Landing gear retracting and deploying system and aircraft comprising system
A technology of landing gear and landing gear bay is applied in the field of landing gear backup and release devices, and can solve the problems of increasing the aerodynamic load of the landing gear, the complex structure, the negative influence of the aerodynamic shape of the aircraft, and the like.
Active Publication Date: 2021-11-05
COMAC +1
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- Application Information
AI Technical Summary
Problems solved by technology
For the scheme of landing gear back-up guide rail, there are problems in the design analysis and mechanism layout mentioned above, which makes the landing gear back-up placement have the risk of not working normally
For the scheme of dismantling the landing gear door, its structure is complex, which will increase the aerodynamic load of the landing gear, and will also have a negative impact on the aerodynamic shape of the aircraft
Method used
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[0037] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that what is shown in the drawings is only a preferred embodiment of the present invention, which is not intended to limit the scope of the present invention. Those skilled in the art can make various obvious modifications, variations and equivalent replacements to the present invention on the basis of the embodiments shown in the drawings, all of which fall within the protection scope of the present invention.
[0038] figure 1 Shown is the structure of the landing gear retractable system arranged on the aircraft of the present invention. As shown in the figure, on the door 10 of the landing gear compartment of the aircraft, specifically, on the inner side of the door 10, a landing gear backup and release device 20 is installed.
[0039] The hatch 10 includes a large curvature portion 11 at its lower portion, that is, ...
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The invention provides a landing gear retracting and deploying system which includes a door of a landing gear compartment, and the landing gear retracting and deploying system further includes a landing gear backup deploying device. The landing gear backup deploying device comprises a cabin door guide rail fixedly installed on a cabin door, a cabin door sliding rail slidably connected to the cabin door guide rail and a reset mechanism of the cabin door sliding rail. The cabin door sliding rail can slide back and forth in the extending direction of the cabin door guide rail. Moreover, under the action of the reset mechanism, when the landing gear tires are separated from the cabin door sliding rail, the reset mechanism automatically restores the cabin door sliding rail and keeps the cabin door sliding rail at the initial position, wherein the friction coefficient between the landing gear tires and the cabin door sliding rail is greater than that between the cabin door sliding rail and the cabin door guide rail so that the landing gear tires can slide relative to the cabin door guide rail together with the cabin door sliding rail. The landing gear retracting and deploying system can avoid or reduce the risk of jamming of the landing gear backup deploying device, and is simple in structure and convenient to maintain. The invention further discloses an aircraft comprising the landing gear retracting and deploying system.
Description
technical field [0001] The invention relates to the field of aircraft design, in particular to the improvement of the structure of the retractable system of the landing gear of the aircraft, in particular to a backup and retractable device for the landing gear. Background technique [0002] The landing gear is an important part of the aircraft. It is located in the lower part of the aircraft and supports the movement of the aircraft on the ground when the aircraft takes off, lands and taxis on the ground. If the landing gear of the aircraft cannot be lowered normally, it will affect the flight safety of the aircraft. In order to ensure that the landing gear can be lowered normally, the aircraft needs to have the landing gear back-up function. The "landing gear back-up" refers to the locking of the landing gear when the first power source for retracting the landing gear fails. backup function. For this reason, the landing gear retracting system of the aircraft includes a la...
Claims
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Login to View More IPC IPC(8): B64C25/10B64C25/20
CPCB64C25/10B64C25/20
Inventor 谭临池杨尚新葛东东张恒康吴晓宇沈强
Owner COMAC