Gravel sieving device capable of conveniently adjusting sieving sizes

Abstract

The invention discloses a gravel sieving device capable of conveniently adjusting sieving sizes, relates to the technical field of gravel sieving and mainly aims at solving the problem that the sieving size of the existing device is inconvenient to adjust. The gravel sieving device comprises a sieving box and sieve nets, wherein two groups of sieve net assemblies vertically separated are mounted in the sieving box; and each sieve net assembly comprises multiple sizes of sieve nets and winding rollers. The gravel sieving device further comprises a crushing mechanism, wherein the crushing mechanism comprises a first motor, a rotating shaft and a crushing shaft, a disc is mounted on the rotating shaft and located below a bottom opening of a feeding hopper, a leaking hole matched with the bottom opening of the feeding hopper is formed in the disc, and a vibrating mechanism is arranged in the sieving box and located between two groups of sieve net assemblies; and the vibrating mechanism comprises a mounting shaft, a first spring and a vibrating ball. By arranging the sieve net assemblies in the application, the effect of adjusting the sieving sizes is realized. The structure is simple,the operation is convenient, and the practicability is high. By arranging the vibrating mechanism, multiple sizes of sieve nets can be driven to vibrate, and the sieving efficiency is increased.

Description

technical field [0001] The invention relates to the technical field of sand and gravel screening, in particular to a sand and gravel screening device which is convenient for adjusting the screening size. Background technique [0002] Sand and gravel are common raw materials in the field of construction engineering, and are also widely used in civil engineering structure experiments. Since the sand directly transported from the sand and gravel field or other places often has problems such as gravel in the sand or the gradation of the sand does not meet the experimental requirements, it often needs to be sieved before it can meet the requirements for use. [0003] The size of the sieve holes installed in the existing sand and gravel screening device is generally fixed, so when sand and gravel of different sizes need to be screened, the screen needs to be replaced, which is very troublesome and costly. A large amount of time causes work efficiency to drop substantially, and th...

AI Technical Summary

Problems solved by technology

Since the sand directly transported from the sand quarry or other places often has problems such as gravel in the sand or the gradation of the sand does not meet the experimental requirements, it often needs to be sieved before it can meet the requirements for use.

[0003] The size of the sieve holes installed in the existing sand and gravel screening device is generally fixed, so when sand and gravel of different sizes need to be screened, the screen needs to be replaced, which is very troublesome and costly. A lot of time, resulting in a sharp drop in work efficiency, and the practicability of the device is not strong

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