甘蔗收获机两段式螺旋捡拾机构模拟与试验

    Simulation and experiments of two-stage spiral sugarcane picking-up mechanism

    • 摘要: 为了提高丘陵地带和坡地倒伏甘蔗的扶起率,该文提出了两段式螺旋捡拾机构设想,应用计算机建立了两段式螺旋扶起机构虚拟模型,进行了虚拟试验,确定了捡拾段的结构,建立了两段式螺旋捡拾机构接触点的运动方程、接触点的速度方程和甘蔗被扶起的运动条件,样机的试验结果表明:当甘蔗倒伏状态角在小于30°的顺倒伏状况下扶起率为20%,在30°~60°状况下为90%;甘蔗在侧倒伏状况下扶起成功率为100%;甘蔗在90°~120°的逆倒伏状况下扶起率为50%,在120°~150°的状况下仅为10%,在150°~180°逆倒伏状况下扶起率为0。

       

      Abstract: To improve the picking-up ratio of sugarcane in hillside area, design of two-stage spiral sugarcane picking-up machine was brought up in this paper. Computer model was established and applied for simulation of the virtual prototype. Further more, the structure of the picking-up section was confirmed, and the athletics and speed equations of the two-stage spiral sugarcane picking-up machine were constructed, and the athletics condition of lifting sugarcane was established. The results of the sample machine showed that, the ratio of success picking-up was 20%, 90% and 100% respectively when the lodging angle was less than 30%, between 30° and 60° and at 90° side lodging. It was 50%, 10% and 0 respectively when the lodging angle was between 90° and 120°, between 120° and 150° and between 150° and 180°.

       

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