胡萝卜收获装置.doc
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胡萝卜收获装置,carrots harvesting device目录第一章 基本概况.....11.1 胡萝卜生产及种植概况.11.1.1 全国胡萝卜生产概况...11.1.2 我国种植情况概况..11.1.3 国内种植农艺...11.2 国内外发展概况.....21.2.1国内发展概况.....
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胡萝卜收获装置
Carrots Harvesting Device
目 录
第一章 基本概况…………………………………………………………………………..…...1
1.1 胡萝卜生产及种植概况…………………………………………………………………….1
1.1.1 全国胡萝卜生产概况…………………………………………………………………...1
1.1.2 我国种植情况概况…………………………………………………………………… ..1
1.1.3 国内种植农艺…………………………………………………………………………...1
1.2 国内外胡萝卜收获装置发展概况……………………………………………………….....2
1.2.1国内胡萝卜收获装置发展概况………………………………………………………....2
1.2.2国内胡萝卜收获装置发展概况……………………………………………………........2
1.3 本课题研究的意义……………………………………………………………………….....3
第二章 胡萝卜收获装置的总体原理及重要部分设计………………………………...5
2.1 胡萝卜的生长农艺学特征及收获要求………………………………………………….....5
2.2 胡萝卜收获装置的整体结构及工作原理……………………………………………….....5
2.2.1整体结构设计………………………………………………………................................5
2.2.2工作原理……………………………………………………............................................6
2.3 动力选择…………………………………………………………………………….............6
2.4 松土装置设计…………………………………………………………………………….....6
2.5 拔取装置设计…………………………………………………………………………….....8
第三章 部分机构的计算及校核……………………………………….................................9
3.1 普通V带的设计………………………………………………………………………….. ..9
3.1.1确定设计功率PC………………………………………………......................................9
3.1.2带轮选取…………………………………………………...............................................9
3.1.3确定中心距a和带的基准长度Ld…………………………………............................ ..9
3.1.4验算包角………………………………………………...............................................9
3.1.5 确定带根数z………………………………………………………………….............10
3.1.5 计算轴压力Q…………………………………………………………………............10
3.2 轴的设计与校核...................................................................................................................10
3.2.1轴的材料和热处理的选择……………………….........................................................10
3.2.2轴的结构设计.........……………………………………………………………............10
3.2.3轴的强度校核………………………………………………………………….............10
3.3 轴承的选择与校核...............................................................................................................12
3.4 键的选择与校核...................................................................................................................12
结论………………………………………………………………………………………….........13
致谢……………………………………………………………………………………………….15
参考文献…………………………………………………………………………………………16
胡萝卜收获装置
摘要 目前,我国在萝卜类作物的收获方面大多数仍然采用人工作业的方式,收获时劳动强度比较大,既费时又费力,生产率低,给农民带来了极大的不便,劳动力短缺已经成为日益突出的问题。目前虽有个别萝卜收获装置的专利技术产品,但主要属于挖掘犁类,存在体积大、能耗大、成本较高、挖净率低、损失率大等问题,这种大型装置对于农民来说又是一笔很大的投资。因此,我们需要设计体积小,制造成本低的萝卜收获装置,以提高农民的生所以研究该胡萝卜收获装置有着重要的意义。
关键词 胡萝卜 萝卜类 根类作物 收获装置
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
Carrots Harvesting Device
目 录
第一章 基本概况…………………………………………………………………………..…...1
1.1 胡萝卜生产及种植概况…………………………………………………………………….1
1.1.1 全国胡萝卜生产概况…………………………………………………………………...1
1.1.2 我国种植情况概况…………………………………………………………………… ..1
1.1.3 国内种植农艺…………………………………………………………………………...1
1.2 国内外胡萝卜收获装置发展概况……………………………………………………….....2
1.2.1国内胡萝卜收获装置发展概况………………………………………………………....2
1.2.2国内胡萝卜收获装置发展概况……………………………………………………........2
1.3 本课题研究的意义……………………………………………………………………….....3
第二章 胡萝卜收获装置的总体原理及重要部分设计………………………………...5
2.1 胡萝卜的生长农艺学特征及收获要求………………………………………………….....5
2.2 胡萝卜收获装置的整体结构及工作原理……………………………………………….....5
2.2.1整体结构设计………………………………………………………................................5
2.2.2工作原理……………………………………………………............................................6
2.3 动力选择…………………………………………………………………………….............6
2.4 松土装置设计…………………………………………………………………………….....6
2.5 拔取装置设计…………………………………………………………………………….....8
第三章 部分机构的计算及校核……………………………………….................................9
3.1 普通V带的设计………………………………………………………………………….. ..9
3.1.1确定设计功率PC………………………………………………......................................9
3.1.2带轮选取…………………………………………………...............................................9
3.1.3确定中心距a和带的基准长度Ld…………………………………............................ ..9
3.1.4验算包角………………………………………………...............................................9
3.1.5 确定带根数z………………………………………………………………….............10
3.1.5 计算轴压力Q…………………………………………………………………............10
3.2 轴的设计与校核...................................................................................................................10
3.2.1轴的材料和热处理的选择……………………….........................................................10
3.2.2轴的结构设计.........……………………………………………………………............10
3.2.3轴的强度校核………………………………………………………………….............10
3.3 轴承的选择与校核...............................................................................................................12
3.4 键的选择与校核...................................................................................................................12
结论………………………………………………………………………………………….........13
致谢……………………………………………………………………………………………….15
参考文献…………………………………………………………………………………………16
胡萝卜收获装置
摘要 目前,我国在萝卜类作物的收获方面大多数仍然采用人工作业的方式,收获时劳动强度比较大,既费时又费力,生产率低,给农民带来了极大的不便,劳动力短缺已经成为日益突出的问题。目前虽有个别萝卜收获装置的专利技术产品,但主要属于挖掘犁类,存在体积大、能耗大、成本较高、挖净率低、损失率大等问题,这种大型装置对于农民来说又是一笔很大的投资。因此,我们需要设计体积小,制造成本低的萝卜收获装置,以提高农民的生所以研究该胡萝卜收获装置有着重要的意义。
关键词 胡萝卜 萝卜类 根类作物 收获装置
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