开沟、挖渠、清淤是农田基本建设的重要项目,特别是开沟排水渗碱是低洼易涝和盐碱地改良的有效方法。随着农田基本建设和农田水利化的发展,开沟、挖渠和清淤的工作量越来越大。用人工开沟、挖渠和清淤,劳动强度大,进度缓慢,满足不了农业发展的需要,迫切需要实现机械化。旋转开沟机是一种比较新型的开沟机具。它以旋转工作部件切抛土壤。同铧式开沟犁相比,它的优点是:牵引阻力很小,用同样功率的拖拉机可以挖较大 Ditching, digging ditches and dredging are important items of farmland infrastructures. In particular, ditching drainage and infiltration of alkali is an effective method for low-lying waterlogging and salinization improvement. With the development of farmland infrastructures and farmland water conservancy, the workload of ditching, dredging and dredging is increasing. Ditching with artificial, dredging and dredging, labor intensity, slow progress, can not meet the needs of agricultural development, the urgent need to achieve mechanization. Rotary ditcher is a relatively new type of ditching machine. It cuts the soil by rotating working parts. Compared with the share of open-ditch plow, its advantages are: traction resistance is very small, with the same power tractor can dig larger