A concrete production aggregate screening device

Abstract

This utility model provides a concrete aggregate screening device, comprising a screening component, a pair of guide plates, a feeding component, and a first motor. The screening component includes two opposing screening belts for screening aggregates. The pair of guide plates are positioned opposite each other and inclined at the bottom of the two screening belts. The feeding component is installed between the adjacent ends of the two screening belts and includes two sets of distribution plates for uniformly guiding material onto the two screening belts. The first motor is installed on one side of the feeding component and drives the two sets of distribution plates and the screening belts to rotate. This utility model solves the technical problem in existing screening devices where aggregates directly fall onto screens with large inclination angles, resulting in unsatisfactory filtration effects, by using a pair of screening belts in conjunction with a feeding component that can divert aggregate flow. This achieves the technical effect of improving the screening efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete processing and screening equipment, and in particular to a concrete production aggregate screening device. Background Technology

[0002] Aggregates are granular materials that serve as the skeleton and filler in concrete and mortar. Natural sand, such as river sand, sea sand, and valley sand, is generally used. When natural sand is unavailable, artificial sand made from ground hard rock can also be used. Different diameters of aggregate have different uses and effects, therefore, aggregate screening is necessary.

[0003] Generally, people use screening equipment to screen aggregates. For example, Chinese utility model patent with patent publication number CN221657132U discloses a coarse and fine aggregate screening device for concrete batching. This device has an outer shell with a filter screen installed at an angle inside the shell. The bottom of the filter screen is set to receive the small-diameter aggregates that are filtered out. The aggregates are fed to the top side of the filter screen through the feed port at the top of the shell. The aggregates pass through the filter screen by gravity, thus achieving screening.

[0004] However, when the above screening device is actually in operation, the aggregate in the feed inlet falls directly onto the filter screen. Because the filter screen is tilted at a large angle, some aggregate is discharged outside the device before it can be filtered, resulting in an unsatisfactory filtration effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a concrete aggregate screening device that solves the problem of unsatisfactory filtration effect caused by aggregates directly falling onto screens with large inclination angles in existing technologies.

[0006] According to an embodiment of the present invention, a concrete aggregate screening device includes a screening component, a pair of guide plates, a feeding component, and a first motor. The screening component includes two opposing screening belts for screening aggregates. The pair of guide plates are oppositely and inclinedly disposed at the bottom of the two screening belts. The feeding component is installed between the proximal ends of the two screening belts. The feeding component includes two sets of distribution plates for uniformly guiding materials onto the two screening belts. The first motor is installed on one side of the feeding component and is used to drive the two sets of distribution plates and the screening belts to rotate.

[0007] In the above embodiments, by setting a feeding component between the near ends of a pair of screening belts, and by using a dividing plate inside the feeding component to distribute the aggregate relatively evenly onto the two screening belts, the screening effect is ensured. Specifically, a first motor is driven, which drives the feeding component to feed the two screening belts. The screening belts are fed to one side and screened under the drive of the first motor. The material that passes through the screening belt falls onto the guide plate, while the material that does not pass through the screening belt is discharged to the outside of the device along with the screening belt. In summary, aggregate diversion screening is achieved, ensuring the screening effect.

[0008] In some embodiments, the screening component further includes two sets of first rotating shafts rotatably disposed within the two screening belts and rotating rollers fixedly sleeved on the outside of both ends of the first rotating shafts. A drive belt is rotatably sleeved on the outside of the rotating rollers in the same group and on the same side. The same side of the drive belt is fixedly connected to the end side of the screening belt near the end. Both ends of the two sets of first rotating shafts are provided with support plates connected to a pair of guide plates. A first belt is driven between the ends of the first rotating shafts in the same group. The first rotating shafts in different groups are connected to the first motor through the feeding component.

[0009] In some embodiments, the feeding component further includes a feeding trough fixedly connected to the support plate and two second rotating shafts rotatably installed inside the feeding trough. The two distributing plates are respectively located outside the two second rotating shafts, and the outer edge of the distributing plate is in contact with the inner wall of the feeding trough.

[0010] In some embodiments, a guide block is provided at the bottom center of the two sets of material distribution plates, which is in contact with the two screen belts, and the two ends of the guide block are fixedly connected to the inner wall of the feed trough.

[0011] In some embodiments, the output shaft of the first motor is fixedly connected to one end of any first rotating shaft, and the other ends of the two second rotating shafts are externally fixedly connected to meshing gears, and a second belt is driven between one end of the two second rotating shafts and the adjacent first rotating shaft.

[0012] In some embodiments, counterweights are rotatably provided on both sides of the feed trough, and several material-pulling rods are provided at the bottom of each of the two counterweights. The two counterweights are respectively adapted to the top of the two screen belts.

[0013] In some embodiments, a conveyor belt is provided at the bottom of one of the downward inclined ends of the pair of guide plates, and a second motor is installed on one side of the conveyor belt. The second motor is used to drive the conveyor belt to convey the filtered aggregate to one side.

[0014] Compared with the prior art, this utility model has the following beneficial effects: by using a pair of screen belts to feed aggregates by diverting the feed, it solves the technical problem in the existing screening device that the aggregates will directly fall onto the screen with a large inclination angle, resulting in unsatisfactory filtration effect, thereby achieving the technical effect of improving the screening effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the present utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the side cross-sectional structure;

[0018] Figure 4 for Figure 1 A schematic diagram of the frontal cross-sectional structure.

[0019] In the above figures: 100, screening component; 110, screening belt; 120, first rotating shaft; 130, rotating roller; 140, drive belt; 150, support plate; 160, first belt; 200, guide plate; 210, vibrating motor; 300, feeding component; 310, material distribution plate; 320, feeding chute; 330, second rotating shaft; 340, guide block; 400, first motor; 410, gear; 420, second belt; 500, counterweight; 510, material pusher; 600, conveyor belt; 610, second motor. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In an exemplary implementation, such as Figures 1-4As shown, this embodiment provides a concrete production aggregate screening device, including a screening component 100, a pair of guide plates 200, a feeding component 300, and a first motor 400. The screening component 100 includes two screen belts 110 arranged opposite each other for screening aggregates. The pair of guide plates 200 are arranged opposite each other and inclined at the bottom of the two screen belts 110. The feeding component 300 is installed between the near ends of the two screen belts 110. The feeding component 300 includes two sets of feeding plates 310 for uniformly guiding the material onto the two screen belts 110. The first motor 400 is installed on one side of the feeding component 300 and is used to drive the two sets of feeding plates 310 and the screen belts 110 to rotate.

[0023] In this embodiment, a feeding element 300 is provided between the near ends of a pair of screening belts 110, and the material distribution plate 310 inside the feeding element 300 is used to distribute the aggregate relatively evenly onto the two screening belts 110, thereby ensuring the screening effect. Specifically, a first motor 400 is driven, which drives the feeding element 300 to feed the two screening belts 110. Under the drive of the first motor 400, the screening belts 110 feed and screen to one side. The material that passes through the screening belts 110 falls onto the guide plate 200, and the material that does not pass through the screening belts 110 is discharged to the outside of the device with the screening belts 110. In summary, aggregate diversion screening is achieved, ensuring the screening effect.

[0024] In one embodiment, please refer to Figures 1-3 The screening component 100 also includes two sets of first rotating shafts 120 rotatably disposed within two screening belts 110 and rotating rollers 130 fixedly sleeved on the outside of both ends of the first rotating shafts 120. A drive belt 140 is rotatably sleeved on the outside of the rotating rollers 130 in the same group and on the same side. The same side of the drive belt 140 is fixedly connected to the end side of the screening belt 110. Both ends of the two sets of first rotating shafts 120 are provided with support plates 150 connected to a pair of guide plates 200. A first belt 160 is driven between the ends of the first rotating shafts 120 in the same group. The first rotating shafts 120 in different groups are connected to the first motor 400 through the feeding component 300.

[0025] In this embodiment, the first motor 400 drives two sets of first rotating shafts 120 to rotate through the feeding component 300. The two sets of first rotating shafts 120 are mutually driven by the first belt 160. At this time, the first rotating shaft 120 drives the drive belt 140 to rotate through the rotating roller 130. The drive belt 140 drives the screening belt 110 to rotate. There is no direct driving relationship between the screening belt 110 and the first rotating shaft 120.

[0026] Please refer to Figure 3 The bottom of the guide plate 200 is equipped with a vibrating motor 210 to enhance the screening effect.

[0027] In one embodiment, please refer to Figures 1-3The feeding component 300 also includes a feeding trough 320 fixedly connected to the support plate 150 and two second rotating shafts 330 rotatably installed inside the feeding trough 320. The two distribution plates 310 are respectively located outside the two second rotating shafts 330, and the outer edge of the distribution plate 310 is in contact with the inner wall of the feeding trough 320.

[0028] Among them, the bottom middle of the two-component material plates 310 is provided with a guide block 340 that contacts the two screen belts 110, and the two ends of the guide block 340 are fixedly connected to the inner wall of the feed trough 320.

[0029] Furthermore, the output shaft of the first motor 400 is fixedly connected to one end of any first rotating shaft 120, and the other ends of the two second rotating shafts 330 are externally fixedly connected to meshing gears 410. A second belt 420 is connected between one end of the two second rotating shafts 330 and the adjacent first rotating shaft 120 for transmission.

[0030] In this embodiment, the aggregate is placed into the feed trough 320, and the first motor 400 is started. The first motor 400 drives the second rotating shaft 330 to rotate. The two second rotating shafts 330 mesh with each other through gears 410 and rotate in opposite directions. At this time, the second rotating shafts 330 can make the two batching plates 310 rotate in opposite directions, so as to divert the aggregate to the two screening belts 110, thereby improving the screening effect.

[0031] In one embodiment, please refer to Figures 1-3 The feed trough 320 has counterweights 500 rotatably mounted on both sides. The bottom of each counterweight 500 is provided with several material-pulling rods 510. The two counterweights 500 are respectively matched with the top of the two screen belts 110.

[0032] In this embodiment, the counterweight 500 causes the material-pushing rod 510 to abut against the screening belt 110, which can move the aggregate and further improve the screening effect.

[0033] In one embodiment, please refer to Figures 1-4 A pair of guide plates 200 are inclined downwards and have a conveyor belt 600 at the bottom. A second motor 610 is installed on one side of the conveyor belt 600. The second motor 610 is used to drive the conveyor belt 600 to convey the filtered aggregate to one side.

[0034] In this embodiment, the second motor 610 can drive the conveyor belt 600 to transport the filtered aggregate to one side, thereby improving the discharge convenience of the device.

[0035] To better understand this utility model, the following is combined with... Figures 1 to 4The technical solution of this utility model is described in detail as follows: In use, the aggregate is placed into the feed trough 320, and the first motor 400 is started. The first motor 400 drives the second rotating shaft 330 to rotate. The two second rotating shafts 330 mesh with each other through gears 410 and rotate in opposite directions. At this time, the second rotating shafts 330 can cause the two sets of feeding plates 310 to rotate in opposite directions, thereby diverting the aggregate to the two screening belts 110. At the same time, the second rotating shafts 330 drive several first rotating shafts 120 to rotate through the second belt 420. The two sets of first rotating shafts 120 are mutually transmitted through the first belt 160. At this time, the first rotating shafts 120 drive the drive belt 140 to rotate through the rotating roller 130. The drive belt 140 drives the screening belt 110 to rotate. During this process, the aggregate that can pass through the screening belt 110 falls onto the guide plate 200, and the aggregate that does not pass through the screening belt 110 is discharged to the outside of the device with the screening belt 110.

[0036] In summary, this utility model solves the technical problem in existing screening devices where aggregates directly fall onto screens with large inclination angles, resulting in unsatisfactory filtration, by using a pair of screening belts 110 in conjunction with a feeding component 300 that can divert aggregate flow. This achieves the technical effect of improving screening efficiency.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A concrete aggregate screening device, characterized in that, include: A screening element comprising two opposing screen belts for screening aggregates; A pair of guide plates, the pair of guide plates being arranged opposite each other and at an angle at the bottom of the two screen belts; A feeding component is installed between the adjacent ends of the two screen belts, and the feeding component includes two sets of feeding plates for uniformly feeding materials onto the two screen belts; A first motor is mounted on one side of the feeder and is used to drive the two sets of material distribution plates and the screen belt to rotate.

2. The concrete production aggregate screening device as described in claim 1, characterized in that, The screening component further includes two sets of first rotating shafts rotatably disposed within the two screening belts and rotating rollers fixedly sleeved on the outside of both ends of the first rotating shafts. The rotating rollers in the same group and on the same side are rotatably sleeved with a drive belt. The same side of the drive belt is fixedly connected to the end side of the screening belt near the end. Both ends of the two sets of first rotating shafts are provided with support plates connected to a pair of guide plates. The ends of the first rotating shafts in the same group are connected by a first belt. The first rotating shafts in different groups are connected to the first motor through the feeding component.

3. The concrete aggregate screening device as described in claim 2, characterized in that, The feeding component also includes a feeding trough fixedly connected to the support plate and two second rotating shafts rotatably installed inside the feeding trough. The two distribution plates are respectively located outside the two second rotating shafts, and the outer edge of the distribution plate is in contact with the inner wall of the feeding trough.

4. The concrete production aggregate screening device as described in claim 3, characterized in that, The bottom of the two sets of material distribution plates is provided with a guide block that contacts the two screen belts, and the two ends of the guide block are fixedly connected to the inner wall of the feed trough.

5. The concrete production aggregate screening device as described in claim 3, characterized in that, The output shaft of the first motor is fixedly connected to one end of any first rotating shaft, and the other ends of the two second rotating shafts are externally fixedly connected to meshing gears. A second belt is connected between one end of the two second rotating shafts and the adjacent first rotating shaft for transmission.

6. The concrete production aggregate screening device as described in claim 3, characterized in that, Counterweights are rotatably mounted on both sides of the feed trough, and several material-pulling rods are provided at the bottom of each counterweight. The two counterweights are respectively adapted to the top of the two screen belts.

7. The concrete production aggregate screening device as described in claim 1, characterized in that, A conveyor belt is provided at the bottom of one of the downward inclined ends of the pair of guide plates. A second motor is installed on one side of the conveyor belt, and the second motor is used to drive the conveyor belt to convey the filtered aggregate to one side.

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