Constant-pressing-force sweeping system used for ribbon conveyer and having automatic compensation function

Abstract

The invention belongs to the technical field of transportation machines and provides a constant-pressing-force sweeping system used for a ribbon conveyer and having an automatic compensation function. By the adoption of the constant-pressing-force sweeping system, the contact force between a scraping plate and a conveying belt is constant, and an ideal cleaning effect is achieved. The constant-pressing-force sweeping system used for the ribbon conveyer and having the automatic compensation function comprises a sweeper assembly, a rotating assembly, a hydraulic system and an electric control system. The rotating assembly is connected with a sweeper and a piston rod of a hydraulic cylinder of the hydraulic system. The electric control system detects and controls pressure information of the hydraulic cylinder. When the conveyer is stopped, the scraping plate is controlled to be separated from the conveying belt, so that the starting resistance when the conveyer is started next time is reduced; after the conveyer is started, the scraping plate is controlled to rapidly make contact with the conveying belt, and the set pressing force is obtained; when the scraping plate is abraded, an oil cylinder is automatically replenished with oil, and the effect that the pressure in the oil cylinder is constant is guaranteed; and when the scraping plate is abraded to the limit, the conveyer is stopped, and an alarm is given. By the adoption of the constant-pressing-force sweeping system, the starting resistance of the conveyer can be reduced, the pressing force between the scraping plate and the conveying belt is automatically controlled to be constant, and the sweeping efficiency and the automation degree are improved.

Description

technical field [0001] The invention belongs to the technical field of transportation machinery, in particular to a belt conveyor constant pressure cleaning system with automatic compensation function. Background technique [0002] Belt conveyors are widely used in the transmission of various materials such as coal, cement, sand and gravel. Part of the conveyed materials will often stick to the working surface of the conveyor belt and cannot be removed during unloading. The materials stuck to the surface of the conveyor belt , after being unloaded by the head roller, it is brought back to the unloaded section, and the accumulation of scale on the idler roller and the reversing roller will cause the conveyor belt to deviate, increase the running resistance of the conveyor belt, and accelerate the wear of the conveyor belt . In order to reduce and eliminate the impact of the bonded material on the conveyor belt on the conveying equipment and the environment, it is necessary t...

AI Technical Summary

Problems solved by technology

The oil-gas spring has a nonlinear displacement force relationship, and the output force characteristics will change with the movement of the oil cylinder, the change of the gas state in the accumulator, and the change of the ambient temperature, so the pressing force of the cleaning block and the tape cannot be guaranteed to be constant.

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