| 摘要 |
A gate valve includes a body with inlet and outlet cavities, nut of screw pair nut-spindle, inner steel clutch on the surface of which permanent magnets are placed, coaxially with respect to the shell of the screen, on its outer side outer steel clutch is placed, in the inner cavity of that one permanent magnets are placed as well. At tat the opposite poles of the magnets of inner and outer steel clutches are directed towards each other, and besides that the outer steel clutch is connected to flywheel. The body of the gate valve is connected to the body of worm reducer, the nut of screw pair nut-spindle has connection to the hub of worm wheel of the reducer, the free end of the worm of that one is placed in closed cavity that is formed by the body of the reducer and the shell of the screen connected to it. At that the free end of the worm is connected to the inner steel clutch, and in the cover of the reducer, coaxially with respect to the spindle, buffer is placed, this is arranged as a closed branch pipe. |
