Helicopter electric fish fork grating descending assisting system with self-unlocking function

Abstract

The invention discloses a helicopter electric fish fork grating descending assisting system with a self-unlocking function. The helicopter electric fish fork grating descending assisting system comprises a fish fork and a grating. The fish fork comprises an installation board, a gear case connected with a brushless direct current motor is arranged at the lower portion of the installation board, the output end of the gear case is connected with one end of an inner barrel through the cooperation of a ball screw and a screw nut, and the other end of the inner barrel is connected with a locking mechanism provided with a manual unlocking device; an electromagnet assembly used for controlling a locking relieving function of the locking mechanism is arranged between the other end of the inner barrel and the locking mechanism; and the electromagnet assembly and the brushless direct current motor are controlled by a controller. The helicopter electric fish fork grating descending assisting system has the beneficial effects of being simple in structure, small in weight, convenient to maintain, high in speed, free of pollution, low in power consumption and the like, and various problems caused by hydraulic drive are solved.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to a helicopter electric harpoon grille landing aid system with a self-unlocking function. Background technique [0002] The helicopter landing process is a complex process, which is easily affected by external natural conditions, and has the following problems: [0003] (1) The influence of external natural conditions on the helicopter: the influence of the turbulent airflow and sea breeze generated after the helicopter approaches the ship surface, resulting in the instability of the helicopter's state in the air when it lands; [0004] (2) The influence of external natural conditions on the ship: the ship keeps moving under the action of waves and sea wind, etc., resulting in the relative movement of the landing area relative to the helicopter; [0005] (3) The relative displacement between the helicopter and the ship surface after landing: when there is no mooring facility or ...

AI Technical Summary

Problems solved by technology

[0007] At present, most of the shipboard helicopter landing aid systems are harpoon-grid landing aid systems, which are mainly composed of a harpoon fixed on the helicopter and a grid fixed on the ship. The driving method can be divided into hydraulic drive , Pneumatic drive and electric drive. The common domestic driving method is hydraulic drive. The weight of the landing aid system of this driving method is relatively heavy, and it needs to be equipped with a hydraulic auxiliary system, and the maintenance is more complicated due to factors such as oil pollution and leakage.

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