Key Structure Design And Finite Element Analysis Of Roadway Cement Paver

At this stage,because there is no chassis structure suitable for paving equipment on the road surface of coal mine roads,manual paving is still used.In response to this phenomenon,this article investigates the structure and working principle of the existing slipform cement paver.Based on the operating environment and requirements,we developed and designed a chassis structure of a roadway cement paver that meets the needs of coal mine operations.Compared with the slipform cement paver paving road surface,the advantages of this chassis structure are manifested in two aspects.First,the frame in the chassis structure is flexible,so that the auxiliary paving device can fill the paving The position directly behind the crawler belt can drive the auxiliary paving device to pave difficult-to-pave positions such as shoulders and water troughs,which can improve the efficiency of full-width paving;second,the chassis structure is a wheel-track composite structure,which can be performed by switching wheels The walking device realizes a wide range of speed adjustment,which solves the problem of time-consuming transition between coal mines.It is need to consider some parameters of the devices,as structure and assembly methods,to improve the precision of the design of the chassis structure,the outline dimensions of these working devices are briefly designed.Among them,in the working process,the working resistance and torque of the screw distributor will damage the structure of the front screw distributor and affect the service life.The vibration effect of the vibrating rod on the vibrating beam will be reduced.The life of the vibrating beam and the screw distributor are important for the whole machine.Therefore,the design of these two working devices is emphasized.After comparison,this paper selects the wheel-track combined chassis,and sets the strategy of the chassis according to the paving requirements.According to the plan,the calculation of relevant parameters of the crawler and the wheel were done,and the initial design of the frame was implemented.According to the production efficiency,construction technology and material type of the paver,the screw distributor and vibrator are designed and calculated respectively,and other working devices are briefly designed to determine the local size of the frame.Use Creo to build a three-dimensional model of the above-mentioned design components.Use ANSYS to perform statics analysis,topology optimization,modal analysis,and fatigue analysis on the chassis in the chassis device under crawler walking and wheeled walking conditions,and perform statics and modal analysis on the screw distributor,analyze the harmonic response of the vibrating beam to ensure that each structure meets the design requirements.