Sand and gravel aggregate screening device

Abstract

The invention relates to the technical field of building machinery, in particular to a sand and gravel aggregate screening device. By means of automatically screening the sand and gravel aggregate, the sand and gravel aggregate screening device improves the screening speed, increases the sand and gravel aggregate screening amount and improves work efficiency; and meanwhile, people can be far away from a screening site, it is avoided that dust generated during sand and gravel aggregate screening does harm to human bodies, and the practicability and reliability are improved. The sand and gravel aggregate screening device comprises a screening hopper, two groups of first sliding blocks, two groups of second sliding blocks, a first guide rail, a second guide rail, a fixing plate, two groups of right support legs, two groups of left support legs, a first motor, a first speed reducer, a rotating shaft, a connection block and a crankshaft. The top end of the screening hopper is provided with a screening groove in a communicating manner. The right end of the screening groove communicates with the outside of the right end of the screening hopper. The bottom end of the screening groove is provided with multiple groups of screening holes in a communicating manner. The left side and the right side of the front end of the screening hopper are connected with the back ends of the two groups of first sliding blocks correspondingly. The left side and the right side of the back end of the screening hopper are connected with the front ends of the two groups of second sliding blocks correspondingly.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a screening device for sand and gravel. Background technique [0002] As we all know, with the development of society, buildings, bridges, roads and other construction facilities continue to increase, and the demand for sand and gravel continues to increase. According to different construction requirements, the specifications and sizes of sand and gravel are quite different. Screening jobs. [0003] The screening of traditional sand and gravel is generally done by putting the sand and gravel into the sieve hopper, shaking the sieve hopper manually, so that the small and medium particles of the sand and gravel fall through the sieve holes at the bottom of the sieve hopper, and the large particles of sand and gravel remain in the sieve hopper, so as to achieve The purpose of separating particles of different specifications in stone materials is that when manually sc...

AI Technical Summary

Problems solved by technology

[0003] The screening of traditional sand and gravel is generally done by putting the sand and gravel into the sieve hopper, shaking the sieve hopper manually, so that the small and medium particles of the sand and gravel fall through the sieve holes at the bottom of the sieve hopper, and the large particles of sand and gravel remain in the sieve hopper, so as to achieve The purpose of separating particles of different specifications in stone materials is that when manually screening, the screening speed is slow, the amount of sand and gravel to be screened is small, and the work efficiency is low. Poor practicality and reliability

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