sand screening machine for construction machinery

Abstract

The invention discloses a sand screening machine for construction machinery, the structure of which comprises a base, a conveyor belt, a sand feeding bucket, a sand loading bucket, and a sand screening bucket; The loose mud roller is composed of a roller body, a bump, and a rotating shaft; the bump is composed of a slot, a top mud block, and a second spring; the present invention can make The roller body is in close contact with the sand sieve hopper. After the bumps are arranged around the outer surface of the roller body, they can be inserted into the sand sieve hopper through the bumps, so as to clean up the sea mud attached to the sand sieve hopper and avoid sea mud Attached to the sand sieve bucket, causing the sieve hole of the screening drum to be blocked, will not affect the sand screening area of ​​the sieve bucket.

Description

technical field [0001] The invention relates to the construction field, in particular to a sand screening machine for construction machinery. Background technique [0002] The sand and gravel used for plastering walls in buildings needs to be screened, and then mixed with cement and water to become concrete and plastered on the wall. When screening sand and gravel, it is necessary to use a mechanical sand sifter to screen the gravel. [0003] Based on the inventors' findings above, the existing sand screening machine for construction machinery mainly has the following deficiencies, such as: sand and gravel for construction mainly use sea sand, and sea mud will be crushed together with sea sand when mining sand. When the sand and gravel enter the sand screening machine, the sea mud screening drum contacts and presses down on the sea mud through the sand and gravel, so that the sea mud is attached to the screening drum, causing the sand screening holes of the screening drum to...

AI Technical Summary

Problems solved by technology

[0003] Based on the inventors' findings above, the existing sand screening machine for construction machinery mainly has the following deficiencies, such as: sand and gravel for construction mainly use sea sand, and sea mud will be crushed together with sea sand when mining sand. When the sand and gravel enter the sand screening machine, the sea mud screening drum contacts and presses down on the sea mud through the sand and gravel, so that the sea mud is attached to the screening drum, causing the sand screening holes of the screening drum to be blocked. Reduce the area of ​​the sand screen screened by the sand screen

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