Reduction gear with external leakage suppression function of the lubricating oil

摘要

PROBLEM TO BE SOLVED: To prevent the leakage of lubricating oil by generating operating force in a gear case for preventing the behavior of leaking the lubricating oil existing in the gear case toward other places to leave the lubricating oil in a position where it is originally supplied.;SOLUTION: Air suction force generated by the operation of a compressor 41 is operated on air in the gear case 3 via a suction air hole 37 of the gear case 3. Thereby, air is sucked and air pressure in the gear case 3 is made into negative pressure somewhat lower than the atmospheric pressure outside the gear case to produce a pressure difference from the atmospheric pressure. Then, outside thrust force on the inside of the gear case 3 with the pressure difference is operated on the lubricating oil existing in the gear case 3 to prevent the leakage of the lubricating oil to the outside of the gear case 3.;COPYRIGHT: (C)2005,JPO&NCIPI