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弓齿对谷物穗头的梳刷次数及其均匀性,可以从一个重要的角度反映半喂入自动脱粒装置滚筒的脱粒性能。实验测定可以得到较为真实的梳刷次数及其均匀性。但是,限于条件,实验测定的范围受到了一定的局限性。当忽略穗头受激后在滚筒腔中的摇动、振动与穗头之间的相互制约等动态因素时,则可以利用电子计算机对在其它各种因素变化条件下,弓齿对穗头的梳刷次数进行研究。本文把这样得到的理论上的梳刷次数,称之为接触次数。这里,着重讨论弓齿排列对接触次数的影响。
The number of comb teeth and the evenness of the bow teeth on the grain spikes can reflect the threshing performance of the semi-feeding automatic threshing device drum from an important point of view. The experimental results can be more true brush times and uniformity. However, limited to the conditions, the experimental determination of the scope of some limitations. When ignoring the head excited in the drum cavity after shaking, vibration and the head between the constraints of other dynamic factors, you can use the computer to change under various other factors, the bow of the head of the comb Brush the number of research. In this paper, the theoretical number of brushing thus obtained is called the number of contacts. Here, we will focus on the influence of bow arrangement on the number of contacts.