Research On Four-wheel Driving Carrier Of Coal Cutter Based On Virtual Prototype

Virtual prototype technology is called the mechanical system dynamic simulation technology, it is one kind of taking the computer modelling, the simulation as the foundation digitization design method. The technology can aim at different domain and different design requirements,and it synthesized the multi-disciplinary technologies,realize the product rapid designing,the performance analysis,the structure optimization and so on. Virtual prototype change the traditional design way, reduce the research cycle and capital, shorten the product development cycle, improve the product design quality, and enhance facing the customer and market requirement ability.Carrier of coal cutter is a machine for moving the coal cutter and one of the key part complete auxiliary transportation system equipments. It's a new type of non-rail transportation equipment. The design of the carrier takes advantage of anti-explosive and low polluting diesel engine, and other high reliable transmission parts. It is natioal innovative product.This paper is based on TY150 four drivers Carrier of coal cutter as the research object, and it is carried on with factory.In this paper,UG, RecurDyn and ANSYS are applied to the 3-D model conducting, dynamic simulation and finite element anylasis. The main contents are as follows:1 Research the traction force of four-wheel driving carrier on different working conditions.This paper creats the three-dimensional simplified model of frame in UG,and creats the walking mechanism in slow pedrail module of RD. The three-dimensional simplified model is imported into UG, assembled, and added constraints and friction to complete the virtual prototype.The paper carries on different dynamic simulations of the carrier, level moving, climing and pivotturn, under three circumstances: on the concrete road, on the solid road and on the loose road.Then we obtain the torque and tension curve of sprocket wheels, and find out the maximum torque and average torque from the curve, and aquire the friction coefficient and the turning coefficient on each kind of road state. It also carries on comparing analysis on simulation data with the theoretical calculation results.2 Check the strength of stretching device. We carry on static analysis of stretching device and check out whether strength meet the requirements based on the stress and strain obtained in the analysis.3 Check the strength of frame.Inspect the strength of the frame through static analysis and modal analysis, then check out whether syntony would happen.