毕业设计论文-水田除草机苗间除草装置的设计与仿真精选.docxVIP

水田除草机苗间除草装置的设计与仿真 PAGE \* MERGEFORMAT III水田除草机苗间除草装置的设计仿真摘 要长期以来在水田苗间的除草都依靠化学除草剂或人力完成，即使借助某些专用工具，仍然劳动强度大，工作效率底，而且使得土壤的土质受到极大的影响使土壤硬化，肥力下降。到目前水稻苗间的除草机械还比较少，虽然其他国家有除草机械但是不适应我国的水田，有些国家的水田除草机械还对我国禁售。为了解决水田苗间除草的劳动强度大、农时紧的问题；提高作业质量，可以一次性完成水田机械除草，而不用化学除草剂。推进水稻生产机械化，提高水稻生产机械化，加强水稻综合生产能力建设，研制一种高效的水田苗间除草装置是很有必要的。本文主要研究苗间除草机的关键部件，针对水稻生长过程中，水稻根部入土深度明显大于杂草根深的特点。采用理论分析，模拟仿真相结合的方法，对苗间除草机的机理与参数进行研究。为苗间除草设备与水田除草机械的研发提供了科学依据和方法。本文主要研究了除草装置的结构设计。除草装置包括动力装置、动力传递部分，除草轮。并运用Pro/ENGINEER Wildfire 5.0软件的动态仿真清楚观察机构的特点。观察苗间除草装置的三维模型，了解机构的工作情况。关键词 : 除草机，苗间除草，行间除草，仿真AbstractFor a long time weeding between the paddy seedlings rely on chemical herbicides or manpower to complete, even with the help of some special tools, is still labor-intensive end of the working efficiency, but also makes the soil of the soil to be greatly affected soil hardening, and fertility decline.Rice seedlings, weeding mechanical relatively small, although other countries are weeding machinery, but not suited to Chinas paddy, paddy field weeding machinery in some countries of Chinas ban.In order to solve the problems of paddy seedlings weeding is labor-intensive farming season tight; improve the quality of work, you can complete the one-time paddy machinery weeding, instead of chemical herbicides.It is necessary to promote the mechanization of rice production, rice production mechanization, strengthen rice production and capacity-building, development of an efficient paddy seedlings weeding device.This paper studies the key components of the seedlings between a lawn mower, for rice during the growth of rice roots buried depth was significantly greater than the weeds deep-rooted characteristics.The theoretical analysis, the method of combining simulation, the mechanism and parameters of the seedlings between a lawn mower.Seedlings before weeding equipment and paddy field weeding machinery research and development to provide a scientific basis and methods. This paper studies the structural design of weeding devices.Weedi