Speed and the Angle of tuyere of Centrifugal fan are main factors for Combine sieve surface airflow distribution.

离心风机的转速及其出风口角度是影响联合收割机筛面气流场分布的两个主要因素。

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Of the chute, the slope requirements of fit, the best angle of 25 degrees -40 degrees, chute between the hopper and pumps to have a certain space, easy to clean hopper and sieve.

对溜槽，要求坡度适当，倾斜角度最好为25度-40度，溜槽与泵机料斗之间要留有一定的空间，便于清洗料斗和筛子。

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The regulation devices of the wind direction, the adjustment devices of the angle of the sieve, the shape of the sieve were designed reasonably, and the overall prototype was designed and developed.

对风向调节装置、床面角度调节装置、床面形状进行了合理的结构设计，完成了整体样机的设计开发。

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