| Scissor lift platform as a versatile lifting equipment has been fairly widely used in factories, modern logistics, the transport sector because of its simple and compact structure, convenient operation, stable lifting,and carrying capacity. However, the lifting platforms which created by the traditional mode of production are more bulky appearance and the performance will have to be improved, due to the lack of theoretical basis. Therefore, it is serious urgent to optimize the design of the lifting platform to get the best products through scientific analysis and calculation means.The optimal design of the entire hydraulic scissor lift platform is achieved through the size optimization for the scissor arm. Firstly, The universal maximum thrust virtual work equation formula is obtained, through a series of maximum thrust of the same type scissors hydraulic lifting platform computing:Secondly, The maximum thrust is gotten through putting the data which provided by the lifting platform into the virtual work equation summarized before; Thirdly, the pinned holes of the scissor arm are calculated mechaniclly; Finally, the stability is calculated and analyzed.Three-dimensional model of scissors hydraulic lifting platform by using Pro/E software is established. Firstly, the various components of hydraulic lifting platform are draw; Secondly, the various components through the Pro/E assembly feature are assembled; Thirdly, the three-dimensional model of the scissors hydraulic lifting platform isput into ANSYS, the mechanical Analysis cloud is obtained; Finally, using the parametric design language program APDL in ANSYS the design of scissor arms is optimized.Scissor arm total volume of hydraulic lifting platform has changed from the original 0.666070* 107mm3 down to 0.2067* 107mm3, it has reduced 65.6%, which will save material. |
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