农机化研究
農機化研究
농궤화연구
Journal of Agricultural Mechanization Research
2016年
6期
143-148,154
,共7页
玉米%钵育移栽%送苗机构%切苗机构%仿真分析
玉米%缽育移栽%送苗機構%切苗機構%倣真分析
옥미%발육이재%송묘궤구%절묘궤구%방진분석
corn%pot seedling%seedling feeder%cutting seeders%motion simulation
随着大农业的发展,依靠建设高标准田和使用大型农机具使玉米产量和质量都有所提高,但产能空间有限. 玉米钵育移栽是提高产量的重要措施之一. 针对国内半自动移栽机移栽速度慢、移栽质量差、需要大量人工,国外移栽机结构复杂、成本高的问题,设计了一种由曲柄棘轮机构带动同步带实现送苗和行星齿轮系构成的切苗机构,并建立了机构的运动学模型和优化数学模型. 同时,利用 MatMLab 进行优化求解,当连杆长度为2 5 4 .8 8 mm、摇杆长度为1 6 5 .0 1 mm时,传动效果最好,并利用 SolidWorks 软件进行了仿真分析. 结果表明:在电机转速为9 0 r/min 时,供苗效果最好,完整度好,切割速度快,合格率高,能够满足移栽要求. 该机构稳定性好、工作可靠,为全自动玉米钵育移栽机的研制开发提供了依据.
隨著大農業的髮展,依靠建設高標準田和使用大型農機具使玉米產量和質量都有所提高,但產能空間有限. 玉米缽育移栽是提高產量的重要措施之一. 針對國內半自動移栽機移栽速度慢、移栽質量差、需要大量人工,國外移栽機結構複雜、成本高的問題,設計瞭一種由麯柄棘輪機構帶動同步帶實現送苗和行星齒輪繫構成的切苗機構,併建立瞭機構的運動學模型和優化數學模型. 同時,利用 MatMLab 進行優化求解,噹連桿長度為2 5 4 .8 8 mm、搖桿長度為1 6 5 .0 1 mm時,傳動效果最好,併利用 SolidWorks 軟件進行瞭倣真分析. 結果錶明:在電機轉速為9 0 r/min 時,供苗效果最好,完整度好,切割速度快,閤格率高,能夠滿足移栽要求. 該機構穩定性好、工作可靠,為全自動玉米缽育移栽機的研製開髮提供瞭依據.
수착대농업적발전,의고건설고표준전화사용대형농궤구사옥미산량화질량도유소제고,단산능공간유한. 옥미발육이재시제고산량적중요조시지일. 침대국내반자동이재궤이재속도만、이재질량차、수요대량인공,국외이재궤결구복잡、성본고적문제,설계료일충유곡병극륜궤구대동동보대실현송묘화행성치륜계구성적절묘궤구,병건립료궤구적운동학모형화우화수학모형. 동시,이용 MatMLab 진행우화구해,당련간장도위2 5 4 .8 8 mm、요간장도위1 6 5 .0 1 mm시,전동효과최호,병이용 SolidWorks 연건진행료방진분석. 결과표명:재전궤전속위9 0 r/min 시,공묘효과최호,완정도호,절할속도쾌,합격솔고,능구만족이재요구. 해궤구은정성호、공작가고,위전자동옥미발육이재궤적연제개발제공료의거.
With the development of agriculture and the help of high standard of the farmland and use of large agricultural implements , the quality and output of corns have improving , but the ability is limited .In order to solve the problem , pot seedling is used .Semi-automatic seedling machines ' low speed , bad quality and high cost made it unpopular .Cutting seeders with the help of crank ratchet driving seeders and planetary gear is designed based on the paper seedling tray made by Heilongjiang Bayi Agricultural University .The equation of mechanisms ' kinematics and optimized parameter was found.The MATLAB showed the optimized result is that the length of linkage and rocker is 254.88mm and 165.01mm, which works well .The result of SolidWorks Motions showed that the works and seedling tray is well , the speed of cutting seedling tray and percent of pass is high at the speed of 90r/min, which meets the agronomic requirements .The mecha-nisms provide the basis of design of fully automated corn pot seedling machines .