Mechanical Analysis And Structural Improvement Of The Elastic Element Of The Cam Lifting Hammer Device Of Coke Oven Tamping Machine

Coke is an important energy source in the steel industry,and the source of coke is coking of coal.China is a big country of coal resources,but the proportion of high-quality coking coal suitable for coking is relatively small.However,the technology of tamping coke oven coking can use weak bond coal,lean coal,lean coal,gas coal,etc.to save high-quality coking coal,and improve the quality of coke produced by tamping.Therefore,the technology of tamping coking develops rapidly in China,and has been developing towards large-scale,intelligent and green.6.25 m coking Stamping Charging Pushing machine(SCP integrated machine)is a large scale tamping coke oven coking equipment with independent property rights in China.In this paper,the tamping machine in the 6.25 m SCP integrated machine independently developed by Taiyuan Heavy Industry Group is taken as the research object.Through consulting the relevant technical manuals and literature,and on-the-spot investigation in the coking plant of Xiaoyi Jinyan group,which uses the tamping coke oven coking equipment.The cam hammer lifting device of the tamping machine is studied.According to the observation of the working process of the tamping machine,the existing problems in the actual work are found and the structure is improved.Then the structure before and after the improvement is modeled and simulated by the simulation software.The feasibility of the new structure is proved by comparison.Firstly,starting from the motion condition of the tamping hammer elastic cam lifting device,according to the tamping hammer motion process in the actual work,the stress process of the cam and its internal elastic elements is analyzed.The elastic element is rubber spring,which is the core device of elastic cam.Its service life directly affects the working efficiency of the whole tamping machine.Through the analysis of the stress state of the elastic element,the dangerous section and the maximum deformation position are found in the process of stress.Then,the improvement of the rubber spring structure and the overall structure of the cam are proposed.Two improvement schemes are put forward for the structure of rubber spring and the whole structure of cam.Then,two-dimensional design software CAXA and three-dimensional design Software Solid Works are used to model the cam hammer lifting device,cam and rubber spring before and after structure optimization.Through Ansys simulation analysis of rubber spring structure before and after improvement,according to the actual working process,the load on the three-dimensional model is applied to the rubber spring.The deformation diagram and the analysis results of stress diagram are obtained.Through comparison,it is proved that the optimized structure of rubber spring can reduce the maximum deformation and stress,and the effect of scheme two is more significant in both schemes.Through the simulation analysis of the cam before and after the overall improvement,the simulation analysis results of the stress and deformation.diagram and the stress and strain diagram before and after the structural improvement are obtained.Through the comparative analysis,the new structure will not reduce the strength while optimizing the original structure,so as to determine the feasibility of structural optimization.