摘要
仿形机构是构成精密播种机的重要部件,会直接影响到播种后种子的出苗率,进而影响农作物的产量。因此,对最常见的平行四杆仿形机构进行了设计与仿真分析,并且对该机构进行了简化及受力分析;依据牵引角及仿形量,确定了各仿形杆的尺寸大小。最后用ADAMS软件进行了运动仿真分析。结果表明,上下仿形量可达到180mm,与理论设计一致,并且仿形效果能够满足播种农艺要求。
The profiling mechanism is an important part of a precision seeder, it can directly affect the germination rate of seeding seed and the output of crop. Therefore, the most eomunm parallel four-bar profiling machinery is projected and simulated. The mechanism is simplified, stress analysis of the mechanism is carried out. According to the maximum of profiling and traction angle, the dimensions of the rod are determined. Then the kinematics simulation of parallel four-har profiling mechanism is carried out using ADAMS software. The results indicated that maximum of upper and lower profiling reached 90 mm respectively consistent with theoretical design, and the profiling effect can satisfy sowing agronomic requirements.
出处
《机械工程师》
2014年第7期121-123,共3页
Mechanical Engineer
基金
国家科技支撑计划项目(2012BAD42B03)
石河子大学科学技术研究发展计划项目(2012ZRKXYQ05)
关键词
四杆仿形机构
设计
ADAMS
运动仿真
four-bar profiling machinery
design
ADAMS
kinematics simulation
