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本文在田间调查的基础上,对禾秆积聚系数作了进一步的探讨,发现禾秆积聚系数 q 不但与所施加压力 P 的大小有关,而且作物的田间情况对它也有很大的影响,使得在 q 与 P 之间难以找出一个比较明确的相互关系。本文中提出将禾秆积聚系数分为禾秆自然积聚系数 q_自与禾秆受压积聚系数 q_压两部分。由于 q_压主要与所施加压力 P 的大小有关,因此 q_压与 P 之间便有了一个比较明确的函数关系,可以近似地用一个数学式 q_压=f(P)来描述。这样,为半喂入联合收割机夹持链输送机构的参数选择提供了依据。而且也大大简化了禾秆积聚系数 q 的测定方法。
Based on the field investigation, this paper further discussed the accumulation coefficient of the straw, and found that the accumulation coefficient of the straw is not only related to the size of the applied pressure, but also the field condition of the crop has a great impact on it. It is difficult to find a clear relationship between q and P. In this paper, the straw accumulation coefficient is divided into two parts: the natural accumulation coefficient of straw and the pressure accumulation coefficient of straw. Since q_ is mainly related to the magnitude of applied pressure P, there is a relatively clear functional relationship between q_ and P, which can be approximated by a mathematical formula q_pressure = f (P). This provides a basis for the selection of parameters for the semi-fed combine harvester chain conveyor. But also greatly simplifies the determination of straw accumulation coefficient q.