We should pay attention to not only in the use of mechanical roller, but also pay more attention to the use of roller bearings, belt conveyor roller bearing plays an important role in the operation of roller, roller and roller can run directly with the roller bearing are closely related. So how do we determine if the roller bearing can be reused after removal.
In order to judge whether or not the roller bearing can be used again, it is necessary to check the accuracy of the dimension, the rotation accuracy, the internal clearance of the screw conveyor, the mating surface, the raceway surface, the retainer and the sealing ring. The correct use of disassembly tools is the key to avoid roller bearing damage.
If the roller bearing parts are found to be broken and the defects and raceway surface rolling surfaces are removed, the roller bearing must be replaced. Belt conveyor roller accessories must be to do regular maintenance, do early detection of failure, to prevent accidents, bucket type lifting machine in addition to reducing costs, belt conveyor is also very important to improve the productivity and economy.
The assembly precision directly affects the bearing and roller bearing at both ends of the quality, the following 2 dimensions of the bearing seat is extremely important, effect of H value of axial positioning precision bearings in the assembly, the D value is directly related to the bearing seat and the bearing with high precision.
Spiral roller is in oblique or flat roller outer surface with a spiral groove cast rubber sleeve, it not only plays a role but also carrying idler, regulating heart function deviation. The design of the spiral roller is one of the effective measures to prevent the deviation:
In the roller group, the two side rollers are tapered roller, but the thread is different, one side of the roller is left, the other side of the roller is right, so that the conveyor belt is the only point of the lateral line. When the conveyor belt is running, the axial force is generated due to the action of the screw. The deviation when the conveyor belt to the side slide by spiral angle due to thrust belt center, more to the outside more, at this time, the two roller conveyor belt from pushing force to the center, the difference of two force will lead to the reduction of conveyor belt. When the spiral roller is installed on the conveyer belt, the screw of the middle supporting roller should be bidirectional, namely, one end is a left spiral, and the other is a right spiral. One side of each side of the idler is left-handed and the other side is right-handed thread. The main way to install the screw roller is that it can face the conveyor tail, the right hand side of the installation of right-hand screw roller, the left hand side of the installation of the left hand screw roller. |
