How high-speed motors should be disassembled for maintenance
Many friends in the use of high-speed motor will encounter problems, it is necessary to disassemble the high-speed motor for repair, then how should high-speed motor disassembly and repair? Today we will introduce the method for you.
Many friends in the use of high-speed motor will encounter problems, it is necessary to disassemble the high-speed motor for repair, then how should high-speed motor disassembly and repair? Today we will introduce you to the method.
Because in the disassembly of the end cover and armature. Vibration will damage the carbon brushes, so the high-speed motor carbon brushes should first be removed from the carbon brush bad. And solid for the two carbon audit and the angle of the host may not be the same, in order to ensure that the high-speed motor in the installation can be restored to the original, the left and right carbon brush will not be installed in reverse, must be removed before the carbon brush. To ensure that the left and right carbon brushes are not reversed during installation, it is important to mark the carbon brushes before removing them. Also remember not to touch the contact surface of the carbon and commutator.
At one end of a high speed motor there is usually a cooling dysentery, at the other end there may be a rotational speed measuring magnet or speed measuring ring. Secondly, a mark should be placed on the fan sleeve or between the magnet sleeve and the shaft so that the original mark can be installed after the repair is completed.
Because the dynamic balance test of the high-speed motor is with the fan blade or speed ring (speed magnet) for the assembly, so the assembly must be assembled according to the mark when disassembled This point in the general repair of the motor is insignificant trivial, I side in the repair of high-speed motor can be a matter of great importance. This is because if the speed ring or fan blade is damaged. or section has been assembled according to the mark, even if the rest of the motor is in good repair. After assembly, it may cause unbalanced vibrations in the machine during high speed operation.
When disassembling the high-speed motor, do not use hammers, punches and other hard knocking and prying to use the pulling horse, use the pulling horse to pay attention to: pull the top of the top to be directly on the top eye, to the top of the pulling horse and the top eye with a protective pad, the purpose is to protect the top eye on the armature shaft to avoid damage.