双作用双定子凸轮转子叶片泵的理论分析与研究

发布时间：2018-02-16 13:33

本文关键词： 双定子凸轮转子泵瞬时流量过渡曲线瞬时扭矩　出处：《燕山大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着国内外液压传动技术的应用越来越广泛，液压设备和元件的发展非常迅速。本文在回顾了凸轮转子叶片泵的发展和研究现状的基础上，设计了一种新型原理的液压泵。该泵由一个转子对应两个定子构成，实现了在一个壳体内多个泵同步工作。并成功的将双定子泵的理论应用到凸轮转子叶片泵中，经研究形成了双作用双定子凸轮转子泵。首先，本文对该泵的结构和工作原理进行了详细介绍，说明了凸轮转子过渡曲线以及合理几何参数的选取和偶合叶片的设计，对泵的瞬时流量进行了分析。研究了该泵在八种不同的连接方式下产生的理想瞬时流量叠加。以外泵为例，论述了该泵理论流量的两种算法，并且推导了泵的流量不均匀系数。通过三维软件SolidWorks对该泵进行了三维建模。其次，阐述了过渡曲线的确定原则，分析出该泵瞬时流量均匀的条件，考察几种过渡曲线是否满足瞬时流量均匀。考虑叶片厚度时，通过数学的微积分法得出，，由于叶片伸缩而产生的瞬时流量均匀的条件，再对几种过渡曲线逐一考察。通过对几种过渡曲线求导数，得出分别何时满足弹簧的二次变形量为零。研究了几种过渡曲线的径向加速度变化情况。然后，分析了该泵的噪声与控制。对叶片进行受力分析，得出了当泵建压后最佳液压顶紧力的大小。研究了该泵的瞬时功率和泵轴的瞬时扭矩变化，论述了当泵的叶片设计成“偶合对”时瞬时扭矩的叠加，泵轴受到最大瞬时扭矩时所处在的位置，利用ANSYS软件对此状态进行静力学仿真。最后，通过对泵的样机进行实验研究，为以后更好的设计双定子泵提供了铺垫。
[Abstract]:With the application of hydraulic transmission technology at home and abroad , the development of hydraulic equipment and components is very rapid . Based on the review of the development and research situation of cam rotor vane pump , a novel principle hydraulic pump is designed . Firstly , the structure and working principle of the pump are introduced in detail , the transition curve of the cam rotor and the design of the coupling blade are described . The instantaneous flow rate of the pump is analyzed . Secondly , the principle of the transition curve determination is introduced , and the condition of the instantaneous flow rate of the pump is analyzed , and it is concluded that the transient flow is uniform . Then , the noise and control of the pump are analyzed . The force analysis of the blade is carried out . The instantaneous power of the pump and the instantaneous torque change of the pump shaft are obtained . The position of the instantaneous torque when the blade of the pump is designed as the coupling pair is studied , and the position of the pump shaft is subjected to the maximum instantaneous torque , and the static simulation of the state is carried out by ANSYS software . Finally , through the experimental research on the prototype of the pump , it provides the cushion for the better design of the double - stator pump .

【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51

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