内啮合齿轮泵组合式月牙板结构优化  

Structural Optimization of Combined Crescent Plate for Internal Gear Pump

作　　者：李诏年 傅连东[1,2] 湛从昌[1,2] LI Zhao-nian;FU Lian-dong;ZHAN Cong-chang(College of Science and Metallurgical Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;Key Laboratory of Metallurgical Equipment and Control,Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学机械自动化学院,湖北武汉430081 [2]武汉科技大学冶金装备及其控制教育部重点实验室,湖北武汉430081

出　　处：《液压气动与密封》2023年第7期17-22,共6页Hydraulics Pneumatics & Seals

基　　金：国家自然科学基金(51975425)。

摘　　要：针对内啮合齿轮泵月牙板受力情况复杂,易发生断裂,且为高压内啮合齿轮泵中容易损伤失效的关键零部件,对组合式月牙板进行受力分析。通过Solidworks软件建模,利用Pumpinx软件进行流场分析,得到在内啮合泵稳定工作状态下月牙板受力情况,并得出齿轮啮合中心距越大,月牙板易弯折面面压力波动越小;第一间隙流场入口角度越大,间隙易弯折面受力越小;第一间隙流场入口升程越小,间隙易弯折面受力越小;当第一间隙流场结构改为U形结构时,间隙易弯折面受力降低4.9%,能有效提高泵的使用寿命,对高压化内啮合齿轮泵月牙板的设计及研究提供参考。In view of the complex stress condition of the internal gear pump crescent plate,which is prone to breakage,and is a key component that is prone to damage and failure in the high-pressure internal gear pump,the force analysis of the combined crescent plate is carried out.Through Solidworks software modeling,using Pumpinx software to analyze the flow field,the force of the crescent plate under the stable working state of the internal meshing pump is obtained,and it is concluded that the larger the gear meshing center distance,the smaller the pressure fluctuation on the surface of the crescent plate;the first clearance The greater the inlet angle of the flow field,the greater the force on the easy-bending surface of the gap;the greater the inlet lift,the greater the force;when the flow field structure of the first gap is changed to a U-shaped structure,the force on the easy-bending surface of the gap decreases.4.9%,which can effectively improve the service life of the pump,and provide a reference for the design and research of the crescent plate of the high-pressure internal gear pump.

关 键 词：内啮合齿轮泵 月牙板 受力分析 结构优化 

分 类 号：TH137.51[机械工程—机械制造及自动化]