一种牵引式草捆拆包粉碎机的设计与试验研究

发布时间：2018-01-06 02:21

本文关键词：一种牵引式草捆拆包粉碎机的设计与试验研究　出处：《内蒙古农业大学》2017年硕士论文　论文类型：学位论文

【摘要】：现阶段,我国畜牧业发展迅速,出现了一些牧草收运设备,但这些设备已经不能满足大规模牧场生产的需要,尤其在草捆拆包及牧草粉碎方面需要更稳定、更高效的设备。为实现草捆拆包与粉碎的机械化和自动化,设计了草捆拆包粉碎机。1.建立整机三维模型。对一款国外草捆拆包粉碎机进行测绘,以其为参考对象,结合草捆成型原理和国内外碎草机的研究现状,综合各种碎草机特点,初步确定整机结构,运用三维软件Solidworks建立整机三维模型并不断改进,基本满足设计要求。(1)机械结构的确定。设计捡拾机构,其可将草捆捡拾并翻转到碎草仓内,设计草捆旋转机构、碎草机构、托草环机构,其相互配合来完成碎草工作,设计挡草帘机构,其可以调整牧草抛撒距离。(2)液压系统的确定。该机整个液压系统主要控制草捆捡拾油缸升降,完成捡拾草捆动作;控制挡草帘升降,来调整碎草抛撒距离;控制托草转子液压马达转动,使草捆旋转。(3)有限元分析。用SolidWorks中simulation插件对重要部件碎草刀进行有限元分析,分析结果显示:碎草刀的安全系数为3.75。2.草捆粉碎试验。用样机进行粉碎草捆试验,试验设计方法为正交试验设计,抓住主要矛盾,提高试验效率。试验数据分析方法为直观分析和方差分析,确定主次因素,确立最优方案。试验结果显示:整机结构设计简单,操作方便,可有效拆包并粉碎草捆,该拆包粉碎机完全符合使用要求,整机捡拾、拆包、碎草动作灵活,经实地实验,该机拆包率100%,牧草粉碎长度可调,最小长度5cm,牧草抛撒距离可调,距离范围1m-10m。
[Abstract]:At this stage, the rapid development of animal husbandry in China, there are some grass collection devices, but these devices have been unable to meet the needs of large-scale farm production, especially in bale unpacking and forage grinding needs more stable and more efficient equipment. In order to realize the bale unpacking mechanization and automation and crushing, design unpacking the bale mill.1. to establish the 3D model of the whole. For a foreign bale unpacking mill for surveying and mapping, as the reference object, combined with the research status at home and abroad and the forming principle of bale straw crushing machine, all kinds of broken grass machine characteristics, determined the overall structure, the use of three-dimensional software Solidworks to build the 3D model of the whole and continuous improvement, basically meet the design requirements. (1) to determine the mechanical structure design. The pickup mechanism, bale pickup and flip to the broken grass inside the warehouse, the design of bale rotation mechanism, a straw crushing mechanism, supporting mechanism of grass ring, Cooperate with each other to complete its work pieces of straw, straw retaining mechanism design, it can adjust the grass throwing distance. (2) to determine the hydraulic system of the machine. The whole hydraulic system main control bale pickup cylinder lifting, pick up bales; control block Caolian lifting, to adjust the broken grass throwing distance control holder; grass rotor hydraulic motor to rotate the rotating bale. (3) the finite element analysis. The finite element analysis of the important parts of the straw crushing knife with SolidWorks simulation plug-in, analysis results show that the safety factor of the straw crushing knife for the 3.75.2. bale grinding test for crushing machine. Bale test, test design method the orthogonal experimental design, to seize the main contradiction, improve the efficiency of the test. The test data analysis method for visual analysis and variance analysis to determine the primary and secondary factors, establish the optimal scheme. Experimental results show that the structure design is simple, easy to operate, can be effective Unpacking and crushing the bales, the disassembly crusher is completely in line with the requirements of use. The whole machine picking up, unpacking and breaking grass is flexible. Field experiments show that the machine's disassembly rate is 100%, the length of grass grit can be adjusted, the minimum length is 5cm, and the distance of forage grass can be adjusted, and the range is 1m-10m..

【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S817.1

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