CN212576781U

CN212576781U - Drum-type automatic sand screening machine

Info

Publication number: CN212576781U
Application number: CN202020776198.3U
Authority: CN
Inventors: 冀延文; 王辉; 王国栋; 高天翔
Original assignee: Qingdao No 1 Construction Group Co Ltd
Current assignee: Qingdao No 1 Construction Group Co Ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-02-23
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a drum-type automatic sand screening machine, which comprises a screening mechanism for screening sand and stone to be screened into different granularities, a material conveying mechanism for conveying the sand and stone to be screened to the screening mechanism, and an output mechanism positioned below the sand screening mechanism and used for receiving and outputting the screened sand and stone; screening mechanism includes the support for will wait to sieve the sand and carry out the first cylinder of round platform shape of screening for the first time, overlap locate on the first cylinder and length be less than the first cylinder be used for carrying out the second cylinder of screening again with the sand after the first cylinder screening, run through in the both ends rotation in the first cylinder and connect the pivot on the support, connect a plurality of connecting rods between first cylinder, second cylinder and pivot to and be used for driving pivot pivoted drive arrangement. Through being equipped with first cylinder and second cylinder, can once only sieve out the grit that two kinds or three kinds of particle diameters are different as required, improve work efficiency.

Description

Drum-type automatic sand screening machine

Technical Field

The utility model relates to a construction field specifically is an automatic sand sieving machine of drum-type.

Background

In the construction, need filter the sand, filter debris such as the stone wherein from the sand, guarantee going on of follow-up work, traditional artifical screening sand inefficiency is higher with the cost, can only once only screen the sand of a granularity simultaneously, can not satisfy the demand of building to screening sand efficiency far away. The grain composition of the sand refers to the matching proportion of the sand particles. The graded sand not only can save cement, but also improves the compactness and strength of concrete and mortar.

At present, the easy production adhesion when sand is stacked, some present sand screening machines, moist sand adhesion are in the same place, directly drop into the sand screening machine and produce great influence to the effect of screening sand, and in addition, a sand can only be selected to present sand screening machine, does not accord with the requirement that the workman used to multiple sand.

Disclosure of Invention

To the above problem, the utility model provides a sand screening machine can smash the sand of waiting to sieve of adhesion, can sieve out the sand of two kinds or three kinds of granularity simultaneously according to the demand.

In order to solve the above problem, the utility model provides a technical scheme: a drum-type sand screening machine comprises a screening mechanism for screening sand to be screened into different granularities, a material conveying mechanism for conveying the sand to be screened to the screening mechanism, and an output mechanism positioned below the screening mechanism and used for receiving and outputting the screened sand; the screening mechanism comprises a bracket, a first roller, a second roller, a rotating shaft, a plurality of connecting rods and a driving device, wherein the first roller is in a circular truncated cone shape and used for primarily screening sand to be screened, the second roller is sleeved on the first roller and is shorter than the first roller and used for secondarily screening the sand screened by the first roller, the rotating shaft penetrates through two ends in the first roller and is rotatably connected to the bracket, the connecting rods are connected among the first roller, the second roller and the rotating shaft, and the driving device is used for driving the rotating shaft to rotate; the driving device comprises a first servo motor, a driving wheel connected to an output shaft of the first servo motor, a driven wheel fixed on the rotating shaft and arranged corresponding to the driving wheel, and a belt connected between the driving wheel and the driven wheel; the material conveying mechanism comprises a material conveying bin positioned at the smaller end of the first roller, a stirring rod positioned in the material conveying bin, a second servo motor connected to the material conveying bin and used for driving the stirring rod to rotate, and an adjustable supporting rod which is used for supporting the material conveying bin and has adjustable height; the output mechanism comprises three output bins which are positioned right below the second roller, the position where the diameter of the first roller is maximum and the position where the diameter of the second roller is maximum.

Above-mentioned drum-type screening sand machine for building engineering, bracing piece with adjustable includes the sleeve that has the screw thread through-hole, is located the carriage release lever in the sleeve to and be located the puller bolt in the screw thread through-hole.

In the drum-type sand screening machine for construction engineering, the included angle between the side edges of the first and second truncated cone-shaped rollers and the horizontal plane is 10-30 degrees.

The utility model has the advantages that: the sand with different particle sizes can be screened out at one time by arranging the first roller and the second roller; by adopting the first roller and the second roller which are in the shape of circular truncated cones, sand in the rollers can be rolled and output by the gravity action in the process of rotating and screening the sand; the stirring rod is arranged in the material conveying bin, so that the adhered sand can be stirred and crushed, and the screening effect in the subsequent sand screening process is improved; the height of the conveying bin is adjusted through the adjustable supporting rod, sand to be screened can be input into the first roller and the second roller according to requirements, and sand with two or three granularities is screened out.

Drawings

FIG. 1 is a cross-sectional view of the present device;

FIG. 2 is a right side view of the present device;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings 1-3.

The utility model provides a drum-type sand screening machine for construction, is including being used for sieving into the screening mechanism of different granularities with the sand that awaits screening, is used for carrying the defeated material mechanism of screening mechanism with the sand that awaits screening, is located the output mechanism that is used for accepting and exporting the sand after the screening of screening mechanism below.

Screening mechanism includes support 1 for carry out the first cylinder 2 of the round platform shape of screening for the sand that will wait to screen, overlap locate first cylinder 2 on and length be less than first cylinder 2 be used for carrying out the second cylinder 3 of screening again with the sand after the first screening, run through in the both ends rotation in first cylinder 2 and connect pivot 4 on support 1, connect a plurality of connecting rods 5 between first cylinder 2, second cylinder 3 and pivot 4 to and be used for driving 4 pivoted drive arrangement of pivot. The driving device comprises a first servo motor 6, a driving wheel 7 connected to an output shaft of the first servo motor 6, a driven wheel 8 fixed on the rotating shaft 4 and arranged corresponding to the driving wheel 7, and a belt 9 connected between the driving wheel 7 and the driven wheel 8, wherein the included angle between the side edges of the first roller 2 and the second roller 3 in the shape of a circular truncated cone and the horizontal plane is 10-30 degrees, and the preferred included angle is 20 degrees;

first cylinder

2 and 3 sides of second cylinder and pivot 4 contained angle are established to 20 degrees, and the contained angle is too big can lead to the sand to obtain the complete roll screening and directly drop in first cylinder and second cylinder, and the contained angle undersize then can make the sand only roll in the cylinder and rotate and can not drop, compares with the traditional screening sand machine with certain angle of drum type cylinder slope simultaneously, and the atress between pivot 4 and the support 1 is even, is difficult for causing the destruction of screening sand machine.

Defeated material mechanism is including being located 2 less feed bin 10 of diameter of first cylinder, is located the stirring rod 11 of feed bin 10, connects and is used for driving 11 pivoted second servo motor 12 of stirring rod on feed bin 10 to and be used for supporting adjustable bracing piece of feed bin 10, adjustable bracing piece is including the sleeve 13 that has the screw through-hole, is located the carriage release lever 14 in the sleeve 13 to and be located the tight bolt 15 in top in the screw through-hole. The stirring rod 11 is arranged, so that the adhered sand can be stirred and crushed, the subsequent screening effect is improved, the adjustable support rod 1 is connected with the conveying bin 10, the height of the conveying bin 10 can be adjusted according to requirements, when the sand with 2 granularity is screened out, the position of the conveying bin 10 can be adjusted to the position of the second roller 3, and the sand to be screened is directly input into the second roller 3; the feeding mechanism comprises three output bins 16 which are positioned below the second roller 3, at the position where the diameter of the first roller 2 is maximum and at the position where the diameter of the second roller 3 is maximum.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. The utility model provides a drum-type automatic sand screening machine which characterized in that: the sand screening device comprises a screening mechanism for screening sand to be screened into different granularities, a material conveying mechanism for conveying the sand to be screened to the screening mechanism, and an output mechanism which is positioned below the screening mechanism and is used for receiving and outputting the screened sand; the screening mechanism comprises a bracket, a first roller, a second roller, a rotating shaft, a plurality of connecting rods and a driving device, wherein the first roller is in a circular truncated cone shape and used for primarily screening sand to be screened, the second roller is sleeved on the first roller and is shorter than the first roller and used for secondarily screening the sand screened by the first roller, the rotating shaft penetrates through two ends in the first roller and is rotatably connected to the bracket, the connecting rods are connected among the first roller, the second roller and the rotating shaft, and the driving device is used for driving the rotating shaft to rotate; the driving device comprises a first servo motor, a driving wheel connected to an output shaft of the first servo motor, a driven wheel fixed on the rotating shaft and arranged corresponding to the driving wheel, and a belt connected between the driving wheel and the driven wheel; the material conveying mechanism comprises a material conveying bin positioned at the smaller end of the first roller, a stirring rod positioned in the material conveying bin, a second servo motor connected to the material conveying bin and used for driving the stirring rod to rotate, and an adjustable supporting rod which is used for supporting the material conveying bin and has adjustable height; the output mechanism comprises three output bins which are positioned right below the second roller, the position where the diameter of the first roller is maximum and the position where the diameter of the second roller is maximum.

2. The roller-type automatic sand screening machine according to claim 1, wherein: the adjustable support rod comprises a sleeve with a threaded through hole, a moving rod positioned in the sleeve and a puller bolt positioned in the threaded through hole.

3. The roller-type automatic sand screening machine according to claim 1, wherein: the included angle between the side edges of the first roller and the second roller and the horizontal plane is 10-30 degrees.