Why doesn't the inclination angle of the belt conveyor be the same as the accumulation running angle?

Many customers inquired: Why does the inclination angle of the belt conveyor be the same as the accumulation running angle and it does not work? We can analyze that flat belts without baffles can transport materials, mainly relying on the static friction between the materials and the conveyor belt. The force analysis of the material on the conveyor belt shows that the maximum static friction force and the normal support force form a friction cone. When the gravity direction of the material falls within the range of the friction cone, the material meets the conditions for forming friction and self-locking. Keep relatively static with the conveyor belt under other auxiliary conditions. If the inclination angle of the conveyor belt is too large, causing the gravity direction of the material to deviate from the friction cone, the material will fall under the action of gravity, and the conveyor belt will fail (the essence is that the component force of gravity in the direction of friction is greater than the maximum static friction, and the material is subjected to external forces Not zero). The material accumulation angle is defined as the angle between the vertebral generatrix formed by the material pile and the horizontal ground when the material is stacked in a stable manner. It can be known in the same way as the conveyor belt that the accumulation angle is also related to the friction cone (upper limit u003d 90°-½ friction cone angle, Here, the friction cone is formed by the maximum static friction between the materials and the normal support force). If the stability condition is not met, the materials on the cone surface will slide to the bottom until the cone surface angle meets the self-locking condition again. It can be seen that the size of the material accumulation angle basically reflects the value of the material friction self-locking angle (ignoring the difference in the friction coefficient between the material-material and the material-loading conveyor interface). When the inclination angle of the conveyor belt ≥ the accumulation angle, the material is not blocked. The conveyor belt of the board cannot meet the self-locking conditions, and it will slide down the material belt, and the transmission belt will fail. So if you are not quite clear about these terms, you can consult our technical customer service staff and let them help you with further analysis and narration.

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