【摘要】：水稻缽苗Z字形寬窄行移栽是一種新型農(nóng)藝方式,通過(guò)將缽苗移栽和Z字形寬窄行種植相結(jié)合,可有效提高水稻的產(chǎn)量和質(zhì)量。缽苗移栽是將帶土缽的秧苗從缽盤(pán)中取出并植入田間的農(nóng)藝過(guò)程,這種移栽方式克服了毯狀苗插秧傷根的缺點(diǎn),移栽的秧苗抗病能力強(qiáng),成活率高,無(wú)緩苗期,可實(shí)現(xiàn)水稻的大幅增產(chǎn)。Z字形寬窄行種植是將相鄰兩行水稻秧苗交替種植,并以寬行和窄行間隔分布,這種種植方式可增加田間的光照和通風(fēng),從而減少病蟲(chóng)害,提高水稻抗倒伏能力,實(shí)現(xiàn)水稻產(chǎn)量和品質(zhì)的提高。由于傳統(tǒng)插秧機(jī)或缽苗移栽機(jī)均無(wú)法完成水稻缽苗Z字形寬窄行移栽,實(shí)際生產(chǎn)中主要依靠人工完成,作業(yè)成本高、效率低,導(dǎo)致這種農(nóng)藝方式難以推廣。本文提出一種變差速水稻缽苗Z字形寬窄行移栽機(jī)構(gòu),利用差速輪系的不等速傳動(dòng)和空間傳動(dòng),結(jié)合齒輪箱雙側(cè)移栽臂結(jié)構(gòu),以空間軌跡實(shí)現(xiàn)水稻缽苗Z字形寬窄行移栽。本文的主要研究?jī)?nèi)容如下:1)機(jī)構(gòu)創(chuàng)新,通過(guò)探索可以同時(shí)實(shí)現(xiàn)缽苗移栽和Z字形寬窄行移栽的機(jī)構(gòu)構(gòu)型,提出了一種以圓齒輪、非圓齒輪和交錯(cuò)斜齒輪組成的差速輪系為核心部件的變差速水稻缽苗Z字形寬窄行移栽機(jī)構(gòu)。2)理論研究,將非均勻B樣條曲線理論應(yīng)用于非圓齒輪節(jié)曲線的擬合,并分析了非圓齒輪的傳動(dòng)特性,采用坐標(biāo)變換方法建立了機(jī)構(gòu)齒輪箱輪系的數(shù)學(xué)模型。3)參數(shù)優(yōu)化,將水稻缽苗Z字形寬窄行移栽的軌跡和姿態(tài)要求參數(shù)化為9個(gè)具體的運(yùn)動(dòng)學(xué)優(yōu)化目標(biāo),并利用MATLAB軟件編寫(xiě)了基于機(jī)構(gòu)數(shù)學(xué)模型的可視化參數(shù)優(yōu)化界面,并分析了機(jī)構(gòu)齒輪和移栽臂的結(jié)構(gòu)和位置參數(shù)對(duì)移栽軌跡形狀、姿態(tài)以及軌跡偏移量等目標(biāo)參數(shù)的影響規(guī)律,優(yōu)化出了一組滿足水稻缽苗Z字形寬窄行移栽要求的結(jié)構(gòu)參數(shù)。4)三維建模和仿真分析,完成了機(jī)構(gòu)傳動(dòng)箱、齒輪箱和移栽臂中各零件的結(jié)構(gòu)設(shè)計(jì),利用UG軟件進(jìn)行了三維建模,并將裝配后的虛擬樣機(jī)導(dǎo)入ADAMS軟件進(jìn)行運(yùn)動(dòng)學(xué)仿真和分析,機(jī)構(gòu)移栽臂取秧夾片尖點(diǎn)仿真軌跡和速度與理論數(shù)據(jù)基本一致。5)物理樣機(jī)試驗(yàn),加工了右側(cè)移栽機(jī)構(gòu)的零件并進(jìn)行了裝配,利用自制試驗(yàn)臺(tái)架、工業(yè)相機(jī)和圖像處理軟件對(duì)機(jī)構(gòu)移栽臂運(yùn)動(dòng)軌跡和姿態(tài)進(jìn)了分析,結(jié)果與理論數(shù)據(jù)基本吻合,驗(yàn)證了移栽機(jī)構(gòu)方案的可行性和結(jié)構(gòu)的合理性。
[Abstract]:Rice potted seedling with narrow Z shape width and narrow row transplanting is a new type of agronomic method. The rice yield and quality can be effectively improved by combining the pot seedling transplanting with Z shaped width and narrow row planting. The transplanting of potted seedlings is an agronomic process in which the seedlings with soil bowl are removed from the bowl and implanted in the field. This transplanting method overcomes the shortcomings of the carpet seedling transplanting seedlings and hurts the roots. The transplanted seedlings have strong resistance to disease, high survival rate and no slow seedling period. Z zigzag width and narrow row planting is the alternate planting of adjacent two rows of rice seedlings and distributed in wide and narrow rows. This planting method can increase the light and ventilation in the field, thus reducing the disease and insect pests. To improve the lodging resistance of rice and to improve the yield and quality of rice. Because the traditional transplanter or the pot seedling transplanter can not complete the rice bowl seedling Z zigzag width narrow row transplanting, the actual production mainly depends on the manual completion, the work cost is high, the efficiency is low, resulting in this kind of agronomic method is difficult to popularize. In this paper, a kind of Z zigzag width narrow row transplanting mechanism of rice pot seedling with variable differential speed is proposed. By using the unequal speed transmission and space transmission of differential gear train and combining the double side transplanting arm structure of gear box, the Z shape width narrow row transplanting of rice bowl seedling is realized by space track. The main research contents of this paper are as follows: 1) Mechanism innovation, through exploring the mechanism configuration which can realize the transplanting of bowl seedling and Z shape width and narrow row transplanting simultaneously, a kind of round gear is put forward. The differential gear train composed of non-circular gear and staggered helical gear is the core component of the variable-differential rice seedling Z zigzag width and narrow row transplanting mechanism. 2) the theory of non-uniform B-spline curve is applied to the fitting of non-circular gear pitch curve. The transmission characteristics of non-circular gear are analyzed, and the mathematical model of gear train of mechanism gearbox is established by using coordinate transformation method. 3) parameter optimization. In this paper, the parameters of Z shape wide and narrow row transplanting of rice seedling are changed into nine specific kinematics optimization objectives, and the visual parameter optimization interface based on mechanism mathematical model is compiled by MATLAB software. The influence of the structure and position parameters of the gear and the transplanting arm on the target parameters such as the shape of the transplanting trajectory, the attitude and the trajectory deviation are analyzed. A set of structural parameters which can meet the requirement of Z shape width and narrow line transplanting of rice bowl seedling are optimized. 4) 3D modeling and simulation analysis are carried out, and the structural design of each part in the mechanism transmission box, gear box and transplanting arm is completed. The 3D modeling was carried out by using UG software, and the virtual prototype was imported into ADAMS software for kinematics simulation and analysis. The trajectory and velocity of the simulation of the tip point of the transplanting arm and the clip were basically consistent with the theoretical data. 5) physical prototype test. The parts of the right transplanting mechanism were machined and assembled. The motion track and attitude of the transplanting arm of the mechanism were analyzed by using self-made test-bed, industrial camera and image processing software. The results were in good agreement with the theoretical data. The feasibility of the scheme and the rationality of the structure are verified.
【學(xué)位授予單位】：浙江理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：S223.9

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 張?jiān)驶?遲立軍;趙勻;徐洪廣;朱藝媛;;斜齒外嚙傾斜式寬窄行插秧機(jī)分插機(jī)構(gòu)的設(shè)計(jì)[J];農(nóng)業(yè)工程學(xué)報(bào);2012年07期

2 徐洪廣;趙勻;張?jiān)驶?鄭建;;圓柱凸輪滑移式寬窄行分插機(jī)構(gòu)運(yùn)動(dòng)學(xué)機(jī)理分析[J];浙江理工大學(xué)學(xué)報(bào);2012年04期

3 劉麗君,祖?zhèn)?張瑞忠;大豆窄行平播密植條件下的干物質(zhì)積累規(guī)律[J];東北農(nóng)業(yè)大學(xué)學(xué)報(bào);2000年01期

4 陳國(guó)榮;冉龍平;陳紹雄;林平;;標(biāo)準(zhǔn)化寬窄行栽桑模式的調(diào)查[J];四川蠶業(yè);2007年04期

5 盧憲菊;李子忠;段雯曉;夏盛;;寬窄行種植對(duì)東北風(fēng)沙土區(qū)玉米水分利用及產(chǎn)量的影響[J];土壤通報(bào);2014年04期

6 林國(guó)強(qiáng),黃建成,陳志雄,胡潤(rùn)芳,徐樹(shù)傳;窄畦窄行穴播大豆群體生理指標(biāo)及光分布特點(diǎn)[J];中國(guó)油料作物學(xué)報(bào);1998年03期

7 呂景良,岳德榮,董英山,劉凱,李立波,高淑芹;大豆高產(chǎn)高效配套技術(shù)的研究 Ⅱ-大壟窄行栽培品種鑒評(píng)[J];吉林農(nóng)業(yè)科學(xué);1999年06期

8 曾兵;羅莉斯;李大雄;;高產(chǎn)優(yōu)質(zhì)雜交油菜黔油29號(hào)制種技術(shù)研究 Ⅱ.寬窄行制種應(yīng)用效果及技術(shù)規(guī)程[J];種子;2012年10期

9 齊宏立,石躍進(jìn),趙俊俠,楊蘇龍,史俊東;棉花等距雙株栽培技術(shù)研究初報(bào)[J];山西農(nóng)業(yè)科學(xué);1999年02期

10 黎歡吉;陳維群;張年梅;張百忍;王代鋼;張寶群;楊濤;;桑樹(shù)寬窄行錯(cuò)位密株配套栽培技術(shù)[J];北方蠶業(yè);2008年02期

相關(guān)會(huì)議論文 前1條

1 紀(jì)文義;;大豆窄行精密平播技術(shù)及配套機(jī)具的應(yīng)用[A];2007年中國(guó)農(nóng)業(yè)工程學(xué)會(huì)學(xué)術(shù)年會(huì)論文摘要集[C];2007年

相關(guān)碩士學(xué)位論文 前6條

1 張群;寬窄行配置對(duì)帶狀套作玉米光合特性及產(chǎn)量的影響[D];四川農(nóng)業(yè)大學(xué);2014年

2 麻臣俊;步行直夾式水稻缽苗寬窄行移栽機(jī)構(gòu)的原理分析與優(yōu)化設(shè)計(jì)[D];浙江理工大學(xué);2016年

3 張委;直取式水稻缽苗寬窄行移栽機(jī)構(gòu)研究[D];浙江理工大學(xué);2017年

4 毛世民;變差速水稻缽苗Z字形寬窄行移栽機(jī)構(gòu)研究[D];浙江理工大學(xué);2017年

5 劉曉龍;水稻缽苗寬窄行移栽機(jī)構(gòu)的優(yōu)化設(shè)計(jì)與試驗(yàn)研究[D];浙江理工大學(xué);2015年

6 朱藝媛;變性橢圓齒輪行星輪系寬窄行分插機(jī)構(gòu)機(jī)理分析與優(yōu)化[D];浙江理工大學(xué);2013年

，

本文編號(hào)：2315783