完整版（2022年）圆盘式割草机的设计本科毕业设计.docx

圆盘式割草机的设计完整版（2022年）圆盘式割草机的设计摘 要牧草收割是草产业生产中的一个重要环节， 提高牧草收割机械化水平和生产率， 对于确保草产业丰收极为重要 切割器是各种牧草收割机械的重要工作部件， 目前，各种牧草收割机械普遍采用的切割器有往复式和回转式两种 回转式切割机属无支承切割， 不产生堵塞现象，更换刀片简易本次设计的双圆盘式割草机， 选用回转式切割器， 对牧草的适应性强，特别适应于稠密、倒伏和缠连的牧草，工作平稳，生产率高 设计的双圆盘割草机有以下几个特点 :一、该机具由小四轮拖拉机前悬挂作业，主要有挂接、升降、传动、切割等机构组成，设计简单，结构紧凑 ;二、本机具的升降由拖拉机液压手柄操纵，通过升臂、钢丝绳、滑轮等机构提升拉杆，完成机具的水平升降 ;三、动力由拖拉机飞轮传递， 机具皮带轮布置在两个齿轮箱中间，两个皮带轮处在同一个平面内，结构更紧凑 ;四、机具前端设置了防护栏和防护罩，刀盘制作成碟形，使刀片旋转时与地面成一定角度，且脱落或飞出时不致伤人，安全可靠本次设计主要完成了圆盘式割草机的总体方案的选型， 切割器的总体设计，传动系统的设计，主要零部件的设计与校核1关键词: 圆盘切割器；牧草；收割机Design of double —disk cutter with rotary cutterAbstractGrazing harvesting is an important Part of the Production of grass industry, improving forage harvesting mechanization level and Productivity is vital to ensure the grass industry abundant harvest. The cutter is important working Part ofvarious harvesting machinery. At Present ，various forageharvesting machinery commonly use two kinds of cutter bar--- reciprocating and rotary. The rotary cutting machine without support cutting and there is no Plugging Phenomenon and replacing blade easily.This topic researches and designs double —disk cutter withrotary cutter, the adaptability of forage, particularlyadapted to the dense, lodging and even wrapped around the grass ，working stably, output highly.In this paper, researches and analyses foreign forage grasses harvester, using the principle and method of machinedesign ,the optimal design of machine ，the development of thedouble--- disk grass cutter has innovation spots as following:1. The machine with a small four-wheel tractor hangingbefore it. Mainly including the of hoist 、articulate 、movemen、ttransmission 、 cutting and other agencies with simple design 、compact structure 、strong adaptability and low cost.2. Lift of the machine is controlled by hydraulic handleof the tractor, through the lifting---arm ， steel rope, Pulley and so on achieving the lifting horizontally.3. Power transmission depends on the flywheel of the tractor. There two strap Pulleys between the two gear-boxes, and the two straps Pulleys are Placed on the same Plane withmore compact structure.4. There are fencing and Protective mask at the foreside of the machine, and the blade was made into the shape as dishso that the blade rotating at a certain angle on the ground,and fly safely and reliably off without wounding.In this Paper analysis ’s and tests the force of thePrincipal transmission Parts. By doing Experiments, we know the machine has the characteristics of strong applicability 、reasonable structure 、excellent capability 、high Productivity and so on.Keywords: Double — disk cutter: grazing; harvester目录圆盘式割草机的设计 ....................................... 1摘 要 .................................................... 11 割草机相关背景 ......................................... 71.1 研究背景 ............................................ 71.2 我国割草机的研究现状 ................................ 71.2.1 割草机的组成 .................................... 71.2.2 割草机的分类 .................................... 81.3 割草机的发展方向 ................................... 121.4 本设计的目的、要求和意义 ........................... 132 双圆盘割草机总体设计 . .................................. 152.1 本设计需要解决的技术问题 . .......................... 152.2 收获对象对机械性能的要求 ........................... 152.3 总体设计原则 ....................................... 152.4 要求达到的技术参数 ................................. 162.5 总体参数的确定 ..................................... 162.6 总体方案的确定 ..................................... 173 旋转式切割器的设计 .................................... 213.1 割刀运动分析 ....................................... 213.2 割刀转速的确定 ..................................... 233.3 刀片数的确定 ....................................... 243.4 刀片伸出高度 h ..................................... 243.5 切割器主体部分设计 ................................. 254 主要工作部件的方案选择及相关参数的确定 ................ 194.1 传动系统总体方案的确定 ............................. 194.2 动力参数设计 ....................................... 194.2.1 传动比分配 ..................................... 194.2.2 功率消耗 .......................................204.2.3v 带传动设计 ....................................314.3 四连杆挂接机构设计 ................................22总结 ....................................................24参考文献 ................................................25致谢 ....................................................261 割草机相关背景扣扣 1269408632全套 CAD图纸共二十多张1.1 研究背景生存环境和经济发展是我国可持续发展的重要战略， 而草业的发展在其中起着至关重要的作用。

由于种种自然和人为因素， 我国大部分的草地已经濒临或已经退化 国家把调整农业结构、 大力发展退耕还林还草、改善生态环境作为国家的重要方略近些年，随着政策的 落实和措施的改进， 草产业已呈现出高速发展的态势， 种植面积不断扩大，收获效果甚丰但是牧草收割中仍然存在着许多问题，如牧草 收割以人工为主，工作效率低下，劳动强度大，作业成本高等诸多问 题而牧草收割类机械发展相对国外先进水平来说略显低下， 一些高端作业机械方面仍然是一片空白 因此，为了适应草产业发展的需要， 急需一种成本低效率高的机械收割机，高科技割草机应运而生1.2 我国割草机的研究现状1.2.1 割草机的组成传统的割草机主要由机架、传动机构。