双啮合弦线转子泵的设计与受力分析  

Design and Force Analysis of Double-meshing String Rotor Pump

作　　者：邹旻[1,2] 乔永强 任爽 李亮亮 孙定华 ZOU Min;QIAO Yong-qiang;REN Shuang;LI Liang-liang;SUN Ding-hua(School of Mechanical Engineering, Changzhou University, Changzhou, Jiangsu 213164;Jiangsu Key Laboratory of Green Process Equipment, Changzhou University, Changzhou, Jiangsu 213164;Department of Engineering Vehicles, Changzhou Traffic Technician College, Changzhou, Jiangsu 213147)

机构地区：[1]常州大学机械工程学院,江苏常州213164 [2]常州大学江苏省绿色过程装备重点实验室,江苏常州213164 [3]常州交通技师学院工程车辆系,江苏常州213147

出　　处：《液压与气动》2020年第5期184-189,共6页Chinese Hydraulics & Pneumatics

摘　　要：为了降低弦线转子泵的流量脉动率和转子径向力,提出了一种具有两对转子的双啮合弦线转子泵。阐述了双啮合弦线转子泵的工作原理,推导出了瞬时流量表达式,分析了两转子间差动角对双啮合弦线转子泵流量脉动率的影响,得出了当差动角α=π/2z时,双啮合弦线转子泵的流量脉动率为0,消除了流量脉动引起的噪声与振动。同时利用ANSYS对转子受力进行了仿真分析,当差动角α=π/2z时,转子径向力的突变值降低了47.6%,转子弯曲应力降低了21.3%,降低了因转子径向力突变引起的振动。To reduce the flow pulsation rate and rotor radial force of the string rotor pump,a double meshing string rotor pump with two pairs of rotors is proposed.The working principle of the double meshing string rotor pump is explained,and the instantaneous flow expression is derived.By analyzing the influence of differential angle between the two rotors on the flow pulsation rate of the double meshing string rotor pump,it is concluded that the flow pulsation rate of the double meshing string rotor pump is 0 when the differential angleα=π/2z,which eliminates the noise and vibration caused by flow pulsation.Furthermore,ANSYS is used to simulate the rotor stress,when the differential angleα=π/2z,the sudden change of the radial force of the rotor is reduced by 47.6%.The bending stress of the rotor is reduced by 21.3%,which reduces the vibration caused by the sudden change of the radial force of the rotor.

关 键 词：双啮合转子泵 流量脉动率 差动角 径向力 

分 类 号：TH137[机械工程—机械制造及自动化]