Propeller telescoping and head tilting device for trans-medium aircraft

Abstract

Disclosed is a propeller telescoping and head tilting device for a trans-medium aircraft, which belongs to the technical field of trans-medium aircrafts. In the propeller telescoping and head tiltingdevice, a rack I of a head telescoping mechanism is engaged with a gear III of a telescoping driving mechanism. A guide rail I is fixedly connected to a head bin shell. A hollow shaft sleeves the middle of a telescopic shaft in the head telescoping mechanism. A rack II is engaged with a gear IV. A guide rail II is fixedly connected to the head bin shell. A base of a motor I is fixedly connected toa support plate. A base of a motor II in the telescoping driving mechanism is fixedly connected to the head bin shell. A bearing II with a seat and a bearing III with a seat are respectively fixedlyconnected to a bearing mounting plate I and the bearing mounting plate II. The inner ends of a tilting shaft I and a tilting shaft II are fixedly connected to the head bin shell. Bases of a bearing IVwith a seat and a bearing V with a seat are fixedly connected to a fuselage shell. A base of a motor III is fixedly connected to the fuselage shell. The propeller telescoping and head tilting devicefor a trans-medium aircraft can realize the extension and contraction of propellers, which ensures good sealing performance and small underwater running resistance of the aircraft, and can realize rapid out-of-water of the aircraft, which greatly shortens the out-of-water time of the aircraft.

Description

technical field [0001] The invention belongs to the technical field of cross-medium aircraft, and in particular relates to a propeller telescopic and head tilting device for a cross-medium aircraft. Background technique [0002] The cross-media aircraft is a new concept sports platform designed by multi-disciplinary integration of aircraft and underwater vehicles. It is a new multi-functional integrated equipment that can fly in the air and dive underwater. The working mode of the aircraft can be divided into air flight mode, water entry mode, underwater sneaking mode and water exit mode, which can be switched among various working modes according to mission requirements. Cross-media unmanned aerial vehicles can be matched with submarines, surface ships and other equipment to perform tasks such as intelligence collection, reconnaissance and surveillance, communication relay, and electronic countermeasures across the sea and air. [0003] The design difficulties of the trans...

AI Technical Summary

Problems solved by technology

[0003] The design difficulties of the cross-media aircraft mainly focus on the three working modes of water entry mode, underwater sneaking mode and water exiting mode. The propellers in the parts will generate impact on the water surface, which will increase the resistance of underwater diving and affect the airtightness of the aircraft underwater. At present, the propeller is generally folded and deformed to reduce the impact of entering water and the resistance of underwater diving. The method does not completely solve the influence of the propeller on the surrounding water flow

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