摘要
采用自行搭建机械密封实验台,对菱形孔织构端面密封进行多种工况的机械密封运转试验,从而获得润滑和密封性能良好的端面织构。在给定工况条件下,考察菱形孔织构的尺寸、形状、排布方式以及深度对摩擦扭矩、腔体温度和端面温度的影响规律、端面间液膜的运动形态及其孔型成膜机理分析。结果表明:在同工况条件下,6种织构端面的摩擦扭矩排序为:6#≤4#≤3#≤2#≤7#≤1#,故摩擦学性能最好是6#试件;同样,所产生的密封腔体温度△Tq°C和端面温度△Td°C具有相似规律。具有合适孔型尺寸、孔深、分布形式和方向角的织构端面,会产生极好的动压、空化和界面滑移效应以及二次存储油液功能,可有效提高端面密封性能,减小端面摩擦扭矩。
Self-built mechanical seal test bench was used,the mechanical seal operation tests for the end face seal with the diamond pores shaped are carried out under various operating conditions,so the end surface texture with better lubrication and sealing performance is obtained. Under given operating conditions,the influences of size,shape,arrangement and depth of diamond pores texture on friction torque,cavity temperature and end surface temperature was investigated,the motion form of liquid membrane between the ends and film mechanism are analyzed. The results show that the friction torques of the six textures end faces sort for 6^#≤4^#≤3^#≤2^#≤7^#≤1^# under the same operating conditions,the best tribological performance is the 6#test piece. The same,the sealing chamber temperature and end surface temperature of the six textures are similar to that of the friction torques of six textures during the operation. End face with texture of suitable size,depth,distribution form anddirection angle can produce excellent dynamic pressure,cavitation,interface slip effect and secondary storage oil function,which can improve the sealing performance and reduce the friction torque.
作者
程香平
孟祥铠
彭旭东
张友亮
付远
康林萍
CHENG Xiangping;MENG Xiangkai;PENG Xudong;ZHANG Youliang;FU Yuan;KANG Linping(Institute of Applied Physics,Jiangxi Academy of Sciences,330029,Nanchang,PRC;The MOE Engineering Center of Process Equipment and Its Manufacture,Zhejiang University of Technology,310032,Hangzhou,PRC)
出处
《江西科学》
2018年第4期638-643,共6页
Jiangxi Science
基金
国家青年科学基金项目(51505203)
江西省科技开发和产业化开发项目(20151BBE51065)
2017年江西省科学院(厅)级重大科技专项(2017-Y2D2-02)
2018年江西省科学院(厅)级重点研发项目(2018-YZD2-25)
关键词
摩擦磨损
织构端面
密封性能
摩擦扭矩
菱形
friction and wear
texture end face
sealing performance
friction torque
diamond
