3, rear axle abnormal sound (1) uneven tooth gap sound. When the locomotive starts or when the speed of the vehicle changes rapidly, rhythmic "bang and bang" sounds appear. At the same time, when the locomotive turns, there is a chattering phenomenon in the back of the vehicle body, which is usually caused by the uneven backlash of the rear axle gear of the locomotive. The loose shell joint bolt loose or driven bevel gear ring rivets loose, so that when the gear work yaw, runout, caused by large or small tooth gap, but also caused by the direct cause of uneven tooth gap. (2) The tooth noise of the main reducer gear teeth is damaged. When the locomotive is in motion, there is a "bang, bang" or "bang and bang" sound, and there is also a metal friction sound. When the vehicle speed increases, the sound increases, and when the sound of the neutral gear decreases or disappears, the main deceleration is generally made. Gear surface damage: If the locomotive suddenly appears strong and rhythmic hum and buzzing sounds, the noise will disappear when the neutral gear glides, and then the main gear reducer will be damaged or the gear teeth will be damaged (3). The sound of axle shaft casing bending, when the locomotive is going to drive, when the speed is close to 50km/h and the throttle is retracted, the rear axle appears “Wulong and Hulun†sounds, and the rear axle shakes at the same time. Caused by bending deformation of the tube.
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