一种新型的无级调速装置的开发和研究

Development and Study of a New Type of Stepless Speed Control Device

介绍了液体粘性调速离合器（HVD）的基本工作原理，对HVD整机结构、液压系统进行了设计，对加工出的原型样机进行了试验研究，并基于试验结果对HVD设计过程中应关注的几个关键技术问题进行了探讨。研究表明：依据本文提出的设计结构及液阻、散热、传动介质、弹簧刚度、活塞有效面积等系统参数的合理配置方法，进行开发的400kW级液体粘性调速离舍器，能够实现额定转速1500r／min、速比0、15—1的无级调速，满足火力发电企业的工程实际需要。

The basic working principle of a hydro-viscous drive(HVD)was described,and the overall structure of the HVD along with its hydraulic system,designed.A prototype sample machine was manufactured,which underwent an experimental study.On the basis of the test results,an exploratory study was performed of several key technical issues demanding special attention during the design of the HVD.The study shows that the 400 kW HVD developed on the basis of the design structure proposed by the authors and the rational configuration of such systematic parameters as liquid drag,heat dissipation,transmission medium,spring rigidity and the effective area of the piston etc.has the ability to realize a stepless speed control at a rated speed of 1500 rmin and a speed ratio of 0.15-1,meeting the practical engineering demands of thermal power-generation enterprises.