The sounds unusual wire rope gourd Troubleshooting
The sounds unusual wire rope gourd Troubleshooting
Electric wire rope hoists are mechanical items, often because of the long time operation and use of certain adverse environment, there will be a lot of failure, such as the failures of the control electronics, motor or reducer, often accompanied by abnormal noise, these noise location and the level and tone do not depend on the cause of the malfunction and differentiated overhaul, to hear and see more, you can take advantage of sound characteristics according to the fault, OK beep position, 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) unusual sounds from the reducer, reducer failures (such as gearboxes or lack of lubrication, bearings abnormal noise, wear or damage to the gear, bearing damage, etc.), then you should turn off the check, first determine the reducer gearbox or bearing whether The need to increase the use of lubricating oil, whether the use of lubricants regular maintenance, no lubrication, deceleration will not only generate excessive "buzzing" sound, and excessive wear or damage to the gears and bearings. Secondly, brake stopping distance than the length of the long-term decline in demand for electric hoist applications, excessive wear of the brake ring, the spring brake pressure is reduced, reducing the braking force. Solutions adjustment bolts or replace the brake ring. If the motor temperature is too high, you should first check whether or not to use the gourd overload, leading to electric. If the motor is not overloaded, still fever, should check that the motor bearing damage, you should also check whether the electricity required to meet the job requirements caused one of the reasons, which is heated by electricity. Motor running, brake clearance is too small, there is considerable friction, friction heat, also produce the additional load caused by the speed of the motor to reduce fever, you should stop working, re - adjust the brake off.