Gravel screening device with good screening effect for construction site

Abstract

The invention relates to the technical field of building material processing related equipment, and discloses a gravel screening device with a good screening effect for a construction site. The gravelscreening device comprises a body; a screen plate is movably connected to the interior of the body; a shell is fixedly connected to the interior of the body; a rotating shaft is movably connected tothe interior of the shell; and a gear I is fixedly connected to the exterior of the rotating shaft; the exterior of the gear I is movably connected with a movable frame; through the interaction amongthe rotating shaft, the movable frame, the gear I, teeth, a spring I, a baffle plate and a striking rod, the screen plate can be driven to irregularly swing in a reciprocating manner and continuouslyvibrate in the gravel sieving process, so that the relative movement speed between gravel and the screen plate is increased; and meanwhile, when the screen plate vibrates, the gravel on the surface ofthe screen plate can be vibrated, so that the probability of blockage of screening holes can be greatly reduced, the gravel screening efficiency is improved, the gravel screening effect is better, and the actual use requirement can be met.

Description

technical field [0001] The invention relates to the technical field of equipment related to building material processing, in particular to a sand and gravel screening device for construction sites with better screening effect. Background technique [0002] Sand refers to the loose mixture of sand and gravel, which is one of the essential materials in construction engineering. Due to the different uses of sand and gravel with different particle sizes, the sand and gravel will be screened first after being transported to the construction site, so as to make the best use of everything. The existing sand and gravel screening device is performing screening Most of the time-sharing adopts fixed sieve plates, and the sand and gravel are screened by rolling on the surface of the inclined sieve plate. This screening method leads to low screening efficiency of sand and gravel. It is also easy to block the sieve hole, which will make the screening effect of sand and gravel poor. In ad...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a sand screening device for construction sites with better screening effect, which has high sand screening efficiency, good effect, and the ability to remove the sand produced during the sand screening process. The advantages of dust removal solve the problem of low efficiency and poor effect of sand screening and the large amount of dust generated during sand screening can easily cause harm to the human body

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