Wire rope hoist abnormal sound failure analysis and troubleshooting
Wire rope hoist a lot of failure, such as control of the electrical motor or reducer failure, often accompanied by abnormal noise, the location and the level of the noise and sound with differ on the cause of the malfunction, overhaul, to hear and see morecan take advantage of, or based on the the failure sound characteristics to determine beep location to find and repair the fault.
(1) abnormal noise occurs in the control loop, issued a "hum" noise, generally appear fault (AC contactor contacts poor contact, voltage level does not match, the core is the card, etc.) is a contactor failure resiliency contact overhaul can not repair must be replaced after processing, the noise itself eliminate.
(2) Motor unusual noise, immediately stop, to check whether the motor is single-phase operation, or bearing damage coupling axis errors and "sweep chamber" failure, these will cause the motor abnormal sound, the sound of the different fault position and the level and tone do different, single-phase operation, the whole motor issue with the law suddenly strong suddenly weak "buzzing" sound; bearing damage in the vicinity of the bearing, issued accompanied with "GeDeng - slightly thump" of "buzz" sound; coupling axis errors, or motor slight sweep chamber, the whole motor issue high "buzzing" sound, not when accompanied by the shrill sound. Short, depending on the noise, to find fault, itemized repair, restore motor normal performance, when the motor failure untreated, prohibit the use of the gourd.
(3) abnormal noise issued from the gear reducer failure (lack of lubricant, such as gearbox or bearing gear wear or damage, bearing damage, etc.), then down to check, first determine the speed reducer gearbox or bearing lubricant is added before use, whether the use of regular replacement of lubricating oil, as does not require lubrication, reducer will not only generate excessive "buzzing" sound, but also excessive wear or damage to the gears and bearings.