Abstract
Conveyors are one of the important components of transport systems and are used in almost all branches of mechanical engineering. This paper investigates the dynamics of the intermittent motion conveyor mechanical system. The mechanical transmission is a planetary mechanism with elliptical gears, in which the intermittent motion of the output shaft is provided by a variable gear ratio of non-circular gears. A single-mass dynamic model is built by reducing the masses, forces and moments to the initial link, which is the input shaft of the mechanism. The solutions of the equations of initial link motion were obtained using two methods, the energy-mass method and the third-order Hermite method. Dynamic studies by the energy-mass method made it possible to determine flywheel moment of inertia to reduce the coefficient of initial link rotation irregularity. The convergence of the functions of the initial link angular velocity obtained by both methods was confirmed. The results can be used for further force analysis, strength calculations, design and manufacture of the conveyor.
Highlights
Transportation structures consisting of conveyors and their systems are widely used in various branches of modern industry: coal, mining, electric power, machining, chemical, food and many other fields [1,2,3]
The belt is the weakest link of conveyor, a large number of papers are devoted to the strength calculations of the belt [6,7,8,9,10], as well as the diagnostics of belt conveyors using inspection robots [11] and computer vision [12,13,14,15]
Scholars have been increasing their attention to the research of mechanical transmissions with non-circular gears as the most effective method for realizing nonlinear transfer functions [24,25,26]. This type of mechanical transmission makes it possible to realize the intermittent motion of the output link without breaki2nogf 1t2he kinematic chain
Summary
Transportation structures consisting of conveyors and their systems are widely used in various branches of modern industry: coal, mining, electric power, machining, chemical, food and many other fields [1,2,3]. Many production lines require stopping the conveyor belt for various operations on the product, and this issue can be solved using mechanical drives of intermittent motion. The intermittent motion mechanisms make it possible to have the required duration stops of the output link with constant angular velocity of the input link [19]. Scholars have been increasing their attention to the research of mechanical transmissions with non-circular gears as the most effective method for realizing nonlinear transfer functions [24,25,26] This type of mechanical transmission makes it possible to realize the intermittent motion of the output link without breaki2nogf 1t2he kinematic chain.
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