The conveyor is a conveying machine for conveying materials on a certain line. The conveyor can carry out horizontal, inclined and vertical transportation, and can also form a spatial transportation line. It can be transported by a single set, or composed of multiple sets, or combined with other conveying equipment to form a horizontal or inclined conveying system to meet the operation needs of different layout forms. It can carry materials continuously, with large conveying capacity, light operation and simple structure.