Folding hydrofoil device for amphibious vehicle

Abstract

The invention discloses a folding hydrofoil device for an amphibious vehicle. The hydrofoil device is added on both sides of a crawler-type amphibious vehicle body. The device can be simplified into a six-bar linkage with one degree of freedom. When the amphibious vehicle sails in water, the hydrofoil device unfolds under the driving of a hydraulic cylinder, a flat connected on a folding mechanism is used as a hydrofoil to enlarge the upstream area when the amphibious vehicle sails in water, improve the born lifting power of the amphibious vehicle so as to raise the amphibious vehicle as soonas possible, thereby indirect realizing the purposes of reducing the born resistance of the amphibious vehicle and improving navigational speed. When the amphibious vehicle travels on land, the hydraulic cylinder retracts, the folding mechanism is folded, and the flat is parallel to the side edge of the vehicle body and in a vertical state, thus having the function of protecting amphibious vehicle motion devices. The invention has convenient realization technically, and mainly, the folding mechanism, the hydraulic cylinder and the like are added on both sides of the vehicle body, therefore, the structure is simple, the manufacturing cost is low and the speeding effect is significant.

Description

technical field [0001] The invention relates to a folding hydrofoil device for a crawler-type amphibious vehicle, in particular to a folding hydrofoil device suitable for high-speed driving of an amphibious vehicle on water. Background technique [0002] With the development of modern warfare, landing operations urgently need to quickly transport soldiers from water (generally sea) to land, and overcome coastal obstacles to achieve successful landing. Tracked amphibious vehicles have this function, but due to their large body weight and relatively small body volume, it is difficult to realize fast driving on water. However, with the development of engine technology and water-jet propulsion technology, engines and water-jet propellers that can provide high power and high propulsion have been developed. If combined with a reasonable car body design, it has become an important technology for amphibious vehicles to travel at high speed on water. possible. Drawing lessons from ...

AI Technical Summary

Problems solved by technology

This scheme is more convenient to implement, but it also has relatively large disadvantages

One is that the use of hinges to fix the hydrofoil plate will limit the depth of the hydrofoil plate immersed in the water. When the plate is not underwater, it is in a sliding state at this time. The lift coefficient of the sliding plate is half of the formula (2), which will reduce the plate. The role played; second, high-speed amphibious vehicles are mostly used for sea landing operations and transporting soldiers. When the sea waves are relatively large, because the plate is immersed in the water to a small depth, the vibration of the vehicle is relatively large, and the members feel very uncomfortable.

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