【摘要】 为了减小齿轮泵的流量脉动系数,研究了多极复合齿轮泵.采用啮合点位移分析法对多极复合齿轮泵的流量特性进行了分析,推导了该泵的瞬态流量表达式和流量脉动系数通用公式.分析结果表明,当中心轮齿数z1=kN+1,且k为奇数时,多极复合齿轮泵的流量脉动系数最小,流量特性最好.以三极复合齿轮泵为例,对其瞬态流量进行了仿真.仿真结果验证了流量脉动系数通用公式的正确性.更多还原

【Abstract】 To minish the pulsation coefficient of flow rate of a gear pump,a multi-compound gear pump is studied.By the analysis method of displacement of mesh point,the flow charateristic of multi-compound gear pump is analyzed,and that expression of transient flow rate and general formula of pulsation coefficient of flow rate are deduced.The analysis result shows that the pulsation coefficient of flow rate is minimal and the flow charateristic is the best when z1=kN+1(k is an odd number).Taking an example from three-compound gear pump,its transient flow rate is simulated,which shows that the general formula of pulsation coefficient of flow rate is right.更多还原