Rotor sheet used for servo motor

Abstract

The invention relates to a rotor sheet used for a servo motor. The rotor sheet comprises rotor sheet bodies and the outer peripheries of the rotor sheet bodies are provided with eight circular grooves with the same size, wherein a regular-hexagonal hole is arranged between the first circular groove and the second circular groove, circular holes are arranged between the adjacent two circular grooves from the second circular groove to the eighth circular groove and then to the first circular groove; and protuberances are arranged on the outer peripheries of the rotor sheet bodies between each two adjacent circular grooves in the eight circular grooves, and the extensions of the protuberances share a common periphery. In the invention, only a stamping die of the rotor sheet needs to be changed without changing the original assembling mode of the motor; and the rotor sheet can be used in the rotor iron core of an eight-pole motor in the servo motor. By using the rotor sheet, the efficiency of the electric motor can be improved; and meanwhile, the electromagnetic noise is small, the starting current is small and the torque is large in the long-term use process.

Description

technical field [0001] The invention relates to a rotor stamping sheet for a servo motor, in particular to a rotor iron core with 8 poles in the servo motor. Background technique [0002] In today's society where global resources are scarce, people's awareness of energy conservation and emission reduction and low-carbon life is increasing day by day. Our country is also vigorously promoting energy conservation and emission reduction, and improving the energy efficiency of electric motors is one of the ways to achieve this goal. one. The motor is an indispensable driving device for the production and operation of industrial and mining enterprises. The total installed capacity of motors in my country has reached more than 500 million kilowatts, and the annual power consumption is 800-1 trillion kwh, accounting for about 60% of the country's total power consumption. , accounting for about 75% of industrial electricity consumption. Among all kinds of motors in use in my country...

AI Technical Summary

Problems solved by technology

Among all kinds of motors in use in my country, more than 80% are small and medium-sized asynchronous motors below 0.55 to 200kw, of which JO2 series motors equivalent to the technical level of the world in the 1950s account for about 20%, which is equivalent to Y in the late 1970s. The proportion of high-efficiency motors of the YX series with the level of the 1980s is even negligible. Among the 250 million kilowatt-capacity motors driving fans, water pumps, and compressors in my country, more than 70% should be adjusted However, so far only about 20% of them operate with speed regulation, and most of them operate at a constant speed, which causes serious waste of electric energy, especially in small and medium-sized enterprises.

[0003] China is becoming one of the world's largest production bases for motors and motor system components, but the energy saving situation of motors in China is not optimistic

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