Design And Simulation For Corn Precision Dibbler

Corn is one of the world's three major food crops, its planting area is second to rice and wheat, ranked the third. With the update of corn varieties and the improvement of production conditions and cultivation techniques, the corn planting area grows rapidly, higher requirements on the seed, so needs good performance of precision planter. The foreign precision planter which mainly pneumatic precision planter key to the large planter, efficient development. However, it cannot be used in the mountain because of its complicated structure and high cost.At present, it is not enough high in agricultural mechanization level to the income of farmer and technology in China. Therefore,It will became an important strategic to study mechanical precise planter.Precision planting is defined as precise row spacing,seed spacing, planting depth and seedlings per hill, sowing the seeds into soil. Precision planting can save seeds , reduces the field thinning, conduce to cultivating and weeding and field management,which provided material guarantee for the realization of increasing yield for grain crops in arid and semi-arid areas.Meanwhile, the precise planting can raise utilization ratio of seeds and decrease the seeds cost.In this paper, the structure and parameters of the corn precision dibbler was designed and analysised in theoretical based on study the existing dibbler.The duck-beak compulsive opening device was designed, which was combined control by roller oscillating follower disc cam and planar four-bar linkage.The theoretical contourline of cam and coordinates points in the duck-beak compulsive opening device was obtained using ADAMS software and Pro / ENGINEER software. The solid of cam was designed accurately.The simulation model of precision dibbler is established by applying ADAMS/view software. The duck-beak compulsive opening device is simulated to measure the duck-beak's swing angle, angular velocity and angular acceleration.The simulation results show that the dibbler meets the requirement of design.The motion of soil opener and slip ratio of impacting soil hole shape was simulated,improving the design correctness and avoiding design errors.