地表殘膜回收機(jī)的設(shè)計(jì)與研究畢業(yè)設(shè)計(jì)
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- 目 錄
摘要...............................................................1
英文摘要..........................................................2
前言...........................................................3
課題的來(lái)源及目的意義.........................................3
2.1地膜覆蓋種植技術(shù)發(fā)展概況.....................................3
2.2地膜覆蓋種植技術(shù)帶來(lái)得負(fù)面影響...............................3
2.3殘膜回收的一般方法...........................................4
2.4殘膜機(jī)收的必要性.............................................4
地膜回收技術(shù)在國(guó)內(nèi)外的應(yīng)用及存在問(wèn)題.......................4
3.1目前國(guó)內(nèi)殘膜回收機(jī)現(xiàn)狀.......................................4
3.2 國(guó)內(nèi)機(jī)具研究的情況...........................................4
3.3 現(xiàn)有的地膜回收機(jī)械..........................................8
3.4 綜上所述殘膜回收技術(shù)應(yīng)用存在的問(wèn)題..........................9
3.4.1 頭水前揭膜................................................9
3.4.2 收獲后殘膜回收............................................9
3.4.3 春播前拾膜................................................9
3.5 新疆建設(shè)兵團(tuán)棉花種植情況存在的問(wèn)題......................... 9
地膜回收方案選擇.......................................10
4.1技術(shù)要求....................................................10
4.2機(jī)器作業(yè)工藝方案............................................10
方案的選擇說(shuō)明.........................................10
5.1收膜工藝....................................................10
5.2各部件的結(jié)構(gòu)特點(diǎn)............................................11
5.2.1 劃膜部件................................................. 11
5.2.2 撿膜部件................................................. 11
5.2.3脫卸膜部件分析............................................ 11
5.2.4集膜部件分析.............................................. 12
5.2.5動(dòng)力分析.................................................. 12
5.2.6得出方案.................................................. 12
設(shè)計(jì)的主要參數(shù).........................................12
6．1破膜部件...................................................12
6．2撿膜部件....................................................13
6.2.1圓弧形彈齒滾筒機(jī)構(gòu)的構(gòu)造及工作原理........................13
6.2.2齒間距的選定及實(shí)際配齒法..................................13
6.2.3 結(jié) 論....................................................14
6．3脫卸膜部件.................................................. 14
6.3.1脫卸膜部件采用方式........................................14
6.3.2滾筒直徑的選取............................................15
6.3.3安全系數(shù)..................................................16
6．4集膜部件....................................................16
6.5軸的設(shè)計(jì)計(jì)算................................................16
6．6機(jī)架設(shè)計(jì)....................................................17
6.7直齒圓柱齒輪的計(jì)算..........................................17
設(shè)計(jì)評(píng)價(jià)......................................................19
8.結(jié)束語(yǔ)......................................................... 20
9.參數(shù)文獻(xiàn).......................................................21
10.致謝..........................................................2...
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