4LZ-1200型水稻聯(lián)合收割機撥禾機構(gòu)設(shè)計

[摘要]:我國是農(nóng)業(yè)大國，水稻生產(chǎn)機械化對水稻種植至關(guān)重要，水稻聯(lián)合收割機是實現(xiàn)水稻收割機械化的重要工具，而水稻聯(lián)合收割機小型化、微型化是在南方山區(qū)、丘陵地區(qū)實現(xiàn)農(nóng)業(yè)機械化的關(guān)鍵。因此，研究小型水稻聯(lián)合收割機具有重要的現(xiàn)實意義。
本文分析了現(xiàn)有的聯(lián)合收割機在南方山區(qū)、丘陵地區(qū)使用時存在的問題，對聯(lián)合收割機的偏心撥禾輪的功率耗用作了較深的研究，研究開發(fā)具有自主知識產(chǎn)權(quán)的4LZ—1200型全喂入水稻聯(lián)合收割機。
首先，采用特殊的全喂入脫粒形式，將現(xiàn)有聯(lián)合收割機的割臺、輸送、脫粒機三大部分簡化一體，大大地簡化聯(lián)合收割機的結(jié)構(gòu)，從而使聯(lián)合收割機小型化、微型化。
實驗證明，本文設(shè)計的4LZ—1200型全喂入水稻聯(lián)合收割機的各項性能指標(biāo)均達(dá)到或超過了國家標(biāo)準(zhǔn)。

[關(guān)鍵詞]：全喂入水稻聯(lián)合收割機;撥禾機構(gòu);

Design poking grain mechanism of 4LZ-1200 Combine harvester

[ABSTRACT]The mechanization for harvesting rice crop products is very important in our country, a large agricultural country. The combine is one of main tools to achieve mechanization for harvesting rice crop product. In southern mountainous area and hilly area, the micro and mini combines play important role for harvesting grain products. So it is worth to study the mini combine.
In this paper, some existing problems with using combines in southern mountainous area and hilly area were analyzed. And the eccentric poking grain wheel of the thresher of the combine have been researched deeply. A 4LZ-1200 Entire-feed-carrier combine harvester with self-copyright for grain crop has also been studied.
Firstly, the three parts of the combine, cutting, transporting and threshing parts, were simplified into account by adopting special Entire feed carrier threshing style, and largely simplified the structure of the combine, thereby make it become micro and mini.
The experiment results showed that the target aim of 4LZ—1200 Entire-feed-carrier combine have been reached or even exceeded the national criterion. The product has gained the state patent.

[KEYWORDS] Entire-feeding combine; poking grain mechanism
 
目錄
第一章 緒論 1
1.1我國水稻生產(chǎn)概況 1
1. 2全喂入水稻聯(lián)合收割機的現(xiàn)狀和發(fā)展趨勢 1
1.2.1水稻收獲機械的發(fā)展慨況 1
1.2.2國內(nèi)外全喂入水稻聯(lián)合收割機的現(xiàn)狀及發(fā)展趨勢 2
1.3小型全喂入水稻聯(lián)合收割機的研究意義 4
1.3.1在中國農(nóng)村現(xiàn)實經(jīng)濟條件下引進(jìn)國外產(chǎn)品的困難 4
1.3.2國內(nèi)全喂入水稻聯(lián)合機的不足 4
1.3.3小型全喂入水稻聯(lián)合收割機的研究意義 5
第二章 偏心撥禾輪機構(gòu)的分析 7
2. 1引言 7
2.2偏心撥禾輪機構(gòu)結(jié)構(gòu)設(shè)計 7
2.3撥禾輪的工作原理 9
2. 3.1 撥板的運動分析 9
2.3.2撥禾輪正常工作的條件 10
2.3.3撥禾輪工作過程 10
2.4撥禾輪主要性能參數(shù)的確定 11
2.4.1撥禾輪的轉(zhuǎn)速 11
2.4.2撥禾輪的直徑 12
2.4.3撥禾輪的作用程度 13
2.4.4撥禾輪的功率消耗 14
第三章 總結(jié) 15
致謝 16
[參考文獻(xiàn)] 17