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Automatic positioning device for neutral line of direct current motor

A DC motor and automatic positioning technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of long adjustment time and inaccurate determination of the neutral line, achieve a high degree of automation, reduce debugging personnel, and increase sampling speed fast effect

Inactive Publication Date: 2016-02-24
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way of determining the neutral line is not accurate, and the adjustment time is long

Method used

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  • Automatic positioning device for neutral line of direct current motor
  • Automatic positioning device for neutral line of direct current motor

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Embodiment Construction

[0009] Such as figure 1 An automatic positioning device for the neutral line of a DC motor, including a multi-channel voltage acquisition device, a programmable control DC power supply, and a remote computer. The installation and application diagram of the device is as follows figure 2 As shown, among them: 1 is a multi-channel voltage acquisition device; 2 is a DC motor commutator; 3 is a DC motor carbon brush; 4 is a USB transmission line; 5 is a remote computer; 6 is a programmable control DC power supply; 7 is a DC motor outlet box; 8 is the motor excitation lead terminal; 9 is the RS232 lead.

[0010] Such as figure 2 Connect the input terminal of the NIUSB-6343 multi-channel voltage acquisition device 1 to the DC motor carbon brush 3 on the DC motor commutator 2, and connect the output signal of the NIUSB-6343 multi-channel voltage acquisition device 1 to the The remote computer 5, the Gwinstke6003 programmable control DC power supply 6 is connected with the motor ex...

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Abstract

The invention provides an automatic positioning device for a neutral line of a direct current motor. A remote computer controls a programmable direct current power supply to provide direct current voltage for an excitation winding of the direct current motor in an interrupted manner, and the remote computer acquires induced voltage in an armature winding of the direct current motor from each carbon brush via a multichannel voltage acquisition device, displays and compares uploaded voltage data, and calculates the position of the neutral line of the direct current motor. According to the automatic positioning device, the structure is simple, the automation degree is high, the wiring is convenient, automatic, accurate, and rapid positioning of the neutral line of the direct current motor is realized, the adjusting time of the neutral line of the direct current motor is shortened, and on-site debugging personnel is reduced; besides, the computer analyzes and calculates the voltage data of each carbon brush via software so that manual errors are avoided, and guarantee is provided for safety operation of the direct current motor.

Description

Technical field: [0001] The invention relates to an automatic positioning device for the neutral line of a DC motor. Background technique: [0002] When a DC motor equipped with a commutator is commutating, the carbon brushes must short-circuit at least two or more commutator segments, so that the rotor armature windings connected by these commutator segments are short-circuited. It can be known from the principle of the DC motor that in an ideal state, when the carbon brush is on the neutral line of the DC motor, that is, the neutral position of the magnetic pole, no electromotive force will be induced in the armature winding. At this time, there will be no electromotive force in the short-circuited winding. There will be a current, and there will be no spark. If the carbon brush deviates from the neutral line of the magnetic pole, the magnetic field of the rotor armature is no longer perpendicular to the magnetic field of the magnetic pole, but deviates from an angle, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/21H02K11/26
Inventor 高尚毕纯辉孙凯胡丽杰梁彬王洪泉韩波李淑钰
Owner HARBIN ELECTRIC MASCH CO LTD
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