齿轮泵的瞬时流量及流量脉动的抑制  

Analysis of Instantaneous Flow and Restraint of Pulsation for External Gear Pump

作　　者：张永祥[1] 金健[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《液压与气动》2015年第3期46-49,31,共5页Chinese Hydraulics & Pneumatics

摘　　要：针对齿轮泵瞬时流量的数学建模问题,提出控制面积法,分析转进与转出控制区域面积。讨论卸荷槽对降低齿轮泵流量脉动的影响,通过对齿轮泵流量脉动曲线分析,得出流量脉动和齿轮啮合位置关系,提出采用两对齿轮错相位叠加方法减小流量脉动,并分析如何实现错相位叠加,发现错相位叠加法能够有效减小齿轮泵的流量脉动。In view of the problem of pump instantaneous flow model, a solution of controlling area is proposed. The area of rotating into and rotating out is analyzed. The impact of relief grooves on the flow pulsation is discussed. By analyzing the pump pulsation＇ s curve, we get the relation between pulsation and the meshing point. The interlaced phase superposition gears method to decrease the pulsation is proposed. The significance of reducing the gear pump＇ s flow pulsation is presented.

关 键 词：外啮合齿轮泵 流量脉动 错相位叠加 

分 类 号：TH137[机械工程—机械制造及自动化] TH325