首页>
外国专利>
Rock bit having a mechanical seal with superior thermal performance
Rock bit having a mechanical seal with superior thermal performance
展开▼
机译:具有机械密封的岩石钻头,具有出色的热性能
展开▼
页面导航
摘要
著录项
相似文献
摘要
A drill tool includes a bit body, at least one bearing shaft extending from the bit body and a cone mounted for rotation on the bearing shaft. A mechanical seal is disposed between the bearing shaft and the cone in a seal gland. The mechanical seal includes a rigid seal ring having a dynamic sealing surface with the cone and another non-sealing surface exposed to an aperture in the seal gland. The mechanical seal further includes at least one cooling channel formed in the another non-sealing surface of the rigid seal ring, the cooling channel having an open end in fluid communication with the aperture in the seal gland.
展开▼