机械设计制造及其自动化专业精品毕业设计插秧机设计论文

旱地插秧机设计

作者：xxx 专业班级：机械x班指导教师：xx

摘要

我国是个农业大国且人口众多，随着生活水平的提高，农业机械化的进程已经刻不容缓。在水稻、棉花等常规农作物栽培机械化的进程上，我国已经取得了较大的成绩，但是对于一些非常规农作物，特别是珍贵中药材来说，机械化的进程还有很大一段路要走。本课题旨在设计一款主要针对药材种植，同时适用于其它种类农作物的全自动化旱地插秧机。

论文围绕旱地插秧机的设计，针对中药材种植要求，以全自动化为目标，将旱地插秧就分解成自动分苗系统、输苗系统、移栽系统、镇压浇水系统、动力系统五大模块，并逐步完成结构设计、三维建模、组装成形以及运动仿真。最终，以实现拖拉机拖拽前进，盘钵苗自动分苗上秧，秧苗零速差入土，秧苗种植深度、行距、株距可调，苗距稳定不受车速影响、覆土与间歇性浇水等功能。

论文设计了二十余种机构，包括自动分苗系统中的夹苗装置、盘钵进给机构、长行程往复运动机构、提苗机构、输苗系统中的间歇输苗机构、间歇出苗机构、移栽系统中的“零”速移栽机构、鸭嘴自动开口机构、动力系统中的变速机构、镇压机构、间歇浇水机构，镇压轮调节机构等，并对主要机构中的关键零件进行了强度校核。仿真实验表明，该装置可有效的满足在旱地种植药材的工艺要求。

关键词：农业机械自动化秧苗移栽分苗装置运动仿真

The design of dry land transplanter

Abstract

China is a large agricultural country and has a large population, The process of agricultural mechanization has been Brook no delay with the improvement of living standards.It’s done well all over the world in the design of dry land transplanter that only used for some conventional crops cultivation like rice and cotton. But for some unconventional crops, especially as traditional Chinese medicine, the mechanization transplanting still has a long way to go. This project aims to design a unprecedented dry land transplanter that be used to transplant some cherish Chinese herbal medicine.

The basis of the project is the technology of Chinese herb. In order to meet technical requirements, dry land transplanter is decomposed into automatic separate system, transmission system, power system, seedling transplanting system. The subject also has these jobs need to be done that includes the mechanism design, 3d modeling and motion simulation. Finally, the dry land transplanter was done successfully and that has these the following functions: transplant machine is towed by tractors, the seedlings are separated by machine automatically, the instantaneous rate is zero, the seedling planting depth, row spacing is adjustable, watering after transplant.

The paper presents the development direction of agricultural mechanization in china. It’s conducive to changing the status quo, improve the hard power of agricultural machinery industry in china.

Key word：agricultural machinery automation seedling transplanting seedling separate system motion simulation

目录

摘要................................................................ I 目录............................................................ I II 第1章绪论 (1)

1.1 旱地插秧机 (1)

1.2 旱地插秧机的现状及前景 (1)

1.3 本课题主要任务 (3)

第2章旱地插秧机技术要求的确定 (5)

2.1 中草药种植技术要求调研 (5)

2.2 栽植系统技术要求的确定 (5)

2.3 分苗系统技术要求的确定 (6)

2.4 镇压、浇水系统技术要求的确定 (9)

2.5 输送系统技术要求的确定 (9)

2.6 动力系统技术要求的确定 (10)

2.7 本章小结 (10)

第3章分苗系统的设计 (11)

3.1分苗系统设计的意义 (11)

3.2分苗系统设计资料基础 (11)

3.3 分苗系统整体结构设计 (13)

3.4夹苗装置的设计 (13)

3.5 提苗、送苗组件的设计 (22)

3.6齿轮箱的设计 (25)

3.7 盘钵输送链条设计 (29)

3.8 拨动棘轮的设计 (31)

3.9分苗漏斗及夹体的设计 (32)

3.10关键部位工件的强度分析 (34)

3.11分苗系统标准件的使用及总装 (37)