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US 6,412,260 B1Granted
Direct drive system with a flywheel for an agricultural combine
AssigneeCase Corporation
InventorsJohn Bradley Lukac, Xitian Fang, Joshua J. Wolters
Life of this patent
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Abstract
A drive system for the sieves in an agricultural combine that includes a flywheel for improving the fatigue life of the sieves. The flywheel minimizes damaging accelerations in the sieves that result from speed variations in the drive shaft. A hydraulic motor is also provided for directly driving the sieves without the use of belts.
Claims7
A drive system for a reciprocating sieve in an agricultural combine, comprising:
- a) a power source and a drive linkage;
- and
- b) a flywheel connected to said drive linkage for minimizing accelerations in said sieve, said drive linkage includes an oscillation mechanism that moves said sieve in a reciprocating, back-and-forth motion said oscillation mechanism further includes:
- i) a connecting arm;
- and
- ii) a pivot member that is pivotally attached to said connecting arm and is pivotally attached to said sieve,
- iii) a rotating member that is attached in an offset manner to a drive shaft;
- iv) a ball bearing installed onto the outer diameter of said rotating member;
- and
- v) an annular member installed onto the outer diameter of said ball bearing, the annular member being attached to said connecting arm.
7 more elements
Dependencies are inferred from the claim text.