9gzx型旋转式割草机设计

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分类号
密级

毕业设计(论文)
9gzx型旋转式割草机
所在学院
机械与电气工程学院
专业
机械设计制造及其自动化
班级
ຫໍສະໝຸດ Baidu11机自x班
姓名
学号
指导老师
2015年3月31日
诚信承诺
我谨在此承诺:本人所写的毕业设计(论文)《4LBZ-100型割草机割草机改进设计》均系本人独立完成,没有抄袭行为,凡涉及其他作者的观点和材料,均作了注释,若有不实,后果由本人承担。
承诺人(签名):
2015年3月21日

割草机的发展方向将是向高科技化方向发展,制造出适用性强的割草机很有发展市场,对不同地区开发出不同的割草机是很有发展前途的。由此,相应的制造出高性能的割草机是国外收获机的发展概况。该割草机可一次性完成割草、割草、分离和装袋作业。该机体积小、重量轻,操作灵活,通过性与适应性好,较好地解决了大、中型割草机在丘陵、山区和水田难以割草的难题。割草的发展方向将是向高科技化方向发展,制造出适用性强的割草很有发展市场,对不同地区开发出不同的割草是很有发展前途的。由此,相应的制造出高性能的割草是国外收获机的发展概况。该割草割草可一次性完成拉伸、割草、分离和装袋作业。该机体积小、重量轻,操作灵活,通过性与适应性好,较好地解决了大、中型割草在丘陵、山区和水田难以拉伸的难题。割草试验机适用于航空航天、石油化工、机械制造、金属材料及制品、电线电缆、橡塑胶、纸品及彩印包装、胶粘带、箱包手袋、纺织纤维、食品、制药等行业。可测试各种材料及成品、半成品的拉、压、弯、剪等物理性能,选购各种不同的夹具可做抗拉、抗压、持拉、持压、抗弯、撕裂、剥离、黏着力、剪力等试验。拉伸试验是指在承受轴向拉伸载荷下测定材料特性的试验方法。利用拉伸试验得到的数据可以确定材料的弹性极限、伸长率、弹性模量、比例极限、面积缩减量、拉伸强度、屈服点、屈服强度和其它拉伸性能指标。从高温下进行的拉伸试验可以得到蠕变数据。金属拉伸试验的步骤可参见ASTM E-8标准。塑料拉伸试验的方法参见ASTM D-638标准、D-2289标准(高应变率)和D-882标准(薄片材)。ASTM D-2343标准规定了适用于玻璃纤维的拉伸试验方法;ASTM D-897标准中规定了适用于粘结剂的拉伸试验方法;ASTM D-412标准中规定了硬橡胶的拉伸试验方法。1.准备试件。用刻线机在原始标距范围内刻划圆周线(或用小钢冲打小冲点),将标距内分为等长的10格。用游标卡尺在试件原始标距内的两端及中间处两个相互垂直的方向上各测一次直径,取其算术平均值作为该处截面的直径,然后选用三处截面直径的最小值来计算试件的原始截面面积
关键词:割草机;割草;改进设计
Abstract
The development direction of harvester will be to high-tech direction, making out the applicability of harvester is the development of the market, is very promising for different regions developed different harvester. Thus, the corresponding manufacturing combine high performance is the development of foreign harvester.The development direction of harvester will be to high-tech direction, making out the applicability of harvester is the development of the market, is very promising for different regions developed different harvester. Thus, the corresponding manufacturing combine high performance is the development of foreign harvester. The rice combine harvester can complete harvesting, threshing, separation and bagging operations at one time.The development direction of harvester will be to high-tech direction, making out the applicability of harvester is the development of the market, is very promising for different regions developed different harvester. The development direction of harvester will be to high-tech direction, making out the applicability of harvester is the development of the market, is very promising for different regions developed different harvester. Thus, the corresponding manufacturing combine high performance is the development of foreign harvester. The rice combine harvester can complete harvesting, threshing, separation and bagging operations at one time. The machine has the advantages of small volume, light weight, flexible operation, through and good adaptability, can better solve the problem of big, medium-sized harvester to harvest in the hilly, mountainous and paddy field.Thus, the corresponding manufacturing combine high performance is the development of foreign harvester. The rice combine harvester can complete harvesting, threshing, separation and bagging operations at one time. The machine has the advantages of small volume, light weight, flexible operation, through and good adaptability, can better solve the problem of big, medium-sized harvester to harvest in the hilly, mountainous and paddy field. The machine has the advantages of small volume, light weight, flexible operation, through and good adaptability, can better solve the problem of big, medium-sized harvester to harvest in the hilly, mountainous and paddy field.The rice combine harvester can complete harvesting, threshing, separation and bagging operations at one time. The machine has the advantages of small volume, light weight, flexible operation, through and good adaptability, can better solve the problem of big, medium-sized harvester to harvest in the hilly, mountainous and paddy field.
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