Study On The Structure And Characteristics Of Driving Wheel Of Rope Conveyor

Belt conveyor is one of the main means of transportation for various minerals and bulk materials.However,due to its special structure,it has a large energy consumption problem due to the pressure depression resistance in operation and the rotation resistance between the idler and the belt.Under the current environment of high-quality economic development,it is urgent to solve the problem as soon as possible.In the long-distance transportation,the general belt conveyor has a high demand for the strength of the conveyor belt,which directly affects its safety and economy.In this paper,a new type of rope wheel rail conveyor is put forward,and its basic structure is designed by using modern design theory: on the steel wheel rail operation system of the conveyor,the trolley with equal spacing is connected by steel wire rope;the steel wire rope drives the trolley wheel to roll along the guide rail,with large contact stiffness and small rolling friction coefficient.As the main traction mechanism,the steel wire rope makes the whole machine more efficient and lightweight,saves materials and reduces the energy consumption of the conveyor.In the normal operation process,the trolley and the belt are relatively static,and the static friction between the trolley and the belt effectively reduces the belt deviation of the long-distance belt conveyor.When the belt is pulled by the car,it transfers the traction force by friction between the belt and the U-shaped support frame of the car and runs together.Because of the spacing distribution of the trolley,the sectional traction is realized,and the conveyor belt with lower strength can be selected when the conditions are met,so the cost is reduced correspondingly.Due to the distribution of conveyor trolley support,section traction,belt tension difference is small.This multi-point drive method can save energy and reduce the loss of the machine.The interaction between the trolley and the belt forms a multi-point drive,which can ensure a large traction output.For the solution to the long-distance transportation problem,the conveyor trolley can be added to the middle conveying section as the driving part.In addition,the problem between the tension of the conveyor belt and the long-distance transportation can be solved well.The paper also studies:(1)some problems of the rope rail conveyor in the turning,and analyzes the bending radius,as well as the resistance of the main parts and structures of the conveyor in the turning.Based on this improvement and optimization,the structure of the rope rail conveyor is designed.(2)Study on the kinematics of the steel wire rope on the evenly distributed open wheel for driving.In this paper,the fluctuation of velocity and acceleration is analyzed theoretically,and the relationship between the fluctuation and the opening section of the real arc section of the opening wheel is discussed.Thus the movement characteristics of the conveyor are obtained.(3)Aiming at the problem that the physical quantity on the contact interface of rope and wheel is difficult to measure accurately,a simplified three-dimensional finite element contact model of 1 × 6 steel wire strand wound and bent on the uniformly distributed open-ended driving wheel is developed.The movement characteristics of the rope on the driving wheel of the train set rope rail conveyor and the mechanical characteristics of the friction interface between the rope and the friction pad are studied.ABAQUS / explicit is used to carry out the finite element analysis Meta analysis and simulation.The results show that the tension and stress of each strand of wire rope vary with the fillet of friction pad,and the friction pad with different groove diameter has different effects on the traction capacity of wire rope and the contact stress of friction pad.