育秧泥浆处理装置曲柄滑块振动筛设计与参数优选

Design and Parameter Optimization of Crank Slide Vibrating Screen of Seedling Mud Treatment Device

针对育秧泥浆处理装置的振动筛筛面残留有石块的问题,对筛面上石块的运动状态进行研究。通过理论分析得到了石块的运动状态与振动筛不同参数之间的关系。选取导轨倾角、曲柄转速、曲柄长度为影响因素,落石率为评价指标,利用RecurDyn和EDEM进行联合仿真,分析了不同影响因素的变化对落石率的影响,建立了不同影响因素和落石率之间的曲线,得到了最优参数组合。根据仿真结果,当导轨倾角为30°、曲柄转速为120 r·min^-1、曲柄长度为0.16 m时,振动筛的落石率最好,并通过物理样机试验,验证了仿真得到最优参数的有效性。该结果为进一步研究曲柄滑块振动筛提供参考。

In view of the problem of stone remaining on the surface of the vibrating screen of the seedling raising mud treatment device,the movement state of the stone on the screen surface was studied.Based on the theoretical analysis of rocks,the relationship between the movement state of rocks and the different parameters of shale shaker was obtained.Taking the angle of guide rail,crank speed and crank length as the influencing factors,and the rockfall rate as the evaluation indexes,this paper carried out joint simulation by RecurDyn and edem,analyzed the influence of the change of different influencing factors on the rockfall rate,and established the different influencing factors and rockfall rates.According to the simulation results,the rockfall rate of the shale shaker was the best when the angle of the guide rail was 30°,the crank speed was 120 r·min^-1 and the crank length was 0.16 m.The validity of the optimal parameters obtained by simulation was verified by physical prototype test.This study provided a reference for further study of the crank slider shale shaker.