A legume screening device

Abstract

The application provides a legume screening device, which comprises a support, a screening box body is installed on the support, and a first vibrating screen and a second vibrating screen are arranged in parallel on the inside of the screening box body; a connecting plate is installed on the inner wall of the screening box body above the first vibrating screen, an ear plate is arranged on the connecting plate, an installation ring connected with the ear plate is arranged on the connecting plate, a connecting end is connected with the installation ring, and a vibrating end is connected with the end face of the connecting end away from the installation ring. When the material is screened, the connecting end and the vibrating end are connected by a ring, rather than rigidly connected, so that the vibrating end can swing with multiple degrees of freedom under the action of the vibrating force. The swinging of the vibrating end generates an exciting force on the surface of the first vibrating screen, thereby preventing the material from being blocked on the screen, and effectively avoiding the static distribution of the material on the screen, so that the material is not accumulated.

Description

Technical Field

[0001] This utility model belongs to the technical field of screening devices, and specifically relates to a bean screening device. Background Technology

[0002] In the field of bean processing, vibrating screens are key process equipment, undertaking the important tasks of material screening and grading. During material screening, the efficiency and accuracy of the screening device directly affect product quality and overall production efficiency. Materials are conveyed to the screening device (vibrating screen) via a conveyor system. Under the action of vibration, beans of different sizes are separated through the mesh of the screen. Smaller particles fall through the screen into the collection area below, while larger particles remain on the screen surface and are discharged through the outlet.

[0003] However, in practical applications, in order to prevent the material from accumulating in a certain area due to uneven distribution on the screen surface, causing blockage of the screen and affecting product quality, it is necessary to implement certain measures.

[0004] Therefore, how to solve the defects in the above-mentioned technical solutions has become one of the urgent problems to be solved in the field of screening device technology. Utility Model Content

[0005] In view of the problems existing in the background art, the present invention provides a bean screening device, including a support frame, on which a screening box is installed. The screening box is provided with two sets of first and second vibrating screens arranged in parallel. A connecting plate is installed on the inner wall of the screening box above the first vibrating screen, and an ear plate is provided on the connecting plate. An installation ring connected to the ear plate is connected to a ring at the connecting end through the installation ring. A vibrating end is connected to the end face of the connecting end away from the installation ring.

[0006] Optionally, the end face of the vibrating end, which is away from the connecting end, abuts against the mesh surface of the first vibrating screen.

[0007] Optionally, both the first vibrating screen and the second vibrating screen include two layers of screen A and screen B arranged side by side, and a blocking screen plate is provided between screen A and screen B.

[0008] Optionally, both screen A and screen B are provided with screening holes, and the screening holes are arranged in multiple sets, with the screening holes on screen A and screen B arranged in parallel and corresponding to each other.

[0009] Optionally, elastic balls are provided in the screening holes on the screen B, and the diameter of the elastic balls is smaller than the aperture of the screening holes; the elastic balls in the screening holes on the front and rear sets of screens B are arranged crosswise.

[0010] Optionally, the elastic ball is a high-elasticity rubber ball;

[0011] Optionally, the arc-shaped end face of the blocking screen plate away from the screen B is in close contact with the bottom end face of the screen A.

[0012] Optionally, the blocking screen plate has multiple sets of through holes, and the diameter of the through holes is smaller than the sieving hole diameter of the screen A.

[0013] In summary, the beneficial effects of this utility model are:

[0014] This utility model has a simple structure. When screening materials, under the action of vibration, since the connecting end and the oscillating end are connected by a ring rather than a rigid fixed connection, the oscillating end can generate multi-degree-of-freedom swing under the action of vibration. The swing of the oscillating end generates excitation force on the first vibrating screen, thereby preventing the material from clogging on the screen and effectively avoiding the static distribution of material on the screen, which would lead to the accumulation of material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a bean screening device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the screening box in an embodiment of a bean screening device according to the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the structure at position A in the middle;

[0018] Figure 4 This is an exploded view of the vibrating screen of another embodiment of the bean screening device of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged view of the structure at position B in the middle.

[0020] Figure label:

[0021] 100. Bean screening device:

[0022] 10. Feed inlet;

[0023] 201. Screening box body; 202. First discharge port; 203. Second discharge port; 204. Transfer and storage port; 205. Third discharge port;

[0024] 30. Impurity removal fan;

[0025] 40. Vibrator;

[0026] 50. Bracket; 501. Reinforcing steel plate;

[0027] 60. Spring;

[0028] 701. First vibrating screen;

[0029] 702. Second vibrating screen; 7021. Screen A; 7022. Baffle plate; 7023. Screen B; 7024. Screening hole; 7025. Elastic ball;

[0030] 801. Connecting plate; 802. Mounting ring; 803. Connecting end; 508. Vibration end. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0032] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figure 1-5As shown, this embodiment provides a bean screening device 100, including a support 50, and a screening box 201 is installed on the support 50. The screening box 201 is provided with two sets of first vibrating screens 701 and second vibrating screens 702 arranged in parallel. Under the action of the vibrator, the material is initially screened through the first vibrating screen 701. At this time, beans of different diameters are screened by the first vibrating screen 701. The beans with smaller diameters fall into the second vibrating screen 702 below through the screening holes of the first vibrating screen 701. The beans left on the screen surface of the first vibrating screen 701 are discharged through the first discharge port 202.

[0035] After initial screening, beans of different diameters are screened a second time by the second vibrating screen 702. At this time, the beans with the smallest diameter fall into the screening box 201 in the lower area through the screening holes of the second vibrating screen 702, and fall into the third discharge port below through the transfer storage 204, and are discharged through the third discharge port 205. Beans with a diameter larger than the screening holes of the second vibrating screen 702 are retained on the screen surface of the second vibrating screen and discharged through the second discharge port 203, thereby realizing the screening of beans of different diameters.

[0036] In practical applications, to prevent uneven material distribution on the screen surface from causing material accumulation in certain areas, which increases the load on the screen surface in those areas and can lead to screen damage or even affect product quality, please refer to [link to relevant documentation]. Figure 2-5 As shown, a connecting plate 801 is installed on the inner wall of the screening box 201 located above the first vibrating screen 701 by means of welding or fastening screws, etc., and an ear plate is welded on the connecting plate 801. The mounting ring 802 is connected to the ear plate and is connected to the ring of the connecting end 803 through the mounting ring 802. The end face of the connecting end 803 away from the mounting ring 802 is connected to the vibrating end 804.

[0037] Furthermore, the end face of the oscillating end 804, which is away from the connecting end 803, abuts against the mesh surface of the first vibrating screen.

[0038] In this embodiment, those skilled in the art should understand that when screening materials, under the action of vibration, since the connecting end and the oscillating end are connected by a ring rather than a rigid fixed connection, the oscillating end can generate multi-degree-of-freedom swing under the action of vibration. The swing of the oscillating end generates excitation force on the first vibrating screen, thereby preventing the material from clogging on the screen and effectively avoiding the static distribution of material on the screen, which would lead to the accumulation of material.

[0039] Furthermore, both the first vibrating screen 701 and the second vibrating screen 702 include two layers of screen A and screen B arranged side by side, and a blocking screen plate 7022 is provided between the screen A and the screen B. The screen A, the screen B and the blocking screen plate 7022 are all provided with threaded holes and are connected by fastening bolts to form an integrated structure.

[0040] Furthermore, both screen A and screen B are provided with screening holes 7024. The screening holes 7024 are arranged in multiple groups and are arranged side by side on screen A and screen B.

[0041] In this embodiment, since the screening holes 7024 on the screen A and the screen B are arranged in parallel, it is beneficial for the material to pass through the screening holes of the two sets of screens A and the screen B arranged in parallel.

[0042] Furthermore, an elastic ball 7025 is provided inside the screening hole 7024 on the screen B7023. When a vibration force is generated, the elastic ball 7025 can bounce up and down inside the screening hole.

[0043] Furthermore, the elastic balls 7025 located in the screening holes 7024 on the front and rear sets of screens B7023 are arranged crosswise.

[0044] Furthermore, the elastic ball is made of highly elastic rubber.

[0045] In practical applications, in order to prevent the elastic ball from jumping out through the screening holes of the screen A and the screen B under the action of vibration, a blocking screen plate 7022 is provided between the two layers of screen A and screen B arranged side by side, and the cross section of the blocking screen plate 7022 is wavy, so that the elastic ball is blocked by the arc-shaped end face of the blocking screen plate 7022.

[0046] Furthermore, the arc-shaped end face of the blocking screen plate, which is away from the screen B, is in close contact with the bottom end face of the screen A.

[0047] Furthermore, in practical applications, in order for the beans to pass through screen A and the blocking screen plate and fall onto the screen B below, the blocking screen plate has multiple sets of through holes, and the diameter of the through holes is smaller than the sieving hole diameter of screen A.

[0048] In this embodiment, those skilled in the art should understand that by opening multiple sets of through holes in the blocking screen plate, the beans can pass through the screen A and the blocking screen plate and fall onto the screen B below.

[0049] Furthermore, since the diameter of the through hole is smaller than the sieve hole diameter of screen A, the beans can pass through the screen. In practical applications, the levelness of the vibrating screen is crucial to the uniform load on the screen. If the support is unbalanced or tilted, it will cause excessive pressure on a certain area of ​​the screen, which will cause the material to accumulate in a certain area of ​​the screen, resulting in excessive screen pressure in that area, thereby accelerating the wear of the screen surface.

[0050] The support 50 includes a support column, and a reinforcing steel plate 501 is welded between two adjacent sets of the support columns. A reinforcing mandrel is provided between the upper and lower sets of reinforcing steel plates 501. Multiple sets of reinforcing mandrels are provided, and three sets of reinforcing mandrels are combined to form a reinforcing steel frame, which is arranged in a triangular shape.

[0051] Furthermore, the reinforcing mandrel housing is made of stainless steel plate, and the internal cavity is filled with multiple sets of damping elements, which are arranged in a lattice structure to form a honeycomb sandwich. The damping elements are made of a high-damping, high-toughness material.

[0052] In this embodiment, those skilled in the art will understand that the overall stability can be effectively improved by forming a stable triangular structure with three sets of reinforcing mandrels. Furthermore, because the multiple sets of damping elements inside the reinforcing mandrels are arranged in a honeycomb sandwich structure through a lattice structure, a dense vibration energy absorption end face is formed. When vibration is transmitted to the mandrel, it can effectively absorb the vibration, reduce the impact force, and improve stability.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution 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 bean sieving device, characterized in that, The device includes a support frame, on which a screening box is mounted. Inside the screening box, two sets of first and second vibrating screens are arranged in parallel. A connecting plate is mounted on the inner wall of the screening box above the first vibrating screen. The connecting plate is provided with an ear plate and a mounting ring connected to the ear plate. The mounting ring is connected to a circular ring at the connecting end. A vibrating end is connected to the end face of the connecting end away from the mounting ring.

2. The bean screening device according to claim 1, characterized in that, The end face of the vibrating end, which is away from the connecting end, abuts against the mesh surface of the first vibrating screen.

3. The bean screening device according to claim 2, characterized in that, Both the first vibrating screen and the second vibrating screen include two layers of screen A and screen B arranged side by side, and a blocking screen plate is provided between screen A and screen B.

4. The bean screening device according to claim 3, characterized in that, Both screen A and screen B are provided with screening holes. The screening holes are arranged in multiple groups and are arranged side by side on screen A and screen B.

5. A bean sieving device according to claim 4, characterized in that, Elastic balls are installed inside the screening holes on the screen B, and the diameter of the elastic balls is smaller than the diameter of the screening holes; the elastic balls in the screening holes on the front and rear sets of screens B are arranged crosswise.

6. A bean sieving device according to claim 5, characterized in that, The elastic ball is made of highly elastic rubber.

7. A bean screening device according to claim 6, characterized in that, The arc-shaped end face of the blocking screen plate, which is away from the screen B, is in close contact with the bottom end face of the screen A.

8. A bean sieving device according to claim 7, characterized in that, The blocking screen plate has multiple sets of through holes, and the diameter of the through holes is smaller than the sieving hole diameter of the screen A.

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