Collection spare! Summarize the problems that can not be neglected in the machining of special motor rotor for hydraulic oil pump

It's easy to make a motor, but it's not easy to make a good motor, and not to mention the unpredictable winding that is black box. There are many little-known secrets in the process of manufacturing the motor rotor. Today's Dalan Motor's Small Arranging and Management Principles Some problems that are easily or easily overlooked in the machining of special rotors for hydraulic oil pumps are mostly seemingly simple but always solved.

The manufacture of the rotor of the electric motor includes the processing of parts such as shafts and rotor punchings. It mainly involves two specialized types of machining and punching. The weight ratio of the components affecting the quality level is more than that of equipment.

Rotor lamination process:

The rotor includes cast aluminum rotors and wound rotors.

For the cast aluminum rotor, the control of the false shaft and false keys is very important. If the diameter of the false shaft is too small, it will lead to the circumferential displacement of the punch during lamination. The final result is the cast aluminum rotor saw teeth; on the contrary, if the diameter of the false shaft Larger, it will lead to deformation of the chip caused by the rotor chip rotor or rotor bottom; For the cast aluminum rotor false keys, the size does not meet the same will lead to sawtooth or rotor slot slope does not meet the requirements.

For the wound rotor, the diameter of the corresponding axial core position is similar to that of the aluminum aluminum rotor during the overlap process. This will result in a lack of light in the groove, leaving a potential risk to the ground, and at the same time, the tank fullness rate will be affected. Different degrees of influence.

Rotor cast aluminum process:

Cast aluminum rotor slivers or broken bars are a common problem in cast aluminum rotors. The cast aluminum process is considered as a special control process in all motor manufacturers. Whether it is low-pressure cast aluminum, high-pressure cast aluminum, or centrifugal cast aluminum, cast The aluminum process and the results of the cast aluminum are not the specific characteristics of the whole process, and the selection of process parameters is very important.

Winding rotor processing:

Compared with the cast aluminum rotor, the wound rotor has windings, and accordingly there is a reliability problem of lashing and solidification of the rotor. In individual operating conditions, rotor overspeed is unavoidable, soft-rotor rotors often have dumping problems, and hard-windings have better improvement.

Rotor turning:

Speaking of rotor turning or rotor, you have to talk about the center hole control. The center hole serves as a reference for positioning. It should be said that it is too important. Shaft machining and subsequent rotor machining cannot be separated from the center hole.

Turning feed:

For rotor turning, it involves a contradiction between process and ergonomics. In addition, if the feedrate is too large, the surface of the rotor will be rough and the winding rotor will cause ground fault due to the circumferential displacement of the punching plate.

----- Editor: Dalan Oil Pump Motor 02 - Procurement Consultant

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