Design And Optimization Of Belt Conveyor Drum Structure

The belt conveyor is the most commonly used continuous cargo machine in modern times.The main components are: conveyor belt,drive unit,idler,roller,safety device,counterweight,etc.The drive unit transmits the driving force to the conveyor belt through the drum.In the production of coal mine enterprises,the belt conveyor is a device with high mechanical efficiency and smooth and continuous transmission in the mine production,and the reversing drum is one of the important components of the belt conveyor.The reversing drum is responsible for providing steering for the conveyor belt in the coal mine transportation production.With its own weight,the conveyor belt can be tensioned and the conveyor belt tension can be increased to ensure the transportation volume.However,the failure of the reversing drum will cause immeasurable losses.For example,the production line is shut down,the equipment is time-consuming and labor-intensive for maintenance,and even more,it causes a major safety accident.In recent years,many researchers have improved the belt conveyor equipment by optimizing the design,which is to solve the design optimization of the key component redirection drum.This paper is based on the main inclined shaft DTL160/330/3 × 1600 fixed belt conveyor parts ?830×1800 reversing drum as the research object,using ANSYS software to carry out finite element analysis and structural optimization design of the reversing drum,and improve the structural reconstruction.verification.Firstly,the structure of the belt conveyor redirection drum was designed.The transfer ligand of the reversing drum was determined,and the load distribution was analyzed.The main failure modes were summarized.Secondly,static analysis and modal analysis of the reversing drum shaft is performed using ANSYS software.The drum is placed in the working environment of the belt conveyor,and the structure is simplified and assumed.The finite element model is established according to the uniform force of the quasi-static process,and the static analysis and modal analysis are performed.The maximum stress calculated by the software is 13.364 MPa,which is located at the joint between the shaft and the sleeve;the maximum displacement is0.01477 mm,which is located in the middle of the shaft.Based on the ANSYS WorkbenchModal module,the overall frequency of the reversing drum is constrained by the cylinder at both ends,and the tangential free condition is obtained.The free modal analysis of each key component,including the drum shaft,spoke and drum cylinder.Get its natural frequency.It provides data support for the later optimization calculation,and provides a basis for comparison with the optimized analysis and analysis results.Thirdly,after obtaining the optimization result,the remaining geometry after analysis is analyzed and statistically,and the residual geometry shape change rules based on different calculation results and analysis targets are grasped,and the shaft,spoke,support ring and cylinder of the reversing drum are respectively performed.Optimized redesign,followed by static analysis and modal calculations.Finally,the entire redirection drum structure is optimized to achieve a weight reduction of 282.111 kg,while the maximum stress that the reversing drum is subjected to after optimization is less than the maximum stress before optimization,meeting the needs of use.Through the distribution of stress and displacement clouds,the distribution is uneven,the quality is redundant,and the reversing roller shaft is optimized to achieve the goal of lightweighting,reducing the structural inertia and easy to control.Through the static analysis done before,the over-redundant structural area in the drum structure was found,and the modal and vibration mode of the reversing drum were obtained.The topology optimization of the reversing drum was carried out to optimize the material distribution and rectify The results of the material distribution and the formation of the roller spindle stress and displacement are optimized,and a new reversing drum structure is established to determine the optimal structure.The improved redirection drum has a weight reduction of 11.03%,which improves the stress distribution and reduces the maximum stress.From the overall consideration of lightweighting,it focuses on the quality level,and at the same time provides ideas for perfecting other components.