【摘要】 脱粒过程中,谷穗与弓齿的接触数在一定程度上反映脱粒装置的性能和能力。本文根据“接触次数”的原理分析了一些现有的脱粒装置,建立了弓齿排列的数学模型和谷穗的运动轨迹方程式。利用这些方程式,可用计算机较精确地计算出脱粒过程中谷穗与弓齿的接触次数。更多还原

【Abstract】 The times of contact of teeth with a grain ear in the threshing process is consid ered for explaining the performance and capability of the threshing unit. On the basis of the analysis of threshing units currently used also, a mathematical model of bow-wire tcoth arrangement and kinematic equations for grain ear have been set up in this paper. Thus, the times of contact of teeth with a grain ear can be calculated by a computer accurately.更多还原