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Structure of mining electric locomotive/ What are the components of the mining electric locomotive?

Views: 0     Author: Site Editor     Publish Time: 2022-09-27      Origin: Site

Mining electric locomotive is mainly composed of mechanical and electrical parts.


The frame is the frame of the locomotive, welded from thick steel plates. Support the mechanical and electrical devices on the locomotive; The axle box is mainly used to fix and seal the protective bearing, and use the guide grooves on both sides of the bearing box to connect the wheel set to the frame, so that the wheel set can move freely up and down relative to the frame in a certain range during the locomotive running. The wheel set is generally formed by pressing two wheels onto one axle, which is used to make the torque of traction motor act on the track to generate the traction force and braking force of the locomotive, so that the locomotive can roll smoothly on the track through the wheels; According to different braking modes, braking devices can be divided into mechanical braking and electrical braking. Mechanical braking device uses mechanical brake for braking. Energy consumption braking by traction motor during electrical braking; The sanding device is mainly used to improve the friction coefficient between the wheel and the track, and increase the friction between them.


Traction motor is one of the main equipment of electric locomotive. At present, mining electric locomotive adopts DC series excitation motor for traction; The controller is an important equipment for controlling the operation of traction motor and electric locomotive. It is composed of two parts: the main controller and the commutator, which are also called the main shaft and the reversing shaft respectively; The automatic switch is the power switch of the motor owner's circuit, and is actually the protection device of the motor power circuit. The front and rear of the mining motor car are equipped with lighting lamps, which are usually powered by the contact network; The starting resistance is generally composed of several independent resistors, which are connected in different ways to obtain different resistance values, which is used to limit the starting current; Pantograph is the electrical equipment installed on the top of the locomotive to receive power from the overhead power grid. Pantographs can be divided into pantograph type and contact type according to their own structure, and the former is widely used in mining electric locomotives.

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