A Multiphase Iron Core Feedback Compensated Pulse Motor

Abstract

The invention discloses a multi-phase iron core feedback compensation pulse motor, which includes a main shaft, a casing, a front end cover, a rear end cover, a control box and at least two excitation pairs, each of which includes a stator and a rotor, and the The two ends of the casing are fixedly connected to the front end cover and the rear end cover to form a closed casing. The main shaft is mounted on the casing or end cover through bearing double-end support, the stator is installed on the inner wall of the casing, and the rotor is installed on the main shaft. Above, the axial position of the rotor coincides with the stator, and the radial position is adjacent. The control box is installed on the outer wall of the casing, and the control box is connected to an external power supply and delivers current to each stator respectively. The motor also includes a speed sensor, which detects the rotational speed of the main shaft and converts it into an electrical signal and transmits it to the control box. The control box receives the change of the main shaft rotational speed and controls the phase of the current input to each excitation pair.

Description

technical field [0001] The invention relates to the field of motors, in particular to a multi-phase iron core feedback compensation pulse motor. Background technique [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 the alternating current is input into the stator and rotor to generate a rotating torque to balance the load torque for rotation. The 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 cannot be used in some occasions with high requirements on the speed. Contents of the invention [0003] The purpose of the present invention is t...

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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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