Screening device with adjusting structure

Abstract

The utility model discloses a screening device with an adjusting structure, relates to the related field of screening devices, and aims to solve the problems of long screening time and low screening efficiency due to the fact that materials cannot be spread when the single screening amount is large in a flat plate type screening mode in the prior art, a small amount of materials can be used for multiple times when the materials are used each time. A cylindrical inner cavity is formed in the supporting shell and the protective cover, a discharging hopper is arranged at the lower end of the supporting shell, a first driving motor is installed on one side of the supporting shell, and the output shaft end of the first driving motor is connected with a rotating middle shaft; an inner screening assembly is arranged in the cylindrical inner cavity and composed of a first screening outer cover and a second screening outer cover, the first screening outer cover and the second screening outer cover are connected through a hinge, and a plurality of screening holes are formed in the first screening outer cover and the second screening outer cover. A screening cavity is formed in the first screening outer cover and the second screening outer cover.

Description

Technical Field

[0001] The utility model relates to the relevant field of screening devices, in particular to a screening device with an adjusting structure. Background Art

[0002] Screening is a method of separating particle groups according to their powder properties such as particle size, specific gravity, charge and magnetism. The operation of using a perforated sieve surface to separate mixed materials of different particle sizes into various particle size grades is called screening.

[0003] Screening operations can be divided into five categories according to their purpose:

[0004] (1) Independent screening, the purpose of which is to obtain a final product that meets user requirements;

[0005] (2) Auxiliary screening: This type of screening is mainly used in the crushing operation of the ore dressing plant, and plays an auxiliary role in the crushing operation. Generally, there are pre-screening and inspection screening.

[0006] Pre-screening refers to the screening of ore before it enters the crusher, using a screen to separate the qualified part from the ore for the crusher;

[0007] Inspection screening refers to the screening of ore after it has been crushed. Its purpose is to ensure that the final crushed ore product meets the particle size requirements of the grinding operation and to return the unqualified crushed ore product to the crushing operation;

[0008] (3) Preparatory screening, the purpose of which is to prepare for the next operation;

[0009] (4) Select screening. If the distribution of useful components in the material at different particle sizes is very different, screening and grading can be used to obtain particle sizes of different qualities and remove the low-quality particle sizes.

[0010] (5) Dehydration screening: the purpose of screening is to remove moisture from the material.

[0011] The flat-plate screening method cannot spread out the material when the single screening amount is large, so each time it is used, it needs to be screened in small quantities multiple times to complete the screening. The screening time is long and the screening efficiency is low. Utility Model Content

[0012] The purpose of the utility model is to provide a screening device with an adjustment structure to solve the problem that the flat plate screening method proposed in the above background technology cannot spread the material when the single screening amount is large, so that each time it is used, a small amount of multiple screenings are required to complete the screening, the screening time is long, and the screening efficiency is low.

[0013] To achieve the above object, the utility model provides the following technical solution: a screening device with an adjustment structure, comprising a supporting shell and a protective cover, the supporting shell is located at the lower end of the protective cover, and the supporting shell and the protective cover are connected by a hinge;

[0014] A cylindrical inner cavity is formed inside the support shell and the protective cover, and a lower hopper is provided at the lower end of the support shell, and the lower hopper is communicated with the inside of the cylindrical inner cavity;

[0015] A first drive motor is installed on one side of the support shell, a rotating intermediate shaft is connected to the output shaft end of the first drive motor, and a rotating ball is arranged at a connection position between the support shell and the protective cover and the rotating intermediate shaft;

[0016] An inner screening component is arranged inside the cylindrical inner cavity, and the inner screening component is composed of a first screening outer cover and a second screening outer cover, the first screening outer cover and the second screening outer cover are connected by a hinge, a plurality of screening holes are opened on the first screening outer cover and the second screening outer cover, and a screening cavity is formed inside the first screening outer cover and the second screening outer cover;

[0017] A fixed half ring is fixed in the middle of the upper ends of both side surfaces of the first screening outer cover, and the rotating middle shaft passes through the fixed half ring.

[0018] Preferably, a rotating half ring is fixed on the side of the first screening outer cover away from the first driving motor, the outside of the rotating half ring is connected to a fixing ring via a bearing, and the inner side surface of the fixing ring fits with the outer side surface of the second screening outer cover.

[0019] Preferably, connecting rods are fixed to the front and rear ends of the outer side of the fixing ring, the connecting rods pass through the side of the supporting shell and are jointly fixed with a connecting vertical plate, and a fixing frame is fixed to the outer side of the connecting vertical plate.

[0020] Preferably, a supporting transverse plate is fixed to the lower end of the other side of the supporting shell, a second driving motor is installed on the outer side of the lower end of the supporting transverse plate, and a rotating gear is installed on the upper end of the supporting transverse plate along the output shaft end of the second driving motor.

[0021] Preferably, both ends of the interior of the fixed frame are provided with internal teeth, and one end of the exterior of the rotating gear is provided with sector-shaped teeth, and the sector-shaped teeth are alternately meshed with the internal teeth at both ends.

[0022] Preferably, a horizontal limit groove is provided on the outer surface of the rotating intermediate shaft, and a limit block is integrally connected to a position corresponding to the horizontal limit groove inside the fixed semi-ring, and the limit block slides along the horizontal limit groove.

[0023] Preferably, support legs are welded and fixed to the lower ends of the front and rear ends of the support shell.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. In the utility model, the supporting shell and protective cover as well as the first screening cover and the second screening cover are opened, and the materials to be screened are placed in the screening chamber, and then the supporting shell and protective cover as well as the first screening cover and the second screening cover are closed; the first driving motor drives the rotating intermediate shaft to rotate, and the inner screening component is driven to rotate, and the materials follow the rotation in the inner screening component, and the materials smaller than the screening holes fall into the cylindrical inner cavity. Due to the rotary screening, more materials can be placed inside, and the outside of the materials is restricted as a whole, so that the screening work is not affected in the case of more materials, and the materials that can pass through the screening holes are less likely to stay inside the screening holes and not be screened out, thereby ensuring the screening efficiency, and solving the problem that the flat-plate screening method cannot spread the materials when the single screening amount is large, so that each use requires a small amount of multiple screenings to complete, the screening time is long, and the screening efficiency is not high.

[0026] 2. In the utility model, there is a limiting relationship between the horizontal limiting groove on the rotating intermediate shaft and the inner limiting block of the fixed half ring on the inner screening component, so that the fixed half ring on the inner screening component can slide horizontally outside the limiting groove on the rotating intermediate shaft; when the rotating intermediate shaft is driven, it can rotate synchronously with the inner screening component, so that the inner screening component can rotate and translate synchronously, realizing the rotation and material position adjustment functions.

[0027] 3. In the utility model, the fixed ring is connected to the rotating half ring bearing, so that the fixed ring can drive the rotating half ring to move back and forth without affecting the rotation of the rotating half ring, thereby assisting the superposition of the two motion states of translation and rotation of the inner screening component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of a screening device with an adjustment structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of a screening device with an adjustment structure of the utility model after removing the supporting shell and the protective cover;

[0030] Figure 3 This is a front view of a screening device with an adjustment structure according to the utility model;

[0031] Figure 4 It is a schematic diagram of the overall structure of a screening device with an adjustment structure of the utility model from another perspective;

[0032] Figure 5 It is a top view of a screening device with an adjustment structure of the utility model.

[0033] In the figure: 1. Support shell; 2. Protective cover; 3. Support leg; 4. Cylindrical inner cavity; 5. Lower hopper; 6. First drive motor; 7. Rotating intermediate shaft; 8. Horizontal limit groove; 9. Inner screening component; 10. First screening cover; 11. Second screening cover; 12. Screening hole; 13. Screening cavity; 14. Fixed half ring; 15. Limit block; 16. Rotating half ring; 17. Fixed ring; 18. Connecting rod; 19. Connecting vertical plate; 20. Fixed frame; 21. Inner gear; 22. Support horizontal plate; 23. Second drive motor; 24. Rotating gear; 25. Fan-shaped gear. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0035] See also Figure 1-5 The utility model provides an embodiment: a screening device with an adjustment structure, comprising a support shell 1 and a protective cover 2, the support shell 1 is located at the lower end of the protective cover 2, and the support shell 1 and the protective cover 2 are connected by a hinge, the lower ends of the front and rear ends of the support shell 1 are welded and fixed with support legs 3, the support shell 1 and the protective cover 2 form a cylindrical inner cavity 4, the lower end of the support shell 1 is provided with a lower hopper 5, and the lower hopper 5 is communicated with the inside of the cylindrical inner cavity 4;

[0036] A first drive motor 6 is installed on one side of the support housing 1, and a rotating intermediate shaft 7 is connected to the output shaft end of the first drive motor 6. A horizontal limit groove 8 is provided on the outer surface of the rotating intermediate shaft 7, and a rotating ball is provided at the connection position between the support housing 1 and the protective cover 2 and the rotating intermediate shaft 7;

[0037] An inner screening component 9 is arranged inside the cylindrical inner cavity 4. The inner screening component 9 is composed of a first screening outer cover 10 and a second screening outer cover 11. The first screening outer cover 10 and the second screening outer cover 11 are connected by a hinge. A plurality of screening holes 12 are provided on the first screening outer cover 10 and the second screening outer cover 11. A screening cavity 13 is formed inside the first screening outer cover 10 and the second screening outer cover 11.

[0038] A fixing page may be provided on one side of the supporting shell 1 and the protective cover 2 as well as the first screening outer cover 10 and the second screening outer cover 11, and a hole may be opened at the upper end, as shown in the figure, so that the supporting shell 1 and the protective cover 2 as well as the first screening outer cover 10 and the second screening outer cover 11 can be fixed by bolts; other quick-locking structures may also be provided, mainly so that the supporting shell 1 and the protective cover 2 as well as the first screening outer cover 10 and the second screening outer cover 11 can be connected separately, and are not limited to a specific fixing method.

[0039] A fixed semi-ring 14 is fixed in the middle of the upper ends of both side surfaces of the first screening outer cover 10, and the rotating intermediate shaft 7 passes through the fixed semi-ring 14. A limiting block 15 is integrally connected to the fixed semi-ring 14 at a position corresponding to the horizontal limiting groove 8. There is a limiting relationship between the horizontal limiting groove 8 on the rotating intermediate shaft 7 and the limiting block 15 inside the fixed semi-ring 14 on the inner screening component 9. The limiting block 15 slides along the horizontal limiting groove 8, and when the rotating intermediate shaft 7 is driven, it can rotate synchronously with the inner screening component 9, so that the inner screening component 9 can rotate and translate synchronously.

[0040] Furthermore, a rotating half ring 16 is fixed to the side of the first screening outer cover 10 away from the first drive motor 6, and a fixed ring 17 is connected to the outside of the rotating half ring 16 through a bearing, so that the fixed ring 17 does not affect the rotation of the rotating half ring 16 while being able to drive the rotating half ring 16 to move back and forth, thereby assisting the superposition of the two movement states of translation and rotation of the inner screening component 9; the inner side surface of the fixed ring 17 fits with the outer side surface of the second screening outer cover 11, and does not affect the opening and closing of the second screening outer cover 11.

[0041] Furthermore, connecting rods 18 are fixed to the front and rear ends of the outer side of the fixing ring 17, and the connecting rods 18 pass through the side of the supporting shell 1 and are jointly fixed with a connecting vertical plate 19, and a fixing frame 20 is fixed to the outer side of the connecting vertical plate 19, and both ends of the interior of the fixing frame 20 are provided with internal teeth 21; a supporting cross plate 22 is fixed to the lower end of the other side of the supporting shell 1, and a second driving motor 23 is installed on the outer side of the lower end of the supporting cross plate 22, and a rotating gear 24 is installed on the upper end of the supporting cross plate 22 along the output shaft end of the second driving motor 23, and a fan-shaped tooth portion 25 is provided at one end of the outer side of the rotating gear 24, and the fan-shaped tooth portion 25 is alternately meshed with the internal teeth 21 at both ends.

[0042] Working principle: open the supporting shell 1 and the protective cover 2 as well as the first screening cover 10 and the second screening cover 11, place the material to be screened in the screening chamber 13, then close the supporting shell 1 and the protective cover 2 as well as the first screening cover 10 and the second screening cover 11, and fix them with bolts or other structures.

[0043] The first driving motor 6 drives the rotating intermediate shaft 7 to rotate. Due to the connection between the horizontal limit groove 8 on the rotating intermediate shaft 7 and the inner limit block 15 of the fixed semi-ring 14 on the inner screening component 9, the inner screening component 9 is driven to rotate, and the material follows the rotation inside the inner screening component 9. The material smaller than the screening hole 12 falls into the cylindrical inner cavity 4 and is discharged through the discharge hopper 5.

[0044] During the screening process, the second drive motor 23 drives the rotating gear 24 to rotate. Since the fan-shaped tooth portion 25 on the rotating gear 24 is alternately meshed with the internal tooth portions 21 at both ends of the fixed frame 20, the fixed ring 17, the connecting rod 18 and the connecting vertical plate 19 are driven to move back and forth. Due to the bearing connection relationship between the fixed ring 17 and the rotating semi-ring 16, the fixed ring 17 does not affect the rotation of the rotating semi-ring 16 while being able to drive the rotating semi-ring 16 to move back and forth. The inner screening component 9 moves back and forth along the rotating intermediate shaft 7 in the cylindrical inner cavity 4, and the rotation state of the internal material is adjusted, so that the material will not be pressed against the inner walls of the first screening cover 10 and the second screening cover 11 due to centrifugal force, causing a decrease in screening efficiency.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A screening device with an adjustment structure, comprising a supporting shell (1) and a protective cover (2), wherein the supporting shell (1) is located at the lower end of the protective cover (2), and the supporting shell (1) and the protective cover (2) are connected by a hinge; characterized in that: A cylindrical inner cavity (4) is formed inside the support shell (1) and the protective cover (2); a lower hopper (5) is provided at the lower end of the support shell (1), and the lower hopper (5) is communicated with the inside of the cylindrical inner cavity (4); A first drive motor (6) is installed on one side of the support shell (1); an output shaft end of the first drive motor (6) is connected to a rotating intermediate shaft (7); and a rotating ball is provided at a connection position between the support shell (1) and the protective cover (2) and the rotating intermediate shaft (7); An inner screening component (9) is arranged inside the cylindrical inner cavity (4), and the inner screening component (9) is composed of a first screening outer cover (10) and a second screening outer cover (11), the first screening outer cover (10) and the second screening outer cover (11) are connected by a hinge, a plurality of screening holes (12) are provided on the first screening outer cover (10) and the second screening outer cover (11), and a screening cavity (13) is formed inside the first screening outer cover (10) and the second screening outer cover (11); A fixed half ring (14) is fixed in the middle of the upper ends of both side surfaces of the first screening outer cover (10), and the rotating intermediate shaft (7) passes through the fixed half ring (14).

2. A screening device with an adjustment structure according to claim 1, characterized in that: A rotating half ring (16) is fixed to the side of the first screening outer cover (10) away from the first drive motor (6), and the outside of the rotating half ring (16) is connected to a fixing ring (17) via a bearing, and the inner side surface of the fixing ring (17) is in contact with the outer side surface of the second screening outer cover (11).

3. A screening device with an adjustment structure according to claim 2, characterized in that: Connecting rods (18) are fixed to the front and rear ends of the outer side of the fixing ring (17); the connecting rods (18) pass through the side of the supporting shell (1) and are fixed to a connecting vertical plate (19); a fixing frame (20) is fixed to the outer side of the connecting vertical plate (19).

4. A screening device with an adjustment structure according to claim 3, characterized in that: A supporting transverse plate (22) is fixed to the lower end of the other side of the supporting shell (1), a second drive motor (23) is installed on the outer side of the lower end of the supporting transverse plate (22), and a rotating gear (24) is installed on the upper end of the supporting transverse plate (22) along the output shaft end of the second drive motor (23).

5. A screening device with an adjustment structure according to claim 4, characterized in that: Both ends of the interior of the fixed frame (20) are provided with internal teeth (21), and one end of the exterior of the rotating gear (24) is provided with a sector-shaped tooth portion (25), and the sector-shaped tooth portion (25) is alternately meshed with the internal teeth (21) at both ends.

6. The screening device with an adjustment structure according to claim 1, characterized in that: A horizontal limit groove (8) is provided on the outer surface of the rotating intermediate shaft (7), and a limit block (15) is integrally connected to a position corresponding to the horizontal limit groove (8) inside the fixed semi-ring (14), and the limit block (15) slides along the horizontal limit groove (8).

7. The screening device with an adjustment structure according to claim 1, characterized in that: Support legs (3) are welded and fixed to the lower ends of the front and rear ends of the support shell (1).

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