分瓣式磁脂旋转密封装置耐压性能试验研究  

Experimental Research on Sealing Pressure of Magnetic Grease Rotary Sealing Device with Split Structure

作　　者：张其滨[1] 余中军[1] 王东[1] 

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,湖北武汉430033

出　　处：《润滑与密封》2017年第5期96-101,共6页Lubrication Engineering

摘　　要：某型大容量蒸发冷却电机上采用的磁脂旋转密封装置具有分瓣结构、运转线速度高、密封间隙大、密封直径大等特点。为测试其耐压性能,建立分瓣式磁脂旋转密封装置耐压性能试验平台,在转轴极齿间及靠近腔体内侧布置压力传感器测点,测试各道磁脂密封耐压压力,研究极齿间距、线速度等参数对分瓣式磁脂旋转密封装置耐压性能的影响。结果表明:各道极齿间的密封耐压性能分布规律与理论值不一致;极齿间距越大,则该道磁脂密封耐压能力相对较高;在一定范围内,线速度对各道磁脂密封耐压能力影响很小。Magnetic grease rotary sealing device used in a certain type of large capacity evaporative cooling motor has characteristics of split structure, high line speed, large diameter and shaft diameter, and etc. In order to test the sealing pressure of the magnetic grease rotary sealing device with split structure, test platform was built. The effects of pole teeth gap and line speed on the sealing pressure of the device were researched through measuring the sealing pressure in pole teeth gap of rotary shaft and inside cavity by pressure sensors.The results show that the distribution rule of sealing pressure of each track of pole teeth does not follow the theory value.The greater the pole teeth gap, the higher the sealing pressure in this track of magnetic grease seal.Within a certain range, line speed has little effect on the sealing pressure of each track of magnetic grease seal.

关 键 词：磁脂 旋转密封 耐压能力 

分 类 号：TB42[一般工业技术]