【摘要】 根据力学原理，建立了开沟机起步加速瞬间的运动方程，在获得其前后轮接地载荷的基础上，对开沟机的稳定性问题进行了讨论，为整机稳定性设计提供了理论依据更多还原

【Abstract】 The chain ditcher with preceding cutting tools is mainly used in a limited working space such as orchard. Its peculiarity in the accelerating stage of starting has an important meaning to its overall stability during operating and to determining the design parameters. On the basis of mechanical principles the instantaneous movement equations of a chain ditcher were established, its contact forces between the ground and the wheels both front and behind were yielded and its working stability was studied during the accelerating stage of starting. Besides, a critical condition under which the ditcher doesn’t turn up was determined and the main parameters and their effects were discussed.更多还原