Structural And Control System Design Of Beaded Rope Adaptive Self-adjusting Wire Saw

In the field of stone mining,diamond wire saws have become the mainstream technology of the new stone mining industry with the technical characteristics of simple mining method,low energy consumption,high efficiency,low noise and green environmental protection.However,the feed displacement of the conventional wire saw machine is limited and the rope slack occurs due to the gradual decrease of the tension force after a period of cutting.The conventional method is to manually reduce the length of the rope to maintain the rope tension,but this greatly reduces the work efficiency.In response to this problem,a beaded rope self-adjusting wire saw is designed in this paper.The wire saw uses an adaptive adjustment device to increase the running length of the beaded rope and effectively reduce the number of broken ropes.(1)Research on the overall scheme of the mechanical structure of the beaded rope selfadjusting wire saw.Firstly,the functions of each mechanical structure of the wire saw machine is analyzed to perform modular processing.Secondly,according to the actual calculation and analysis to select the parts of the mechanical structure.(2)Dynamic characteristics analysis of beaded rope self-adjusting wire saw.Firstly,according to the working condition of the wire saw,the virtual prototype software is used for simulation analysis to obtain the force in each direction of the main gear train.Secondly,a mathematical model through the differential method to analyze the influence of the wrap angle on the tension is established.Then,the changes in the tension of both the conventional wire saw machine and the new wire saw machine.(3)The finite element analysis and optimization design of the structure of the beaded rope self-adjusting wire saw.Firstly,static analysis and modal analysis of the wire saw machine are carried out to study the strength and resonance of the wire saw machine which is based on the previous dynamic analysis.Secondly,the natural frequency that is most likely to cause resonance under external excitation,so as to avoid this frequency in industrial design through harmonic response analysis.Then,the design of the main board of the key mechanism of the wire saw is optimized to obtain an optimized main board structure with a mass reduction of 18.05%.Finally,the reliability of the optimized motherboard is analyzed to verify its reliability and safety.Finally,the relationship between speed,tension and cutting efficiency is analyzed to provide data support for the control of the wire saw in the future.(4)Experimental research on the cutting parameters of the wire saw.Firstly,the wire saw cutting experiment device is introduced.Then,field experiment is conduct to obtain the experimental data of cutting speed,feed speed,tension,and cutting efficiency by the single factor method design scheme.Through the overall design of the beaded rope self-adjusting wire saw machine,the dynamic analysis research of the wire saw machine,the finite element analysis of the mechanical structure of the wire saw machine and the optimization design and the experimental research on the cutting parameters.These studies provide theoretical and experimental basis for the improvement of mine wire saw technology.