Sand screening device for municipal engineering construction

Abstract

The invention discloses a sand screening device for municipal engineering construction. The sand screening device for municipal engineering construction comprises a sand collecting tank and a roller,the left end of the roller is fixedly connected with a rotating disc, the rotating disc is coaxially and fixedly connected with an output shaft of a first motor, a second bearing is installed at the right end of the roller, an inner hole of the second bearing is connected with a fixed disc, a first bearing is installed on the right end face of the rotating disc, an inner hole of the first bearingis connected with a fixed disc, a movable disc is arranged between the fixed disc and the fixed disc, a threaded through hole and a smooth through hole are formed in the movable disc, a threaded shaftis connected to the threaded through hole in a matched mode, a guide shaft is connected to the smooth through hole in a sliding fit mode, a sand inlet is formed in the fixed disc, the outer side of the movable disc is sleeved with a sweeping ring, and openings are formed in the left and right ends of the lower side surface of the roller. Through the arrangement of the sweeping ring and the movable disc, the sweeping ring can evenly disperse sand piles in the roller left and right and can also move back and forth to sweep coarse sand in the roller to the opening, and then the coarse sand is automatically removed.

Description

technical field [0001] The invention relates to the technical field of sand screening equipment, in particular to a sand screening device for municipal engineering construction. Background technique [0002] In the construction of municipal engineering, it is necessary to screen the sand to remove the stones and other debris from the sand to ensure the follow-up work. On the previous construction site, the traditional manual sand screening is usually used. The screen is tilted and supported on the bottom surface, and then the sand is manually poured on the top of the screen. When the sand slides down in the screen, the sand smaller than the caliber of the sieve passes through the sieve, and the sand larger than the caliber of the sieve is filtered. Sliding down to the bottom of the screen, this method is inefficient and far from meeting the building's demand for sand screening efficiency. The existing sand screening equipment includes vibrating sand screening machine and dr...

AI Technical Summary

Problems solved by technology

[0002] In the construction of municipal engineering, it is necessary to screen the sand to remove the stones and other debris from the sand to ensure the follow-up work. On the previous construction site, the traditional manual sand screening is usually used. The screen is tilted and supported on the bottom surface, and then the sand is manually poured on the top of the screen. When the sand slides down in the screen, the sand smaller than the caliber of the sieve passes through the sieve, and the sand larger than the caliber of the sieve is filtered. Sliding down to the bottom of the screen, this method is inefficient and far from meeting the building's demand for sand screening efficiency

The existing sand screening equipment includes vibrating sand screening machine and drum sand screening machine. The vibrating sand screening machine vibrates the screen through the vibrating machine. This sand screening method has great limitations. The sieve moves up and down, and the top direction of the sieve is exactly the gravity direction of the sieve, resulting in low efficiency of vibrating sand screening

[0003] The drum sand sieving machine fully disperses and screens the sand by making the sand reciprocate along the mesh surface of the screen, so that the sand material is repeatedly rolled and sieved, and the work efficiency is high. It is time-consuming and labor-intensive for personnel to manually shovel the coarse sand away. The existing solution is to tilt the drum, but after the drum is tilted, the sand cannot be evenly distributed on the drum, which affects the sand screening efficiency, and the low end of the drum bears a large load, fragile

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