CN210935811U - A grading vibrating screen - Google Patents

Abstract

The utility model discloses a grading vibrating screen, comprising a frame, a feeding hopper is arranged on the upper part of the frame, a screening device is arranged below the feeding hopper, and the screening device comprises a screen frame, a screen mesh, a vibrator, Sealing cylinder, motor and discharge port, the center of the screen frame is provided with a fixed rotating shaft, the screen frame is provided with a multi-layer screen, and the interior of the screen is a conical structure with high middle and low surrounding; the outer side of the screen frame is provided with There is a sealing cylinder, which is fixed on the frame by bolts and nuts; the grading vibrating screen not only realizes the function of screening the dry raw materials, but also realizes Screening of water-containing raw materials such as aquatic products; the grading and screening device realizes the rotation and vibration screening of the raw materials through the set vibrator, which not only improves the vibration and screening effect, improves the screening efficiency, but also simplifies the structure. , smaller in size and more convenient to use.

Description

A grading vibrating screen

technical field

The utility model relates to the field of grading vibrating screens, in particular to a grading vibrating screen.

Background technique

The vibrating screen works by using the reciprocating rotary vibration generated by the vibrator excitation. The upper rotating weight of the vibrator causes the screen surface to generate plane whirling vibration, while the lower rotating weight causes the screen surface to generate conical surface rotation vibration. Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and as an ellipse on the vertical plane. Adjusting the exciting force of the upper and lower rotating weights can change the amplitude. And adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen surface movement trajectory and change the movement trajectory of the material on the screen surface.

The existing grading vibrating screen usually can only sieve dry raw materials, and cannot well screen raw materials with water, especially aquatic products, such as fish, shrimp, shellfish, etc., which makes ordinary grading. The function of the vibrating screen is limited; at the same time, the structure of the existing grading vibrating screen is complex, the volume is large, and the screen mesh is inconvenient to replace, which makes it necessary to invent a new grading vibrating screen.

Utility model content

The purpose of this utility model is to provide a grading vibrating screen to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A grading vibrating screen includes a frame, a feeding hopper is arranged on the upper part of the frame, a screening device is arranged below the feeding hopper, and the screening device includes a screen frame, a screen, a vibrator, a sealing cylinder, a motor and The discharge port, the center of the screen frame is provided with a fixed rotating shaft, the screen frame is provided with a multi-layer screen, and the interior of the screen is a conical structure with high middle and low surrounding; The sealing cylinder is fixed on the frame by bolts and nuts; the outer side of the sealing cylinder and the position corresponding to each layer of screen mesh are respectively provided with discharge ports; the lower part of the screen frame is provided with a fixed seat, and the lower end of the fixed drum is provided with vibration The vibrator includes a fixed rotating drum, an active rotating head, a toggle head, a toggle tooth, a spring and a fixed sleeve. The lower end of the fixed rotating shaft is provided with a fixed rotating drum, and the fixed rotating drum is provided with a toggle tooth. A motor is arranged under the cylinder, the motor is vertically fixed on the fixed seat, the upper end of the motor is provided with an active rotor matched with the fixed rotating cylinder, the active rotor is welded on the motor shaft, and the outer side of the active rotor is provided with and dial. The movable tooth is matched with the toggle head; the outer side of the fixed drum is provided with a fixed sleeve, the fixed seat is provided with a mounting hole corresponding to the fixed sleeve, a bearing is arranged in the installation hole, and the fixed sleeve is welded in the bearing hole; There is a spring, and the spring is sleeved on the outside of the fixed drum.

As a further scheme of the present utility model: the feed hopper is fixed on the frame by bolts and nuts; the screen frame is a stainless steel frame structure; the center of the screen is fixed on the screen frame by bolts and nuts; The network ports decrease sequentially from top to bottom.

As a further scheme of the present utility model: the bottom layer of the screen frame is a sealing plate, and the sealing plate is made of rubber and plastic; the screen frame and the screen mesh are both circular; the inner diameter of the sealing cylinder is equal to the screen mesh The diameter of the discharge port is a rectangle with the same height as the screen, and a discharge door is arranged at the discharge port.

As a further solution of the present invention: the fixing seat is made of stainless steel, the fixing seat is a frame structure, and the fixing seat is fixed on the frame by bolts and nuts; the fixing drum is a cylindrical structure with an upper seal and an open bottom. ; The toggle teeth and the fixed rotating shaft are integrally formed, and the fixed teeth are of a helical structure; the toggle head is of a helical structure.

As a further solution of the present invention, the upper end of the spring is welded in the fixing sleeve, and the lower end of the spring is welded on the fixing drum.

Compared with the prior art, the beneficial effect of the present utility model is: the grading vibrating screen not only realizes the function of screening the dry raw materials, but also realizes Screening of water-containing raw materials such as aquatic products; the grading and screening device realizes the rotation and vibration screening of raw materials through the set vibrator, which not only improves the vibration and screening effect, improves the screening efficiency, but also simplifies the structure. , smaller in size and more convenient to use.

Description of drawings

Fig. 1 is a structural schematic diagram of a classification vibrating screen.

Figure 2 is a schematic structural diagram of a discharge port in a grading vibrating screen.

Figure 3 is a schematic structural diagram of a lower hopper in a grading vibrating screen.

Figure 4 is a schematic structural diagram of a screening device in a grading vibrating screen.

Figure 5 is a schematic structural diagram of a vibrator in a grading vibrating screen.

In the figure: frame 1, screening device 2, screen 3, screen frame 4, motor 5, feed hopper 6, discharge port 7, sealing cylinder 8, fixed shaft 9, lower hopper 10, fixed seat 11, vibration 12 , the active rotor 13 , the fixed rotor 14 , the toggle head 15 , the toggle teeth 16 , the spring 17 , and the fixed sleeve 18 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 3. In the embodiment of the present invention, a grading vibrating screen includes a frame 1. A feeding hopper 6 is arranged on the upper part of the frame 1, and the feeding hopper 6 is fixed on the frame 1 by bolts and nuts. On the top, the feeding hopper 6 is used to facilitate feeding; the lower part of the feeding hopper 6 is provided with a screening device 2, and the screening device 2 includes a screen frame 4, a screen 3, a vibrator 12, a sealing cylinder 8, a motor 5 and an outlet The material port 7, the screen frame 4 is a stainless steel frame structure, the center of the screen frame 4 is provided with a fixed rotating shaft 9, the screen frame 4 is provided with a multi-layer screen 3, and the interior of the screen 3 is a cone with a high middle and a low circumference. The purpose of this setting is to seal the raw materials and facilitate unloading; the center of the screen 3 is fixed on the screen frame 4 through bolts and nuts; the mesh openings of the screen 3 are sequentially reduced from top to bottom, so that The purpose of setting is to keep the larger size raw materials in the upper screen 3, and the smaller size raw materials in the lower screen 3, so as to realize the screening function of the raw materials; the bottom layer of the screen frame 4 is the sealing plate, and the sealing plate is Made of rubber and plastic, the sealing plate is used to seal the bottom of the screen frame 4 to prevent water from flowing out from the lower part; the screen frame 4 and the screen mesh 3 are both circular, and the purpose of this setting is to facilitate the realization of the rotary vibration of the raw materials. Screening, enhancing the screening effect and improving the screening efficiency; the outer side of the screen frame 4 is provided with a sealing cylinder 8, and the sealing cylinder 8 is fixed on the frame 1 through bolts and nuts; the inner diameter of the sealing cylinder 8 is equal to the size of the screen 3. Diameter, the purpose of this setting is to make the sealing cylinder 8 block the raw material to prevent the raw material from falling into the lower screen 3 through the edge of the screen 3; , the discharge port 7 is a rectangle with the same height as the screen 3, and the discharge port 7 is used to facilitate feeding; the discharge port 7 is provided with a discharge door, and the bottom of the discharge port 7 is provided with a feeding hopper 10; The unloading hopper 10 is used for unloading;

Please refer to FIG. 1 , FIG. 4 and FIG. 5 , in the embodiment of the present utility model, a fixing seat 11 is arranged below the screen frame 4 , the fixing seat 11 is made of stainless steel, the fixing seat 11 is a frame structure, and the fixing seat 11 is connected by bolts The nut is fixed on the frame 1; the lower end of the fixed drum 14 is provided with a vibrator 12, and the vibrator 12 includes a fixed drum 14, an active rotary head 13, a toggle head 15, a toggle tooth 16, a spring 17 and a fixed Sleeve 18, the lower end of the fixed rotating shaft 9 is provided with a fixed rotating drum 14, the fixed rotating drum 14 is a cylindrical structure with a sealed top and an open bottom, and a toggle tooth 16 is provided in the fixed drum 14. The toggle teeth 16 and The fixed rotating shaft 9 is an integrally formed structure, and the fixed teeth are of helical structure; a motor 5 is arranged below the fixed rotating drum 14, the electric motor 5 is vertically fixed on the fixed seat 11, and the upper end of the motor 5 is provided with a matching rotating drum 14. The active rotor 13, the active rotor 13 is welded on the rotating shaft of the motor 5, the outer side of the active rotor 13 is provided with a toggle head 15 which is matched with the toggle teeth 16, and the toggle head 15 is a spiral structure; the toggle head 15 and the toggle The movable teeth 16 are used to cooperate with each other to rotate to realize the cyclic vibration of the fixed drum 14; the outer side of the fixed drum 14 is provided with a fixed sleeve 18, and the fixed seat 11 is provided with an installation hole corresponding to the fixed sleeve 18, and the installation hole is provided with a Bearing, the fixed sleeve 18 is welded in the bearing hole; the fixed sleeve 18 is installed with a spring 17, the spring 17 is sleeved on the outer side of the fixed rotating drum 14, the upper end of the spring 17 is welded in the fixed sleeve 18, and the lower end of the spring 17 is welded on the fixed rotating drum. on the drum 14; the spring 17 and the fixing are used to overturn the screen frame 4, so as to realize the cyclic rotation and screening of the screen 3; the vibrator 12 is used to realize the vibration of the screen 3, so as to realize the raw material of sieving.

When in use, pour the raw materials to be screened into the feeding hopper 6, and then drive the active rotor 13 to rotate through the rotation of the motor 5, and the active rotor 13 rotates to drive the toggle head 15 to toggle the toggle in the fixed drum 14. The tooth 16, the toggle tooth 16 rotates, drives the fixed drum 14 to rotate, and realizes the up and down movement. The fixed drum 14 moves upward while rotating, and the fixed drum 14 is reset and reversed and buffered by the spring 17.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principle of the present utility model, any modifications, equivalent replacements, improvements, etc. made shall be included within the protection scope of the present utility model.

Claims (5)

1. The grading vibrating screen comprises a rack (1) and is characterized in that a feed hopper (6) is arranged at the upper part of the rack (1), a screening device (2) is arranged below the feed hopper (6), the screening device (2) comprises a screen frame (4), a screen (3), a vibrator (12), a sealing cylinder (8), a motor (5) and a discharge hole (7), a fixed rotating shaft (9) is arranged at the center of the screen frame (4), multiple layers of screen meshes (3) are arranged on the screen frame (4), and the inside of each screen mesh (3) is of a conical structure with a high middle part and a low periphery; a sealing cylinder (8) is arranged on the outer side of the screen frame (4), and the sealing cylinder (8) is fixed on the frame (1) through bolts and nuts; the outer side of the sealing cylinder (8) and the corresponding position of each layer of screen (3) are respectively provided with a discharge hole (7); a fixed seat (11) is arranged below the sieve frame (4), a vibrator (12) is arranged at the lower end of the fixed rotary drum (14), the vibrator (12) comprises the fixed rotary drum (14), a driving rotary head (13), a stirring head (15), stirring teeth (16), a spring (17) and a fixed sleeve (18), the fixed rotary drum (14) is arranged at the lower end of the fixed rotary shaft (9), the stirring teeth (16) are arranged in the fixed rotary drum (14), a motor (5) is arranged below the fixed rotary drum (14), the motor (5) is vertically fixed on the fixed seat (11), the driving rotary head (13) matched with the fixed rotary drum (14) is arranged at the upper end of the motor (5), the driving rotary head (13) is welded on the rotary shaft of the motor (5), and the stirring head (15) matched with the stirring teeth (16) is arranged on the outer side of the driving rotary head (13); a fixed sleeve (18) is arranged on the outer side of the fixed rotary drum (14), a mounting hole corresponding to the fixed sleeve (18) is formed in the fixed seat (11), a bearing is arranged in the mounting hole, and the fixed sleeve (18) is welded in the bearing hole; a spring (17) is arranged in the fixed sleeve (18), and the spring (17) is sleeved outside the fixed rotary drum (14).

2. A sizing shaker as claimed in claim 1, characterised in that said feed hopper (6) is fixed to the frame (1) by means of bolts and nuts; the sieve frame (4) is of a stainless steel frame structure; the center of the screen (3) is fixed on the screen frame (4) through bolts and nuts; the mesh openings of the screen mesh (3) are sequentially reduced from top to bottom.

3. A graded shaker as claimed in claim 1, characterised in that the lowermost layer of the frame (4) is a sealing plate of rubber or plastics material; the sieve frame (4) and the sieve mesh (3) are both circular; the inner diameter of the sealing cylinder (8) is equal to the diameter of the screen (3); the discharge port (7) is a rectangle with the same height as the screen (3), and a discharge door is arranged at the discharge port (7).

4. The grading vibrating screen according to claim 1, wherein the fixing seat (11) is made of stainless steel, the fixing seat (11) is of a frame structure, and the fixing seat (11) is fixed on the frame (1) through bolts and nuts; the fixed rotary drum (14) is of a cylindrical structure with a sealed upper surface and an opened lower surface; the poking teeth (16) and the fixed rotating shaft (9) are of an integrally formed structure, and the fixed teeth are of a spiral structure; the toggle head (15) is of a spiral structure.

5. A sizing shaker as claimed in claim 1, characterised in that the upper end of said spring (17) is welded inside a fixed sleeve (18) and the lower end of the spring (17) is welded on the fixed drum (14).

Images