High-efficiency hydrodynamic machine with magnetic levitation control and variable pitch

Abstract

The invention relates to a magnetic-levitation-control variable-pitch efficient fluid power machine in order to solve the problem in the prior art that the energy conversion efficiency is low. A plurality of pairs of upper and lower cross arms are fixedly outwards mounted at the upper end and on the middle portion of a main vertical shaft correspondingly. An auxiliary vertical shaft is hinged between the outer ends of the upper cross arm and the lower cross arm in each pair circumferentially. Fan blades which can freely pass through the spaces between the main vertical shaft and the upper / lower cross arms are fixedly mounted on the auxiliary vertical shafts. A base is hinged to the lower portion of the main vertical shaft, and a ferric or magnetic ring arc track which surrounds the main vertical shaft is fixedly mounted on the base. The auxiliary vertical shafts stretch downwards out of the lower surfaces of the lower cross arms to form auxiliary vertical shaft lower ends hinged to a connecting-rod transmission mechanism of which the inner end is hinged to a permanent magnet base. An outer permanent magnet which can attract or repel the outer circumferential track surface of the ring arc track in a spaced mode and an inner permanent magnet which can attract or repel the inner circumferential track surface of the ring arc track in a spaced mode are fixedly mounted under the permanent magnet base. The main vertical shaft or the cross arms are matched with an orientation mechanism. During clockwise or anticlockwise rotation of the upper and lower cross arms, the fan blades can be pushed to rotate in the same direction all the time when the wind direction obliquely intersects with the fan blades. The magnetic-levitation-control variable-pitch efficient fluid power machine has the advantages of being capable of operating normally when flow speed of power fluid is low, large in moment of the fan blades, high in energy conversion efficiency and good in power performance.

Description

technical field [0001] The invention relates to a fluid power device, in particular to a high-efficiency fluid power machine controlled by magnetic suspension. Background technique [0002] Existing fluid power devices, such as wind power machines and hydraulic power machines, generally have the problems of low wind speed or low pressure difference or low speed water flow that cannot work and low energy conversion efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects of the difficult prior art, and provide a high-efficiency fluid power machine with magnetic levitation control and variable pitch that can work normally even when the flow rate of the power fluid is low, and has high energy conversion efficiency. [0004] In order to achieve the above-mentioned purpose, the high-efficiency fluid power machine with magnetic levitation control and variable pitch of the present invention includes a main vert...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned defects of the difficult prior art, and provide a high-efficiency fluid power machine with magnetic levitation control and variable pitch that can work normally even when the flow rate of the power fluid is low and has high energy conversion efficiency

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