谷物联合收获机上的逐稭器对脱出物的喂入量、湿度、组成成分等的变异程度至为敏感.喂入过多、湿度增大就使分离不净.逐稭器比其他工作部件具有较低的通过能力,限制了机器生产力的发挥.它已成为收获机上最薄弱的一环.到目前为止逐稭器的尺寸常常是参考个别已有机器的参数选定的,其中有一定的盲目性.用理论公式计算时,由于脱出物的运动复杂、性状多变,在设计中系数不易正确选定,结果往往不很可靠. Stalkers on the grain combine harvester are sensitive to the degree of variation in feed, humidity, composition, etc. Excessive intake and increased humidity make the separation less clear than by other working parts Lower throughput limits the productivity of the machine and it has become the weakest link on the harvester. So far the size of the straw has often been chosen with reference to the parameters of individual existing machines, some of which are blind When calculating with theoretical formula, due to the complicated movement of the prolapse and the changeable traits, the coefficient can not be correctly selected in the design, and the result is often not very reliable.