| 摘要 |
In a winch for ropes or cable, having a drum receiving and being connected to for being driven by at least one planetary gear, the drum is journalled by means of ball or roller bearings disposed to both sides (axially) of the ring gear of the planetary gear, a driving shaft is journalled in a stationary part of the winch to which is also connected the said ring gear for remaining stationary therewith, the stationary part of the winch extending into the drum and circumscribing the driving shaft; a supporting annulus having a cylindrical, sleeve-like portion bears against but is not secured to the drum, and in a cylindrical interface therewith; the sleeve has an annular groove holding a sealing ring which bears against the drum at said interface to provide sealing between the annulus and the drum; an outer race as part of one of the bearings is mounted to the inside of said sleeve; an inner race of that one bearing is disposed on the stationary part as extending into the drum; the supporting annulus has an inwardly directed flange on the side of the said one bearing facing axially the exterior of the drum; oil tight, radial sealing rings are disposed between said stationary part on one hand and the flange and the shaft on the other hand. These rings, the annulus, the stationary shaft and the shaft itself close to one side of the drum; the other side of the drum is closed by a bottom with oil drainage openings. |
