甘蔗收获机排杂风机设计与试验

为解决甘蔗联合收获机的排杂问题，设计了一种在甘蔗收获机排杂装置中使用的新型风机，并在试验台上进行了试验研究。以排杂风机出风口风速为试验指标，对风机转速、进风口方式和进风口面积进行了单因素试验。试验结果表明，风机最佳性能参数为：风机转速为1?800?r/min、进风口方式为轴向进风、进风口面积为16?475和19?119mm2、距离出风口为50?mm时，出风口风速最大。其5个测量点的风速平均值依次为：13.867、14、11.633、11.333、12.383?m/s。后期排杂试验表明，在此最佳参数下，风机排杂效果最佳。

Design and experiment of impurity discharging fan of sugarcane harvester

In order to solve the question of vent impurity of the sugarcane combine harvester, the new fan on the vent impurity device of sugarcane harvester was designed, and experiments were carried out on the test-bed. The wind speed of outlet of impurity discharging fan was guide line, the single experiments were conducted to study in the following factors: the new fan speed, inlet mode and inlet area. The results show that the best parameters of impurity discharging fan were respectively speed of fan was 1800r/min, inlet mode was the axial, inlet area were 16475, 19119mm2 and distance of fan outlet was 50mm. The wind speed averages of the five measurement points were respectively 13.867, 14, 11.633, 11.333, 12.383m/s. In the optimal parameters were proved to be the best by experiment on the impurity discharging fan.