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Trolley type landing gear and aircraft

A landing gear, trolley-type technology, applied in the field of aircraft, can solve the problems of limited turning moment and complex structure, and achieve the effects of reducing turning moment, reliable take-off and landing, and reducing the number of

Active Publication Date: 2021-11-05
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structural form is relatively complicated, and requires a large driving force to adjust the angle of the steering wheel, and the turning moment that can be reduced is also very limited

Method used

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  • Trolley type landing gear and aircraft
  • Trolley type landing gear and aircraft
  • Trolley type landing gear and aircraft

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Embodiment Construction

[0035] It should be understood that the invention may employ various alternative orientations and step sequences unless clearly indicated to the contrary. It should also be understood that the specific devices shown in the drawings and described in the specification are merely exemplary embodiments of the inventive concepts disclosed and defined herein. Thus, unless expressly stated otherwise, the various disclosed embodiments are not to be considered limiting as to specific paths of motion, directions or other physical characteristics.

[0036] As used herein, the term "axial" and variations thereof refer to a direction extending generally along an axis of symmetry, a central axis, or an elongate direction of a particular component or system. For example, an axially extending feature of a component may be a feature extending generally in a direction parallel to the axis of symmetry or elongation of the component. Similarly, the term "radial" and variations thereof as used he...

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Abstract

The invention relates to a trolley type landing gear which comprises a supporting column and a frame attached to the supporting column, and an airplane wheel assembly attached to the frame, the airplane wheel assembly comprises at least two sets of wheels and wheel shafts, at least one set of wheels and axles in the wheel assembly are actively movable upward relative to the ground by means of an actuation mechanism attached to the at least one set of wheels and axles to reduce the number of wheels that contact the ground of the trolley landing gear. By means of the structure, the number of wheels, making contact with the ground, of the trolley type landing gear can be changed so that when the aircraft makes a turn, torque generated by turning is reduced, and the aircraft is better supported to make the turn; when the aircraft takes off and lands, all the wheels are grounded, so that all the wheels can be used for sliding, braking and buffering to meet the take-off and landing performance of the aircraft. The invention also relates to an aircraft comprising the trolley type landing gear.

Description

technical field [0001] The invention relates to a trolley-type landing gear, which belongs to a mechanism form of multi-wheel arrangement of the aircraft landing gear, which is used for take-off, landing and ground taxiing of the aircraft, and can selectively reduce the moment of the aircraft when turning. [0002] The invention also relates to an aircraft comprising such a trolley landing gear. Background technique [0003] At present, in aircrafts such as civil airliners, many large models (such as Boeing 777, Airbus A350-1000, etc.) have adopted trolley landing gear (for example, 6-wheel trolley landing gear) in order to carry heavy aircraft Take off, land and roll. The trolley landing gear improves the survivability of the landing gear, reduces the wear of the tires and improves the braking efficiency, and under the same load, the trolley landing gear is lighter and smaller than the single-wheel or double-wheel landing gear . [0004] However, the flexibility of the t...

Claims

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Application Information

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IPC IPC(8): B64C25/34B64C25/36B64C25/50
CPCB64C25/34B64C25/36B64C25/50Y02T50/80
Inventor 李冰陆伟铭白璐孟庆堂杨弘杨晓
Owner COMAC