Motor bearing smooth and elegant

Many motor fault is the basic reason of smooth bearing system problems. Smooth bearing system is the main factor affecting the bearing life, plays an vital role in motor function. Smooth principle of motor bearing is smooth and fat under the action of shear force, will own three dimensional fiber network structure pulled precipitation smooth oil, rotating element in bearing, bearing, and form a layer of smooth oil film bearing race, which have smooth effect. Bearing smooth working principle of the equipment in the process of practical operation, when new beginning smooth fat bearing rotation, smooth fat first was thrown from the rotating element, and quickly in the bearing cover cavity circulation, cooling; Then, smooth and fat from the rotation of the bearing race lateral cuts to the rotating element. Cling to smooth the appearance of a rotating element local fat in shear under the action of tensile fibre network structure, make smooth oil of a small amount of precipitation in the rotating element and form a layer of light synovial seat appearance; Smooth fat still adhere to the good of other local fiber network structure, cooling and sealing role. From smooth grease in the bearing principle of work, smooth fat within the motor bearing is not relying on smooth fat stick on the metal surface smooth effect, but as the liquid inside the cavity of bearing cover from time to time cycle activities, namely from time to time out of rotating element to the bearing cover inside the cavity, and from time to time from bearing cap cavity returns to the rotating element, thus repeated shear and cooling. This process not only can form stable within the bearing oil film, also can guarantee the balance of internal temperature of the bearing. Common problems and processing measures, 1) Fat liquefaction thrown, bearing no smooth dry grinding, bearing apart and lock in a short period of time attack, eventually cause electrical overload, winding burned JiSao chamber. Big local is the source of the problem due to high temperature in the motor itself or cause smooth fat qualitative change of bearing high temperature, should choose and motor performance and suitable high temperature grease smooth operating condition. （ 2) Smooth fat solidification motor rotation difficult. The conditions for smooth fat quality not beautiful or more smooth working temperature and practice of fat is not suitable for the condition of temperature caused by, in low temperature environment should choose the suitable for low temperature operation smooth and fat. When the motor starting, if due to poor smooth incur motor slow long time operation, is only the starting process is due to the motor current is too large to burn out. （ 3) Smooth fat its own quality problems. If smooth the working temperature of fat does not agree with the request, or root volatile oil, when the electric is running by smooth fat not smooth. In order to prevent the onset of similar problems, the motor manufacturer should be especially careful when choosing a smooth fat, avoid the fat does not fit cause quality problems. On an electric motor, smooth lipid material capital proportion is very small, not too due to save money on lipid to small loss. （ 4) Grease in the process of motor cannot constitute a good circulation. The problem in practice is an issue many motor manufacturers don't realize, bearing inner lid, the design of the bearing cover itself structure, rotor alignment level, bearing and shaft, bearing and the bearing chamber cooperate relationship between different level affects the final cycle effect. Many consumption of motor manufacturers adjusted within the bearing cover cavity depth, increase the bearing oil baffle plate, guarantee the rotor alignment level to reduce the motor rotor running in the process of dynamic operation, adjust radial fit tolerance of bearings and related parts and see the obvious effect. Proved that the design of motor bearing grease is a good circulation system is one of the important wrist processing quality of bearing fault, but often motor manufacturers are not necessarily understanding and cognition to the problem, especially the design personnel, ensure smooth oil and recycled from theory, to be better on the design of the bearing cover, including the bearing cover of width, depth and shape of inner chamber size, could make the problem get better treatment.