Research On Slinging And Reshipment System In Underworkings

For modern mine is concerned, comprehensive mechanized mining equipment such as large hydraulic support, because of its superior performance of supporting etc in mines, makes its application scope is becoming more and more widely. But, as the weight and volume of these large equipment is very big, make the works become extremely inconvenient, which are transportation to underground, and slinging, reshipment, assembly in underworkings. This becomes a serious problem which restricted the work of modern mine. In order to realize the production requirement of the safety and reliability, high yield and high efficiency of the modern mine, so we need urgently to design a new set of system for slinging, reshipment, assembly working of hydraulic support and other large equipment in underworkings. This is both the need of safety production in coal mine, and has great practical significance.This project for resolving the above problem, after analyzing the condition of the underground site, the workstage of slinging and reshipment, and the function requirement of the work process, referencing the design methods of hoisting and conveying machinery and other equipment, using modern design theory, developed a set of slinging and reshipment system in the underground. This system consists of hydraulic system, mechanical system and electrical system. In the electrical system, the motor provides the impulsion; the flameproof electric control cabinet provides start-stop control.In the hydraulic system, the various hydraulic valves and hydraulic cylinders provide operating control method and the movement of the driving force. In the mechanical system, the steel structure provides the load and support of whole system.Through designed all sorts of function like the speed limit and positioning, to ensure the slinging and reshipment work of large equipment more safe and reliable in the underworing.In order to effectively validate the various mechanical properties of this system design proposal, adopting the three-dimensional modeling software Solidworks2007, and its COSMOS/Works modules, for the three-dimensional modeling and finite element analysis to this system. Use all kinds of modeling tools of Solidworks2007 software, did the three-dimensional modeling of the mechanical system. And using the finite element analysis function of the COSMOS/Works module, analyze the slinging girder model which is the key components of this system. Through the finite element analysis, verified the correctness of the component design. And through the analysis, find out the weak link of the design, then optimized the structure design proposal, and achieved better optimization effect.Meanwhile, in order to research the dynamic characteristics of this system, applied the dynamics simulation software ADAMS to respectively simulate the dynamic characteristics of mechanical system model and mechanical-hydraulic coupling model of this system. Firstly, it is the movement dynamics simulation for the mechanical system model. Imported mechanical system model which had built in Solidworks2007 into dynamics simulation software ADAMS, used the dynamics simulation tools of ADAMS, simulate the mechanical system model. Through analyzed the simulation result, researched the dynamical performance of all moving parts, and had achieved great movement optimization results, made dynamics simulation more tally with the practical conditions. Secondly, it is the dynamics simulation of mechanical-hydraulic coupling model. Used the Hydraulics module of ADAMS software, have built the hydraulic systems model in the mechanical system model interface. Through various Settings, make the system mechanical and hydraulic system model coupling with eachother, thus dynamics simulating this union model. According to the simulation results, analyzed and studied the dynamic characteristics of hydraulic system.After reasoned out the insufficiencies of the hydraulic system model, adjusted and optimized the model, simulated the model again, finally obtained a excellent hydraulic system model and simulation results.Finally, through the industrial test, this topic further research on the field practical of the slinging and reshipment system in the underworking. The test results show that, the usability of this system is sifty and reliable, and can meet the slinging and reshipment works of hydraulic support and other large equipment in underground coal mine work. In the industrial test process, the workstages of each mechanism can satisfy the requirements of safety and practicality, achieved a great testing result.