4lz-1200型水稻联合收割机拨禾机构设计.rar

4LZ-1200型水稻联合收割机拨禾机构设计

[摘要]:我国是农业大国，水稻生产机械化对水稻种植至关重要，水稻联合收割机是实现水稻收割机械化的重要工具，而水稻联合收割机小型化、微型化是在南方山区、丘陵地区实现农业机械化的关键。因此，研究小型水稻联合收割机具有重要的现实意义。
本文分析了现有的联合收割机在南方山区、丘陵地区使用时存在的问题，对联合收割机的偏心拨禾轮的功率耗用作了较深的研究，研究开发具有自主知识产权的4LZ—1200型全喂入水稻联合收割机。
首先，采用特殊的全喂入脱粒形式，将现有联合收割机的割台、输送、脱粒机三大部分简化一体，大大地简化联合收割机的结构，从而使联合收割机小型化、微型化。
实验证明，本文设计的4LZ—1200型全喂入水稻联合收割机的各项性能指标均达到或超过了国家标准。

[关键词]：全喂入水稻联合收割机;拨禾机构;

Design poking grain mechanism of 4LZ-1200 Combine harvester

[ABSTRACT]The mechanization for harvesting rice crop products is very important in our country, a large agricultural country. The combine is one of main tools to achieve mechanization for harvesting rice crop product. In southern mountainous area and hilly area, the micro and mini combines play important role for harvesting grain products. So it is worth to study the mini combine.
In this paper, some existing problems with using combines in southern mountainous area and hilly area were analyzed. And the eccentric poking grain wheel of the thresher of the combine have been researched deeply. A 4LZ-1200 Entire-feed-carrier combine harvester with self-copyright for grain crop has also been studied.
Firstly, the three parts of the combine, cutting, transporting and threshing parts, were simplified into account by adopting special Entire feed carrier threshing style, and largely simplified the structure of the combine, thereby make it become micro and mini.
The experiment results showed that the target aim of 4LZ—1200 Entire-feed-carrier combine have been reached or even exceeded the national criterion. The product has gained the state patent.

[KEYWORDS] Entire-feeding combine; poking grain mechanism
 
目录
第一章 绪论 1
1.1我国水稻生产概况 1
1. 2全喂入水稻联合收割机的现状和发展趋势 1
1.2.1水稻收获机械的发展慨况 1
1.2.2国内外全喂入水稻联合收割机的现状及发展趋势 2
1.3小型全喂入水稻联合收割机的研究意义 4
1.3.1在中国农村现实经济条件下引进国外产品的困难 4
1.3.2国内全喂入水稻联合机的不足 4
1.3.3小型全喂入水稻联合收割机的研究意义 5
第二章 偏心拨禾轮机构的分析 7
2. 1引言 7
2.2偏心拨禾轮机构结构设计 7
2.3拨禾轮的工作原理 9
2. 3.1 拨板的运动分析 9
2.3.2拨禾轮正常工作的条件 10
2.3.3拨禾轮工作过程 10
2.4拨禾轮主要性能参数的确定 11
2.4.1拨禾轮的转速 11
2.4.2拨禾轮的直径 12
2.4.3拨禾轮的作用程度 13
2.4.4拨禾轮的功率消耗 14
第三章 总结 15
致谢 16
[参考文献] 17