不同支链初始相位的三维并联筛分性能研究

发布时间：2018-06-28 18:37

  本文选题：三维并联筛 + 初始相位　； 参考：《农业机械学报》2017年09期

【摘要】：并联振动筛因可实现多维振动、利于物料高效筛分而应用前景广泛,为提高并联振动筛分性能,首先提出了具有不同初始相位的三维并联振动筛模型并进行了运动学分析,利用EDEM软件开展了三维并联振动筛分的初始相位单因素仿真,再通过台架试验对仿真结果进行了验证分析,并开展了多因素正交试验分析了各因素对性能指标的影响主次顺序和较优因素组合。研究结果表明:同等条件的台架试验与仿真结果基本一致,在其他条件不变时,筛分籽粒量随X方向初始相位的增大而先增后降,且X方向初始相位为45°时含杂量最多;Z方向初始相位为90°时筛分籽粒量最低,含杂量随着Z方向初始相位的增大而先增后降;Y方向初始相位在30°和60°时筛分籽粒量较高,在60°时含杂量低于其他水平且差异明显;正交试验得出各因素影响筛分效率的主次顺序依次为:X方向振幅、Y方向振幅、Z方向初始相位、X方向初始相位、Y方向初始相位、Z方向振幅,各因素影响含杂率的主次顺序依次为:Z方向振幅、Y方向振幅、X方向振幅、X方向初始相位、Z方向初始相位、Y方向初始相位,采用最佳组合参数后筛分效率提高了62.02%,含杂率降低了53.85%。
[Abstract]:In order to improve the performance of parallel vibrating screen, a three-dimensional parallel vibrating screen model with different initial phases is proposed and kinematic analysis is carried out. Using EDEM software, the initial phase single factor simulation of 3D parallel vibrating screen is carried out, and the simulation results are verified and analyzed by bench test. Multi-factor orthogonal test was carried out to analyze the influence of each factor on the performance index, and the order of primary and secondary factors and the combination of better factors were analyzed. The results show that the results of the bench test under the same conditions are basically consistent with the simulation results. When the other conditions are not changed, the amount of sieve grain increases first and then decreases with the increase of the initial phase in the X direction. When the initial phase of X direction is 45 掳, the grain quantity is the lowest when the initial phase of Z direction is 90 掳, and the grain quantity is higher when the initial phase of X direction is 45 掳and the initial phase of Z direction is 90 掳, then the initial phase of decreasing Y direction is 30 掳and 60 掳. At 60 掳, the content of impurity is lower than other levels and the difference is obvious. The orthogonal test shows that the primary and secondary order of the factors affecting screening efficiency is: X direction amplitude, Y direction amplitude, Z direction initial phase, X direction initial phase and Y direction initial phase and Z direction amplitude, The primary and secondary order of each factor affecting the impurity content is in the order of: Z direction amplitude and Y direction amplitude and X direction amplitude X direction initial phase X direction initial phase and Z direction initial phase and Y direction initial phase. The screening efficiency is increased by 62.02 and the impurity ratio is reduced by 53.85.
【作者单位】： 江苏大学现代农业装备与技术教育部重点实验室;
【基金】：国家自然科学基金项目(51375214、51605196) 江苏省自然科学基金项目(BK20160532) 中国博士后科学基金项目(2016M591788)
【分类号】：TH237.6
，

本文编号：2078960