Optimization Design Of Crawler Frame Of TY100Driving Carrier Of Coal Cutter

This topic is based on the crawler frame of TY100type driving carrier of coal cutter (hereinafter referred to as the carrier van),on it the dynamic simulation and finite element analysis be done and the unreasonable structure is in optimization design. The carrier van belongs to the crawler walk vehicles, is a transport equipment in coal mine when move coal cutter. The vehicle design and research combined with much discipline research results and a variety of advanced technology, in our country is innovative vehicles.This van’s advantage is can some how improve handling efficiency, reduce labor intensity and provides some certain technical support in speed up the trackless assist transportation in underground coal mines.Crawler frame as core components of van crawler walk organization is the important supporting and connection parts.It mainly bear the whole coal cutter machine and the weight of the main frame.The drive sprockets, heavy support wheels, chain support wheels and tensioning devices are installed in the skeleton,so itself structure, stiffness and its main frame and the connection between itself and main frame, has very big effect on the van reliability and life expectancy.Therefore, this subject according to the size of the2d designed drawing the3d modeling of carrier van and dynamics simulation, and according to the simulation results of the crawler frame to conduct finite element analysis method to check the stiffness and strength, eventually, through the analysis to enhance the intensity and rigidity of the crawler frame where the structure is not reasonable, in order to achieve the requirements of the actual working condition.In the study, have concrete calculated the theory stress in the X, Y, Z three direction of crawler frame when carrier van level walk and one side break turn on the loose dirt road. The modeling for van3d modeling and assembly main use the3d CAD software Unigraphics (hereinafter referred to as UG) and dynamic simulation software RecurDyn (hereinafter referred to as RD), crawler frame and main frame is the main object of the subject, so complete according to2d size in the UG precise modeling. And the other parts of the walking mechanism drive sprockets, heavy support wheels, chain support wheels and hydraulic oil cylinder,directly established according to in RD’s low speed crawler module Track (LM), when those parts completed, should be assembly in RD,as add restrictions, contact and friction to finish the establishment of the virtual prototype.With the virtual prototype this topic mainly conduct dynamics simulation:walk level and walk when one side braking, the other side turn90°side movement (hereinafter referred to as the side braking to) on the cement road surface and the loose dirt road, get simulation curve and according to the curve to determine the crawler frame’s friction and contact force, analysis to get this two conditions crawler frame’s average stress under this two conditions; Finally contrast the simulation result with the theoretical calculation result verification the simulation accuracy and determine average stress value of crawler frame in X, Y, Z three direction under the most unfavorable conditions, for provides enough data support finite element analysis. This topic crawler frame’s finite element analysis is be done in UG advanced simulation module, through analysis the stress and the strain figure,to judge crawler frame design can satisfy the intensity and rigidity or not. If don’t satisfy the intensity or rigidity requirement of the crawler frame, to find the causes and optimization design, conduct finite element analysis again, judge whether the improved to meet the actual working condition requirements.