摘要
针对某装置的活塞和缸体间存在着摩擦而易使密封失效的问题,介绍了几种常用于动密封的密封机理与密封结构形式,采用组合密封结构密封性能良好。组合密封结构中的导向环起定位和导向作用,挡圈起支承和定位作用,弹性橡胶圈提供预紧力并补偿密封环的磨损,密封环与油缸内孔形成配合而对偶面产生密封效果,因此组合密封结构能够满足使用要求。
For the existence of friction between a piston and cylinder device easily seal failure to introduce several commonly used in dynam- ic sealing sealing mechanism and sealing structure type, using a combination of sealing structure sealing performance.Guide rings from the po- sitioning and guiding role in the structure of the combined sealing, retaining ring from the supporting and positioning the role of elastic rubber ring preload and compensate for the wear of the seal, seal ring and cylinder bore to form complexes with a sealing effect even surface, so the combination seal structure to meet the requirements.
出处
《机械管理开发》
2013年第2期91-92,共2页
Mechanical Management and Development
关键词
动密封
密封机理
组合密封
dynamic seal
sealing mechanism
combination of sealed
