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舵輪氣吸式精量穴播器設計
專業(yè)班級：07機制1班 學生姓名：李予魯
指導教師：王霞 職 稱：講 師
摘要 本文主要討論的是一種精量穴播器的載插機構，該穴播器主要應用于煙苗、玉米、甜菜、茄子、蕃茄、棉花等作物的田間移栽作業(yè)。根據(jù)作物育苗移栽的農(nóng)藝要求,在分析了國內外眾多穴播器的基礎上,優(yōu)化設計了適合缽苗移栽的機械的關鍵部件,分析研究了機械栽苗的一般規(guī)律,找出了影響栽苗效果的若干因素,確定了工作部件的主要參數(shù)。
該機構的創(chuàng)新點是采用了曲柄連桿機構作為穴播器的投苗機構。由于條件限制,實踐方面有待進一步的加強,進行進一步的檢驗、分析、再設計,使所設計的煙苗穴播器械達到較好的工作性能指標和工作可靠性的要求,但最為重要的是一定要滿足農(nóng)業(yè)生產(chǎn)的要求—農(nóng)藝要求。
移栽部件的運動分析是穴播器設計的基礎，在建立缽苗運動數(shù)學模型的前提下，運用Inventor建立實體模型，創(chuàng)建組件連接，在Inventor中對移栽部件進行模擬仿真，并對其關鍵點與建立的數(shù)學模型進行比較，對移栽部件參數(shù)進行優(yōu)化。
關鍵詞: 穴播器； 曲柄連桿機構； 投苗機構.
Small bowl transplanting seedlings into the onboard computer-aided analysis
Abstract In the thesis, we discuss the seedling launching mechanism of a planter which are applied in transplanting of baccy、corn、beet、eggplant、tomato、cotton ...etc. According to the requirement for agronomy transplantation to grow seedlings, we have found a good method to the ones that are suitable for the baccy nutrition bowl and grow seedlings and transplant in optimization design on the foundation of analyzing numerous transplanting machines both at home and abroad, and through the investigation of the result of the homework, we have analyzed and researched the universal law of the plant shoots in machinery and found some factors that affect the result of plant shoots.
The crank and rocker mechanisms are applied to the seedling launching mechanism. Because the terms is limited, in practice, the aspect treats to further enhance, examination proceeding further, analyze, then design, make a cotton for designing planter attain the good work function index sign and work dependable and reliability, but the most important must satisfy the agriculture produce of request.
Based on analysis of transplanting parts movement, through development of mathematical model describing seedling moving procedure, the entity of transplanting parts were established with software Inventor, and connections of the parts were created. Simulation of planter working procedure was carried out and moving track was set up for study of planter key points in comparison with mathematical model, so the optimum parameters for transplanting parts were obtained.
Key words: planter; crank and rocker mechanisms; seedling launching mechanism.