| 摘要 |
A stump grinder mountable on a three-point hitch of a conventional tractor and provided with a laterally and longitudinally movable cutter wheel. The stump grinder includes a support frame adapted for mounting on the three-point hitch, a swing frame horizontally pivotally mounted on the support frame, an elongated main beam vertically pivotally mounted on the swing frame, and a telescopic extension slidably mounted on the main beam. A side-cutting cutter wheel is rotatably mounted on the telescopic extension such that it is rotatable about a horizontal transverse rotational axis. The stump grinder is driven from the tractor power take-off with a drive line which includes first and second telescopic driveshafts and an intermediate support coupling mounted on the main beam, the driveshaft on the tractor side including a CV-joint on each end, and the driveshaft on the cutter wheel side including U-joint on each end. The support frame for the stump grinder is of sufficient height to rest upon the ground and stabilize the stump grinder during use.
|
