ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In order to realize the stability and high efficiency of seedling taking and throwing of vegetable transplanter, a fully automatic seedling taking and throwing device based on a combined struture of crank rocker and guide rail was designed according to the seedling taking and throwing mode of bowl. The seedling taking and feeding device cooperated with the tray feeding device, seedling guiding device and seedling sorting device to complete the independent tray feeding, seedling taking, seedling throwing and seedling sorting. The structural parameters of rocker-rail and crank rocker in seedling feeding device were designed by analytic method, and the movement process of seedling feeding device was calculated and analyzed by vector equation method and ADAMS simulation, and the actual movement track of seedling feeding device taken by high-speed camera was compared with simulation result, which verified the correctness and feasibility of the design. Taking pepper bowl seedling as test object, seedling speed, plant height and matrix moisture content were selected as test factors, and orthogonal test was carried out with seedling success rate, seedling injury rate, seedling throwing success rate and success rate of planting as evaluation indexes. The results of the experiment showed that under the given factor level, when the single row of the whole machine seedling taking and throwing speed was 90 plants/min, the seedling height was 110mm and the matrix moisture content was 50%, the seedling picking and throwing effect was the best. The seedling taking success rate was 95.14%, the damage seedling rate was 1.39%, the seedling throwing success rate was 93.05% and the success rate of planting was 91.67%.