电动葫芦运行时出现异响 There was a sound electric hoist running 电动电葫芦的很多故障，例如控制电器、电机或减速器等出现的故障，往往伴随着异常噪声，这些噪声的位置及高低和音别随故障原因不同而有区别，检修时，要多听多看，可以利用或根据故障响声特点，确定发出响声位置，寻找和检修故障。 Electric electric hoist a lot of trouble, for example, the control of electrical appliances, motor and reducer, etc appeared fault, is often accompanied by abnormal noise, the noise of the position and height and don't have the difference, with the cause of the problem in different maintenance, want to listen to see more, can make use of, or according to the fault characteristics of noise, determine a sound position, looking for and repairs. ①异常噪声发生在控制回路上，发出“哼”的噪声，一般是接触器出现了故障（如交流接触器触头接触不良、电压等级不符、磁芯被卡等等），应对故障接触器进行检修，无法检修时必须更换，处理后，噪声自行消除。 (1) abnormal noise occurred in control circuit, a noise, "hum" is generally contactor failed (such as ac contactor contact discrepant poor contact, voltage grade, magnetic core, CARDS, etc.), to deal with fault contactor for maintenance, must be replaced when unable to repair, after processing, to eliminate the noise. ②电机发出异常噪声，应立即停机，检查电机是否单相运转，或轴承损坏、联轴器轴心不正及“扫膛”等故障，这些都会使电机有异常响声，不同故障的响声位置及高低和音别不同，单相运转时，整个电机发出有规律忽强忽弱的“嗡嗡”声；而轴承损坏时，会在轴承附近，发出伴随着“咯噔-咯噔”的“嗡嗡”声；而联轴器轴心不正时，或电机轻微扫膛，整个电机发出极高的“嗡嗡”声，并不时伴随着尖锐刺耳的声音。总之，应根据噪声的不同，找出故障，进行逐项检修，恢复电机正常性能，当电机故障未处理时，禁止使用电葫芦。 Abnormal noise, (2) motor, should immediately stop, check whether the motor is single-phase operation, or bearing damage, coupling axis is not straight, and the chamber "sweep", these will make the machine has abnormal noise, the noise of the different fault location and high and low and don't sound different, single phase operation, the motor from regular strong and weak "buzzing" sound. And bearing damaged, near the bearing and issued with "hitched - hitched" "buzzing" sound. And coupling axis is not timing, or motor slight sweep chamber, a high "buzzing" sound, the motor is not associated with shrill voice. In a word, should according to different noise, the find out fault, item by item, inspection, to recover the normal performance of the motor, when the motor fault unprocessed, banning the use of electric hoist. ③异常噪声从减速器发出，减速器出现故障（如减速箱或轴承缺润滑油、齿轮磨损或损坏、轴承损坏等等），这时应停机检查，首先确定减速器的减速箱或轴承在使用前是否加了润滑油，使用中是否定期更换润滑油，如没有按要求润滑，减速器不仅会产生过高的“嗡嗡”声，还会过度磨损或损坏齿轮及轴承。为了防止故障扩大，无论减速器齿轮过度磨损或损坏，还是减速器轴承损坏，都需要立即拆卸检修或更换，消除故障，降低噪声。 (3) abnormal noise from the gear reducer, gear reducer failure (such as reducer or lack of lubricating oil bearing, gear, wear or damage to the bearing damage, etc.), then should stop check, first determine reducer reducer or bearing before use if the lubricating oil, oil change regularly in use, such as no lubrication, according to the requirement reducer will not only produce high "buzzing" sound, gear and bearing excessive wear or damage. In order to prevent failure, regardless of the gear reducer, excessive wear or damage to or reducer bearing damaged, need to immediately remove the repair or replacement, eliminate the fault, reduce the noise.