水润滑推力轴承与推力盘综合试验台设计

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1500,2000,3000,4000,500...

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

In order to completely study the external performance of thrust disc and the water film characteristics 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 1 500, 2 000, 3 000, 4 000, 5 000, and 6 000 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.