Abstract:The furrow sowing with whole plasticfilm mulching on double ridges was widely used in the arid region of northwest China, because it could resist drought and increase production. So the mechanical plowing and filming on seedbed was an inevitable trend in farming. With aim to solve these problems about picked film, tore film and kind of holes with seedlings dislocation which were caused by the traditional film seeding machine, an electric direct insert hillseeder was designed based on the mechanism with approximate constant speed with corn whole plasticfilm mulching on double ridges. The electric direct insert hillseeder was designed by applying the rotating guide rod mechanism in series with the sine institutions and forced seeding mechanism, direct insert sowing mechanism and feeding system. And the structural parameters of its key parts were analyzed. Field experiment showed that through the mechanism with approximate constant speed to match the amplification mechanism, can control and coordinate the direct insert sowing mechanism. It achieved that the holeformer horizontal velocity component was zero in sowing period and excavating period, the planting distance could be adjusted within a certain range, and the arrangement of the soil hole and the holeformer motion trajectory were all reasonable. It adopted forced seeding mechanism to control the holeformer precision opening and rapid closing in fixedpoint, which could effectively alleviate more seed, positive hole and the hillseeder blocking under the plasticfilm. The operation machine field planting performance test related indicators were up to the relevant work quality evaluation specification requirements, and compared with the generation of prototype work performance had greater improvement and upgrading, which was to meet the requirements of agronomic techniques of dryland corn furrow seeder with whole plasticfilm mulching on double ridges.
