When the electric drum is in use, its stress is a very important manifestation. In order to improve work efficiency, if everyone can master these operational skills, it will be very helpful for our future operations. Below, the editor will briefly introduce the force analysis of electric drum.
In a belt conveyor, the electric drum is equivalent to the driving wheel in the transmission belt, while the driven roller is equivalent to the driven wheel. When the driving drum works normally, it rotates under the input torque at the shaft end, and is also affected by the friction between the conveyor belt and the drum, as well as the pressure of the conveyor belt on the drum.
1. Electric drum is a composite component assembled and welded from cylinders, connecting plates, and shafts. The tension and torsional force of the conveyor belt used for placement are transmitted to the shaft together, and the torsional force is converted into complex internal stresses acting on various parts of the drum. The stress on each component is different in direction and nature.
2. The tension difference between the two ends of the electric drum conveyor belt is significant, and the tension at the impact point is much greater than that at the starting point. During the operation, the radial load on the surface of the driving drum follows an exponential law from loose to tight.
3. The tension of the conveyor belt, the rotation angle of the drum shaft, the stiffness of the connecting plate, and the thickness of the drum all determine the internal stress. Analysis and calculation show that when the cylinder wrap angle is 60 degrees, the internal stress of the cylinder is relatively high.
4. Under heavy load conditions, the main damage form of the electric drum is the bending deformation of the shaft, which leads to cracks in the welding parts between the connecting plate and the cylinder body, and between the hub and the connecting plate. Simply increasing the thickness of the connecting plate to increase its strength usually does not achieve the goal. On the contrary, it may also cause cracks and reduce the service life of the connecting plate.
5. When the belt tension acts on the drum, the drum shaft and every part of the drum will move. The structural analysis of stress, deformation, and displacement of electric drum determines the strength calculation of roller components.
The above is the content of this issue's news and information. When studying the force analysis of electric rollers, it is important to learn to carefully understand the relevant operating techniques and methods, and use them according to the correct operating procedures. This can not only improve work efficiency, but also greatly extend the service life of the equipment. We hope everyone will study seriously.
Editor: Chihiro
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