Mill bearing temperature through high reason and disposal methods

In recent years, the application range of the mill from time to time extension, it not only be used in the pharmaceutical industry, in the chemical, food industries has also become a kind of ideal type of crushing equipment. However, like other pharmaceutical equipment, crusher is faced with some problems. Among them, the bearing temperature is a big problem to the customer.     Before discuss the problem of bearing temperature, must first understand the working principle of mill. Crusher is mainly applied activity tooth plate and fixed means of high speed relative motion, make shattered by the tooth impact, friction and impact among the materials themselves in collaboration with crushing. Fuselage structure simple, consolidate, smooth operation, crushing effect is good, the crushed material can directly by the host grinding cavity out, after a change in different aperture size of mesh, while the machine for stainless steel. Casing wall all finishing to smooth appearance, change the previous models wall roughness, the phenomenon of accumulated powder, medicine, food, chemical and other consumer spending more fit country norm, so as to reach the GMP request.     The elements of bearing temperature has a lot of, for example, when two bearing seat up and down, or with different heart crusher rotor motor rotor, can make the shaft receiving additional impact load, thus provoking bearing overheating. In this case, experts say, demand immediately stop cleaning, avoid the early damage of the bearing.     Bearing can prolong the life of the use of the mill, and the bearing inner smooth oil too much, too little or aging is also provoked bearing overheating and damage the main reason. At this point, the operator needs according to use smooth filling oil quantitatively book request on time. Smooth common, accounting for 70% of the bearing space - 80%, too little or too much are not conducive to smooth bearing and heat transfer.     In addition, the matching of the bearing cover and shaft tight, bearing and shaft fit too tight or too loose will get overheated bearings. If appear this kind of problem, when the equipment operation, will send out the friction noise and clearly. At this point, the operator should stop immediately remove the bearing, finishing friction parts, then according to the request to stop the assembly. 'In fact, the bearing is easy to attack after working for a long time the phenomenon of overheating, if once appear this phenomenon will damage early treatment to avoid attack. 'Said grinder manufacturer.     The author understands, high bearing temperature through is crusher common problem, is also a great problem. If temperature increases quickly, beyond specification will incur equipment stoppage or is reduced load operation, will bring damage to equipment, reduce the use of the bearing life, increase equipment maintenance costs affect the economic benefits of enterprises. The rapid discriminant problem, therefore, to take appropriate measures to ensure the normal order of the crusher, continuous and running safely.     To ensure the normal work of the bearing, the operator needs pay attention to check the work. Conditions usually demand check these points. Smooth oil bearing quality: to check whether there are changes, agglomerate, adverse conditions such as impurities, this is one of the important according to the discriminant bearing damage reason. To check the bearing have chewed and wear; Check the bearing inner and outer ring, rolling body, adhere to the appearance of the brightness and presence of cracks, rust, discoloration defects such as peeling, pits, overheating, measurement of bearing clearance can limit; Look for wear, pit shaft sleeve, peeling, if there is more than love should be a change in the new bearing.     Bearing with: when cooperate with too loose, mating surface will produce relatively sliding, namely creep. Once produced to wear matching surface, creep damage of shaft or housing, and wear into the bearing internal powder and fever, vibration and destroyed. Therefore, the operator should think about the nature of the bearing load, size, temperature conditions, the rotation of the inner ring outer shape factors of various conditions.     Bearing parts fit clearance adjustment: when the clearance through the hours, oil will reduce, too late to take away the heat generated by the friction, the temperature of the bearing will be further increased; When the clearance is too large, will change the bearing dynamic characteristics, provoked the rotor unsteady operation. To this, the expert initiative, based on the using status of mill and the use conditions to choose the appropriate bearing clearance.