Sprocket and chain are mainly used in scraper conveyor, washing and sorting equipment, DY-100 shearer and rock loader. The processing of chain wheels shall conform to the national GB1244-76 standard. Due to the strict requirements in use, the quality of chain wheels produced by Dongguan mesh belt is very good in use. The structure of the chain wheel is integrated and left and right halves. Sprocket materials shall ensure sufficient strength and wear resistance. Hardness HRC > 40-45; Heavy load shall be treated by surface sudden fire.
The failure mode of chain wheel and chain is mainly that the pitch of chain becomes longer due to wear, thus causing the machine to generate additional dynamic load, continuous impact of chain and chain wheel, vibration and noise, and accelerating the damage of accessories. Therefore, the transmission installation equipment shall be in accordance with the reasonable proportion of manufacturers. Purchase qualified accessories to ensure the quality of accessories. Timely replace qualified chain wheel to reduce chain wear. Replace the bearing supporting the sprocket in time to prevent the center of the sprocket from skewing due to excessive clearance.
The greater the transportation capacity and the longer the laying length, the greater the torque of the sprocket. Therefore, it is required that the processing of chain wheel should be standardized to ensure toughness, pulsating load and additional impact, with a considerable service life.