| 摘要 |
A shaft seal of hydro-machine has a body, backup and closing rings, a mechanism for displacement of closing ring and device for control of displacement of closing ring. The body, closing ring and control device are placed in the cover of hydro-machine, and backup ring is installed on the shaft. The closing ring adjoins the body and is arranged with packing cord and is movable with respect to the body. The mechanism for displacement of closing ring is installed in the body, arranged as row of pins uniformly distributed in circle and arranged with slots for turn ant at two sides – with placed in eccentric positions cams connected at one side to the backup ring and at the other side to the control device, and the control device has a body, slide placed in the body and connected to pin of mechanism of closing ring displacement, rod and indicator of displacement. Such shaft seal of hydro-machine makes it possible to provide access to it, control of its operation and signaling about closing it. |
