为了进行竖直轴潮流发电水轮机的水动力性能模型试验研究,需重点设计该水轮机的叶片调距机构.在分析现有叶片控制机构的设计思路基础上,提出了一种双偏心机构与双曲柄六杆机构相结合的新型竖直轴水轮机调距机构.对该机构进行了运动学分析,应用相关软件对其进行运动仿真,验证了该方案设计的合理性,并分别给出了工作原理和装配图.所建立的运动学模型对进一步开展竖轴水轮机的相关模型试验研究具有一定的参考意义.%To research the hydrodynamic performance of the vertical-axis variable-pitch tidal current turbine, it is necessary to design the blade control mechanism of the turbine. On the basis of analyzing the existing design idea for the blade control mechanism, this paper proposed a new style of a vertical-axis turbine variable-pitch mechanism which combined a double-eccentric mechanism and double-crank six-rod mechanism. A kinematic analysis was carried out of the mechanism and motion simulation was conducted on it with related software, verifying the reasonableness of the design scheme and giving the working principle and assembly drawing. The established kinematic model has a significant reference value for the further development of vertical axis turbine model testing.
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