一种免耕播种机及其播深控制方法
By monitoring soil compaction through a disc mechanism and sensors, and combining this with dynamically adjusting the height of the depth-limiting wheel, the problems of inaccurate sowing depth control and seed damage have been solved, achieving adaptive adjustment of sowing depth and seed protection.
CN120548830BActive Publication Date: 2026-07-17NANJING AGRI MECHANIZATION INST MIN OF AGRI +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING AGRI MECHANIZATION INST MIN OF AGRI
- Filing Date
- 2025-05-28
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies suffer from insufficient precision in controlling sowing depth and the problem that seeds are easily damaged by pressure.
Method used
A disc mechanism and sensors are used in conjunction with a trench depth detection device to monitor soil compaction in real time. The height of the depth-limiting wheel and the sowing depth are dynamically adjusted by a controller, and an elastic pressing mechanism is used to prevent the seeds from being crushed.
Benefits of technology
It enables adaptive adjustment of sowing depth, improves sowing accuracy and seed germination rate, and enhances adaptability to complex soil conditions and sowing quality stability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN120548830B_ABST
Abstract
本发明公开了一种免耕播种机及其播深控制方法，播种机包括机架、开沟轮、限深轮、镇压轮、覆土机构及投种管，并设有沟深探测装置与控制器。两个开沟轮之间形成前窄后宽间隙；限深轮分置于开沟轮外侧并通过高度调节机构控制其高度。镇压轮通过连接杆与轮轴中间部分转动连接，连接杆中部安装圆盘机构，圆盘机构包含圆盘本体、与圆盘本体转动连接的连接架，连接架与连接杆间设有弹性元件及传感器。投种管末端位于圆盘本体与镇压轮之间，连接杆与机架间设弹性下压机构。本发明结合传感器数据判断土质密度并自适应调节播深，优化播种深度合理性。圆盘本体切出的细槽配合弹性下压的镇压轮镇压固定，既避免种子受压损伤，又提升播种深度一致性。
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