Sand screening device for municipal road construction

Abstract

The invention discloses a sand screening device for municipal road construction. The sand screening device comprises a stirring cavity, a screening cavity, a collecting groove and a motor, wherein thestirring cavity is separated from the screening cavity through a bottom plate, a feeding hopper is arranged at the upper end of the stirring cavity, a motor is arranged on the right side of the feeding hopper, a rotating shaft is fixedly arranged at the output end of the motor, and the rotating shaft penetrates through the upper end of the stirring cavity to extend into the stirring cavity and isconnected with the upper end of the bottom plate in a rotating mode; and a threaded rod is connected to the right side of the upper end of the screening cavity in a rotating mode, the threaded rod positioned on the inner side of the screening cavity is in threaded connection with a movable block, the lower end of the movable block is hinged to one end of a connecting rod, and the other end of theconnecting rod is hinged to a sieve plate. According to the sand screening device, the design is novel; the movable block reciprocates left and right under the action of the threaded rod, so that thesieve plate is driven to swing through the connecting rod 10, and the screening efficiency of the sieve plate is improved; and the movable plate is arranged to prevent sand from dropping from the gapat the left end of the sieve plate, so that the screening quality is improved.

Description

technical field [0001] The invention relates to the field of municipal machinery, in particular to a sand screening device for municipal road construction. Background technique [0002] From the meaning of the word, the road is the infrastructure for various trackless vehicles and pedestrians; according to its use characteristics, it can be divided into highways, urban roads, country roads, factory and mine roads, forestry roads, examination roads, competition roads, automobile test roads, workshop passages As well as school roads, etc., there were also post roads in ancient China. In addition, it also refers to the way to achieve a certain goal, the way things develop and change. [0003] Cement, sand, etc. are used in the road construction process. The sand needs to be screened before use to prevent the mixing of large rocks and affect the construction effect. Ordinary sand screening is manually operated, which wastes labor. At the same time, the screening efficiency is l...

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Problems solved by technology

[0003] Cement, sand, etc. are used in the road construction process. The sand needs to be screened before use to prevent the mixing of large rocks and affect the construction effect. Ordinary sand screening is manually operated, which wastes labor. At the same time, the screening efficiency is low. Due to the high humidity or the existence of rainwater after rain, the sand is easy to agglomerate the sand. The current sand screening equipment generally does not have a stirring function, which reduces the efficiency of sand screening, and the screen is fixed during the screening process. Low efficiency, reducing work efficiency

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