Aggregate screening device
By designing a aggregate screening device and using the combination of rotating mechanism and collection tank, the problem of difficult to efficiently screen large batches of stone in traditional construction site laboratories is solved, and the rapid and efficient screening of stone is achieved, which is suitable for highway engineering construction.
Patent Information
- Application Number
- CN202421540963.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the construction of highway projects, traditional construction site laboratories find it difficult to efficiently screen large quantities of stone, resulting in huge inspection workload and inefficient efficiency.
A aggregate screening device is designed, including a rotating mechanism and a collection groove. The rotating mechanism is composed of an inner drum, an outer drum and a plurality of screening drums of different diameters. The size of the screen hole gradually decreases from the inner drum to the outer drum, and the rapid screening of stone is achieved through synchronous rotation.
It realizes fast and efficient screening of stone, and is significantly more efficient in operation. It can handle large batches of stone, and is suitable for high-engineering and high-strength testing work.
Smart Images
Figure CN222919020U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-speed engineering, in particular to an aggregate screening device. Background Art
[0002] In the construction of highway projects, a large amount of sand and stone materials are often required. Traditional construction site laboratories usually use a concrete laboratory shaking sieve machine as a test device to screen and classify various samples of sand, stone, cement, etc. For example, in some large channel projects, the total amount of concrete is huge, and the workload of aggregate detection is huge. It is necessary to complete about 3,000 sets of screening tests for coarse and fine aggregates respectively within the detection period, with a total workload of about 6,000 sets. Therefore, a more efficient screening method is urgently needed to screen a large number of stones. Content of the Utility Model
[0003] In order to solve the technical problems existing in the prior art, the utility model provides an aggregate screening device, which can screen a large number of stones more efficiently.
[0004] An aggregate screening device of the utility model includes a bracket and a rotating mechanism arranged on the bracket; the rotating mechanism includes an inner drum and an outer drum sleeved coaxially with each other, and a feeding port is arranged at one end of the inner drum; a plurality of screening drums with different diameters are coaxially sleeved between the inner drum and the outer drum along the radial direction; screening holes are respectively arranged on the outer walls of the inner drum and each screening drum; wherein, the sizes of the screening holes gradually decrease from the inner drum to the outer drum.
[0005] According to the aggregate screening device of the utility model, the screening holes are respectively distributed circumferentially on the outer walls of the inner drum and the screening drums.
[0006] According to the aggregate screening device of the utility model, the rotating mechanism includes an annular sealing plate; the annular sealing plate is coaxially sleeved on the inner drum and closes the port of the outer drum at one end of the feeding port.
[0007] According to the aggregate screening device of the utility model, the inner drum, each screening drum and the outer drum respectively extend axially away from the feeding port to form a discharge port, and the extension lengths of the inner drum, each screening drum and the outer drum gradually decrease in the radial arrangement direction from the inner drum to the outer drum.
[0008] According to the aggregate screening device of the utility model, the discharge ports of the inner drum, each screening drum and the outer drum are all inclined downward at a certain angle.
[0009] An aggregate screening device according to the present utility model, wherein a plurality of collecting grooves are arranged in sequence on the bracket; the top openings of each of the collecting grooves are respectively located below the discharge ports of the inner drum, each of the sub-screening drums and the outer drum.
[0010] An aggregate screening device according to the present utility model, wherein inclined plates are respectively arranged at the bottoms of each of the collecting grooves; an output port is formed in the side wall of the collecting groove at the position corresponding to the bottom end of the inclined surface of the inclined plate.
[0011] An aggregate screening device according to the present utility model, wherein the inclined directions of the inclined plates at the bottoms of two adjacent collecting grooves are opposite to each other.
[0012] An aggregate screening device according to the present utility model, wherein the rotating mechanism further includes a transmission rod; the transmission rod is coaxially arranged inside the inner drum; a plurality of connecting rods distributed circumferentially are arranged on the outer wall of the transmission rod, and each of the connecting rods is respectively connected to the inner wall of the inner drum.
[0013] An aggregate screening device according to the present utility model, wherein the transmission rod penetrates through the inner drum and both ends are respectively hinged on the bracket.
[0014] As long as the inner drum, the outer drum and the sub-screening drums are controlled by the rotating mechanism to rotate synchronously in the aggregate screening device of the present utility model, and the stones inside are rolled together, the stones can be simply and quickly screened according to the particle size, and the operation is significantly more efficient, and a large number of stones can be screened more efficiently.
[0015] The stone screening device of the present utility model has the characteristics of simple structure, convenient operation and high screening efficiency, and is widely used in relevant tests of concrete projects. Drawing on the concepts of large stone quarries and some industrial probability screens, purchasing steel components and other plates, and cooperating with measures such as vibration motors, through the transformation and upgrading of the shaking screen machine, the transformation mainly includes adding screens with different particle sizes, modifying the discharge ports corresponding to the screens, and docking with the data automatic acquisition system to realize the integrated functions of screening, data acquisition, screening calculation and data uploading, so as to better meet the requirements of high engineering volume and high-intensity test work.
[0016] The stone screening device of the present utility model is conducive to realizing an intelligent and automatic screening device, without manual weighing. Drawing on the concepts of large stone quarries and industrial probability screens, combining screens with different particle sizes and matching the discharge ports of each particle size, and docking with the data automatic acquisition system to realize the integrated functions of screening, data acquisition, screening calculation and data uploading. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 is the overall structure diagram of the present utility model (front view direction);
[0019] Figure 2 is the side view of the present utility model;
[0020] Figure 3 is the three-dimensional view of the present utility model;
[0021] Figure 4 is Figure 3 the partial enlarged view of;
[0022] Figure 5 is the marking diagram of the sizes of each sieve hole;
[0023] Figure 6 is the three-dimensional view of the present utility model;
[0024] Figure 7 is the three-dimensional view of the present utility model;
[0025] Figure 8 is the schematic diagram of the sieve hole distribution areas of the inner drum, each sub-sieve drum and the outer drum in the present utility model;
[0026] Figure 9 is the cross-sectional view of the collection tank in the present utility model;
[0027] Figure 10 is the side view of the present utility model. Detailed implementation manners
[0028] The following will describe in detail the embodiments of the present utility model.
[0029] Such as Figures 1 to 10As shown in the figure, an aggregate screening device according to this embodiment includes a bracket 1 and a rotating mechanism mounted on the bracket 1. The rotating mechanism includes an inner drum 2 and an outer drum 3. The inner drum 2 is coaxially sleeved inside the outer drum 3. One end of the inner drum 2 is provided with a feeding port 4 for feeding stones. A plurality of screening drums 5 with different diameters are coaxially sleeved between the inner drum 2 and the outer drum 3. Each screening drum 5 is arranged along the radial direction of the outer drum 3. Sieve holes 6 are respectively machined on the outer walls of the inner drum 2 and each screening drum 5, that is, a plurality of sieve holes 6 are respectively opened on the outer walls of the inner drum 2 and each screening drum 5. Specifically, each sieve hole 6 is circumferentially distributed on the outer walls of the inner drum 2 and the screening drum 5. Among them, the size of each sieve hole 6 gradually decreases from the inner drum 2 to the outer drum 3. That is, the sieve holes 6 of the inner drum 2 are the largest, and the closer the sieve holes 6 on each layer of screening drum 5 are to the inner drum 2, the larger the hole diameter. In addition, as Figure 5 shown, the sizes of the sieve holes 6 opened on the inner drum 2 and each screening drum 5 are 26.5 mm, 19.0 mm, 16.0 mm, 9.5 mm, and 4.75 mm from the inside to the outside in sequence. When this embodiment is in use, the stones fed into the inner drum 2 from the feeding port 4 can pass through each layer of screening drum 5 layer by layer according to the volume size during the rotation of the drum. The smaller the particle size of the stones, the more likely they are to pass through the outer layer of screening drum 5. The larger the particle size of the stones, the more likely they are to be blocked inside the inner layer of screening drum 5. And the stones with the largest particle size are separated inside the inner drum 2 because they cannot pass through the sieve holes of the inner drum 2. Finally, the stones inside the outer drum 3 can be screened from large to small. In actual use, as long as the inner drum 2, the outer drum 3, and the screening drum 5 are controlled to rotate synchronously through the rotating mechanism on the bracket 1, and the internal stones are rolled together, the stones can be simply and quickly screened according to the particle size, and the operation is significantly more efficient, and a large number of stones can be screened more efficiently. Since each sieve hole 6 is circumferentially distributed on the outer walls of the inner drum 2 and the screening drum 5, it can be ensured that during the rotation of each drum, the stones can contact the sieve holes 6 more fully. And each drum is driven by a motor, realizing the integration of screening.
[0030] In one embodiment, the rotating mechanism includes an annular sealing plate 7. The annular sealing plate 7 is coaxially sleeved on the inner drum 2 and closes the port of the outer drum 3 at one end of the feeding port 4. Therefore, one port of the outer drum 3 and each screening drum 5 can be closed by the annular sealing plate 7 to ensure that only stones can be fed into the feeding port 4 of the inner drum 2 during the feeding process, and ensure that the fed stones can all enter the inside of the inner drum 2. Combined with Figure 1 and Figure 7As shown, the inner drum 2, each screening drum 5, and the outer drum 3 axially extend away from the feeding port 4 respectively, and discharge ports 8 are respectively formed at the respective extending ends. Moreover, the extending lengths of the inner drum 2, each screening drum 5, and the outer drum 3 gradually decrease in the radial arrangement direction from the inner drum 2 to the outer drum 3. That is, the extending length of the inner drum 2 is the longest, and for the screening drums 5 in the outer layers, the shorter their extending lengths are. The outer drum 3 is in the outermost layer, so the extending length of the outer drum 3 is the shortest. With this structure, the discharge ports 8 of the inner drum 2, each screening drum 5, and the outer drum 3 are staggered from each other. Furthermore, the discharge ports 8 of each screening drum 5 and the outer drum 3 are inclined downward at a certain angle, so that the stones can automatically slide along the inclined surface towards the discharge ports 8 during the rolling and screening process. Since the discharge ports 8 are already staggered from each other, the stones of different particle sizes screened out can be output externally in a staggered manner. Also, since a number of collecting grooves 9 are arranged on the bracket 1, and the top slots of each collecting groove 9 are respectively located below the discharge ports 8 of the inner drum 2, each screening drum 5, and the outer drum 3, the stones of different particle sizes output externally in a staggered manner can respectively fall into each collecting groove 9, so that the stones collected in different collecting grooves 9 have different particle sizes, and the screening operation is more efficient and convenient. Specifically, as Figure 8 shows a schematic diagram of the distribution area of the sieve holes 6 on the inner drum 2 and each screening drum 5. That is, after the inner drum 2 and each screening drum 5 extend outwards, the sieve holes 6 distributed on their outer walls are all located within the inner space of the outer drum 3 and do not exceed the inner cavity of the outer drum 3. And the parts of the inner drum 2 and each screening drum 5 that extend out of the outer drum 3 are provided with smooth inner walls 100 without sieve holes 6, to ensure that the screened stones can be completely output from the discharge ports 8. As Figure 9 shown, inclined plates 10 are respectively arranged at the bottoms of each collecting groove 9, and the side walls of the collecting groove 9 are provided with output ports 11 at the positions corresponding to the bottom ends of the inclined surfaces of the inclined plates 10. Therefore, the stones falling into the collecting groove 9 can be automatically conveyed along the inclined surfaces of the inclined plates 10 to the output ports 11, so as to facilitate the separate collection of the stones through the output ports 11, and also avoid the stones staying at the bottom of the collecting groove 9, enabling the screened stones to be automatically conveyed externally, and the use is more efficient and convenient. Combining Figure 1 、 Figure 6 and Figure 10As shown, the rotating mechanism further includes a transmission rod 12, which is coaxially installed inside the inner drum 2. A plurality of connecting rods 13 distributed circumferentially are welded to the outer wall of the transmission rod 12, and the outer ends of each connecting rod 13 are fixedly connected to the inner wall of the inner drum 2 respectively. Therefore, as long as the transmission rod 12 is driven to rotate, the inner drum 2 can be conveniently driven to rotate synchronously. In addition, connecting rods 13 are also connected between the inner drum 2 and the screening drum 5, between each screening drum 5, and between the outer drum 3 and the screening drum 5 respectively, so that the inner drum 2, each screening drum 5, and the outer drum 3 can rotate synchronously with the transmission rod 12. Specifically, the transmission rod 12 penetrates through the inner drum 2 and its two ends are respectively hinged on the bracket 1. And a transmission wheel 14 is coaxially sleeved at the end of the transmission rod 12. The transmission wheel 14 can be a belt. The transmission wheel 14 is connected to a motor (not shown in the figure) at the bottom of the bracket 1 through a transmission belt. Therefore, as long as the motor is started, the rotation of each drum can be finally driven to realize the screening work of the stone materials, which is convenient to operate and realizes the integration of screening.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; simple modifications or replacements still fall within the protection scope of this patent.
Claims
1. An aggregate screening device, characterized in that: The invention comprises a support (1) and a rotating mechanism arranged on the support (1); the rotating mechanism comprises an inner drum (2) and an outer drum (3) which are coaxially sleeved with each other, and a feeding port (4) is arranged at one end of the inner drum (2); a plurality of screening drums (5) with different diameters are coaxially sleeved between the inner drum (2) and the outer drum (3) along the radial direction; sieve holes (6) are arranged and distributed on the outer walls of the inner drum (2) and each of the screening drums (5); and the size of each of the sieve holes (6) gradually decreases from the inner drum (2) to the outer drum (3).
2. The aggregate screening device according to claim 1, characterized in that: The inner drum (2), each screening drum (5) and the outer drum (3) respectively extend axially in a direction away from the feeding port (4) to form a discharge port (8), and the extension lengths of the inner drum (2), each screening drum (5) and the outer drum (3) decrease step by step in a radial arrangement direction from the inner drum (2) to the outer drum (3).
3. The aggregate screening device according to claim 2, characterized in that: The discharge ports (8) of the inner drum (2), each screening drum (5) and the outer drum (3) are all inclined downward at a certain angle.
4. The aggregate screening device according to claim 2, characterized in that: A plurality of collecting troughs (9) are arranged on the support (1); the top notch of each collecting trough (9) is respectively located below the discharge port (8) of the inner drum (2), each screening drum (5) and the outer drum (3).
5. The aggregate screening device according to claim 4, characterized in that: The bottom of each of the collecting troughs (9) is provided with an inclined plate (10); the side wall of the collecting trough (9) is provided with an output port (11) at a position corresponding to the bottom end of the inclined surface of the inclined plate (10).