Design Of Reciprocating Device Of Picking Mulberry Leaves And The Optimization And Matching Of Its Velocity

The silkworm industry plays an important role in China’s economy, especially the national implementation of "sericulture moving from east to west" strategy since the mulberry planting area of the western region of our country is increasing year by year. However, research on automatic picking mulberry leaves in our country is very few, still stay in the stage of mulberry leaves plucking hand picking. Result in the silkworm production process. Picking the time and the cost are high in the rapid development of silkworm mulberry leaf, mulberry leaf picking today, has already become the bottleneck restricting its development. In recent years, although our country appeared a few of mulberry leaves plucking the patent, but the majority still rely on hand picked, not to change the status quo of China mulberry leaf picking. In order to realize the automatic picking mulberry leaves, the research and design of the reciprocating mulberry leaf picking machine. This paper mainly off several aspects:(1) To the mulberry field investigation, understand the specific situation and the growth of mulberry cultivation farm in the method. Referring to literature about the mulberry planting in the development process of our country, identified in the mulberry picking from mulberry branch stem from the ground about 30 cm at the beginning, the picking of travel is about 1200 cm. Mulberry cultivation agriculture in general use of ridge distance 80 cm, 40 cm spacing way, to determine the specific size of mulberry leaves plucking machine.(2) According to the growth situation and planting mulberry, to determine the 2.5 ring closure wrap the mulberry, bottom-up movement way for the realization of mulberry leaf picking work. Using the 3D design software Solidworks, completed the structural design work of reciprocating mulberry leaf picking machine. After on the basis of investigation on reciprocating, mulberry leaves plucking machine picking efficiency and picking efficiency was analyzed, and compared with the artificial picking, picking mulberry leaves plucking machine efficiency increased by 1308%, 100 acres of mulberry picking cost savings per 88.3%, have good application value.(3) According to the mulberry leaf picking way, through simple experiments to determine the mechanical, physical and mechanical properties of the mulberry leaf petioles connected at the root and mulberry branches are dry, the analysis and calculation of the mulberry leaves plucking process based on the theory of elastic wave, the minimum speed of picking tool. The reciprocating mulberry leaf picking device according to the moving parts of the stress change of the picking process is divided into 6 stages, respectively analyzes the power consumption of the 6 stage of picking device, provides the basis for the subsequent design of mulberry leaves plucking machine.(4) According to the movement of mulberry leaves plucking machine device during the process of picking with the time and motion over a period of time, has carried on the velocity matching. To determine the structural parameters and the transmission systems of each motion device. Analyses on the walking device, intermittent motion mechanism to optimize the speed, determined by the geneva mechanism for walking device and a positioning device to provide intermittent motion.