The adjustment method of the tightness of the fan belt of the diesel generator is: press or pull the belt with 30-50 N force in the middle of the belt, and the belt is 15-20 mm away from the original position. The tightness of the belt is considered normal, otherwise it should be adjusted. The method can be divided into three types according to different structures: one is equipped with a tensioning wheel structure. Loosen the fixing nut, turn the adjusting screw, and move the tensioning wheel up and down to achieve the required tightness; The second is that the fan and the generator share a belt drive, and the generator bracket can be moved to change the position of its belt pulley to achieve the required tightness; Third, the belt pulley is composed of two halves. First loosen the fixing bolts, and then rotate the adjustable half of the belt pulley to change the width of the resultant belt pulley, so as to lift the V-belt to achieve the required tightness. If the belt is seriously worn or broken, it should be replaced in time. Some diesel engine fan belts are two, and they should be replaced at the same time to avoid failure caused by uneven tightness and force.

风扇皮带保持正常的紧度, 以保证冷却来统正常工作。如果皮带过松, 容易打滑, 使风扇和水泵转速降低, 引起风扇鼓风童不足, 水泵泵水能力降低, 导致散热不良、机温过高。生产实践中常发生水箱高温不下的情况, 停车检查, 调整皮带紧度, 机温过高的现象即刻消除。但如果皮带过紧也会使轴和轴承磨损加剧。同时, 三角皮带两边抖面与皮带轮糟过分摩擦, 易于损坏皮带、消耗功率。因此, 在柴油机使用过程中, 应及时检查风扇皮带的松紧程度。以便保证三角皮带正常工作, 改善柴油机的整机性能。

The fan belt shall be kept in normal tightness to ensure the normal operation of the cooling system. If the belt is too loose, it is easy to slip, reducing the speed of the fan and water pump, causing insufficient fan blower, reducing the water pump capacity, resulting in poor heat dissipation and high machine temperature. In production practice, the high temperature of the water tank often occurs. Stop the machine for inspection, adjust the belt tightness, and immediately eliminate the phenomenon of excessive machine temperature. However, if the belt is too tight, the wear of shaft and bearing will be aggravated. At the same time, the buffeting surfaces on both sides of the V-belt rub excessively with the pulley groove, which is easy to damage the belt and consume power. Therefore, check the tightness of the fan belt in time during the use of the diesel engine. In order to ensure the normal operation of V-belt and improve the overall performance of diesel engine.

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