| 摘要 |
PCT No. PCT/SE93/01068 Sec. 371 Date Jul. 10, 1995 Sec. 102(e) Date Jul. 10, 1995 PCT Filed Dec. 15, 1993 PCT Pub. No. WO94/15114 PCT Pub. Date Jul. 7, 1994A compact gear with a gear housing (1) and an outgoing main shaft (4) which is rotatable in relation to the gear housing (1). The gear housing (1) supports a motor (2) with a drive shaft (3) projecting into the gear housing (1). On the drive shaft (3) there are arranged a first larger (6) and a second smaller conical toothed wheel (7). Transversely through the main shaft (4) extends a cross shaft (9) which is rotatably journalled in the main shaft (4). On opposite sides of this cross shaft (9) two equally large first (13) and second (14) crown wheels are rotatably arranged on the main shaft (4). The crown wheels (13, 14) engage, on opposite sides, with a third conical toothed wheel (12) arranged on the cross shaft (9). A third crown wheel (18) with a larger diameter than the second crown wheel (14) is rotatably arranged around the main shaft and secured to the second crown wheel (14). The second smaller conical toothed wheel (7) engages with the first crown wheel (13) and the first larger conical toothed wheel (6) with the third crown wheel (18). The gear ratio between the second conical toothed wheel (7) and the first crown wheel (13) is different from the gear ratio between the first conical toothed wheel (6) and the third crown wheel (18). |
