| 摘要 |
<p>Planetary gearing comprising a sun gear (14), planet gears (17) disposed around the sun gear and rotatably connected to an output shaft (13), and a ring gear (29) disposed around the planet gears (17). A clutch ring (22, 25) and a synchronising ring (36, 37) are located one on each side of the ring gear (29) and a pair of clutch sleeves, arranged externally of the clutch rings (22, 25), synchronising rings (36, 37), and ring gear (29), are displaceable to couple the ring gear (29) with, or disengage the ring gear (29) from, the output shaft (13). The clutch sleeves (46, 47) may be displaced by a shaft (52).</p> |
