Multi-directional horizontal movement type gravel screening device for concrete proportioning

Abstract

The invention discloses a multi-directional horizontal movement type gravel screening device for concrete proportioning. The device comprises a base, outer sleeve rods, inner sliding rods, a transverse plate, a driving motor, a special-shaped gear and a screening box. Magnets are arranged at the lower ends of the inner sliding rods. Electromagnets are arranged at the bottoms of the outer sleeve rods and matched with the magnets. The lower ends of connecting rods are connected with the screening box in a welded mode. An output shaft of the driving motor faces the front and is in interference fit with the special-shaped gear. The electromagnets are intermittently electrified and de-energized, thus, the screening box moves up and down intermittently, the vibration effect is achieved, the screening speed is greatly increased, and meanwhile, the situation that holes are blocked by gravels during screening is effectively avoided; the screening box slides leftwards and rightwards, thus, horizontal movement in the up-down direction and in the left-right direction is achieved, and the screening speed is further increased; and furthermore, compared with manual screening, more time and laborare saved, in addition, the structure is simple, the manufacturing cost is greatly reduced, and the practicability is high.

Description

Technical field [0001] The invention relates to a grinding device, in particular to a multi-directional translational sand and gravel screening device for concrete preparation. Background technique [0002] Sand and gravel are commonly used in construction and decoration, and gravel refers to a loose mixture of sand and crushed stone. Geologically, the particle size is [0003] 0.074-2mm mineral or rock particles are called sand, and those with a particle size greater than 2mm are called gravel or breccia (the difference between the two is that they are rounded [0004] The degree is different, see the entry conglomerate, sandstone in detail). If the gravel in the sand is mostly gravel, it is called sand gravel. Some people call sandstone sandstone in daily life. [0005] Sand and gravel need to be screened before use. Sand and gravel of different particle sizes have inconsistent effects and therefore need to be screened. In the prior art, the work puts sand and gravel on the scree...

AI Technical Summary

Problems solved by technology

[0005] 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

Images