对水稻联合收割机的脱粒和清选机构应有如下几点要求:1.稻麦通用,2.适应于湿脱,3.生产率高,4.脱粒和分离能力强。目前的脱粒机构大体上可分为:半喂入、全喂入和半全通用等三种。这些脱粒机构各有其特点。半喂入式脱粒机构的组成:由喂入夹持输送链(上期已介绍)、滚筒及包在滚筒外围的滚筒腔(图1)组成。由这些部件完成输送、脱粒、分离工艺过程。 Threshing and cleaning institutions for rice combine harvesters should have the following requirements: 1. Rice and wheat common, 2. Adapt to wet off 3. Productivity, 4. Threshing and separation ability. The current threshing mechanism can be roughly divided into: semi-feed, full feed and semi-all three and so on. These threshing institutions have their own characteristics. The composition of the semi-feed threshing mechanism consists of feed holding the conveyor chain (described in the previous section), the drum, and the drum chamber (Figure 1) that is wrapped around the periphery of the drum. By these components to complete delivery, threshing, separation process.