振动式深松机振动装置的设计与研究

The Design and Research on the Rapping Device in Vibration Subsoiler

针对皖北地区沙土土壤有效深耕等问题,把虚拟样机技术应用于农业机械中,设计了一种振动式深松机模型。首先使用CATIA和ADAMS软件建立振动式深松机的虚拟样机动力学模型;其次对其进行了多体动力学仿真,得到了振动深松铲的动态载荷曲线,确定了深松铲在工作过程中所受的载荷谱;最后根据ADAMS输出的载荷谱,利用有限元原理,在ABAQUS中建立了深松机振动装置的有限元模型,计算出深松铲在实际工作中的承受应力和应变。根据强度理论得出运用该方法设计出的振动深松铲完全可以满足强度要求。其研究结果为联合仿真技术在农业机械中的实际应用提供了参考。

Aiming at the problem of how to effectively deeply plow in sandy soil in Northern Anhui, virtual prototyping technology is applied in agricultural machinery, and a vibration subsoiler model is designed. Firstly, the virtual prototype dynamic model of vibration type deeply-loosening machine is established by using CATIA and ADAMS software; secondly, the multi-body dynamics simulation is carried out, and the dynamic load curve of the vibrating deep loosening shovel is obtained, the load spectrum of the deep loosening shovel in the working process is determined; finally, according to the load spectrum of the ADAMS output, the finite element model of the vibration device of the deep loosening machine is established by using the finite element method, and the stress and strain of the deep loosening shovel in the actual work is calculated. According to the strength theory, the vibration deep loosening shovel designed by this method can meet the strength requirement. The results of the study provide a reference for the practical application of the combined simulation technology in agricultural machinery.