输送带知识（Conveyor belt knowledge）.docVIP

输送带知识（Conveyor belt knowledge） The conveyor belt is the most expensive and the most durable component in the conveyor. During the operation of the conveyor, the conveyor belt is subjected to a variety of different properties and sizes of the load, in a very complex state of stress. Conveyor belt damage form is the most typical work surface and edge wear; by the bulk ore rock impact breakdown, tearing and peeling; core by Piccolo and roller group by repeated bending stress caused by fatigue; in environmental medium, caused by the strength index decreased and aging etc.. Calculations show that the conveyor belt costs about half of the cost of all the equipment in the conveyor. Therefore, according to the conveyor operating conditions; select the appropriate conveyor belt, and strengthen in the operation and maintenance management, prolong the service life, improve the work efficiency of the conveyor, is of great significance to reduce the cost of production of conveyor. Rubber belts for general belt conveyors (Figure 1-2). Rubber belt is suitable for working environment. The temperature is between -10 ~ 400 +, and the material temperature should not exceed +500 centigrade. When the temperature is above 500 degrees, the elasticity of the rubber band begins to disappear. If the temperature is too low, the adhesive tape hardens and cracks occur. When the temperature is above +900, fire belt should be used. The cold belt should be used when the temperature is lower than -15 to -550 degrees centigrade. The rubber belt is detailed (2) Rubber belts are most widely used in practice. Its basic structure is shown in figure 1-2a. It is made up of two parts: the core and the covering rubber. The core is the framework of the adhesive tape, which acts as a load, transmission, traction force and the impact of the material on the adhesive tape at the loading point. Ordinary rubber belt core is composed of multilayer rubberized canvas, with core material can also be cotton, Vigny Lun,