水润滑推力轴承与推力盘综合试验台设计  

Design of test rig for water-lubricated thrust bearing and thrust disc

作　　者：柏宇星 孔繁余[2] 沈勇 汪家琼[2] 顾新艳 BAI Yuxing;KONG Fanyu;SHEN Yong;WANG Jiaqiong;GU Xinyan(School of Automotive&Rail Transit,Nanjing Institute of Technology,Nanjing,Jiangsu 211167,China;National Research Center of Pumps,Jiangsu University,Zhenjiang,Jiangsu 212013,China;Shandong Xingyuan Mine Equipment Group Co.Ltd.,Jining,Shandong 272300,China)

机构地区：[1]南京工程学院汽车与轨道交通学院,江苏南京211167 [2]江苏大学国家水泵及系统工程技术研究中心,江苏镇江212003 [3]山东星源矿山设备集团有限公司,山东济宁272300

出　　处：《排灌机械工程学报》2021年第7期706-711,共6页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家自然科学基金资助项目(51806082);江苏省重点研发计划项目(BE2018085);江苏省工业和信息化厅研发项目(274241126901801);四川省教育厅重大培育项目(18CZ0016);南京工程学院校级科研基金资助项目(YKJ201933)。

摘　　要：为了综合研究推力盘外特性和推力轴承水膜特性,突破紧凑型大功率湿式电动机的技术瓶颈,保证机组工作时推力盘作辅助叶轮能够同时平衡机组轴向力并提供内循环扬程,设计了水润滑推力轴承与推力盘综合试验台.试验台包含主试验段、轴向力测试单元、传感器单元与控制单元等部分.运用试验台,得到了1500,2000,3000,4000,5000和6000 r/min共6种不同转速工况下推力盘作辅助叶轮的水力性能以及推力轴承的水膜承载力、水膜厚度等特性.基于数值计算方法,对试验台所测水膜厚度进行了仿真验证,结果表明:综合试验台上所测得的数据准确可靠,水润滑推力轴承与推力盘综合试验台的成功搭建,为相关领域内的研究提供理论依据和工程指导有着重要意义.In order to completely study the hydraulic performance of thrust disc and the water film cha-racteristics of thrust bearings,break the technical bottleneck of compact big-power wet motor,ensure that the thrust disc as auxiliary impeller could balance the axial thrust and provide the head for water circulation in the motor when the pump is in operation,a comprehensive test rig for water-lubricated thrust bearings and thrust disc was designed and built.The test rig consists of main test section,axial thrust test unit,sensor unit and control unit,etc.The hydraulic performance of the thrust disc,water film bearing capacity and film thickness were acquired by using the test rig at six rotative speeds such as 1500,2000,3000,4000,5000,and 6000 r/min.The measured water film thickness was validated with the thickness predicted by employing a numerical method.The results show that the data obtained on the test rig is accurate and reliable.The water-lubricated thrust bearings and thrust disc integrated test rig can provide a theoretical basis and engineering guidance for further investigations in related fields,and has important meaning.

关 键 词：推力轴承 推力盘 湿式电动机 试验台 数值模拟 

分 类 号：S277.9[农业科学—农业水土工程]