The transmission system of the scraper conveyor at the top of the silo is often equipped with protective devices such as friction torque limiters or hydraulic couplings to solve the problem of frequent impact loads on the transmission system during the operation of the scraper conveyor. The commonly used driving motor forms for the old scraper conveyor were single speed motor drive or double speed motor drive.

The new design of the permanent magnet variable frequency intelligent drive system for the scraper conveyor at the top of the silo combines variable frequency technology with permanent magnet variable frequency motors. It combines the characteristics of low speed and high torque of permanent magnet variable frequency motors with the advantages of variable frequency technology, simplifies the driving device, and adopts various methods such as direct drive, semi direct drive, and traditional drive to connect to the transmission system. Its application in scraper conveyor equipment can effectively solve problems such as heavy load starting

After years of use of scraper conveyors, it has been shown that they are not suitable for using standard chains. The marked chains have a lower service life, usually 2 to 2 5 years. Therefore, carbon steel is commonly used as the material for scraper chains in scraper conveyors. Carbon steel scraper chains have better strength and wear resistance than iron scraper chains.