基于Fluent的内曲线液压马达滚子副油膜温度特性分析研究  

Analysis and Research on Temperature Characteristic of Oil Film of Roller Pair of Inner Curve Hydraulic Motor Based on Fluent

作　　者：杨国来[1,2] 郭霁贤 张国强 何皓 李晗 YANG Guo-lai;GUO Ji-xian;ZHANG Guo-qiang;HE Hao;LI Han(College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou,Gansu 730050;State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University,Hangzhou,Zhejiang 310027)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050 [2]浙江大学流体动力与机电系统重点实验室,浙江杭州310027

出　　处：《液压与气动》2020年第12期96-101,共6页Chinese Hydraulics & Pneumatics

基　　金：国家重点实验室开放基金(GZKF-201823)。

摘　　要：针对内曲线径向柱塞式液压马达滚子副静压支承油膜温升问题,以降低静压支承油膜温升、提高马达的动态使用特性及使用寿命为目的,对柱塞滚子组件的油槽结构进行初步优化设计,基于L 9(34)正交试验,以温升作为评价指标,利用Fluent软件对9组不同结构参数的模型进行数值计算,并采用极差分析法处理试验结果,得到油槽结构参数的最佳组合。试验结果表明:油槽长度对温升的影响最为显著。在马达正转时优化后的油膜温升下降了16.315 K,在马达反转时优化后的油膜温升下降了13.185 K,达到优化目标,为静压支承油膜结构优化提供了一定的理论支持。It is aimed at the temperature rise problem of the hydrostatic bearing oil film of the roller pair of the inner curve radial plunger hydraulic motor.When the temperature of the hydrostatic bearing oil film is reduced,and the purpose is to improve the dynamic use characteristics and service life of the motor.In this paper,we have made a preliminary optimization design of the oil groove structure of the plunger roller assembly.Taking temperature as the evaluation index,we set up the L 9(34)orthogonal test.We use the Fluent software to perform numerical calculations on 9 models with different structural parameters.The best optimum combination of oil tank structure parameters is obtained by using range analysis method.The test results show that the length of the oil tank has the most obvious effect on temperature.After optimization,the oil film temperature drops 16.315 Kelvins when the motor is rotating forward,and 13.185 Kelvins drops when the motor is rotating backward.We have achieved the goal of optimization and provide theoretical support for the optimization of hydrostatic bearing oil film structure.

关 键 词：滚子副油膜 静压支承 优化研究 油膜温度 正交试验 

分 类 号：TH137[机械工程—机械制造及自动化]