一种积放式输送机设计与分析
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摘要
采用托盘翻转返回型的设计方案,用模块化设计思想将产品按功能分为驱动机构、机身、托盘、牵引机构和阻挡器5个主要功能模块;采用CAD技术对每个结构进行详细设计,采用CAE技术对产品进行有限元分析和动力学仿真。其中核心的牵引机构可以在摩擦片的摩擦力驱动和棘轮棘爪的啮合力驱动之间自动转换,使托盘水平运行时靠摩擦力驱动,翻转时靠啮合力驱动。对研发样机进行功能性测试和耐久性测试,结果显示:设计的积放式输送机在输送速度150mm/s、单个托盘负载500 N的工作条件下托盘定位精度可达到±0.25 mm。
The pallet turning back type was adopted. Guided by the modular design concept,the product was divided into several functional modules: driving unit,main body,pallet,pallet driving unit and stopper. CAD was used for detailed design of each structure. CAE was used for FEA and kinetics simulation. The core mechanism,pallet driving unit,could automatically change between friction force drive of the friction plate and engaging force drive of the ratchet wheel & pawl,which enabled friction force drive for horizontal operation of the pallet and engaging force drive for turning operation of the pallet. The functional test and durability test of the prototype show that positioning accuracy of the pallet conveyor can reach ± 0. 25 mm in the conditions of transporting speed 150 mm / s and a single pallet load under 500 N.
The pallet turning back type was adopted. Guided by the modular design concept,the product was divided into several functional modules: driving unit,main body,pallet,pallet driving unit and stopper. CAD was used for detailed design of each structure. CAE was used for FEA and kinetics simulation. The core mechanism,pallet driving unit,could automatically change between friction force drive of the friction plate and engaging force drive of the ratchet wheel & pawl,which enabled friction force drive for horizontal operation of the pallet and engaging force drive for turning operation of the pallet. The functional test and durability test of the prototype show that positioning accuracy of the pallet conveyor can reach ± 0. 25 mm in the conditions of transporting speed 150 mm / s and a single pallet load under 500 N.
引文
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[3]孙永福.多功能升降机的设计研究及在实际中的应用[D].大连:大连理工大学,2007.
[4]张婧慧.机器人滚边技术及其研究[D].合肥:合肥工业大学,2010.
[5]姜俊杰.汽车工厂冲压车间输送系统自动化改造[D].上海:复旦大学,2010.
[6]谢志刚,谭志洪,陈小芹,等.积放式输送机的维护与保养[J].起重运输机械,2005(7):40-42.
[7]苏雅钟,游文海.积放输送机改进[J].科技资讯,2011(30):91-93.
[8]王义行.输送链与特种链工程应用手册[M].北京:机械工业出版社,2000.
[9]黄博.CATIA V5机械(汽车)产品CAD/CAE/CAM全精通教程[M].北京:人民交通出版社,2007.
[10]王世忠.结构力学与有限元法[M].哈尔滨:哈尔滨工业大学出版社,2003:42-178.
[11]申兆亮.基于ADAMS仿真新型滚子链链轮齿形的研究[D].济南:山东大学,2010.
[12]SMC.SMC气动元件第一册[M].4版,2008.