本文選題：堤坡防護(hù)　切入點(diǎn)：牛糞拾取機(jī)　出處：《湖北工業(yè)大學(xué)》2017年碩士論文

【摘要】：本課題研究設(shè)計(jì)了一種機(jī)械化的堤坡牛糞拾取機(jī)。該拾取機(jī)通過(guò)發(fā)動(dòng)機(jī)驅(qū)動(dòng)運(yùn)動(dòng)平臺(tái)行走,并帶動(dòng)集糞機(jī)構(gòu)中的螺旋刮板推擠與刮取堤坡上的牛糞,通過(guò)拋糞筒將牛糞輸送至儲(chǔ)糞裝置中,完成牛糞的拾取工作,由于牛糞拾取機(jī)是在堤坡(坡比約為1:3)上進(jìn)行拾取作業(yè),應(yīng)盡可能的降低車(chē)身重心,保證機(jī)器的穩(wěn)定性。螺旋刮板刀具與車(chē)架是堤坡牛糞拾取機(jī)的兩個(gè)重要組成部分。本文重點(diǎn)設(shè)計(jì)了螺旋刮板刀具和車(chē)架,對(duì)螺旋刮板刀具的結(jié)構(gòu)優(yōu)化,并對(duì)其進(jìn)行瞬態(tài)、模態(tài)的有限元分析,驗(yàn)證設(shè)計(jì)是否滿足設(shè)計(jì)要求。主要研究?jī)?nèi)容如下:本文首先介紹了堤坡牛糞拾取機(jī)的工作原理、總體設(shè)計(jì)方案與具體設(shè)計(jì)方案,介紹了牛糞的物理機(jī)械性能參數(shù),為相關(guān)計(jì)算提供理論依據(jù)。從理論方面重點(diǎn)分析了螺旋刮板刀具參數(shù)對(duì)功耗和拾取效率影響程度,根據(jù)已設(shè)計(jì)出螺旋刮板刀具模型,運(yùn)用建立數(shù)學(xué)模型的方法,對(duì)螺旋刮板刀具進(jìn)行了結(jié)構(gòu)優(yōu)化,優(yōu)化后螺旋刮板刀具的質(zhì)量減輕了6.2kg;利用有限元分析方法,進(jìn)一步對(duì)優(yōu)化后的刀具進(jìn)行有限元分析,優(yōu)化刀具的厚度,降低螺旋刮板刀具的整體重量。驗(yàn)證了螺旋刮板刀具滿足設(shè)計(jì)要求。對(duì)堤坡牛糞拾取機(jī)的車(chē)架進(jìn)行理論設(shè)計(jì),得出了設(shè)計(jì)參數(shù),繪制了車(chē)架的三維模型及有限元分析模型,對(duì)車(chē)架做了靜力分析以及模態(tài)分析,提取分析結(jié)果,證明車(chē)架滿足強(qiáng)度和剛度要求,車(chē)架在進(jìn)行拾取作業(yè)時(shí)不會(huì)發(fā)生共振現(xiàn)象。根據(jù)分析結(jié)果,進(jìn)一步優(yōu)化車(chē)架鋼管的厚度,達(dá)到降低車(chē)架重量的目的,最終降低了整機(jī)的重量,節(jié)約了制造成本。通過(guò)對(duì)螺旋刮板刀具及車(chē)架的設(shè)計(jì)分析,對(duì)樣機(jī)進(jìn)行了局部的試驗(yàn),為整機(jī)研發(fā)奠定基礎(chǔ)。
[Abstract]:A mechanized levee cow dung pick-up machine is designed in this paper. The pick up machine drives the moving platform through the engine, and drives the screw scraper in the dung collecting mechanism to push out and scrape the cow dung on the slope of the embankment. The cow dung is transported to the dung storage device through the dung dump to complete the picking up of the cow dung. As the picking up machine is carried out on the levee slope (the slope ratio is about 1: 3), the gravity center of the body should be reduced as much as possible. To ensure the stability of the machine, the helical scraper cutter and the frame are two important parts of the cow dung pick-up machine on the embankment slope. In this paper, the helical scraper cutter and the frame are designed, the structure of the screw scraper tool is optimized, and the structure of the screw scraper tool is transient. Modal finite element analysis to verify whether the design meets the design requirements. The main research contents are as follows: firstly, this paper introduces the working principle, the overall design scheme and the specific design scheme of the levee cow dung pickup machine. The physical and mechanical parameters of cow dung are introduced in this paper, which provides theoretical basis for relevant calculation. The influence of cutting tool parameters of screw scraper on power consumption and picking efficiency is analyzed in theory, and the cutting tool model of screw scraper is designed. The method of establishing mathematical model is used to optimize the structure of the spiral scraper cutter, and the quality of the screw scraper cutter is reduced by 6.2 kg after the optimization, and the finite element analysis method is used to further analyze the optimized cutting tool. The thickness of the cutting tool is optimized and the overall weight of the screw scraper tool is reduced. It is verified that the screw scraper tool meets the design requirements. The theoretical design of the frame of the cow dung pickup machine on the embankment slope is carried out, and the design parameters are obtained. The three-dimensional model and finite element analysis model of the frame are drawn, the static analysis and modal analysis of the frame are made, the results of the analysis are extracted, and it is proved that the frame meets the requirements of strength and stiffness. According to the analysis results, the thickness of the steel tube of the frame is further optimized to reduce the weight of the frame, and finally the weight of the whole frame is reduced. Through the design and analysis of the screw scraper tool and the frame, the partial test of the prototype was carried out, which laid the foundation for the research and development of the whole machine.
【學(xué)位授予單位】：湖北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：S817

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 鞏少倩;盧云博;;莫讓糞尿成為奶牛小區(qū)的“負(fù)擔(dān)”[J];北方牧業(yè);2014年03期

2 任潤(rùn)國(guó);尉慶國(guó);樊卓聞;;基于hypermesh的發(fā)動(dòng)機(jī)零部件網(wǎng)格劃分[J];內(nèi)燃機(jī)與配件;2014年01期

3 丁志寶;文學(xué)洙;;基于ABAQUS的某車(chē)架結(jié)構(gòu)的模態(tài)分析[J];延邊大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年03期

4 周健;郭世永;王保光;;復(fù)雜模型的有限元分析方法[J];機(jī)械研究與應(yīng)用;2013年03期

5 宋榮;;基于ANSYS Workbench的某新型吹雪車(chē)車(chē)架模態(tài)分析[J];機(jī)械工程與自動(dòng)化;2013年03期

6 孫智慧;張友志;金向陽(yáng);;集雪器螺旋葉片的結(jié)構(gòu)參數(shù)優(yōu)化及動(dòng)力特性[J];哈爾濱商業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年03期

7 鄧澤涵;范正帥;殷行山;;基于ABAQUS的FSAE賽車(chē)車(chē)架有限元分析[J];機(jī)電技術(shù);2013年02期

8 丁志寶;文學(xué)洙;;基于ABAQUS的某車(chē)架靜態(tài)結(jié)構(gòu)強(qiáng)度的有限元分析[J];機(jī)械工程師;2013年04期

9 王鐵流;郭曉梅;陳仙明;;螺旋輸送機(jī)螺旋體優(yōu)化設(shè)計(jì)[J];浙江水利水電�？茖W(xué)校學(xué)報(bào);2012年03期

10 劉什敏;;雙能γ射線穿透法測(cè)定土壤密度和水含量的蒙特卡羅模擬[J];核電子學(xué)與探測(cè)技術(shù);2012年09期

相關(guān)博士學(xué)位論文 前1條

1 魚(yú)小軍;牦牛糞維系青藏高原高寒草地健康的作用機(jī)制[D];甘肅農(nóng)業(yè)大學(xué);2010年

相關(guān)碩士學(xué)位論文 前8條

1 蘇國(guó)棟;小型螺旋式除雪車(chē)螺旋刀具和車(chē)架的設(shè)計(jì)與有限元分析[D];中北大學(xué);2014年

2 鄧全得;螺旋壓榨機(jī)螺旋的有限元分析[D];西北農(nóng)林科技大學(xué);2013年

3 周波;雙軸立式螺旋開(kāi)溝機(jī)工作部件切土性能研究[D];華中農(nóng)業(yè)大學(xué);2012年

4 薛學(xué)彪;單前輪導(dǎo)向單后輪驅(qū)動(dòng)籬架型噴霧車(chē)車(chē)架有限元分析及結(jié)構(gòu)優(yōu)化[D];揚(yáng)州大學(xué);2011年

5 袁海峰;葉輪葉片振動(dòng)模態(tài)分析與實(shí)驗(yàn)研究[D];武漢理工大學(xué);2010年

6 黃振邦;新型微型電動(dòng)車(chē)底盤(pán)設(shè)計(jì)及操縱穩(wěn)定性分析[D];武漢理工大學(xué);2008年

7 張東海;螺旋輸送機(jī)的優(yōu)化研究[D];大連理工大學(xué);2006年

8 陶恩樹(shù);太陽(yáng)能電動(dòng)車(chē)車(chē)架設(shè)計(jì)及理論分析[D];南京理工大學(xué);2004年

，

本文編號(hào)：1682115