Straight wire-drawing machine directly driven by permanent magnet synchronous motor and control method

Abstract

The invention relates to a straight wire-drawing machine directly driven by a permanent magnet synchronous motor and a control method. The straight wire-drawing machine comprises a wire drawing machine and a control system. The wire drawing machine is electrically connected with the control system. The wire drawing machine comprises a motor rotor, a motor stator, an extending rotating shaft, a winding drum base, a winding drum and a motor housing. The motor stator is arranged in the motor housing; the motor rotor is arranged in the motor stator; the extending rotating shaft penetrates throughthe axis of the motor rotor; the winding drum base is arranged on the motor housing; the extending rotating shaft runs through the winding drum base; and the winding drum is arranged on the winding drum base and is fixedly connected with the end part of the extending rotating shaft. Low-speed large-torque high-efficiency effects of the motor are ensured; the heat dissipation efficiency is high; the motor is high in efficiency and wide in speed regulation range; and a neural network and a PID controller are combined, so that parameters of the wire drawing motor change and input signals adapt tothe parameter changes, the influence of field external disturbance on the process is resisted, and accurate control is achieved.

Description

technical field [0001] The invention belongs to the technical field of production and manufacturing, and in particular relates to a straight-forward wire drawing machine directly driven by a permanent magnet synchronous motor and a control method. Background technique [0002] The transmission structure of the traditional wire drawing machine consists of three asynchronous motors, synchronous belts and gearboxes. This kind of transmission structure has low transmission efficiency and poor precision, especially the reduction box. Generally, the efficiency of the reduction box with a reduction ratio of 10:1 is below 90%. [0003] In the wire drawing process, the motor speed is the key control process parameter. In the wire drawing machine control system, due to external interference such as on-site temperature and environment, it is difficult to establish an accurate mathematical model of the wire drawing motor. From the perspective of other uncertain factors, the traditional ...

AI Technical Summary

Problems solved by technology

This kind of transmission structure has low transmission efficiency and poor precision, especially the gearbox. Generally, the efficiency of the gearbox with a reduction ratio of 10:1 is below 90%.

[0003] The motor speed in the wire drawing process is the key control process parameter. In the wire drawing machine control system, due to external interference such as on-site temperature and environment, it is difficult to establish an accurate mathematical model of the wire drawing motor. From the perspective of other uncertain factors, traditional PID control calculations cannot Get the ideal control effect

Images