回转接头耐久性试验机液压加载系统设计及温升分析  

Modification Design and Temperature Rise Analysis of Hydraulic Loading System of Rotary Joint Durability Testing Machine

作　　者：王立杰[1] 李明杰 岳侗 陈慧娟 WANG Lijie;LI Mingjie;YUE Tong;CHEN Huijuan(School of Mechanical and Electronic Engineering,Nanjing Forestry University,Nanjing Jiangsu 210037,China)

机构地区：[1]南京林业大学机械电子工程学院,江苏南京210037

出　　处：《机床与液压》2023年第24期79-83,共5页Machine Tool & Hydraulics

基　　金：江苏省“六大人才高峰”第七批高层次人才项目(013040024)。

摘　　要：针对现有耐久性试验机液压加载系统加载时存在系统温升过高、微小内泄漏检测不够准确的问题,对回转接头耐久性试验机液压加载系统进行设计,增加了保压卸荷功能,对高压回路的增压器进行了结构设计。利用AMESim软件建立完整液压加载系统热液压仿真模型,在没有现成模型的情况下构建了回转接头和增压器的仿真模型,并完成了系统温升仿真,比较系统不同工作模式下油液温度的变化情况。结果表明:有卸荷运行情况下,系统油液温度与无卸荷运行相比下降5℃,为液压加载系统设计及预测系统温升提供了参考。Aiming at the problem that the temperature rise of the existing hydraulic loading system of the durability testing machine is too high and the micro internal leakage detection is not accurate enough,the hydraulic loading system of the rotary joint durability testing machine was designed,the function of pressure retaining and unloading was added,and the structure of the high pressure circuit supercharger was designed in detail.The thermal hydraulic simulation model of the complete hydraulic loading system was established by AMESim software,in the absence of a ready-made model,the simulation model of the rotary joint and the supercharger was constructed,and the system temperature rise simulation was completed.The changes of oil temperature under different working modes of the system were compared.The results show that the system oil temperature with unloading operation is 5℃ lower than that without unloading operation,which provides a reference for the design of hydraulic loading system and the prediction of system temperature rise.

关 键 词：回转接头 液压加载 增压器 AMESIM 温升 分析 

分 类 号：TH137[机械工程—机械制造及自动化]