Optimal Design About Turning Platform Of EBZ-135 Cantilever Type Roadheader

Boom-type roadheader is main force equipment of mechanized system's for integrated digging, its working conditions is complex and harsh,the scope of load it suffering is very large,therefore some key part's reliability design becomes the key point that we study. The turning platform is boom-type roadheader 's important component, it connects the rack, supports cutting arm, realizes drilling and cutting of the cut head,sweeping of the coal crag,ascending and descending of cut arm and the rotation movement,it withstands complicated and diversified impact load from cuts head.Therefore, it is necessary to carry on the intensity examination to the rotary mechanism preliminary design, make structure improvement and conduct optimization design for the intensity weak region.This paper is based on the EBZ-135 roadheader as the research object,We use UG software to model the parts,and import into the simulation software ADAMS after assembling the part, then carry on the kinematical simulation and the dynamic simulation, and obtain the load boundary condition. Finally,we utilize the simulation result to analysis the turning platform in finite element analysis software ANSYS. The concrete research content is as follows:1)Dynamic and simple interference examination of rotary mechanism(1)This paper Mainly establishs the following parts using the UG software: Tufning platform,rotary cylinder,lift cylinder, cutting agency, farme, then assembles into the whole machine, completes the simplified roadheader,carries out the simple interference inspection, finally.(2)Firstly, establish the virtual prototype of rotary mechanism.Then carry out kinematical simulation of roadheader. Carries out the dynamic interference inspection, finally.2)Determine the stress of the turning platform.Establish the dynamics virtual prototype of rotary mechanism.Then dynamic simulation of roadheader in crosscutting condition and drilling condition.Determine the stress of the turning platform, finally.3)Carrie on the finite element analysis to the turning platform.Carry on the finite element analysis, check each performance of the crawler board.Then improve the structure of the turning platform.