The vibration acceleration of the vertical gearbox in the polymerization reactor is quite high, and the noise level is also high. Could someone please offer some advice?
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The vibration acceleration of the vertical gearbox in the polymerization reactor is relatively high, reaching 11–15 mm/s2, while the vibration speed is 1–2 mm/s. The gearbox generates significant noise, with intermittent buzzing sounds. Its temperature is 3–5 degrees higher than that of the gearboxes in other normal polymerization reactors. The coupling between the vertical motor and the gearbox is of the elastic plum blossom pad type； May I ask: What are the reasons for the high vibration acceleration and noise in the transmission?
Look for the causes in several aspects such as the gearbox, pipeline stress, and supports.
What are the speed and power respectively? ? ?
Motor speed: 2980 r/min; after speed change: 80 r/min
Try to find a way to increase the stiffness of the gearbox bracket.
The vibration acceleration reaches 11–15 mm/s², while the vibration speed is 1–2 mm/s. The gearbox is very noisy, with intermittent humming sounds; its temperature is 3–5 degrees higher than that of the gearboxes in other normal polymerization reactors. Based on this, it seems to be a problem with the gearbox. Is it a cycloidal gearbox or a helical gear gearbox?
Has the radial swing of the shaft been measured? Factors affecting reducers ； 1. Problems with the reducer itself. 2. The swinging of the shaft causes damage to the reducer gears and bearings. 3. Does the mixer have bottom bearings? The liquid level in the tank, the timing of starting the mixing, and the speed at which it starts.
There are multiple sources of vibration and noise in reducers: moving from top to bottom, they can be caused by the motor bearings, couplings, the reducer body, the lower couplings, the material inside the tank, or mechanical issues. Therefore, there could be many reasons for your problem. We will merely offer a general opinion: for the transmission between the reducer and the motor, a rigid connection should be used as much as possible ； Check the condition inside the polymerization reactor in a timely manner ； The temperature of bearings in various sections must be monitored ； Make sure not to get the grease model wrong.
The motor and reducer are connected using plum blossom washer connections; previously, they were connected with clamping sleeves； The maximum value for the gearbox is at one point, roughly at the location where the final gear teeth engage.
The motor and reducer are connected using plum blossom washer connections; previously, they were connected with clamping sleeves； The maximum stress point in the gearbox is located around the area where the final gear teeth engage; the final stage involves the engagement of spur gears