JS500 concrete mixer

　　The brake motor drives the drum to rotate through the reducer, and the wire rope pulls the hopper through the pulley to climb up the loading rack track. When it climbs to a certain height, a pair of rollers on the hopper door at the bottom of the hopper enter the horizontal fork of the loading rack, the hopper door automatically opens, and the material is put into the mixing tank through the feeding funnel. In order to ensure the accurate positioning of the hopper, a limit switch is installed on the loading rack. The upper limit position has two limit switches, which respectively play a limit and safety protection role on the hopper rise. The lower limit has only one limit switch, when the hopper drops to the bottom of the pit, the wire rope is slightly loose, the spring lever mechanism makes the lower limit action, the hoisting mechanism automatically stops, the lower limit and the spring lever mechanism are installed on the top of the upper guide rail. The feeding rack part is collapsible. It is bolted and folded during transportation in order to reduce the transportation height.