CN109131829B - A winding and unwinding devices for door ladder unification formula hatch door - Google Patents
A winding and unwinding devices for door ladder unification formula hatch door Download PDFInfo
- Publication number
- CN109131829B CN109131829B CN201811031623.XA CN201811031623A CN109131829B CN 109131829 B CN109131829 B CN 109131829B CN 201811031623 A CN201811031623 A CN 201811031623A CN 109131829 B CN109131829 B CN 109131829B
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- CN
- China
- Prior art keywords
- door
- assembly
- cabin door
- gear
- integrated cabin
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- 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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- 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
- B64C1/14—Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers
- B64C1/1407—Doors; surrounding frames
- B64C1/1423—Passenger doors
Abstract
The invention belongs to the field of airplane structure design, and particularly relates to a retracting and releasing device for a door-ladder integrated cabin door. At present, a door-ladder integrated cabin door structure is generally adopted on modern small passenger planes and helicopters, and the existing door-ladder integrated cabin door folding and unfolding device is provided with a hydraulic folding and unfolding device, an electric actuation folding and unfolding device and an air spring auxiliary folding and unfolding device. In order to adapt to the design concept of modern airplanes, the door-ladder integrated cabin door retracting device adopts a steel wire rope component, and a cable disc component (4) of the steel wire rope component (2) is driven through a gear set and is provided with a buffer structure. The airplane door ladder integrated cabin door retracting device has the advantages of no need of onboard energy, low maintenance and operation cost, convenience and simplicity in operation, stable performance, high reliability, no pollution, no noise, simple structure, long service life, low manufacturing cost and the like, completely accords with the design concept of modern airplanes, is the first choice of the door ladder integrated cabin door retracting device, and has great economic application value.
Description
Technical Field
The invention belongs to the field of airplane structure design, and particularly relates to a retracting and releasing device for a door-ladder integrated cabin door.
Background
At present, a door-ladder integrated cabin door structure is generally adopted on modern small passenger planes and helicopters, and the existing door-ladder integrated cabin door folding and unfolding device is provided with a hydraulic folding and unfolding device, an electric actuation folding and unfolding device and an air spring auxiliary folding and unfolding device.
The hydraulic retraction device provides hydraulic energy through an airplane hydraulic source to drive the actuating device to open and close the cabin door, the hydraulic actuation of the outer field of the airplane is parked for a long time, the pressure of the hydraulic actuating cylinder is attenuated, and the boarding door falls completely and freely in severe cases, so that the boarding door rotates and the retraction mechanism is damaged.
The electric winding and unwinding device provides electric energy through the airplane power supply to drive the actuating device to open and close the cabin door, and the system is complex and has high failure rate.
The auxiliary retraction device of the gas spring assists an operator to open and close the cabin door through the characteristic of the gas spring, and is greatly influenced by temperature and short in service life.
Disclosure of Invention
In order to adapt to the design concept of modern airplanes, the invention provides the door-ladder integrated cabin door retracting device which saves on-board energy and reduces the maintenance and operation cost.
A retraction device for a door-ladder integrated cabin door is characterized in that the cabin door is connected with one end of a steel wire rope assembly, the other end of the steel wire rope assembly is fixed and wound on a cable disc assembly, a transmission shaft fixed with the cable disc assembly is coaxially connected with a first gear of a gear pair, the first gear is connected with a planetary gear of a planetary reducer, and an intermediate wheel of the planetary reducer is connected with a driving device; the second gear of the gear pair is connected with a torsion bar spring assembly, and the torsion bar spring assembly is connected with the buffer through a rotating arm.
And a pulley assembly is also arranged between the steel wire rope assembly and the cable disc assembly.
And the middle wheel of the planetary reducer is connected with a driving device through a bevel gear steering mechanism.
The driving device is a handle assembly.
And a rotating shaft of the second gear is connected with the movable end of the torsion bar spring assembly through a spline, and the other end of the torsion bar spring assembly is fixed.
The buffer is a hydraulic one-way damper buffer, and the other end of the buffer is connected with the machine body.
Has the advantages that: the airplane door ladder integrated cabin door retracting device has the advantages of no need of onboard energy, low maintenance and operation cost, convenience and simplicity in operation, stable performance, high reliability, no pollution, no noise, simple structure, long service life, low manufacturing cost and the like, completely accords with the design concept of modern airplanes, is the first choice of the door ladder integrated cabin door retracting device, and has great economic application value.
Drawings
Fig. 1 is a schematic view of the door ladder-in-one type hatch retracting device of the present invention.
1. Cabin door, 2. steel wire rope assembly, 3. pulley assembly, 4 cable disc assembly, 5. gear pair, 6. torsion bar spring assembly, 7. rotating arm, 8. buffer, 9. planetary reducer, 10. bevel gear steering mechanism, 11. handle assembly
Detailed Description
When the door is opened, the cabin door 1 rotates to drive the steel wire rope assembly 2 to extend out, the pulley assembly 3, the cable disc assembly 4, the gear pair 5, the planetary reducer 9, the bevel gear steering mechanism 10 and the handle assembly 11 rotate, the torsion bar spring assembly 6 applies resistance in torsion, and the rotating arm 7 rotates to drive the buffer 8 to extend out to apply damping.
When the door is closed, after the handle assembly 11 is meshed with the bevel gear steering mechanism 10, an operator reversely rotates the handle assembly 11 to sequentially drive the bevel gear steering mechanism 10, the planetary reducer 9, the gear pair 5, the cable disc assembly 4 and the pulley assembly 3 to reversely rotate, so that the steel wire rope assembly 2 is recovered to close the door 1, assistance is provided along with the torsional return of the torsion bar spring assembly 6, and the rotating arm 7 rotates to drive the buffer 8 to retract.
Claims (1)
1. The utility model provides a receive and release device that is used for door ladder unification formula hatch door which characterized in that: the cabin door (1) is connected with one end of the steel wire rope component (2), the other end of the steel wire rope component (2) is fixed and wound on the cable disc component (4), a transmission shaft fixed with the cable disc component (4) is coaxially connected with a first gear of the gear pair (5), the first gear is connected with a planet wheel of the planetary reducer (9), and an intermediate wheel of the planetary reducer (9) is connected with the driving device; the second gear of the gear pair (5) is connected with a torsion bar spring assembly (6), and the torsion bar spring assembly (6) is connected with a buffer (8) through a rotating arm (7); a pulley assembly (3) is also arranged between the steel wire rope assembly (2) and the cable disc assembly (4); the middle wheel of the planetary reducer (9) is connected with a driving device through a bevel gear steering mechanism (10); the driving device is a handle assembly (11); the rotating shaft of the second gear is connected with the movable end of the torsion bar spring assembly (6) through a spline, the buffer (8) is fixed at the other end of the torsion bar spring assembly (6) and is a hydraulic one-way damper buffer, and the other end of the torsion bar spring assembly is connected with the machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031623.XA CN109131829B (en) | 2018-09-05 | 2018-09-05 | A winding and unwinding devices for door ladder unification formula hatch door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031623.XA CN109131829B (en) | 2018-09-05 | 2018-09-05 | A winding and unwinding devices for door ladder unification formula hatch door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109131829A CN109131829A (en) | 2019-01-04 |
| CN109131829B true CN109131829B (en) | 2022-03-15 |
Family
ID=64827073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811031623.XA Active CN109131829B (en) | 2018-09-05 | 2018-09-05 | A winding and unwinding devices for door ladder unification formula hatch door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109131829B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110723272B (en) * | 2019-11-12 | 2022-12-13 | 中航电测仪器股份有限公司 | Power-assisted buffering reel device of boarding door |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201694384U (en) * | 2010-02-08 | 2011-01-05 | 哈尔滨飞机工业集团有限责任公司 | Retracting mechanism of aircraft cargo door |
| EP2860337A2 (en) * | 2013-10-14 | 2015-04-15 | IMS Gear GmbH | Powered panel assembly for a motor vehicle |
| EP2878530B1 (en) * | 2013-11-27 | 2019-02-27 | Airbus Operations GmbH | Warning circuitry and warning device for an aircraft |
| CN103603926A (en) * | 2013-12-04 | 2014-02-26 | 中国航空工业第六一八研究所 | Speed reducing device of airplane cabin door opening and closing transmission mechanism |
| US9914544B2 (en) * | 2015-08-18 | 2018-03-13 | Goodrich Corporation | Mechanical aircraft sill height indicator |
| CN106965919B (en) * | 2017-03-30 | 2019-11-15 | 庆安集团有限公司 | A kind of novel cabin door actuator |
| CN107724859B (en) * | 2017-09-30 | 2019-02-12 | 中国航空工业集团公司西安飞机设计研究所 | A kind of ladder unification landing gate two-part curve driving mechanism |
| CN108252608B (en) * | 2017-12-08 | 2019-10-25 | 西安飞机工业（集团）有限责任公司 | A kind of aircraft opening swing-in protection hatch door opening mechanism |
-
2018
- 2018-09-05 CN CN201811031623.XA patent/CN109131829B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109131829A (en) | 2019-01-04 |
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