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Development Of An Automatic Water Replenishing Device Beet Transplanting Machine

Posted on:2014-03-08Degree:MasterType:Thesis
Country:ChinaCandidate:S P LiangFull Text:PDF
GTID:2253330425952906Subject:Agricultural mechanization project
Abstract/Summary:PDF Full Text Request
Beet is one of the most important crops in high drought cold area of China, Itsplanting area is wide. Beet transplanting is a new technology to improve the yield andsugar content of beet, But in our country, high quality and high yield of sugar beet stillexist bottleneck problems. One of the main reasons is after transplanting seedlingsurvival rate needs to be improved and slow growth in urgent need of shortening,another is plant transplanting machine in China is not suitable.Little of sugar beet plant transplanting machine existing Our country now hasbeen provided with a water inlet device, farmers always used sprinkler or full fieldirrigation way of filling water, the way not only caused huge waste of waterresources,reduced the use efficiency of water and has been brought economic loss tosociety. Some transplanting machine with water device can replenish soil surface overthe seedlings. This way couldn’t supply enough water and has exsited a question ofmoisture evaporation,so that it has maked the survival rate of seedlings result to extendor reduce. Ultimately researches about the right beets to transplanting automatic fillingwater institutions are crucial.In view of the dryland geographic situation and Combined with beet transplantingin hydrating agronomic and efficiency require, One way to fill the water undergroundwhich suit replenishment of Beet paper tube seedlings has been conformed.It injectionwater on the seedlings root to make wet earth formed under the surface of the ballarea.This way has increased the soil moisture content and slow evaporation to Extendthe storage time with dry soil covering the surface. It not only ensured the necessarymoisture when seedling transplanting, but also to improve the survival rate, shorten theresult, finally increased production is critical.About the performance of the existing plant, sugar beet transplanting machineequipped with duck-billed planting has been chosen. When Characteristic parametersλ>1,four connecting rod rotary offset double disc planting device can work normally, itHas zero velocity for seedlings point on the trajectory to ensure seedlings uprightdegree。This machine use CAM mechanism can control seedling clip, Seedling clipoptimal open Angle is20o. According to the variability of transplanting planting depthand speed, the multi-factors orthogonal test has been maked in view of the plantingapparatus design parameters, and we can determine that the planting quality is best, when beet hydrating transplanting machine is in3.5-5.5km/h speed and145-160mmplanting depth.Injection type underground filling water planting apparatus is increasing fillingwater system in planting apparatus to insure a simultaneous of hydrating andtransplanting. Two injection type underground filling water with mechanical control andelectromagnetic control have been developed,1.Mechanical control type of filling watersystem is increases hydrating interlin inside the duck mouth planting device andAutomatic control of filling water system by mechanical switch. Principle of work isthat Seedling clip maked mechanical switch to fill water when plant was opened andshut down when plant was too. But this way was with problems such as hydratinghysteresis, too large holes and unadjustable water.2.Electromagnetic control type usedcircuit design and used the travel switch and solenoid valve to control hydrate procese.ithas overcomed problems owned by mechanical control type and has the advantages ofprecision and adjustablility. System consists of power supply, press bar, travel switchand filling water device. When planting device inserted into the underground,Compressive bar make travel switch open, so as to control the solenoid valve openimplementation of filling water. When planting device turned off the ground, Travelswitch was out of compressive bar to make the solenoid valve shut down. The openingtime maked by adjusting the stroke switch turning arm position according to thoserequirements. The water injection starting moment is before10oto the position ofcompressive bar rotating to the seedling clip open. Volume is within60-400ml and canbe adjustable According to field conditions. A field experiment has been tested in thenorthwest of hebei bashang region. Trials show that150-200ml Volume is the bestchoice for filling water and Increase production.200-300ml volume can achieveseedling production. water use efficiency would drops and beet production trend smoothwith more than300ml volume.
Keywords/Search Tags:Transplanter, beet, methods of water injection type undergroundwater, Automatic water planting device
PDF Full Text Request
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