Device and method for adjustment of sieve openings in a cleaning mechanism for a combine harvester
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United States of America Patent
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Oct 22, 2002
Grant Date -
N/A
app pub date -
Jul 7, 2000
filing date -
Jul 9, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for adjusting the opening width of vibrating sieves in a cleaning mechanism of combine harvesters is arranged on and vibrates directly with the sieves or the sieve frame. The device includes an electric-motor-driven adjusting mechanism which actuates in a direction along an axis which differs from the direction in which the sieve is vibrating. A detector is activated when a particular sieve opening width is achieved. When the detector is activated, the particular opening width is associated with a position of the adjusting mechanism as measured by a position sensor, thereby allowing calibration of further adjustments to the sieve opening.
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