HRB bearing bearing fault analysis and processing of cement machinery is analysed

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. Bearing is vulnerable parts of mechanical equipment, its operation state are in good condition directly affects the whole performance of the device. Cement machinery and equipment, the equipment failure caused by a rolling bearing early malfunction case a lot. So, find out fault source, take remedial measures to eliminate the fault, is one of the keys to improve system availability. 1 rolling bearing vibration analysis of the failure of rolling bearing and its typical way is to simply occur in rolling contact fatigue spalling. { TodayHot} This peeling, flaking surface area is about 2 was, depth of 0. 2毫米~ 0。 3 mm can monitor tests its vibration. Spalling may occur, the surface of the seat, seat or roller. Among them, the inner race because of the high contact stress, broken happens more. Used in all kinds of diagnosis of rolling bearing, vibration monitoring method is still one of the most main. In general, the time domain analysis method is simple, suitable for small noise interference, is a good way to simple diagnosis; Diagnosis method in frequency domain, the resonance demodulation method is the most mature and reliable, suitable for precision of the bearing fault diagnosis. Time - frequency analysis method and resonance demodulation methods are similar, correctly characterize fault signal time and frequency characteristics, the superiority. 2 damage forms of rolling bearing analysis and remedy ( 1) Overload. Serious surface spalling and wear, shows that the rolling bearing early fatigue failure caused by overload ( In addition to cooperate too tight can also cause a certain degree of fatigue) 。 Overload can also cause a serious bearing steel ball raceway wear, large area of spalling and sometimes accompanied by overheating. The remedy is to reduce the bearing load or improve the bearing capacity. （ 2) Overheating. Roller of raceway, steel ball retainer or change color, show that bearing overheating. A rise in temperature will reduce lubricant effect, make the oil desert formation or disappear entirely. Temperature is too high, can make the raceway and the material of steel ball annealing, hardness decrease. This is mainly the cooling adverse or overloading, under the condition of high speed cooling caused by inadequate. The solution is fully cooling, additional cooling. （ 3) Lower the corrosion of vibration load. In each ball appears on the axial position of the elliptic traces of wear, this shows that when the bearing is not work and did not produce lubricating oil film, caused by external vibration excessive or low load vibration failure. The remedy is to make the bearing vibration isolation or add anti-wear additive in bearing grease, etc. （ 4) Installation problem. Pay attention to the installation work, the installation direction of angular contact bearings, pay attention to and correct. （ 5) The normal fatigue failure. On the surface of any operation, Such as race or ball) Appear irregular material peeling phenomenon, and gradually extended to cause amplitude increase, this is a normal fatigue failure. If life can not meet the requirement of the use of ordinary bearing, only to choose more advanced bearing, or raise the level of bearing specifications, to improve the bearing capacity of bearing. （ 6) Improper lubrication. To all rolling bearings with high quality lubricant for continuous lubrication, to maintain its design performance. Rolling bearings on body and seat is formed on a layer of oil film to prevent direct contact between metal and metal. If the lubrication is good, can reduce friction, make it from wear and tear. If you are interested in the above HRB bearing the author introduces the information or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source