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一台XSM222型振动压路机,采用力士乐振动马达,工作近2 000 h后,突然出现振动轮不起振。触摸振动轮两侧轴承温度正常。检查振动轮的油位,也正常。拆下振动马达试验,证明振动马达能正反转,工作正常。然后在未安装马达的情况下,前后移动压路机,发现和振动马达相连接的花键套随着振动轮前后移动且可以整圈旋转。说明振动轮的圆周运动已经通过振动轮—轴承套—轴承—偏心块—驱动轴—花键套反映出来,原因可能是轴承烧死,或者偏心块被卡住等。
An XSM222 Vibratory Roller, with Rexroth vibration motor, work nearly 2 000 h, the sudden emergence of vibration wheel can not afford vibration. Touch the vibration wheel bearing temperature on both sides of normal. Check the vibration of the oil level, but also normal. Remove the vibration motor test to prove positive and negative vibration motor, working properly. Then, without installing the motor, move the roller back and forth to find that the spline sleeve connected with the vibration motor moves back and forth with the vibration wheel and can rotate the whole circle. This shows that the circular motion of the vibration wheel has been reflected by the vibration wheel - bearing sleeve - bearing - eccentric block - drive shaft - spline sleeve, the reason may be bearing burned, or eccentric block is stuck and so on.