【正文】 學(xué)士學(xué)位論文 氣吸式精量鋪膜播種機(jī)設(shè)計(jì) THE DESIGN OF FILMING AIRSUCTION PRECISION SEEDER 摘 要 I 摘 要 近年來(lái)，精密播種已成為播種作業(yè)中一個(gè)最具研究潛力的熱門話題。精密播種是提高糧食單產(chǎn)的一項(xiàng)現(xiàn)代化綜合性技術(shù)措施，涉及到育種、種子加工、精密播種機(jī)具、土壤精細(xì)耕作、植保、施肥和灌溉等一系列技術(shù)。 精密播種技術(shù)的實(shí)施 ,可節(jié)省大量?jī)?yōu)良種子，可節(jié)省田間間苗、定 苗用工，種 子分布合理，減少肥料和光能損失，可增加作物產(chǎn)量，經(jīng)濟(jì)效益顯著。隨著育種、種子加工處理技術(shù)、農(nóng)藥、除草劑和水利灌溉技術(shù)的不斷發(fā)展與完善 ,使種子的發(fā)芽率和保苗率有了一定的保證，從而使精 密 播種技 術(shù)有了更可靠的保證 ,氣吸式播種機(jī)則是一種用氣流的吸附力將種子從種子堆中分離出來(lái)，從而達(dá)到單?；螂p粒精密播種的目的，同機(jī)械式精密排種器相比具有省種、不傷種、對(duì)種子尺寸要求不嚴(yán)、適應(yīng)力強(qiáng)、易于實(shí)現(xiàn)單粒精播和高作業(yè)速度等諸多優(yōu)點(diǎn)，因此氣吸式精密播種機(jī)是目前國(guó)內(nèi)外精密播種機(jī)發(fā)展的重點(diǎn)。 關(guān)鍵詞 ： 氣吸式；精密播種；排種裝置； 開(kāi)溝器 ； 佳木斯大學(xué)工學(xué)學(xué)士學(xué)位論文 II Abstract In recent years, precision seeding has bee one of the most planting operation research potential topic. Precision seeding is to improve the grain yield of a modern prehensive technical measures, involves the breeding, processing and sowing seeds in the soil, precision machinery plant, farming, fine and irrigation, fertilization technology. Precision seeding technology, saves the implementation of good seed, can save the reasonable distribution of labor, seeds, fertilizers and reduce energy losses, can increase crop yield, and the economic benefit is remarkable. With the seed breeding, processing technology, pesticides, herbicide and irrigation technology unceasing development and perfection of seed germination had certain assurance, so precision seeding technology has a more reliable assurance, gas absorption type machine is a kind of air from the seeds seed adsorption of isolated, achieve single or double grain sowing purpose, with precision mechanical precision seed metering devices, pared with province of seed, don39。t hurt size requirement is lax, adaptable, easy to realize single grain sowing and pure advantages of high speed of operation, thus suction precision machine precision machine development at home and abroad is the key. Keywords： Gas absorption type。 Precision drilling。 The device。 Sowing boot 佳木斯大學(xué)工學(xué)學(xué)士學(xué)位論文 III 目 錄 摘 要 ............................................................................................................................... I Abstract .............................................................................................................................. II 第 1 章 緒論 ...................................................................................................................... 1 播種機(jī)發(fā)展現(xiàn)狀與趨勢(shì) ........................................................................................... 1 我國(guó)播種機(jī)發(fā)展現(xiàn)狀 ............................................................................................... 1 播種機(jī)發(fā)展前景 ....................................................................................................... 2 第 2 章 播種機(jī)各工作部件的設(shè)計(jì) .................................................................................. 5 排種器的設(shè)計(jì) ........................................................................................................... 5 吸孔直徑和吸室真空度的設(shè)計(jì) ............................................................................... 6 排肥器的設(shè)計(jì) ........................................................................................................... 8 開(kāi)溝器的設(shè)計(jì) ........................................................................................................... 9 開(kāi)勾器的基本 類型 .................................................................................................. 9 施肥開(kāi)溝器的選擇 ................................................................................................. 11 播種開(kāi)溝器的選擇 ................................................................................................. 11 鎮(zhèn)壓裝置的設(shè)計(jì) ..................................................................................................... 11 鎮(zhèn)壓裝置的類型 .................................................................................................... 11 常用的鎮(zhèn)壓裝置 .................................................................................................... 12 風(fēng)機(jī)的設(shè)計(jì) ............................................................................................................. 13 第 3 章 播種機(jī)的總體結(jié)構(gòu)和技術(shù)參數(shù) ........................................................................ 15 播種機(jī)的構(gòu)造及原理 ............................................................................................. 15 主要技術(shù)參數(shù) ......................................................................................................... 16 整機(jī)的各部分結(jié)構(gòu)和設(shè)計(jì)計(jì)算 ............................................................................. 17 通用機(jī)架 ............................................................................................................... 17 支承輪及支承輪架 ................................................................................................. 19 四桿機(jī)構(gòu) ............................................................................................................... 19 排種裝置 ............................................................................................................... 20 排肥裝置 ............................................................................................................... 21 種肥箱 .................................................................................................................. 22 種箱的容積計(jì)算 .................................................................................................... 22 肥箱的容積計(jì)算 .................................................................................................... 22 排肥傳動(dòng)機(jī)構(gòu) ........................................................................................................ 23 排肥量計(jì)算 .......................................................................................................... 24 排種傳動(dòng)機(jī)構(gòu) .............................................