As an important equipment for collecting and transporting finished materials, the chain conveyor consists of 9 7.5-meter chainways, 3 transmission shafts equipped with sprockets, and a drive motor reducer. The chain passes through the sprocket on the transmission shaft and the head and tail sprockets on the chainway to form a closed loop. With the help of the chain traction, the steel is continuously transported. The drive of the chain is completed by the transmission device. The motor starts and transmits the power to the main shaft equipped with the sprocket through the reducer. The chain moves under the drive of the sprocket to achieve the purpose of conveying steel. Due to the increase in production rhythm, the conveyor is often overloaded or the conveying is blocked, which increases the running resistance and the motor is overloaded. In order to meet the requirement that the finished materials cannot be stained with oil, the transmission bearing cannot be lubricated in time after long-term use, which also causes the motor power to increase, resulting in motor burnout and tooth breaking. At present, the main transmission sprocket of the chain conveyor is an integrated type, which is hot-mounted on the transmission shaft and fixed by a positioning pin. In the movement with large impact, the relative movement of the sprocket and the transmission shaft often occurs, causing wear of the sprocket and the transmission shaft. The 9 chains were inconsistent, affecting transportation. Due to the substantial increase in production pace, the failure rate of the mechanism also increased dramatically. Finally, the sprocket and the drive shaft had to be firmly welded together, making the equipment that could have been replaced disposable. Secondly, the sprocket was constantly worn out during long-term use, and the gears were prone to wear, causing the sprocket and chain to be unstable. If the sprocket needed to be replaced, the drive shaft had to be removed as a whole before it could be replaced, which took a long time and required a lot of labor intensity for the workers.
