摘要
本文从牙轮钻头运动的受力及工作环境分析出发,认为O型橡胶密封圈早期失效不可避免。提出用x型或无间隙端面密封代替O型密封结构,用聚四氟乙烯代替橡胶作为密封材质。
Starting from analyzing the stress of roller bit motion and the working situation, the author considers that early losing effectiveness of the O-shaped rubber seal ring is inevitable and proposes using the X-shaped seal ring or end-face seal without gap to replace the O-shaped seal ring and using polytetrafluo-roethylene as the sealing material to replace rubber.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1990年第4期50-51,共2页
Natural Gas Industry
关键词
牙轮钻头
钻头
轴承
密封
improvement,roller bit,bit bcaring,sealing component.
