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1978年研制了大型轴流滚筒试验台,该试验台具有可更换的三种滚筒、四种凹板和五种上盖,可组成七种不同结构的轴流滚筒方案进行对比试验。1979～1980年用该试验台进行了小麦、大豆和玉米等作物的120余次试验。从试验中看出: 1.七种结构方案均可达6公斤/秒的喂入量,损失率小于1％,大豆破碎率为0.5～1％,玉米破碎率为3％;钉齿叶片滚筒与三栅条凹板组成方案的脱粒、分离性能最强,对作物湿度的适应性最大,但功率消耗较大;纹杆叶片滚筒与三栅条凹板组成方案的综合指标最好,但对作物湿度的适应性较差。 2.各方案在脱较干小麦和大豆时,分离物含杂率较高,脱较湿小麦时次之,脱玉米时最小。
In 1978, a large axial roller test bed was developed. The test bed has three kinds of replaceable rollers, four kinds of concave plates and five kinds of upper covers, and can be used to make comparison tests of seven kinds of axial roller solutions with different structures. From 1979 to 1980, more than 120 trials of crops such as wheat, soybeans and corn were carried out with this test rig. From the experiment, we can see: 1. The seven kinds of structure schemes can all feed 6 kg / s, the loss rate is less than 1%, the soybean breaking rate is 0.5-1% and the corn breaking rate is 3% With the composition of the trilobate concave plate, the threshing and separating properties are the strongest, and the adaptability to the crop humidity is the most, but the power consumption is larger; the comprehensive index of the composition scheme of the rapier blade cylinder and the trilobate concave plate is the best, The adaptability of crop humidity is poor. 2. Each program in the off-dry wheat and soybeans, isolates higher content of impurities, off when wet wheat, followed by corn when the smallest.