Cycloid propeller eccentric circle control mechanism

Abstract

The invention discloses a vertical axis propeller eccentric circle control mechanism. The vertical axis propeller eccentric circle control mechanism is characterized in that a vertical axis propeller rotating shaft is installed in the center of a base; a chassis, an upper end plate and a lower end plate are sleeved respectively with the vertical axis propeller rotating shaft; the upper end plate is connected with the base; the low end plate is connected with the chassis; the upper end plate and the lower end plate are connected through a first connection plate and a second connection plate to form a second revolute joint composed of a part of the upper end plate and a part of the first connection plate, a third revolute joint composed of a part of the lower end plate and a part of the first connection plate, a fourth revolute joint composed of a part of the lower end plate and a part of the second connection plate, and a fifth revolute joint composed of a part of the upper end plate and a part of the second connection plate; and the upper end plate, the lower end plate, the first connection plate, the second connection plate, the second revolute joint, the third revolute joint, the forth revolute joint and the fifth revolute joint compose a parallelogram mechanism. The vertical axis propeller eccentric circle control mechanism can control the position of the parallelogram mechanism through a control rocker arm of the upper end plate and a control rocker arm of the first connection plate to drive orderly the lower end plate and the chassis so that relative positions of the vertical axis propeller rotating shaft and the chassis are changed thus a blade pitch angle can be controlled.

Description

technical field [0001] The invention belongs to the field of thrusters, in particular to an eccentric circle control mechanism. Background technique [0002] Cycloidal propeller, also known as straight-wing propeller, is a propulsion device that can provide instantaneously variable omnidirectional vector thrust. It has the characteristics of high efficiency and fast change of vector thrust. [0003] In the Chinese patent CN85103046A applied by Li Renguo, a cycloid paddle using a cam as a control mechanism is disclosed. The purpose of the invention is to avoid the use of the conventional slider link mechanism, try to reduce the complexity of the system and improve the mechanical efficiency. The control mechanism in this patent consists of a cam chassis on which the blades are mounted. The blade disk drives the blade to revolve around the cam disk. At the same time, two guide wheels are installed on the blade disc, and the guide wheels move inside the cam of the cam disc, s...

AI Technical Summary

Problems solved by technology

[0007] In short, for the existing cycloidal propeller control mechanism, either its structure is huge and complex, and the friction loss of the mechanism is serious, or the response of the mechanism is slow and it is difficult to realize instantaneously variable vector thrust.

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