| 摘要 |
The invention is a mechanical seal as- sembly for use between a stationary body and a rotating shaft. The seal assembly in- cludes a stationary element, a rotating bias- ing element and a rotating tensioning ele- ment. The rotating biasing element is sealed to the rotating shaft utilizing an o-ring seal. The tensioning member is rigidly mounted to said shaft using an interference fit backed up by set screws or the equivalent. The stationary assembly is centered about the shaft and rigidly fastened to the stationary body. Either the stationary element or the rotating follower element may hold pack- ing in a radial packing groove, as a sealing medium. An axial biasing force provided by coil springs (or other compressive means) on the periphery of the rotating follower plate and secured by the rotating tensioning ele- ment insures intimate contact of the packing medium to the stationary element and rotat- ing biasing element sealing face, thus pro- viding a fluid tight seal. In the preferred embodiment, the elements are provided as a fully split design, enabling this seal to be assembled on a rotating shaft without the ne- cessity of access to the end of the shaft.
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