CN107600394B - A kind of electronic upper locking device of undercarriage - Google Patents
A kind of electronic upper locking device of undercarriage Download PDFInfo
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- CN107600394B CN107600394B CN201710806251.2A CN201710806251A CN107600394B CN 107600394 B CN107600394 B CN 107600394B CN 201710806251 A CN201710806251 A CN 201710806251A CN 107600394 B CN107600394 B CN 107600394B
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- hammerlock
- latch hook
- lock housing
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Abstract
The invention discloses a kind of electronic upper locking devices of undercarriage comprising two first motor of cold standby and the second motors each other, and the first and second motor passes through the first and second ratchet mechanism respectively and connect with the gear being arranged on retarder；Ball-screw is fixedly mounted between the output shaft and lock housing of retarder, integrates be pivoted cam, and sheathed spring on the ball-screw between cam and lock housing on ball-screw；The cam is set to below hammerlock, can push hammerlock, so that hammerlock is discharged the first and second latch hook and is realized that unlocking or hammerlock reset under the effect of torsion spring, realizes the locking to the first and second latch hook.It this invention simplifies landing-gear system, eliminates conventional pressurized strut, the systems component such as hydraulic, air pressure, collection space is greatly saved, the reliability for alleviating weight, improving system, avoids maintenance cost caused by leakage failure.
Description
Technical field
The present invention relates to undercarriage extension and retraction system, especially a kind of electronic upper locking device of undercarriage.
Background technique
Can landing gear uplock, which reliably lock, directly affects aircraft safe flight in the sky, and can landing gear uplock
Can reliable unlocking directly results in undercarriage put down, and directly affect the landing safety of aircraft.
Conventional airplane landing gear uplock is typically all to use fluid pressure drive device or actuating device of atmospheric pressure, using hydraulic drive
Uplock locking, unlocking function are realized in dynamic or air pressure driving, need numerous and jumbled liquid (gas) pressure prototype part and liquid (gas) pressure pipe road, this is not
The aircraft useful space is only occupied significantly and increases weight, and easily sealing leak failure occurs, influences the normal tasks of aircraft
It executes, and also relatively high to the reliability requirement of its single product, this undoubtedly greatly increases system weight and complexity and makes
At product maintenance, ensure increased costs.
In recent years, with the fast development of baby plane or unmanned plane industry, its safety, high speed, mobility are mentioned
Higher requirement out.It is then desired to which more compact structure, weight are lighter, the higher landing-gear system of system dependability.Tradition
Liquid (gas) presses upper lock system relatively large in baby plane, unmanned plane undercarriage proportion, structure space, largely limits
The requirement such as undercarriage performance, weight, and sealing leak failure have been made, the execution of aircraft normal tasks is influenced.
Summary of the invention
The technical problem to be solved by the present invention is in view of the shortcomings of the prior art, provide a kind of electronic uplock of undercarriage
Device realizes that landing gear uplock is opened by motor, ratchet mechanism, gear, latch mechanism etc.；And it will after gear up
Undercarriage is automatically locked at closed state, and compact overall structure, light-weight, system dependability is higher.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of electronic upper locking device of undercarriage, packet
It includes to be pivoted and is installed on first latch hook and the second latch hook at both ends in lock housing, be equipped on the outside of lock housing matched with the first and second latch hook
First and second stopper and the first and second lock ring, torsional spring of the setting for reset on the first and second latch hook, it is characterized in that, the lock housing
It is pivoted to be equipped with above the first and second interior latch hook and be equipped with and the first lock with the matched hammerlock of the first and second latch hook, the front end of the hammerlock
The matched rolling ring of hook, the middle part of hammerlock and lock housing are pivoted positioning, the rear end setting of hammerlock and the matched motion-stopping surface of the second latch hook,
And hammerlock is equipped with the torsional spring for reset, and the cam that hammerlock can be pushed to rotate clockwise is equipped in the lock housing below hammerlock, and
Latch for limiting angular displacement of the cam is installed in the lock housing below cam；
The side of the lock housing is equipped with motor case, installs that there are two the electricity of the first of cold standby each other in the motor case in parallel
Machine and the second motor, and retarder is installed in the motor case above the first and second motor；It is fixed on the output shaft of first motor
First handle ratchet wheel is installed, the first outer ratchet, the first card slot of middle part of the first outer ratchet, the first handle ratchet wheel are arranged on the first handle ratchet wheel
It is equipped with the first pawl and the first elastomeric pad, and the first spine under the spreading power of the first elastomeric pad or the pressure of the first card slot
Pawl enters or exits the first card slot, to realize locking or unlocking for the first handle ratchet wheel and the first outer ratchet；The output of second motor
The second handle ratchet wheel is fixedly mounted on axis, the second outer ratchet is arranged on the second handle ratchet wheel, the middle part of the second outer ratchet is equipped with the second card
Slot, the second handle ratchet wheel are equipped with the second pawl and the second elastomeric pad, and in the spreading power or the second card slot of the second elastomeric pad
Pressure under the second pawl enter or exit the second card slot, to realize locking or unlocking for the second handle ratchet wheel and the second outer ratchet；
The periphery of first outer ratchet and the second outer ratchet is covered with tooth, and the first outer ratchet and the second outer ratchet simultaneously be mounted on retarder
Gear engagement on input shaft, the output shaft of the retarder stretch out motor case and enter lock housing as motor case output shaft；
Ball-screw is fixedly mounted between lock housing and motor case output shaft, the cam that is pivoted is integrated on the ball-screw, and make convex
Wheel forms integral structure with ball-screw, and is arranged with spring on the ball-screw between cam and lock housing.
The further improvement of above scheme is that two the first pawls and two first are symmetrically arranged on first handle ratchet wheel
Elastomeric pad.Two the second pawls and two the second elastomeric pads are symmetrically arranged on second handle ratchet wheel.
In above scheme, one end and the motor case output shaft of the ball-screw are connected by key, and the other end is by pushing away
Power bearing is connected and fixed with lock housing.
In above scheme, motion-stopping surface is equipped on the inside of the upper end of first latch hook, outside is equipped with sliding surface.
In above scheme, motion-stopping surface is equipped on the outside of the upper end of second latch hook, and top is equipped with locking groove.
In above scheme, the hammerlock is of an L-shaped structure, and the rear end bottom surface of hammerlock and outside are equipped with motion-stopping surface.
In above scheme, the bottom of the cam is equipped with the arresting lever cooperated with the first latch.
It when gear down, needs to open uplock first, to improve electronic uplock unlocking reliability, present invention setting
Two sets of mutually independent first motors and the second motor realize normal unlock and emergent unlocking function respectively.Control system hair
Unlocking instruction control first motor rotation is sent, first motor output torque simultaneously passes through the driving such as ratchet mechanism, retarder, latch mechanism
First and second latch hook is opened, and is detached from the first and second lock ring from undercarriage lock, to realize that undercarriage is unlocked.When a motor loses
After effect or clamping stagnation, the second motor, the starting of the second ratchet mechanism, it is ensured that first motor failure does not influence the unlocking function of the second motor
Can, realize the cold standby state answered emergency opening uplock and ensure that motor.
The electronic upper locking device of undercarriage of the present invention has electronic unlocking, and unlocking mechanism automatically resets, motor driven is double standby
The function of part.The systems member device such as pressurized strut needed for apparatus of the present invention avoid the upper locking device of conventional Take-off and Landing frame, hydraulic, air pressure
Collection space is greatly saved in part, alleviates Landing Gear System weight, reduces system complexity, and improves uplock and open
Reliability is locked, maintenance cost caused by leakage failure is effectively prevented.Especially to the aircraft by electric drive as drive energy
Propose good landing gear uplock solution.
The electronic upper locking device of undercarriage of the present invention is integrated with structure and function, and manipulation is simple, stable working performance, can
Lean on, manufacturing process is simple, it is easy to maintain the features such as, meet modern aircraft undercarriage control equipment demand.
It present invention can be suitably applied to baby plane, the electric retractable system of unmanned plane and large and medium-sized aircraft electric emergency system
System, is with a wide range of applications.
Detailed description of the invention
Fig. 1 is landing gear uplock locked state structural schematic diagram of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is uplock locked state lock housing schematic diagram of internal structure.
Fig. 4 is uplock driving unlocking structure schematic diagram.
Fig. 5 is uplock lockset position of coupler structural schematic diagram.
Fig. 6 is uplock cam return status architecture schematic diagram.
Fig. 7 is double copies motor and ratchet mechanism principle schematic diagram.
Fig. 8 is the first latch hook structure schematic diagram.
Fig. 9 is the second latch hook structure schematic diagram.
Figure 10 is hammerlock structure diagram.
Figure 11 is ball-screw schematic diagram.
Figure 12 is cam structure schematic diagram.
In figure: 1. lock housings；2. the first stopper；3. the first latch hook；4. the first lock ring；5. the second lock ring；6. the second latch hook；
7. the second stopper；8. hammerlock；9. cam；10. torsional spring；11. torsional spring；12. torsional spring；13. first motor；14. ratchet mechanism；15.
Gear；16. retarder；17. motor case；18. key；19. ball-screw；20. spring；21. bearing block；22. thrust bearing；
23. the first latch；24. the second latch；25. the first outer ratchet；251. first card slots；26. the first pawl；27. in first
Ratchet；28. screw；29. the first elastomeric pad；30. the second outer ratchet；301. second card slots；31. the second pawl；32. in second
Ratchet；33. screw；34. the second elastomeric pad；35. axis connection hole；36. torsional spring card slot；37. sliding surface；38. motion-stopping surface；39.
Motion-stopping surface；40. locking groove；41. axis connection hole；42. torsional spring card slot；43. rolling ring；44. torsional spring card slot；45. axis connection hole；
46. motion-stopping surface；47. motion-stopping surface；48. ball-screw tooth；49. ball grooves；50. arresting lever；51. ball-screw tooth.
Specific embodiment
As shown in Fig. 1-Figure 12, a kind of electronic upper locking device of undercarriage of the present invention, including two each other cold standby the
One motor 13 and the second motor (not shown), first motor 13 and the second motor pass through its output shaft respectively and are parallelly mounted to electricity
In machine cabinet 17.The first ratchet mechanism 14 of installation, the first ratchet mechanism 14 are connected by key teeth on the output shaft of first motor 13
First on output shaft including being directly mounted at first motor 13 handle ratchet wheel 27 and be sheathed on the first handle ratchet wheel 27 first
Outer ratchet 25, the middle part of the first outer ratchet 25 are equipped with first card slot 251 of circle, and the first handle ratchet wheel 27 is equipped with two symmetrical first
Pawl 26 and the first elastomeric pad 29, and the first pawl 26 is in the spreading power of the first elastomeric pad 29 or the pressure of the first card slot 251
It sticks into or exits in the first card slot 251 under power effect, the first handle ratchet wheel 27 of realization is locked or unlocked with the first outer ratchet 25；The
The second ratchet mechanism of installation is connected by key teeth on the output shaft of two motors, the second ratchet mechanism includes being directly mounted at the second electricity
Second on the output shaft of machine handle ratchet wheel 32 and the second outer ratchet 30 for being sheathed on the second handle ratchet wheel 32, the second outer ratchet 30
Middle part is equipped with second card slot 301 of circle, and the second handle ratchet wheel 32 is equipped with two symmetrical second pawls 31 and the second elastomeric pad 34,
And second pawl 31 the second card slot 301 pressure or the second elastomeric pad 34 expanding force effect under exit or stick into the second card
Slot 301 realizes the disengagement or locking of the second outer ratchet 30 and the second handle ratchet wheel 32.First outer ratchet 25 and the second outer ratchet 30
Outside is covered with tooth, and the first outer ratchet 25 and the second outer ratchet 30 are engaged with gear 15 respectively.Gear 15 passes through key teeth connection one
The input shaft of 16 one end of retarder.The retarder 16 is installed in motor case 17 by its input shaft and output shaft, and is slowed down
The output shaft of device 16 stretches out motor case 17 and the output shaft output torque as motor case 17.The outside of motor case 17 is set
Lock housing 1 is set, and the output shaft of motor case 17 protrudes into lock housing 1, and installs ball wire between lock housing 1 and motor case output shaft
Thick stick 19.One end of the ball-screw 19 is connect with motor case output shaft by key 18, and the other end passes through thrust bearing 22 and lock
Shell 1 is connected and fixed.It is integrated on ball-screw 19 and is pivoted with cam 9, and make a part of cam 9 as ball-screw 19.Cam 9
Spring 20 is arranged on ball-screw 19 between lock housing 1.The top of cam 9 is installed by hammerlock 8, the both ends bottom point of hammerlock 8
First latch hook 3 and the second latch hook 6 are not installed, correspondence is equipped with the first lock ring 4 and the second lock ring below the first and second latch hook 3,6
5.The first latch 23 and the second latch 24 are installed in the lower section of cam 9, to limit the rotational angle of cam 9.Hammerlock 8, first
The torsional spring 10,11,12 for being installed in lock housing 1 and being separately installed with reset is bolted in latch hook 3 and the second latch hook 6 respectively,
First and second latch 23,24 is installed in lock housing 1 also by being bolted.
A kind of working principle of the electronic upper locking device of undercarriage of the present invention is as described below:
Normal unlocking principle: after landing gear control system sends unlocking instruction to uplock, first motor 13 starts inverse
Hour hands rotate (the second motor does not drive), drive the first handle ratchet wheel 27 to rotate counterclockwise (as shown in Figure 7), on the first handle ratchet wheel 27
The first pawl 26 the first elastomeric pad 29 spreading power effect under stick into the first card slot 251 of the first outer ratchet 25, make
First outer ratchet 25 also rotates counterclockwise, and gear 15 drives lower edge to rotate clockwise in the first outer ratchet 25, the second outer ratchet
30 rotate counterclockwise under the driving of gear 15, at this point, pressure of second pawl 31 in the second card slot 301 of the second outer ratchet 30
The second elastomeric pad 33 of lower compression disengages the second outer ratchet 30 and the second handle ratchet wheel 32, thus at this point, the second handle ratchet wheel 32 not
Rotation, therefore, the torque of first motor are not transferred to and at coaxial mounted second motor of the second handle ratchet wheel 32, realize the
Two motors will not influence first motor as motor-driven cold standby function of meeting an urgent need, the failure (clamping stagnation etc.) of the second motor
13 normal unlocking function；
Gear 15 is rotated clockwise in the case where the first outer ratchet 25 drives, and is driven after improving its output torque by retarder 16
Ball-screw 19 rotates clockwise, and ball-screw 19 and the integrated formation ball screw assembly, of cam 9, ball-screw 19 rotate
When, cam 9 rotates clockwise secondary and prismatic pair to the left shown in Fig. 4 just like shown in Fig. 3, but because cam 9 is by hammerlock 8
The frictional force of the pretightning force and hammerlock 8 of torsional spring 10 and the first and second latch hook 3,6 limits the rotation of cam 9, therefore cam 9 can only be to
The mobile simultaneously compressed spring 20 of left direction shown in Fig. 4, it is convex at this time when cam 9 is moved to the left 21 end face of bearing block and stop
Wheel 9 is only capable of rotating clockwise as shown in Figure 3, when the output torque driving cam 9 of first motor 13 overcomes the torsional spring 10 on hammerlock 8
Pretightning force and the first and second latch hook 3,6 frictional force after, 9 rotate driving hammerlock 8 of cam lifts, to make the first and second latch hook 3,
6 disengage with hammerlock 8, and first motor continues the stop position for driving cam 9 to go to the first latch 23 as shown in Figure 5, at this point, the
One, two lock rings 4,5 are detached from the first and second latch hook 3,6, and uplock is opened.After uplock is unlocked, lock sensor passes unlocking signal
Control system is passed, control system controls first motor 13 and closes, in retarder 16, the first and second ratchet mechanism and the first electricity
In the state that organ closes, ball-screw 19 cannot be inverted, and ball-screw stops at the position of motor closed state, then spring 20
It is mobile to right side as shown in Figure 4 to push cam 9, while cam 9 rotates counterclockwise under the constraint of ball screw assembly, by only
Dynamic pin 23 limits, and completes the reset of cam 9.
Emergent unlocking principle: when normal system failure is not unlocked, control system sends emergency instruction to uplock,
The second motor is driven to rotate counterclockwise, as shown in fig. 7, the second pawl 31 on the second handle ratchet wheel 32 is in the second elastomeric pad 34
It is sticked into the second card slot 301 of the second outer ratchet 30 under the effect of spreading power, rotates counterclockwise the second outer ratchet 30 also, pass through
Gear pair drives gear 15 along rotating clockwise, meanwhile, gear 15 drives the first outer ratchet 25 to rotate counterclockwise, the first pawl
26, which compress the first elastomeric pad 29 under the pressure of the first card slot 251 of the first outer ratchet 25, makes spine in the first outer ratchet and first
Wheel 27 disengages, and therefore, the failure of first motor whether does not influence emergent unlocking function.Subsequent unlocking principle and normal unlocking principle
It is identical.
Uplock locking: when due to undercarriage stowage, there are nonsynchronous situations for the first and second lock ring 4,5.When the second lock ring
5 first in place when, the second lock ring 5 push the second latch hook 6 rotate counterclockwise as shown in Figure 3, inverse time under the action of torsional spring 10 of hammerlock 8
Needle rotation prevents latch hook 6 from rotating clockwise until the motion-stopping surface 47 on hammerlock 8 rotates in the locking groove 40 of latch hook 6, because
This, the freedom degree that the second lock ring 5 moves downward is limited, meanwhile, under the stopping function of the second stopper 7, the second lock ring 5 is upwards
It is limited with the displacement freedom of left and right, so that the second lock ring 5 for connecting undercarriage is locked in uplock.When the first lock ring
4 in place when, the first lock ring 4 pushes the first latch hook 3 to rotate clockwise, and sliding surface 37 on the first latch hook 3 pushes the rolling on hammerlock 8
Rotating ring 43 rotates clockwise hammerlock 8, and after rolling ring 43 and the disengaging of sliding surface 37, the first latch hook 3 continues to be clockwise to
Locked position, hammerlock 8 rotate counterclockwise under the action of torsional spring 10, and the motion-stopping surface 38 on the first latch hook is made to be scrolled 43 stop of ring
And cannot rotate counterclockwise, therefore, the freedom degree that the first lock ring 4 moves downward is limited, meanwhile, in the stop of the first stopper 2
Under effect, the first lock ring 4 is limited with the displacement freedom of left and right upwards, so that the first lock ring 4 for connecting undercarriage be locked
In uplock.When the first and second lock ring 4,5 for connecting undercarriage is locked to uplock latched position simultaneously, realization is risen and fallen
Lock signal on undercarriage is passed to control system by the upper locking of frame, lock sensor, completes undercarriage stowage and movement of locking.
When the first lock ring 4 first in place when, the first lock ring 4 pushes the first latch hook 3 to be clockwise to the first lock as shown in Figure 3
Hook 3 first in place, at this point, the locking of the first latch hook 3 is in place, but since hammerlock 8 is unlocked in place, so the first lock ring 4 and unlocked.
When the second lock ring 5 is received up to locked position, the second lock ring 5 pushes the second latch hook 6 to rotate counterclockwise as shown in Figure 3, and hammerlock 8 exists
It rotates counterclockwise under the action of torsional spring 10, until the motion-stopping surface 47 on hammerlock 8 rotates in the locking groove 40 of the second latch hook 6, makes
Second latch hook 6 cannot rotate clockwise, so that the displacement freedom that the second lock ring 5 of limitation is downward, makees in the stop of the second stopper 7
Under, the second lock ring 5 is limited with the displacement freedom of left and right upwards, so that the second lock ring 5 for connecting undercarriage is locked in
In uplock.While hammerlock 8 rotates counterclockwise, so that the motion-stopping surface 38 on the first latch hook 3 is scrolled 43 stop of ring and cannot be inverse
Hour hands rotation, thus the displacement freedom that the first lock ring 4 of limitation is downward, under the stopping function of the first stopper 2, the first lock ring 4
It is limited upwards with the displacement freedom of left and right, so that the first lock ring 4 for connecting undercarriage is locked in uplock.Work as connection
When first and second lock ring 4,5 of undercarriage is locked to uplock latched position simultaneously, the upper locking of undercarriage is realized.Lock passes
Lock signal on undercarriage is passed to control system by sensor, completes undercarriage stowage and movement of locking.
Claims (8)
1. a kind of electronic upper locking device of undercarriage, first latch hook (3) and second at lock housing (1) interior both ends is installed on including being pivoted
Latch hook (6), lock housing outside are equipped with and the first and second latch hook (3,6) matched first and second stopper (2,7) and the first and second lock ring
(4,5), torsional spring of the setting for reset on the first and second latch hook (3,6), which is characterized in that the first and second latch hook in the lock housing
Top is pivoted to be equipped with and is equipped with and matches with the first latch hook with the matched hammerlock (8) of the first and second latch hook (3,6), the front end of the hammerlock
Rolling ring (43), the middle part of hammerlock and lock housing be pivoted positioning, the rear end setting of hammerlock and the matched motion-stopping surface of the second latch hook, and
Hammerlock is equipped with the torsional spring for reset, and the cam (9) that hammerlock can be pushed to rotate clockwise is equipped in the lock housing below hammerlock, and
The first latch (23) and the second latch (24) for limiting angular displacement of the cam is installed in the lock housing below cam；
The side of the lock housing is equipped with motor case (17), and there are two the first electricity of cold standby each other for installation in parallel in the motor case
Machine (13) and the second motor, and retarder (16) are installed in the motor case above the first and second motor；The output of first motor
It is fixedly mounted on axis the first handle ratchet wheel (27), the first outer ratchet (25) is arranged on the first handle ratchet wheel, is set in the middle part of the first outer ratchet
Have the first card slot (251), the first handle ratchet wheel is equipped with the first pawl (26) and the first elastomeric pad (29), and in the first elastic cushion
The first pawl enters or exits the first card slot under the spreading power of piece or the pressure of the first card slot, to realize the first handle ratchet wheel and first
Outer ratchet locks or unlocks；It is fixedly mounted on the output shaft of second motor the second handle ratchet wheel (32), is arranged on the second handle ratchet wheel
The middle part of second outer ratchet (30), the second outer ratchet is equipped with the second card slot (301), and the second handle ratchet wheel is equipped with the second pawl (31)
With the second elastomeric pad (34), and under the spreading power of the second elastomeric pad or the pressure of the second card slot the second pawl enter or move back
Second card slot out, to realize locking or unlocking for the second handle ratchet wheel and the second outer ratchet；First outer ratchet and the second outer ratchet
Periphery is covered with tooth, and the first outer ratchet and the second outer ratchet are engaged with the gear (15) being mounted on reducer input shaft simultaneously,
The output shaft of the retarder stretches out motor case and enters lock housing as motor case output shaft；Lock housing and motor case output shaft
Between ball-screw (19) are fixedly mounted, integrate on the ball-screw and be pivoted the cam (9), and make cam and ball-screw shape
It is into a single integrated structure, and spring (20) are arranged on the ball-screw between cam (9) and lock housing.
2. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that on first handle ratchet wheel
It is symmetrically arranged with two the first pawls and two the first elastomeric pads.
3. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that on second handle ratchet wheel
It is symmetrically arranged with two the second pawls and two the second elastomeric pads.
4. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that the one of the ball-screw
End is connect with motor case output shaft by key (18), and the other end is connected and fixed by thrust bearing (22) with lock housing.
5. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that first latch hook it is upper
End inside is equipped with motion-stopping surface (38), and outside is equipped with sliding surface (37).
6. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that second latch hook it is upper
End outside is equipped with motion-stopping surface (39), and top is equipped with locking groove (40).
7. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that the L-shaped knot of hammerlock
Structure, and the rear end bottom surface of hammerlock is equipped with motion-stopping surface (47), is equipped with motion-stopping surface (46) on the outside of the rear end of hammerlock.
8. the electronic upper locking device of a kind of undercarriage according to claim 1, which is characterized in that the bottom of the cam is set
There is the arresting lever (50) with the cooperation of the first latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806251.2A CN107600394B (en) | 2017-09-08 | 2017-09-08 | A kind of electronic upper locking device of undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806251.2A CN107600394B (en) | 2017-09-08 | 2017-09-08 | A kind of electronic upper locking device of undercarriage |
Publications (2)
| Publication Number | Publication Date |
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| CN107600394A CN107600394A (en) | 2018-01-19 |
| CN107600394B true CN107600394B (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710806251.2A Active CN107600394B (en) | 2017-09-08 | 2017-09-08 | A kind of electronic upper locking device of undercarriage |
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| CN (1) | CN107600394B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2581793A (en) * | 2019-02-25 | 2020-09-02 | Airbus Operations Ltd | Aircraft landing gear uplock system |
| CN110758724B (en) * | 2019-11-12 | 2021-01-01 | 中航飞机起落架有限责任公司 | Self-locking mechanism for landing gear down position of airplane |
| CN110901904A (en) * | 2019-12-06 | 2020-03-24 | 西安爱生技术集团公司 | Retractable blocking hook device of unmanned aerial vehicle |
| CN113550663A (en) * | 2020-04-23 | 2021-10-26 | 北京宏业兴科贸有限责任公司 | Single three-lock hole electric control lock |
| CN112718263A (en) * | 2020-12-24 | 2021-04-30 | 青岛海特生物医疗有限公司 | Mechanism for locking and centrifuge using same |
| CN112623204B (en) * | 2021-02-18 | 2023-03-10 | 江西洪都航空工业集团有限责任公司 | Undercarriage mechanism of going back to well |
| CN113955090B (en) * | 2021-12-17 | 2024-01-30 | 江西洪都航空工业集团有限责任公司 | Integrated landing gear upper lock |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8625505D0 (en) * | 1986-10-24 | 1986-11-26 | Dowty Rotol Ltd | Locking mechanisms |
| GB0315941D0 (en) * | 2003-07-08 | 2003-08-13 | Smiths Group Plc | Locking mechanisms |
| US8814094B2 (en) * | 2008-04-04 | 2014-08-26 | Tactair Fluid Controls, Inc. | Locking mechanism with bi-modal actuator |
| 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 |
| CN204210730U (en) * | 2014-09-18 | 2015-03-18 | 中国商用飞机有限责任公司 | Landing gear uplock mechanism |
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2017
- 2017-09-08 CN CN201710806251.2A patent/CN107600394B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107600394A (en) | 2018-01-19 |
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