Crowd drive assembly for power shovels
AssigneeDresser Industries, Inc.
InventorGeorge B. Baron
Life of this patent
Estimating the term…
Abstract
In a power shovel having a main support unit, a front end assembly operatively connected to the main support unit and a rope crowd system mounted on the main support unit and operatively connected to the front end assembly, a crowd drive assembly for the rope crowd system comprising a rope drum mounted on a support frame supported on the main support unit, a drive shaft journaled in the support frame adjacent the tangential point of the crowd rope wound on the rope drum, transversely spaced means disposed on the drive shaft for transmitting torque to the rope drum and an appropriate motor and gear arrangement supported on the main support unit for driving the drive shaft.
Claims22
In a power shovel having a main support unit, a front end assembly operatively connected to said main support unit and a rope crowd system mounted on said main support unit and operatively connected to said front end assembly, a crowd drive assembly for said rope crowd system comprising a rope drum mounted on a support frame supported on said main support unit, a pinion drive shaft journaled in said support frame adjacent the tangential point of said crowd rope wound on said drum, transversely spaced means disposed on said pinion drive shaft for simultaneously transmitting torque to said rope drum and means supported on said main support unit for driving said pinion drive shaft.
In a power shovel having a support unit, a front end assembly including a working implement, operatively connected to said support unit and a rope crowd system mounted on said support unit and operatively connected to said front end assembly, a crowd drive assembly comprising a support frame mounted on said support unit, a rope drum rotatably mounted on said support frame, and a drive unit comprising a gear case mounted on said support frame, a pinion shaft journaled in said gear case and said support frame, said shaft having a pair of pinions formed integrally therewith drivingly engaged with gears provided on said rope drum, adjacent a tangential point of a crowd rope wound on said rope drum, a motor having a drive shaft mounted on said support unit and a planetary gear set disposed in said gear case, said gear set including a sun gear mounted on said motor shaft, a ring gear mounted on said gear case and a plurality of planetary gears mounted on a rotatable carrier operatively connected to said pinion shaft, and means for restraining the rotation of said gear case.
Dependencies are inferred from the claim text.