Impeller feeder for measuring bucket

Abstract

The invention belongs to the technical field of construction equipment, and discloses an impeller feeder for a measuring bucket. The impeller feeder comprises a blade disk, and the blade disk comprises an inner ring, an outer ring and a blade grid ring arranged between the inner ring and the outer ring; the height of the inner ring is higher than the height of the outer ring; the outer ring is fixedly connected with a discharge port at the lower end of the measuring bucket; the inner ring is internally provided with a transmission shaft, and the two ends, located at the inner ring, of the transmission shaft are rotationally connected with the inner ring through a first bearing and a second bearing; the top of the blade disk is provided with an upper rotating baffle, the bottom of the bladedisk is provided with a lower rotating baffle, the upper rotating baffle and the lower rotating baffle are fixedly mounted on the transmission shaft, and opening holes are formed in the positions, corresponding to the blade grid ring, of the upper rotating baffle and the lower rotating baffle in a staggered manner. By means of the impeller feeder, the multiple bearings are arranged in the inner ring, multiplied changes of gaps between the upper and lower rotating baffles and the blade disk after stress due to bearing oil gaps can be effectively avoided, and the flow control accuracy of the impeller feeder is improved.

Description

technical field [0001] The invention belongs to the technical field of construction equipment, and in particular relates to an impeller feeder used for a metering bucket. Background technique [0002] Concrete mixing plants need to measure (weigh) the raw materials that form concrete, such as cement, fly ash, sand, water, admixtures, etc., and then supply them to the mixing tank according to a certain ratio for mixing and mixing to form qualified concrete to ensure the quality of various construction projects. The material feeding device currently used in concrete mixing plants consists of a metering hopper, a metering sensor, and a metering screw mechanism. Cement is automatically fed into the metering hopper from the cement (material) silo, and sent into the mixing tank through the metering screw according to a certain ratio, and fully mixed with various raw materials to form finished concrete. [0003] There is a self-flow phenomenon in the existing material feeding dev...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned disc-type material feeding device needs to rely on the concentricity of the bucket body and the impeller to achieve stable rotation. The deformation of the upper and lower cover plates and the deformation of the bucket body will affect its operation.

In order to avoid affecting its operation, the gap between the upper and lower cover plates and the impeller will be made very large in actual production, but this will cause material leakage, and the precise flow control of the impeller feeder cannot be realized.

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