多齿轮变量齿轮泵接触力理论与仿真分析  

Theory and Simulation Analysis of Multi-variable Gear Pump Contact Force

作　　者：卢淑群[1] 

机构地区：[1]滁州学院机械与电子工程学院,安徽滁州239000

出　　处：《液压与气动》2014年第2期101-104,共4页Chinese Hydraulics & Pneumatics

基　　金：国家自然科学基金资助项目(51175005)

摘　　要：针对普通齿轮泵存在振动、噪声及变排量等问题,创新性地提出一种新型结构多齿轮变量齿轮泵。基于Hertz静力弹性接触理论对其轮齿接触力进行了理论分析,运用虚拟样机技术对两种齿轮泵轮齿啮合运动进行了动态仿真分析及比较。结果表明,新型结构多齿轮变量齿轮泵的轮齿接触力及其脉动值较普通齿轮泵要小,并且具有错开从动轮接触力同时到达幅值的特性,表明所设计的新型结构多齿轮变量齿轮泵有效、可行。Focusing on the vibration,the noise and the variable displacement of the ordinary gear pump,a new structure named multi-gear variable gear pump is innovatively proposed.The tooth contact force is analyzed based on the Hertz static elastic contact theory.The dynamic simulation and the comparison for the tooth meshing movement of two gear pumps are presented by the virtual prototyping technology analysis.The results show that：the tooth contact force of the new variable pump and its pulsation are smaller than that of the conventional pump.And it can prevent the contact forces from reaching amplitudes simultaneously,which proves that the new structure of the multi-gear variable gear pump is effective and feasible.

关 键 词：多齿轮变量齿轮泵 虚拟样机技术 啮合运动 接触力 

分 类 号：TH137[机械工程—机械制造及自动化] TH132.4