机械毕业设计490大垄双行精密播种机的总体设计

摘要

本设计是根据国内外播种机的发展趋势，通用性和适应性不断提高，根据大垄双行播种形式而设计的一种能同时完成播种施肥工作的大垄双行精密播种机。该机结构上优点，使之能适应各种田地的播种。不管是平坝、还是浅丘地区；无论是板结的土质，还是疏松的土质都能适应。还可以根据用户的不同需求，配置合适的播种器。通过调节犁铧和种子储存孔的行距，能够轻松地播种小麦、大麦、高粱、大豆、玉米等旱粮作物。本例着重对播种机排种器、排肥器、开沟器、覆土器以及镇压轮等结构进行设计选择。

关键词: 精密播种;播种机;大垄双行;

Abstract

The design is based on the development trend of domestic and foreign seeder,interoperability and adaptability in a constantly improving, big ridge a can complete seeding and fertilizing work also designed according to the double rowplanting form of double row precision seeder. The structural advantages, so that it can adapt to various fields of sowing. No matter is Pingba, hilly areas or; bothcompaction of soil, or loose soil can adapt. Also can be according to the different needs of users, the suitable seeding device configuration. By adjusting the ploughand seed storage hole spacing, can easily sow wheat, barley, sorghum, soybean,corn and other crops. This example focuses on the seed metering device, a fertilizer discharging device, a furrow opener, cover and press wheel structuredesign.

Keywords：Precision seeding;Seeder;Double row;

目录

摘要 ............................................................................................................................. I Abstract........................................................................................................................ II 1 前言 ........................................................................................................................ - 1 -

1.1 我国精密播种机发展现状........................................................................... - 1 -

1.2 精密播种机的发展前景............................................................................... - 1 -

1.3 播种机类型 .................................................................................................. - 2 -

2 播种机的总体方案设计 ................................................................................... -

3 -

2.1主要结构及功能 ........................................................................................... - 3 -

2.2总体配置 ....................................................................................................... - 3 -

2.3 播种机主要部件设计 .................................................................................. - 6 -

2.4传动系统 ......................................................................................................- 27 -

3 播种机的使用注意事项 ..................................................................................- 29 -

3.1 播种机的保养与保管 .................................................................................- 29 -

3.2 安全准则 .....................................................................................................- 29 -

3.3 故障与排除 .................................................................................................- 30 -结论 .......................................................................................................................- 31 - 参考文献...................................................................................................................- 32 - 致谢 .......................................................................................................................- 33 -