Aircraft landing gear drop-down position self-locking mechanism

An aircraft landing gear and self-locking technology, applied in the field of aircraft landing gear, can solve the problems of extra unlocking and locking, and achieve the effects of reducing weight and storage space, simple in structure and principle, and simplifying the lower-position locking mechanism.

Active Publication Date: 2020-02-07
LANDING GEAR ADVANCED MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the conventional load-bearing lower locks mainly include deflection locks, latch locks and actuator built-in locks, etc., but these lock mechanisms need to cooperate with side struts, landing gear beams, etc. to realize the take-off, landing and taxiing of the landing gear, etc. load during the process, and its unlocking and locking generally require additional drive devices or mechanisms

Method used

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  • Aircraft landing gear drop-down position self-locking mechanism
  • Aircraft landing gear drop-down position self-locking mechanism
  • Aircraft landing gear drop-down position self-locking mechanism

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0030] For the convenience of description, the relative positional relationship of each component, such as: the description of up, down, left, right, etc., is described according to the layout direction of the drawings in the specification, and does not limit the structure of this patent.

[0031] Such as figure 1 - Figure 5 As shown, the self-locking mechanism at the lowered position of the aircraft landing gear of the present invention includes a ball screw pair (including a ball screw 1 and a ball nut 9 ) and a self-locking washer 3 . Wherein, the lower end of the ball screw 1 is installed in the thrust bearing 6 , and the ball nut 9 matched with the ball screw 1 is fixedly connected to the buffer strut 10 of the landing gear. The thrust bearing 6 is assembled on the bearing seat 5, an...

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Abstract

The invention discloses an aircraft landing gear drop-down position self-locking mechanism. The self-locking mechanism comprises a ball screw (1) which forms a ball screw pair and a ball nut (9), wherein the ball nut (9) is fixedly connected to a landing gear buffer strut (10); the lower end of the ball screw is installed in a thrust bearing (6), and the thrust bearing is assembled in a bearing seat (5) connected with a fuselage connecting piece (7); and the bottom of the bearing seat is fixedly provided with a stopping ring (4), the lower end of the ball screw penetrates through the stoppingring and a self-locking gasket (3) and then is installed on a locking nut (2), and the self-locking gasket is installed on the locking nut. The self-locking mechanism can automatically realize vertical bearing and automatic locking of the landing gear lower lock drop-down position, and has good practical value for a lifting landing gear which can save the landing gear space and reduce the landinggear weight.

Description

technical field [0001] The invention relates to an aircraft landing gear, in particular to an aircraft landing gear self-locking mechanism at a lowered position. Background technique [0002] The aircraft landing gear lowered position locking mechanism is mainly used to fix the landing gear strut in the lowered position to prevent the landing gear from being accidentally retracted during landing or when it is under ground load. [0003] With the rapid development of the aircraft industry, people have paid more and more attention to simplifying the retractable system of the landing gear and reducing the weight of the landing gear. At the same time, in order to ensure the safety of the aircraft during landing, ground taxiing, take-off and shutdown, higher requirements are placed on the load-carrying capacity and reliability of the locking mechanism of the lowered position of the landing gear of the aircraft. [0004] At present, the conventional load-bearing lower locks mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/26
CPCB64C25/26Y02T50/40
Inventor 李田囡张威孙继勇周全树傅碧华马驰张宏
Owner LANDING GEAR ADVANCED MFG
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