Gear motor when the gear reduction motor attack problems, makes primary may think of looking for a professional maintenance staff to dismantle machine repair, in fact, when there is wrong with the machine, let's first to make a check list. Listen to the sound will discriminant geared motor starts, the reason of abnormal vibration and noise problem, the following to listen to how old driver said gear motor manufacturer. Listen to sound mainly bearing presence of noise, we can buy a listening bar in the market, the other end of the stick with resonators device, or use a single metal bar to hear the sound,1)Listen to the gear reduction motor bearing noise. Normal noise & ndash; —There is no high and low metal sound. Retainer ring & ndash; —Produced by roller or ball bearing with retainer rotating light & other; Pumping miles pumping miles & throughout; Sound and has nothing to do with the speed of irregular metal sound. If this sounds after add lubricating oil, shrink or disappear, then has no effect on operation. Crack sound & ndash; —Bearing raceway surface, ball bearing, roller surface crack of announced that sound, with its cycle speed is proportional to the relationship. Cracks, bearing attack must be developed to overheat, sintering was quickly replaced. “Crunching & throughout; Sound & ndash; —Most is announced in the roller bearing ring. “Crunching & throughout; Sound more will disappear after add lubricating oil. A & other; Crunching & throughout; Sound without abnormal vibration and temperature together, the machine can still remains the same use. Roller falling sound & ndash; —This is geared motor in the horizontal rotating attacks, in normal work inaudible, low speed can be heard, when they are about to stop when special clear sound. This & other; Shell holder & throughout; Sample sound no obstruction to work. The dust acoustic & ndash; —Is between the raceway surface and roller or ball sounds announced when embedded in the dust. Dust acoustic onset should be unwrapped bearing parts, after washing clean, wipe out the lubricating oil with sprue stubborn dirt, grime of lubricating oil injection gun etc, in order to eliminate the causes of congestion again. (2)Listen to the gear reduction motor rotor noise. Rotor noise sound is usually a fan, the brush friction sound, occasionally attacks as big as the drums sound. This is in a sudden start, stop, especially in reverse connect braking renewable power braking frequently, due to its yield torque when speed of add, subtract, cooperation loose core and axis, and the key serious scratch. Coupling cooperation or pulley bearing and shaft is too loose; Coupling bolts wear, deformation; The oil in the gear coupling and tooth wear; The belt is flabby, wear and tear. These factors are likely to cause geared motor noise. (3)Listen to the gear reduction motor electromagnetic noise. General internal gear reduction motor electromagnetic noise, more or less will disappear when the detection power. Electromagnetic noise most of the electromagnetic vibration and noise outside, the stator core resonance announced. Electromagnetic noise caused by the larger elements are: uneven air gap, loose core, current imbalance, higher harmonic current. When gear reduction motor start again appear abnormal vibration and noise, perhaps within a short time of gear motor, there is no serious harm, but a long time, will have serious consequences, so we should timely find out the gear reduction motor in the cause of the abnormal vibration and noise, and handled in time, otherwise the time long will damage the gear reduction motor.
