A0装配图
番茄苗期株间除草机结构设计与分析
摘要
为了保护环境，促进自动化农业和绿色可持续发展，本文设计了一种适用于番茄苗期的株间除草机。本文在对国内外除草机械研究现状分析的基础上，根据田间除草的任务要求，提出了除草机的整体设计方案。株间除草机大体包括移动平台和除草机构两部分。重点设计移动平台的传动系统与转向机构，通过对除草过程进行作业分析确定移动平台采用逐行往返式作业模式，为实现在农田间稳步向前行走设计一套传动系统，为解决除草设备在农田间的转向问题设计一套梯形转向结构。根据植株行距株距、幼苗高度等确定自走式车辆本体的主要技术参数，通过理论分析确定转向机构的结构参数。为实现精准化除草作业，采用Delta并联机构作为主要除草部件，保证除草精度。通过对并联机构进行运动学分析，确定其主要尺寸参数，再对执行器末端进行空间模拟验证其参数是否满足除草作业要求。
关键词：株间除草；并联机构；梯形转向机构
中文摘要
英文摘要
Structure Design and Analysis of Interplant Weeding Machine in Tomato Seedling Stage
Abstract
In order to protect the environment, promote automated agriculture and green sustainable development, this paper designs an interplant weeder suitable for tomato seedlings. Based on the analysis of the research status of weeding machinery at home and abroad, this paper puts forward the overall design plan of the weeding machine according to the task requirements of field weeding. The inter-plant weeder generally includes two parts: a mobile platform and a weeding mechanism. Focus on the design of the transmission system and steering mechanism of the mobile platform. Through the operation analysis of the weeding process, it is determined that the mobile platform adopts a row-by-row reciprocating operation mode. A transmission system is designed to achieve steady progress in the farmland, and to solve the problem of the weeding equipment in the farmland. Design a set of trapezoidal steering structure. The main technical parameters of the self-propelled vehicle body are determined according to the plant row spacing, seedling height, etc., and the structural parameters of the steering mechanism are determined through theoretical analysis. In order to achieve precise weeding operations, the Delta parallel mechanism is used as the main weeding component to ensure the accuracy of weeding. Through the kinematic analysis of the parallel mechanism, the size parameters of the parallel mechanism are determined, and then the space simulation of the end of the actuator is performed to verify whether the parameters meet the requirements of the weeding operation.
Key words: weeding among plants; Parallel mechanism; Trapezoidal steering mechanism
目录
1绪论1
1.1研究背景及意义1
1.2国外研究现状2
1.3国内研究现状4
1.4现状分析6
2技术任务书7
2.1研究内容7
2.2技术路线8
3总体设计方案9
3.1移动方式的选择9
3.2传动系统设计10
3.3除草机构的选择12
4转向系统设计13
4.1转向方案的确定13
4.2转向梯形参数的确定14
4.3步进电机的选择15
4.4齿轮齿条的计算16
5.并联机构设计及空间分析25
5.1并联机构设计25
5.2空间分析28
5.3末端执行装置29
6总结与展望30
6.1结论30
6.2创新点30
6.3展望30
参考文献31
致谢33
主动臂A4
动平台A3
后电机架A3
字数
并联机构连接板1A4
并联机构连接板2A4
摘要
梯形臂A4
目录
设计所包含文件
车轮A2
转向横拉杆A4
转向节臂A4
静平台A3
齿条A3
齿条滑槽A3
