DF8B field weakening resistor adjustment and detection tool

Abstract

A DF8B magnetic field weakening resistance adjustment and detection tool provided by the present invention includes an electrical cabinet main body, a gap measurement tool and a bakelite block group. The electrical cabinet main body is equipped with an electrical cabinet cabinet body bottom plate, a tape-wound resistor mounting bracket and a tape-wound resistor. One end of the winding resistance mounting bracket is fixed inside the bottom plate of the electrical cabinet, the other end of the winding resistance mounting bracket is connected to the winding resistance group, the bakelite block group is provided with pads of different specifications, and the bakelite block group is adjusted with winding The installation distance between the resistance group and the bottom plate of the electrical cabinet, the gap measurement tool measures the distance between the wound resistance group and the bottom plate of the electrical cabinet, and the distance between the wound resistance and the bottom of the electrical cabinet is measured in real time to ensure the accuracy of the wound resistance Work safely and avoid safety accidents.

Description

technical field [0001] The invention relates to a DF8B magnetic field weakening resistor, in particular to a tool for adjusting and detecting a DF8B magnetic field weakening resistor, and belongs to the technical field of locomotive industry. Background technique [0002] The situation of the locomotive is complicated during operation, and it is often necessary to select the appropriate driving speed according to the road conditions. The speed of the locomotive is adjusted by the traction motor, and the locomotive adjusts the speed range of the locomotive by weakening the magnetic field. The function of weakening the resistance is to reduce the resistance and increase the braking current. The maintenance and assembly quality of the weakened magnetic field is an important guarantee for the correct and reliable performance of the electrical circuit. Improper installation of the magnetic field weakening resistor will cause adverse consequences such as redness and heat of the r...

AI Technical Summary

Problems solved by technology

Improper installation of the magnetic field weakening resistor will cause adverse consequences such as redness and heat of the resistor. In severe cases, the magnetic field weakening resistor will be burned, and even cause a major accident in which the entire electrical cabinet is burned, seriously affecting the normal driving safety of the locomotive.

[0003] The installation of the magnetic field weakening resistor in the prior art does not have a tool for adjusting the spacing. During the installation process, the distance between the magnetic field weakening resistor and the bottom plate of the electrical cabinet is not easy to control. At the same time, the distance between the magnetic field weakening resistor and the bottom plate of the electrical cabinet lacks measuring tools. , it is impossible to observe in real time whether the distance between the magnetic field weakening resistor and the bottom plate of the electrical cabinet meets the distance requirement, and the distance between the magnetic field weakening resistors in the prior art cannot be adjusted

[0004] On the whole, the existing technology mainly has the following defects: one is that the installation of the existing magnetic field weakening resistors does not have a tool for adjusting the distance between the magnetic field weakening resistors and the cabinet bottom plate of the electrical cabinet. When the magnetic field weakening resistors are installed, the magnetic field weakening resistors and the electrical cabinet The distance between the cabinet bottom plates cannot be controlled, and it is easy for the magnetic field weakening resistor to accidentally touch the surface of the cabinet bottom plate of the electrical cabinet, causing the magnetic field weakening resistor to burn and damage the main body of the electrical cabinet; the second is that the existing magnetic field weakening resistor and the electrical cabinet There is a lack of measuring tools between the cabinet bottom plates, and it is impossible to know in real time whether the distance between the magnetic field weakening resistor and the cabinet bottom plate of the electrical cabinet meets the safe distance for the magnetic field weakening resistor to work, which may easily cause the magnetic field weakening resistor to work abnormally; The distance cannot be adjusted, and the safe working distance of adjacent magnetic field weakening resistors cannot be guaranteed

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