Folding hydrofoil device for amphibious vehicle

A folding and hydrofoil technology, which is applied to amphibious vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of members feeling uncomfortable, large vehicle vibration, and reducing the effect of flat panels, and achieve the effect of convenient technology implementation and small waves

Inactive Publication Date: 2010-08-25
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Folding hydrofoil device for amphibious vehicle
  • Folding hydrofoil device for amphibious vehicle
  • Folding hydrofoil device for amphibious vehicle

Examples

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Embodiment Construction

[0018] Combining the structural characteristics of the left and right sides of the amphibious vehicle, the present invention designs a 6-bar mechanism with a degree of freedom of 1, wherein one bar is used as a fixed support by the vehicle body, so there are 5 movable bars (L 1 , L 2 , L 4 , L 5 , L 6 , in the actual mechanism, in order to meet the strength requirements and avoid interference, multiple rods are designed by means of virtual constraints, such as the rod L 1 Realized by 3 long sliders, rod L 4 It is realized by 3 parallel vertical rods, etc., but they can be simplified to a mechanism with 5 movable rods), composed of 2 moving pairs and 5 rotating pairs, according to the calculation formula of the degree of freedom of the mechanism:

[0019] F=n×3-J×2=5×3-7×2=1 (3)

[0020] Among them, n is the number of movable components in the mechanism, and J is the number of plane lower pairs.

[0021] In order to avoid interference between the connecting rod and the tr...

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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 soon as 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 ...

Claims

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Application Information

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IPC IPC(8): B60F3/00
Inventor 李玉良赵薇
Owner ZHEJIANG UNIV
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