马铃薯播种机的设计

目录

摘要.................................................................. II 关键词................................................................ III ABSTRACT .............................................................. III KEY WORDS .............................................................. IV 1 前言 (1)

1.1课题背景和科学意义 (1)

1.2国内外马铃薯播种机的发展现状 (1)

1.2.1 国外马铃薯播种机的发展现状 (1)

1.2.2 我国马铃薯播种机的发展现状 (2)

1.3设计的主要内容 (2)

1.4升运链式播种机主要技术参数 (2)

2 总体设计 (3)

2.1总体方案设计 (3)

2.1.1 设计原则 (3)

2.1.2 基本结构 (3)

2.1.3 工作原理 (3)

2.2配套动力的选用 (3)

3 传动装置的设计计算 (4)

3.1传动路线的确定 (4)

3.2传动比的计算 (4)

4 排种器的选型设计 (4)

4.1种箱结构参数的设计 (5)

4.1.1 种箱尺寸的确定 (5)

4.1.2 种箱容积的计算 (5)

4.2排种器的选型与计算 (5)

4.2.1 马铃薯播种机对排种器的性能要求 (5)

4.2.2 现有排种器的类型和特点 (6)

4.2.3 排种器的选型 (6)

4.2.4 升运链相关系数的确定 (7)

5 排肥器的选型设计 (8)

5.1排肥器的性能要求 (8)

5.2常用排肥器的种类和特点 (8)

5.3排肥量的计算 (9)

6 开沟器的选型设计 (9)

6.1开沟器的性能要求 (9)

6.2现有开沟器的种类和特点 (10)

6.3开沟器的选型 (10)

6.4开沟器结构参数的确定 (10)

6.4.1 入土角α的确定 (10)

6.4.2 切土角β的确定 (11)

6.4.3 铲翼张角γ的确定 (11)

6.4.4 开沟器外形尺寸的确定 (11)

7 输种管的选型设计 (11)

7.1输种管的性能要求 (11)

7.2输种管的选型 (11)

7.3输种管参数的确定 (11)

7.3.1 输种管的直径 (11)

7.3.2 输种管的倾斜度与长度 (12)

8 覆土器的选型设计 (12)

8.1覆土器的种类和特点 (12)

8.2覆土器的选型 (12)

8.3覆土器性能结构参数的确定 (12)

9 镇压轮的选型与设计 (13)

9.1镇压轮的使用条件 (13)

9.2设计要求 (13)

9.3结构设计 (13)

10 行走轮的选型设计 (14)

10.1行走轮的设计要求 (14)

10.2行走轮的结构 (15)

10.3行走轮的安装 (15)

10.4行走轮转速的计算 (15)

11 结论与建议 (16)

11.1结论 (16)

11.2建议 (16)

参考文献 (17)

致谢 (18)

马铃薯是我国主要的粮食作物之一，在我国得到大面积栽种。2007年，我国马铃薯种植面积和产量都位居世界首位，然而尽管总产量大，但是单产量却很低。造成这一原因的主要因素是种植方式和机械化水平的落后。因此，当前的主要任务就是提高马铃薯种植的单产量。提高马铃薯单产量有两个途径：一是改进种植方式；二是提高机械化种植水平。而提高机械化生产水平是最有效的方式，这就要求各种性能先进，种植效率高，通用性和适应性强，结构简单易于制造与维修的马铃薯种植机不断被设计出来并得到大力的推广与应用。升运链式马铃薯播种机是一种块状马铃薯播种机，其结构简单，工作可靠，效率高，不伤种，在国内外正逐渐得到广泛的应用。

关键词

播种机；马铃薯；升运链式排种器；外槽轮排肥器；锄铲式开沟器

Potato,which is one of the most important grain crops in our country, is growthing in a rather huge area . In 2007, potato’s planting area and output of China situated in the first place of the whole world. Although the ultimate output is huge, the per unit area yield quantity is at a rather low palce. The tow primary reasons for this situation are that we are behindhand in the way of planting and in the mechanized level. Therefore, the currently primary mission is enhances the per unit area yield quantity. Generally speaking,we could arrive at this aim through two ways: First, improving the way to plant; Second, enhancing the mechanized level of planting. At now, raising the mechanized production level is the most effective way. This will request each kind of potato-planting machine with advanced performance, high efficiency of planting, strong universal property and adaptability, and simple structure that is easy to be produced and maintained to be designed unceasingly and widely promoted and applicated vigorously. Rises to transport the chain potato seeder is one kind of sowing seeds massive potato seed tuber's seeder.With its simple structure, reliable operation, high efficiency, and hurtless to plants, this machine is widely applicated both in domestic and foreign country.

Key words

Planter ；Potato ；Ladle—chain dispenser ；Fluted roller fertilizer apparatus ；Hoe opener