Circular Vibrating Screen Driven by Superconducting Motor and Its Usage Method

Abstract

The present invention relates to the technical field of vibrating screens, and discloses a circular vibrating screen driven by a superconducting motor and a usage method. The circular vibrating screen driven by the superconducting motor includes a support base and a protective shell. Inside the protective shell, a stirring assembly and a displacement assembly are respectively provided. The displacement assembly is arranged below the stirring assembly. The stirring assembly includes a rotating ring. Four stirring plates arranged in a circumferential arrangement are hinged between the inner walls of the rotating ring. Two symmetrical torsion springs are provided between the stirring plates and the rotating ring. A first sliding groove is opened in the upper part of the front surface of the stirring plate, and a first pushing plate is slidably connected inside the first sliding groove. In the present invention, under the action of the distance sensor, the distance between the first pushing plate and the distance sensor can be detected in real time, and the materials accumulated at this time can be reflected according to the distance. Corresponding adjustments are made according to different accumulation degrees. When the first threshold is reached, the materials are diverted to pass through the first sieve mesh and the second aggregation ring simultaneously for screening, thereby improving the screening efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrating screens, and particularly relates to a circular vibrating screen driven by a superconducting motor and a usage method thereof. Background Art

[0002] A vibrating screen is a high-precision fine powder screening machine with low noise and high efficiency. It takes 3 - 5 minutes to quickly change the screen mesh. It has a fully enclosed structure and is suitable for screening and filtering materials such as granules, powders, and mucus. The vibrating screen utilizes the relative movement between the granular material and the screen surface to enable some particles to pass through the screen holes and classify materials such as sand, gravel, and crushed stones into different grades according to particle size.

[0003] A simple vibrating screen for removing impurities from peony seeds with the publication number of CN106238320A includes a frame, a base, a circular screen body, an upper circular screen mesh, a lower circular screen mesh, a left - right driving device for driving the circular screen body to swing left and right, and a front - rear driving device for driving the circular screen body to swing front and back. The base is sleeved outside the circular screen body, the circular screen body is hinged to the base, the base is hinged to the frame, the upper circular screen mesh is installed at the bottom of the circular screen body, the lower circular screen mesh is provided with a discharge port, the lower circular screen mesh is located below the upper circular screen mesh and is inclined and installed on the frame, so that the peony seeds falling on its upper part can automatically roll out from the discharge port under the action of their own gravity. A rotating motor is installed above the circular screen body through a bracket, and a plurality of arc - shaped blades are installed on the rotating shaft of the rotating motor. The arc - shaped blades are located in the inner cavity of the circular screen body, and the bottom surface of the arc - shaped blades is 8 mm away from the top surface of the upper circular screen mesh.

[0004] A rotary vibrating screening machine with the publication number of CN104353608A includes a cylindrical screen box. This screening machine further includes: a rotating mechanism, which includes a rotating shaft and a driving mechanism for driving the rotating shaft to rotate. The rotating shaft is rotatably arranged on an elastic support, and the screen box is sleeved and fixed on the rotating shaft; a vibrating mechanism for driving the elastic support to vibrate; a multi - stage screening mechanism, including a multi - stage screening group that is inclined downward from top to bottom. This multi - stage screening group is fixedly arranged between the screen box and the rotating shaft; the diameters of the screen holes in the multi - stage screening group gradually decrease from top to bottom; discharge ports corresponding to the over - size materials and the undersize materials are respectively arranged at the downward - inclined ends of each stage of the screening group; an inlet for evenly distributing materials on the upper end surface of the screening group at the highest position is arranged at the upper end of the screen box.

[0005] Based on the above - mentioned scheme, during the actual use of the vibrating screen, the material on the surface of the vibrating screen gradually increases. At this time, the gravity of the vibrating screen is relatively large, and the swinging amplitude received at this time will gradually shrink, making it impossible to vibrate the material on the surface of the swinging screen, thus affecting the screening efficiency. At the same time, when the material is swinging, most of the material will converge towards the center, causing the material to accumulate together, and further affecting the overall screening efficiency. Summary of the Invention

[0006] The object of the present invention is to provide a circular rotary vibrating screen driven by a superconducting motor and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a circular rotary vibrating screen driven by a superconducting motor, comprising a support seat and a protective shell, wherein a stirring assembly and a displacement assembly are respectively arranged inside the protective shell, and the displacement assembly is arranged below the stirring assembly;

[0008] The stirring assembly includes a rotating ring, four stirring plates arranged in a circle are hinged between the inner walls of the rotating ring, two symmetrical torsion springs are arranged between the stirring plates and the rotating ring, a first slide groove is provided on the upper part of the front face of the stirring plate, a first push plate is slidably connected inside the first slide groove, a distance sensor is provided on the rear wall of the first slide groove, a second slide groove is provided on the inner bottom wall of the first slide groove, a second push plate is slidably connected inside the second slide groove, a group of springs arranged at equal distances are provided between the upper surface of the second push plate and the inner top wall of the first slide groove, a push plate is provided on the lower part of the front face of the stirring plate, and the front face of the push plate is inclined.

[0009] Preferably, the displacement assembly includes a connecting shaft, the upper end of the connecting shaft is fixedly connected to the bottom surface of the rotating ring, the outer surface of the connecting shaft is respectively sleeved with a first electromagnet and a first screen, the outer surface of the first electromagnet is provided with a positioning iron ring, the upper surface of the positioning iron ring is fixedly connected to the bottom surface of the first screen, and the lower end of the connecting shaft is provided with a second electromagnet, and the first electromagnet and the second electromagnet have the same magnetic properties.

[0010] Preferably, four discharge grooves arranged in a circle are provided at the edge of the upper surface of the first screen, two symmetrical toggle columns are provided at the edge of the bottom surface of the first screen, and a first gathering ring is provided at the upper part of the inner wall of the protective shell, and the bottom surface of the first gathering ring is in contact with the upper surface of the first screen.

[0011] Preferably, a second gathering ring and a second screen are respectively provided at the lower part of the inner wall of the protective shell, the second gathering ring is funnel-shaped, a plurality of through holes are opened on the upper surface of the second gathering ring, the size of each through hole is consistent with the aperture size of the first screen, and a group of circumferentially arranged toggle blocks are provided on the upper surface of the second gathering ring, and the upper surface of each toggle block is arc-shaped.

[0012] Preferably, the protective shell comprises an upper screen box, a lower screen box and a screen cover, a second connecting ring is provided between the upper screen box and the lower screen box, and a first connecting ring is provided between the lower screen box and the screen cover.

[0013] Preferably, the upper surface of the sieve cover is connected to a feed hopper, a servo motor is provided at the axis center of the inner top wall of the sieve cover, and the output shaft of the servo motor is fixedly connected to the upper surface of the rotating ring.

[0014] Preferably, a group of springs arranged in a circle are provided between the lower screen box and the support seat, a containing box is provided at the lower part of the inner wall of the lower screen box, a superconducting motor and an exciter are respectively provided inside the containing box, the output end of the superconducting motor and the input end of the exciter are fixedly connected, and the lower end of the lower screen box is connected to a discharge hopper.

[0015] The present invention also provides a method for using a circular rotary vibrating screen driven by a superconducting motor, and the specific operation steps are as follows:

[0016] S1. First, start the whole body to make it vibrate, so as to increase the overall screening effect, and then operate the stirring component to drive the displacement component and the first push plate to rotate respectively;

[0017] S2. Next, the material is placed on the surface of the first screen and the material is continuously smoothed by the first push plate to prevent the material from piling up and affecting the screening efficiency.

[0018] S3, then the distance sensor is used to detect the distance between the first push plate and the distance sensor. When the first threshold is reached, the position of the first screen is adjusted to open the discharge slot, so that the excess unscreened materials can be discharged and re-screened through the second gathering ring and the through hole below, so as to avoid excessive materials affecting the screening efficiency;

[0019] S4. When the distance sensor detects that the distance from the first push plate to the distance sensor reaches the second threshold, the position of the first screen is adjusted again so that the positioning iron ring is adsorbed on the surface of the second electromagnet, thereby driving the first screen to rotate. The toggle block and the toggle column make the first screen vibrate while rotating, thereby increasing its screening efficiency again.

[0020] Technical effects of the present invention:

[0021] 1. The present invention drives the entire protective shell to work through a superconducting motor. High-temperature superconductors are welded on the upper and lower sides of the rotor, which improves the electromagnetic conversion efficiency. The superconducting motor is smaller in size than the transmission motor, which improves the space utilization rate. The upper screen box, the lower screen box and the screen cover can be spliced together through the cooperation of the first connecting ring and the second connecting ring. When the internal parts are damaged, they can be freely disassembled, making it more convenient to repair.

[0022] 2. The present invention uses the cooperation between the rotating ring and the servo motor to enable the stirring plate to push the material accumulated on the surface of the first screen to move, so that the material continuously moves on the surface of the first screen and fully contacts the first screen to avoid accumulation, thereby improving the screening efficiency of the material. Through the cooperation between the second gathering ring and the through hole, the material can be further effectively screened.

[0023] 3. Through the mutual cooperation of the servo motor, the second electromagnet, and the positioning iron ring, the present invention can rotate the first sieve mesh, enabling the stirring columns and stirring blocks to continuously come into contact, causing the first sieve mesh to continuously move up and down reciprocally, making the materials on the surface of the first sieve mesh move violently, thereby increasing the screening efficiency again. Through the mutual cooperation of the first push plate, the second push plate, and the stirring plate, the position of the first sieve mesh can be freely adjusted to open the discharge chute.

[0024] 4. Under the action of the distance sensor, the present invention can detect the distance between the first push plate and the distance sensor in real time, reflect the materials accumulated at this time according to the distance, and make corresponding adjustments according to different accumulation degrees. When reaching the first threshold, the materials are diverted to be screened through the first sieve mesh and the second aggregation ring simultaneously, thereby improving the screening efficiency. When reaching the second threshold, the first sieve mesh rotates, and through the mutual cooperation of the stirring columns and the stirring blocks, the first sieve mesh moves up and down reciprocally while rotating, further improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic cross-sectional structure diagram of the overall structure of the present invention;

[0027] Figure 3 is a schematic diagram of the structure of the second aggregation ring of the present invention;

[0028] Figure 4 is a schematic diagram of the structure of the first sieve mesh of the present invention;

[0029] Figure 5 is a schematic diagram of the structure of the rotating ring of the present invention;

[0030] Figure 6 is a schematic diagram of the structure of the stirring plate of the present invention;

[0031] Figure 7 is a schematic cross-sectional structure diagram of the rotating ring of the present invention;

[0032] Figure 8 is a schematic cross-sectional structure diagram of the stirring plate of the present invention.

[0033] In the figure: 1. support seat; 2. protective shell; 201. upper screen box; 202. lower screen box; 203. screen cover; 204. second connecting ring; 205. first connecting ring; 3. stirring assembly; 301. rotating ring; 302. stirring plate; 303. first slide groove; 304. first push plate; 305. second slide groove; 306. second push plate; 307. push plate; 4. displacement assembly; 401. connecting shaft; 402. first electromagnet; 403. first screen; 404. positioning iron ring; 405. second electromagnet; 5. discharge trough; 6. toggle column; 7. first gathering ring; 8. second gathering ring; 9. second screen; 10. through hole; 11. toggle block; 12. feed hopper; 13. servo motor; 14. containing box; 15. superconducting motor; 16. discharge hopper. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0035] The present invention provides Figures 1 to 8A circular vibrating screen driven by a superconducting motor as shown, comprising a support base 1 and a protective housing 2. The protective housing 2 includes an upper sieve box 201, a lower sieve box 202 and a sieve cover 203. A second connecting ring 204 is provided between the upper sieve box 201 and the lower sieve box 202, and a first connecting ring 205 is provided between the lower sieve box 202 and the sieve cover 203. The upper sieve box 201, the lower sieve box 202 and the sieve cover 203 can be spliced together through the first connecting ring 205 and the second connecting ring 204. When the internal parts are damaged, they can be freely disassembled, making it more convenient for maintenance. At the same time, the remaining materials on the surface of the first sieve mesh 403 and the second sieve mesh 9 can also be cleaned by disassembly. A group of springs arranged in a circle are provided between the lower sieve box 202 and the support base 1. The lower sieve box 202 and the support base 1 are elastically connected. When the superconducting motor 15 generates vibration through the exciter, the protective housing 2 can vibrate freely, avoiding the situation that when the protective housing 2 and the support base 1 are fixedly connected, the connection part breaks during vibration, resulting in damage, and the internal material overflows from the crack, causing waste. A receiving box 14 is provided at the lower part of the inner wall of the lower sieve box 202. A superconducting motor 15 and an exciter are respectively provided inside the receiving box 14. A high-temperature superconductor is installed on the rotor of the superconducting motor 15. When the stator winding is energized to generate an alternating magnetic field, eddy currents are generated in the rotor high-temperature superconductor, and then a strong magnetic field is generated to drive the rotor to rotate. Since the resistivity of the high-temperature superconductor is extremely low and approaches zero, the electromagnetic conversion efficiency is greatly improved, and the heat generation of the winding is reduced. At the same power, the high-temperature superconducting motor is more energy-efficient. The output end of the superconducting motor 15 is fixedly connected to the input end of the exciter. A discharge hopper 16 is connected to the lower end of the lower sieve box 202. The discharge hopper 16 can collect the screened materials, making it more convenient for bagging.

[0036] A stirring component 3 and a displacement component 4 are respectively provided inside the protective housing 2. When the stirring component 3 rotates, it can smooth the materials on the surface of the first sieve mesh 403, making their distribution more uniform and preventing accumulation during subsequent screening. The displacement component 4 is arranged below the stirring component 3. The displacement component 4 can adjust the magnetic force between the first electromagnet 402 and the second electromagnet 405, so that the first sieve mesh 403 descends until the positioning iron ring 404 is adsorbed on the surface of the second electromagnet 405, enabling the first sieve mesh 403 to rotate following the stirring component 3;

[0037] The stirring assembly 3 includes a rotating ring 301. A feed hopper 12 is communicated with the upper surface of the sieve cover 203. A servo motor 13 is provided at the axis of the inner top wall of the sieve cover 203. The output rotating shaft of the servo motor 13 is fixedly connected to the upper surface of the rotating ring 301. When the servo motor 13 is started, it can drive the rotating ring 301 to rotate, so as to achieve the purpose of power transmission. Four stirring plates 302 arranged in a circumferential manner are hinged between the inner walls of the rotating ring 301. There are two symmetrical torsion springs between the stirring plates 302 and the rotating ring 301. When the materials accumulated on the surface of the stirring plates 302 gradually increase, under the action of gravity, the stirring plates 302 tilt to a certain extent along the hinge, so that during the material pushing process, the materials are continuously pushed outwards, avoiding excessive accumulation of materials in the middle of the first sieve mesh 403 and affecting the screening efficiency. The upper part of the front surface of the stirring plate 302 is provided with a first chute 303. A first push plate 304 is slidably connected inside the first chute 303. A distance sensor is provided on the rear wall of the first chute 303. The distance sensor can detect the distance between the first push plate 304 and the distance sensor in real time. The farther the distance is, the smaller the extrusion force received by the first push plate 304 at this time, and the less the remaining materials gathered at the corresponding first push plate 304. The closer the distance is, the greater the extrusion force received by the first push plate 304 at this time, and the more the remaining materials gathered at the corresponding first push plate 304, indicating that the screening efficiency is worse at this time, resulting in excessive accumulation of materials.

[0038] The inner bottom wall of the first chute 303 is provided with a second chute 305. A second push plate 306 is slidably connected inside the second chute 305. A group of equally spaced springs are provided between the upper surface of the second push plate 306 and the inner top wall of the first chute 303. When the first push plate 304 is forced to contract inside the first chute 303, the internal air is squeezed, so that the second push plate 306 gradually extends outwards, and at the same time the spring is stretched to generate a restoring elastic force. A pushing plate 307 is provided at the lower part of the front surface of the stirring plate 302, and the front surface of the pushing plate 307 is inclined. Under the action of the inclined surface, the materials can move upwards when it pushes the materials, so that it contacts the first push plate 304. At the same time, when the materials increase, the materials can directly spread over the stirring plate 302, avoiding excessive accumulation of materials at the stirring plate 302.

[0039] The displacement component 4 includes a connecting shaft 401. The upper end of the connecting shaft 401 is fixedly connected to the bottom surface of the rotating ring 301. A first electromagnet 402 and a first screen 403 are sleeved on the outer surface of the connecting shaft 401. The first screen 403 is in close contact with the first aggregation ring 7 under the magnetic repulsion force, preventing the first screen 403 from rotating when the connecting shaft 401 rotates. A positioning iron ring 404 is provided on the outer surface of the first electromagnet 402. When the positioning iron ring 404 descends and contacts the second electromagnet 405, the two are adsorbed together to form a new whole, so that the connecting shaft 401 can drive the first screen 403 to rotate when rotating. The upper surface of the positioning iron ring 404 is fixedly connected to the bottom surface of the first screen 403. A second electromagnet 405 is provided at the lower end of the connecting shaft 401. The first electromagnet 402 and the second electromagnet 405 have the same magnetic property. When the first electromagnet 402 and the second electromagnet 405 are energized, a magnetic repulsion force is generated between them, pushing the first electromagnet 402 to move upward gradually, so that the first electromagnet 402 drives the first screen 403 to be in close contact with the first aggregation ring 7. When the upper first electromagnet 402 is automatically powered off, its own magnetism disappears, and under the action of gravity, the positioning iron ring 404 quickly descends and adsorbs with the second electromagnet 405, making the two form a new whole and enabling them to move synchronously.

[0040] Four discharge grooves 5 arranged in a circular pattern are provided at the edge of the upper surface of the first screen 403. When a gap appears between the first screen 403 and the first aggregation ring 7, the discharge grooves 5 can be opened, effectively discharging the excess unfiltered materials and preventing excessive material accumulation from affecting the screening efficiency. Two symmetrical toggle columns 6 are provided at the edge of the bottom surface of the first screen 403. When the toggle columns 6 rotate with the first screen 403 and contact the toggle blocks 11, an impact can be generated to cause a certain vibration, further improving the screening efficiency through the vibration. When under the action of the rotational force, the toggle columns 6 cross over the toggle blocks 11, the first screen 403 as a whole can move upward, causing the first screen 403 to continuously move up and down reciprocally, making the materials on the surface of the first screen 403 move violently and increasing the screening efficiency again. A first aggregation ring 7 is provided at the upper part of the inner wall of the protective shell 2. The bottom surface of the first aggregation ring 7 is in contact with the upper surface of the first screen 403, and the friction coefficient between the two is relatively large, preventing the first screen 403 from rotating when the stirring component 3 rotates.

[0041] On the lower parts of the inner walls of the protective shell 2, a second gathering ring 8 and a second screen 9 are respectively provided. The second gathering ring 8 is funnel-shaped and can re-gather the materials discharged from the discharge chute 5. A plurality of through holes 10 are formed on the upper surface of the second gathering ring 8. The size of each through hole 10 is the same as the aperture size of the first screen 403. Through the mutual cooperation of the through holes 10 and the second gathering ring 8, the materials discharged from the discharge chute 5 can be re-screened, so as to adopt a shunt screening method to reduce the materials that need to be screened by the first screen 403, enabling it to complete the screening quickly. A group of toggle blocks 11 arranged in a circular pattern are provided on the upper surface of the second gathering ring 8, and the upper surface of each toggle block 11 is arc-shaped, avoiding the situation of jamming when the toggle column 6 hits and breaks the toggle block 11.

[0042] During actual use, first, the materials are put into the protective shell through the feed hopper 12, and then the superconducting motor 15 and the servo motor 13 are respectively started. Under the interaction of the superconducting motor 15 and the vibrator, the whole protective shell 2 shakes, thereby improving the overall screening efficiency. Under the action of the output rotating shaft of the servo motor 13, the rotating ring 301 is driven to rotate. Under the action of the rotating ring 301, the stirring plate 302 is driven to perform a circular motion, pushing the materials piled up on the surface of the first screen 403 to move, so that the materials continuously move on the surface of the first screen 403, fully contacting the first screen 403, avoiding the situation of piling up, and thus improving the screening efficiency of the materials.

[0043] When the detection value of the distance sensor reaches the first threshold, at this time, the materials piled up on the surface of the first push plate 304 increase. Under the extrusion action, the first push plate 304 contracts into the first chute 303, squeezing the air inside the first chute 303 to spread into the second chute 305. Under the action of the air pressure, the second push plate 306 gradually extends outwards, and at the same time, the spring is stretched to generate a restoring elastic force. Under the action of the four second push plates 306, the first screen 403 is pushed to gradually move downwards. When there is a gap between the first screen 403 and the first gathering ring 7, the discharge chute 5 is opened. At the same time, when the stirring plate 302 is squeezed, the stirring plate 302 can tilt to a certain extent along the hinge, so that during the material pushing process, the materials are continuously pushed outwards, and the materials are discharged through the discharge chute 5 and transported to the surface of the second gathering ring 8. Under the action of the through holes 10, the materials discharged from the discharge chute 5 can be re-screened, so as to adopt a shunt screening method to reduce the materials that need to be screened by the first screen 403, enabling it to complete the screening quickly and avoiding excessive material accumulation.

[0044] When the detection value of the distance sensor reaches the second threshold, at this time, the material accumulated on the surface of the first push plate 304 increases again. The first electromagnet 402 is powered off, so that the magnetic repulsion force between the first electromagnet 402 and the second electromagnet 405 disappears. Under the action of gravity, the first screen 403 drives the positioning iron ring 404 to quickly descend, so that the positioning iron ring 404 and the second electromagnet 405 are adsorbed together, forming a new whole, enabling the two to move synchronously. Under the action of the connecting shaft 401, the second electromagnet 405 can drive the first screen 403 to rotate, thereby driving the dialing column 6 to perform a circular motion. When the dialing column 6 rotates and contacts the dialing block 11, it can generate an impact to cause a certain vibration, and the screening efficiency is further improved through the vibration. When under the action of the rotational force, the dialing column 6 passes over the dialing block 11, the first screen 403 as a whole can move upward, so that the first screen 403 continuously moves up and down reciprocally, causing the material on the surface of the first screen 403 to move violently, increasing the screening efficiency again. Finally, the screened material will pass through the second screen 9 and be discharged from the discharge hopper 16 in sequence.

[0045] When the distance detected by the distance sensor between the first push plate 304 and the distance sensor reaches the second threshold, at this time, the position of the first screen 403 is adjusted again, so that the positioning iron ring 404 is adsorbed on the surface of the second electromagnet 405, thereby being able to drive the first screen 403 to rotate. When the dialing block 11 and the dialing column 6 cause the first screen 403 to vibrate while rotating, the screening efficiency is increased again. Embodiment

[0046] The present invention also provides a method for using a circular vibrating screen driven by a superconducting motor. The specific operation method steps are as follows:

[0047] S1. First, start the whole to make the whole vibrate and increase the screening effect of the whole. Then, operate the stirring assembly 3 to drive the displacement assembly 4 and the first push plate 304 to rotate respectively.

[0048] S2. Secondly, put the material on the surface of the first screen 403, and continuously smooth the material through the first push plate 304 to prevent the material from piling up and affecting the screening efficiency.

[0049] S3. Then, detect the distance between the first push plate 304 and the distance sensor through the distance sensor. When it reaches the first threshold, at this time, open the discharge chute 5 by adjusting the position of the first screen 403, and the excess unscreened material can be discharged, and the material is re-screened through the lower second aggregation ring 8 and the through hole 10 to prevent the material from being too much and affecting the screening efficiency.

[0050] S4. When the distance sensor detects that the distance between the first push plate 304 and the distance sensor reaches the second threshold, the position of the first screen 403 is adjusted again, so that the positioning iron ring 404 is adsorbed on the surface of the second electromagnet 405, thereby driving the first screen 403 to rotate, and the toggle block 11 and the toggle column 6 make the first screen 403 vibrate while rotating, thereby increasing its screening efficiency again.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circular vibrating screen driven by a superconducting motor, comprising a support base (1) and a protective shell (2), characterized in that, A stirring assembly (3) and a displacement assembly (4) are respectively provided inside the protective shell (2), and the displacement assembly (4) is arranged below the stirring assembly (3); The stirring assembly (3) comprises a rotating ring (301), four stirring plates (302) arranged in a circle are hinged between the inner walls of the rotating ring (301), two symmetrical torsion springs are arranged between the stirring plates (302) and the rotating ring (301), a first slide groove (303) is provided at the upper part of the front face of the stirring plate (302), a first push plate (304) is slidably connected inside the first slide groove (303), a distance sensor is provided at the rear wall of the first slide groove (303), a second slide groove (305) is provided at the inner bottom wall of the first slide groove (303), a second push plate (306) is slidably connected inside the second slide groove (305), a group of springs arranged at equal distances are provided between the upper surface of the second push plate (306) and the inner top wall of the first slide groove (303), a push plate (307) is provided at the lower part of the front face of the stirring plate (302), and the front face of the push plate (307) is inclined; The displacement assembly (4) comprises a connecting shaft (401), the upper end of the connecting shaft (401) is fixedly connected to the bottom surface of the rotating ring (301), the outer surface of the connecting shaft (401) is respectively sleeved with a first electromagnet (402) and a first screen (403), the outer surface of the first electromagnet (402) is provided with a positioning iron ring (404), the upper surface of the positioning iron ring (404) is fixedly connected to the bottom surface of the first screen (403), and the lower end of the connecting shaft (401) is provided with a second electromagnet (405), and the first electromagnet (402) and the second electromagnet (405) have the same magnetic properties; Four discharge grooves (5) arranged in a circumferential pattern are provided at the edge of the upper surface of the first screen (403); when a gap appears between the first screen (403) and the first gathering ring (7), the discharge grooves (5) are opened; Two symmetrical toggle posts (6) are provided at the edge of the bottom surface of the first screen (403), a first gathering ring (7) is provided at the upper part of the inner wall of the protective shell (2), and the bottom surface of the first gathering ring (7) is in contact with the upper surface of the first screen (403); A second gathering ring (8) and a second screen (9) are respectively provided at the lower part of the inner wall of the protective shell (2); the second gathering ring (8) is funnel-shaped; a plurality of through holes (10) are provided on the upper surface of the second gathering ring (8); the size of each through hole (10) is consistent with the aperture size of the first screen (403); a group of circumferentially arranged toggle blocks (11) are provided on the upper surface of the second gathering ring (8); and the upper surface of each toggle block (11) is arc-shaped; When the toggle post (6) rotates along with the first screen (403) until it contacts the toggle block (11), an impact is generated to cause a certain vibration. When the toggle post (6) passes over the toggle block (11) under the action of the rotational force, the first screen (403) can be moved upward as a whole, thereby causing the first screen (403) to continuously reciprocate up and down.

2. The circular vibrating screen driven by the superconducting motor according to claim 1, wherein The protective shell (2) comprises an upper screen box (201), a lower screen box (202) and a screen cover (203); a second connecting ring (204) is provided between the upper screen box (201) and the lower screen box (202); and a first connecting ring (205) is provided between the lower screen box (202) and the screen cover (203).

3. The circular vibrating screen driven by a superconducting motor according to claim 2, wherein The upper surface of the sieve cover (203) is connected to a feed hopper (12), a servo motor (13) is provided at the axis center of the inner top wall of the sieve cover (203), and an output shaft of the servo motor (13) is fixedly connected to the upper surface of the rotating ring (301).

4. The circular vibrating screen driven by a superconducting motor according to claim 3, wherein A group of springs arranged in a circle are provided between the lower screen box (202) and the support seat (1); a receiving box (14) is provided at the lower part of the inner wall of the lower screen box (202); a superconducting motor (15) and an exciter are provided inside the receiving box (14); an output end of the superconducting motor (15) and an input end of the exciter are fixedly connected; and a discharge hopper (16) is connected to the lower end of the lower screen box (202).

5. A method for using a circular vibrating sieve driven by a superconducting motor as described in claim 4, characterized in that, The steps include: S1, first start the whole body to make the whole body vibrate, so as to increase the overall screening effect, and then make the stirring component (3) operate, so as to drive the displacement component (4) and the first push plate (304) to rotate respectively; S2, next, placing the material onto the surface of the first screen (403), and continuously smoothing the material through the first push plate (304) to prevent the material from piling up and affecting the screening efficiency; S3, then detecting the distance between the first push plate (304) and the distance sensor through a distance sensor, and when a first threshold is reached, the position of the first screen (403) is adjusted to open the discharge chute (5), so that excess unscreened material can be discharged and rescreened through the second gathering ring (8) and the through hole (10) below, thereby preventing excessive material from affecting the screening efficiency; S4. When the distance sensor detects that the distance between the first push plate (304) and the distance sensor reaches a second threshold value, the position of the first screen (403) is adjusted again, so that the positioning iron ring (404) is adsorbed on the surface of the second electromagnet (405), thereby driving the first screen (403) to rotate, and the first screen (403) is vibrated while rotating by the toggle column (6), thereby increasing the screening efficiency again.

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