大豆收获中损失率约占5～8%,其中,收割台损失占总损失的55～85%。造成大豆收获损失有以下四方面:1.割茬高,漏马耳朵角;2.炸粒;3.掉技;4.倒伏傍叉。为了降低机器收获损失,我场经多年的研究、试验和改进,研制了大豆单体护刃器低割装置(见图)。该装置具有:1.采用可锻铸铁制成的单体护刃器,不仅适于低割,而且坚固耐磨、分禾能力强。一般收割机的收割台,当安装切割装置进行作业时,其下倾斜角为9°～15°;而收割台上安装单体护刃器后,由于前伸和下降的原因,其倾斜角不大于6°,故收割 Soybean harvest loss rate of about 5 to 8%, of which, the loss of the header of the total loss of 55 to 85%. Resulting in the loss of soybean harvest has the following four aspects: 1. Stubble high, missing ears ear angle; 2. Blasting; 3. Abandon; In order to reduce the loss of machine harvest, my field after years of research, testing and improvement of the development of a single low-cut unit soybean protection device (see photo). The device has: 1. Made of malleable iron monomer guard blade, not only for low cut, but also strong wear-resistant, grazing ability. The general harvester’s harvester, when installed cutting device for the operation, the next tilt angle of 9 ° ~ 15 °; and harvesting platform mounted single guard, due to the reasons for the advance and fall, the tilt angle is not greater than 6 °, so harvesting