| The plug seedlings transplanting technology has bec me the new hot spot in the field of drylandtransplanting. This technology not only can be able to solve the labor shortage and The tomato saucefactory set processing capacity is limited, but also can play the role of climate compensation. The plugseedlings transplanting machine is a kind of transplanting machinery to send plug seedlings to the farmland.And its key components–taking seedlings device can achieve plug seedling transplanting processautomation, reduce the labor intensity plug seedlings transplanting operation, improve quality croptransplanting, and promote China crop mechanization and automation processes.In this paper, the device automatically takes seedlings overall design and simulation analysis,including the following aspects:(1)Designed to take seedlings device suitable processing tomato transplanting, plug seedlingsmorphological characteristics were studied.With the growth seedling age, plug seedlings developed rootsystem can be completely wrapped complete plug seedlings matrix. The average height of181.2mm to79.4mm foliar tenter stem diameter of3.3mm, true number of leaves3to5.Same time to take seedlingssuccess rate, the plug seedlings physical characteristics analyzed, including plug seedlings soil moisture in,flip ratio, stromal collapse rate and top matrix output and anti-stress.(2) Plug seedlings seedling transplanting machine to take device functional requirements analysis, thispaper presents overall design plug seedlings transplanting machine take seedlings device. Derivation theoptimization equation to determine the whereabouts of the orbit of0.80m when the results are satisfactory;through the establishment of investment seedlings mouth span model, take actual vote seedlings mouthspan of0.12m; use mechanical optimization design by Matlab software programming, select the springwire diameter of1.0mm, number of turns for25laps, pre-compression to meet requirements mandrelquickly reset8.6mm.(3) Using UG software to establish the part model, based mutual cooperation relations betweenvarious parts, this article the plug seedlings seedling transplanting machine to take virtual prototype deviceassembly as well as interference checking. ADAMS kinematics and dynamics simulation analysis on thedecapitated seedlings devices and Seedling Guide device. As size ejector speed relatively large impact onsuccess rate, through the simulation analysis, setting mandrel ejection speed appropriate range of1.5~2.3m/s.(4) To take seedling success rate indicators to plug seedlings soil moisture in, flip than rate stromalcollapse and matrix anti-stress influencing factors in seedlings device test bench orthogonal test andapplication DPS data processing systemDuncan’s multiple range test data processing and analysis.Eventually come to affect the success rate is the biggest factor plug seedlings soil moisture in and matrixanti-stress, followed by matrix collapse rate, the smallest flip than. analysis showed that the plug seedlingmatrix moisture content was35%of plug seedlings matrix anti-stress for6N matrix collapse rate of4%,take seedlings highest success rate. |
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