拌胶机结构参数对刨花运动轨迹的影响与模拟
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摘要
利用工艺分析、理论计算与建立刨花运动流场模型进行数值模拟分析的方法,研究拌胶机主要结构参数对刨花在拌胶机中运动轨迹的影响。结果表明:拌胶爪与机壳内壁间距离、拌胶爪安装角度、各爪间间距是刨花运动轨迹曲线的振动幅度、疏密程度及料环厚度的主要影响因素,调整拌胶机的结构参数,会使刨花运动轨迹发生明显的变化,影响施胶均匀性、拌胶时间和拌胶效率;建立刨花运动轨迹流场模型,模拟拌胶机设备参数对刨花运动轨迹的影响,数值模拟结果验证了理论分析结果,为拌胶机的设计和调整提供参考。
With process analysis, theoretical calculation and numerical simulation analysis by establishing the flow field model of wood shavings motion, we studied the influence of the main structure parameters of the blender on movement trajectory of wood shavings in the blender. By theoretical analysis, the distance between claw and inner wall, the installation angle of mixed claws, the axial distance between the claws are the main influencing factors of the vibration amplitude, the degree of density and the thickness of the material ring on the motion trajectory curve of wood shavings. Adjusting the structure parameters of the blender will cause a significant change in the trajectory of the wood shavings, affecting the uniformity, the time and the efficiency of mixing glue. The flow field model of wood shavings motion trajectory simulates the influence of equipment parameters of the blender on the trajectory of wood shavings. The numerical simulation results verify the theoretical analysis results and provide reference for the design and adjustment of the blender.
With process analysis, theoretical calculation and numerical simulation analysis by establishing the flow field model of wood shavings motion, we studied the influence of the main structure parameters of the blender on movement trajectory of wood shavings in the blender. By theoretical analysis, the distance between claw and inner wall, the installation angle of mixed claws, the axial distance between the claws are the main influencing factors of the vibration amplitude, the degree of density and the thickness of the material ring on the motion trajectory curve of wood shavings. Adjusting the structure parameters of the blender will cause a significant change in the trajectory of the wood shavings, affecting the uniformity, the time and the efficiency of mixing glue. The flow field model of wood shavings motion trajectory simulates the influence of equipment parameters of the blender on the trajectory of wood shavings. The numerical simulation results verify the theoretical analysis results and provide reference for the design and adjustment of the blender.
引文
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[2] MARTINCLAUDE N Y,ALAIN C,PAPANIOKHOR D,et al.Physical and mechanical properties of particleboard made from extracted black spruce and trembling aspen bark[J].Forest Products Journal,2008,58(10):38-46.
[3] UK N,KUNAVER M,MEDVED S.Properties of particleboards made by using an adhesive with added liquefied wood[J].Materiali in Tehnologije,2011,45(3):241-245.
[4] 谌晓梦,于志明.刨花施胶效果的定量表征与分析[J].中国人造板,2009,16(2):21-25.
[5] MELO R R D,MIGUEL E P.Use of artificial neural networks in predicting particleboard quality parameters[J].Rev árvore,2016,40(5):948-958.
[6] 王金祥,孙丽萍,王松寒.模糊免疫2DOF PID在刨花板流量控制系统中的研究与仿真[J].机电产品开发与创新,2010,23(1):138-140.
[7] HIMSEL A,MULLER U,KANTNER W.Novel analytical method to determine factors causing unwanted sticking of glued wood particles onto machinery parts[J].Forest Products Journal,2015,65(1/2):54-59.
[8] 丁文华,南生春.新型环式拌胶机的研制[J].木材加工机械,2013,24(3):22-25.
[9] 赵小英,杜飞龙,向贤礼.基于Fluent的搅拌槽内多相流数值仿真及研究[J].制造业自动化,2015,37(13):109-112.
[10] 郑超,张雅云,肖建平,等.刨花形态对麦秸板物理力学性能的影响[J].西北农林科技大学学报(自然科学版),2015,43(3):191-198.
[11] 张桂兰,高志悦,王喜明.3种沙生灌木材材性及削片刨花制板工艺研究[J].木材工业,2006,20(4):10-12.