Thread Content
Rollers are used in many fields and industries; these rollers can be powered or unpowered. Rollers with different performance characteristics and functions serve different purposes. For example, a power-free roller – how does it handle forces? Before using it, a detailed analysis of it is required. A non-powered drum is essentially a composite component made up of a drum body, a coupling plate, and a shaft that are welded together. In terms of function, both the tension of the conveyor belt and the torsional forces need to be transferred to the shaft, so as to transform the more complex internal stresses acting on various parts of the non-powered drum. Meanwhile, the stresses on each component differ in both direction and nature. There is a huge difference in the tension at both ends of a power-free roller conveyor belt; the tension at the point of impact is greater than that at the point of departure. When in operation, the surface of the idler roller is under pressure, and its radial load increases from the loose side to the tight side, following an exponential pattern as well. Belt tension, the angle generated by the shaft of the idler drum, plate stiffness, the thickness of the cylinder, etc., are all factors that determine the internal stresses. In other words, the internal stress in this cylinder is greatest when the angle of enclosure by the idler rollers is 60 degrees. Damage to the idler drum without power is also evident under heavy loads, as the bending deformation of the shaft causes cracks to appear at the welds between the flange and the drum shell, as well as at the welds between the hub and the flange. Simply increasing the thickness of the backing layer in order to boost strength generally fails to achieve the desired outcome. Conversely, cracks will also occur, thereby reducing the service life of the socket. The belt tension acts directly on the idler rollers, and the shaft of the roller as well as each component of the roller can experience displacement. The structural analysis of the force-induced deformation and displacement of the idler drum determines the strength calculation for the drum components. If you are not familiar with how to use a gravity-fed roller, it is best to first analyze and understand the forces acting on it, so as to conduct a proper analysis and enable you to use the roller easily and leverage its true capabilities.