| 摘要 |
PURPOSE:To prevent the oil mist from pouring out and also to reduce the maintenance work by providing a liquid well to either one of a rotary shaft or an oil tank and an annular ring to the other the end of which is immersed in the inactive liquid in the liquid well. CONSTITUTION:An annular liquid well 7 is provided to a rotary shaft, inactive liquid 9 being filled in the liquid well 7, and an annular ring 8 is provided to the upper part of an oil tank 5, the end of the annular ring 8 being immersed in the inactive liquid 9. As the oil mist from the oil tank 5 is completely sealed in this manner, the oil mist is prevented from pouring out. As for the maintenance, since it will suffice if the inactive liquid is periodically replenished by the amount of a vapor loss, the maintenance work of the seal area can be reduced. |
