| 摘要 |
<p>A drive system 100 for an aircraft landing gear 10 includes a drive assembly comprising an input gear 128 rotatable about an input axis by an input shaft and a driven gear 110 configured to be attached to the wheel 16 so as to be capable of rotating the wheel about a wheel axis. An engagement assembly 130 comprises a first intermediate gear 132 meshed with the input gear and rotatable about a first intermediate axis by a first intermediate shaft and a first drive pinion 136 mounted on the first intermediate shaft and arranged to rotate in tandem with the first intermediate gear. The engagement assembly is pivotable about the input shaft relative to the drive assembly. A locking device 160 is engageable to prevent rotation of the first intermediate gear about the first intermediate axis. The drive system is arranged to move from a neutral configuration in which the first drive pinion is not meshed with the driven gear and the locking device is engaged so that the wheel can rotate freely (e.g. during take-off or landing), to a first driven configuration in which the first drive pinion is meshed with the driven gear and the locking device is disengaged so that the drive system can rotate the wheel (e.g. during ground taxiing operations). The drive assembly may include a second intermediate gear 134, a second intermediate shaft and a second drive pinion 138.</p> |
