Circular vibrating screen classifier

Abstract

The utility model relates to the technical field of perlite ore sand processing, and discloses a circular vibration screening machine which comprises a protective shell, the protective shell is fixedly placed on the ground, shaking structures are symmetrically fixed in the protective shell, each shaking structure comprises a support, a movable frame, an eccentric column, an eccentric disc and a supporting block, and each eccentric disc is fixedly arranged at one end of the corresponding eccentric column; the eccentric column is rotationally arranged in the supporting block; the screening structure is fixedly arranged on one side of the supporting block and comprises a screening box, a primary screening plate and a secondary screening plate, the shaking structure is arranged, the screening box is driven to shake through an eccentric column, meanwhile, the screening box is shaken through an eccentric disc, and during shaking and shaking, a support and a movable frame conduct horizontal shaking buffering; the movable frame and the supporting blocks conduct vertical shaking buffering, the overall movement range of the screening box is enlarged, the vibration amplitude is enhanced, the overall stability of the device can be guaranteed by supporting the two sides of the screening box through the supports, and the device can stably screen materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of pearlite ore sand processing, in particular to a circular vibration screening machine. Background Art

[0002] The circular vibrating screen, whose vibrating track is elliptical, is a new type of screening equipment. It is specially designed for quarries, mineral processing plants and other scenes for screening various materials, including perlite ore sand.

[0003] The prior art discloses a circular vibrating screening machine (CN108273736B); it includes a screen box, a feeding mechanism, a motor, and a screen unit, the screen unit includes a first screen and a vibrating mechanism, the cross-section of the screen box along the vertical direction is trapezoidal, and a vibrating spring is provided in the screen box; a supplementary screen is provided below the first screen, a supporting spring is provided in the screen box, a limiting block is fixed on the side wall of the supplementary screen, and an electromagnet is fixed on the limiting block; the first screen is arranged at an angle, and reciprocating springs are provided at both upper and lower ends of the first screen; the feeding mechanism includes a hopper and a baffle, and the baffle is fixed below the hopper; the vibrating mechanism includes a toggle block and a cam, the cam is rotatably connected to the screen box, the motor is fixed on the screen box, a paddle is fixed on the cam, the toggle block is fixed on the first screen, and the paddle can toggle the toggle block to move.

[0004] After searching, it was found that the existing technology uses a cam and a toggle block to vibrate and screen the screen box, and the spring is set in the screen box. This design has the problem that the spring may be blocked by the material in the screen box when in use, and the toggle block has a small range of movement. This leads to a limitation in the range of motion in the screen box, and the amplitude of vibration and screening efficiency are affected by the spring and the toggle block, which is uncertain, making the device unstable. Furthermore, there are certain defects in the design of the screen box, and the feed port lacks protection measures against smoke and dust. During the screening process, the shaking of the material may produce fine particles, thereby generating dust. The smoke and dust leak over a large area, causing damage to the workers' respiratory tract.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problem of uncertain screening effect, the basic concept of the technical solution adopted by the utility model is:

[0007] A circular vibrating screening machine, comprising

[0008] A protective shell, the protective shell is fixedly placed on the ground;

[0009] The shaking structure is symmetrically fixed inside the protective housing. The shaking structure includes a bracket, a movable frame, an eccentric column, an eccentric disc, and a support block. The movable frame is movably arranged inside the bracket. The support block is movably arranged inside the movable frame. The eccentric disc is fixedly arranged at one end of the eccentric column. The eccentric column is rotatably arranged inside the support block.

[0010] The screening structure is fixedly arranged on one side of the support block. The screening structure includes a screening box, a primary screening plate, and a secondary screening plate. Both the primary screening plate and the secondary screening plate are fixedly arranged inside the screening box. The screening box is fixedly arranged on one side of the support block. The primary screening plate is fixedly arranged above the secondary screening plate.

[0011] As a preferred embodiment of the present invention, the protective housing is a square box structure. The top surface of the protective housing is fixedly connected with a feed pipe. One side of the protective housing is hinged with a box door through a hinge. An outlet is provided on one side of the protective housing. Two groups of clamping blocks are symmetrically arranged inside the outlet. The box door, the feed pipe, and the outlet are respectively located on adjacent sides of each other. The clamping block is composed of two blocks of different sizes. The blocks are fixedly connected to the inner side of the outlet.

[0012] As a preferred embodiment of the present invention, two groups of shaking structures are symmetrically arranged inside the protective housing. Both of the two brackets are fixedly connected to the inner bottom surface of the protective housing. The same screening structure is movably arranged between the two shaking structures.

[0013] As a preferred embodiment of the present invention, the screening box is a parallelogram box body. The screening box is located directly below the feed pipe. The shapes of the primary screening plate and the secondary screening plate are similar. Both the primary screening plate and the secondary screening plate are fixedly arranged in the middle of the interior of the screening box.

[0014] As a preferred embodiment of the present invention, one support block is fixedly connected to each side of the screening box. Rotating cavities are respectively provided inside the two support blocks and the interior of the screening box. The eccentric column is rotatably connected inside the rotating cavity. A motor is fixedly arranged on one side of one of the support blocks away from the screening box. The output end of the motor is connected to one end of the eccentric column. The other end of the eccentric column is fixedly connected with the eccentric disc. The eccentric disc is located on one side of the other support block. The eccentric disc and the motor are symmetrically arranged.

[0015] As a preferred embodiment of the present invention, two through cavities are symmetrically opened inside the support block. The two through cavities are respectively located on both sides of the rotating cavity. Two support columns are symmetrically fixed inside the movable frame. The support columns slide inside the through cavities. Four buffer springs are fixedly arranged between the inner wall surface of the movable frame and the support block. The four buffer springs respectively correspond to the two ends of the two support columns. The movable frame is elastically connected to the support block through the buffer springs.

[0016] As a preferred embodiment of the present utility model, four sliding holes are symmetrically formed in the bracket. Two sliding columns are respectively fixedly connected to the two outer sides of the movable frame. The sliding columns correspond to the sliding holes. Four abutting springs are fixedly arranged between the movable frame and the bracket. The four abutting springs respectively correspond to the four sliding columns. The bracket is elastically connected to the movable frame through the abutting springs.

[0017] The present utility model has the following beneficial effects compared with the prior art:

[0018] 1. By providing a protective housing and a screening box, the feed pipe is arranged directly above the screening box. The collection box is placed by using the clamping block. The motor is opened or closed by setting the box door. The shaking structure and the screening box are placed in the protective housing. During the screening process of the material, the dust is effectively blocked, avoiding damage to the respiratory tract of workers caused by dust flying.

[0019] 2. By providing a shaking structure, the eccentric column is used to drive the screening box to shake, and at the same time, the eccentric disc is used to shake the screening box. While shaking and swaying, the bracket and the movable frame perform horizontal shaking buffering, and the movable frame and the supporting block perform vertical shaking buffering. This not only increases the overall movement range of the screening box and strengthens the amplitude of the vibration, but also ensures the stability of the whole device by using the bracket to support the screening box on both sides, enabling the device to stably screen the material.

[0020] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings:

[0022] Figure 1 is the overall schematic diagram of the present utility model;

[0023] Figure 2 is the schematic diagram of the internal screening structure of the present utility model;

[0024] Figure 3 is the schematic diagram of the transverse section of the present utility model;

[0025] Figure 4 is the schematic diagram of the longitudinal section of the present utility model;

[0026] Figure 5 is the disassembled schematic diagram of the screening structure and the shaking structure of the present utility model.

[0027] In the figure: 10, protective housing; 11, box door; 12, feed pipe; 13, discharge port; 14, clamping block; 15, screening box; 16, bracket; 17, motor; 18, movable frame; 19, primary screening plate; 20, secondary screening plate; 21, eccentric column; 22, sliding hole; 23, sliding column; 24, abutting spring; 25, buffer spring; 26, support column; 27, eccentric disk; 28, support block; 29, rotating cavity; 30, through cavity. Detailed implementation mode

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0029] A circular vibrating screening machine, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, includes a protective housing 10 which is fixedly placed on the ground; a shaking structure symmetrically fixed inside the protective housing 10, the shaking structure includes a bracket 16, a movable frame 18, an eccentric column 21, an eccentric disk 27 and a support block 28, the movable frame 18 is movably arranged inside the bracket 16, the support block 28 is movably arranged inside the movable frame 18, the eccentric disk 27 is fixedly arranged at one end of the eccentric column 21, and the eccentric column 21 is rotatably arranged inside the support block 28; a screening structure fixedly arranged on one side of the support block 28, the screening structure includes a screening box 15, a primary screening plate 19 and a secondary screening plate 20, both the primary screening plate 19 and the secondary screening plate 20 are fixedly arranged inside the screening box 15, the screening box 15 is fixedly arranged on one side of the support block 28, and the primary screening plate 19 is fixedly arranged above the secondary screening plate 20; as Figure 1 shown, the protective housing 10 is a square box structure, the top surface of the protective housing 10 is fixedly connected with a feed pipe 12, one side of the protective housing 10 is hinged with a box door 11 through a hinge, one side of the protective housing 10 is provided with a discharge port 13, two groups of clamping blocks 14 are symmetrically arranged inside the discharge port 13, the box door 11, the feed pipe 12 and the discharge port 13 are respectively located on adjacent sides of each other, and the clamping block 14 is composed of two square blocks of different sizes, and the square blocks are fixedly connected to the inner side of the discharge port 13; as Figure 2 shown, two groups of shaking structures are symmetrically arranged inside the protective housing 10, both two brackets 16 are fixedly connected to the inner bottom surface of the protective housing 10, and the same screening structure is movably arranged between the two shaking structures.

[0030] The working principle is as follows. The device sets a protective shell 10 and a screening box 15, sets the feed pipe 12 just above the screening box 15, so that the material enters the screening box 15 directly from the feed pipe 12, and uses the block 14 to place the collection box. By setting the box door 11, the start and close of the shaking structure can be flexibly controlled, and the shaking structure and the screening box 15 are placed in the protective shell 10. In the process of screening the materials, smoke and dust are effectively blocked to prevent dust from damaging the workers' respiratory tract; by setting the shaking structure, the eccentric column 21 is used to drive the screening box 15 to shake, and the eccentric disk 27 is used to shake the screening box. The bracket 16 and the movable frame 18 cooperate to perform horizontal shaking buffering, and the movable frame 18 cooperates with the support block 28 to perform up and down shaking buffering, which not only increases the overall motion range of the screening box 15 and strengthens the amplitude of vibration, but also uses the bracket 16 to support the screening box 15 on both sides to ensure the overall stability of the device, so that the device can stably screen materials.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the screening box 15 is a parallelogram box body, and the screening box 15 is located directly below the feed pipe 12. The primary screening plate 19 and the secondary screening plate 20 are similar in shape, and the primary screening plate 19 and the secondary screening plate 20 are fixedly arranged in the middle of the interior of the screening box 15; Figure 4 and Figure 5 As shown, a support block 28 is fixedly connected to each side of the screening box 15, and a rotating cavity 29 is provided inside the two support blocks 28 and the screening box 15. The eccentric column 21 is rotatably connected in the rotating cavity 29. A motor 17 is fixedly provided on one side of one of the support blocks 28 away from the screening box 15, and the output end of the motor 17 is connected to one end of the eccentric column 21. The other end of the eccentric column 21 is fixedly connected to an eccentric disk 27, which is located on one side of the other support block 28. The eccentric disk 27 is symmetrically arranged with the motor 17; as shown Figure 5 As shown, two through cavities 30 are symmetrically provided inside the support block 28, and the two through cavities 30 are respectively located on both sides of the rotating cavity 29. Two pillars 26 are symmetrically fixed inside the movable frame 18, and the pillars 26 slide in the through cavities 30. Four buffer springs 25 are fixedly provided between the inner wall surface of the movable frame 18 and the support block 28, and the four buffer springs 25 correspond to the two ends of the two pillars 26, respectively. The movable frame 18 is elastically connected to the support block 28 through the buffer springs 25; Figure 2 and Figure 5 As shown, four sliding holes 22 are symmetrically opened in the bracket 16, and two sliding posts 23 are fixedly connected to the two outer side surfaces of the movable frame 18 respectively, and the sliding posts 23 correspond to the sliding holes 22. Four resistance springs 24 are fixedly arranged between the movable frame 18 and the bracket 16, and the four resistance springs 24 correspond to the four sliding posts 23 respectively. The bracket 16 is elastically connected to the movable frame 18 through the resistance springs 24.

[0032] The specific implementation method is as follows. When in use, open the box door 11 and start the motor 17. The motor 17 drives the rotation of the eccentric column 21 and the eccentric disc 27. The eccentric column 21 drives the entire screening structure to shake up and down. At this time, the support blocks 28 on both sides of the screening box 15 slide back and forth on the support column 26 through the through cavity 30 and squeeze the buffer spring 25 up and down. At the same time, the eccentric disc 27 is larger than the eccentric column 21, so the eccentric disc 27 drives the support blocks 28 and the movable frame 18 to shake left and right. At this time, the sliding columns 23 on both sides of the movable frame 18 slide back and forth in the sliding holes 22 of the support frame 16. At this time, the movable frame 18 squeezes the abutting spring 24 left and right to achieve horizontal shaking. Then, the collection boxes for collecting materials of different sizes are respectively clamped on the discharge port 13 and the clamping block 14. Then, pour the materials through the feed pipe 12. With the assistance of the shaking structure, the materials are preliminarily screened by the primary screening plate 19 and enter the secondary screening plate 20 for re-screening. Finally, the suitable materials stay at the bottom of the screening box 15 and then enter the collection box through the shaking and jittering of the shaking structure and are collected.

[0033] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A circular vibrating screen, characterized in that, including a protective housing (10) fixedly placed on the ground; a shaking structure symmetrically fixed inside the protective housing (10), the shaking structure including a bracket (16), a movable frame (18), an eccentric column (21), an eccentric disc (27) and a support block (28), the movable frame (18) being movably arranged inside the bracket (16), the support block (28) being movably arranged inside the movable frame (18), the eccentric disc (27) being fixedly arranged at one end of the eccentric column (21), and the eccentric column (21) being rotatably arranged inside the support block (28); a screening structure fixedly arranged on one side of the support block (28), the screening structure including a screening box (15), a primary screening plate (19) and a secondary screening plate (20), the primary screening plate (19) and the secondary screening plate (20) both being fixedly arranged inside the screening box (15), the screening box (15) being fixedly arranged on one side of the support block (28), and the primary screening plate (19) being fixedly arranged above the secondary screening plate (20).

2. The circular vibrating screen according to claim 1, characterized in that, The protective housing (10) is of a square box structure, a feed pipe (12) is fixedly connected to the top surface of the protective housing (10), a box door (11) is hinged to one side of the protective housing (10) through a hinge, a discharge port (13) is provided on one side of the protective housing (10), two groups of clamping blocks (14) are symmetrically arranged inside the discharge port (13), the box door (11), the feed pipe (12) and the discharge port (13) are respectively located on adjacent sides of each other, the clamping block (14) is composed of two square blocks of different sizes, and the square blocks are fixedly connected to the inner side of the discharge port (13).

3. A circular vibrating screen according to claim 2, characterized in that, Two groups of shaking structures are symmetrically arranged inside the protective housing (10), and both of the two brackets (16) are fixedly connected to the inner bottom surface of the protective housing (10), and the same screening structure is movably arranged between the two shaking structures.

4. A circular vibrating screen according to claim 3, characterized in that, The screening box (15) is of a parallelogram box body, the screening box (15) is located directly below the feed pipe (12), the primary screening plate (19) and the secondary screening plate (20) are similar in shape, and the primary screening plate (19) and the secondary screening plate (20) are both fixedly arranged in the middle of the inside of the screening box (15).

5. The circular vibrating screen according to claim 4, wherein One support block (28) is fixedly connected to each of the two sides of the screening box (15), a rotating cavity (29) is provided in both of the two support blocks (28) and the inside of the screening box (15), the eccentric column (21) is rotatably connected inside the rotating cavity (29), a motor (17) is fixedly arranged on one side of one of the support blocks (28) away from the screening box (15), the output end of the motor (17) is connected to one end of the eccentric column (21), the other end of the eccentric column (21) is fixedly connected to the eccentric disc (27), the eccentric disc (27) is located on one side of the other support block (28), and the eccentric disc (27) and the motor (17) are symmetrically arranged.

6. The circular vibrating screen machine according to claim 5, characterized in that, Two through cavities (30) are symmetrically formed inside the support block (28). The two through cavities (30) are respectively located on both sides of the rotation cavity (29). Two support columns (26) are symmetrically fixed inside the movable frame (18). The support columns (26) slide in the through cavities (30). Four buffer springs (25) are fixedly arranged between the inner wall surface of the movable frame (18) and the support block (28). The four buffer springs (25) respectively correspond to the two ends of the two support columns (26). The movable frame (18) is elastically connected to the support block (28) through the buffer springs (25).

7. A circular vibrating screen according to claim 6, wherein, Four sliding holes (22) are symmetrically formed inside the support frame (16). Two sliding columns (23) are respectively fixedly connected to the two outer side surfaces of the movable frame (18). The sliding columns (23) correspond to the sliding holes (22). Four abutment springs (24) are fixedly arranged between the movable frame (18) and the support frame (16). The four abutment springs (24) respectively correspond to the four sliding columns (23). The support frame (16) is elastically connected to the movable frame (18) through the abutment springs (24).

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