Multi-phase iron core feedback compensation pulse motor

Abstract

The invention discloses a multi-phase iron core feedback compensation pulse motor. The motor comprises a main shaft, a machine shell, a front end cover, a rear end cover, a control box and at least two excitation pairs. Each excitation pair comprises a stator and a rotor; and two ends of the machine shell are fixedly connected with the front end cover and the rear end cover to form a closed shell.The main shaft is installed on the machine shell or the end cover through bearing double-end supporting, the stators are installed on an inner wall of the machine shell, the rotors are installed onthe main shaft, the rotors coincide with the stators in axial position and are adjacent to the stators in radial position, the control box is installed on the outer wall of the machine shell, and thecontrol box is connected with an external power supply and delivers currents to the stators respectively. The motor further comprises a speed sensor, the speed sensor detects a rotating speed of the main shaft, converts the rotating speed into an electric signal and transmits the electric signal to the control box, and the control box receives a rotating speed change of the main shaft and controlsa phase of a current input to each excitation pair.

Description

Technical field [0001] The invention relates to the field of motors, in particular to a multiphase iron core feedback compensation pulse motor. Background technique [0002] The motor is a machine that provides the rotation speed for other machines. In the prior art, the three-phase motor is widely used. The structure of the three-phase motor is disassembled. The alternating current is input into the stator and rotor to generate a rotating torque to balance the load torque and rotate. For sinusoidal fluctuating currents, the torque produced on the stator and rotor is proportional to the absolute value of the current. Therefore, the input torque on the stator and rotor also fluctuates. The average torque is equal to the load torque. When the input torque fluctuates, it will cause The fluctuation of the spindle speed cannot meet the requirements in some occasions that require high speed. Summary of the invention [0003] The purpose of the present invention is to provide a multi-ph...

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Problems solved by technology

[0002] A motor is a machine that provides rotational speed for other machines. In the prior art, three-phase motors are widely used. Dismantling its structure means that alternating current is input into the stator and rotor to generate rotational torque to balance the load torque for rotation. Alternating current is a For a sinusoidal fluctuating current, the torque generated on the stator and rotor is proportional to the absolute value of the current. Therefore, the input torque on the stator and rotor also fluctuates, and its average torque is equal to the load torque. When the input torque fluctuates, it will cause The fluctuation of the spindle speed, in some occasions with high requirements on the speed, cannot meet the requirements of the application.

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