| Slag pot carrier is a no-rail transport equipment used for transporting slag in the steel plant, which is flexible, efficient, not limitted by route or loading points. And it needs little investment, which is used more and more extensively. Domestic Slag pot carrier is made lately, and the foreign Slag pot carrier is expensive with long delivery cycle, and poor service, so it has good market prospects and socio-economic benefits to make Slag pot carrier with intellectual property, and which can meet the domestic demand for steel plant.According to design requirements, determine the overall structure and design parameters of the Slag pot carrier. Analyse the link type arm body, and compare with no-link arm body used with mapping and calculating method, which indicates the link type arm body has large flip angle, small work force and short trip to cylinder, and high efficiency. Model the link type arm body using UG software, and import to ANSYS Workbench to do static analysis with three conditions of traveling, the beginning of turning the pot and the beginning of holding the pot, which indicates the link type arm body meets the strength requirement.Electro-hydraulic system of the arm body is a important part to ensure the Slag pot carrier performance, safety and reliability. The electro-hydraulic system is a load sensing system composed by load sensing variable pump and PSV multi-way valve. Design balanced valve to balance the negative load, and double-pipe explosion-proof valve to improve system reliability. By calculating the parameters of the electro-hydraulic system, identify the structure size, work pressure and flow rate of the cylinder, and by which select the type and study the features of variable pump, control valve, balanced valve and explosion-proof valve. Using the fault tree analysis, study the reliability of the electro-hydraulic system, and do qualitative and quantitative analysis to the fault tree, which provides a theoretical reference to predict and improve the reliability of the Electro-hydraulic system.Using AMESim software, model and simulate the load sensing variable pump, pressure compensation valve and balanced valve to match the actual components. Model the arm body to match the actual structure. Model and simulate the whole electro-hydraulic system of arm body with two situations of holding and turning pot to gain the curves of work pressure, flow rate, displacrment of ctlinder, and turning angle of the arm body, which validates the rationality of the electro-hydraulic system. Simulate and compair the electro-hydraulic system of link type and no-link arm body to validate the advantages of link type arm body. Debug the arm body and the whole vehicle to validate that the arm body and the whole vehicle meet the design requirements. |
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