【正文】 桂林電子科技大學畢業(yè)設計 （論文）報告用紙 Abstract Waters such as rivers,ponds are generally with narrow waterway and small area,so general large aquatic weed harvesters can hardly harvest eliminate the current phenomenon, smaller aquatic weed harvester is designed in this has pact structure, smooth transmission and high efficiency ， at the same time ， it is suitable for working in the small and medium waters. This article summarizes the development background,research status and classification of the aquatic weed harvester.； the mechanism design of underwater part of the aquatic weed harvesters, including clear anization and positioning mechanism,is pleted； the paper describes the overall design, working principle, parameter calculation and experimental check of front reciprocating cutter and rotating lift； meanwhile, in order to prevent secondary pollution, the paper also designs of the recovery agencies, the aquatic weeds will be shipped back to the hull through the conveyor belt； what’s more,the study also finishes the work of the main device assembly parts , this paper’s simulation result proves the rationality of the design with the animation of the software Solidworks. The results show that: the smaller aquatic weed harvester has many advantages of reasonable and pact structrue, high adaptability and high efficiency to new aquatic weed harvesters can realize continuous integration mode such as harvesting,collecting and transmiting under can achieve the goal to clear the flood hydrophytes and to purify water quality. In all,it is an ideal machine of harvesting aquatic weeds. Key words： small aquatic weed harvester； underwater mechanism design； animated simulation 桂林電子科技大學畢業(yè)設計 （論文）報告用紙 目 錄 引言 ................................................................................................................... 1 1 緒論 ............................................................................................................. 1 課題研究背景 ..................................................................................................................... 1 水草收割機的發(fā)展過程 ..................................................................................................... 2 水草收割機分 類及特點 ..................................................................................................... 2 根據(jù)切割器工作方式劃分 .............................................................................................. 2 根據(jù)切割器在船體的安裝位置分 .................................................................................. 3 根據(jù)作業(yè)方式分 .............................................................................................................. 3 根據(jù)作業(yè)對象劃分 .......................................................................................................... 3 水下機構的典型特點 ......................................................................................................... 3 課題研究的目的及意義 ..................................................................................................... 4 2 水下機構的方案選擇及總體結構設計 ....................................................... 5 水下機構的方案選擇 ......................................................................................................... 5 機構總體設計 ..................................................................................................................... 5 3 清除機構的設計 .......................................................................................... 6 切割器概述 ......................................................................................................................... 6 往復式切割器的構造及類型 ............................................................................................. 7 往復式切割器的構造 ...................................................................................................... 7 往復式切割器的類型 .................................................................................................... 10 往復式切割器的驅動機構及原理 ................................................................................... 10 驅動機構的選擇 ............................................................................................................ 10 驅動機構的工作原理 .................................................................................................... 11 驅動機構的設計 ............................................................................................................ 11 往復式切割器的調(diào)整 ....................................................................................................... 13 4 定位機構的設計 ........................................................................................ 13 定位機構的組成 ............................................................................................................... 13 定位機構的工作原理 ....................................................................................................... 14 鏈傳動的設計 ................................................................................................................... 14 鏈傳動簡介 .................................................................................................................... 14 鏈傳動的選擇及設計校核 ............................................................................................ 15 軸的結構設計 ................................................................................................................... 17 桂林電子科技大學畢業(yè)設計 （論文）報告用紙 軸的應用與分類 ............................................................................................................ 17 軸的材料及 結構