胡蘿卜收獲裝置
Carrots Harvesting Device



目 錄

第一章 基本概況…………………………………………………………………………..…...1
1.1 胡蘿卜生產(chǎn)及種植概況…………………………………………………………………….1
1.1.1 全國胡蘿卜生產(chǎn)概況…………………………………………………………………...1
1.1.2 我國種植情況概況…………………………………………………………………… ..1
1.1.3 國內(nèi)種植農(nóng)藝…………………………………………………………………………...1
1.2 國內(nèi)外胡蘿卜收獲裝置發(fā)展概況……………………………………………………….....2
1.2.1國內(nèi)胡蘿卜收獲裝置發(fā)展概況………………………………………………………....2
1.2.2國內(nèi)胡蘿卜收獲裝置發(fā)展概況……………………………………………………........2
1.3 本課題研究的意義……………………………………………………………………….....3
第二章 胡蘿卜收獲裝置的總體原理及重要部分設(shè)計………………………………...5
2.1 胡蘿卜的生長農(nóng)藝學(xué)特征及收獲要求………………………………………………….....5
2.2 胡蘿卜收獲裝置的整體結(jié)構(gòu)及工作原理……………………………………………….....5
2.2.1整體結(jié)構(gòu)設(shè)計………………………………………………………................................5
2.2.2工作原理……………………………………………………............................................6
2.3 動力選擇…………………………………………………………………………….............6
2.4 松土裝置設(shè)計…………………………………………………………………………….....6
2.5 拔取裝置設(shè)計…………………………………………………………………………….....8
第三章 部分機(jī)構(gòu)的計算及校核……………………………………….................................9
3.1 普通V帶的設(shè)計………………………………………………………………………….. ..9
3.1.1確定設(shè)計功率PC………………………………………………......................................9
3.1.2帶輪選取…………………………………………………...............................................9
3.1.3確定中心距a和帶的基準(zhǔn)長度Ld…………………………………............................ ..9
3.1.4驗算包角………………………………………………...............................................9
3.1.5 確定帶根數(shù)z………………………………………………………………….............10
3.1.5 計算軸壓力Q…………………………………………………………………............10
3.2 軸的設(shè)計與校核...................................................................................................................10
3.2.1軸的材料和熱處理的選擇……………………….........................................................10
3.2.2軸的結(jié)構(gòu)設(shè)計.........……………………………………………………………............10
3.2.3軸的強(qiáng)度校核………………………………………………………………….............10
3.3 軸承的選擇與校核...............................................................................................................12
3.4 鍵的選擇與校核...................................................................................................................12
結(jié)論………………………………………………………………………………………….........13
致謝……………………………………………………………………………………………….15
參考文獻(xiàn)…………………………………………………………………………………………16


胡蘿卜收獲裝置

摘要 目前，我國在蘿卜類作物的收獲方面大多數(shù)仍然采用人工作業(yè)的方式，收獲時勞動強(qiáng)度比較大，既費時又費力，生產(chǎn)率低，給農(nóng)民帶來了極大的不便，勞動力短缺已經(jīng)成為日益突出的問題。目前雖有個別蘿卜收獲裝置的專利技術(shù)產(chǎn)品，但主要屬于挖掘犁類，存在體積大、能耗大、成本較高、挖凈率低、損失率大等問題，這種大型裝置對于農(nóng)民來說又是一筆很大的投資。因此，我們需要設(shè)計體積小，制造成本低的蘿卜收獲裝置，以提高農(nóng)民的生所以研究該胡蘿卜收獲裝置有著重要的意義。

關(guān)鍵詞 胡蘿卜 蘿卜類 根類作物 收獲裝置



Carrots Harvesting Device
Abstract At present,the radish crop harvests are most still used by manual operation in China.At harvest,labor intensity is relatively large,both laborious and time-consuming. These bring many great inconvenience to farmers.And labor shortages have become an increasingly prominent issue.Although there are many individual patented technologies of radish harvest device currently.But they mainly belong to the mining plow,having the existence of bulky, energy consumption, high cost, low dug net loss rate is high and other issues.Such large-scale installations for farmers is a great investment.Therefore,we need to design small size, low manufacturing cost radish harvesting device to improve farmers' productivity and reduce their production costs.So the carrot harvesting device research has important significance.

Key words carrots,radish root crops,harvesting device