Frame structure for small-sized single-rotor unmanned helicopter with water storage tank mounting rack

Abstract

The frame structure of a small single-rotor unmanned helicopter with a water storage tank mounting frame, including a bottom plate, a support vertical plate, a lower plate of a gearbox, an upper cover of a gearbox, and an elastic clamp; the elastic clamp includes a body and is symmetrically arranged on the body Two arc arms, each arc arm is curled towards the direction of the other arc arm, so that the elastic card seat is in a "C" shape as a whole; the body is provided with bolt holes for it to be installed on the support vertical plate The base plate is located below the lower plate of the gearbox, the lower end of the supporting vertical plate is connected with the base plate, and the upper end is connected with the lower plate of the gearbox. The supporting vertical plate is provided with bolt holes matching the bolt holes on the body, and the upper cover of the gearbox is installed on the The inner cavity of the gearbox case is formed between the upper end of the lower plate of the gearbox and the lower plate of the gearbox. The invention has the advantages of adopting a frame structure, simple structure and easy assembly.

Description

technical field [0001] The invention relates to a frame structure, in particular to the frame structure of a small single-rotor unmanned helicopter with a mounting frame for a water storage tank. Background technique [0002] Unmanned helicopters have the advantages of flexible maneuverability, convenient take-off and landing, hovering in the air, and controllable flight speed. They are widely used in military, agricultural, and civilian fields. [0003] At present, the frame of small single-rotor unmanned helicopter mostly adopts the plate box structure, which has the following disadvantages: 1. The gearbox and the frame are independent of each other, and the gearbox is connected to the frame through connecting parts, resulting in overweight of the unmanned helicopter , increasing the flight load of the unmanned helicopter. 2. The overall rigidity of the plate-type frame is poor, and the overall low-frequency vibration is relatively large during flight, which poses safety ...

AI Technical Summary

Problems solved by technology

[0003] At present, the frame of small single-rotor unmanned helicopter mostly adopts the plate box structure, which has the following disadvantages: 1. The gearbox and the frame are independent of each other, and the gearbox is connected to the frame through connecting parts, resulting in overweight of the unmanned helicopter , increasing the flight load of the unmanned helicopter

2. The overall rigidity of the plate-type frame is poor, and the overall low-frequency vibration is relatively large during flight, which poses safety hazards and interferes with electronic equipment (gyroscope or flight control equipment)

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