CN107600394A - 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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- CN107600394A CN107600394A CN201710806251.2A CN201710806251A CN107600394A CN 107600394 A CN107600394 A CN 107600394A CN 201710806251 A CN201710806251 A CN 201710806251A CN 107600394 A CN107600394 A CN 107600394A
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- hammerlock
- ratchet
- latch hook
- lock housing
- cam
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Abstract
The invention discloses a kind of electronic upper locking device of undercarriage, it includes the first motor and the second motor of two cold standbies each other, and first and second motor is connected by first and second ratchet mechanism with the gear being arranged on decelerator respectively；Ball-screw is fixedly mounted between the output shaft and lock housing of decelerator, be pivoted cam, and sheathed spring on the ball-screw between cam and lock housing are integrated on ball-screw；The cam is arranged at below hammerlock, can promote hammerlock, hammerlock is discharged first and second latch hook and is realized that unlocking, or hammerlock reset under torsion spring effect, realizes the locking to first and second latch hook.This invention simplifies landing-gear system, the system component such as conventional pressurized strut, hydraulic pressure, air pressure is eliminated, collection space, the reliability for alleviating weight, improving system is greatlyd save, avoids maintenance cost caused by leakage failure.
Description
Technical field
The present invention relates to undercarriage extension and retraction system, particularly a kind of electronic upper locking device of undercarriage.
Background technology
Can landing gear uplock, which reliably lock, directly affects aircraft safe flight in the air, 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, is driven using hydraulic pressure
Uplock locking, unlocking function are realized in the driving of dynamic or air pressure, need numerous and jumbled liquid（Gas）Press prototype part and liquid（Gas）Pressure pipe road, this is not
The aircraft useful space is only occupied significantly and adds weight, and easily sealing leak failure occurs, influences the normal tasks of aircraft
Perform, and it is also of a relatively high to the reliability requirement of its single product, and this undoubtedly greatly increases system weight and complexity and made
Into product maintenance, ensure cost increase.
In recent years, with the fast development of baby plane or unmanned plane industry, its security, high speed, mobility are carried
Go out higher requirement.It is then desired to the landing-gear system that more compact structure, weight are lighter, system dependability is higher.Tradition
Liquid（Gas）Press upper lock system relatively large in baby plane, unmanned plane undercarriage proportion, structure space, largely limit
The requirement such as undercarriage performance, weight, and sealing leak failure have been made, has influenceed the execution of aircraft normal tasks.
The content of the invention
The technical problems to be solved by the invention are, in view of the shortcomings of the prior art, providing a kind of undercarriage electronic uplock
Device, it realizes that landing gear uplock is opened by motor, ratchet mechanism, gear, latch mechanism etc.；And will after gear up
Undercarriage is automatically locked at closed mode, and compact overall structure, in light weight, system dependability is higher.
In order to solve the above technical problems, the present invention adopts the technical scheme that：A kind of electronic upper locking device of undercarriage, bag
Include to be pivoted and be installed on first latch hook and the second latch hook at both ends in lock housing, be provided with what is matched with first and second latch hook on the outside of lock housing
First and second stopper and first and second lock ring, the torsion spring resetted is provided on first and second latch hook, its feature is, the lock housing
Be pivoted the hammerlock for being provided with and being matched with first and second latch hook above first and second interior latch hook, and the front end of the hammerlock is provided with and the first lock
The rolling ring of hook matching, the middle part of hammerlock and lock housing are pivoted positioning, the stop surface that the rear end setting of hammerlock matches with the second latch hook,
The cam that hammerlock rotates clockwise can be promoted by being provided with and hammerlock is provided with the torsion spring for resetting, 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 provided with motor case, in the motor case it is parallel be provided with two each other the first motor of cold standby and
Second motor, and decelerator is installed in the motor case above first and second motor；It is fixedly mounted on the output shaft of first motor
First handle ratchet wheel, is arranged the first outer ratchet on the first handle ratchet wheel, the neck of middle part first of the first outer ratchet, is set on the first handle ratchet wheel
There are the first ratchet and the first elastomeric pad, and the first ratchet enters under the spreading power of the first elastomeric pad or the pressure of the first neck
Enter or exit the first neck, to realize the locking or unblock of the first handle ratchet wheel and the first outer ratchet；On the output shaft of second motor
The second handle ratchet wheel is fixedly mounted, the second outer ratchet is arranged on the second handle ratchet wheel, the middle part of the second outer ratchet is provided with the second neck, the
Two handle ratchet wheels are provided with the second ratchet and the second elastomeric pad, and in the spreading power of the second elastomeric pad or the pressure of the second neck
Lower second ratchet enters or exits the second neck, to realize the locking or unblock of the second handle ratchet wheel and the second outer ratchet；Outside first
The periphery of ratchet and the second outer ratchet is covered with tooth, and the first outer ratchet and the second outer ratchet simultaneously with installed in reducer input shaft
On gear engagement, the output shaft of the decelerator stretches out motor case and simultaneously enters lock housing as motor case output shaft；Lock housing with
Ball-screw is fixedly mounted between motor case output shaft, the cam that is pivoted is integrated on the ball-screw, and makes cam and rolling
Ballscrew forms integrative-structure, and is arranged with spring on the ball-screw between cam and lock housing.
Such scheme is further improved to, and two the first ratchets and two first are arranged with first handle ratchet wheel
Elastomeric pad.Two the second ratchets and two the second elastomeric pads are arranged with second handle ratchet wheel.
In such scheme, one end of the ball-screw is with motor case output shaft by key connection, and the other end is by pushing away
Power bearing is connected with lock housing.
In such scheme, stop surface is provided with the inside of the upper end of first latch hook, outside is provided with sliding surface.
In such scheme, stop surface is provided with the outside of the upper end of second latch hook, and top is provided with locking groove.
In such scheme, the hammerlock is of an L-shaped structure, and the rear end bottom surface of hammerlock and outside are provided with stop surface.
In such scheme, the bottom of the cam is provided with the arresting lever coordinated with the first latch.
When gear down, need to open uplock first, to improve electronic uplock unlocking reliability, the present invention is set
Two sets of separate first motors and the second motor, normal unlock and emergent unlocking function is realized respectively.Control system is sent out
Unlocking instruction is sent to control the first motor to rotate, the first motor output torque is simultaneously driven by ratchet mechanism, decelerator, latch mechanism etc.
First and second latch hook is opened, and first and second lock ring is departed from from undercarriage lock, so as to realize that undercarriage is unlocked.When a motor loses
After effect or clamping stagnation, the second motor, the second ratchet mechanism start, it is ensured that the first electrical fault does not influence the unlocking work(of the second motor
Can, realization answers emergency opening uplock and ensure that the cold standby state of motor.
The electronic upper locking device of undercarriage of the present invention, has electronic unlocking, and unlocking mechanism automatically resets, motor driving is double standby
The function of part.Apparatus of the present invention avoid the system member devices such as pressurized strut needed for the upper locking device of conventional Take-off and Landing frame, hydraulic pressure, air pressure
Part, collection space is greatlyd save, alleviate Landing Gear System weight, reduce system complexity, and improved uplock and open
Reliability is locked, effectively prevent maintenance cost caused by leakage failure.Especially to by aircraft of the electric drive as drive energy
Propose good landing gear uplock solution.
There is the electronic upper locking device of undercarriage of the present invention 26S Proteasome Structure and Function to integrate, and manipulate simple, stable work in work, can
Lean on, manufacturing process is simple, the features such as easy care, meets the demand of present generation aircraft undercarriage control equipment.
It present invention can be suitably applied to baby plane, the electric retractable system of unmanned plane and big-and-middle-sized aircraft electric emergency system
System, is with a wide range of applications.
Brief description of the drawings
Fig. 1 is landing gear uplock locking state structural representation of the present invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is uplock locking state lock housing internal structure schematic diagram.
Fig. 4 is uplock driving unlocking structure schematic diagram.
Fig. 5 is uplock lockset position of coupler structural representation.
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 sketch.
Fig. 9 is the second latch hook structure sketch.
Figure 10 is hammerlock structure diagram.
Figure 11 is ball-screw schematic diagram.
Figure 12 is cam structure schematic diagram.
In figure：1. lock housing；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. torsion spring；11. torsion spring；12. torsion spring；13. the first motor；14. ratchet mechanism；15.
Gear；16. decelerator；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 necks；26. the first ratchet；27. in first
Ratchet；28. screw；29. the first elastomeric pad；30. the second outer ratchet；301. second necks；31. the second ratchet；32. in second
Ratchet；33. screw；34. the second elastomeric pad；35. axis connection hole；36. torsion spring neck；37. sliding surface；38. stop surface；39.
Stop surface；40. locking groove；41. axis connection hole；42. torsion spring neck；43. rolling ring；44. torsion spring neck；45. axis connection hole；
46. stop surface；47. stop surface；48. ball-screw tooth；49. ball grooves；50. arresting lever；51. ball-screw tooth.
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（Do not show in figure）, the first motor 13 and the second motor are parallelly mounted to electricity by its output shaft respectively
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
Including the first handle ratchet wheel 27 and be sheathed on the first handle ratchet wheel 27 first being directly mounted on the output shaft of the first motor 13
Outer ratchet 25, the middle part of the first outer ratchet 25 are provided with first neck 251 of circle, and the first handle ratchet wheel 27 is provided with two symmetrical first
The elastomeric pad 29 of ratchet 26 and first, and the first ratchet 26 is in the spreading power of the first elastomeric pad 29 or the pressure of the first neck 251
Stick into or exit in the first neck 251 under power effect, realize the locking or unblock of the first handle ratchet wheel 27 and 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
The second handle ratchet wheel 32 and the second outer ratchet 30 being sheathed on the second handle ratchet wheel 32 on the output shaft of machine, the second outer ratchet 30
Middle part is provided with second neck 301 of circle, and the second handle ratchet wheel 32 is provided with the two symmetrical elastomeric pads 34 of second ratchet 31 and second,
And second ratchet 26 the second neck 301 pressure or the second elastomeric pad 34 expanding force effect under exit or stick into the second card
Groove 301, realize the disengagement or locking of the second outer handle ratchet wheel 32 of ratchet 30 and second.First outer 25 and second outer ratchet 30 of ratchet
Outside is covered with tooth, and the first outer 25 and second outer ratchet 30 of ratchet engages with gear 15 respectively.Gear 15 connects one by key teeth
The input shaft of the one end of decelerator 16.The decelerator 16 is installed in motor case 17 by its input shaft and output shaft, and is slowed down
The output shaft of device 16 stretch out motor case 17 and as the output shaft output torque of motor case 17.The outside of motor case 17 is set
Lock housing 1 is put, and the output shaft of motor case 17 stretches into lock housing 1, and ball wire is installed between lock housing 1 and motor case output shaft
Thick stick 19.One end of the ball-screw 19 is connected with motor case output shaft by key 18, and the other end passes through thrust bearing 22 and lock
Shell 1 is connected.Integrated on ball-screw 19 and be pivoted with cam 9, and make a part of the cam 9 as ball-screw 19.Cam 9
Spring 20 is arranged with ball-screw 19 between lock housing 1.The top installation hammerlock 8 of cam 9, the both ends bottom point of hammerlock 8
First latch hook 3 and the second latch hook 6 are not installed, first lock ring 4 and the second lock ring are correspondingly installed below 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 latch hook 6 of latch hook 3 and second is bolted the torsion spring 10,11,12 for being installed in lock housing 1 and being separately installed with reset respectively,
First and second latch 23,24 is installed in lock housing 1 also by bolt connection.
A kind of operation 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, the first motor 13 starts counterclockwise
Rotate（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
One ratchet 26 is sticked into the first neck 251 of the first outer ratchet 25 under the spreading power effect of the first elastomeric pad 29, makes first
Outer ratchet 25 also rotates counterclockwise, and gear 15 drives lower edge to rotate clockwise in the first outer ratchet 25, and the second outer ratchet 30 exists
Gear 15 rotates counterclockwise under driving, and now, the second ratchet 31 pushes in the pressure of the second neck 301 of the second outer ratchet 30
Second elastomeric pad 33 that contracts makes the second outer ratchet 30 be disengaged with the second handle ratchet wheel 32, thus now, the second handle ratchet wheel 32 does not rotate,
Therefore, the torque of the first motor is not transferred to at 32 coaxial mounted second motor of the second handle ratchet wheel, realizing the second electricity
Machine is as motor-driven cold standby function of meeting an urgent need, the failure of the second motor（Clamping stagnation etc.）The first motor 13 is not interfered with yet
Normal unlocking function；
Gear 15 is rotated clockwise in the case where the first outer ratchet 25 drives, and ball is driven after improving its output torque by decelerator 16
Leading screw 19 rotates clockwise, ball-screw 19 and the integrated formation ball screw assembly, of cam 9, convex when ball-screw 19 rotates
Wheel 9 has the prismatic pair to the left rotated clockwise shown in secondary and Fig. 4 as shown in Figure 3, but because cam 9 is by the torsion spring on hammerlock 8
10 pretightning force and the frictional force of the latch hook 3,6 of hammerlock 8 and first and second, limit cam 9 and rotate, therefore cam 9 can only be to Fig. 4
Shown left direction movement and compression spring 20, when cam 9 is moved to the left the end face of bearing block 21 and stop, now cam 9
It is only capable of rotating clockwise as shown in Figure 3, when the output torque driving cam 9 of the first motor 13 overcomes the torsion spring 10 on hammerlock 8
After pretightning force and the frictional force of first and second latch hook 3,6, cam 9 rotates driving hammerlock 8 and lifted, so that first and second latch hook 3,6
Being disengaged with hammerlock 8, the first motor continues the stop position that driving cam 9 goes to the first latch 23 as shown in Figure 5, now, first,
Two lock rings 4,5 depart from first and second latch hook 3,6, and uplock is opened.After uplock is unlocked, lock sensor transmits unlocking signal
To control system, control system controls the first motor 13 to close, in decelerator 16, first and second ratchet mechanism and the first motor
In the state of closing, ball-screw 19 can not invert, and ball-screw stops at the position of motor closed mode, and then spring 20 pushes away
Moving cam 9 moves to right side as shown in Figure 4, while cam 9 rotates counterclockwise under the constraint of ball screw assembly, passes through stop
Pin 23 is spacing, completes the reset of cam 9.
Emergent unlocking principle：When normal system, which breaks down, does not unlock, control system sends emergent instruction to uplock,
The second motor is driven to rotate counterclockwise, as shown in fig. 7, the second ratchet 31 on the second handle ratchet wheel 32 is in the second elastomeric pad 34
Sticked under the effect of spreading power in the second neck 301 of the second outer ratchet 30, the second outer ratchet 30 is also rotated counterclockwise, pass through
Gear pair drive gear 15 along rotating clockwise, meanwhile, gear 15 drives the first outer ratchet 25 to rotate counterclockwise, the first ratchet
26 compress the first elastomeric pad 29 under the pressure of the first neck 251 of the first outer ratchet 25 makes spine in the first outer ratchet and first
Wheel 27 disengages, and therefore, whether the failure of the first motor does not influence emergent unlocking function.Follow-up unlocking principle and normal unlocking principle
It is identical.
Uplock is locked：During due to undercarriage stowage, there is nonsynchronous situation in first and second lock ring 4,5.When the second lock ring
5 first in place when, the second lock ring 5 promote the second latch hook 6 rotate counterclockwise as shown in Figure 3, the inverse time in the presence of torsion spring 10 of hammerlock 8
Pin rotates, until the stop surface 47 on hammerlock 8 is rotated in the locking groove 40 of latch hook 6, prevents latch hook 6 from rotating clockwise, because
This, the free 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 upward
Displacement freedom with left and right is limited, so as to which 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 promotes the first latch hook 3 to rotate clockwise, and sliding surface 37 on the first latch hook 3 promotes 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
Upper lock position, hammerlock 8 rotate counterclockwise in the presence of torsion spring 10, the stop surface 38 on the first latch hook is scrolled the stop of ring 43
And can not rotate counterclockwise, therefore, the free degree that the first lock ring 4 moves downward is limited, meanwhile, in the stop of the first stopper 2
Under effect, the first 4 displacement freedom upwards with left and right of lock ring is limited, so as to which the first lock ring 4 for connecting undercarriage be locked
In uplock.When 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 action of locking.
When the first lock ring 4 first in place when, the first lock ring 4 promotes the first latch hook 3 to be clockwise to the first lock as shown in Figure 3
First in place, now, the first latch hook 3 is locked in place for hook 3, but because hammerlock 8 is unlocked in place, so the first lock ring 4 and unlocked.
When the second lock ring 5 receives up to upper lock position, the second lock ring 5 promotes the second latch hook 6 to rotate counterclockwise as shown in Figure 3, and hammerlock 8 exists
Rotate counterclockwise in the presence of torsion spring 10, until the stop surface 47 on hammerlock 8 is rotated in the locking groove 40 of the second latch hook 6, make
Second latch hook 6 can not rotate clockwise, and so as to limit the downward displacement freedom of the second lock ring 5, make in the stop of the second stopper 7
Under, the second 5 displacement freedom upwards with left and right of lock ring is limited, so as to which the second lock ring 5 for connecting undercarriage be locked in
In uplock.While hammerlock 8 rotates counterclockwise, the stop surface 38 on the first latch hook 3 is scrolled the stop of ring 43 and can not be inverse
Hour hands rotate, so as to limit the downward displacement freedom of the first lock ring 4, under the stopping function of the first stopper 2, the first lock ring 4
The displacement freedom with left and right is limited upwards, so as to which 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 action of locking.
Claims (8)
1. a kind of electronic upper locking device of undercarriage, including be pivoted and be installed on lock housing（1）First latch hook at interior both ends（3）With second
Latch hook（6）, lock housing outside is provided with and first and second latch hook（3、6）First and second stopper of matching（2、7）With first and second lock ring
（4、5）, first and second latch hook（3、6）On be provided for reset torsion spring, it is characterised in that first and second latch hook in the lock housing
Top, which is pivoted, to be provided with and first and second latch hook（3、6）The hammerlock of matching（8）, the front end of the hammerlock is provided with to be matched with the first latch hook
Rolling ring（43）, the middle part of hammerlock and lock housing be pivoted positioning, the stop surface that the rear end setting of hammerlock matches with the second latch hook, and
Hammerlock is provided with the torsion spring for resetting, and the cam that hammerlock rotates clockwise can be promoted by being provided with the lock housing below hammerlock（9）, and
The first latch for limiting angular displacement of the cam is installed in the lock housing below cam（23）With the second latch（24）；
The side of the lock housing is provided with motor case（17）, parallel the first electricity for being provided with two cold standbies each other in the motor case
Machine（13）With the second motor, and decelerator is installed in the motor case above first and second motor（16）；The output of first motor
The first handle ratchet wheel is fixedly mounted on axle（27）, the first outer ratchet is arranged on the first handle ratchet wheel（25）, set in the middle part of the first outer ratchet
There is the first neck（251）, the first handle ratchet wheel is provided with the first ratchet（26）With the first elastomeric pad（29）, and in the first cushion
The first ratchet enters or exits the first neck under the spreading power of piece or the pressure of the first neck, to realize the first handle ratchet wheel and first
The locking or unblock of outer ratchet；The second handle ratchet wheel is fixedly mounted on the output shaft of second motor（32）, it is arranged on the second handle ratchet wheel
Second outer ratchet（30）, the middle part of the second outer ratchet is provided with the second neck（301）, the second handle ratchet wheel is provided with the second ratchet（31）
With the second elastomeric pad（34）, and the second ratchet enters or moved back under the spreading power of the second elastomeric pad or the pressure of the second neck
Go out the second neck, to realize the locking or unblock of 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 simultaneously with the gear on reducer input shaft（15）Engagement,
The output shaft of the decelerator stretches out motor case and enters lock housing as motor case output shaft；Lock housing and motor case output shaft
Between ball-screw is fixedly mounted（19）, the cam that is pivoted is integrated on the ball-screw（9）, and make cam and ball-screw shape
It is into a single integrated structure, and cam（9）Spring is arranged with ball-screw between lock housing（20）.
2. the electronic upper locking device of a kind of undercarriage according to claim 1, it is characterised in that on first handle ratchet wheel
It is arranged with two the first ratchets and two the first elastomeric pads.
3. the electronic upper locking device of a kind of undercarriage according to claim 1, it is characterised in that on second handle ratchet wheel
It is arranged with two the second ratchets and two the second elastomeric pads.
A kind of 4. electronic upper locking device of undercarriage according to claim 1, it is characterised in that the one of the ball-screw
End passes through key with motor case output shaft（18）Connection, the other end pass through thrust bearing（22）It is connected with lock housing.
A kind of 5. electronic upper locking device of undercarriage according to claim 1, it is characterised in that first latch hook it is upper
End inner side is provided with stop surface（38）, outside is provided with sliding surface（37）.
A kind of 6. electronic upper locking device of undercarriage according to claim 1, it is characterised in that second latch hook it is upper
End outside is provided with stop surface（39）, and top is provided with locking groove（40）.
A kind of 7. electronic upper locking device of undercarriage according to claim 1, it is characterised in that the L-shaped knot of hammerlock
Structure, and the rear end bottom surface of hammerlock is provided with stop surface（47）, the rear end outside of hammerlock is provided with stop surface（46）.
8. the electronic upper locking device of a kind of undercarriage according to claim 1, it is characterised in that the bottom of the cam is set
There is the arresting lever coordinated with the first latch（50）.
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 |
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| 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 |
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| CN107600394A true CN107600394A (en) | 2018-01-19 |
| CN107600394B CN107600394B (en) | 2019-06-21 |
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| CN201710806251.2A Active CN107600394B (en) | 2017-09-08 | 2017-09-08 | A kind of electronic upper locking device of undercarriage |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758724A (en) * | 2019-11-12 | 2020-02-07 | 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 |
| CN111605700A (en) * | 2019-02-25 | 2020-09-01 | 空中客车营运有限公司 | Aircraft landing gear uplock system |
| CN112623204A (en) * | 2021-02-18 | 2021-04-09 | 江西洪都航空工业集团有限责任公司 | Novel undercarriage centering mechanism |
| 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 |
| 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 |
| CN113955090A (en) * | 2021-12-17 | 2022-01-21 | 江西洪都航空工业集团有限责任公司 | Integral landing gear uplock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605700A (en) * | 2019-02-25 | 2020-09-01 | 空中客车营运有限公司 | Aircraft landing gear uplock system |
| CN110758724A (en) * | 2019-11-12 | 2020-02-07 | 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 |
| CN112623204A (en) * | 2021-02-18 | 2021-04-09 | 江西洪都航空工业集团有限责任公司 | Novel undercarriage centering mechanism |
| CN113955090A (en) * | 2021-12-17 | 2022-01-21 | 江西洪都航空工业集团有限责任公司 | Integral landing gear uplock |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN107600394B (en) | 2019-06-21 |
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