Tongxiang is professional conveyor equipment manufacturers in China.Large distance belt conveyor system is a large capacity, long distance, high speed belt. With the continuous improvement of the reliability and economic requirements for long-distance belt conveyors, its design point of view is gradually developing. Advanced design point of view, trying to reduce running resistance, reasonably determine the safety factor of the conveyor belt, using controllable starting, braking device to start up smoothly, braking, using the viscoelastic theory of the conveyor belt for dynamic analysis, forecasting the working condition of the conveyor And optimization.

Large distance belt conveyor system use high precision rollers and high performance conveyor belts to reduce running resistance Under normal conditions, the main resistance of the belt conveyor is composed of the roller rotation resistance and the conveyor belt forward resistance. In recent years, the structure of the roller has been innovated, especially using high-performance special bearings and high-precision sealing rings, which effectively reduces the rotation resistance of the roller. At the same time, the surface glue and core material of the conveyor belt are also constantly updated, so that the conveyor belt has certain groove formation and certain rubber surface hardness and wear resistance, which effectively reduces the depression resistance of the conveyor belt. A more accurate calculation method for the main resistance is proposed based on the rotation resistance of the upper and lower branch idlers and the indentation resistance of the conveyor belt. For long-distance belt conveyors, the main resistance has a great influence on the whole machine. The rotation resistance of the used roller and the indentation resistance of the conveyor belt should be determined in advance, so that the main resistance of the conveyor can be accurately calculated. Reasonable determination of the safety factor of the conveyor belt safety factor conveyor belt has a great impact on the economics and reliability of the belt conveyor. In the past ten years, the experimental research on the fatigue strength of conveyor belts abroad showed that by improving the manufacturing process and jointing process of steel cord conveyor belts. For steel cord conveyor belts, the fatigue strength is increased by 45%-55%. This reduces the dynamic safety factor recommended in the DIN standard to 38-4.8, and the steady-state safety factor is reduced to 54-7.6. The conveyor belt is introduced. Based on the concept of fatigue strength, the safety factor of the conveyor belt related to the joint and the safety factor of the conveyor belt related to the service life and working conditions are proposed. The fatigue strength safety factor of the conveyor belt is the fatigue strength of the conveyor belt with safety factor.

Large distance belt conveyor system use dynamic analysis to optimize the design of large belt conveyors The dynamic analysis of so-called belt conveyors is based on the mechanical properties of the viscoelastic body integrated into the braking characteristics of the drive, the mass distribution of each moving body. , the slope of each section of the line, various motion resistance, the initial tension of the conveyor belt, the change of the twist of the conveyor belt, the form and position of the tensioning device and the tension and other factors, the mathematical model of the conveyor dynamics is obtained. The speed, acceleration, and tension that occur at different points on the conveyor belt during the start-up and braking of the conveyor. It is predicted that the dynamic hazard and unsafeness of the conveyor designed according to the traditional static design method should be improved and adjusted to determine the optimized design and control parameters. Dynamic analysis can be used to identify the dynamic hazards that may occur during the start-up and braking of large belt conveyors, such as the dynamic peak tension of the conveyor belt, the low tension of the conveyor belt under dangerous conditions, and the tensioning of the heavy hammer. The displacement is beyond the design stroke. For these dangerous situations, technical improvement measures should be taken to adjust such as adjusting or changing the driving device and its braking characteristics, installing braking devices in appropriate positions, changing the form or position of the tensioning devices, etc. Through these improvements, the conveyor is optimized.

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