Scraper assembly of full-automatic centrifugal machine

Abstract

The utility model discloses a scraper component of a full-automatic centrifugal machine, which relates to the technical field of centrifugal machine components and comprises a base, a bottom plate arranged at the upper end of the base, a barrel arranged on the bottom plate, an annular part fixedly mounted at the bottom of the bottom plate, an inner annular plate arranged at the lower end of the bottom plate, and an outer annular plate arranged at the lower end of the inner annular plate. A plurality of vertical rods distributed in a circumferential array mode are fixedly installed on the inner annular plate, the upper ends of the vertical rods penetrate through the bottom plate and are fixedly connected to the bottom of the barrel, and an outer annular plate is rotatably connected to the outer portion of the inner annular plate. The movable strip can be driven to move along the guide rod, and the outer annular strip on the movable strip moves up and down and scrapes solid matter on the inner wall of the barrel. The outer annular strip can reciprocate up and down in the scraping process, so that the outer annular strip can fully cover the inner wall of the rotary drum, and the scraping efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge component technology, and in particular to a scraper assembly for a fully automatic centrifuge. Background Technology

[0002] The working principle of a fully automatic centrifuge is to use the centrifugal force generated by the high-speed rotation of the separating drum, combined with a separating filter screen, to separate the liquid and solid in the mixture. When the main unit starts and reaches a certain speed, the material enters the centrifugal drum through the feed pipe. Under the action of the centrifugal force field, the liquid flows out through the small holes on the screen wall, while the solid material remains on the screen to form a filter cake.

[0003] For example, the existing vertical centrifuge with publication number CN101966490A specifically discloses a base, a casing mounted on the base, a cover for covering the casing, a main shaft driven by a motor, and a rotating drum mounted on the main shaft. The rotating drum is located inside the casing and includes an inner rotating drum and an outer rotating drum located outside the inner rotating drum, sharing a drum base with the inner rotating drum. A cavity is formed between the outer wall of the inner rotating drum and the inner wall of the outer rotating drum. Filter holes communicating with the cavity are opened on the wall of the inner rotating drum, and filter bags for filtering contaminants into the cavity between the inner and outer rotating drums are provided in the filter holes. A washing liquid nozzle communicating with an external washing liquid pipe is provided inside the cavity of the inner rotating drum. This invention, using the above structure, can automatically unload materials.

[0004] After centrifugation, existing fully automatic centrifuges have a large amount of solid material adhering to the inner wall of the drum. It is difficult to separate the solid material from the inner wall of the drum. The accumulation of solid material on the inner wall of the drum will gradually reduce the inner diameter of the drum, thereby disrupting the equilibrium interface between the two liquid phases in the drum and resulting in poor separation effect. To address this, we propose a scraper assembly for a fully automatic centrifuge. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a scraper assembly for a fully automatic centrifuge, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a scraper assembly for a fully automatic centrifuge, comprising: a base, a bottom plate at the upper end of the base, a cylinder on the bottom plate, an annular component fixedly installed at the bottom of the bottom plate, the lower end of the annular component rotatably mounted on the base, an inner annular plate at the lower end of the bottom plate, a plurality of vertical rods arranged in a circumferential array fixedly installed on the inner annular plate, the upper ends of the vertical rods penetrating the bottom plate and fixedly connected to the bottom of the cylinder, an outer annular plate rotatably connected to the outer annular plate, and a plurality of electric push rods arranged in a circumferential array fixedly installed on the base, the output ends of the electric push rods being fixedly connected to the outer annular plate.

[0007] A liquid inlet pipe runs through the base, and the upper end of the liquid inlet pipe is rotatably mounted on the base plate and communicates with the cylinder body. A liquid drain pipe is connected to and fixedly installed at the bottom of the cylinder body. A movable strip is provided inside the cylinder body, and two spaced guide rods run through the movable strip. The upper ends of the guide rods are fixedly connected to the cylinder body. An inner annular strip is fixedly installed on the outer side of the movable strip, and an outer annular strip is rotatably installed on the outer side of the inner annular strip. An adjustment mechanism is provided inside the cylinder body, and the adjustment mechanism is connected to the movable strip and is used to adjust the position of the outer annular strip.

[0008] As a further technical solution of this utility model, the adjustment mechanism includes a support block, which is fixedly installed in the cylinder. A screw is rotatably mounted through the support block, and the lower end of the screw passes through a movable strip and is threadedly connected to the movable strip.

[0009] As a further technical solution of this utility model, a drive shaft is rotatably mounted on the drain pipe, and meshing bevel gears are fixedly mounted on the opposite ends of the drive shaft and the screw.

[0010] As a further technical solution of this utility model, a turntable is fixedly installed at the outer end of the drive shaft.

[0011] As a further technical solution of this utility model, a plurality of electromagnets arranged in a circular array are fixedly installed on the inner annular strip, and a plurality of iron blocks are fixedly installed on the inner side of the outer annular strip. The electromagnets are respectively arranged opposite to the iron blocks, and an elastic element is fixedly connected between the electromagnets and the iron blocks.

[0012] As a further technical solution of this utility model, the outer annular strip is provided with a plurality of scraping teeth arranged in a circumferential array on its outer side.

[0013] This utility model provides a scraper assembly for a fully automatic centrifuge, which has the following advantages compared with the prior art:

[0014] 1. This design relates to a scraper assembly for a fully automatic centrifuge. By rotating a drive shaft, two bevel gears drive a screw to rotate, which in turn moves a movable strip along a guide rod. The outer annular strip on the movable strip moves up and down, scraping away solid material from the inner wall of the drum. The outer annular strip reciprocates during scraping, allowing it to more fully cover the inner wall of the drum and improve scraping efficiency.

[0015] 2. The scraper assembly of a fully automatic centrifuge designed in this paper uses an electromagnet to generate an attraction force on an iron block. The outer ring bar rotates at a certain angle, and the scraping teeth on the outer ring bar scrape off the solid material attached to the inner wall of the cylinder during the rotation. When the electromagnet is de-energized, the elastic force of the elastic element drives the outer ring bar to reset, and the scraping teeth scrape the inner wall of the cylinder in the opposite direction. The electromagnet is intermittently energized, which can repeatedly scrape the inner wall of the cylinder. This design can effectively remove the material attached to the inner wall of the cylinder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the scraper assembly of a fully automatic centrifuge;

[0017] Figure 2 A side view of the scraper assembly of a fully automated centrifuge;

[0018] Figure 3 This is an enlarged cross-sectional view of a portion of the structure of the scraper assembly of a fully automatic centrifuge.

[0019] Figure 4 For a scraper assembly of a fully automatic centrifuge Figure 3 Enlarged diagram of point A in the diagram;

[0020] Figure 5 This is a schematic diagram of the planar structure of the inner and outer annular bars of the scraper assembly of a fully automatic centrifuge.

[0021] In the diagram: 1. Base plate; 2. Cylinder; 3. Ring-shaped component; 4. Inner ring-shaped plate; 5. Vertical rod; 6. Outer ring-shaped plate; 7. Electric push rod; 8. Inlet pipe; 9. Drain pipe; 10. Movable bar; 11. Guide rod; 12. Inner ring-shaped bar; 13. Outer ring-shaped bar; 14. Support block; 15. Screw; 16. Drive shaft; 17. Bevel gear; 18. Electromagnet; 19. Iron block; 20. Elastic component; 21. Scraper tooth; 22. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution for a scraper assembly of a fully automatic centrifuge: A scraper assembly of a fully automatic centrifuge includes: a base 1, a base plate 2 at the upper end of the base 1, a cylinder 3 on the base plate 2, an annular component 4 fixedly installed at the bottom of the base plate 2, the lower end of the annular component 4 being rotatably installed on the base 1, an inner annular plate 5 at the lower end of the base plate 2, a plurality of vertical rods 6 arranged in a circular array fixedly installed on the inner annular plate 5, the upper ends of the vertical rods 6 penetrating the base plate 2 and fixedly connected to the bottom of the cylinder 3, an outer annular plate 7 rotatably connected to the outer annular plate 5, and a plurality of electric push rods 8 arranged in a circular array fixedly installed on the base 1, the output ends of the electric push rods 8 being fixedly connected to the outer annular plate 7. A liquid inlet pipe 9 passes through the base 1. The upper end of the liquid inlet pipe 9 is rotatably mounted on the base plate 2 and communicates with the cylinder 3. A drain pipe 10 is connected to and fixedly installed at the bottom of the cylinder 3. A movable strip 11 is provided inside the cylinder 3. Two spaced guide rods 12 pass through the movable strip 11. The upper ends of the guide rods 12 are fixedly connected to the cylinder 3. An inner annular strip 13 is fixedly installed on the outside of the movable strip 11. An outer annular strip 14 is rotatably installed on the outside of the inner annular strip 13. An adjustment mechanism is provided inside the cylinder 3. The adjustment mechanism is connected to the movable strip 11 and is used to adjust the position of the outer annular strip 14. The mixed solution is introduced into the cylinder 3 through the liquid inlet pipe 9. By driving the annular component 4 to rotate, the cylinder 3 rotates at high speed. Under the action of centrifugal force, the solid material accumulates on the inner wall of the cylinder 3, and the liquid material is discharged through the drain pipe 10.

[0024] The adjusting mechanism includes a support block 15, which is fixedly installed inside the cylinder 3. A screw 16 is rotatably mounted through the support block 15, and the lower end of the screw 16 passes through a movable strip 11 and is threadedly connected to the movable strip 11. A drive shaft 17 is rotatably mounted on the drain pipe 10, and meshing bevel gears 18 are fixedly mounted on the opposite ends of the drive shaft 17 and the screw 16. A turntable is fixedly mounted on the outer end of the drive shaft 17. A gear ring is fixedly mounted on the outer side of the annular component 4, and a motor is mounted on the base 1. A gear meshing with the gear ring is fixedly mounted on the output shaft of the motor. The motor drives the annular component 4 and the cylinder 3 to rotate at high speed and perform centrifugal operation. The mixed solution is introduced into the cylinder 3 through the inlet pipe 9. By driving the annular component 4 to rotate and driving the cylinder 3 to rotate at high speed, under the action of centrifugal force, the solid material accumulates on the inner wall of the cylinder 3, and the liquid material is discharged through the drain pipe 10. When it is necessary to clean the solid material adhering to the inner wall of the cylinder 3, by rotating the drive shaft 17, the screw 16 is driven to rotate through the two bevel gears 18, which can drive the movable bar 11 to move along the guide rod 12. The outer annular bar 14 on the movable bar 11 moves up and down and scrapes off the solid material on the inner wall of the cylinder 3.

[0025] Among them, such as Figure 4 and Figure 5As shown, multiple electromagnets 19 arranged in a circular array are fixedly installed on the inner annular bar 13, and multiple iron blocks 20 are fixedly installed on the inner side of the outer annular bar 14. The electromagnets 19 are respectively positioned opposite to the iron blocks 20, and an elastic element 21 is fixedly connected between the electromagnets 19 and the iron blocks 20. Multiple scraping teeth 22 arranged in a circular array are provided on the outer side of the outer annular bar 14. When the electromagnets 19 are energized, they generate an attraction force on the iron blocks 20, causing the iron blocks 20 to move towards the electromagnets 19. The elastic element 21 contracts, and the outer annular bar 14 rotates at a certain angle. During the rotation, the scraping teeth 22 on the outer annular bar 14 scrape off the solid material attached to the inner wall of the cylinder 3. When the electromagnets 19 are de-energized, the elastic force of the elastic element 21 drives the outer annular bar 14 to reset, and the scraping teeth 22 scrape the inner wall of the cylinder 3 in the opposite direction. The electromagnets 19 are intermittently energized, which can repeatedly scrape the inner wall of the cylinder 3. This design can effectively remove the material attached to the inner wall of the cylinder 3.

[0026] The working principle of this invention is as follows: A mixed solution is introduced into the cylinder 3 through the inlet pipe 9. This drives the annular component 4 to rotate, causing the cylinder 3 to rotate at high speed. Under centrifugal force, solid matter accumulates on the inner wall of the cylinder 3, while liquid matter is discharged through the drain pipe 10. When it is necessary to clean the solid matter adhering to the inner wall of the cylinder 3, the drive shaft 17 is rotated, which in turn drives the screw 16 to rotate via two bevel gears 18. This causes the movable strip 11 to move along the guide rod 12. The outer annular strip 14 on the movable strip 11 moves up and down, scraping away the solid matter from the inner wall of the cylinder 3. The outer annular strip 14 can reciprocate up and down during the scraping process, allowing it to more fully cover the inner wall of the drum and improve scraping efficiency.

[0027] When the electromagnet 19 is energized, it attracts the iron block 20, causing the iron block 20 to move toward the electromagnet 19. The elastic element 21 contracts, and the outer annular strip 14 rotates at a certain angle. During the rotation, the scraping teeth 22 on the outer annular strip 14 scrape off the solid material attached to the inner wall of the cylinder 3. When the electromagnet 19 is de-energized, the elastic force of the elastic element 21 drives the outer annular strip 14 to reset, and the scraping teeth 22 scrape the inner wall of the cylinder 3 in the opposite direction. The electromagnet 19 is intermittently energized, which can repeatedly scrape the inner wall of the cylinder 3. This design can effectively remove the material attached to the inner wall of the cylinder 3.

[0028] The electric push rod 8 drives the outer annular plate 7 to move upward, and the vertical rod 6 and the cylinder 3 move upward simultaneously. A gap is created between the lower end of the cylinder 3 and the bottom plate 2, which can discharge the solid material from the inner wall of the cylinder 3.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A scraper assembly for a fully automatic centrifuge, characterized in that, include: A base (1) is provided with a base plate (2) at the upper end of the base (1), and a cylindrical body (3) is provided on the base plate (2). A ring part (4) is fixedly installed at the bottom of the base plate (2). The lower end of the ring part (4) is rotatably installed on the base (1). An inner ring plate (5) is provided at the lower end of the base plate (2). Multiple vertical rods (6) arranged in a circular array are fixedly installed on the inner ring plate (5). The upper end of the vertical rod (6) passes through the base plate (2) and is fixedly connected to the bottom of the cylindrical body (3). An outer ring plate (7) is rotatably connected to the outer ring plate (5). Multiple electric push rods (8) arranged in a circular array are fixedly installed on the base (1). The output ends of the electric push rods (8) are all fixedly connected to the outer ring plate (7). A liquid inlet pipe (9) runs through the base (1). The upper end of the liquid inlet pipe (9) is rotatably mounted on the base plate (2) and communicates with the cylinder (3). A drain pipe (10) is fixedly installed at the bottom of the cylinder (3). A movable strip (11) is provided inside the cylinder (3). Two spaced guide rods (12) run through the movable strip (11). The upper end of the guide rods (12) is fixedly connected to the cylinder (3). An inner annular strip (13) is fixedly installed on the outside of the movable strip (11). An outer annular strip (14) is rotatably installed on the outside of the inner annular strip (13). An adjustment mechanism is provided inside the cylinder (3). The adjustment mechanism is connected to the movable strip (11) and is used to adjust the position of the outer annular strip (14).

2. The scraper assembly of a fully automatic centrifuge according to claim 1, characterized in that, The adjustment mechanism includes a support block (15), which is fixedly installed inside the cylinder (3). A screw (16) is rotatably mounted through the support block (15), and the lower end of the screw (16) passes through the movable strip (11) and is threadedly connected to the movable strip (11).

3. The scraper assembly of a fully automatic centrifuge according to claim 2, characterized in that, A drive shaft (17) is rotatably mounted on the drain pipe (10), and meshing bevel gears (18) are fixedly mounted on the opposite ends of the drive shaft (17) and the screw (16).

4. The scraper assembly of a fully automatic centrifuge according to claim 3, characterized in that, A turntable is fixedly installed at the outer end of the drive shaft (17).

5. The scraper assembly of a fully automatic centrifuge according to claim 4, characterized in that, Multiple electromagnets (19) arranged in a circular array are fixedly installed on the inner annular bar (13). Multiple iron blocks (20) are fixedly installed on the inner side of the outer annular bar (14). The electromagnets (19) are respectively arranged opposite to the iron blocks (20). An elastic element (21) is fixedly connected between the electromagnets (19) and the iron blocks (20).

6. The scraper assembly of a fully automatic centrifuge according to claim 5, characterized in that, The outer annular strip (14) has multiple scraping teeth (22) arranged in a circular array on its outer side.

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