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ac motors

ac motor speed reducer Installation of the shaft-mounted ac motor and precautions and installation of the ac motor. The following describes the installation of the shaft-mounted ac motor; the precautions for the installation and use of the ac motor; the use, maintenance and precautions of the gear ac motor. Take a look at the details below.
First, the installation of shaft mounted ac motor
(1) Installation relationship between ac motor and working machine
In order to avoid deflection of the working machine spindle and additional force on the ac motor bearing, the distance between the ac motor and the working machine should be as small as possible without affecting normal operation, and its value is 5-10mm.
(2) The connection between the ac motor and the working machine
The ac motor is directly set on the working machine spindle. When the ac motor is running, the counter torque acting on the reduction gear body is mounted on the counter-torque bracket of the reduction gear body or balanced by other methods. The machine is directly matched and the other end is coupled to the fixed bracket.
(3) reducer motor Installation of the anti-torque bracket
The counter-torque bracket should be mounted on the side of the working machine facing the ac motor to reduce the bending moment attached to the working machine shaft. The bushing of the anti-torque bracket and the fixed bearing coupling end uses an elastic body such as rubber to prevent deflection and absorb the generated torque ripple.

Electric motor

Second, the use of gear ac motor, maintenance and precautions
(1) When disassembling and installing the ac motor, hammering should be avoided as much as possible to avoid damage to normal parts.
(2) If there is any oil leakage at the shaft extension or joint during use, the seals such as the skeleton oil seal should be replaced in time.
(3) The ac motor adopts 460# medium load industrial gear oil, and the working environment temperature is 0~40°C.
(4) After the first use for 100 hours, the inner cavity should be cleaned and replaced with new gear oil, and the oil should be changed every 2000 hours.

Third, the ac motor installation and use precautions
(1) The ac motor should be firmly installed on a stable level foundation or base. The oil in the oil drain should be removed and the cooling air circulation should be smooth. The foundation is unreliable, causing vibration and noise during operation and causing damage to bearings and gears. When the transmission coupling has protrusions or gears and sprocket transmissions, it should be considered to install a protective device. When the output shaft is subjected to a large radial load, the reinforcement type should be selected.
(2) According to the specified installation device, the staff can conveniently approach the oil mark, the vent plug and the drain plug. After the installation is in place, the accuracy of the installation position should be thoroughly checked in order, and the reliability of each fastener should be flexibly rotated after installation. The ac motor is splashed and lubricated in the oil pool. Before running, the user needs to remove the screw plug of the vent hole and replace it with the vent plug. According to different installation positions, and open the oil level plug screw to check the height of the oil level line, refuel from the oil level plug until the oil overflows from the oil level plug screw hole, and then screw the oil level plug to make sure it is correct before emptying The test run shall be no less than 2 hours. The operation should be stable, without impact, vibration, noise and oil leakage. If abnormalities are found, they should be eliminated in time.
(3) When installing the ac motor, the center of the drive shaft should be centered, and the error should not be greater than the compensation amount of the coupling used. Good alignment can extend the service life and achieve the desired transmission efficiency.
(4) When installing the transmission member on the output shaft, it is not allowed to strike with a hammer. Usually, the internal jig of the assembly jig and the shaft end is used, and the transmission member is pressed by the bolt, otherwise the internal parts of the ac motor may be damaged. It is best not to use a steel fixed coupling. Due to improper installation of this type of coupling, it will cause unnecessary external load, resulting in early damage of the bearing and even breakage of the output shaft in severe cases.

 ac motor

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