CN106976547A - A kind of built-in folding airstair of aircraft airborne - Google Patents
A kind of built-in folding airstair of aircraft airborne Download PDFInfo
- Publication number
- CN106976547A CN106976547A CN201710206694.8A CN201710206694A CN106976547A CN 106976547 A CN106976547 A CN 106976547A CN 201710206694 A CN201710206694 A CN 201710206694A CN 106976547 A CN106976547 A CN 106976547A
- Authority
- CN
- China
- Prior art keywords
- component
- horizontal segment
- terraced
- airstair
- slide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/24—Steps mounted on, and retractable within, fuselages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of built-in folding airstair of aircraft airborne, the built-in airstair that folds of the aircraft airborne includes carriage assembly, horizontal segment component, upper terraced component, descending stair component and actuated lever assemblies.The carriage assembly is fixedly connected in fuselage compartment, the horizontal segment component is placed on carriage assembly horizontal segment slide rail, the upper terraced component and horizontal segment member hinges, the descending stair component and upper terraced member hinges, the actuated lever assemblies respectively with horizontal segment component, upper terraced component and descending stair member hinges.The beneficial effects of the invention are as follows：The built-in airstair that folds of the aircraft airborne may be mounted under airplane floor, realize that airstair linkage is stretched out expansion and folded to withdraw, it is used for occupant and crew up and down as airstair under deployed condition, fold and be hidden under retracted state in cabin below floor, automaticity is high, and transmission is accurate, simple operation, structural-load-carrying capacity is strong, is not take up personnel compartment space.
Description
Technical field
The invention belongs to Airstairs of airplane field of structural design, and in particular to a kind of built-in folding boarding of aircraft airborne
Ladder.
Background technology
The airstair of aircraft is gone on or off the plane used equipment for occupant and crew, it is desirable to airstair Stability Analysis of Structures
Reliably, it is ensured that the safety of occupant and unit, also require that space-consuming is few when packing up, deploy and to pack up operation smooth.It should stop
Ensure the safety that personnel go on or off the plane during machine, do not influence the normal flight of aircraft in flight again.
Existing Airstairs of airplane one kind is ground airstair, it is impossible to random to carry, and increase aircraft is to the supporting boarding in airport
The demand of ladder, increases the dependence to airport boarding facility, reduces the adaptability of aircraft；Although another airstair can be with
It is random to carry, but can not fold, space in cabin is taken after packing up, space utilization rate in cabin is reduced, and easily cause danger.Therefore
A kind of airborne built-in folding airstair of complete, reliable, convenient operation of design is necessary.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of built-in folding airstair of aircraft airborne, can basis
Need to complete the stretching expansion of airstair and fold to withdraw, transmission is accurate, simple operation, and Stability Analysis of Structures is reliable during expansion, it is ensured that
The safety of machine and lower machine on occupant and unit；Compact conformation when folding is packed up, can be hidden in cabin below floor, save empty in cabin
Between.
Solve the built-in folding airstair of a kind of aircraft airborne in the present invention of above technical problem, it is characterised in that：
Including carriage assembly, horizontal segment component and airstair component, airstair component is provided with upper terraced component, descending stair component and group of drive rods
Part；
The carriage assembly is fixedly connected with fuselage, and horizontal segment component is connected with carriage assembly, airstair component and water
Flat section component is connected；Horizontal segment component forms one to slip in or beyond carriage assembly, airstair component with horizontal segment component
Integrally to slip in or beyond carriage assembly；
The upper terraced member hinges are on horizontal segment component, and descending stair member hinges are on upper terraced component, actuated lever assemblies point
Horizontal segment component is not hinged on, on upper terraced component and descending stair component, upper terraced component passes through actuated lever assemblies and drives descending stair component exhibition
Open or fold, realize the stretching expansion for folding airstair component or fold and withdraw.
In the present invention, the carriage assembly include bracket left frame, the right frame of bracket, bracket front frame, device carrier, driver,
Clutch, ball-screw and slide rail；
The driver and clutch are located on device carrier, and ball-screw is fixed on device carrier and bracket front frame,
Driver is connected with ball-screw by clutch；Slide rail is two, is respectively provided in bracket left frame and the right frame of bracket；Clutch
Device can connect or disconnect motor and ball-screw.
The horizontal segment component is connected with carriage assembly, and horizontal segment component is placed on the slide rail of carriage assembly, is passed through
Ball-screw is connected with carriage assembly.
In prioritization scheme, the slide rail is provided with horizontal segment slide rail and upper terraced slide rail, and horizontal segment slide rail is horizontally set on bracket
On a left frame bracket left side, the right frame of bracket, upper terraced slide rail is located above horizontal segment slide rail, and upper terraced slide rail front end is in bracket left frame, bracket
At right frame front end obliquely, rear end is parallel with horizontal segment slide rail；
The horizontal segment component is slided on the horizontal segment slide rail of carriage assembly, upper ladder of the upper terraced component along carriage assembly
Slide rail is slided.Horizontal segment slide rail also acts as the effect of support level section component simultaneously.
In further prioritization scheme, the carriage assembly is provided with driver rack, leading screw after-poppet and leading screw fore-stock, silk
Thick stick after-poppet and driving arm are located on device carrier, and leading screw fore-stock is located in bracket front frame, after ball-screw is by leading screw
Support and leading screw fore-stock are fixed on device carrier and bracket front frame, and driver is fixed on device carrier by driving arm
On.
The horizontal segment component includes horizontal segment left frame, horizontal segment pedal, the right frame of horizontal segment, feed screw nut support and leading screw
Nut, horizontal segment left frame and the right frame of horizontal segment are separately fixed at horizontal segment pedal both sides, and feed screw nut is fixed on feed screw nut branch
On frame, feed screw nut support is connected on horizontal segment pedal；Horizontal segment left frame side and horizontal segment right frame side face are additionally provided with arc
Groove, horizontal segment left frame bottom and the right frame bottom of horizontal segment are provided with horizontal segment pulley, reduce horizontal segment component in the left and right frame water of bracket
The frictional force slided on flat section slide rail.
The horizontal segment component is connected with carriage assembly, is connected by feed screw nut with the ball-screw of carriage assembly
Connect；Ball-screw on carriage assembly promotes feed screw nut, so as to promote horizontal segment along ballscrew shaft to back and forth movement.
The horizontal segment component is slided on the horizontal segment slide rail of carriage assembly, arc of the upper terraced component along horizontal segment component
Shape groove is slided, while being slided along the upper terraced slide rail of carriage assembly.
The upper terraced component includes upper terraced left frame, upper terraced pulley, upper terraced right frame and pedal, and pedal is located at terraced left frame and upper
Between the right frame of ladder, upper terraced pulley is located at terraced left frame upper end and upper terraced right frame upper end, and upper terraced pulley passes through horizontal segment component
Deep-slotted chip breaker, is slided along deep-slotted chip breaker, at the same in the upper terraced slide rail of carriage assembly slide so that drive terraced component around with level
The pin joint of section component is rotated.
Upper terraced component is hinged with horizontal segment, and upper terraced component can rotate around pin joint.
The descending stair component includes descending stair left frame, the right frame of lower body and pedal, pedal be located at descending stair left frame and the right frame of descending stair it
Between, descending stair component is hinged as single piece with upper terraced component, and descending stair component is rotated around with the pin joint of upper terraced component.
Descending stair component upper end is hinged with upper terraced component lower end, and descending stair component can rotate around pin joint.
The actuated lever assemblies include drive rod I, drive rod II and drive rod III, the upper end of drive rod I and horizontal segment component
It is hinged in the middle of frame articulation, lower end and drive rod II；It is hinged in the middle of the upper end of drive rod II and upper terraced component framework, lower end and driving
The upper end of bar III is hinged；It is hinged in the middle of the lower end of drive rod III and descending stair component framework.Actuated lever assemblies driving folds airstair and realized
Stretch out expansion and fold and withdraw.
In the present invention, preferably, to avoid airstair from folding discontinuity, the actuated lever assemblies arrange two
Group, each one group of left and right, the left and right frame with upper and lower terraced component is hinged respectively.
In the present invention, plane residing for the actuated lever assemblies and upper terraced component, descending stair component staggers respectively, or group of drive rods
Drive rod I in part, drive rod II, plane residing for drive rod III and upper terraced component, descending stair component stagger respectively, it is to avoid produced during folding
The interference of raw structure.
The clutch is other clutches such as electromagnetic clutch, magnetic powder cluth, friction clutch and fluid clutch
Device.
The driver is motor, hydraulic motor or air pressure motor etc..
The beneficial effects of the invention are as follows：
The built-in airstair that folds of the aircraft airborne may be mounted under airplane floor, realize that the random of airstair is taken
Band, and then realize that expansion is stretched out in airstair linkage and folding is withdrawn, it is used for occupant and machine up and down as airstair under deployed condition
Group personnel, fold and are hidden under retracted state in cabin below floor, automaticity is high, transmission is accurate, simple operation, structural bearing
Ability is strong, is not take up personnel compartment space, improves the aesthetic property and security of indoor environment.
Present invention can apply on the airborne vehicles such as aircraft, can also be applied on vehicle.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of the embodiment of the present invention
Fig. 2 is the assembling schematic diagram of carriage assembly of the embodiment of the present invention
Fig. 3 is horizontal segment component, upper terraced component, descending stair component and the actuated lever assemblies schematic diagram of the embodiment of the present invention
Fig. 4 is the bracket left frame horizontal segment slide rail and upper terraced slide rail schematic diagram of the embodiment of the present invention
Expansion or folding process intermediateness schematic diagram of the Fig. 5 for the embodiment of the present invention
Fig. 6 is the view after the complete folding withdrawal of the embodiment of the present invention
Expansion or folding process intermediateness schematic diagram of the Fig. 7 for the embodiment of the present invention
Fig. 8 is the right mount structure schematic diagram of horizontal segment component of the embodiment of the present invention
Reference：
100-carriage assembly, 200-horizontal segment component, 300-go up terraced component, 400-descending stair component, 500-drive rod
Component, 101-bracket left frame, 102-device carrier, 103-driver, 104-driver rack, 105-clutch,
106-leading screw after-poppet, 107-ball-screw, the right frame of 108-bracket, 109-bracket front frame, 110-leading screw fore-stock,
201-horizontal segment left frame, 202-horizontal segment pedal, the right frame of 203-horizontal segment, 204-feed screw nut support, 205-leading screw spiral shell
Mother, 206- deep-slotted chip breakers, 207- horizontal segment pulleys, 301-upper terraced left frame, 302-upper terraced pulley, 303-upper terraced right frame, 304-
Pedal, 401-descending stair left frame, the right frame of 402-descending stair, 501-drive rod I, 502-drive rod II, 503-drive rod III,
600- airstair components, 700- slide rails, 701- horizontal segment slide rails, the upper terraced slide rails of 702-
Embodiment
With reference to the accompanying drawings and examples and operation principle, the present invention is described in detail：
Embodiment 1
As shown in figure 1, folding airstair includes carriage assembly 100, horizontal segment component 200, upper terraced component 300, descending stair group
Part 400 and actuated lever assemblies 500.The carriage assembly 100 is fixedly connected with fuselage, and the horizontal segment component 200 is placed on
, can be along the slide rail back and forth movement on carriage assembly 100 in carriage assembly 100, the upper terraced component 300 and horizontal segment component 200
Be hinged, the descending stair component 400 is hinged with upper terraced component 300, the actuated lever assemblies 500 respectively with horizontal segment component 200, on
Terraced component 300 and descending stair component 400 are hinged, and are realized the stretching expansion for folding airstair and are folded and withdraw.
As shown in Fig. 2 the carriage assembly 100 is by bracket left frame 101, motor 103, clutch 105, ball-screw
107th, the right frame 108 of bracket, bracket front frame 109 are constituted, the right frame 108 of bracket left frame 101, bracket and bracket front frame 109, device carrier
102 frameworks that form a whole are fixed on fuselage, and motor 103 is fixed on device carrier 102, and ball-screw 107 is consolidated
It is scheduled on device carrier 102 and bracket front frame 109, motor 103 is connected with ball-screw 107 by clutch 105, clutch
Device 105 can connect or disconnect motor 103 and ball-screw 107.As shown in figure 4, on the right frame 108 of bracket left frame 101, bracket
Horizontal segment slide rail 701 and upper terraced slide rail 702 are provided with, horizontal segment slide rail 701 also acts as the work of support level section component 200 simultaneously
With at bracket left frame 101, the front end of the right frame 108 of bracket obliquely, rear end and horizontal segment slide rail 701 are flat for upper terraced slide rail 702
OK.
As shown in figure 3, the horizontal segment component 200 is by horizontal segment left frame 201, horizontal segment pedal 202, the right frame of horizontal segment
203rd, feed screw nut support 204, feed screw nut 205 are constituted, horizontal segment left frame 201, horizontal segment pedal 202 and the right frame of horizontal segment
203 form a whole frame, are placed on the horizontal segment slide rail 701 on the right frame 108 of the bracket left frame 101 of carriage assembly 100, bracket
On, it can be slided along horizontal segment slide rail 701.Feed screw nut 205 is fixed on feed screw nut support 204, and feed screw nut support 204 is consolidated
Be scheduled on horizontal segment pedal 202, i.e., at the lower surface of horizontal segment pedal 202, the ball-screw on the carriage assembly 100
107 promote feed screw nut 205, so as to promote horizontal segment component 200 along the axial back and forth movement of ball-screw 107.The horizontal segment
The right frame 203 of left frame 201, horizontal segment has the deep-slotted chip breaker 206 passed through for upper terraced pulley 302, the horizontal segment left frame 201, horizontal segment
The right bottom of frame 203 is provided with horizontal segment pulley 207.
As shown in figure 3, the upper terraced component 300 is by upper terraced left frame 301, upper terraced right frame 303, upper terraced pulley 302 and steps on
Plate 304 is constituted, and upper terraced component 300 is hinged with horizontal segment component 200, and upper terraced component 300 can rotate around pin joint, upper terraced left frame
301st, the upper terraced right upper end of frame 303 is respectively provided with a upper terraced pulley 302, the upper ladder that upper terraced pulley 302 can be in carriage assembly 100
Slided in track 702.
As shown in figure 3, the descending stair component 400 is made up of descending stair left frame 401, the right frame 402 of descending stair and pedal 304, under
The terraced upper end of component 400 is hinged with the upper terraced lower end of component 300, and descending stair component 400 can rotate around pin joint.
As shown in figure 3, the actuated lever assemblies 500 are by III 503 groups of drive rod I 501, drive rod II 502 and drive rod
Into the upper end of drive rod I 501 is hinged with horizontal segment component 200, is hinged in the middle of lower end and drive rod II 502, on drive rod II 502
End is hinged with upper terraced component 300, and lower end is hinged with the upper end of drive rod III 503, and the lower end of drive rod III 503 is cut with scissors with descending stair component 400
Connect.Left and right respectively arranges one group, and the driving of actuated lever assemblies 500, which folds airstair and realizes to stretch out, to be deployed and fold to withdraw.
When airstair folds withdrawal：Motor 104 drives ball-screw 107 to rotate by clutch 105, so as to drive
Horizontal segment component 200 is along the axial inward movement of ball-screw 107, due to the upper terraced design feature of track 702, the upper terraced edge of pulley 302
When upper terraced track 702 is slided inside, the upper terraced vertical direction position of pulley 302 along the deep-slotted chip breaker on horizontal segment component 200 it is continuous under
Drop, forces terraced component 300 to be rotated counterclockwise along with the pin joint of horizontal segment component 200, and drive rod I 501 pulls driving II 502 to make
Drive rod II 502 drives III 503 to pull descending stair group around the pin joint rotate counterclockwise with upper terraced component 300, and then by pulling
Part 400 makes descending stair component 400 around the pin joint rotate counterclockwise with upper terraced component 300, so that the folding of descending stair component is realized,
As shown in Figure 5.When upper terraced pulley 302 enters upper terraced 702 horizontal segment of slide rail, upper terraced component 300 and descending stair component 400 are complete
Fold in place.The airstair component 600 folded continues to withdraw toward in cabin in the presence of motor 103, until receiving completely
Return, clutch 105 disconnects, motor stops, as shown in Figure 6.
Airstair stretches out expansion：Horizontal segment component 200 ball-screw 107 drive under along ball-screw 107 axially outward
Motion, Foldable airstair outward movment, when upper terraced pulley 302, which is moved to, to be moved obliquely behind the upper turning of terraced slide rail 702,
Upper terraced component 300 is rotated clockwise around the pin joint with horizontal segment component 200, and drive rod I 501 promotes drive rod II 502 around drive
Lever II 502 and the pin joint of upper terraced component 300 turn clockwise, by drive rod III 503 promote descending stair component 400 around with it is upper
The pin joint of terraced component 300 turns clockwise, so as to realize terraced component 300, the expansion of descending stair component 400.When upper terraced pulley
302 when moving on carriage assembly 100 terraced 702 top of slide rail, and upper descending stair is completely open to position, as shown in figure 1, clutch is disconnected
Open, motor 103 is stopped.
During electrical fault, clutch is not combined, and can be manually pulled out airstair until airstair is fully deployed in place or manually
Airstair is withdrawn until airstair is completely retracted into position, so as to realize manual expansion or the folder function of airstair.
Embodiment 2
As shown in figure 1, folding airstair includes carriage assembly 100, horizontal segment component 200, upper terraced component 300, descending stair group
Part 400 and actuated lever assemblies 500.The carriage assembly 100 is fixedly connected with fuselage, and the horizontal segment component 200 is placed on
, can be along the slide rail back and forth movement on carriage assembly 100 in carriage assembly 100, the upper terraced component 300 and horizontal segment component 200
Be hinged, the descending stair component 400 is hinged with upper terraced component 300, the actuated lever assemblies 500 respectively with horizontal segment component 200, on
Terraced component 300 and descending stair component 400 are hinged, and are realized the stretching expansion for folding airstair and are folded and withdraw.
As shown in Fig. 2 the carriage assembly 100 is by bracket left frame 101, device carrier 102, motor 103, driving branch
The right frame 108 of frame 104, clutch 105, leading screw after-poppet 106, ball-screw 107, bracket, bracket front frame 109, leading screw fore-stock
110 compositions, the right frame 108 of bracket left frame 101, bracket and bracket front frame 109, device carrier 102 framework that forms a whole is fixed
On fuselage, motor 103 is fixed on device carrier 102 by driving arm 104, after ball-screw 107 is by leading screw
Support 106, leading screw fore-stock 110 are fixed on device carrier 102 and bracket front frame 109, motor 103 and ball-screw
107 are connected by clutch 105, and clutch 105 can connect or disconnect motor 103 and ball-screw 107.As shown in figure 4,
Horizontal segment slide rail 701 and upper terraced slide rail 702 are provided with the right frame 108 of bracket left frame 101, bracket, horizontal segment slide rail 701 is gone back simultaneously
Play a part of support level section component 200, upper terraced slide rail 702 at the front end of the left and right frame of bracket obliquely, rear end and level
Section slide rail 701 is parallel.
As shown in figure 3, the horizontal segment component 200 is by horizontal segment left frame 201, horizontal segment pedal 202, the right frame of horizontal segment
203rd, feed screw nut support 204, feed screw nut 205 are constituted, horizontal segment left frame 201, horizontal segment pedal 202 and the right frame of horizontal segment
203 form a whole frame, are placed on the horizontal segment slide rail 701 on the right frame 108 of the bracket left frame 101 of carriage assembly 100, bracket
On, it can be slided along horizontal segment slide rail 701.Feed screw nut 205 is fixed on feed screw nut support 204, and feed screw nut support 204 is consolidated
It is scheduled under horizontal segment pedal 202, the ball-screw 107 on the carriage assembly 100 promotes feed screw nut 205, so as to promote water
Flat section component 200 is along the axial back and forth movement of ball-screw 107.The right frame 203 of the horizontal segment left frame 201, horizontal segment has for upper ladder
The deep-slotted chip breaker that pulley 302 is passed through, the right bottom of frame 203 of the horizontal segment left frame 201, horizontal segment is provided with pulley.
As shown in figure 3, the upper terraced component 300 is by upper terraced left frame 301, upper terraced right frame 303, upper terraced pulley 302 and steps on
Plate 304 is constituted, and upper terraced component 300 is hinged with horizontal segment component 200, and upper terraced component 300 can rotate around pin joint, upper terraced left frame
301st, the upper terraced right upper end of frame 303 is respectively provided with a upper terraced pulley 302, the upper ladder that upper terraced pulley 302 can be in carriage assembly 100
Slided in track 702.
As shown in figure 3, the descending stair component 400 is made up of descending stair left frame 401, the right frame 402 of descending stair and pedal 304, under
The terraced upper end bottom of component 400 and the upper terraced lower end lower hinge of component 300, descending stair component 400 can rotate around pin joint.
As shown in figure 3, the actuated lever assemblies 500 are by III 503 groups of drive rod I 501, drive rod II 502 and drive rod
Into the upper end of drive rod I 501 is hinged with horizontal segment component 200, is hinged in the middle of lower end and drive rod II 502, on drive rod II 502
End is hinged with upper terraced component 300, and lower end is hinged with the upper end of drive rod III 503, and the lower end of drive rod III 503 is cut with scissors with descending stair component 400
Connect.Left and right respectively arranges one group, and the driving of actuated lever assemblies 500, which folds airstair and realizes to stretch out, to be deployed and fold to withdraw.
Plane residing for actuated lever assemblies 500 and upper terraced component 300, descending stair component 400 staggers respectively, or actuated lever assemblies
Drive rod I 501 in 500, drive rod II 502, plane difference residing for drive rod III 503 and upper terraced component 300, descending stair component 400
Stagger, it is to avoid the interference of structure is produced during folding.
When airstair folds withdrawal：Motor 104 drives ball-screw 107 to rotate by clutch 105, so as to drive
Horizontal segment component 200 is along the axial inward movement of ball-screw 107, due to upper terraced track structure feature, and upper terraced pulley 302 is along upper ladder
When track is slided inside, the upper terraced vertical direction position of pulley 302 constantly declines along the chute on horizontal segment component 200, forces
Terraced component 300 is rotated counterclockwise along with the pin joint of horizontal segment component 200, and drive rod I 501 pulls driving II 502 to make drive rod II
502 turn clockwise around the pin joint with upper terraced component 300, and then by pulling driving III 503 to pull under descending stair components 400 make
Terraced component 400 turns clockwise around the pin joint with upper terraced component 300, so that the folding of descending stair component is realized, such as Fig. 5 institutes
Show.When upper terraced pulley 302 enters upper terraced 702 horizontal segment of slide rail, upper terraced component 300 is folded into completely with descending stair component 400
Position.The airstair component folded continues to withdraw toward in cabin in the presence of motor 103, until withdrawal, clutch completely
Disconnect, motor stops, as shown in Figure 6.
Airstair stretches out expansion：Horizontal segment component 200 ball-screw 107 drive under along ball-screw 107 axially outward
Motion, Foldable airstair outward movment, when upper terraced pulley 302, which is moved to, to be moved obliquely behind the upper turning of terraced slide rail 702,
Upper terraced component 300 is rotated clockwise around the pin joint with horizontal segment component 200, and drive rod I 501 promotes drive rod II 502 around drive
The pin joint rotate counterclockwise of lever II 502 and upper terraced component 300, by drive rod III 503 promote descending stair component 400 around with it is upper
The pin joint rotate counterclockwise of terraced component 300, so as to realize terraced component 300, the expansion of descending stair component 400.When upper terraced pulley
302 when moving on carriage assembly 100 terraced 702 top of slide rail, and upper descending stair is completely open to position, as shown in fig. 7, clutch is disconnected
Open, motor is stopped.
During electrical fault, clutch is not combined, and can be manually pulled out airstair until airstair is fully deployed in place or manually
Airstair is withdrawn until airstair is completely retracted into position, so as to realize manual expansion or the folder function of airstair.
The built-in operation principle for folding airstair of aircraft airborne in the present invention：
(1) after clutch is combined, driver drives ball screw turns by clutch；
(2) ball-screw promotes feed screw nut along ballscrew shaft to back and forth movement, and then drives horizontal segment component in support
Along ballscrew shaft to back and forth movement on horizontal segment slide rail on frame component；
(3) when airstair folds withdrawal：Horizontal segment component ball-screw drive under along ballscrew shaft to inward movement,
Due to the upper terraced track structure feature on carriage assembly, upper terraced pulley along upper terraced track toward cabin in when sliding, upper terraced pulley position
Constantly decline along the chute on horizontal segment component, force terraced component to be rotated up along the pin joint with horizontal segment component, drive
Bar I pulls driving II to make drive rod II around the pin joint rotate counterclockwise with upper terraced component, and then by pulling driving III to pull
Descending stair component makes descending stair component around the pin joint rotate counterclockwise with upper terraced component, so as to realize the folding of descending stair component.When
When upper terraced pulley enters terraced slide rail horizontal segment, upper descending stair component is folded in place completely.The airstair component folded is driving
Continue to withdraw toward in cabin in the presence of dynamic motor, until withdrawal completely, clutch disconnects, and motor stops.
(4) airstair stretches out expansion：Horizontal segment component is axially moved out under ball-screw drive along ball-screw, band
It is dynamic to fold airstair outward movment, when upper terraced pulley motion is moved obliquely to Shang Ti slide rails corner, upper terraced component around with
The pin joint of horizontal segment component is rotated down, and drive rod I promotes drive rod II suitable around the pin joint of drive rod II and upper terraced component
Hour hands rotate, and promote descending stair component to be turned clockwise around the pin joint with upper terraced component by drive rod III, so that above and below realizing
The expansion of terraced component.When terraced rail tips in upper terraced pulley motion to carriage assembly, upper descending stair is completely open to position, clutch
Disconnect, motor is stopped.
(5) during electrical fault, clutch is not combined, and can be manually pulled out airstair until airstair is fully deployed in place or hand
The dynamic airstair that withdraws is until airstair is completely retracted into position, so as to realize manual expansion or the folder function of airstair.
Clutch in above example can be electromagnetic clutch, magnetic powder cluth, friction clutch and fluid power clutch
Other clutches such as device, driver can be motor, hydraulic motor or air pressure motor etc..
The present invention is not limited to above-mentioned embodiment for those skilled in the art, in the category that the present invention is provided,
The addition and replacement of technical characteristic are carried out, protection scope of the present invention is belonged to.
Claims (10)
1. a kind of built-in folding airstair of aircraft airborne, it is characterised in that：Including carriage assembly (100), horizontal segment component
(200) and airstair component (600), airstair component (600) is provided with upper terraced component (300), descending stair component (400) and drive rod
Component (500)；
The carriage assembly (100) is fixedly connected with fuselage, and horizontal segment component (200) is connected with carriage assembly (100), boarding
Terraced component (600) is connected with horizontal segment component (200)；Horizontal segment component (200) is slided to carriage assembly (100) is inner or outer,
Airstair component (600) is slided with horizontal segment component (200) one entirety of formation to carriage assembly (100) is inner or outer；
The upper terraced component (300) is hinged on horizontal segment component (200), and descending stair component (400) is hinged on terraced component (300)
On, actuated lever assemblies (500) are respectively hinged on horizontal segment component (200), upper terraced component (300) and descending stair component (400), on
Terraced component (300) is rotated by actuated lever assemblies (500) and folds or deploy with descending stair component (400).
2. the built-in folding airstair of a kind of aircraft airborne according to claim 1, it is characterised in that：The carriage assembly
(100) include bracket left frame (101), the right frame of bracket (108), bracket front frame (109), device carrier (102), driver (103),
Clutch (105), ball-screw (107) and slide rail (700)；
The driver (103) and clutch (105) are located on device carrier (102), and ball-screw (107) is fixed on equipment support
On frame (102) and bracket front frame (109), driver (103) is connected with ball-screw (107) by clutch (105)；Slide rail
(700) it is two, is respectively provided in bracket left frame (101) and the right frame of bracket (108)；
The horizontal segment component (200) is connected with carriage assembly (100), and horizontal segment component (200) is placed on carriage assembly
(100) on slide rail, it is connected by ball-screw (107) with carriage assembly (100).
3. the built-in folding airstair of a kind of aircraft airborne according to claim 2, it is characterised in that：The slide rail
(700) horizontal segment slide rail (701) and upper terraced slide rail (702) are provided with, horizontal segment slide rail (701) is horizontally set on bracket left frame
(101), on the right frame of bracket (108), upper terraced slide rail (702) is located above horizontal segment slide rail (701), upper terraced slide rail (702) front end
At bracket left frame (101), the right frame of bracket (108) front end obliquely, rear end is parallel with horizontal segment slide rail (701)；
The horizontal segment component (200) is slided on horizontal segment slide rail (701), and upper terraced component (300) is along upper terraced slide rail (702)
Slide.
4. the built-in folding airstair of a kind of aircraft airborne according to Claims 2 or 3, it is characterised in that：The bracket
Component (100) is provided with driver rack (104), leading screw after-poppet (106) and leading screw fore-stock (110), leading screw after-poppet (106)
It is located at driving arm (104) on device carrier (102), leading screw fore-stock (110) is located in bracket front frame (109), ball wire
Thick stick (107) is fixed on device carrier (102) and bracket front frame (109) by leading screw after-poppet (106) and leading screw fore-stock (110)
On, driver (103) is fixed on device carrier (102) by driving arm (104).
5. the built-in folding airstair of a kind of aircraft airborne according to any one of claim 1-4, it is characterised in that：Institute
Stating horizontal segment component (200) includes horizontal segment left frame (201), horizontal segment pedal (202), the right frame of horizontal segment (203), feed screw nut
Support (204) and feed screw nut (205), horizontal segment left frame (201) and the right frame of horizontal segment (203) are separately fixed at horizontal segment pedal
(202) both sides, feed screw nut (205) is fixed on feed screw nut support (204), and feed screw nut support (204) is connected in level
On section pedal (202)；Horizontal segment left frame (201) is additionally provided with deep-slotted chip breaker (206), level sideways with the right frame of horizontal segment (203) sideways
Section left frame (201) bottom and the right frame of horizontal segment (203) bottom are provided with horizontal segment pulley (207)；
The horizontal segment component (200) is connected with carriage assembly (100), passes through feed screw nut (205) and carriage assembly (100)
Ball-screw (107) be connected；
The horizontal segment component (200) is slided on the horizontal segment slide rail of carriage assembly (100), and upper terraced component (300) is along arc
Shape groove (206) is slided, while being slided along the upper terraced slide rail (702) of carriage assembly (100).
6. the built-in folding airstair of a kind of aircraft airborne according to claim 1 or 5, it is characterised in that：The upper ladder
Component (300) includes upper terraced left frame (301), upper terraced pulley (302), upper terraced right frame (303) and pedal (304), and pedal (304) is set
Between upper terraced left frame (301) and upper terraced right frame (303), upper terraced pulley (302) is located at terraced left frame (301) upper end and upper ladder is right
Frame (303) upper end, deep-slotted chip breaker (206) of the upper terraced pulley (302) along horizontal segment component (300) is slided, while in carriage assembly
(100) slided in, so as to drive terraced component (300) to be rotated around with the pin joint of horizontal segment component (200).
7. the built-in folding airstair of a kind of aircraft airborne according to claim 1 or 6, it is characterised in that：The descending stair
Component (400) includes descending stair left frame (401), the right frame of lower body (402) and pedal (304), and pedal (304) is located at descending stair left frame
(301) between the right frame of descending stair (303), descending stair component (400) is hinged as single piece with upper terraced component (300), descending stair group
Part (400) is rotated around with the pin joint of upper terraced component (300).
8. the built-in folding airstair of a kind of aircraft airborne according to claim 1, it is characterised in that：The group of drive rods
Part (500) includes drive rod I (501), drive rod II (502) and drive rod III (503), drive rod I (501) upper end and horizontal segment
It is hinged in the middle of component (200) frame articulation, lower end and drive rod II (502)；Drive rod II (502) upper end and upper terraced component
(300) it is hinged in the middle of framework, lower end and drive rod III (503) upper end are hinged；Drive rod III (503) lower end and descending stair component
(400) it is hinged in the middle of framework；
Preferably, the actuated lever assemblies are two groups.
9. the built-in folding airstair of a kind of aircraft airborne according to claim 2, it is characterised in that：The clutch
(105) it is electromagnetic clutch, magnetic powder cluth, friction clutch or fluid clutch.
10. the built-in folding airstair of a kind of aircraft airborne according to claim 2, it is characterised in that：The driver
(103) it is motor, hydraulic motor or air pressure motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206694.8A CN106976547A (en) | 2017-03-31 | 2017-03-31 | A kind of built-in folding airstair of aircraft airborne |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206694.8A CN106976547A (en) | 2017-03-31 | 2017-03-31 | A kind of built-in folding airstair of aircraft airborne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106976547A true CN106976547A (en) | 2017-07-25 |
Family
ID=59338412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710206694.8A Pending CN106976547A (en) | 2017-03-31 | 2017-03-31 | A kind of built-in folding airstair of aircraft airborne |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106976547A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108190002A (en) * | 2018-02-11 | 2018-06-22 | 江苏恒铭达航空设备有限公司 | Foldable automatic airstair |
| CN108248816A (en) * | 2018-02-11 | 2018-07-06 | 江苏恒铭达航空设备有限公司 | Airstair with gear fitted economic unlocking structure |
| CN108945390A (en) * | 2018-08-30 | 2018-12-07 | 玉环天润航空机械制造有限公司 | A kind of stepless folding and unfolding step and stepless folding and unfolding boarding system |
| CN112498245A (en) * | 2020-12-04 | 2021-03-16 | 徐州海伦哲特种车辆有限公司 | High-altitude operation device for automatically placing and retracting boarding ladder and operation method |
-
2017
- 2017-03-31 CN CN201710206694.8A patent/CN106976547A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108190002A (en) * | 2018-02-11 | 2018-06-22 | 江苏恒铭达航空设备有限公司 | Foldable automatic airstair |
| CN108248816A (en) * | 2018-02-11 | 2018-07-06 | 江苏恒铭达航空设备有限公司 | Airstair with gear fitted economic unlocking structure |
| CN108190002B (en) * | 2018-02-11 | 2024-01-23 | 江苏恒铭达航空设备有限公司 | Foldable automatic boarding ladder |
| CN108945390A (en) * | 2018-08-30 | 2018-12-07 | 玉环天润航空机械制造有限公司 | A kind of stepless folding and unfolding step and stepless folding and unfolding boarding system |
| CN112498245A (en) * | 2020-12-04 | 2021-03-16 | 徐州海伦哲特种车辆有限公司 | High-altitude operation device for automatically placing and retracting boarding ladder and operation method |
| CN112498245B (en) * | 2020-12-04 | 2023-09-26 | 徐州海伦哲特种车辆有限公司 | High-altitude operation device capable of automatically placing and withdrawing boarding ladder and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106976547A (en) | A kind of built-in folding airstair of aircraft airborne | |
| CN206797772U (en) | A kind of built-in folding airstair of aircraft airborne | |
| US9889920B2 (en) | Actuation assembly for moving a wing tip device on an aircraft wing | |
| TWI785066B (en) | Aircraft seat and support member used therefor | |
| US10464658B2 (en) | Actuation assembly with a track and follower for use in moving a wing tip device on an aircraft wing | |
| US8931834B2 (en) | Armrest assembly with deployable bed extension | |
| US20170137110A1 (en) | Articulation mechanism for forming a lock to hold a wing tip device in a ground configuration | |
| US20130299633A1 (en) | Landing gear for an aircraft | |
| US8302906B2 (en) | Aircraft noise reduction apparatus | |
| EP3647187B1 (en) | Landing gear | |
| CN105292446A (en) | Damping undercarriage of quadrotor | |
| EP1129938A1 (en) | Linked multi-segment landing gear door for aircraft | |
| CN110155362A (en) | The hoistable platform of aircraft vertical fin maintenance | |
| WO2015134182A1 (en) | Nose landing gear arrangements including a flexible sheet and methods for making the same | |
| CN114275144B (en) | Mechanical linkage device for wing unfolding time sequence control | |
| CN203845023U (en) | Integrated unmanned plane catapulting device | |
| US20180170527A1 (en) | Aircraft landing gear | |
| CN107554398A (en) | Vehicle extending space elevating mechanism | |
| CN210555556U (en) | Random folding boarding ladder retracting device for transport airplane | |
| CN104968487B (en) | Garbage compressor | |
| CN110279245A (en) | A kind of folding bed | |
| CN110562434B (en) | Automatic folding wing unmanned aerial vehicle | |
| CN109131846B (en) | Manual steering device of undercarriage | |
| CN210364359U (en) | Aircraft with undercarriage | |
| CN204279956U (en) | A kind of suspension telltale extension and retraction system be arranged on above aircraft passenger compartment seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |