| 摘要 |
PURPOSE:To smoothly cool and oil a turbine shaft of an apparatus for pulverizing a molten metal by forming the inside of the turbine shaft into a hollow shape, segmenting the inside of the hollow chamber to cooling water passages and oiling passages and feeding oil to the shaft from the diametral inside thereof. CONSTITUTION:The molten metal is dropped onto a disk 3 which rotates at a high speed in a furnace in which an inert gas is maintained. The turbine shaft 4 as a driving shaft to rotate the rotary disk 3 is supported by a radial bearing 8 and is rotated at a high speed. The inside of the shaft 4 is formed to the hollow shape 9 in which the cooling water passages 10 for cooling the shaft and the oiling passage 11 for the lubricating oil to be supplied between the shaft and the radial bearing 8 are provided. The heat from the rotary disk 3 heated by the molten metal is cooled by the cooling water flowing in the cooling water passages 10 and the lubricating oil is thoroughly supplied to the radial bearing 8 by the oiling passages 30 provided in the radial direction from the passage 11.
|
