关键词: 齿轮泵, 流量脉动, 齿面方程, 弧齿圆柱齿轮

Abstract:

A new gear pump was put forward. Analyzing the tooth surface equation of arch gear, it is demonstrated that two tooth surfaces of arch gears which the circumferential modules are equal can carry out linear contact. The arch gear pump can be composed with a pair of arch gear. On the basis of above,the expressions of instant flow of arch gear pump were deduced,the relationship of the flow with the main parameters of arch gear was demostrated, they indicate that the pulsation of arch gear pump is smaller than that of arch straight teeth gear pump.

Key words: gear pump, pulsation of flow, tooth surface equation, arch cylindrical gear