Why choose a mine electric locomotives?

The mine electric locomotives drives the wheels to rotate through the transmission device, thereby traction the train, and the current flowing from the motor flows back to the substation via the track. Many people have questions about why to choose a mine electric locomotives. In response to the above questions, we asked a professional Staff, wrote the following news, interested friends can follow me along.

The mine electric locomotives has a simple structure, low cost, convenient maintenance, large locomotive transportation capacity, high speed, high electricity efficiency, low transportation cost, and is widely used. Disadvantages: There must be rectification and wiring facilities, which is not flexible enough; the wiring has a certain impact on the size of the roadway and the safety of pedestrians; sparks are easily generated between the pantograph and the wiring, and it is not allowed to be used in mines with severe gas; The investment is relatively large at the time, but in the long run, the total cost of using a line mine electric locomotives is much lower than that of a battery electric locomotive. Therefore, if the conditions of the mine permit, the main transportation of the mine should use overhead mine electric locomotives.

The positive pole of the DC power supply is connected to the overhead line conductor through the power supply cable. The contact during this period becomes the power supply point. The negative pole is connected to the track through the return cable. The corresponding contact is called the return point. During work, the upper part of mine electric locomotives running along the track is powered by the pantograph to contact the overhead line, and the lower part uses the wheels to contact the track to form a loop to make the traction motor work, so that the electric locomotive will pull the mine car. It can be seen that the running track of the wire-type mine electric locomotives is also the conductor of the current loop.

In order to reduce the voltage drop in the traction grid, wires or copper strips are usually used at the joints of the rails to reduce the resistance at the joints. The working process of the wire-type mine electric locomotives is reduced and rectified by the traction converter. The positive pole is connected to the overhead line and the negative pole is connected to the rails. The pantograph on the locomotive comes into contact with the overhead line, draws current into the car, and then enters the traction motor through the air automatic switch, controller, and resistance box to drive the motor.

In addition, in order to ensure safety, in the transportation of mine electric locomotives, in addition to safety measures to ensure the safety of locomotives and personnel, it is also important to enhance pedestrian self-protection and mutual protection safety awareness.