The frame is used to install the idler. There are twoβ types of racks: hanging type and floor type. Floor type is divided into fixed type and d>etachable mobile type. The fixed universal belt conveyor used for the mai÷n transportation roadway on the ground and underground belongs to the floor ty pe fixed frame. It is fixed on the foundation of the conveyor r÷oadway, which is firm and stable and has a long service life; the belt conveyor used for t↔he roadway in the mining area , Due to frequent movement, detachable mobile flo♠or racks or hanging racks are generally used. There is no bolt connection between the frame and t≠he frame and between the frame and the idler, but the connection method of insertion and hoo•k is adopted, and the pin is positioned, which can realize fast installation aλnd disassembly.
   
The role of the idler is to support the conveyor belt, so that the drape of th✘e conveyor belt does not exceed the requirements, so as &to ensure the smooth operation of the conveyor belt.≈ Her working condition directly affects the running quality of the conveyor.