Vibrating screening machine for asphalt concrete

Abstract

The invention discloses a vibrating screening machine for asphalt concrete, and relates to the technical field of screening machines. According to the technical scheme, the vibrating screening machine comprises a base, a first screening assembly, a conveying assembly and a second screening assembly are arranged on one side of the base, the first screening assembly comprises a fixing table, the fixing table is fixedly connected with the base, a first screening box is hinged to the side, away from the base, of the fixing table, a plurality of screens are fixedly connected into the first screening box from top to bottom, the side, close to the first screening box, of the base is fixedly connected with a plurality of first motors, output ends of the first motors are fixedly connected with lead screws, the lead screws are sleeved with first sliding blocks, and the lead screws and the first sliding blocks are in threaded connection, first connecting rods are hinged to the first sliding blocks, the first connecting rods are far away from the first sliding blocks and are hinged to the first screening box, a discharging opening is formed in the vertical side wall, close to the fixing table, of the first screening box, and an opening and closing assembly is arranged at the discharging opening. The vibrating screening machine has the advantages that the asphalt concrete can be thoroughly split, and the screening effectiveness is improved.

Description

technical field [0001] The invention relates to the technical field of screening machines, in particular to a vibrating screening machine for asphalt concrete. Background technique [0002] The raw materials for the production of asphalt concrete include sand, asphalt, stone powder and various additives. During the preparation of asphalt concrete, it is necessary to separate sand and stones of different particle sizes. At this time, a vibrating screen is required. [0003] Existing vibratory screening machines generally include a screen box in which multiple layers of screens are arranged at intervals from top to bottom. The exciting force makes the screen body do periodic reciprocating vibration along the direction of the exciting force, and the material jumps on the screen surface in a circle, and the materials of different specifications are graded and regularized to the required screen surface through different screen holes, and then transported after collection to desi...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: because the materials are easy to form accumulation on the screen, the materials will block the screen holes, and the smaller the screen holes, the more likely to be blocked, which often requires regular cleaning by the staff. At this time, the accumulated Part of the concrete will be missed during sieving, the sieving is not complete, and the sieving effect is not good

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