CN213558276U

CN213558276U - Concrete aggregate screening equipment

Info

Publication number: CN213558276U
Application number: CN202021719957.9U
Authority: CN
Inventors: 马永超; 康元伟
Original assignee: Shaanxi Ruixing Building Materials Technology Co ltd
Current assignee: Shaanxi Ruixing Building Materials Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-06-29
Anticipated expiration: 2030-08-17

Abstract

The application relates to concrete aggregate screening equipment, relates to the field of concrete equipment, and aims to solve the problem that a screen is easy to block so as to reduce screening efficiency; the side wall of the screening box is provided with a moving groove parallel to the screen, the moving groove is vertical to the roller, the driving assembly is arranged outside the screening box, and the driving assembly drives the roller to move along the moving groove; the coarse material port is positioned above the screen; the fine material port is positioned at the bottom of the screening box. This application realizes the real-time clearance of screen cloth through setting up screen cloth cleaning device for the screen cloth can remain unblocked throughout, thereby improves screening efficiency.

Description

Concrete aggregate screening equipment

Technical Field

The application relates to the field of concrete equipment, in particular to concrete aggregate screening equipment.

Background

Concrete aggregate refers to sand and stone which play a skeleton role in concrete, wherein the aggregate with the particle size of more than 5mm is called as coarse aggregate, and the coarse aggregate does not meet the engineering with high requirements, so the aggregate needs to be screened, the aggregate with proper particle size is selected, and the aggregate is screened according to the particle size by adopting aggregate screening equipment at present.

For example, patent publication No. CN209379397U discloses a concrete aggregate screening machine, which comprises a bracket, a screening bin provided with a feeding port and a discharging port, wherein a screening plate is rotatably connected in the screening bin through a first rotating shaft, and baffles for preventing aggregates from falling from the side edges of the screening plate are arranged around the screening plate; a rotating mechanism for driving the sieve plate to rotate around the first rotating shaft in a fixed angle in a forward direction and then in a reverse direction for sequential circulation is arranged in the sieving bin; the sieve plate is provided with a plurality of first baffle plates connected with one side baffle plate and a plurality of second baffle plates connected with the other side baffle plate, and gaps are reserved between the first baffle plates, the second baffle plates and the opposite baffle plates. The sieve plate rotates around the first rotating shaft positively and negatively and reciprocates circularly, so that the aggregate on the sieve plate slides on the sieve plate in a reciprocating manner, and the times of sieving the aggregate are increased. The aggregate will form S-shaped route under the effect of first baffler and second baffler at the slip in-process, has increased the contact time and the contact area of aggregate with the sieve, and then makes the screening effect of aggregate better.

In view of the above-mentioned related art, the inventors thought that there was a problem that the screen was easily clogged, thereby decreasing the screening efficiency.

SUMMERY OF THE UTILITY MODEL

In order to reduce the screen cloth and block up, improve the screening efficiency of aggregate, this application provides a concrete aggregate screening equipment.

The application provides a concrete aggregate screening equipment adopts following technical scheme:

a concrete aggregate screening device comprises a support, a screening box with an opening at the upper part, a screen, a vibrator and a screen cleaning device, wherein a coarse material opening and a fine material opening are formed in the screening box; a moving groove parallel to the screen is formed in the side wall of the screening box and is perpendicular to the roller, the driving assembly is arranged outside the screening box and drives the roller to move along the moving groove; the coarse material opening is positioned above the screen; the fine material port is located at the bottom of the screening box.

By adopting the technical scheme, the vibrator is turned on, the screen is vibrated, the movement of the aggregates on the screen is accelerated, and the separation speed of the coarse and fine aggregates is accelerated; the driving component drives the roller to move along the sliding groove parallel to the position of the screen, and the roller pushes the aggregate in the mesh out of the screen, so that the function of cleaning the screen is realized; the driving assembly is arranged outside the screening box, so that personnel can conveniently control and check the driving assembly, and the space below the screen can not be occupied, so that the roller can comprehensively clean the whole screen; the aggregate of different diameters can be respectively dropped from the screening box by the arrangement of the coarse material port and the fine material port, so that the classified collection of the coarse aggregate and the fine aggregate by personnel is facilitated.

Preferably, the screen is obliquely arranged in the screening box, and one side of the screen close to the coarse material opening is lower than one side of the screen far away from the coarse material opening.

Through adopting above-mentioned technical scheme, the screen cloth slope installation makes the coarse aggregate landing in the lower one side of screen cloth, and the thick material mouth on the cooperation screening case can let the coarse aggregate drop automatically from the thick material mouth, need not personnel's manual clearance to can avoid the coarse aggregate to pile up on the screen cloth, influence the screening efficiency of screen cloth.

Preferably, the drum is provided with a plurality of protrusions, and the distance between two adjacent protrusions is equal to the distance between two adjacent meshes on the screen.

Through adopting above-mentioned technical scheme, at the roll in-process of cylinder, the arch on the cylinder gets into in the mesh of screen cloth, can be ejecting with the aggregate that blocks in the mesh for the mesh of screen cloth remains unobstructed throughout.

Preferably, the drive assembly includes connecting axle, gear, rack, motor and mount table, the mount table is located the screening case is outside, be equipped with the spout on the mount table, the spout with the shifting chute is parallel, the motor slides and sets up in the spout, the connecting axle with the output shaft coaxial coupling of motor, the one end that the motor was kept away from to the connecting axle with cylinder coaxial coupling, the gear is located the motor with between the cylinder, gear coaxial coupling in on the connecting axle, the rack is fixed to be set up on the mount table, and with shifting chute parallel arrangement, the rack with gear intermeshing.

Through adopting above-mentioned technical scheme, start the motor, the motor drives the connecting axle and takes place to rotate, drive the rotation that the gear that links to each other with the connecting axle and cylinder realize self, and gear and rack intermeshing, and the rack is fixed on the mount table, consequently, along with the rotation of gear, drive the motor that links to each other with the connecting axle and remove in the spout, and make the connecting axle remove along the shifting chute, thereby make the cylinder can realize the removal parallel with the screen cloth below the screen cloth when around the connecting axle pivoted. The driving assembly can enable the roller to rotate and can also achieve translation of the roller along the bottom of the screen, so that the roller can comprehensively clean the screen.

Preferably, the side wall of the screening box is provided with a rolling groove parallel to the moving groove, the rolling groove and the moving groove are located at the same height, and the connecting shaft penetrates through the roller and abuts against the rolling groove.

Through adopting above-mentioned technical scheme, connecting axle one end is supported in the shifting chute, and the other end supports in the roll inslot to it is more stable to make the cylinder move in the screen cloth below.

Preferably, the movable groove is provided with a telescopic protective cover, the protective cover is provided with a through hole, and the connecting shaft penetrates through the through hole.

By adopting the technical scheme, when the protective cover is not added, the aggregates fall out of the moving groove, firstly, the aggregates fall into the rack and the sliding groove to influence the movement of the gear, and secondly, some fine aggregates directly fall out of the moving groove to cause the waste of screened aggregates; after having added the safety cover, the lateral wall that the safety cover will sieve the case seals, can prevent to sieve the aggregate in the case and fall out from the shifting chute, and the safety cover can stretch out and draw back, then can guarantee that the connecting axle when removing in the shifting chute, the safety cover can play the effect of sealing the shifting chute all the time to protected drive assembly, guaranteed the normal clear of screening and clearance.

Preferably, a protective shell is arranged above the mounting table, and a button for controlling the motor is arranged outside the protective shell.

By adopting the technical scheme, the protective shell can prevent aggregate outside the screening box from falling into the rack and the chute to influence the normal operation of the driving assembly, so that the cleaning work is hindered; the button can supply personnel at any time to operate the motor externally, and the personnel can be selective start drive assembly to carry out screen cloth cleaning, and the use is more convenient and rapid.

Preferably, screening case opening top is provided with the feeder hopper, the slope is provided with a plurality of baffles on the feeder hopper inner wall, the baffle low one end with form the blanking mouth between the feeder hopper inner wall, adjacent two-layer on the baffle the blanking mouth dislocation set.

Through adopting above-mentioned technical scheme, the baffle can cushion the speed that the aggregate got into the screening case to disperse the aggregate, in order to avoid the aggregate to block in the mesh of screen cloth because of the whereabouts is too fast under the gravity impact, cause the mesh to block up.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the screen cleaning device is arranged to clean the coarse aggregate clamped on the screen from the meshes, so that the meshes of the screen are kept smooth all the time, and the screening efficiency is improved;

2. through the arrangement of the driving assembly, the roller is driven to rotate, and meanwhile, the roller moves in the moving groove parallel to the position of the screen, so that the function of cleaning the whole surface of the screen is realized;

3. through setting up the baffle, the speed that the buffering aggregate got into the screening case to avoid the aggregate to block in the mesh of screen cloth under the gravity impact, cause the mesh to block up.

Drawings

FIG. 1 is a schematic structural view in a vertical section parallel to the axial direction of a drum of a concrete aggregate screening apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a concrete aggregate screening apparatus according to an embodiment of the present application in a vertical section perpendicular to the axial direction of a drum;

FIG. 3 is a schematic structural view of a vertical section of a concrete aggregate screening device in a state without a protective casing according to an embodiment of the present application;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic structural view of a screen cleaning apparatus of a concrete aggregate screening device according to an embodiment of the present application.

Description of reference numerals: 1. a support; 2. screening the box; 3. screening a screen; 4. a vibrator; 5. a screen cleaning device; 51. a drum; 511. a protrusion; 52. a drive assembly; 521. a connecting shaft; 522. a gear; 523. a rack; 524. a motor; 525. an installation table; 526. a chute; 53. a moving groove; 6. a coarse material port; 7. a fine material port; 8. a rolling groove; 9. a protective cover; 10. a through hole; 11. a protective shell; 12. a button; 13. a feed hopper; 14. and a baffle plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses concrete aggregate screening equipment. Referring to fig. 1 and 2, the concrete aggregate screening equipment comprises a support 1, a screening box 2, a screen 3, a vibrator 4 and a screen cleaning device 5, wherein a coarse material opening 6 and a fine material opening 7 are formed in the screening box 2, the support 1 is welded below the screening box 2, the screen 3 is obliquely arranged inside the screening box 2, the coarse material opening 6 is located above the screen 3, the fine material opening 7 is located at the bottom of the screening box 2, and the coarse material opening 6 and the fine material opening 7 are arranged to enable aggregates with different diameters to fall from the screening box 2, so that the aggregates can be classified and collected conveniently; the vibrator 4 is arranged on the screen 3, so that the screen 3 vibrates to accelerate screening of the aggregates, and the screening efficiency of the aggregates is improved; the side of screen cloth 3 that is close to coarse fodder mouth 6 is less than the side that screen cloth 3 kept away from coarse fodder mouth 6, can accelerate the coarse aggregate landing in the lower side of screen cloth 3 to from coarse fodder mouth 6 drops, in order to avoid coarse aggregate to pile up on screen cloth 3.

Referring to fig. 3, the screen cleaning device 5 includes a roller 51 and a driving assembly 52, a moving groove 53 parallel to the screen 3 is formed on the side wall of the screening box 2, the roller 51 is parallel to the screen 3 and abuts against the lower side of the screen 3, the moving groove 53 is perpendicular to the roller 51, the driving assembly 52 is arranged outside the screening box 2 and drives the roller to move along the moving groove; the drum 51 is provided with a plurality of protrusions 511, and the distance between two adjacent protrusions 511 is equal to the distance between two adjacent meshes on the screen 3, so that the protrusions 511 can be aligned with the meshes, thereby ejecting the aggregates clamped in the meshes and enabling the coarse aggregates to fall off from the meshes.

Referring to fig. 4 and 5, the driving assembly 52 includes a connecting shaft 521, a gear 522, a rack 523, a motor 524 and a mounting platform 525, the mounting platform 525 is welded outside the screening box 2, a sliding slot 526 is formed in the mounting platform 525, the sliding slot 526 is parallel to the moving slot 53, the motor 524 is slidably disposed in the sliding slot 526, the connecting shaft 521 is coaxially connected with an output shaft of the motor 524, one end of the connecting shaft 521, which is far away from the motor 524, is coaxially connected with the drum 51, the gear 522 is located between the motor 524 and the drum 51 and is coaxially connected with the connecting shaft 521, the connecting shaft 521 and the output shaft of the motor 524, the connecting shaft 521 and the drum 51, the gear 522 and the connecting shaft 521 are all in key connection, the rack 523 is mounted on the mounting platform 525 by bolts and is parallel to the moving slot 53. The motor 524 is started, the motor 524 drives the connecting shaft 521 to rotate, so that the gear 522 connected with the connecting shaft 521 and the roller 51 rotate, the gear 522 is meshed with the rack 523, and the rack 523 is fixed on the mounting table 525, therefore, the gear 522 moves on the rack 523, and the gear 522 drives the motor 524 connected with the connecting shaft 521 to move in the sliding groove 526, so that the connecting shaft 521 can move along the moving groove 53, and the roller 51 can move parallel to the screen 3 below the screen 3 while rotating around the connecting shaft 521, so that the screen is cleaned in all directions.

Referring to fig. 2, the side wall of the sieving box 2 is provided with a rolling groove 8 parallel to the moving groove 53, and one end of the connecting shaft 521 is supported in the moving groove 53 and the other end is supported in the rolling groove 8, so that the roller 51 moves more stably under the sieve mesh 3.

Referring to fig. 2 and 3, in order to prevent the aggregates in the screening box 2 from falling into the driving assembly 52 and affecting the movement of the driving assembly 52, a telescopic protective cover 9 is arranged on the moving groove 53, and the protective cover 9 in the embodiment is an organ type protective cover 9; referring to fig. 4, a through hole 10 is formed in the protective cover 9, the connecting shaft 521 penetrates through the through hole 10, and the protective cover 9 can play a role in protecting the driving assembly 52, so that normal screening and cleaning can be guaranteed. Meanwhile, in order to prevent aggregate outside the screening box 2 from falling into the rack 523 and the chute 526 and affecting the normal operation of the driving assembly 52, a protective shell 11 is further arranged above the mounting table 525, a button 12 for controlling the motor 524 is arranged outside the protective shell 11, and the button 12 can be used for a person to selectively start the driving assembly 52 to clean the screen 3.

Referring to fig. 1 and 2, a feed hopper 13 is welded above an opening of the screening box 2, a plurality of baffles 14 are obliquely arranged on the inner wall of the feed hopper 13, a blanking port is formed between one end of each baffle 14, which is low, and the inner wall of the feed hopper 13, and the blanking ports on the two adjacent layers of baffles 14 are arranged in a staggered manner. The baffle plate 14 can buffer the speed of aggregate entering the screening box 2 so as to prevent the aggregate from falling rapidly under the gravity impact and being clamped in meshes of the screen 3 to cause mesh blockage and reduce the screening efficiency.

The implementation principle of the concrete aggregate screening equipment in the embodiment of the application is as follows: starting the vibrator 4, and starting the screening equipment to work; after the aggregates are put into the blanking hopper, the aggregates in the blanking hopper sequentially pass through the blanking ports on the baffles 14 and finally enter the screening box 2 along the blanking ports, the coarse aggregates are intercepted on the screen 3 by the screen 3, and the coarse aggregates slide down to the lower side of the screen 3 under the action of vibration and self gravity and fall out from the coarse material port 6; the fine aggregate falls into the bottom of the screening box 2 from the meshes of the screen 3 and falls from the fine material port 7; when the separation effect of coarse and fine aggregates is poor, the situation that meshes of the screen are blocked is shown, at the moment, the button 12 is pressed to open the motor 524, the motor 524 drives the connecting shaft 521 and the gear 522 to rotate, the connecting shaft 521 drives the roller 51 to rotate, the gear 522 moves along the length direction of the rack 523 and drives the motor 524 to move in the sliding groove 526, so that the roller 51 rotates around the connecting shaft 521, and meanwhile, the movement parallel to the screen 3 is realized below the screen 3; the projections 511 of the drum 51 are capable of ejecting the aggregates stuck in the meshes and allowing the aggregates to fall from the openings 6. The screen cloth cleaning device 5 that sets up in this application can clear up screen cloth 3 to reduce screen cloth 3 and block up, thereby improve the screening efficiency of aggregate.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The concrete aggregate screening equipment is characterized by comprising a support (1), a screening box (2) with an opening at the upper part, a screen (3), a vibrator (4) and a screen cleaning device (5), wherein the screening box (2) is provided with a coarse material opening (6) and a fine material opening (7), the screen (3) is arranged inside the screening box (2), the vibrator (4) is arranged on the screen (3), the screen cleaning device (5) comprises a roller (51) and a driving assembly (52), and the roller (51) is arranged in parallel with the screen (3) and is abutted against the lower part of the screen (3); a moving groove (53) parallel to the screen (3) is formed in the side wall of the screening box (2), the moving groove (53) is perpendicular to the roller (51), the driving assembly (52) is arranged outside the screening box (2), and the driving assembly (52) drives the roller (51) to move along the moving groove (53); the coarse material opening (6) is positioned above the screen (3); the fine material opening (7) is located at the bottom of the screening box (2).

2. A concrete aggregate screening apparatus according to claim 1, wherein said screen (3) is installed in said screening box (2) at an inclination such that the side of said screen (3) adjacent to said opening (6) is lower than the side of said screen (3) remote from said opening (6).

3. A concrete aggregate screening apparatus according to claim 1, wherein a plurality of protrusions (511) are provided on the drum (51), and the distance between two adjacent protrusions (511) is equal to the distance between two adjacent meshes on the screen (3).

4. The concrete aggregate screening device according to claim 1, wherein the driving assembly (52) comprises a connecting shaft (521), a gear (522), a rack (523), a motor (524) and a mounting table (525), the mounting table (525) is arranged outside the screening box (2), a sliding groove (526) is formed in the mounting table (525), the sliding groove (526) is parallel to the moving groove (53), the motor (524) is arranged in the sliding groove (526) in a sliding manner, the connecting shaft (521) is coaxially connected with an output shaft of the motor (524), one end, far away from the motor (524), of the connecting shaft (521) is coaxially connected with the roller (51), the gear (522) is positioned between the motor (524) and the roller (51), the gear is coaxially connected to the connecting shaft (521), and the rack (523) is fixedly arranged on the mounting table (525), and is arranged in parallel with the moving groove (53), and the rack (523) is engaged with the gear (522).

5. The concrete aggregate screening apparatus according to claim 4, wherein the side wall of the screening box (2) is provided with a rolling groove (8) parallel to the moving groove (53), the rolling groove (8) and the moving groove (53) are positioned at the same height, and the connecting shaft (521) penetrates through the roller (51) and abuts against the rolling groove (8).

6. The concrete aggregate screening device according to claim 4, wherein a telescopic protective cover (9) is arranged on the moving groove (53), a through hole (10) is formed in the protective cover (9), and the connecting shaft (521) penetrates through the through hole (10).

7. The concrete aggregate screening apparatus according to claim 4, wherein a protective housing (11) is provided above the mounting table (525), and a button (12) for controlling the motor (524) is provided outside the protective housing (11).

8. The concrete aggregate screening equipment according to claim 1, wherein a feed hopper (13) is arranged above the opening of the screening box (2), a plurality of baffles (14) are obliquely arranged on the inner wall of the feed hopper (13), a blanking port is formed between the lower end of each baffle (14) and the inner wall of the feed hopper (13), and the blanking ports on the two adjacent layers of the baffles (14) are arranged in a staggered mode.