Dual ratio drive for rotary shear
AssigneeSiemens Industry, Inc.
InventorPeiliang Zhang
Life of this patent
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Abstract
A dual ratio drive for a rotary sheer comprises a parallel pair of first shafts carrying freely rotatable first gears. A pair of second shafts are rotatable about axes parallel to the axes of the first shafts. Each second shaft carries a shear blade, and a second gear in meshed relationship with one of the first gears. A drive shaft is connectable to one of the second shafts by a first gear set having first high speed ratio, and is connectable to one of the first shafts by a second gear set having a low speed ratio. A clutch alternately engages one or the other of the first and second gear sets to drive the second shafts and their respective shear blades at the different speeds.
Claims7
A dual ratio drive for a rotary dividing shear comprising:
- a parallel pair of first shafts;
- intermeshed first gears rotatably mounted on said first shafts;
- a pair of second shafts rotatable about axes parallel to the axes of said first shafts, each of said second shafts having fixed thereto a shear blade and a second gear in meshed relationship with a respective one of said first gears;
- a drive shaft;
- a first gear set having a first gear ratio for establishing a first drive connection between said drive shaft and one of said second shafts to thereby rotate said second shafts at a first speed;
- a second gear set having a second gear ratio different from said first gear ratio for establishing a second drive connection between said drive shaft and one of said first shafts to thereby rotate said second shafts at a second speed different from said first speed;
- and
- clutch means for alternately engaging said first and second gear sets.
Dependencies are inferred from the claim text.