| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of a conventional axle driving device for transmitting a motive force from an electric motor to an axle via a gear part, specifically, lubricant oil in the first oil reservoir of a driving case bottom is supplied to the second oil reservoir of a driving case upper part by scraping it up by rotating the gear of the gear part to adjust the oil surface height of the first oil reservoir, however, lubricant oil is introduced into the second oil reservoir only during advancement of a working vehicle, and the oil surface is excessively high, thereby causing large gear stirring resistance. <P>SOLUTION: The introduction structure of introducing lubricant oil in a first oil reservoir 25 scraped up by rotating the gears 52 and 54 of a gear part 23 into a second oil reservoir 26 includes: a first introduction oil path 81 for receiving the lubricant oil scraped up by a ring gear 54 rotated according to forward rotation of axles 24L and 24R; and a second introduction oil path 82 for receiving the lubricant oil scraped up by a large diameter gear 52 and the ring gear 54 rotated according to backward rotation of the axles 24L and 24R. <P>COPYRIGHT: (C)2012,JPO&INPIT |
