Design of mobile automatic log splitter
LI Wen hui, HU Li
(Mechanical and Electrical Engineering Department, Wenhua College, Wuhan 430074, China)

Abstract: Aiming at the problems of low efficiency and low automation level of log splitter,the splitter structure and working principle were studied. A mobile automatic log splitter which was integrated the functions of sawing wood and chopping wood was designed by the Autodesk Inventor software.The virtual prototype was built to analyze the interference of the whole machine,and the stress analysis was used to verify the rationality of the structural design.Based on the requirement of continuous action of the log splitter, hydraulic system with high and low pressure double pump was conducted.Feeded wood by forklift or crane or installed feeding mechanism lifted the log on the machine table.At the same time,chopped pieces of wood by conveyer belts or conveyors were transported to the designated location collected.Wood was automatically feeded,sawn,split and transported by the machine.The results indicate that the virtual prototype technology is used to analyze the performance of the machine, such as the shape of the log splitter,the mechanical system and the hydraulic system, which can provide the parameter basis for the design and manufacture of the log splitter,and improve the design quality and efficiency.

Key words: log splitter; virtual prototype; stress analysis; hydraulic system