内曲线径向柱塞马达配流面变形泄漏问题研究  

Research on the Leakage Issue of Internal Cam Radial Piston Motor with Deformation of Port Face

作　　者：吴海青 WU Haiqing(Taiyuan Institute of Technology,Department of Mechanical Engineering,Taiyuan,Shanxi 03000)

机构地区：[1]太原工业学院机械工程系,山西太原030000

出　　处：《液压与气动》2025年第4期127-132,共6页Chinese Hydraulics & Pneumatics

摘　　要：针对某型号内曲线径向柱塞马达32 MPa高压下顺时针旋转时泄漏量大的问题开展研究。通过对配流盘进行有限元仿真分析,并基于平行平板径向层流理论,得出32 MPa高压工况下马达顺时针旋转时,配流平面变形量大(0.015 mm)是导致该侧马达泄漏量大(3.5 L/min)的主要原因。通过优化配流盘结构,升级配流盘材料等级,32 MPa高压工况下顺时针旋转,马达配流平面的变形量降至0.0084 mm。试验表明:采用优化后的配流盘,32 MPa高压工况下马达顺时针旋转时泄漏量降至0.55 L/min,较采用原配流盘降低84%。对同类型平面配流柱塞泵马达泄漏量优化具有仿真和理论指导意义。This study focuses on addressing the issue of significant leakage under 32 MPa high pressure during clockwise rotation in a certain type of internal cam radial piston motor.By conducting finite element analysis simulations on the port plate,and based on the theory of radial laminar flow between parallel plates,it was determined that the substantial deformation(0.015 mm)of the port face of port plate at 32 MPa under clockwise rotation is the primary cause of the high leakage(3.5 L/min)on this side.By optimizing the port plate structure and upgrading the material grade,the deformation of the port face under clockwise 32 MPa high-pressure conditions is reduced to 0.0084 mm.Experimental validation revealed that the leakage of motor with optimized port plate reduced to 0.55 L/min at 32 MPa pressure under clockwise rotation,representing an 84%decrease compared to the original design.The results provide simulatio and theoretical guidance for optimizing the leakage in similar types of piston pumps and motors.

关 键 词：内曲线径向柱塞马达 配流面 变形量 泄漏量 

分 类 号：TH137[机械工程—机械制造及自动化]