A Self-limiting Mechanism for Helicopter Tail Fairing

A technology of fairings and helicopters, which is applied in the direction of rotorcraft, motor vehicles, aircraft parts, etc. It can solve the problems of limited opening methods, low work efficiency, and insufficient safety, and achieves rapid opening/closing, simple structure, and low weight. Effect

Active Publication Date: 2022-03-15
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing helicopter tail drive shaft fairing needs multiple people to operate jointly during daily inspection, which is labor-intensive and has low work efficiency. At the same time, it is limited by the opening method. After the tail drive shaft fairing is opened, it will affect the safety of the fairing itself and other structures of the helicopter. Slightly insufficient

Method used

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  • A Self-limiting Mechanism for Helicopter Tail Fairing
  • A Self-limiting Mechanism for Helicopter Tail Fairing
  • A Self-limiting Mechanism for Helicopter Tail Fairing

Examples

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Embodiment Construction

[0016] The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing, please refer to Figure 1 to Figure 5 .

[0017] The self-limiting mechanism of the present invention includes: an upper support 2, a lower support 1, a connecting rod 3, a limit connecting rod 4, a hoop 5, bolts, nuts, washers and other parts. Among them, the connecting rod 3 is a single fork lug structure, the upper support 2, the lower support 1 and the limit connecting rod 4 are double fork lug structures, and the two sides of the limit connecting rod 4 are designed with circular protrusions corresponding to the inner shape of the clamp. tower.

[0018] When assembling, a movement mechanism is formed by connecting the two supports through the connecting rod 3, the limit connecting rod 4 and the shaft pin 10, and the upper support 2 is connected to the fairing 15 through bolts 12, nuts 14 and washers 13, The lower support 1 is fixed on the...

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Abstract

The invention belongs to the field of helicopter fairing systems, and relates to a self-limiting mechanism for a helicopter tail fairing. The present invention includes an upper support (2), a lower support (1), a connecting rod (3), a limit connecting rod (4) and a hoop (5); wherein the connecting rod (3), the upper support ( 2), the lower support (1) and the limit connecting rod (4) are fork lug structures, and the two sides of the limit connecting rod (4) are designed with circular bosses. The main function of the self-limiting device of the present invention is to fix the fairing through the self-limiting device after the fairing of the tail drive shaft of the helicopter is opened to a certain angle, so as to form a stable structure to protect the fairing of the tail drive shaft and other structures of the helicopter. The invention has the advantages of simple structure, light weight, small space occupation, fast opening / closing, and high safety.

Description

technical field [0001] The invention belongs to the field of helicopter fairing systems, and relates to a self-limiting mechanism for a helicopter tail fairing. Background technique [0002] After searching, there is no similar mechanism on the more mature helicopters in China. There are generally two ways to open the fairings of the tail drive shaft of existing helicopters; one is to unscrew all the quick release locks connected to the tail fairings, directly remove the tail fairings, and place them in a bracket or other safe area; After unscrewing the quick release lock, it rotates around the connecting hinge until it collides with other parts of the helicopter, and rubber pads are arranged in the collision area. The existing helicopter tail drive shaft fairing requires multiple people to operate jointly during daily inspection, which is labor-intensive and has low work efficiency. At the same time, it is limited by the opening method. After the tail drive shaft fairing i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C7/00B64C27/04
CPCB64C7/00B64C27/04
Inventor 徐传宇关雪松郝刚勇刘永胜刘明亮王晓红甘春诚张欢张余
Owner HARBIN
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