How to solve the shaker bearing overheating

How to solve the shaker bearing overheating

Vibrating screen bearings are working in the case of heavy-duty, large centrifugal force, so the heat is usually quite obvious. Typically, empty shaker test 4h, the bearing temperature should be maintained at 35 ~ 6O ℃. If the bearing temperature is high, it may be caused by the following reasons.

(1) bearing model selection unreasonable

If you use a shaker during the frequent occurrence there is no obvious improvement exciter bearing overheating and refueling site, it is likely that the bearing model selection caused unreasonable. The main reasons for this situation is bearing radial clearance is too small. High bearing operating frequency vibration sieve, carrying a very large load, but load is fluctuating load, if the bearing radial clearance is too small, there is no way to afford high-frequency heavy load, so choose when you need to select a large bearing clearance.

(2) lack of space bearing thermal expansion

Mainly when long production time, bearing high temperature, it will use the bearing damage. The main reason is too tight, leaving no time for the shaft bearing outer race out of cover to suppress thermal expansion of space, when the temperature rises axis expansion, the bearing cap hilarious, no axial clearance, gland and bearing There must be a clearance between the outer ring, in order to ensure a certain degree of heat and axial bearing normal traverse. The gap can be adjusted by the seal between the cover and the bearing pad.

(3) bearing oil or less oil contamination

Bearing short of oil or oil too much, bearing occurs when the long-term situation does not check the oiling bearing short of oil phenomenon, the phenomenon will have fever, severe damage to the bearings. To resolve this behavior usually open to regular inspection cover, timely oiling, refueling oil can not fill the entire cover, set aside one-third of the space. Then the need for bearing oiling, cleaning, replacement of oil and seal, check the oil quality and oil filling situation.

(4) the outside world into the slime

External harsh environment, slime into the inner bearing cap is one of the reasons bearing fever, which usually should always check the seals bearing to prevent outside slime and water into the interior of the bearing.