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Undercarriage retracting and releasing device

A retractable device and landing gear technology, which is applied to the chassis and other directions, can solve the problems of small occupied space and complex positioning of the retractable and retractable points of the landing gear, and achieves the effects of simple structure, convenient transmission, and reduced probability of damage.

Pending Publication Date: 2020-03-24
CHONGQING LANGZHENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a landing gear retractable device with a small footprint in view of the complex positioning of the retractable point of the landing gear in the prior art

Method used

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  • Undercarriage retracting and releasing device
  • Undercarriage retracting and releasing device
  • Undercarriage retracting and releasing device

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Embodiment Construction

[0047] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0048] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0049] Such as Figure 1-Figure 5 , a landing gear retractable device, comprising a tire rod 1, a linkage 2 hinge...

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Abstract

The invention discloses a undercarriage retracting and releasing device. The undercarriage folding and unfolding device comprises a tire rod, a connecting rod mechanism hinged to the tire rod and an electric cylinder connected with the connecting rod mechanism; the connecting rod mechanism comprises a short connecting rod and a long connecting rod which are hinged to a hinge shaft, the other end of the short connecting rod is hinged to the tire rod, and the other end of the long connecting rod is hinged to a fuselage; the electric cylinder is also hinged to the hinge shaft; when the tire rod is put down, the short connecting rod and the long connecting rod are located on the same straight line. The electric cylinder is provided with an automatic locking structure so as to lock and fix thetire rod in the two states that the tire rod is put down and retracted. By the adoption of the technical scheme, the undercarriage retracting and releasing device small in occupied space is obtained.

Description

technical field [0001] The invention relates to a retractable device, in particular to an undercarriage retractable device. Background technique [0002] Landing gear is an accessory device used by an aircraft to support the aircraft while it is taking off, landing, or taxiing on the ground, and for ground movement. With the increase of aircraft speed, in order to reduce the air resistance when the aircraft is flying, the landing gear is designed to be retractable. When the aircraft is flying in the air, the landing gear is retracted inside the body, which can greatly reduce the wind resistance of the aircraft and improve the aerodynamic performance and flight performance of the aircraft. Compared with the fixed landing gear, although the retractable landing gear increases the weight of the aircraft and complicates the structural design of the aircraft, it improves the flight efficiency and is a common configuration of modern aircraft. [0003] Compared with manned aircraf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/24
CPCB64C25/24
Inventor 于今杨昌林蒋大军杜厡林
Owner CHONGQING LANGZHENG TECH
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