CN107380406A - A kind of aircraft backplate joins breaking mechanism - Google Patents
A kind of aircraft backplate joins breaking mechanism Download PDFInfo
- Publication number
- CN107380406A CN107380406A CN201710569512.3A CN201710569512A CN107380406A CN 107380406 A CN107380406 A CN 107380406A CN 201710569512 A CN201710569512 A CN 201710569512A CN 107380406 A CN107380406 A CN 107380406A
- Authority
- CN
- China
- Prior art keywords
- backplate
- rocking arm
- latch hook
- connection
- key
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/001—Devices not provided for in the groups B64C25/02 - B64C25/68
Abstract
A kind of aircraft backplate joins breaking mechanism, and the 3rd joint one end is arranged on the shaft axis of backplate, and the other end is connected with the piston rod of backplate retractable actuating cylinder, and limiting bush is arranged in the 3rd joint, and the rocking arm with latch hook is fixed on shell；Second spring one end is connected with the rocking arm with latch hook, and the other end is connected with cornual plate, and the first spring one end is connected with the rocking arm of key with pressure, and the other end is connected with cornual plate, and cornual plate is fixed on shell；Covering connection sheet and backplate covering riveting, and through hole is provided between covering connection sheet and backplate covering, while the termination of key and the flush with outer surface of backplate covering are pressed, the stopper slot for entering row constraint to the rocking arm with latch hook is provided with the rocking arm of key with pressure；By pressing pressure key band motion rocker arm, you can the quick connection for disconnecting backplate and backplate retractable actuating cylinder；After the completion of work, push backplate to closed position manually, the rocking arm with latch hook is completed to lock, simple and reliable for structure to complete the closing of backplate, effectively improves the maintainability of aircraft.
Description
Technical field
The present invention relates to aircaft configuration technical field, more particularly to a kind of aircraft backplate connection breaking mechanism.
Background technology
In Aircraft landing gear system, undercarriage backplate mainly has pillar backplate, wheel backplate etc., and its function is to ensure
Aerodynamic Configuration of Aireraft, the unfolding mode of backplate generally have two kinds：It is a kind of be directly by pressurized strut folding and unfolding control backplate open or
Person closes, and another kind is trailing type, i.e. backplate is connected by pull bar with undercarriage or undercarriage control pressurized strut, with undercarriage
Folding and unfolding and open or close；Current most airplane wheel backplates are to control beating for backplate by the folding and unfolding of pressurized strut
On or off is closed, simultaneously because aircraft general requirement, when gear down, needs to close by the wheel backplate of pressurized strut driving
Close.
When on ground, the annex in wheel wheel cabin is overhauled and safeguarded, backplate need to be opened, and under normal circumstances, fly
Machine does not have hydraulic power source and source of the gas when ground is parked to open backplate, now manually disconnects hydraulic actuator by ground crew
With the bolt connection of backplate, yet with undercarriage wheel wheel cabin space than narrow, during so causing bolt disassembly, hand
Scope of activities be very restricted, therefore dismount safeguard it is very hard.
The content of the invention
Technical problem solved by the invention is to provide a kind of aircraft backplate connection breaking mechanism, to solve above-mentioned background technology
The shortcomings that middle.
Technical problem solved by the invention is realized using following technical scheme：
A kind of aircraft backplate joins breaking mechanism, including the 3rd joint, the rocking arm with latch hook, shell, the first spring, key with pressure shake
Arm, second spring, limiting bush, cornual plate, covering connection sheet and backplate covering, wherein, the 3rd joint one end is arranged on backplate
On shaft axis, the other end is connected with the piston rod of backplate retractable actuating cylinder, and limiting bush is arranged in the 3rd joint, with latch hook
Rocking arm is fixed on shell；Second spring one end is connected with the rocking arm with latch hook, and the other end is connected with cornual plate, the first spring one end
It is connected with the rocking arm of key with pressure, the other end is connected with cornual plate, and cornual plate is fixed on shell；Covering connection sheet and backplate covering riveting
Connect, and be provided between covering connection sheet and backplate covering and be used to place when backplate connection breaking mechanism is in connection lock-out state
The through hole of rocking arm for pressing key, while the termination of key and the flush with outer surface of backplate covering are pressed, it is provided with and is used on the rocking arm of key with pressure
Enter the stopper slot of row constraint to the rocking arm with latch hook.
In the present invention, backplate connection breaking mechanism one end connection backplate retractable actuating cylinder, other end connection backplate, and set on backplate
It is equipped with the first joint and the second joint.
In the present invention, the 3rd joint is connected by jointing with the piston rod of backplate retractable actuating cylinder.
In the present invention, the rocking arm with latch hook is fixed on shell by the second bolt, the first pad, the second pad.
In the present invention, it is provided with the second bolt for locking nut and split pin.
In the present invention, in order that the rocking arm with latch hook rotates flexibly, pacify between the rocking arm with latch hook and the second bolt
Equipped with nine class precision bushings.
In the present invention, cornual plate is fixed on shell by rivet.
In the present invention, when backplate connection breaking mechanism is in connection lock-out state, the rocking arm with latch hook receives backplate and backplate
Pressurized strut to be put to link together, backplate carries out folding and unfolding in the presence of backplate retractable actuating cylinder, because the rocking arm with latch hook acts on,
The folding and unfolding movement locus of backplate retractable actuating cylinder is determined, it is necessary to when opening backplate, and the pressure of the rocking arm of key with pressure is pressed outside backplate
Key, to release constraint of the stopper slot on the rocking arm of key with pressure to the rocking arm with latch hook, the rocking arm with latch hook is in second spring
Limiting bush, and then the connection of the rocking arm of disconnecting strip latch hook and the 3rd joint are automatically disengaged under effect, that is, disconnects backplate and backplate
Connection between retractable actuating cylinder；
When be in unlocking condition, backplate freely rotates backplate connection breaking mechanism, when needing that backplate and backplate retractable actuating cylinder are carried out
During connection, push backplate to closed position manually, the latch hook on the rocking arm with latch hook contacts with the limiting bush on the 3rd joint
Afterwards, rotated in the presence of limiting bush, the first spring drives the rocking arm of key with pressure to rotate, until the rocking arm with latch hook is with pressure
Stopper slot on the rocking arm of key is pinned, and now, backplate is connected with backplate retractable actuating cylinder, work of the backplate in backplate retractable actuating cylinder
Folding and unfolding is carried out under.
Beneficial effect：The present invention is by pressing pressure key band motion rocker arm, you can quick to disconnect backplate and backplate retractable actuating cylinder
Connection, backplate is opened；After the completion of work, push backplate to closed position manually, the rocking arm with latch hook is completed to lock, backplate
Automatically it is reliably connected with backplate retractable actuating cylinder, the folding and unfolding exercise recovery of backplate is extremely controlled by backplate retractable actuating cylinder,
It is simple and reliable for structure to complete the closing of backplate, airplane wheel backplate can be quickly opened and closed, effectively improves the maintenance of aircraft
Property.
Brief description of the drawings
Fig. 1 is the installation front view of presently preferred embodiments of the present invention.
Fig. 2 is the installation top view of presently preferred embodiments of the present invention.
Fig. 3 is the connection lock-out state schematic diagram of presently preferred embodiments of the present invention.
Fig. 4 is the unlocking condition schematic diagram of presently preferred embodiments of the present invention.
Fig. 5 be in Fig. 3 A to sectional view.
Fig. 6 is sectional view at B-B in Fig. 5.
Fig. 7 is sectional view at C-C in Fig. 5.
Fig. 8~9 are the entity connection lock-out state schematic diagrames of presently preferred embodiments of the present invention.
Figure 10 is the entity unlocking condition schematic diagram of presently preferred embodiments of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Join breaking mechanism referring to a kind of Fig. 1~Figure 10 aircraft backplate, including backplate retractable actuating cylinder 1, backplate 2, first connect
First 3, second joint 4, backplate connection breaking mechanism 5 include the 3rd joint 6, the rocking arm 7 with latch hook, shell 8, the first spring 9, backplate and covered
Skin 10, the rocking arm 11 of key with pressure, second spring 12, jointing 13, limiting bush 14, the first bolt 15, the first pad 16,
Two bolts 17, the second pad 18, nine class precision bushings 19, split pin 20, nut 21, cornual plate 22 and covering connection sheet 23, backplate
Retractable actuating cylinder 1 joins breaking mechanism 5 by backplate with backplate 2 and is connected, and the first joint 3 and the second joint 4 are provided with backplate 2；Shield
In plate connection breaking mechanism 5, the one end of the 3rd joint 6 is arranged on the shaft axis of backplate 2, and the other end is received by jointing 13 and backplate
Put the piston rod connection of pressurized strut 1, during the piston rod of backplate retractable actuating cylinder 1 stretches out, the first joint 3, the second joint
4th, point all on the 3rd joint 6 and this three joints rotates around the axis of backplate 2；Limiting bush 14 is pacified by the first bolt 15
In the 3rd joint 6, the rocking arm 7 with latch hook is fixed on shell 8 by the second bolt 17, the first pad 16, the second pad 18
On, nut 21 is arranged on the second bolt 17 with split pin 20, for locking；In order that the rocking arm 7 with latch hook rotate flexibly,
Nine class precision bushings 19 are installed between the bolt 17 of rocking arm 7 and second with latch hook；The one end of second spring 12 and shaking with latch hook
Arm 7 is connected, and the other end is connected with cornual plate 22, and the one end of the first spring 9 is connected with the rocking arm 11 of key with pressure, and the other end connects with cornual plate 22
Connect, cornual plate 22 is fixed on shell by rivet；When backplate connection breaking mechanism 5 is in connection lock-out state, the rocking arm of key with pressure
Pressure key mapping on 11 presses key termination and backplate covering 10 in the through hole between covering connection sheet 23 and backplate covering 10
Flush with outer surface, covering connection sheet 23 rivet with backplate covering 10；
When backplate connection breaking mechanism 5 is in connection lock-out state, the rocking arm 7 with latch hook connects backplate 2 and backplate retractable actuating cylinder 1
Together, backplate 2 carries out folding and unfolding in the presence of backplate retractable actuating cylinder 1, because the rocking arm 7 with latch hook acts on, backplate folding and unfolding
The folding and unfolding movement locus of pressurized strut 1 determines, it is necessary to when opening backplate 2, the pressure of the rocking arm 11 of key with pressure need to be only pressed outside backplate 2
Key, to release constraint of the stopper slot on the rocking arm 11 of key with pressure to the rocking arm 7 with latch hook, the rocking arm 7 with latch hook is in the second bullet
Limiting bush 14, and then the connection of the joint 6 of rocking arm 7 and the 3rd of disconnecting strip latch hook are automatically disengaged in the presence of spring 12, that is, is disconnected
Connection between backplate 2 and backplate retractable actuating cylinder 1；
For backplate connection breaking mechanism 5 when being in unlocking condition, backplate 2 is free to rotate, when needing to backplate 2 and backplate retractable actuating cylinder
1 when being attached, and pushes backplate 2 to closed position manually, the latch hook on the rocking arm 7 with latch hook with it is spacing on the 3rd joint 6
After bushing 14 contacts, rotated in the presence of limiting bush 14, the first spring 9 drives the rocking arm 11 of key with pressure to rotate, until band
The rocking arm 7 of latch hook is pinned by the stopper slot on the rocking arm 11 of key with pressure, and now, backplate 2 is connected with backplate retractable actuating cylinder 1, shield
Plate 2 can carry out folding and unfolding in the presence of backplate retractable actuating cylinder 1.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of aircraft backplate joins breaking mechanism, including the 3rd joint, the rocking arm with latch hook, shell, the first spring, key with pressure shake
Arm, second spring, limiting bush, cornual plate, covering connection sheet and backplate covering, it is characterised in that the 3rd joint one end is arranged on
On the shaft axis of backplate, the other end is connected with the piston rod of backplate retractable actuating cylinder, and limiting bush is arranged in the 3rd joint, band
The rocking arm of latch hook is fixed on shell；Second spring one end is connected with the rocking arm with latch hook, and the other end is connected with cornual plate, the first bullet
Spring one end is connected with the rocking arm of key with pressure, and the other end is connected with cornual plate, and cornual plate is fixed on shell；Covering connection sheet is covered with backplate
Skin rivets, and is provided between covering connection sheet and backplate covering and is used for when backplate connection breaking mechanism is in connection lock-out state
The through hole of rocking arm for pressing key is placed, while presses the termination of key and the flush with outer surface of backplate covering, is provided with the rocking arm of key with pressure
For entering the stopper slot of row constraint to the rocking arm with latch hook.
A kind of 2. aircraft backplate connection breaking mechanism according to claim 1, it is characterised in that backplate connection breaking mechanism one end connection
Backplate retractable actuating cylinder, other end connection backplate, and the first joint and the second joint are provided with backplate.
3. a kind of aircraft backplate connection breaking mechanism according to claim 1, it is characterised in that the 3rd joint passes through jointing
It is connected with the piston rod of backplate retractable actuating cylinder.
4. a kind of aircraft backplate connection breaking mechanism according to claim 1, it is characterised in that the rocking arm with latch hook passes through second
Bolt, the first pad, the second pad are fixed on shell.
5. a kind of aircraft backplate connection breaking mechanism according to claim 4, it is characterised in that be provided with and be used on the second bolt
Locking nut and split pin.
6. a kind of aircraft backplate connection breaking mechanism according to claim 4, it is characterised in that in the rocking arm with latch hook and second
Nine class precision bushings are installed between bolt.
7. a kind of aircraft backplate connection breaking mechanism according to claim 1, it is characterised in that cornual plate is fixed on outer by rivet
On shell.
8. a kind of aircraft backplate connection breaking mechanism according to any one of claim 1~7, it is characterised in that backplate joins off line
When structure is in connection lock-out state, the rocking arm with latch hook links together backplate and backplate retractable actuating cylinder, and backplate is in backplate
Folding and unfolding is carried out in the presence of retractable actuating cylinder, due to the rocking arm effect with latch hook, the folding and unfolding movement locus of backplate retractable actuating cylinder
It is determined that, it is necessary to when opening backplate, the pressure key of the rocking arm of key with pressure is pressed outside backplate, it is spacing on the rocking arm of key with pressure to release
Constraint of the groove to the rocking arm with latch hook, the rocking arm with latch hook automatically disengage limiting bush in the presence of second spring, and then disconnected
The connection of the rocking arm with latch hook and the 3rd joint is opened, that is, disconnects the connection between backplate and backplate retractable actuating cylinder；
When be in unlocking condition, backplate freely rotates backplate connection breaking mechanism, when needing that backplate and backplate retractable actuating cylinder are carried out
During connection, push backplate to closed position manually, the latch hook on the rocking arm with latch hook contacts with the limiting bush on the 3rd joint
Afterwards, rotated in the presence of limiting bush, the first spring drives the rocking arm of key with pressure to rotate, until the rocking arm with latch hook is with pressure
Stopper slot on the rocking arm of key is pinned, and now, backplate is connected with backplate retractable actuating cylinder, work of the backplate in backplate retractable actuating cylinder
Folding and unfolding is carried out under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569512.3A CN107380406B (en) | 2017-07-13 | 2017-07-13 | Aircraft backplate allies oneself with disconnected mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569512.3A CN107380406B (en) | 2017-07-13 | 2017-07-13 | Aircraft backplate allies oneself with disconnected mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107380406A true CN107380406A (en) | 2017-11-24 |
| CN107380406B CN107380406B (en) | 2020-04-28 |
Family
ID=60339651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710569512.3A Active CN107380406B (en) | 2017-07-13 | 2017-07-13 | Aircraft backplate allies oneself with disconnected mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107380406B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7188804B1 (en) * | 2004-06-25 | 2007-03-13 | Boetto Steven C | Float retractable landing gear |
| CN104176244A (en) * | 2014-09-17 | 2014-12-03 | 江西洪都航空工业集团有限责任公司 | Linked landing gear cabin door folding and unfolding device |
| CN204210730U (en) * | 2014-09-18 | 2015-03-18 | 中国商用飞机有限责任公司 | Landing gear uplock mechanism |
| CN105584628A (en) * | 2015-10-27 | 2016-05-18 | 成都飞机工业（集团）有限责任公司 | Guard plate and landing gear linkage retracting device |
| CN106218866A (en) * | 2016-08-19 | 2016-12-14 | 中航飞机起落架有限责任公司 | A kind of backplate follower of undercarriage |
-
2017
- 2017-07-13 CN CN201710569512.3A patent/CN107380406B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7188804B1 (en) * | 2004-06-25 | 2007-03-13 | Boetto Steven C | Float retractable landing gear |
| CN104176244A (en) * | 2014-09-17 | 2014-12-03 | 江西洪都航空工业集团有限责任公司 | Linked landing gear cabin door folding and unfolding device |
| CN204210730U (en) * | 2014-09-18 | 2015-03-18 | 中国商用飞机有限责任公司 | Landing gear uplock mechanism |
| CN105584628A (en) * | 2015-10-27 | 2016-05-18 | 成都飞机工业（集团）有限责任公司 | Guard plate and landing gear linkage retracting device |
| CN106218866A (en) * | 2016-08-19 | 2016-12-14 | 中航飞机起落架有限责任公司 | A kind of backplate follower of undercarriage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107380406B (en) | 2020-04-28 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Nanchang high tech Industrial Development Zone, Jiangxi Province Patentee after: JIANGXI HONGDU AVIATION INDUSTRY GROUP Co.,Ltd. Address before: 330000 Jiangxi city in Nanchang Province, the new bridge box 460 box 5001 Patentee before: JIANGXI HONGDU AVIATION INDUSTRY GROUP Co.,Ltd. |