A vibrating and vibrating integrated sand and gravel screening device for concrete preparation

Abstract

The invention discloses a vibration-swing integration type gravel sieving device for concrete preparation. The vibration-swing integration type gravel sieving device comprises a base, an outer sleeverod, an inner sliding rod, a transverse plate, a swing rod, a sieving box, a double-shaft motor, a left cam and a right cam, wherein the bottom of the outer sleeve rod is provided with an electromagnet, the electromagnet is matched with a magnet, a swing shaft is perpendicularly welded to the front side of a vertical column, the swing rod is mounted on the swing shaft in a rotating manner, a leftconnecting rod and a right connecting rod are separately hinged to the left and right parts of the lower side of the swing rod, and the left connecting rod and the right connecting rod vertically penetrate downwards through the transverse plate and are hinged to the sieving box in a contact manner. Through the intermittent power supply and outage of the electromagnet, the sieving box is driven tomove upwards and downwards intermittently, a vibrating effect is realized, the sieving speed is greatly increased, and at the same time, the condition that gravels block holes during sieving is effectively avoided; and through the leftward and rightward swing of the swing rod, the sieving box is driven to swing leftwards and rightwards, the flow rate of gravels in the sieving box is greatly increased, and the sieving speed is further increased.

Description

technical field [0001] The invention relates to a grinding device, in particular to a vibration-vibration integrated sand and gravel screening device for concrete preparation. Background technique [0002] Sand and gravel are commonly used in building decoration, and sand and gravel refer to a loose mixture of sand grains and crushed stones. In geology, mineral or rock particles with a particle size of 0.074~2mm are called sand, and those with a particle size larger than 2mm are called gravel or breccia (the difference between the two lies in the degree of rounding, see the entry conglomerate and sandstone for details. ). If most of the gravel in the sand is gravel, it is called sand gravel. Some people also refer to sandstone as sandstone in daily life. [0003] Sand and gravel need to be screened before use. Sand and gravel with different particle sizes have inconsistent effects, so they need to be screened. In the prior art, the work throws sand and gravel onto the scr...

AI Technical Summary

Problems solved by technology

[0003] Sand and gravel need to be screened before use. Sand and gravel with different particle sizes have inconsistent effects, so they need to be screened. In the prior art, the work throws sand and gravel onto the screen. This method is extremely inefficient and the labor intensity of workers is very high. Large, while ordinary screening devices are slow in screening and prone to blockage

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