The working principle of a side dump mine car:
When the track traction locomotive or winch is used for traction, it can only unload to the set side on the curved rail unloading platform prepared at the unloading place. On one side of the carriage, it is connected to the frame with a shaft, and on the other side, the door is equipped with unloading rollers. When unloading, when the roller wheel transitions along the slope of the curved track and moves up the slope section of the unloading curved track, the carriage tilts, and the movable side door rotates around the pin shaft and is pulled open to begin unloading. When the roller moves downhill along the inclined unloading curve, the carriage automatically descends and resets to the closed side door due to its self generated weight. It should be noted that when the side curved rail side dump mine car is lifted from the shaft bottom to the unloading platform, the lifting winch should slow down to the slope unloading platform to make it unload smoothly. The advantages of the single-sided curved track side dump mine car produced by middling coal Group are that it has a larger volume than the tipper tramcar and the fixed tramcar, and it can unload automatically and smoothly. Due to the characteristics of this unloading method, the curved track unloading space is small, generally only 5.2 meters long, and the unloading angle can still reach 55 degrees, which effectively saves the development space of the shaft and reduces the size of the chamber. The unloading distance is short, and the excavation volume of coal bunkers and yards is only one-third of that of other mining trucks; Due to the symmetrical unloading curve, it is possible to achieve bidirectional unloading of side dump mine car.
