| 摘要 |
A series of coned rings (120,130) are placed concentrically between the dished flange (110) splined to the freewheeling pinion (20) on the drive shaft (30), and a coned bush (170) mechanically connected to the central drive hub (40). This hub is splined to the central shaft (30) and the bush connected to it, can move axially under the action of a selector arm (180) to wedge the rings and provide a mechanical drive between shaft and pinion. The coupling of a free wheeling pinion (20) with a shaft (30) of a gearbox consists of a hub (40) fixed on a shaft (30), a coned bush (170) free to rotate on the hub (40). The mechanical coupling is by items (110,120,130,140) placed between the coned bush (170) and the pinion (20), which by rubbing friction equalizes the speed between the shaft (30) and the pinion (20) and transfers the rotational movement received from the hub by pushing axially on the pinion (20) and hence transmitting the torque. The coupling is made up of a multi-coned synchronizing assembly (110,120,130,140) of which the lower ring (140) is solid in rotation with the hub (40), and of which the upper ring (110) is solid with the rotating pinion (20). |
