Laminated multi-stage micro powder sieve

Abstract

The invention relates to the technical field of multi-stage micro powder sieves, in particular to a laminated multi-stage micro powder sieve which comprises a mounting base, supporting legs are fixedly mounted on the upper side of the mounting base in an array mode, first mounting blocks are fixedly mounted on the upper sides of the two sets of supporting legs, and driving motors are fixedly mounted at the upper ends of the first mounting blocks; a first flange plate is fixedly mounted at the end of an output shaft of the driving motor, a second flange plate is arranged on the first flange plate, first screw rods are fixedly mounted on the second flange plate in an array manner, the first screw rods are inserted into the first flange plate, and first screw sleeves are mounted at the ends of the first screw rods through threads. The device is divided into an upper layer and a lower layer, so that the device has the effect of screening particles with different diameters, a second polarization block is arranged at the differential screen on the lower side, and the second polarization block can perform higher-frequency vibration on the differential screen on the lower side at a higher rotating speed.

Description

Technical Field

[0001] The invention relates to the technical field of multi-stage micro powder sieves, in particular to a laminated multi-stage micro powder sieve. Background Art

[0002] The vibrating screen works by using the reciprocating vibration generated by the vibrator excitation. The upper rotating weight of the vibrator causes the screen surface to produce a plane gyration vibration, while the lower rotating weight causes the screen surface to produce a conical gyration vibration. The combined effect causes the screen surface to produce a complex gyration vibration. Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and an ellipse on the vertical plane. The amplitude can be changed by adjusting the exciting force of the upper and lower rotating weights. And adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen surface motion trajectory and change the motion trajectory of the material on the screen surface.

[0003] In the use of vibrating screen, screen and vibration are the core. However, in the screening process of micro powder, due to the large contact area between micro powders, the friction is large, and it is easy to adsorb on the screen under the action of static electricity, so the screen is prone to blockage. In addition, the vibration amplitude of the existing vibrating screen is single, the efficiency is relatively low during the screening process, and it is difficult to adjust the amplitude and mode of vibration according to actual conditions. For this reason, we proposed a laminated multi-stage micro powder screen to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a laminated multi-stage micro powder sieve to solve the problems in the above background technology that the sieve is prone to clogging and the vibration amplitude is relatively single.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a laminated multi-stage micro powder sieve comprises a mounting base, a support leg is fixedly mounted in an array on the upper side of the mounting base, a first mounting block is fixedly mounted on the upper side of two groups of the support legs, a driving motor is fixedly mounted on the upper end of the first mounting block, a first flange is fixedly mounted at the end of the output shaft of the driving motor, a second flange is arranged on the first flange, a first screw is fixedly mounted in an array on the second flange, the first screw is inserted in the first flange, a first screw sleeve is threadedly mounted at the end of the first screw, and a first connecting rod is fixedly mounted on the second flange. A flexible belt is connected, a first rotating mounting block is provided on one side of the first connecting flexible belt, a first rotating mounting block is fixedly installed on the first connecting flexible belt, a first polarizing block is fixedly installed on the first rotating mounting block, the first rotating mounting block is rotatably installed on the first mounting side plate, a differential screening box is provided on the rear side of the first mounting side plate, the first mounting side plate is fixedly installed on the differential screening box, two groups of differential screens are installed on the differential screening box, a differential receiving plate is fixedly installed on the lower side of the differential screen, the differential receiving plate is fixedly installed in the differential screening box, and four groups of guide plates are fixedly installed at the end of the differential screening box.

[0006] Preferably, fixed corner blocks are fixedly installed at the four corners of the two groups of differential screens, the fixed corner blocks are provided with a snap-fitting groove, a tensioning block is engaged in the snap-fitting groove, a first limit block is fixedly installed in the snap-fitting groove, a limit hole is provided on the tensioning block, the first limit block is inserted in the limit hole, a second screw is movably inserted at one end of the tensioning block, an expansion bolt is fixedly installed on the inner side of the differential screening box, and the second screw is threadedly installed in the expansion bolt.

[0007] Preferably, the differential receiving plate is hollow and a disturbance ball is movably arranged inside the differential receiving plate, the disturbance ball is evenly distributed in the differential receiving plate, the disturbance ball is connected to the inside of the differential receiving plate by a thin rope, and the diameter of the movable range of the disturbance ball is greater than the height of the inner side of the differential receiving plate.

[0008] Preferably, a first mounting bar is installed on the lower side of the end of the differential screen, a first placement groove is arranged in an array on the first mounting bar, a rubber block is installed in the first placement groove, a plurality of groups of the rubber blocks are connected by a series rope, the rubber block array is fixedly mounted on the series rope, and the length of the series rope is adapted to the length of the differential screen.

[0009] Preferably, a second mounting strip is provided on the lower side of the first mounting strip, and a second limiting block is fixedly installed in an array on the second mounting strip, the position and size of the second limiting block are matched with the position and size of the first placement slot, the second limiting block is inserted in the first placement slot, a first limiting slot is provided on the second limiting block, the width of the first limiting slot is matched with the diameter of the cross-section of the series rope, the series rope is engaged in the first limiting slot, first insertion holes are provided at both ends of the first mounting strip and the second mounting strip, a third screw is inserted in the first insertion hole, a second screw sleeve is fixedly installed on the lower side of the edge of the differential screen, and the third screw is threadedly installed in the second screw sleeve.

[0010] Preferably, the differential screening box is fixedly installed with a second mounting side plate at both left and right ends on the front and rear sides, and a mounting column is fixedly installed on the second mounting side plate. A snap ring is closed on the mounting column, and the snap ring is fixedly installed on the mounting column through a threaded connection between a screw and a bolt, and a connecting base is fixedly installed on the lower end of the snap ring. A fixed base is provided on the lower side of the connecting base, and the connecting base and the fixed base are connected by two groups of springs, two groups of protrusions are fixedly installed on the fixed base and the protrusions are inserted in the springs, and the fixed base is fixedly installed on the supporting legs.

[0011] Preferably, a weighting sheet is installed on the first polarizing block, and the shape of the weighting sheet is matched with the shape of the first polarizing block. Two groups of second insertion holes are opened on one side of the upper end of the weighting sheet, and fourth screws are inserted in both groups of the second insertion holes. Two groups of third screw sleeves are fixedly installed on one side of the upper end of the first polarizing block, and the positions of the third screw sleeves are matched with the positions of the second insertion holes. The fourth screw is installed in the third screw sleeves through threads.

[0012] Preferably, a third mounting side plate is provided at the lower side of the first mounting side plate, the third mounting side plate is fixedly mounted on the differential screening box, a second rotating mounting block is rotatably mounted on the third mounting side plate, a second polarizing block is fixedly mounted on the second rotating mounting block, a second connecting flexible belt is fixedly mounted on the second rotating mounting block, a third flange is fixedly mounted on the second connecting flexible belt, a fifth screw is fixedly mounted in an array on the third flange, a fourth flange is mounted on the third flange, the fifth screw is inserted in the fourth flange, a fourth screw sleeve is threadedly mounted at the end of the fifth screw, a connecting rotating rod is fixedly mounted on the fourth flange, the connecting rotating rod is rotatably mounted on the first mounting block, two groups of first limiting rings are fixedly mounted on the connecting rotating rod, a first gear is fixedly mounted between the two groups of the first limiting rings, two groups of second limiting rings are fixedly mounted on the output shaft of the driving motor, a second gear is fixedly mounted between the two groups of the second limiting rings, and a transmission gear ring is sleeved on both the first gear and the second gear.

[0013] Preferably, the diameter of the second gear is greater than the diameter of the first gear, and the volume and weight of the second polarization block are smaller than those of the first polarization block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is divided into two layers, the upper and lower layers, so that the device has the effect of screening particles of different diameters, and a second polarization block is arranged at the differential screen on the lower side, and the second polarization block can vibrate the differential screen on the lower side at a higher frequency through a faster rotation speed, thereby making the filtering efficiency of the differential screen on the lower side faster, and the device is also provided with rubber blocks and disturbance balls, both of which can perform additional vibrations on the differential screen and the first flange during the vibration process, and the vibration generated by the second polarization block can effectively solve the problem of blockage of the differential screen during operation of the device, and because there are more vibration sources and they can be selectively aggravated or split, the amplitude and position of the vibration can be adjusted, thereby increasing the functionality of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic front view of the structure of the present invention; Figure 2 It is a schematic diagram of the structural separation of the differential screen of the present invention; Figure 3 It is a bottom view schematic diagram of the structure of the differential screen of the present invention; Figure 4 It is a schematic diagram of the structural cross section of the differential receiving plate of the present invention; Figure 5 It is a structural schematic diagram of the spring of the present invention; Figure 6 It is a schematic diagram of the structural separation of the driving motor of the present invention; Figure 7 It is a schematic diagram of the structural separation of the second polarization block of the present invention; Figure 8 For the present invention Figure 2 A is a partial enlarged schematic diagram; Fig. 9 For the present invention Figure 3 A partial enlarged schematic diagram of B in the middle; Fig.10 For the present invention Figure 7 A partial enlarged schematic diagram of C in the middle.

[0017] In the figure: 1. mounting base; 2. supporting leg; 3. first mounting block; 4. driving motor; 5. first flange; 6. second flange; 7. first screw; 8. first screw sleeve; 9. first connecting flexible belt; 10. first rotating mounting block; 11. first polarizing block; 12. first mounting side plate; 13. differential screening box; 14. differential screening screen; 15. differential receiving plate; 16. guide plate; 17. fixed angle block; 18. engaging groove; 19. tensioning block; 20. first limiting block; 21. limiting hole; 22. second screw; 23. expansion bolt; 24. disturbance ball; 25. first mounting strip; 26. first placement slot; 27. rubber block; 28. series rope; 29. ​​second mounting strip; 30. second Limit block; 31. first limit groove; 32. first insertion hole; 33. third screw rod; 34. second screw sleeve; 35. second mounting side plate; 36. mounting column; 37. snap ring; 38. connecting base; 39. spring; 40. fixed base; 41. weighting sheet; 42. second insertion hole; 43. fourth screw rod; 44. third screw sleeve; 45. third mounting side plate; 46. second rotating mounting block; 47. second polarizing block; 48. second connecting flexible belt; 49. third flange; 50. fifth screw rod; 51. fourth flange; 52. fourth screw sleeve; 53. connecting rotating rod; 54. first limit ring; 55. first gear; 56. second limit ring; 57. second gear; 58. transmission gear ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-10An embodiment of the present invention is as follows: a laminated multi-stage micro powder sieve comprises a mounting base 1, a support leg 2 is fixedly mounted in an array on the upper side of the mounting base 1, a first mounting block 3 is fixedly mounted on the upper side of two groups of support legs 2, a driving motor 4 is fixedly mounted on the upper end of the first mounting block 3, a first flange 5 is fixedly mounted at the end of the output shaft of the driving motor 4, a second flange 6 is arranged on the first flange 5, a first screw 7 is fixedly mounted in an array on the second flange 6, the first screw 7 is inserted in the first flange 5, a first screw sleeve 8 is threadedly mounted at the end of the first screw 7, a first connecting flexible belt 9 is fixedly mounted on the second flange 6, and the first connecting flexible belt A first rotating mounting block 10 is provided on one side of 9, the first connecting flexible belt 9 is fixedly installed with the first rotating mounting block 10, a first polarizing block 11 is fixedly installed on the first rotating mounting block 10, the first rotating mounting block 10 is rotatably installed on the first mounting side plate 12, a differential screening box 13 is provided on the rear side of the first mounting side plate 12, the first mounting side plate 12 is fixedly installed on the differential screening box 13, two groups of differential screens 14 are installed on the differential screening box 13, a differential receiving plate 15 is fixedly installed on the lower side of the differential screen 14, the differential receiving plate 15 is fixedly installed in the differential screening box 13, and four groups of guide plates 16 are fixedly installed at the end of the differential screening box 13. The device is used for differential screening and is divided into two layers, the aperture size of the differential screen 14 arranged on the upper side is larger than the aperture size of the differential screen 14 arranged on the lower side. The device has the effect of screening particles of different diameters. The connection between the vibration mechanism arranged in the device and the differential screening box 13 is flexibly connected through the first connecting flexible belt 9, which can effectively improve the service life of the device, reduce the noise generated by the device during operation, and increase the stability of the device during operation. The device is also provided with a rubber block 27 and a series rope 28. The rubber block 27 and the series rope 28 are used for the operation of the device. During the operation, the differential screen 14 will be collided, so that the differential screen 14 is vibrated during the operation, so that the fine powder stuck in the aperture of the differential screen 14 can be discharged, thereby reducing the occurrence of blockage during the operation of the equipment, and further increasing the stability of the equipment during use. The equipment is also additionally provided with a second polarization block 47. Compared with the first polarization block 11, the second polarization block 47 has a smaller volume and a faster rotation speed, and can perform additional high-frequency vibration on the differential screen 14 on the lower side, so that finer materials on the lower side can be vibrated down, thereby increasing the functionality of the equipment during use.

[0020] Furthermore, the four corners of the two groups of differential screens 14 are fixedly installed with fixed corner blocks 17, the fixed corner blocks 17 are provided with engaging grooves 18, the engaging grooves 18 are engaged with tensioning blocks 19, the engaging grooves 18 are fixedly installed with first limit blocks 20, the tensioning blocks 19 are provided with limiting holes 21, the first limit blocks 20 are inserted into the limiting holes 21, one end of the tensioning blocks 19 is movably inserted with second screws 22, the inner side of the differential screening box 13 is fixedly installed with expansion bolts 23, and the second screws 22 are threadedly installed in the expansion bolts 23. The schematic diagram of the structure is as follows: Figure 8 , which is the installation mechanism of the differential screen 14. The differential screen 14 itself has the characteristics of high elasticity, tensile resistance, wear resistance and durability. This installation method can tighten the differential screen 14 by extrusion during the installation process, which can increase the stability of the differential screen 14 during installation. Moreover, this installation method makes the differential screen 14 more convenient to be disassembled and replaced, which increases the convenience of using the equipment. It is fixed by the expansion bolt 23 and the second screw 22, which increases the stability of the differential screen 14 after fixation.

[0021] Furthermore, the differential receiving plate 15 is hollow and a disturbance ball 24 is movably arranged inside the differential receiving plate 15. The disturbance ball 24 is evenly distributed inside the differential receiving plate 15. The disturbance ball 24 is connected to the inside of the differential receiving plate 15 by a thin rope. The diameter of the movement range of the disturbance ball 24 is greater than the height of the inside of the differential receiving plate 15. The schematic diagram of the structure is as follows: Figure 4 This structure can make the differential receiving plate 15 drive the internal disturbance ball 24 to move when it vibrates. During the movement of the expansion bolt 23, it will hit the inner side of the differential receiving plate 15, so that the differential receiving plate 15 is vibrated again, so that the micro-powder on the differential receiving plate 15 can be discharged smoothly under the action of vibration, and will not be retained on the differential receiving plate 15 due to the friction between the micro-powders and the friction with the surface of the differential receiving plate 15, thereby increasing the smoothness of the equipment when discharging micro-powders.

[0022] Furthermore, a first mounting bar 25 is installed at the lower side of the end of the differential screen 14, and a first placement groove 26 is arranged in an array on the first mounting bar 25. A rubber block 27 is installed in the first placement groove 26. Multiple groups of rubber blocks 27 are connected by a series rope 28. The rubber block 27 array is fixedly installed on the series rope 28. The length of the series rope 28 is adapted to the length of the differential screen 14. The schematic diagram of the structure is as follows: Fig. 9 During the use of the equipment, the rubber block 27 will be driven to move, thereby impacting the lower side of the differential screen 14. The impact can allow the micro powder stuck in the aperture of the differential screen 14 to be discharged, thereby reducing the clogging of the differential screen 14 and increasing the functionality of the equipment during use.

[0023] Furthermore, a second mounting bar 29 is provided on the lower side of the first mounting bar 25, and a second limiting block 30 is fixedly installed in an array on the second mounting bar 29. The position and size of the second limiting block 30 are matched with the position and size of the first placement slot 26. The second limiting block 30 is inserted in the first placement slot 26. A first limiting slot 31 is provided on the second limiting block 30. The width of the first limiting slot 31 is matched with the diameter of the cross section of the series rope 28. The series rope 28 is engaged in the first limiting slot 31. First insertion holes 32 are provided at both ends of the first mounting bar 25 and the second mounting bar 29. A third screw 33 is inserted in the first insertion hole 32. A second screw sleeve 34 is fixedly installed on the lower side of the edge of the differential screen 14, and the third screw 33 is installed in the second screw sleeve 34 through threads. The schematic diagram of the structure is as follows: Fig. 9 This structure allows the rubber block 27 and the series rope 28 to be replaced, so that the rubber block 27 and the series rope 28 can be replaced in time when they are damaged. Moreover, due to the existence of the first limiting groove 31, the tension of the series rope 28 itself can be adjusted, which increases the functionality of the device when in use. At the same time, this structure also allows the first mounting bar 25 and the second mounting bar 29 to be disassembled, so that the user can selectively assemble them, and can replace the remaining parts in time when they are damaged, further increasing the convenience of equipment maintenance.

[0024] Furthermore, the left and right ends of the front and rear sides of the differential screening box 13 are fixedly installed with second mounting side plates 35, and mounting posts 36 are fixedly installed on the second mounting side plates 35. The mounting posts 36 are closed with snap rings 37, and the snap rings 37 are fixedly installed on the mounting posts 36 through the threaded connection between the screw and the bolt. The lower end of the snap ring 37 is fixedly installed with a connecting base 38, and a fixed base 40 is arranged on the lower side of the connecting base 38. The connecting base 38 is connected to the fixed base 40 through two groups of springs 39, and two groups of protrusions are fixedly installed on the fixed base 40 and the protrusions are inserted into the springs 39. The fixed base 40 is fixedly installed on the support leg 2. The schematic diagram of the structure is as follows: Figure 5 This structure allows part of the vibration generated by the differential screening box 13 during operation to be offset by the spring 39, thereby reducing the vibration transmitted to the ground and increasing the stability of the equipment during use. The spring 39 does not have the effect of reducing the vibration of the equipment as a whole, so the offset vibration will be fed back to the differential screening box 13 through the elasticity of the spring 39, but this feedback vibration is beneficial to the operation of the differential screening box 13 itself and will not affect the normal operation of the equipment.

[0025] Furthermore, a weighting sheet 41 is mounted on the first polarizing block 11, and the shape of the weighting sheet 41 matches the shape of the first polarizing block 11. Two sets of second insertion holes 42 are opened on one side of the upper end of the weighting sheet 41, and fourth screws 43 are inserted in both sets of second insertion holes 42. Two sets of third screw sleeves 44 are fixedly mounted on one side of the upper end of the first polarizing block 11, and the positions of the third screw sleeves 44 match the positions of the second insertion holes 42. The fourth screw 43 is threadedly mounted in the third screw sleeves 44. The schematic diagram of the structure is as follows: Figure 6 This structure allows the weight of the first polarization block 11 to be increased by adding a weighting sheet 41. After the weight is added, the vibration amplitude generated when the first polarization block 11 is rotated by the drive motor 4 is larger. Whether to add the weighting sheet 41 can be selected according to actual usage conditions, thereby increasing the functionality of the device when in use.

[0026] Further, a third mounting side plate 45 is provided on the lower side of the first mounting side plate 12, and the third mounting side plate 45 is fixedly mounted on the differential screening box 13. A second rotating mounting block 46 is rotatably mounted on the third mounting side plate 45, and a second polarizing block 47 is fixedly mounted on the second rotating mounting block 46. A second connecting flexible belt 48 is fixedly mounted on the second connecting flexible belt 48, and a third flange 49 is fixedly mounted on the second connecting flexible belt 48. A fifth screw 50 is fixedly mounted in an array on the third flange 49, and a fourth flange 51 is mounted on the third flange 49. The fifth screw 50 Inserted in the fourth flange 51, the end of the fifth screw rod 50 is threadedly installed with a fourth screw sleeve 52, the fourth flange 51 is fixedly installed with a connecting rod 53, the connecting rod 53 is rotatably installed on the first mounting block 3, two groups of first limiting rings 54 are fixedly installed on the connecting rod 53, a first gear 55 is fixedly installed between the two groups of first limiting rings 54, two groups of second limiting rings 56 are fixedly installed on the output shaft of the driving motor 4, a second gear 57 is fixedly installed between the two groups of second limiting rings 56, and a transmission gear ring 58 is sleeved on the first gear 55 and the second gear 57. The schematic diagram of the structure is as follows: Figure 7 and Fig.10The device is divided into two layers, the upper and lower layers. The aperture size of the differential screen 14 arranged on the upper side is larger than the aperture size of the differential screen 14 arranged on the lower side, so the differential screen 14 on the lower side filters finer particles. However, under the condition of equal amplitude, the differential screen 14 on the lower side has a smaller aperture and a greater friction force between the particles, which will make the filtering speed of the differential screen 14 on the lower side slower. Moreover, during the operation of the driving motor 4, although the entire differential screening box 13 will be driven to vibrate, the force of the driving motor 4 will first act on the connection, that is, the upper differential screen 14, so that the filtering speed of the lower differential screen 14 is relatively slower. The structure can increase the vibration degree of the lower differential screen 14, thereby improving the filtering efficiency of the lower differential screen 14.

[0027] Furthermore, the diameter of the second gear 57 is greater than the diameter of the first gear 55, and the volume and weight of the second polarization block 47 are both smaller than the first polarization block 11. This structure allows the rotation speed of the lower second polarization block 47 to be faster, thereby generating a higher vibration frequency for the lower differential screen 14, thereby increasing the functionality of the device when in use.

[0028] Working principle: When the equipment is in use, first install the differential screen 14, close the tensioning block 19 in the engaging groove 18, so that the first limit block 20 is inserted in the limit hole 21, and then tighten the differential screen 14 and fix it on the differential screening box 13 by screwing the second screw 22 in the expansion bolt 23, tighten the series rope 28, and engage the series rope 28 in the first limit groove 31, and then engage the second mounting bar 29 on the lower side of the first mounting bar 25 so that the first insertion hole 32 is opposite, and insert the third screw 33 in the first insertion hole 32, so that the third screw 33 is threadedly installed in the second screw sleeve 34 to complete the assembly of the series rope 28 and the rubber block 27. When the weighting sheet 41 needs to be assembled, close the central groove of the weighting sheet 41 on the first rotating mounting block 10, and then rotate the weighting sheet 41 so that the weighting sheet 41 is inserted in the first polarization block 11, at this time, the second insertion hole 42 is opposite to the third screw sleeve 44, and then the fourth screw 43 is screwed into the third screw sleeve 44 to fix it. When in use, start the drive motor 4, and the output shaft of the drive motor 4 rotates to drive the first polarization block 11 to rotate, thereby driving the differential screening box 13 to vibrate. During the vibration, the rubber block 27 will collide with the lower side of the differential screen 14, so that the differential screen 14 vibrates again, and the differential receiving plate 15 will also be collided by the disturbance ball 24, so that the differential receiving plate 15 will also be vibrated again. During the rotation of the output shaft of the drive motor 4, the transmission gear ring 58 will be driven to rotate through the second gear 57, so that the first gear 55 drives the connecting rod 53 to rotate, thereby causing the second polarization block 47 to rotate, to achieve additional vibration of the lower differential screen 14, and the above is the entire working principle of the present invention.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A laminated multi-stage micro powder sieve, comprising a mounting base (1), wherein an array of supporting legs (2) are fixedly mounted on the upper side of the mounting base (1), characterized in that: A first mounting block (3) is fixedly mounted on the upper side of the two groups of support legs (2); a driving motor (4) is fixedly mounted on the upper end of the first mounting block (3); a first flange (5) is fixedly mounted at the end of the output shaft of the driving motor (4); a second flange (6) is arranged on the first flange (5); a first screw (7) is fixedly mounted in an array on the second flange (6); the first screw (7) is inserted into the first flange (5); a first screw sleeve (8) is threadedly mounted at the end of the first screw (7); a first connecting flexible belt (9) is fixedly mounted on the second flange (6); a first rotating mounting block (10) is arranged on one side of the first connecting flexible belt (9); and the first connecting flexible belt (9) is fixedly mounted on the first rotating mounting block (10). The polarizing belt (9) is fixedly mounted with a first rotating mounting block (10), a first polarizing block (11) is fixedly mounted on the first rotating mounting block (10), the first rotating mounting block (10) is rotatably mounted on a first mounting side plate (12), a differential screening box (13) is arranged on the rear side of the first mounting side plate (12), the first mounting side plate (12) is fixedly mounted on the differential screening box (13), two groups of differential screens (14) are mounted on the differential screening box (13), a differential receiving plate (15) is fixedly mounted on the lower side of the differential screen (14), the differential receiving plate (15) is fixedly mounted in the differential screening box (13), and four groups of guide plates (16) are fixedly mounted at the end of the differential screening box (13).

2. The laminated multi-stage micro powder sieve according to claim 1, characterized in that: Fixed corner blocks (17) are fixedly installed at the four corners of the two groups of differential screens (14), the fixed corner blocks (17) are provided with a snap-fitting groove (18), a tensioning block (19) is engaged in the snap-fitting groove (18), a first limit block (20) is fixedly installed in the snap-fitting groove (18), a limit hole (21) is provided in the tensioning block (19), the first limit block (20) is inserted in the limit hole (21), a second screw (22) is movably inserted at one end of the tensioning block (19), an expansion bolt (23) is fixedly installed on the inner side of the differential screening box (13), and the second screw (22) is installed in the expansion bolt (23) through a thread.

3. The laminated multi-stage micro powder sieve according to claim 1, characterized in that: The differential receiving plate (15) is hollow and a disturbance ball (24) is movably arranged inside the differential receiving plate (15). The disturbance balls (24) are evenly distributed inside the differential receiving plate (15). The disturbance balls (24) are connected to the inside of the differential receiving plate (15) via a thin rope. The diameter of the movable range of the disturbance balls (24) is greater than the height of the inside of the differential receiving plate (15).

4. The laminated multi-stage micro powder sieve according to claim 1, characterized in that: A first mounting bar (25) is installed at the lower side of the end of the differential screen (14); a first placement groove (26) is arranged in an array on the first mounting bar (25); a rubber block (27) is installed in the first placement groove (26); a plurality of groups of the rubber blocks (27) are connected by a series rope (28); the rubber block (27) array is fixedly installed on the series rope (28); and the length of the series rope (28) is adapted to the length of the differential screen (14).

5. The laminated multi-stage micro powder sieve according to claim 4, characterized in that: A second mounting bar (29) is arranged at the lower side of the first mounting bar (25), and a second limiting block (30) is fixedly installed in an array on the second mounting bar (29), the position and size of the second limiting block (30) are matched with the position and size of the first placement groove (26), the second limiting block (30) is inserted in the first placement groove (26), a first limiting groove (31) is provided on the second limiting block (30), the width of the first limiting groove (31) is matched with the diameter of the cross section of the series rope (28), the series rope (28) is engaged in the first limiting groove (31), first insertion holes (32) are provided at both ends of the first mounting bar (25) and the second mounting bar (29), a third screw (33) is inserted in the first insertion hole (32), a second screw sleeve (34) is fixedly installed on the lower side of the edge of the differential screen (14), and the third screw (33) is installed in the second screw sleeve (34) through a thread.

6. The laminated multi-stage micro powder sieve according to claim 1, characterized in that: The second mounting side plates (35) are fixedly mounted on both left and right ends of the front and rear sides of the differential screening box (13); a mounting column (36) is fixedly mounted on the second mounting side plates (35); a snap ring (37) is closed on the mounting column (36); the snap ring (37) is fixedly mounted on the mounting column (36) through a threaded connection between a screw and a bolt; a connecting base (38) is fixedly mounted on the lower end of the snap ring (37); a fixed base (40) is arranged on the lower side of the connecting base (38); the connecting base (38) and the fixed base (40) are connected to each other through two groups of springs (39); two groups of protrusions are fixedly mounted on the fixed base (40) and the protrusions are inserted into the springs (39); the fixed base (40) is fixedly mounted on the supporting leg (2).

7. The laminated multi-stage micro powder sieve according to claim 2, characterized in that: A weighting sheet (41) is mounted on the first polarizing block (11), the shape of the weighting sheet (41) being compatible with the shape of the first polarizing block (11), two groups of second insertion holes (42) being provided on one side of an upper end of the weighting sheet (41), fourth screws (43) being inserted into both groups of the second insertion holes (42), two groups of third screw sleeves (44) being fixedly mounted on one side of an upper end of the first polarizing block (11), the positions of the third screw sleeves (44) being compatible with the positions of the second insertion holes (42), and the fourth screws (43) being mounted in the third screw sleeves (44) by means of threads.

8. The laminated multi-stage micro powder sieve according to claim 1, characterized in that: A third mounting side plate (45) is provided at the lower side of the first mounting side plate (12); the third mounting side plate (45) is fixedly mounted on the differential screening box (13); a second rotating mounting block (46) is rotatably mounted on the third mounting side plate (45); a second polarizing block (47) is fixedly mounted on the second rotating mounting block (46); a second connecting flexible belt (48) is fixedly mounted on the second connecting flexible belt (48); a third flange (49) is fixedly mounted on the second connecting flexible belt (48); a fifth screw (50) is fixedly mounted in an array on the third flange (49); a fourth flange (51) is mounted on the third flange (49); the fifth screw (50) is inserted into A fourth screw sleeve (52) is threadedly mounted at the end of the fifth screw rod (50) in the fourth flange (51); a connecting rotating rod (53) is fixedly mounted on the fourth flange (51); the connecting rotating rod (53) is rotatably mounted on the first mounting block (3); two groups of first limiting rings (54) are fixedly mounted on the connecting rotating rod (53); a first gear (55) is fixedly mounted between the two groups of the first limiting rings (54); two groups of second limiting rings (56) are fixedly mounted on the output shaft of the driving motor (4); a second gear (57) is fixedly mounted between the two groups of the second limiting rings (56); and a transmission gear ring (58) is sleeved on both the first gear (55) and the second gear (57).

9. The laminated multi-stage micro powder sieve according to claim 8, characterized in that: The diameter of the second gear (57) is greater than the diameter of the first gear (55), and the volume and weight of the second polarization block (47) are both smaller than those of the first polarization block (11).

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