A Multi-Blade Cycloidal Propeller Using Control Shaft Plane Position Decoupling Mechanism

Abstract

The invention discloses a multi-blade cycloidal propeller adopting a control shaft plane position decoupling mechanism, comprising a base, a gear set mechanism, a linear drive mechanism and a guide rod slider mechanism; The blades are symmetrically arranged in the center; the guide rod slider mechanism includes a guide rod connected to each blade, and each guide rod is covered with a slider sliding along it, each slider is hinged in turn along the height direction, and the connecting line Form a control shaft that is eccentrically set relative to the main shaft; the fixed end of the linear drive mechanism is provided with a hinge point that rotates around the main shaft, and the movable end is hinged with the slider in the guide rod slider mechanism at the position of the control shaft to adjust the relative position of the control shaft. The radial position of the main shaft; the gear set mechanism is connected with the linear drive mechanism for adjusting the circumferential position of the control shaft relative to the main shaft. The invention can arbitrarily change the position of the control shaft of the cycloidal propeller, and accurately realizes the motion mechanism of the cycloidal propeller.

Description

technical field [0001] The invention relates to the technical field of thruster devices, in particular to a multi-blade cycloidal thruster which adopts a decoupling mechanism for control shaft plane positions. Background technique [0002] Underwater robots with marine survey, seabed reconnaissance, underwater salvage and near-water auxiliary operations have become important tools for people to explore and develop the ocean. In order to adapt to different underwater environments, underwater robots should at least have the ability to hover, move forward, retreat, ascend, dive and turn. At present, propellers are widely used for underwater robots, but propellers generally have problems such as low propulsion efficiency and insufficient maneuverability at low speeds. Compared with the propeller, since the cycloidal propeller can generate the propulsion force that can be adjusted in any direction within the range of 360° in the plane, the underwater robot using the cycloidal pr...

AI Technical Summary

Problems solved by technology

[0003] However, at present, the internal structure of the cycloidal propeller includes six-link type, crank slider type and steering gear type. The six-link type needs to determine the length of each connecting rod. It is necessary to configure a steering gear for each blade to control the swing, and these schemes can only approximate the motion law of the cycloid propeller, which affects the propulsion performance of the propeller to a certain extent

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