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1.故障现象1台某型摊铺机电加热发电机传动胶带工作时经常出现异响。停车检查时,发现胶带上有裂纹、弹性减小。使用胶带张紧装置张紧后,胶带又出现尖锐响声。反复张紧后,胶带断裂,影响摊铺机正常工作。2.原因分析该发电机胶带传动系统由主动轮、被动轮、张紧轮、传动胶带及机架等组成,如图1所示。主动轮直径d_1为130mm,转速n_1为2300r/min;被动轮直径d_2为166mm,转速n_2为1800 r/min;张紧轮直径d_3为80mm。当传动胶带需要张紧时,旋转张紧轮下方丝杆,使张紧轮向上
1. Symptom A certain type of paver electric heating generator drive belt often appear abnormal sound. Parking inspection, found on the tape cracks, reduce flexibility. Tape taped again, the tape again sharp sound. Tension repeatedly, the tape broken, affecting the normal paver work. 2. Analysis of the reasons The generator belt drive system from the drive wheel, driven wheel, tension wheel, drive belt and rack and other components, shown in Figure 1. Driving wheel diameter d_1 130mm, speed n_1 2300r / min; driven wheel diameter d_2 166mm, speed n_2 1800r / min; tension wheel diameter d_3 80mm. When the transmission tape needs to be tightened, rotate the screw under the tension wheel to make the tension wheel up