1. First, disconnect the connecting cable between the slip ring motor and the power supply device, and insulate the power supply device of the Sima motor to avoid electric shock.
2. Secondly, loosen the pulley, anchor bolts, ground screws and motor coupling, and remove the clutch, pulley fan cover and micro fan.
3. Then, remove the front bearing outer cover, front end cover, rear bearing outer cover and rear end cover, and pull out the main components of the rotor.
4. Finally, remove the front bearing inner cover and rear bearing inner cover to complete the disassembly of the high-voltage motor rotor slip ring.
How to measure the torque of the motor?
The position switch is damaged, the slip ring is worn, and the working speed is low.
The door's rotating shaft is broken mainly because the position switch is damaged, the slip ring is worn, and the working speed is low. First, check whether the position switch is damaged or has a short circuit, and whether the encoder coupling is If it is loose, secondly check the slip ring to see if there is any serious obstruction. Secondly, when the slow-travel beam fails, the system will continue to run at a low speed and needs to be repaired in time before it can resume operation.
The shaft current extraction method of large-scale units
Measure the torque and number of revolutions of the motor. For no-load revolutions, just use a revolution meter, either mechanical or photoelectric.
To measure torque, just install a torque sensor on the motor load shaft. Generally, a torque speed sensor is used.
The simplest one is to use a pressure sensor, and you can also calculate the torque after collecting the signal. Because the torque speed sensor is too expensive, pressure sensors have been used for collection.
There are many methods of axial current extraction for large-scale units, depending on the design and application requirements of the unit. Here are some common shaft current extraction methods:
1. Cylinder extraction method: This is the most common method. The shaft current is extracted by installing a signal ring on the motor shaft. The signal ring is connected to the magnetic circuit of the stator winding and transmits the shaft current signal from the rotor to the stator. This method is suitable for most ordinary motors.
2. High-load lead-out method: For large units or units with high load, high-load lead-out method is usually used. In this method, a slip ring coupling is installed on the motor shaft, and the shaft current is drawn through the slip ring. This design ensures that the shaft will not break or be damaged when subjected to high loads.
3. Hollow shaft lead-out method: For some applications, such as units that require fluid or other substances to pass through the shaft, the hollow shaft lead-out method can be used. By arranging a hollow lead-out shaft on the motor shaft, the shaft current can be led out through the hollow part of the shaft.
It should be noted that the above are just some common shaft current extraction methods, and different units may adopt different designs and methods. The specific design and selection should be determined based on the specific requirements and application scenarios of the unit. If you have specific unit or application needs, further consultation and discussion with the unit manufacturer or professional engineer is recommended.