CN116060282A

CN116060282A - Screening machine is used in permanent magnet production

Info

Publication number: CN116060282A
Application number: CN202310186725.3A
Authority: CN
Inventors: 丁同梅
Original assignee: Jiangsu Pulong Magnetoelectric Co ltd
Current assignee: Jiangsu Pulong Magnetoelectric Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-05-05
Also published as: CN117181608A

Abstract

The invention discloses a screening machine for permanent magnet production, which relates to the related field of screening machines and comprises a screening tank, wherein a control panel is arranged on the end face of the outer side of the screening tank, an elevating screening mechanism is arranged on the inner side of the screening tank, the elevating screening mechanism comprises a material tank fixedly arranged on the inner side of the screening tank, arc plates are fixedly arranged on the inner side of the material tank in an annular array manner, the materials are screened in the process of elevating the materials by the arrangement of the elevating screening mechanism, particles with different sizes are screened from low to high by the inner wall of an elevating cavity, a plurality of particles with different sizes can be screened simultaneously, the particles with different sizes are separated, meanwhile, the screening area is increased by holes distributed on the inner wall of a vertical cavity, so that the screening efficiency is improved, meanwhile, secondary screening can be automatically performed in the particle discharging process, omission in the primary screening process is avoided, and the screening quality is improved.

Description

Screening machine is used in permanent magnet production

Technical Field

The invention relates to the related field of screening machines, in particular to a screening machine for permanent magnet production.

Background

The permanent magnet is required to screen raw material particles in the processing process, so that the magnet with good performance is obtained, excessive impurities are avoided, the performance of the permanent magnet is reduced, the raw material particles not only contain impurity particles with smaller sizes, but also contain raw material particles with larger sizes, certain difficulty is brought to the screening process, in the prior art, particles with different sizes are screened respectively through a screen in a powder screening device (CN 201910148976.6) for processing the NdFeB permanent magnet, the aperture of a horizontal plane screen is single, the raw material particles are piled above the screen, the screen is easily blocked, meanwhile, materials screened out on the screen are required to be cleaned frequently, and the screening efficiency is low.

Disclosure of Invention

The invention aims to provide a screening machine for producing permanent magnets, which solves the problems.

The technical aim of the invention is realized by the following technical scheme: the utility model provides a permanent magnet production is with screening machine, includes screening jar, screening jar outside terminal surface is equipped with control panel, screening jar inboard is equipped with the fortune screening mechanism, the fortune screening mechanism is including fixing to be located screening jar inboard material jar, the inboard annular array of material jar just is fixed to be equipped with the arc, the arc will the material jar inboard separates out the fortune chamber of equal size, every the fortune chamber is kept away from the arc inner wall of material jar axle center link up and is equipped with the hole, just the hole is divided into three aperture area that increases in proper order from the bottom side to the top side, the bottom side of fortune chamber is equipped with drive mechanism, the outside of material jar is equipped with ejection of compact screening mechanism, ejection of compact screening mechanism is including fixing to locate screening jar inner wall with two filter screens between the material jar inner wall, the filter screen is located respectively hole area juncture position on the fortune chamber, the aperture size of filter screen is unanimous with the aperture size in its bottom side adjacent hole area, just the filter screen with the position downward sloping that the screening jar is connected.

Preferably, the circumference of the bottom wall of the screening tank is inclined downwards.

Preferably, the lifting screening mechanism comprises a fixed plate fixedly arranged at the top of the lifting cavity, a first rotating shaft is rotatably arranged between the top wall and the bottom wall of the lifting cavity, and spiral blades are fixedly arranged on the first rotating shaft.

Preferably, the bottom of the material tank is annularly arrayed and fixedly provided with supporting legs.

Preferably, the transmission mechanism comprises a transmission cavity arranged in the bottom of the material tank, the bottom end of the first rotating shaft extends to the inside of the transmission cavity and is fixedly provided with a first gear, the center of the bottom wall of the transmission cavity is rotationally provided with a second rotating shaft, the second rotating shaft is fixedly provided with a second gear, and the second gear is meshed with each first gear.

Preferably, a first motor is fixedly arranged at the bottom of the material tank, and the tail end of a motor shaft of the first motor is fixedly connected with the second rotating shaft.

Preferably, the discharging and screening mechanism comprises three rotary drums which are rotationally arranged on the inner wall of the screening tank, the rotary drums are respectively positioned at positions close to the filter screen and the bottom wall of the screening tank, a push plate is uniformly and fixedly arranged at the bottom of the rotary drums, and the bottom of the push plate is close to the filter screen or the bottom wall of the screening tank.

Preferably, the top of push pedal is fixed and is equipped with the swivel becket, just be located on the screening jar inner wall and be close to the fixed box that is equipped with of position department of rotary drum, the notch has been seted up to the bottom side of fixed box, the rotary drum with the swivel becket passes the notch, the roof in the fixed box is fixed and is equipped with the second motor, the motor shaft end fixed mounting of second motor has the friction pulley, the friction pulley with swivel becket offsets tightly.

Preferably, the side wall of the screening tank is provided with three through holes, and the through holes are respectively positioned close to the filter screen or the bottom wall of the screening tank.

In summary, the invention has the following beneficial effects: through the setting of lift screening mechanism, carry out the screening to the in-process of spiral lift to the material, lift intracavity wall is from low to high not unidimensional granule of screening respectively, not only can sieve a plurality of size granule simultaneously for each size granule separation, the hole that distributes on the vertical cavity inner wall simultaneously makes screening area obtain improving, thereby improve screening efficiency, and effectively avoided the material to pile up the hole that leads to jam, the condition emergence that screening efficiency reduces, can carry out secondary screening simultaneously at granule exhaust in-process voluntarily, avoid omission in the primary screening process, improve screening quality.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of a screening tank according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the embodiment of the present invention at "A" in FIG. 2;

FIG. 4 is a schematic cross-sectional plan view of FIG. 2 in accordance with an embodiment of the invention;

FIG. 5 is an enlarged schematic view of the embodiment of the invention at "B" in FIG. 4;

FIG. 6 is a schematic top cross-sectional plan view of an embodiment of the present invention;

fig. 7 is an enlarged schematic view of the embodiment of the present invention at "C" in fig. 6.

In the figure: 11. a screening tank; 12. a control panel; 13. a material tank; 14. an arc-shaped plate; 15. a fixing plate; 16. a first rotating shaft; 17. a helical blade; 18. a transmission cavity; 19. a first gear; 20. a second rotating shaft; 21. a second gear; 22. a first motor; 23. a lifting cavity; 24. a filter screen; 25. a rotating drum; 26. a push plate; 27. a rotating ring; 28. a fixed box; 29. a notch; 30. a second motor; 31. a friction wheel; 32. a discharge port; 33. and (5) supporting legs.

Detailed Description

The utility model provides a screening machine for permanent magnet production, includes screening jar 11, screening jar 11 outside terminal surface is equipped with control panel 12, screening jar 11 inboard is equipped with the lift screening mechanism, the lift screening mechanism is including fixedly locating screening jar 11 inboard material jar 13, material jar 13 inboard annular array just is fixedly equipped with arc 14, arc 14 will the material jar 13 inboard separates out the lift chamber 23 of equidimension, every lift chamber 23 is kept away from the arc inner wall of material jar 13 axle center link up and is equipped with the hole, just the hole is divided into three aperture area that increases in proper order from the bottom side to the top side, the bottom side of lift chamber 23 is equipped with drive mechanism, the outside of material jar 13 is equipped with ejection of compact screening mechanism, ejection of compact screening mechanism is including fixedly locating screening jar 11 inner wall with two filter screens 24 between the material jar 13 inner wall, filter screen 24 is located respectively lift chamber 23 upper hole area position, 24's aperture size and the adjacent hole size of its bottom side are close to each other and the aperture size of filter screen 24 is followed by the filter screen 24 the slope is passed through to the filter screen 24 and is passed through to the ejection of compact granule is connected downward.

Advantageously, the circumference of the bottom wall of the screening tank 11 is inclined downwards.

Advantageously, the lifting screening mechanism comprises a fixing plate 15 fixedly arranged at the top of the lifting cavity 23, a first rotating shaft 16 is rotatably arranged between the top wall and the bottom wall of the lifting cavity 23, and a spiral blade 17 is fixedly arranged on the first rotating shaft 16.

Advantageously, the bottom of the material tank 13 is annularly arrayed and fixedly provided with feet 33.

Advantageously, the transmission mechanism comprises a transmission cavity 18 arranged in the bottom of the material tank 13, the bottom end of the first rotating shaft 16 extends into the transmission cavity 18 and is fixedly provided with a first gear 19, the center of the bottom wall of the transmission cavity 18 is rotatably provided with a second rotating shaft 20, the second rotating shaft 20 is fixedly provided with a second gear 21, and the second gear 21 is meshed with each first gear 19.

Advantageously, a first motor 22 is fixedly arranged at the bottom of the material tank 13, and the end of the motor shaft of the first motor 22 is fixedly connected with the second rotating shaft 20.

Advantageously, the discharging and screening mechanism comprises three rotary drums 25 rotatably arranged on the inner wall of the screening tank 11, the rotary drums 25 are respectively positioned close to the filter screen 24 and the bottom wall of the screening tank 11, a push plate 26 is uniformly and fixedly arranged at the bottom of the rotary drums 25, and the bottom of the push plate 26 is close to the filter screen 24 or the bottom wall of the screening tank 11.

Advantageously, the top end of the push plate 26 is fixedly provided with a rotating ring 27, a fixed box 28 is fixedly arranged on the inner wall of the screening tank 11 and positioned at a position close to the rotary drum 25, a notch 29 is formed in the bottom side of the fixed box 28, the rotary drum 25 and the rotating ring 27 penetrate through the notch 29, the top wall in the fixed box 28 is fixedly provided with a second motor 30, the tail end of a motor shaft of the second motor 30 is fixedly provided with a friction wheel 31, and the friction wheel 31 tightly abuts against the rotating ring 27.

Advantageously, the side wall of the screening tank 11 is provided with three discharge openings 32, and the discharge openings 32 are respectively located near the filter screen 24 or the bottom wall of the screening tank 11. The application method of the invention comprises the following steps:

the initial state is as follows: the friction wheel 31 is tightly propped against the rotating ring 27, the rotating ring 27 can be driven to rotate by friction force, and the three discharging holes 32 are respectively connected with the corresponding discharging conveyor belts or pipelines.

When the permanent magnet screening device is used, permanent magnet raw material particles are fed into the material tank 13, the first motor 22 is controlled to be started through the control panel 12, the first motor 22 drives the second rotating shaft 20 to rotate, the second rotating shaft 20 drives the second gear 21 to rotate, the first gear 19 drives the first rotating shaft 16 to rotate, the spiral blade 17 rotates, the spiral blade 17 drives the permanent magnet raw material particles to ascend in the lifting cavity 23, in the process of ascending the permanent magnet raw material particles, small-size particles can enter the bottom of the inner side of the screening tank 11 through holes in the bottom area of the lifting cavity 23, the permanent magnet raw material with the required middle size can enter the screening tank 11 through holes in the middle area of the lifting cavity 23, and is positioned on the filter screen 24 on the bottom side, large-size particles can enter the screening tank 11 through holes in the bottom area of the lifting cavity 23, and on the filter screen 24 on the top side, the particles which do not enter the top of the lifting cavity 23 then enter the material tank 13 through gaps on the top side of the arc plate 14, the screening efficiency is improved through the lifting mode, the screening size is improved, and the screening size is adapted to the size of the raw material is improved.

Then the second motor 30 is controlled to be started through the control panel 12, the second motor 30 drives the friction wheel 31 to rotate, the friction wheel 31 drives the rotating ring 27 to rotate through friction force, so that the rotary drum 25 rotates, the push plate 26 is driven by the rotary drum 25 to rotate, the particles screened between the screening tank 11 and the material tank 13 are pushed by the push plate 26, the raw material particles roll continuously under the pushing of the push plate 26, if the particles with smaller size exist in the raw material on the screen 24, the raw material particles can enter the next layer through the screen 24, omission of screening is avoided, when the raw material particles pass through the position of the discharge hole 32, the positions of the screen 24 and the bottom wall of the screening tank 11, which are connected with the vertical wall of the screening tank 11, are inclined downwards, and the screened raw material particles roll down to the discharge conveyor belt or the discharge pipeline at the corresponding position through the lifting cavity 23 at the corresponding height position.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement it without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. The utility model provides a permanent magnet production is with screening machine, includes screening jar (11), screening jar (11) outside terminal surface is equipped with control panel (12), its characterized in that: the screening tank is characterized in that an elevating screening mechanism is arranged on the inner side of the screening tank (11), the elevating screening mechanism comprises a material tank (13) fixedly arranged on the inner side of the screening tank (11), an annular array is arranged on the inner side of the material tank (13) and is fixedly provided with an arc-shaped plate (14), the inner side of the material tank (13) is divided into elevating cavities (23) with equal size by the arc-shaped plate (14), each elevating cavity (23) is far away from the arc-shaped inner wall of the axis of the material tank (13) and is provided with a hole in a penetrating manner, the hole is divided into three areas with sequentially increased apertures from the bottom side to the top side, the bottom side of the elevating cavity (23) is provided with a transmission mechanism, the outer side of the material tank (13) is provided with a discharging screening mechanism, the discharging screening mechanism comprises two filter screens (24) fixedly arranged between the inner wall of the screening tank (11) and the inner wall of the material tank (13), the filter screens (24) are respectively positioned at the junction positions of the hole areas on the elevating cavities (23), the aperture sizes of the filter screens (24) are consistent with the aperture sizes of the adjacent areas on the bottom sides, and the filter screens (24) are connected with the filter screens (11) in an inclined mode;

the discharging and screening mechanism comprises three rotary drums (25) which are rotatably arranged on the inner wall of the screening tank (11), the rotary drums (25) are respectively positioned close to the filter screen (24) and the bottom wall of the screening tank (11), push plates (26) are uniformly and fixedly arranged at the bottoms of the rotary drums (25), and the bottoms of the push plates (26) are close to the filter screen (24) or the bottom wall of the screening tank (11);

the top end of the push plate (26) is fixedly provided with a rotating ring (27), a fixed box (28) is fixedly arranged on the inner wall of the screening tank (11) and positioned at a position close to the rotary drum (25), a notch (29) is formed in the bottom side of the fixed box (28), the rotary drum (25) and the rotating ring (27) penetrate through the notch (29), a second motor (30) is fixedly arranged on the top wall in the fixed box (28), a friction wheel (31) is fixedly arranged at the tail end of a motor shaft of the second motor (30), and the friction wheel (31) is tightly abutted against the rotating ring (27);

the side wall of the screening tank (11) is provided with three discharge holes (32) in a penetrating mode, and the discharge holes (32) are respectively located at positions close to the filter screen (24) or the bottom wall of the screening tank (11).

2. The screening machine for producing permanent magnets according to claim 1, wherein: the periphery of the bottom wall of the screening tank (11) is inclined downwards.

3. The screening machine for producing permanent magnets according to claim 1, wherein: the lifting screening mechanism comprises a fixed plate (15) fixedly arranged at the top of the lifting cavity (23), a first rotating shaft (16) is rotatably arranged between the top wall and the bottom wall of the lifting cavity (23), and a spiral blade (17) is fixedly arranged on the first rotating shaft (16).

4. The screening machine for producing permanent magnets according to claim 1, wherein: the bottom of the material tank (13) is annularly arrayed and fixedly provided with supporting legs (33).

5. A permanent magnet production screen grader as in claim 3 wherein: the transmission mechanism comprises a transmission cavity (18) arranged in the bottom of the material tank (13), the bottom end of the first rotating shaft (16) extends into the transmission cavity (18) and is fixedly provided with a first gear (19), the center of the bottom wall of the transmission cavity (18) is rotationally provided with a second rotating shaft (20), the second rotating shaft (20) is fixedly provided with a second gear (21), and the second gears (21) are meshed with the first gears (19).

6. The permanent magnet production screening machine according to claim 5, wherein: the bottom of the material tank (13) is fixedly provided with a first motor (22), and the tail end of a motor shaft of the first motor (22) is fixedly connected with the second rotating shaft (20).