YL29纤维滤棒成型机配重块的研究

Research on the Counterweight of YL29 Fiber Filter Rod Forming Machine

【目的】为了解决因YL29纤维滤棒成型机喇叭嘴偏心盘驱动机构不平衡质量而引起的偏心振动问题,并为配重块设计提供理论支撑,以及实现滤棒规格的多样化设计需求,对配重块设计进行研究。【方法】本研究使用质量换算法分别对成型机组的齿轮、偏心盘及连杆总成进行质量换算,根据平衡计算法得到所需配重块的质径积,并结合齿轮现有结构对配重块外形尺寸进行设计。【结果】对添加的配重块进行分析,驱动机构由原来2.114 mm的偏心距缩短为0.09 mm,偏心距减小了95.7%。使用Ansys模态分析模块进行有预应力的模态分析,求得第三阶振动为圆周振动,频率为8691.8 Hz,高于机构的100 Hz工作频率。【结论】该研究为以后配重块设计提供理论支撑,且有利于滤棒产品规格的多样化,提高机构运行的稳定性,增加滤棒各项参数的稳定性。

[Purposes]In order to solve the eccentric vibration problem caused by the unbalanced equiva⁃lent mass of the horn mouth eccentric disc drive mechanism of the YL29 fiber filter rod forming machine and provide theoretical support for the design of the counterweight,realize the design requirements of di⁃versified filter rod specifications,perform analysis and research on counterweight design.[Methods]Dur⁃ing the study,the mass conversion method was used to convert the gears,eccentric discs and connecting rod assemblies of the forming unit respectively.Obtain the total unbalance of the horn mouth eccentric disk drive mechanism,Combined with the existing structure of the gear to design the outer dimension of the counterweight.[Findings]By analysis and calculation,after adding counterweight,the driving mecha⁃nism is shortened from the original eccentricity of 2.114 mm to 0.09 mm.The eccentricity was reduced by 95.7%.Using the Ansys modal analysis module to carry out modal analysis with prestress,the thirdorder vibration is obtained as the circular vibration frequency of 8691.8 Hz,much lower than the operat⁃ing frequency of the mechanism 100 Hz.[Conclusions]This study is theoretical support for future coun⁃terweight design,and it is conducive to the diversification of filter rod product specifications,it also im⁃prove the operating stability of the mechanism and increase the stability of various parameters of the fil⁃ter rod.