Ship-shaped vibration classifying screen

Abstract

The invention relates to the technical field of ore screening, and discloses a ship-shaped vibration classifying screen which comprises two ship-shaped screen bodies, a first screen plate and a second screen plate are arranged between the two ship-shaped screen bodies, the first screen plate and the second screen plate are arc-shaped, one end of the first screen plate and one end of the second screen plate are overlapped, and the other end of the first screen plate and the other end of the second screen plate are overlapped. The bottoms of the first sieve plate and the second sieve plate are each provided with a plurality of triangular beam tables, the triangular beam tables in each group are transversely arranged along the arc lines of the bottoms of the first sieve plate and the second sieve plate correspondingly, and transverse moving assemblies are arranged on the side faces of the two groups of triangular beam tables and drive the triangular beam tables to repeatedly move horizontally and transversely. And therefore, the screening work of a large number of ores can be treated, the screening speed and efficiency are higher, classified screening is achieved under cooperation of the first screening plate and the second screening plate, and accurate classification can be conducted according to the particle size of the ores through classified screening.

Description

Technical Field

[0001] The invention belongs to the technical field of ore screening, and specifically relates to a ship-shaped vibrating grading screen. Background Art

[0002] The ship-type vibrating grading screen is a machine that uses a vibrating screen surface to grade a mixture of particles of different sizes according to particle size. Through the reasonable design of the screen surface inclination angle and the screen mesh aperture, and the use of the adjustability of the screen surface angle, and the chain cleaning screen surface, the screening effect is enhanced to ensure the grading accuracy. It is widely used in many industries, including the screening and grading of raw materials and finished products in grain, food, chemical, sugar, mining, papermaking and other industries. Especially in the screening and grading of pellet feed in feed factories, the ship-type vibrating grading screen has been widely used due to its high efficiency and stable performance.

[0003] When the existing grading screen is screening ore, since most of the ores are irregular in shape, the sharp ores are easy to get stuck in the sieve holes of the sieve plate during screening. When the ore is stuck in the sieve holes, it will hinder the normal passage of other ores on the sieve plate, resulting in a significant reduction in screening efficiency. The ore stuck in the sieve holes will cause continuous friction and extrusion on the sieve plate, thereby aggravating the wear of the sieve plate. The wear of the sieve plate will not only reduce the screening accuracy, but may also shorten the service life of the sieve plate.

[0004] To this end, the present invention provides a ship-shaped vibrating grading screen. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a ship-type vibrating grading screen described in the present invention includes a ship screen body, the number of which is two, a plurality of top beam frames are fixedly connected between the two ship screen bodies, a sieve plate one and a sieve plate two are arranged between the two ship screen bodies, the sieve plate one is located above the sieve plate two, the outer shape of the sieve plate one and the sieve plate two are arc-shaped, one end of the sieve plate one overlaps with one end of the sieve plate two, a plurality of triangular crossbeam platforms are arranged at the bottom of the sieve plate one and the sieve plate two, each group of the plurality of triangular crossbeam platforms are arranged laterally along the arc lines of the bottom of the sieve plate one and the sieve plate two, and a transverse movement component is arranged on the side of the two groups of triangular crossbeam platforms, and the transverse movement component is used to drive the two triangular crossbeam platforms to repeatedly move back and forth laterally.

[0007] Preferably, a plurality of first sieve holes are provided on the inner wall of the surface of the sieve plate 1, and a plurality of second sieve holes are provided on the inner wall of the surface of the sieve plate 2, and the aperture size of the first sieve hole is smaller than the aperture size of the second sieve hole.

[0008] Preferably, the movable component includes a plurality of fixed side seats, and the plurality of fixed side seats are respectively fixedly installed on the sides of the ship screen body, the inner wall of each fixed side seat is slidably connected with an inner sliding block, one end of the inner sliding block is fixedly connected with a movable plate, the bottom of the movable plate is fixedly connected with a plurality of connecting parts, one side of each triangular beam platform is fixedly connected with a transverse rod, the transverse rod and the connecting parts are fixedly connected, a plurality of transverse grooves are symmetrically provided on the side of the ship screen body, each transverse rod is respectively slidably connected with each transverse groove and adapted to each other, and a driving component for driving the inner sliding block to slide repeatedly inside the fixed side seat is provided on one side of the movable plate.

[0009] Preferably, the driving 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, and the output shafts at both ends of the dual-axis motor are fixedly connected to a rotating rod one, and both ends of the rotating rod one are fixedly connected to elliptical blocks, and the eccentric points of the two elliptical blocks are fixedly connected to eccentric rods, and the outer wall of the eccentric rod is hinged with a double-end hinged rod, and the end of the double-end hinged rod away from the eccentric rod is hinged with a hinged seat, and the hinged seat is fixedly installed on the top of the movable plate.

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

[0011] Preferably, the outer walls of the two rotating rods are fixedly connected to the transmission ring 1, the outer wall of the transmission ring 1 is transmission-connected to the transmission belt, the end of the transmission belt away from the transmission ring 1 is transmission-connected to the transmission ring 2, the inner wall of the transmission ring 2 is fixedly connected to the rotating rod 2, the two ends of the rotating rod 2 are fixedly connected to the other two elliptical blocks, and the outer wall of the rotating rod 2 is rotationally connected to the inner walls of the two ship screen bodies.

[0012] Preferably, both sides of sieve plate one and sieve plate two are fixedly connected with external rods, the sides of the ship sieve body are provided with multiple open grooves, the outer walls of the external rods are fixedly connected with lifting sliders, the lifting sliders and the open grooves are slidably connected and adapted to each other, the top of the lifting slider is fixedly connected with a damping rod, one end of the damping rod away from the lifting slider is fixedly connected to the inner top of the open groove, a return spring is arranged inside the damping rod, and the two ends of the return spring are respectively fixedly connected to the top of the lifting slider and the inner top of the open groove.

[0013] Preferably, anti-overflow plates are fixedly connected to both sides of sieve plate 1 and sieve plate 2.

[0014] Preferably, two external seats are fixedly installed on the sides of the two ship screen bodies, the bottoms of the external seats are fixedly connected with a plurality of rubber shock-absorbing springs, and the bottoms of the plurality of rubber shock-absorbing springs are fixedly connected with a bottom plate platform.

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

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

[0017] 1. The ship-shaped vibrating grading screen described in the present invention drives the triangular crossbeam platform to repeatedly move horizontally through the transverse movement component, so that the screen plate 1 and the screen plate 2 vibrate to continuously screen the material. It can handle the screening of a large number of ores, and the screening speed and efficiency are higher. The grading screening is realized by the cooperation of the screen plate 1 and the screen plate 2, and the grading screening can accurately classify the ore according to the particle size.

[0018] 2. The ship-shaped vibrating grading screen described in the present invention can dynamically clean the sieve holes through the movement of the triangular crossbeam platform, especially for those ores that are easily stuck in the holes due to their irregular shapes. Through the extrusion effect, the ore is forced to be discharged from the sieve holes, ensuring that the sieve holes are unobstructed and the ore passes through the sieve plate more smoothly, thereby improving the screening efficiency and increasing the processing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is an overall stereogram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the main body of the ship screen in the present invention;

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

[0023] Figure 4 It is a structural schematic diagram of a sieve plate in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the lifting slider in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the triangular beam platform in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the ellipse block in the present invention;

[0027] Figure 8 It is a structural schematic diagram of the movable plate in the present invention;

[0028] In the figure: 1. Ship screen body; 2. Top beam frame; 3. Screen plate 1; 4. Screen hole 1; 5. Screen plate 2; 6. Screen hole 2; 7. Anti-overflow plate; 8. Triangular crossbeam platform; 9. External rod; 10. Lifting slider; 11. Opening slot; 12. Damping rod; 13. Reset spring; 14. Transverse rod; 15. Transverse slot; 16. Fixed platform; 17. Double-axis motor; 18. Rotating rod 1; 19. Elliptical block; 20. Double-end hinged rod; 21. Eccentric rod; 22. Articulated seat; 23. Moving plate; 24. Connecting piece; 25. Inner slider; 26. Fixed side seat; 27. Transmission ring 1; 28. Transmission belt; 29. ​​Transmission ring 2; 30. Rotating rod 2; 31. External seat; 32. Rubber shock-absorbing spring; 33. Bottom plate platform; 34. Collecting box 1; 35. Collecting box 2; 36. Collecting box 3. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] like Figures 1 to 8 As shown, the present invention provides a technical solution: a ship-type vibrating grading screen, comprising a ship screen body 1, wherein there are two ship screen bodies 1, a plurality of top beam frames 2 are fixedly connected between the two ship screen bodies 1, a sieve plate 1 3 and a sieve plate 2 5 are arranged between the two ship screen bodies 1, the sieve plate 1 3 is located above the sieve plate 2 5, the outer shape of the sieve plate 1 3 and the sieve plate 2 5 is an arc shape, one end of the sieve plate 1 3 overlaps with one end of the sieve plate 2 5, a plurality of triangular crossbeam platforms 8 are arranged at the bottom of the sieve plate 1 3 and the sieve plate 2 5, and the plurality of triangular crossbeam platforms 8 are arranged laterally along the arc lines at the bottom of the sieve plate 1 3 and the sieve plate 2 5, respectively, and a transverse movement component is arranged on the side of the triangular crossbeam platform 8, and the transverse movement component is used to drive the triangular crossbeam platform 8 to repeatedly perform transverse back and forth movement.

[0031] During operation: the ore to be screened is loaded from the top of the two ship screen bodies 1, and the ore will continuously fall to the upper surface of the screen plate 3 first. At this time, the transverse movement component is started, and the transverse movement component will drive two groups of several triangular beam platforms 8 to repeatedly move horizontally and transversely. Moreover, since multiple triangular beam platforms 8 are arranged horizontally along the arc lines at the bottom of the screen plate 1 3 and the screen plate 2 5 respectively, according to the arc-shaped outer shape of the screen plate 1 3 and the screen plate 2 5, during the repeated horizontal and transverse movement of the triangular beam platforms 8, the screen plate 1 3 and the screen plate 2 5 can be repeatedly squeezed, so that the screen plate 1 3 and the screen plate 2 5 repeatedly move horizontally and vertically, so that the screen plate 1 3 and the screen plate 2 5 can complete the vibration process, and when the screen plate 1 3 vibrates, the ore continuously rolls down along the slope, and the ore that can pass through the sieve holes of the screen plate 1 3 during the rolling process is screened out from the bottom, and the rest of the ore rolls down to the upper surface of the screen plate 2 5. Grading screening is performed. Similarly, the remaining ore on the sieve plate 2 5 continues to be rolled down and screened. Through the above embodiment, the triangular beam platform 8 is driven by the transverse movement component to repeatedly move horizontally, so that the sieve plates 1 3 and 2 5 vibrate to perform a continuous screening process, which can handle the screening of a large number of ores, and the screening speed and efficiency are higher. Grading screening is achieved through the cooperation of the sieve plates 1 3 and 2 5. The grading screening can be accurately classified according to the particle size of the ore. In addition, when several triangular beam platforms 8 move along the bottom arc of the sieve plates 1 3 and 2 5, the movement of the triangular beam platforms 8 can dynamically clean the sieve holes, especially for those ores that are easily stuck due to irregular shapes. Through the extrusion effect, the ore is forced to be discharged from the sieve holes, ensuring that the sieve holes are unobstructed and the ore passes through the sieve plate more smoothly, thereby improving the screening efficiency and increasing the processing capacity.

[0032] like Figure 3 to Figure 4 As shown, the inner wall of the surface of the sieve plate 1 3 is provided with a plurality of sieve holes 1 4 , and the inner wall of the surface of the sieve plate 2 5 is provided with a plurality of sieve holes 2 6 , and the aperture size of the sieve holes 1 4 is smaller than the aperture size of the sieve holes 2 6 .

[0033] During operation: as the ore rolls down on the surface of the sieve plate 3, the ore that matches the aperture size of the sieve hole 4 will directly fall out from the bottom of the sieve plate 3 for the first screening, and the remaining ore will gradually roll down to the upper surface of the sieve plate 5. At this time, the ore that matches the aperture size of the sieve hole 6 will directly fall out from the bottom of the sieve plate 5 for the second screening. This graded screening can work continuously, can handle the screening of a large amount of ore, and has a higher screening speed and efficiency.

[0034] like Figures 5 to 7As shown, the movable assembly includes a plurality of fixed side seats 26, and the plurality of fixed side seats 26 are respectively fixedly installed on the sides of the ship screen body 1, the inner wall of each fixed side seat 26 is slidably connected with an inner slider 25, one end of the inner slider 25 is fixedly connected with a movable plate 23, and the bottom of the movable plate 23 is fixedly connected with a plurality of connecting members 24, one side of each triangular crossbeam platform 8 is fixedly connected with a transverse rod 14, and the transverse rod 14 and the connecting member 24 are fixedly connected, and a plurality of transverse grooves 15 are symmetrically provided on the side of the ship screen body 1, and each transverse rod 14 is respectively slidably connected with each transverse groove 15 and adapted to each other, and a driving assembly for driving the inner slider 25 to slide repeatedly inside the fixed side seat 26 is provided on one side of the movable plate 23.

[0035] During operation: start the driving assembly, which will drive the inner sliding block 25 to slide repeatedly inside the fixed side seat 26, and the inner sliding block 25 will drive the movable plate 23 to move horizontally repeatedly, and the movable plate 23 will drive the multiple transverse rods 14 to move horizontally repeatedly through the multiple connecting parts 24, thereby driving the multiple triangular crossbeam platforms 8 to move horizontally repeatedly, squeezing the bottom of the sieve plate 1 3 and the sieve plate 2 5 to complete the vibration process, wherein the sliding relationship between the transverse rod 14 and the transverse groove 15 can fix the position of the multiple triangular crossbeam platforms 8 while limiting the distance of the triangular crossbeam platforms 8 during the sliding process, so that the entire device maintains a relatively stable state of motion.

[0036] like Figure 6 to Figure 7 As shown, the driving assembly includes a fixed platform 16, which is fixedly installed between the tops of the two top beams 2, and a double-axis motor 17 is fixedly installed directly above the fixed platform 16. The output shafts at both ends of the double-axis motor 17 are fixedly connected to a rotating rod 18, and both ends of the rotating rod 18 are fixedly connected to elliptical blocks 19. The eccentric parts of the two elliptical blocks 19 are fixedly connected to eccentric rods 21, and the outer wall of the eccentric rod 21 is hinged with a double-end hinged rod 20, and the end of the double-end hinged rod 20 away from the eccentric rod 21 is hinged with an hinge seat 22, and the hinge seat 22 is fixedly installed on the top of the movable plate 23.

[0037] During operation: start the dual-axis motor 17, and 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 with the center point of the elliptical block 19 as the axis. During the rotation of the eccentric rod 21, since the double-end hinged rod 20 is hinged between its outer wall and it, the eccentric rod 21 will pull the hinge seat 22 to move through the double-end hinged rod 20 when it rotates, and since the movable plate 23 is restricted by the inner slider 25 and the fixed side seat 26, when the movable 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 achieving the effect of horizontal lateral movement of the triangular beam platform 8.

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

[0039] During operation: the long axis length of the elliptical block 19 is set to be the same as the inner slide groove length of the fixed side seat 26. When the elliptical block 19 rotates half a circle, 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 circle, the inner slider 25 and the transverse rod 14 are reset, so that the triangular beam platform 8 completes a transverse movement, and this is repeated to achieve the effect of continuous vibration of the sieve plate 1 3 and the sieve plate 2 5.

[0040] like Figure 6 to Figure 7 As shown, the outer walls of the two rotating rods 18 are fixedly connected with a transmission ring 27, the outer wall of the transmission ring 27 is transmission-connected with a transmission belt 28, the end of the transmission belt 28 away from the transmission ring 27 is transmission-connected with a transmission ring 29, the inner wall of the transmission ring 29 is fixedly connected with a rotating rod 2 30, the two ends of the rotating rod 2 30 are fixedly connected with the other two elliptical blocks 19, and the outer wall of the rotating rod 2 30 is rotationally connected with the inner walls of the two ship screen bodies 1.

[0041] During operation: by starting the dual-axis motor 17, the rotating rod 18 is driven to rotate, so that several triangular beam platforms 8 at the bottom of the screen plate 3 are repeatedly moved horizontally, and when the rotating rod 18 is rotated, the transmission ring 29 is driven to rotate through the transmission ring 1 27 and the transmission belt 28, and the transmission ring 29 drives the rotating rod 2 30 to rotate. During the rotation process, the rotating rod 2 30 can drive the elliptical block 19 at the screen plate 2 5 to rotate, thereby achieving the effect of driving several triangular beam platforms 8 at the bottom of the screen plate 2 5 to repeatedly move horizontally.

[0042] like Figures 4 to 5 As shown, both sides of the sieve plate 1 3 and the sieve plate 2 5 are fixedly connected with external rods 9, the sides of the ship sieve body 1 are provided with a plurality of open grooves 11, the outer walls of the external rods 9 are fixedly connected with lifting sliders 10, the lifting sliders 10 are slidably connected and adapted to each other, the top of the lifting slider 10 is fixedly connected with a damping rod 12, one end of the damping rod 12 away from the lifting slider 10 is fixedly connected to the inner top of the open groove 11, a return spring 13 is arranged inside the damping rod 12, and the two ends of the return spring 13 are respectively fixedly connected to the top of the lifting slider 10 and the inner top of the open groove 11.

[0043] During operation: when sieve plate 1 3 and sieve plate 2 5 are subjected to the force of the lateral movement of the triangular crossbeam platform 8 and move upward, sieve plate 1 3 and sieve plate 2 5 will drive the lifting slider 10 to slide in the inner wall of the opening groove 11 when rising, and the lifting slider 10 will continuously squeeze the reset spring 13 to cause it to undergo elastic deformation when sliding upward, and when the triangular crossbeam platform 8 resets, the lifting slider 10 slides downward inside the opening groove 11 under the action of the reset spring 13 to reset, and resets the sieve plate 1 3 and sieve plate 2 5 through the external rod 9, and repeats this movement, thereby achieving the effect of continuous vibration of sieve plate 1 3 and sieve plate 2 5.

[0044] like Figure 3 to Figure 4 As shown, anti-overflow plates 7 are fixedly connected to both sides of the sieve plate 1 3 and the sieve plate 2 5 .

[0045] During operation: the anti-overflow plates 7 arranged on both sides of the sieve plate 1 3 and the sieve plate 2 5 prevent the ore from colliding with the ship screen body 1 during the rolling process to increase wear, and also prevent the material from leaking to the bottom of the screen, thereby avoiding the occurrence of spillage.

[0046] like Figure 1 to Figure 2 As shown, two external seats 31 are fixedly installed on the sides of the two ship screen bodies 1, and the bottoms of the external seats 31 are fixedly connected with multiple rubber shock-absorbing springs 32, and the bottoms of the multiple rubber shock-absorbing springs 32 are fixedly connected with a bottom plate platform 33.

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

[0048] like Figure 1 As shown, collecting box 1 34, collecting box 2 35 and collecting box 3 36 are arranged between the two bottom plates 33. Collecting box 1 34 is located directly below sieve plate 1 3, collecting box 2 35 is located directly below sieve plate 2 5, and collecting box 3 36 is located directly below the outlet of sieve plate 2 5.

[0049] During operation: when the ore rolls down on the surface of the sieve plate 3, the ore that fits the aperture size of the sieve hole 4 will directly fall from the bottom of the sieve plate 3 to the collecting box 34 for collection, and the volume of the ore collected here is relatively small. When the ore rolls down on the surface of the sieve plate 25, the ore that fits the aperture size of the sieve hole 26 will directly fall from the bottom of the sieve plate 25, and the volume of the ore collected here is moderate. Finally, the ore that does not pass through the sieve holes 4 and 26 will slide from the outlet of the sieve plate 25 to the interior of the collecting box 36, and the volume of the ore collected here is relatively large.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A ship-shaped vibrating grading screen, comprising a ship screen body (1), characterized in that: There are two ship screen bodies (1), a plurality of top beam frames (2) are fixedly connected between the two ship screen bodies (1), a sieve plate 1 (3) and a sieve plate 2 (5) are arranged between the two ship screen bodies (1), the sieve plate 1 (3) is located above the sieve plate 2 (5), the sieve plate 1 (3) and the sieve plate 2 (5) are arc-shaped, one end of the sieve plate 1 (3) overlaps with one end of the sieve plate 2 (5), a plurality of triangular cross beam platforms (8) are arranged at the bottom of the sieve plate 1 (3) and the sieve plate 2 (5), and the plurality of triangular cross beam platforms (8) are arranged transversely along the arc lines at the bottom of the sieve plate 1 (3) and the sieve plate 2 (5), respectively, and a transverse movement component is arranged on the side of the triangular cross beam platform (8), and the transverse movement component is used to drive the triangular cross beam platform (8) to repeatedly perform transverse back and forth movement.

2. A ship-shaped vibrating grading screen according to claim 1, characterized in that: The inner wall of the surface of the sieve plate 1 (3) is provided with a plurality of sieve holes 1 (4), and the inner wall of the surface of the sieve plate 2 (5) is provided with a plurality of sieve holes 2 (6), and the aperture size of the sieve hole 1 (4) is smaller than the aperture size of the sieve hole 2 (6).

3. A ship-shaped vibrating grading screen according to claim 2, characterized in that: The moving assembly comprises a plurality of fixed side seats (26), which are respectively fixedly installed on the side of the ship screen body (1), the inner wall of each fixed side seat (26) is slidably connected with an inner slider (25), one end of the inner slider (25) is fixedly connected with a moving plate (23), the bottom of the moving plate (23) is fixedly connected with a plurality of connecting members (24), one side of each triangular crossbeam platform (8) is fixedly connected with a transverse rod (14), the transverse rod (14) and the connecting member (24) are fixedly connected, a plurality of transverse grooves (15) are symmetrically provided on the side of the ship screen body (1), each transverse rod (14) is respectively slidably connected with each transverse groove (15) and is mutually adapted, and a driving assembly for driving the inner slider (25) to slide repeatedly inside the fixed side seat (26) is provided on one side of the moving plate (23).

4. A ship-shaped vibrating grading screen according to claim 3, characterized in that: The driving assembly comprises a fixed platform (16), the fixed platform (16) being fixedly installed between the tops of the two top beam frames (2), a double-axis motor (17) being fixedly installed just above the fixed platform (16), both ends of the output shaft of the double-axis motor (17) being fixedly connected to a rotating rod (18), both ends of the rotating rod (18) being fixedly connected to an elliptical block (19), the eccentric parts of the two elliptical blocks (19) being fixedly connected to an eccentric rod (21), the outer wall of the eccentric rod (21) being hinged to a double-end hinged rod (20), one end of the double-end hinged rod (20) away from the eccentric rod (21) being hinged to a hinge seat (22), and the hinge seat (22) being fixedly installed on the top of the moving plate (23).

5. A ship-shaped vibrating grading screen according to claim 4, characterized in that: The length of the major axis of the elliptical block (19) is the same as the length of the inner slide groove of the fixed side seat (26), and the length of the inner slide groove of the fixed side seat (26) is the same as the length of the inner wall of the transverse groove (15).

6. A ship-shaped vibrating grading screen according to claim 5, characterized in that: The outer walls of the two rotating rods (18) are fixedly connected to the transmission ring (27), the outer wall of the transmission ring (27) is transmission-connected to the transmission belt (28), one end of the transmission belt (28) away from the transmission ring (27) is transmission-connected to the transmission ring (29), the inner wall of the transmission ring (29) is fixedly connected to the rotating rod (30), the two ends of the rotating rod (30) are fixedly connected to the other two elliptical blocks (19), and the outer wall of the rotating rod (30) is rotationally connected to the inner walls of the two ship screen bodies (1).

7. A ship-shaped vibrating grading screen according to claim 6, characterized in that: Both sides of the sieve plate 1 (3) and the sieve plate 2 (5) are fixedly connected with external rods (9), the side surfaces of the ship sieve body (1) are provided with a plurality of open slots (11), the outer walls of the external rods (9) are fixedly connected with lifting sliders (10), the lifting sliders (10) and the open slots (11) are slidably connected and mutually adapted, the top of the lifting sliders (10) is fixedly connected with a damping rod (12), one end of the damping rod (12) away from the lifting sliders (10) is fixedly connected with the inner top of the open slot (11), a return spring (13) is arranged inside the damping rod (12), and the two ends of the return spring (13) are respectively fixedly connected with the top of the lifting slider (10) and the inner top of the open slot (11).

8. The ship-shaped vibrating grading screen according to claim 7, characterized in that: Anti-overflow plates (7) are fixedly connected to both sides of the sieve plate 1 (3) and the sieve plate 2 (5).

9. A ship-shaped vibrating grading screen according to claim 8, characterized in that: Two external seats (31) are fixedly installed on the sides of the two ship screen bodies (1), the bottoms of the external seats (31) are fixedly connected to a plurality of rubber shock-absorbing springs (32), and a bottom plate (33) is fixedly connected between the bottoms of the plurality of rubber shock-absorbing springs (32).

10. A ship-shaped vibrating grading screen according to claim 9, characterized in that: A collecting box 1 (34), a collecting box 2 (35) and a collecting box 3 (36) are arranged between the two bottom plates (33); the collecting box 1 (34) is located directly below the sieve plate 1 (3); the collecting box 2 (35) is located directly below the sieve plate 2 (5); and the collecting box 3 (36) is located directly below the outlet of the sieve plate 2 (5).

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