一、用途与特点
（一）用途：
该机与拖拉机配套作业，主要用于免耕地单粒精播或双粒精播玉米，可条施晶粒状化肥，一次完成开沟施肥、开种沟、播种、覆土、镇压等项等工序.。
（二）特点：
1.排种器播种精度高，粒数合格指数达到80%以上。
2.采用法向充种，可以高速作业，当株距不小于20厘米时作业速度可达到8公里/小时。
3.穴距精确，幼苗分部均匀，竞争小，个体优势能够充分发挥，作物生长旺盛，产量高。
4.各行传动轴连成一体，统一驱动，转速一至，传动动力大，即使其中一行的地轮偶然打滑，也不影响该行正常播种。
5.排种器采用八速可调式排种器，各排种器自行控制株距。
6.变速箱操作手杆可以同时控制摆移轮径向摆和轴向移动，操作快捷方便，变速箱所有齿轮都选用优质钢材经过渗碳处理，各传动部件都选用了优质滚动轴承，性能可靠。
7.机架距地面抬高，前后开沟器距离加宽，缓减了夏播麦秸堵塞机器现象。
8.选用了大排量排肥盒，加粗了输肥管，亩最大排肥量可达80公斤。
二、技术参数
| 型 号 | 2BYSF—3 |
| 外形尺寸长×宽×高（毫米） | 1740╳1420╳1080 |
| 机具重量（千克） | 200 |
| 配套动力（马力） | 35-40 马力 |
| 行 数 | 3 |
| 行 距（毫米） | 428～800 |
| 株 距 (理论) | 单粒模式：130 ---350 八种可选择 |
| 株距合格率 | 85% |
| 开沟深度（毫米） | 60～80 |
| 施肥深度（毫米） | 60～80 |
| 播种深度（毫米） | 30～50 |
| 最大亩施肥量(千克) | 80 |
| 亩播种量（千克） | 1.5～2.5 |
| 伤 种 率 | ≤3 |
| 化肥箱容积（升） | 68 |
| 种子箱容积（升） | 8.5×3 |
| 纯工作效率hm2/h（ 亩/小时） | 0.3～0.45 (4.5～6.7) |
| 运输最小离地间距 | 400㎜ |
| 种床和肥床最小水平垂直间距（毫米） | ＞50 |
Founded in 2010, Shandong Sanli Agricultural Machinery Manufacturing Co., Ltd. is a company mainly engaged in research, development, production and sales of new agricultural machinery. The company is located in China's "hometown of calligraphy and painting" - Shandong Gaotang, east of the provincial capital Jinan.
The company has a total investment of 1600 million yuan, a total area of 50,000 square meters, a production plant of more than 30,000 square meters, a research and development center of more than 5,000 square meters, more than 600 employees, including senior engineers, engineers, management personnel, etc. There are nearly 100 professional and technical personnel in the company. It has micro tillage machine, corn seeder, mill seeder, multi-purpose cotton bean seed planter, corn thresher, cotton straw smash harvester, cultivating pesticide sprayer, fight drugs, water pump and automatic water-saving irrigation equipment. Advanced production lines, all kinds of production and testing equipment, through continuous optimization of the overall process equipment, to provide a guarantee for the company to produce high-quality products. The company's products are sold all over the world with its outstanding quality, excellent performance and beautiful appearance. It has won the trust and praise of customers with excellent service and passed the ISO9001 quality management system certification.
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