Scraper conveyor is the first link of coal transportation. The quality of its operation determines whether coal safety production can be carried out smoothly. During the operation of the squeegee conveyor, the chain breaking of the squeegee chain occurs from time to time. What causes the chain breaking of the squeegee chain? Today Luoyang Vision will answer this question for you.

Scraper chains are not paired

The scraper chain is composed of a ring chain, a scraper, a bolt, a pressure plate and a lock nut. Scraper chains are usually used in pairs, so they must be paired. If there is no pairing, the length of the scraper chain is different, and the stress of the scraper chain is concentrated on one of the ring chains for a long time. Chain break accidents are prone to occur when the conveyor is running

Link chain model is incorrect

The strength level of the round chain must match the power of the scraper conveyor, the chain speed, and the high zui tension of the chain when starting at full load. If the ring chain is not selected properly and the strength level is insufficient, the chain will be broken during operation. Especially when starting at full load or when iron is dropped on the scraper conveyor, it will cause frequent breaks.

The chute chain does not match the size of the scraper

The size design of the lower chain of the chute of the scraper conveyor is also very critical and needs to match the size of the scraper. For example, the length of the scraper needs to match the width of the chute, and the height of the scraper must match the height of the lower chain of the chute. If the clearance between the scraper and the lower chain is very small, when the scraper conveyor is bent, the scraper will trip in the lower chain of the chute, plus the influence of coal return, it will often trip the chain, and then in the lower chain. Strangling the scraper chain caused a chain break accident.

Excessive misalignment at the chute interface

Due to the manufacturing error of the manufacturer, the pushing time is too large, the amount of misalignment at the chute interface caused by the bending and deformation of the interface board at the two ends of the chute, etc., will cause the scraper to trip during the operation, resulting in a chain breaking accident. .

Scraper "out of slot"

During the operation of the scraper, the friction with the chute is continuous. Friction will eventually cause the wear of the scraper to become shorter and the wings to wear. When the scraper is worn for a long time and its length is less than the slot of the chute, it is very easy to appear "phenomenon. If the "slot out" scraper is not found in time, the scraper will run to the head sprocket, and it will catch with the head frame and cause a chain break.

Aiming at the above-mentioned reasons that may cause the scraper chain to break, find out the corresponding measures, which can reduce the failure rate of the scraper conveyor, reduce the number of abnormal shutdowns, and ensure the normal operation of safety production in the underground. Luoyang Yuanjian Mining Equipment Co., Ltd. looks forward to cooperating with you!