Sprocket shaft is an important part of the transmission system, mainly used to connect the sprocket wheel and drive it to rotate, so as to transmit power and motion.

Coal mine header transition groove, also known as transition section, connecting groove or scraper transition groove, is the connecting groove between the header or tail section and the central groove. Its main function is to connect the headstock and the lifting change groove, adjust the height difference between the headstock and the lifting groove, so that the scraper chain can smoothly transition from the central groove to the head sprocket, thus ensuring the normal operation of the scraper conveyor. In addition, the transition groove also plays the role of supporting pushing and pulling frame, which is an important supporting part of the scraper conveyor.

Conveyor adjusting trough, as an important part of the scraper conveyor, is mainly used to adjust the length of the scraper conveyor to adapt to the changing needs of the length of the working face.

Coal mine machine tail transition groove, as a part of the scraper conveyor, mainly connects the machine tail frame with the central groove or elevated groove, playing the role of transition and connection.