Belt conveyor throwing distribution unloader

Abstract

The invention provides a material throwing distribution unloader for a belt conveyor. A fall-back roller is arranged on an unloading section of the belt conveyor, so that conveying belts have a fall, and a double-chamber material distribution hopper is arranged at the position of the fall; a push rod drives the double-chamber material distribution hopper to rotate around a rotary shaft for displacement; the double-chamber material distribution hopper comprises a material distribution chamber and a material throwing chamber which are arranged side by side, the material distribution chamber communicates with side discharge boxes on the two sides of the belt conveyor, and the material throwing chamber communicates with the upper conveying belt and the lower conveying belt; switching of the material distribution chamber and the material throwing chamber is achieved through rotation of the material distribution hopper, and strips can be freely switched between unloading and throwing of the belt conveyor; and meanwhile, the double-chamber material distribution hopper does not make contact with the conveying belts, abrasion of the conveying belts is avoided, no material leakage phenomenon is generated in the material distribution and throwing processes, and the defects generated during unloading of an existing conveyor are well overcome. The material throwing distribution unloader is simple in structure, convenient to use and novel in conception; the defects of an unloader for the existing conveyor can be effectively overcome, and the conveying belts are protected; and the service life of the conveyor is guaranteed, and the conveying cost is reduced.

Description

Technical field: [0001] The invention belongs to the technical field of grain conveying machinery and equipment, and in particular relates to a material throwing and distributing unloader for a belt conveyor. Background technique: [0002] The distribution unloader is a mechanical device used to perform multi-point distribution and unloading on the conveyor and control the flow of materials. At present, in the field of grain transportation, most of the unloaders used for belt conveyors are plow unloaders, such as figure 1 , figure 2 As shown, the plow unloader is arranged on the frame of the belt conveyor, and its main unloading mechanism is the unloading plate 201 with a figure-eight cross-section that can move up and down. When unloading is required, the unloading plate 201 moves downward, and the bottom plate of the unloading plate 201 is close to the top surface of the conveyor belt 200. Under the blocking action of the splayed unloading plate 201, the material is unlo...

AI Technical Summary

Problems solved by technology

[0003] (1) The conveyor belt in the belt conveyor is generally a concave structure with a low center and high sides. The splayed discharge plate of the plow unloader cannot completely contact the top surface of the conveyor belt, and the bottom surface of the discharge plate is in contact with the top surface of the conveyor belt. There is a certain gap between the surfaces, and the material will pass through the gap, resulting in incomplete discharge of the unloader and serious material leakage

[0004] (2) The bottom surface of the unloading plate is in contact with the top surface of the conveyor belt, which will wear the conveyor belt, resulting in a significant decrease in the service life of the conveyor belt and increasing the cost of material transportation

[0005] (3) The existing plow unloader lacks necessary dust and ash collection devices, resulting in a very harsh unloading site environment and serious pollution

[0006] (4) When the existing plow unloader is unloading, the existing materials on the conveyor must be transported before the eight-shaped unloading plate of the unloader can be dropped. Otherwise, the unloading plate will fall, and the material on the conveyor belt will The material is sandwiched between the bottom surface of the unloading plate and the top surface of the conveyor belt, and the leakage phenomenon will be more serious

Therefore, the existing plow unloader cannot realize the random switching of the belt material

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