CN220969857U - Concrete aggregate screening plant - Google Patents

Abstract

The utility model relates to a concrete aggregate screening device which comprises a base, wherein the upper surface of the base is provided with a screen drum through an elastic mechanism, the cross section of the inner cavity of the screen drum is of a circular structure, the top, the middle and the bottom of one side of the screen drum are respectively provided with a feeding hopper, a first discharge outlet and a second discharge outlet, the screen drum is provided with a vibrating part, the center of the screen drum is rotatably provided with a rotating shaft in a penetrating way, the end part of the rotating shaft is connected with a motor, the motor is arranged on the screen drum, the rotating shaft is provided with two baffles and two screens, the screens and the baffles are in crisscross arrangement, and the outer edges of the screens and the baffles are close to the inner wall of the screen drum. According to the utility model, the two screens are utilized to screen in turn, the screening work is not required to be interrupted, the used screens can be turned to an inverted state and vibrated, so that the blocked aggregate is vibrated from the inside of the screen holes, and the adverse effect of large-area blocking of the screen holes on the screening effect is reduced.

Description

Concrete aggregate screening plant

Technical Field

The utility model belongs to the technical field of concrete aggregate screening, and particularly relates to a concrete aggregate screening device.

Background

Concrete aggregate is one of the indispensable raw materials for concrete production, and the concrete aggregate refers to granular loose materials which play a framework or filling role in concrete. Concrete based on different uses or different properties requires the use of aggregates of different thickness, so that during the concrete production process, the aggregates need to be screened for the production of different concretes. The concrete aggregate screening plant among the prior art, including sieve case and screen cloth, the screen cloth slope is located the sieve incasement, and is equipped with vibration part in order to drive the screen cloth vibration on sieve case or screen cloth. When screening, the aggregates are poured onto the screen, the aggregates with small particle diameters can pass through the screen, and the aggregates with large particle diameters are blocked on the screen and roll off the screen. But in the screening process, the aggregate with partial particle size slightly larger than the sieve mesh can be blocked into the sieve mesh, and the blocked aggregate is inconvenient to take out from the sieve mesh, and after the large area of the sieve mesh is blocked, the aggregate with small particle size can not pass through the sieve mesh rapidly to cause adverse effect on the screening effect.

Disclosure of utility model

The utility model provides a concrete aggregate screening device, which utilizes two screens to screen in turn, does not need to interrupt screening work, and can turn the used screens into an inverted state and vibrate the screens so as to shake off blocked aggregates from the inside of screen holes, thereby reducing the adverse effect of large-area blocking of the screen holes on the screening effect.

The utility model adopts the technical scheme that:

The utility model provides a concrete aggregate screening plant, includes the base, the upper surface of base is equipped with the screen drum through elastic mechanism, the inner chamber cross-section of screen drum personally submits circular structure, the top, middle part and the bottom of screen drum one side are equipped with respectively and throw hopper, bin outlet one and bin outlet two, be equipped with vibrating component on the screen drum, the center department rotation of screen drum wears to have the pivot, pivot end connection has the motor, the motor is located on the screen drum, be equipped with two baffles and two screens in the pivot, screen cloth and baffle are crisscross setting of cross, the outward flange of screen cloth and baffle all is close to the screen drum inner wall.

Further, the elastic mechanism comprises supporting rods arranged on two sides of the upper surface of the base and sliding sleeves arranged on two sides of the screen cylinder, the sliding sleeves are arranged on the supporting rods in a sliding sleeved mode, springs are sleeved on the supporting rods, and the springs are abutted between the bottom ends of the sliding sleeves and the upper surface of the base.

Further, two sides of the bottom of the screen cylinder are provided with discharge ports II.

Further, a material guide plate is arranged at the bottom of the material outlet.

Further, a door plate is hinged to one side, far away from the feeding hopper, of the upper portion of the screen cylinder, a flange is arranged on the door plate, and the flange is locked on the screen cylinder through a locking bolt.

Further, the diameters of the holes of the two screens are the same.

Further, the diameters of the holes of the two screens are different.

Compared with the prior art, the utility model has the beneficial effects that:

Through designing two screens and two baffles into crisscross structures, when the screen cloth of using one side appears blockking up, the motor drives baffle and screen cloth through the pivot and rotates 180 degrees, the screen cloth that will use changes to the opposite side and is in the state of inverting, utilize vibrating component and elastic mechanism's cooperation in this process, make the screen cylinder drive the screen cloth vibration, can shake the aggregate that blocks up from the sieve mesh in, the harmful effect that the sieve mesh caused by large tracts of land blocking up is reduced, the utility model can utilize two screens to sieve in turn, when the screen cloth of one side sieves, can vibrate the clearance to the screen cloth that the opposite side does not use, do not need to interrupt screening work, be favorable to improving screening efficiency.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is an enlarged view at a in fig. 1;

FIG. 3 is a schematic side view of a motor, shaft and screen drum;

In the figure: 1. a base; 2. a spring; 3. a brace rod; 4. a sliding sleeve; 5. a second discharge hole; 6. a material guide plate; 7. a first discharge hole; 8. a screen; 9. a baffle; 10. a charging hopper; 11. a vibration member; 12. a door panel; 13. a screen drum; 14. a rotating shaft; 15. a flange; 16. a motor; 17. a locking bolt.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are provided below and the present utility model is further described with reference to the accompanying drawings.

Embodiment one:

Referring to fig. 1 to 3, the utility model provides a concrete aggregate screening device, which comprises a base 1, an elastic mechanism is arranged on the upper surface of the base 1, a screen drum 13 is arranged on the elastic mechanism, so that the screen drum 13 and the base 1 form elastic connection, the cross section of the inner cavity of the screen drum 13 is in a circular structure, a feeding hopper 10, a first discharge port 7 and a second discharge port 5 are respectively arranged at the top, the middle and the bottom of the left side of the screen drum 13, a vibrating part 11 is arranged on the screen drum 13, the vibrating part 11 is a vibrating motor, a rotating shaft 14 is rotatably arranged at the center of the screen drum 13 in a penetrating manner, two ends of the rotating shaft 14 are respectively and rotatably connected with the front side wall and the rear side wall of the screen drum 13, the end part of the rotating shaft 14 is connected with a motor 16, the rotating shaft 14 is connected with an output shaft of the motor 16, the motor 16 adopts a worm gear motor 16, the motor 16 has a self-locking function, the motor 16 is fixedly arranged on the rear side wall of the screen drum 13, two baffles 9 and two screens 8 are fixedly arranged on the rotating shaft 14, the screens 8 and 9 are in crisscross arrangement, and the outer edges of the screens 8 and 9 are close to the inner wall of the screen drum 13;

When screening, the motor 16 is utilized to drive the rotating shaft 14 to rotate in the screen cylinder 13, the rotating shaft 14 drives the screen 8 and the baffle 9 to synchronously rotate, so that the screen 8 on the left side is obliquely aligned with the bottom of the first discharge port 7, large-particle aggregates screened out roll out from the first discharge port 7, the baffle 9 on the upper side is positioned on the right side of the feeding hopper 10, the aggregates fed into the screen 8 on the left side can be prevented from falling on the screen 8 on the right side, the baffle 9 on the lower side is positioned on the right side of the second discharge port 5 on the left side, the screen cylinder 13 is separated into a left space and a right space by utilizing the two baffles 9, and the aggregates vibrated from the screen 8 on the right side are prevented from entering the space on the left side and being mixed into aggregates with small particle sizes; after the vibration part 11 is started, under the action of the elastic mechanism, the vibration part 11 drives the screen cylinder 13 and the screen 8 to vibrate, when aggregate is thrown on the screen 8 on the left side, aggregate with small particle diameter can pass through the screen 8 to be discharged from the discharge outlet II 5 on the left lower side, and aggregate with large particle diameter is blocked on the screen 8 and rolls downwards along the screen 8, and finally is discharged from the discharge outlet I7; through designing two screens 8 and two baffles 9 into crisscross structures, when the screen 8 of left side appears blockking up, motor 16 drives baffle 9 and screen 8 synchronous rotation 180 degrees through pivot 14, with left screen 8 turn to the right side and be in the state of inverting, along with screen drum 13 drive screen 8 vibration, can shake the aggregate that blocks up in the sieve mesh and fall, the harmful effects that the sieve mesh caused the screening effect by large tracts of land jam has been reduced, available two screens 8 sieve in turn, when screen 8 of left side sieves, can vibrate the clearance to screen 8 on the right side, do not need to interrupt screening work, be favorable to improving screening efficiency.

Specifically, the elastic mechanism comprises a supporting rod 3 fixedly arranged on two sides of the upper surface of the base 1 and a sliding sleeve 4 fixedly arranged on two sides of the screen drum 13, the sliding sleeve 4 is slidably sleeved on the supporting rod 3, a spring 2 is sleeved on the supporting rod 3, and the spring 2 is abutted between the bottom end of the sliding sleeve 4 and the upper surface of the base 1. The vibrating component 11 can drive the sliding sleeve 4 to compress the spring 2 through the screen cylinder 13, so that the sliding sleeve 4 slides back and forth on the sliding rod.

Specifically, two sides of the bottom of the screen cylinder 13 are provided with discharge ports II 5. The second discharge opening 5 on the left side is used for discharging aggregates with small undersize particle sizes, and the second discharge opening 5 on the right side is used for discharging larger aggregates which shake off, so that coarse and fine aggregates are prevented from being mixed together.

Specifically, a guide plate 6 is arranged at the bottom of the first discharge hole 7. Aggregate discharged from the first discharge port 7 flows to the outside of the screen cylinder 13 through the guide plate 6.

Specifically, the upper right side of the screen drum 13 is hinged with a door plate 12, a flange 15 is fixedly arranged on the door plate 12, and the flange 15 locks the door plate 12 on the screen drum 13 through a locking bolt 17. After the door plate 12 is unlocked from the screen drum 13 through the locking bolt 17, the door plate 12 is swung downwards to open, and the screen 8 on the right side can be knocked to perform manual deep cleaning.

Specifically, the mesh diameters of the two screens 8 are the same. Is suitable for sieving aggregate with the same particle size.

Embodiment two:

The difference from the first embodiment is that:

specifically, the mesh diameters of the two screens 8 are different. Aggregates with different particle diameters can be screened out.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (7)

1. A concrete aggregate screening plant, its characterized in that: the novel screening machine comprises a base, the upper surface of base is equipped with a screen drum through elastic mechanism, the inner chamber cross-section of screen drum personally submits circular structure, top, middle part and the bottom of screen drum one side are equipped with respectively and throw hopper, bin outlet one and bin outlet two, be equipped with vibrating component on the screen drum, the center department rotation of screen drum wears to be equipped with the pivot, pivot end connection has the motor, the motor is located on the screen drum, be equipped with two baffles and two screens in the pivot, screen cloth and baffle are crisscross setting of cross, the outward flange of screen cloth and baffle all is close to the screen drum inner wall.

2. A concrete aggregate screening device according to claim 1, wherein: the elastic mechanism comprises supporting rods arranged on two sides of the upper surface of the base and sliding sleeves arranged on two sides of the screen cylinder, the sliding sleeves are arranged on the supporting rods in a sliding sleeved mode, springs are sleeved on the supporting rods, and the springs are abutted between the bottom ends of the sliding sleeves and the upper surface of the base.

3. A concrete aggregate screening device according to claim 1, wherein: and two sides of the bottom of the screen cylinder are provided with discharge ports II.

4. A concrete aggregate screening device according to claim 1, wherein: and a material guide plate is arranged at the bottom of the material outlet.

5. A concrete aggregate screening device according to claim 4, wherein: the upper part of the screen cylinder is hinged with a door plate on one side far away from the feeding hopper, the door plate is provided with a flange, and the flange is locked on the screen cylinder through a locking bolt.

6. A concrete aggregate screening device according to any one of claims 1 to 5, wherein: the mesh diameters of the two screens are the same.

7. A concrete aggregate screening device according to any one of claims 1 to 5, wherein: the mesh diameters of the two screens are different.