新型静压支承结构液压缸力学性能分析与实验  

Analysis and Experiment of Mechanical Properties of the Hydraulic Cylinderwith New Hydrostatic Bearing

作　　者：史文杰[1] 段恩业 李冬明 邱永宁 朱伟[1] SHI Wenjie;DUAN Enye;LI Dongming;QIU Yongning;ZHU Wei(School of Mechanical Engineering and Rail Transit,Changzhou University,Changzhou Jiangsu 213164,China;Jiangsu Hengli Hydraulic Co.,Ltd.,Changzhou Jiangsu 213100,China)

机构地区：[1]常州大学机械与轨道交通学院,江苏常州213164 [2]江苏恒立液压股份有限公司,江苏常州213100

出　　处：《机床与液压》2023年第20期93-99,共7页Machine Tool & Hydraulics

基　　金：国家重点研发计划(2020YFB2009700)。

摘　　要：传统液压缸多采用导向环和密封圈组合密封的方式,普遍存在内耗高、响应速度慢、抗偏载力差等问题。在静压支承理论的基础上,提出一种新型椭圆形静压支承结构液压缸及其设计方法。采用理论计算和模拟仿真相结合的方式,对比分析了传统型、矩形静压腔和椭圆形静压腔液压缸的抗偏载力、摩擦力的大小及其主要影响因素。仿真结果表明:静压支承式液压缸的抗偏载能力和摩擦力性能均明显优于传统结构液压缸,且椭圆形静压腔结构具有明显优势。最后,设计实验测试平台,通过实验验证了上述计算模型和仿真模拟的正确性。Due to the combination of guide ring and seal ring,the traditional hydraulic cylinder has many problems,such as high internal friction,slow response speed,poor anti eccentric load force and so on.Based on the theory of hydrostatic bearing,a new type of elliptical hydrostatic bearing hydraulic cylinder and its design method were proposed.By means of theoretical calculation and simulation,the anti-eccentric load force and friction force of traditional,rectangular and elliptical hydrostatic chambers hydraulic cylinders were compared and analyzed,respectively.The simulation results show that the anti-eccentric load capacity and friction performance of the hydrostatic bearing hydraulic cylinder are significantly better than those of traditional structural hydraulic cylinders;and the elliptical hydrostatic chamber structure has obvious advantages.The experimental test platform was designed,the above calculation model and simulation were verified through experiments.

关 键 词：液压缸 静压支承 抗偏载力 摩擦力 

分 类 号：TH137.51[机械工程—机械制造及自动化]