叶片差速泵偏心圆-非圆齿轮驱动系统的研究  

STUDY OF ECCENTRIC CIRCULAR?NONCIRCULAR GEARS DRIVINGSYSTEM OF DIFFERENTIALVELOCITY VANES PUMP

作　　者：陈明[1] 王广林[1] 刘福利[1] 李笑[1] 李瑰贤[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《机械工程学报》2005年第3期98-101,共4页Journal of Mechanical Engineering

摘　　要：叶片差速泵是一种新型容积泵,它由偏心圆一非圆齿轮驱动系统、泵壳及同轴安装于泵壳内的两个叶轮组成,利用不等速转动的两个叶轮相邻叶片之间周期性张开、闭合来实现密闭容积变化进而完成排液及吸液过程,两叶轮的张合运动由两对偏心圆-非圆齿轮驱动实现。根据偏心圆-非圆齿轮传动的节曲线封闭条件,以及叶片闭合时偏心圆-非圆齿轮的转角关系求出偏心圆-非圆齿轮传动的相对偏心率ε和相对中心距d,进而设计出偏心圆-非圆齿轮的节曲线。通过偏心圆-非圆齿轮的传动分析,确定了叶片的理论最大张开角θmax、理论叶片角γ和配液孔的理论张角β。根据叶片差速泵工作时叶片不干涉条件和配液孔不连通条件确定了实际叶片角γ0和配液孔实际张角β0。The differential velocity vane pump is a new type of positive pump. It's composed of eccentric circular-noncircular gear driving system, hull and two coaxial impeller fixed inside the hull. It forms compartments of varying volume by following the movement of closing and opening between the two neighboring vanes which are driven by two pairs of eccentric circular -noncircular gears to allow liquid in and out. The eccentricity εand relative center distance d have been obtained in the condition of that centrode of noncircular gear is closed and by the relationship between rotated angles of the eccentric circular gear and noncircular gear at the time when the neighboring vanes are closing. Furthermore, the centrode is designed. The theoretic maximal opening angle θmax, theoretic vane angle y and theoretic stretching angle β of the pumping holes are determined by analyzing transmission of eccentric circular noncircular gears. The practical vane angle γ0 and practical stretching angle β0 are determined on conditions that the neighboring pumping holes can not be connected to each other.

关 键 词：容积泵 叶片差速泵 偏心圆齿轮 非圆齿轮 

分 类 号：TH3[机械工程—机械制造及自动化]