Size detection equipment for AC motor spindle and detection method of size detection equipment

Abstract

The invention relates to the technical field of AC motors, and discloses size detection equipment for an AC motor spindle and a detection method of the size detection equipment, which comprise a device box, a detector, a control knob, a display screen, a connecting wire, detection flow pens, a connecting shaft and a device upper cover. The detector, the control knob and the display screen are located in the device box, and the detector and the display screen are located above the control knob. According to the invention, a motor current is obtained, and a motor negative sequence current valueis obtained based on the motor current; the precision size of the motor is determined according to the size relation, detected through the two detection flow pens, between the negative sequence current value and a preset threshold value; a graduated scale arranged on the front surface of the detector is used for determining the size relation between the motor negative sequence current value and the preset threshold value; when the number of times that the motor negative sequence current value is greater than the preset threshold value exceeds an upper limit threshold value, the effect of determining the threshold current detection size and the working state of the motor can be achieved.

Description

Technical field [0001] The invention relates to the technical field of AC motors, in particular to a size detection device and a detection method for an AC motor electric spindle. Background technique [0002] The motor refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. The motor is represented by the letter M in the circuit. Its main function is to generate driving torque, which is used as the power source of electrical appliances or various machinery to generate electricity. The machine is represented by the letter G in the circuit, and its main function is to convert mechanical energy into electrical energy. [0003] Existing motor spindle detection devices, most of the detection devices can only perform a single size detection on the motor spindle, not only cannot determine the working state of the motor spindle, but also cannot detect the accurate volume value of the internal co...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a size detection device and a detection method for an electric spindle of an AC motor, which has the advantages of detecting the size and working state of the threshold current, and solves the problem of poor calculation of the precise size of the motor spindle and complicated mathematical operations. The problem that the size checkout takes a long time

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