| 摘要 |
A device (Fig. 2) for evenly spooling a trailing electric cable (32) onto a cable reel drum (38) mounted on a mine vehicle powered via that cable includes a rotatable cylindrical cam (102, Fig. 4) rotatably driven in a predetermined ratio to the speed of rotation of the drum. The cable passes to the drum through a reciprocable cable guide mounted on a pivotally oscillatable assembly (152, 138, 134, 132) which includes a cam follower (132) which engages in a cam track formed in the surface of cam (102). Thus, as the cam 102 rotates, the cable guide swings through a shallow arc approximating to a straight line parallel to the axis of rotation of the drum whereby the guide is moved over the entire axial extent of the drum at a predetermined constant velocity parallel with the drum axis. The cam track on the rotatable cam is arranged to provide an immediate change in direction of movement of the cable guide when the cable guide arrives at either end of the cable reel drum. <IMAGE> |
