| 摘要 |
PROBLEM TO BE SOLVED: To send out lubricating oil in a transmission case from a lubricating oil sending-out port by arranging a cylinder part in an oil storage part of the transmission case, arranging a spiral on a rotary shaft to be driven in rotation by interlocking with a transmission mechanism on the inside of it, and rotating it. SOLUTION: The inside end is opened (3a) in an oil storage part 2A integrated into or integally arranged in a lower part of a transmission case 2, and a cylinder part 3 in which a lubricating oil sending-out port 3b is opened is arranged in a bottom wall part on the opposite side of it. A rotary shaft 4 whose axis coincides with its center is supported by bearings 5 and 6, and motive power is transmitted through gear trains 8 and 9 from a transmission mechanism 1. A spiral 10 is implanted in its rotary shaft 4. The spiral 10 is rotated in the cylinder part 3 by operation of the transmission mechanism, and lubricating oil in the transmission case 2 is sent out toward a desired part from the lubricating oil sending-out port 3b. Therefore, the lubricating oil can be inexpensively circulated with a simple structure, and an oil temperature rise in the lubricating oil can also be restrained low. |
