-10-01 The Boeing Company Hydraulic actuation system for cargo doors with cam-type latches
US20100059628A1 (en) * 2008-08-01 2010-03-11 Honda Motor Co., Ltd. Slide door device for aircraft
CN201933973U (en) * 2011-02-17 2011-08-17 中国航空工业集团公司西安飞机设计研究所 Composite material back cargo hold door
CN204998746U (en) * 2015-07-30 2016-01-27 中航沈飞民用飞机有限责任公司 Civil aircraft partly blocks up formula hatch door guide way
CN105667757A (en) * 2016-04-05 2016-06-15 中航沈飞民用飞机有限责任公司 Double-bent-section and semi-blocking type cargo space door of civil airplane
CN206664915U (en) * 2017-04-12 2017-11-24 江苏美龙航空部件有限公司 A kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB675778A (en) * 1949-10-12 1952-07-16 Saunders Roe Ltd A new or improved lock for the door of an aircraft pressure cabin
US4473201A (en) * 1982-10-29 1984-09-25 The Boeing Company Canopy-type aircraft cargo door and actuating mechanisms
US6457675B1 (en) * 2001-06-25 2002-10-01 The Boeing Company Hydraulic actuation system for cargo doors with cam-type latches
US20100059628A1 (en) * 2008-08-01 2010-03-11 Honda Motor Co., Ltd. Slide door device for aircraft
CN201933973U (en) * 2011-02-17 2011-08-17 中国航空工业集团公司西安飞机设计研究所 Composite material back cargo hold door
CN204998746U (en) * 2015-07-30 2016-01-27 中航沈飞民用飞机有限责任公司 Civil aircraft partly blocks up formula hatch door guide way
CN105667757A (en) * 2016-04-05 2016-06-15 中航沈飞民用飞机有限责任公司 Double-bent-section and semi-blocking type cargo space door of civil airplane
CN206664915U (en) * 2017-04-12 2017-11-24 江苏美龙航空部件有限公司 A kind of large-scale multi-functional automatic positioning mechanism of civil aircraft cargo door

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