A boat-type vibrating screen

Abstract

The present application relates to the technical field of ore screening, and discloses a ship-shaped vibrating grading screen, which comprises two ship screen main bodies, and a sieve plate one and a sieve plate two are arranged between the two ship screen main bodies; the outer shapes of the sieve plate one and the sieve plate two are arc shapes; one end of the sieve plate one and one end of the sieve plate two overlap with each other; the bottoms of the sieve plate one and the sieve plate two are each provided with a plurality of triangular cross beam tables; each group of the plurality of triangular cross beam tables is arranged transversely along the bottom arc lines of the sieve plate one and the sieve plate two; the side surfaces of the two groups of triangular cross beam tables are each provided with a horizontal moving assembly; the horizontal moving assembly drives the triangular cross beam tables to repeatedly move horizontally, so that the sieve plate one and the sieve plate two vibrate to continuously screen materials; the ship-shaped vibrating grading screen can process a large amount of ore screening work, and the screening speed and efficiency are higher; and the sieve plate one and the sieve plate two cooperate to realize grading screening, and the grading screening can accurately classify ores according to the particle sizes of the ores.

Description

Technical Field

[0001] This invention belongs to the field of ore screening technology: specifically, it relates to a ship-shaped vibrating grading screen. Background Technology

[0002] The boat-shaped vibrating grading screen is a machine that uses a vibrating screen surface to classify mixtures of particles of different sizes according to particle size. Through reasonable screen surface inclination angle and screen aperture design, and utilizing the adjustability of the screen surface angle and chain cleaning method, the screening effect is enhanced, ensuring grading accuracy. It is widely used in many industries, including grain, food, chemical, sugar refining, mining, and papermaking, for the screening and grading of raw materials and finished products. Especially in the screening and grading of pelleted feed in feed mills, the boat-shaped vibrating grading screen has been widely used due to its high efficiency and stable performance.

[0003] When screening ores, existing grading screens often encounter problems because the ores are mostly irregularly shaped and sharp. These ores can easily get stuck in the screen holes, hindering the normal passage of other ores and significantly reducing screening efficiency. The ore stuck in the screen holes also causes continuous friction and compression to the screen plate, thus aggravating its wear. This wear not only reduces screening accuracy but may also shorten the screen plate's service life.

[0004] Therefore, the present invention provides a ship-shaped vibrating grading screen. Summary of the Invention

[0005] To overcome the shortcomings of the prior art: to solve at least one technical problem raised in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a ship-shaped vibrating grading screen, which includes a ship screen body. There are two ship screen bodies, and several top beams are fixedly connected between the two ship screen bodies. A screen plate one and a screen plate two are arranged between the two ship screen bodies. Screen plate one is located above screen plate two. The outer shape of screen plate one and screen plate two is arc-shaped. One end of screen plate one and one end of screen plate two overlap each other. Several triangular crossbeam platforms are arranged at the bottom of screen plate one and screen plate two. Each group of several triangular crossbeam platforms is arranged laterally along the arc of the bottom of screen plate one and screen plate two. A transverse moving component is arranged on the side of each group of triangular crossbeam platforms. The transverse moving component is used to drive the two triangular crossbeam platforms to repeatedly move back and forth laterally.

[0007] Preferably, the inner wall of the sieve plate one is provided with a plurality of sieve holes one, and the inner wall of the sieve plate two is provided with a plurality of sieve holes two, wherein the diameter of the sieve holes one is smaller than the diameter of the sieve holes two.

[0008] Preferably, the movable component includes multiple fixed side seats, which are respectively fixedly installed on the side of the ship screen body. Each fixed side seat has an inner slider slidably connected to its inner wall. One end of each inner slider is fixedly connected to a movable plate. Several connecting parts are fixedly connected to the bottom of the movable plate. A transverse moving rod is fixedly connected to one side of each triangular crossbeam platform. The transverse moving rod is fixedly connected to the connecting parts. Multiple transverse moving slots are symmetrically opened on the side of the ship screen body. Each transverse moving rod is slidably connected to and adapted to each transverse moving slot. A drive component is provided on one side of the movable plate to drive the inner slider to slide repeatedly inside the fixed side seat.

[0009] Preferably, the drive assembly includes a fixed platform, which is fixedly installed between the tops of the two top beams. A dual-axis motor is fixedly installed directly above the fixed platform. A rotating rod is fixedly connected to both ends of the output shaft of the dual-axis motor. An elliptical block is fixedly connected to both ends of the rotating rod. An eccentric rod is fixedly connected to the eccentric part of each of the two elliptical blocks. A double-end hinge rod is hinged to the outer wall of the eccentric rod. A hinge seat is hinged to the end of the double-end hinge rod away from the eccentric rod. The hinge seat is fixedly installed on the top of the movable plate.

[0010] Preferably, the major axis of the elliptical block is the same as the length of the inner groove of the fixed side seat, and the length of the inner groove of the fixed side seat is the same as the length of the inner wall of the transverse groove.

[0011] Preferably, a transmission ring is fixedly connected to the outer wall of each of the two rotating rods, a transmission belt is connected to the outer wall of the transmission ring, a transmission ring is connected to the end of the transmission belt away from the transmission ring, a rotating rod is fixedly connected to the inner wall of the transmission ring, the two ends of the rotating rod are fixedly connected to two other elliptical blocks, and the outer wall of the rotating rod is rotatably connected to the inner wall of the two ship screen bodies.

[0012] Preferably, both sides of screen plate one and screen plate two are fixedly connected to external rods, and multiple opening slots are opened on the side of the main body of the ship screen. Lifting sliders are fixedly connected to the outer walls of the external rods. The lifting sliders are slidably connected to the opening slots and are mutually adapted. A damping rod is fixedly connected to the top of the lifting slider. The end of the damping rod away from the lifting slider is fixedly connected to the top of the inner side of the opening slot. A return spring is provided inside the damping rod. The two ends of the return spring are fixedly connected to the top of the lifting slider and the top of the inner side of the opening slot, respectively.

[0013] Preferably, both sides of sieve plate one and sieve plate two are fixedly connected with anti-overflow plates.

[0014] Preferably, two external seats are fixedly installed on the sides of both ship screen bodies, and multiple rubber shock-absorbing springs are fixedly connected to the bottom of each external seat. A base plate is fixedly connected between the bottoms of the multiple rubber shock-absorbing springs.

[0015] Preferably, a collection box 1, a collection box 2, and a collection box 3 are provided between the two base plates. Collection box 1 is located directly below the sieve plate 1, collection box 2 is located directly below the sieve plate 2, and collection box 3 is located directly below the outlet of the sieve plate 2.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The ship-shaped vibrating grading screen of the present invention drives the triangular crossbeam platform to move horizontally and laterally repeatedly through the transverse moving component, thereby causing the screen plate one and screen plate two to vibrate and continuously screen materials. It can handle the screening of a large amount of ore, and the screening speed and efficiency are higher. Furthermore, the grading screening is achieved through the cooperation of screen plate one and screen plate two, and the grading screening can accurately classify the ore according to the particle size.

[0018] 2. The ship-shaped vibrating grading screen of the present invention can dynamically clean the screen holes by moving the triangular crossbeam platform. In particular, for ores that are easy to get stuck in the holes due to irregular shape, the ore is forced to be discharged from the screen holes through the squeezing action, ensuring that the screen holes are unobstructed and the ore passes through the screen plate more smoothly, thereby improving the screening efficiency and increasing the processing capacity. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional view of the entire invention;

[0021] Figure 2 This is a schematic diagram of the structure of the main body of the ship screen in this invention;

[0022] Figure 3 This is a schematic diagram of the structure of the anti-overflow plate in this invention;

[0023] Figure 4 This is a schematic diagram of one part of the sieve plate in this invention;

[0024] Figure 5 This is a schematic diagram of the lifting slider structure in this invention;

[0025] Figure 6 This is a schematic diagram of the structure at the triangular crossbeam platform in this invention;

[0026] Figure 7 This is a schematic diagram of the structure at the elliptical block in this invention;

[0027] Figure 8 This is a schematic diagram of the structure at the movable plate in this invention;

[0028] In the diagram: 1. Main body of the ship screen; 2. Top beam frame; 3. Screen plate one; 4. Screen hole one; 5. Screen plate two; 6. Screen hole two; 7. Overflow plate; 8. Triangular crossbeam platform; 9. External rod; 10. Lifting slider; 11. Opening slot; 12. Damping rod; 13. Return spring; 14. Horizontal movement rod; 15. Horizontal movement slot; 16. Fixed platform; 17. Dual-axis motor; 18. Rotating rod one; 19. Elliptical block; 20. Double-end hinge rod; 21. Eccentric rod; 22. Hinge seat; 23. Moving plate; 24. Connecting piece; 25. Inner slider; 26. Fixed side seat; 27. Transmission ring one; 28. Transmission belt; 29. ​​Transmission ring two; 30. Rotating rod two; 31. External seat; 32. Rubber shock-absorbing spring; 33. Base plate platform; 34. Collection box one; 35. Collection box two; 36. Collection box three. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] like Figures 1 to 8 As shown, the present invention provides a technical solution: a ship-shaped vibrating grading screen, including a ship screen body 1, there are two ship screen bodies 1, and several top beams 2 are fixedly connected between the two ship screen bodies 1. A screen plate 1 3 and a screen plate 2 5 are arranged between the two ship screen bodies 1. The screen plate 1 3 is located above the screen plate 2 5. The screen plate 1 3 and the screen plate 2 5 are arc-shaped. One end of the screen plate 1 3 and one end of the screen plate 2 5 overlap each other. Several triangular crossbeam platforms 8 are arranged at the bottom of both the screen plate 1 3 and the screen plate 2 5. The several triangular crossbeam platforms 8 are arranged laterally along the arc of the bottom of the screen plate 1 3 and the screen plate 2 5. A transverse moving component is arranged on the side of each triangular crossbeam platform 8. The transverse moving component is used to drive the triangular crossbeam platform 8 to repeatedly move back and forth laterally.

[0031] During operation: The ore to be screened is fed from the top of the two main screen bodies 1. The ore will continuously fall onto the upper surface of screen plate 1 3. At this time, the transverse movement component is activated, which drives two sets of several triangular crossbeam platforms 8 to move horizontally and laterally repeatedly. Since the multiple triangular crossbeam platforms 8 are arranged horizontally along the bottom arc of screen plate 1 3 and screen plate 2 5, according to the arc shape of screen plate 1 3 and screen plate 2 5, screen plate 1 3 and screen plate 2 5 can be repeatedly squeezed during the horizontal movement of the triangular crossbeam platforms 8, so that screen plate 1 3 and screen plate 2 5 can move horizontally and vertically repeatedly. This allows screen plate 1 3 and screen plate 2 5 to complete the vibration process. When screen plate 1 3 vibrates, the ore continuously rolls down the slope. During the rolling process, the ore that can pass through the screen holes of screen plate 1 3 is screened out from the bottom, and the remaining ore will roll onto the upper surface of screen plate 2 5. Similarly, the remaining ore on screen plate 25 continues to be screened by rolling. In the above embodiment, the triangular beam platform 8 is driven by the transverse moving component to move horizontally and laterally repeatedly, so that screen plate 1 and screen plate 25 vibrate to continuously screen the material. This process can handle the screening of a large amount of ore, and the screening speed and efficiency are higher. Furthermore, the grading screening is achieved by the cooperation of screen plate 1 and screen plate 25. The grading screening can accurately classify the ore according to the particle size. In addition, when several triangular beam platforms 8 move along the bottom arc of screen plate 1 and screen plate 25, the movement of the triangular beam platforms 8 can dynamically clean the screen holes. In particular, for those ores that are easy to get stuck in the holes due to irregular shape, the ore is forced to be discharged from the screen holes through the squeezing action, ensuring that the screen holes are unobstructed and the ore passes through the screen plate more smoothly, thereby improving the screening efficiency and increasing the processing capacity.

[0032] like Figures 3 to 4 As shown, the inner wall of the sieve plate 3 has several sieve holes 4, and the inner wall of the sieve plate 5 has several sieve holes 6. The diameter of the sieve holes 4 is smaller than the diameter of the sieve holes 6.

[0033] During operation: As the ore rolls down the surface of screen plate 3, the ore that fits the size of screen hole 4 will fall directly from the bottom of screen plate 3 for the first screening. The remaining ore will gradually roll down to the upper surface of screen plate 5. At this time, the ore that fits the size of screen hole 6 will fall directly from the bottom of screen plate 5 for the second screening. This grading screening can work continuously and can handle the screening of a large amount of ore, with higher screening speed and efficiency.

[0034] like Figures 5 to 7As shown, the moving component includes multiple fixed side seats 26, which are fixedly installed on the side of the ship screen body 1. Each fixed side seat 26 has an inner slider 25 slidably connected to its inner wall. One end of each inner slider 25 is fixedly connected to a moving plate 23. Several connecting pieces 24 are fixedly connected to the bottom of the moving plate 23. A transverse moving rod 14 is fixedly connected to one side of each triangular crossbeam platform 8. The transverse moving rod 14 is fixedly connected to the connecting piece 24. Multiple transverse moving grooves 15 are symmetrically opened on the side of the ship screen body 1. Each transverse moving rod 14 is slidably connected to each transverse moving groove 15 and is adapted to each other. A driving component is provided on one side of the moving plate 23 for driving the inner slider 25 to slide repeatedly inside the fixed side seat 26.

[0035] During operation: When the drive assembly is activated, it causes the inner slider 25 to slide repeatedly inside the fixed side seat 26. The inner slider 25 causes the moving plate 23 to move repeatedly laterally, and the moving plate 23 causes multiple transverse rods 14 to move repeatedly laterally through multiple connecting parts 24. This enables multiple triangular beam platforms 8 to move repeatedly laterally, squeezing the bottoms of screen plate 1 and screen plate 2 to complete the vibration process. The sliding relationship between the transverse rods 14 and the transverse grooves 15 fixes the position of the multiple triangular beam platforms 8 and limits the distance of the triangular beam platforms 8 during the sliding process, so that the entire device maintains a relatively stable motion state.

[0036] like Figures 6 to 7 As shown, the drive assembly includes a fixed platform 16, which is fixedly installed between the tops of the two top beam frames 2. A dual-axis motor 17 is fixedly installed directly above the fixed platform 16. Rotating rods 18 are fixedly connected to the output shafts at both ends of the dual-axis motor 17. Elliptical blocks 19 are fixedly connected to both ends of the rotating rods 18. Eccentric rods 21 are fixedly connected to the eccentric parts of the two elliptical blocks 19. A double-end hinge rod 20 is hinged to the outer wall of the eccentric rod 21. A hinge seat 22 is hinged to the end of the double-end hinge rod 20 away from the eccentric rod 21. The hinge seat 22 is fixedly installed on the top of the moving plate 23.

[0037] During operation: When the dual-axis motor 17 is started, its output shaft will drive the elliptical block 19 to rotate through the rotating rod 18. When the elliptical block 19 rotates, the eccentric rod 21 on its outer wall will rotate around the center point of the elliptical block 19. During the rotation of the eccentric rod 21, since the double-end hinge rod 20 is hinged between its outer wall and the eccentric rod 21, the rotation of the eccentric rod 21 will pull the hinge seat 22 to move through the double-end hinge rod 20. Since the moving plate 23 is restricted by the inner slider 25 and the fixed side seat 26, when the moving plate 23 and the hinge seat 22 are moved by the pulling force of the eccentric rod 21, they will always maintain horizontal lateral movement, thereby realizing the effect of horizontal lateral movement of the triangular beam platform 8.

[0038] like Figures 6 to 8 As shown, the major axis of the elliptical block 19 is the same as the length of the inner groove of the fixed side seat 26, and the length of the inner groove of the fixed side seat 26 is the same as the length of the inner wall of the transverse groove 15.

[0039] During operation: By setting the major axis length of the elliptical block 19 to be the same as the length of the inner sliding groove of the fixed side seat 26, when the elliptical block 19 rotates half a turn, the inner slider 25 slides from one end of the fixed side seat 26 to the other end, and the transverse rod 14 slides from one end of the transverse groove 15 to the other end. When the elliptical block 19 continues to rotate half a turn, the inner slider 25 and the transverse rod 14 are reset, thereby enabling the triangular crossbeam platform 8 to complete one transverse movement. This process is repeated to achieve the effect of continuous vibration of the screen plate 1 3 and the screen plate 2 5.

[0040] like Figures 6 to 7 As shown, transmission rings 27 are fixedly connected to the outer walls of the two rotating rods 18. Transmission belts 28 are connected to the outer walls of the transmission rings 27. Transmission rings 29 are connected to the end of the transmission belts 28 away from the transmission rings 27. Rotating rods 30 are fixedly connected to the inner walls of the transmission rings 29. The two ends of the rotating rods 30 are fixedly connected to the other two elliptical blocks 19. The outer walls of the rotating rods 30 are rotatably connected to the inner walls of the two ship screen bodies 1.

[0041] During operation: The dual-axis motor 17 drives the rotating rod 18 to rotate, which causes several triangular crossbeams 8 at the bottom of the screen plate 3 to move laterally repeatedly. When the rotating rod 18 rotates, it drives the transmission ring 29 to rotate through the transmission ring 27 and the transmission belt 28. The transmission ring 29 drives the rotating rod 30 to rotate. During the rotation, the rotating rod 30 can drive the elliptical block 19 at the screen plate 5 to rotate, thus achieving the effect of driving several triangular crossbeams 8 at the bottom of the screen plate 5 to move laterally repeatedly.

[0042] like Figures 4 to 5 As shown, external rods 9 are fixedly connected to both sides of screen plate 1 3 and screen plate 2 5. Multiple opening slots 11 are opened on the side of the main body of the ship screen 1. Lifting sliders 10 are fixedly connected to the outer wall of the external rods 9. The lifting sliders 10 and the opening slots 11 are slidably connected and adapted to each other. A damping rod 12 is fixedly connected to the top of the lifting slider 10. The end of the damping rod 12 away from the lifting slider 10 is fixedly connected to the top of the inner side of the opening slot 11. A return spring 13 is provided inside the damping rod 12. The two ends of the return spring 13 are fixedly connected to the top of the lifting slider 10 and the top of the inner side of the opening slot 11, respectively.

[0043] During operation: When sieve plate 3 and sieve plate 5 are subjected to the force of the lateral movement of the triangular crossbeam platform 8 and move upward, sieve plate 3 and sieve plate 5 will drive the lifting slider 10 to slide in the inner wall of the opening groove 11. When the lifting slider 10 slides upward, it will continuously squeeze the return spring 13 to cause it to undergo elastic deformation. When the triangular crossbeam platform 8 returns to its original position, the lifting slider 10 slides downward and returns to its original position inside the opening groove 11 under the action of the return spring 13. The external rod 9 will then reset sieve plate 3 and sieve plate 5. This repeated movement achieves the effect of continuous vibration of sieve plate 3 and sieve plate 2.

[0044] like Figures 3 to 4 As shown, anti-overflow plates 7 are fixedly connected to both sides of sieve plate 3 and sieve plate 5.

[0045] During operation: The anti-overflow plates 7 set on both sides of screen plate 1 3 and screen plate 2 5 prevent the ore from impacting the main body of the ship screen 1 during the rolling process, thus increasing wear. At the same time, they also prevent material from leaking to the bottom of the screen, thereby avoiding the situation of material spillage.

[0046] like Figures 1 to 2 As shown, two external seats 31 are fixedly installed on the sides of the two ship screen bodies 1. Multiple rubber shock-absorbing springs 32 are fixedly connected to the bottom of each external seat 31. A base plate 33 is fixedly connected between the bottoms of the multiple rubber shock-absorbing springs 32.

[0047] During operation: During the entire screening process, the dual-shaft motor 17 will drive the entire device to vibrate slightly. By setting multiple rubber shock-absorbing springs 32 between the bottom of the two ship screen bodies 1 and the base plate 33, the vibration of the entire screening device is reduced, which increases the service life of the entire screening device and also reduces some of the noise generated during the screening process.

[0048] like Figure 1 As shown, a collection box 1 34, a collection box 2 35, and a collection box 36 are provided between the two base plates 33. The collection box 1 34 is located directly below the sieve plate 1 3, the collection box 2 35 is located directly below the sieve plate 2 5, and the collection box 3 36 is located directly below the outlet of the sieve plate 2 5.

[0049] During operation: As the ore rolls down the surface of screen plate 3, ore that fits the size of screen hole 4 will fall directly from the bottom of screen plate 3 into collection box 34 for collection. The volume of ore collected here is relatively small. As the ore rolls down the surface of screen plate 5, ore that fits the size of screen hole 6 will fall directly from the bottom of screen plate 5. The volume of ore collected here is moderate. Finally, ore that does not pass through screen holes 4 and 6 will slide from the outlet of screen plate 5 into the interior of collection box 36. The volume of ore collected here is relatively large.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship-shaped vibrating grading screen, comprising a ship-shaped screen body (1), characterized in that: There are two main bodies (1) of the ship screen. Several top beams (2) are fixedly connected between the two main bodies (1). Screen plate one (3) and screen plate two (5) are set between the two main bodies (1). Screen plate one (3) is located above screen plate two (5). Screen plate one (3) and screen plate two (5) are arc-shaped. One end of screen plate one (3) and one end of screen plate two (5) overlap each other. Several triangular crossbeams are set at the bottom of screen plate one (3) and screen plate two (5). (8) Several triangular beam platforms (8) are arranged horizontally along the bottom arc of screen plate one (3) and screen plate two (5). The sides of the triangular beam platforms (8) are equipped with transverse moving components. The transverse moving components are used to drive the triangular beam platforms (8) to repeatedly move back and forth horizontally. During the horizontal transverse movement, the triangular beam platforms (8) squeeze screen plate one (3) and screen plate two (5), causing screen plate one (3) and screen plate two (5) to vibrate and continuously screen the material, while squeezing out the ore stuck in the screen holes. The inner wall of the surface of sieve plate 1 (3) has several sieve holes 1 (4), and the inner wall of the surface of sieve plate 2 (5) has several sieve holes 2 (6). The diameter of sieve hole 1 (4) is smaller than the diameter of sieve hole 2 (6). The moving component includes multiple fixed side seats (26), which are fixedly installed on the side of the ship screen body (1). Each fixed side seat (26) has an inner slider (25) slidably connected to its inner wall. One end of the inner slider (25) is fixedly connected to a moving plate (23). Several connecting pieces (24) are fixedly connected to the bottom of the moving plate (23). A transverse rod (14) is fixedly connected to one side of each triangular crossbeam platform (8). The transverse rod (14) is fixedly connected to the connecting piece (24). Multiple transverse grooves (15) are symmetrically opened on the side of the ship screen body (1). Each transverse rod (14) is slidably connected to each transverse groove (15) and they are mutually adapted. A driving component is provided on one side of the moving plate (23) for driving the inner slider (25) to slide repeatedly inside the fixed side seat (26). The drive assembly includes a fixed platform (16), which is fixedly installed between the tops of the two top beams (2). A dual-axis motor (17) is fixedly installed directly above the fixed platform (16). The output shafts at both ends of the dual-axis motor (17) are fixedly connected to a rotating rod (18). Elliptical blocks (19) are fixedly connected to both ends of the rotating rod (18). An eccentric rod (21) is fixedly connected to the eccentric part of each of the two elliptical blocks (19). A double-end hinge rod (20) is hinged to the outer wall of the eccentric rod (21). A hinge seat (22) is hinged to the end of the double-end hinge rod (20) away from the eccentric rod (21). The hinge seat (22) is fixedly installed on the top of the movable plate (23). The length of the major axis of the elliptical block (19) is the same as the length of the inner groove of the fixed side seat (26), and the length of the inner groove of the fixed side seat (26) is the same as the length of the inner wall of the transverse groove (15).

2. The ship-shaped vibrating grading screen according to claim 1, characterized in that: The outer walls of the two rotating rods (18) are fixedly connected to the transmission rings (27). The outer walls of the transmission rings (27) are connected to the transmission belt (28). The end of the transmission belt (28) away from the transmission rings (27) is connected to the transmission ring (29). The inner walls of the transmission rings (29) are fixedly connected to the rotating rods (30). The two ends of the rotating rods (30) are fixedly connected to the other two elliptical blocks (19). The outer walls of the rotating rods (30) are rotatably connected to the inner walls of the two ship screen bodies (1).

3. The ship-shaped vibrating grading screen according to claim 2, characterized in that: Both sides of the screen plate 1 (3) and screen plate 2 (5) are fixedly connected with external rods (9). The sides of the ship screen body (1) are provided with multiple opening slots (11). The outer walls of the external rods (9) are fixedly connected with lifting sliders (10). The lifting sliders (10) and the opening slots (11) are slidably connected and adapted to each other. The top of the lifting sliders (10) is fixedly connected with damping rods (12). The end of the damping rods (12) away from the lifting sliders (10) is fixedly connected to the top of the inner side of the opening slots (11). The damping rods (12) are provided with a return spring (13). The two ends of the return springs (13) are fixedly connected to the top of the lifting sliders (10) and the top of the inner side of the opening slots (11), respectively.

4. The ship-shaped vibrating grading screen according to claim 3, characterized in that: Both sides of sieve plate one (3) and sieve plate two (5) are fixedly connected with anti-overflow plates (7).

5. The ship-shaped vibrating grading screen according to claim 4, characterized in that: Two external seats (31) are fixedly installed on the sides of the two ship screen bodies (1). Multiple rubber shock-absorbing springs (32) are fixedly connected to the bottom of the external seats (31). A base plate (33) is fixedly connected between the bottoms of the multiple rubber shock-absorbing springs (32).

6. The ship-shaped vibrating grading screen according to claim 5, characterized in that: Collection box 1 (34), collection box 2 (35) and collection box 3 (36) are provided between the two base plates (33). Collection box 1 (34) is located directly below sieve plate 1 (3), collection box 2 (35) is located directly below sieve plate 2 (5), and collection box 3 (36) is located directly below the outlet of sieve plate 2 (5).

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