Device for compensating the difference of height by which a helicopter lands on a non-horizontal ground and the method thereof

Abstract

The invention provides a device for compensating the difference of height by which a helicopter lands on a non-horizontal ground and the method thereof, which aim at addressing the problem that the helicopter lands on the non-horizontal ground. The device comprises three ranging sensors used for testing the pitch angle and spinning angle of the non-horizontal ground, three leg-type landing gears comprising a landing platform fixedly connected with the body of the helicopter and three landing supporting legs fixed on the landing platform and a control device respectively electrically connected with three ranging sensors and three power output devices; power output devices independent of each other are arranged between each landing supporting leg and the landing platform. When the helicopter lands, the measurement results of the ranging sensors are used for calculating the pitch angle and spinning angle of the non-horizontal ground and then controlling the pitch angle and spinning angle of the plane on which three landing ends of three landing supporting legs to be equal to the pitch angle and spinning angle of the non-horizontal ground so that the helicopter can be controlled to land vertically.

Description

technical field [0001] The invention relates to a helicopter, and also to a model helicopter, in particular to the outrigger landing gear of the helicopter and the model helicopter. Background technique [0002] The use of helicopters for airborne landing can transport troops to their destination in an organized manner, saving the time for airborne troops to regroup, so it has been valued by the armies of various countries in recent years. The role of helicopters in disaster relief is also obvious to all, especially after the Wenchuan earthquake, helicopters played a huge role in disaster relief in mountainous areas. Especially under the harsh conditions of steep mountain gorge, destroyed roads, and traffic interruption, helicopters are the only tool for lifesaving. Take the Wenchuan earthquake that shocked the world in 2008 as an example. From the third day after the earthquake, the government and the military dispatched 90 helicopters every day, making thousands of high-i...

AI Technical Summary

Problems solved by technology

[0008] Although the above-mentioned "helicopter non-level ground hydraulic self-adjusting landing gear" can achieve certain effects, it also has certain limitations. First, this invention only solves the problem of landing when the helicopter has a slope in the front and rear directions. Therefore, when the helicopter lands, it is necessary to ensure that the heights in the left and right directions are consistent. If the driver makes a wrong judgment, a major accident will be caused; The landing direction is limited; on the other hand, using this invention, the falling speed must be reduced as much as possible at the moment when the front legs land, so that the rear legs have enough time to stretch out. It is very difficult, and if you are not careful, accidents will happen, which is contrary to the purpose of its invention

[0009] It can be seen that the existing landing gear cannot fully meet the needs of landing on slopes, and it needs to be improved by those skilled in the art

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