Construction sand sieving equipment

Abstract

The invention provides construction sand sieving equipment and relates to the field of construction machinery. The construction sand sieving equipment comprises a sand sieving box. A cross bar is fixedly connected to the left wall of an inner cavity of the sand sieving box. The right end of the cross bar is fixedly connected with the right wall of the inner cavity of the sand sieving box. A sand sieving frame is fixedly mounted at the bottom of the inner cavity of the sand sieving box. A sand sieve is fixedly connected to the right wall of the interior of the sand sieving frame. The left sideof the sand sieving frame is provided with a movable hole. The left side of the sand sieve extends into the movable hole and is fixedly connected with a sand sieving device. According to the construction sand sieving equipment, a second motor is started; the output end of the second motor rotates to drive a circular gear to rotate; the circular gear drives a toothed frame through first racks; thetoothed frame drives a second rack to move; the second rack drives an incomplete gear to rotate; the incomplete gear drives a rotary rod to swing around a pin shaft, so that a scraping brush conductscleaning on the upper surface of the sand sieve, and the blockage prevention effect is achieved.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to construction sand screening equipment. Background technique [0002] Generally speaking, the term concrete refers to the cement concrete obtained by mixing cement as cementing material, sand and stone as aggregate and water in a certain proportion, also known as ordinary concrete, which is widely used in civil engineering. Sand is one of the necessary materials for concrete, so the quality of sand affects the quality of concrete. Therefore, the screening of sand is also extremely important. At present, when the existing concrete sand screening pre-mixing equipment screens sand and gravel, Sand and gravel are easily stuck on the sand screen, which not only affects the efficiency of screening, but also affects the subsequent processing of concrete. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior ar...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a building sand screening equipment, which solves the problem that the existing building sand screening equipment is prone to blockage and is not convenient for sand screening

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