As the name suggests, the sand spreading device is a device that sprinkles sand on the track of the battery electric locomotive, so why should the battery electric locomotive sprinkle sand on the track?
When we were in middle school, we all learned about friction. We all know that we can walk normally depends on friction, and the same is true for electric locomotives. In order to walk more stably and exert more force on the feet, we will choose shoes with complex sole patterns to enhance friction. The sand spreading device of the battery electric locomotive is also based on this principle. By scattering sand on the track to improve the friction coefficient between the track and the wheels, it ensures that there is enough friction to keep the battery electric locomotive running efficiently, and it can also reduce wheel slippage. Case.
Because the sand spreading device is relatively simple, it generally adopts a purely mechanical structure. The sand box is tilted by pulling the ring or pulling rod, and then the sand enters the pipeline from the sand box, and finally flows to the track. However, how much sand is scattered depends on the experience of the driver, and there is generally no problem. However, relying on the air brake system, our company has developed a device that uses compressed air to precisely control the spraying and flow of sand, making sand spreading more precise.
The above is the content of why the battery electric locomotive needs a sanding device.
