Aircraft landing gear put-down position locking device
A technology of aircraft landing gear and locking device, which is applied to the chassis and other directions, can solve the problems of limited installation space, large load bearing, and the locking mechanism cannot have a simple structure, and achieves the effect of compact and ingenious mechanism and reduced weight.
Inactive Publication Date: 2021-04-13
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology
[0005] The purpose of the present invention is to provide a locking device for the lowered position of the aircraft landing gear to overcome the problems that the existing locking mechanism cannot have both simple structure, limited installation space and heavy load
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[0023]Such asFigure 1 to 3As shown, the present invention provides a aircraft from the landing gear offset position locking device, including oblique pillars 1, rocker arm 5, and buffer 7, where:
[0024]The front end of the inclined pillar 1 is provided with an inclination segment. The rear end of the oblique strut 1 is fixed to the landing gear bracket by the sleeve, and the inclination segment of the front end of the oblique strut 1 is fixed to the landing arm; the upper surface of the inclined pillar 1 The upper own inclination section is opened in the direction of the rear end of the oblique pillar 1; the connecting shaft connected to the branches arm and the oblique pillar 1 is located inside the inclination segment, not only easy to connect to the landing rack arm but also And it is conducive to the transfer of ground loads to the fuselage.
[0025]The rocker arm 5 is disposed in the mounting slot, the front end of the rocker arm 5, the rear end sets a pair of first fork 2 and the ...
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The invention discloses an aircraft landing gear put-down position locking device which comprises an inclined strut, an inclined section is arranged at the front end of the inclined strut, the rear end of the inclined strut is fixed to a landing gear support through a sleeve, and the inclined section at the front end of the inclined strut is fixedly connected with a landing gear supporting arm. A mounting groove is formed in the upper surface of the inclined strut in the direction from the inclined section to the rear end of the inclined strut; and a rocker arm, a locking mechanism and a spring reset mechanism are arranged in the mounting groove. An undercarriage bearing structural part is selected as a supporting rod and a latch hook functional part of the put-down position locking mechanism, and the undercarriage put-down position locking device is successfully arranged in an extremely narrow space. The locking mechanism of the put-down position locking mechanism does not need to bear large ground loads at the put-down position, and the weight of the mechanism is greatly reduced. The reset spring has dual functions, and spring loads are beneficial to movement of the undercarriage in the folding and unfolding processes; and the connecting point of a retracting and releasing actuator cylinder and a rocker arm is selected, so that a mechanism dead point set by the releasing position locking mechanism is avoided.
Description
Technical field[0001]The present invention relates to the field of aircraft structural design, and more particularly to aircraft landing gear offset position locking device.Background technique[0002]The function of the aircraft landing gear down the position locking device is to secure the landing gear strut to the lower position, and the down-down position locking mechanism currently is divided into independent lock hooks and struts.[0003]The independent lock hook-type latching principle is the lock ring on the mushroom strut, moving along the lower lock-hook type surface to the lower lock hook U-shaped groove, and the lock ring is limited to the lock hook groove, guarantee The plane of the plane is fixed in place. The struts type locking principle is to support the foldable struts of the body or the landing gear structure, and the two components of the foldable struts have a negative deflection, in the mechanical lock Under the action, the foldable strut remains in the landing gea...
Claims
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IPC IPC(8): B64C25/26
CPCB64C25/26
Inventor 李永洁张剑剑张立军陶小将
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA