A vibrating screen machine with good separation effect

Abstract

This application relates to a vibrating screen with good separation effect, comprising a frame, a vibrating screen box, a primary screening plate, and a drive assembly for moving aggregate on the primary screening plate. The primary screening plate includes a mounting frame, several filter plates, and a driving component. The mounting frame is disposed on the frame. The filter plates are distributed along the transport direction of the aggregate, and the filter plates are stepped and parallel to each other. The filter plates are rotatably connected to the mounting frame. The driving component is used to drive the filter plates to rotate, causing the aggregate to be thrown away from the filter plates. Several blocking columns are provided on the filter plates to slow down the movement speed of coarse sand. This application has the effect of reducing the adhesion of medium and fine sand to coarse sand and improving the accuracy of coarse sand screening by the vibrating screen.

Description

Technical Field

[0001] This application relates to the field of vibrating screens, and more particularly to a vibrating screen with good separation effect. Background Technology

[0002] Concrete aggregates refer to the granular loose materials that play a role in the skeleton or filling of concrete. They can be divided into coarse aggregates and fine aggregates. Fine aggregates include natural sand and artificial sand. Fine aggregates are further divided into coarse sand, medium sand and fine sand. In the production of concrete, the particle size distribution of fine aggregates in concrete is one of the key technologies. A vibrating screen is used to screen fine aggregates.

[0003] Currently, Chinese utility model patent CN215784749U discloses an aggregate vibrating screen, including a processing box and a screening plate. The screening plate is located inside the processing box and divides the processing box into two compartments. It also includes an ejection mechanism for ejecting aggregates that are caught on the screening plate. This application improves the screening efficiency of the screening plate.

[0004] Coarse sand, medium sand, and fine sand move simultaneously on the screening plate under the action of gravity. Because the coarse sand particles are larger, they will push the medium and fine sand to move during the separation process. As a result, some fine and medium sand will slide out of the screening plate along with the coarse sand, and medium and fine sand will still be present in the coarse sand and cannot be accurately separated. Summary of the Invention

[0005] In order to reduce the adhesion of medium and fine sand to coarse sand and improve the accuracy of coarse sand screening by the vibrating screen, this application provides a vibrating screen with good separation effect.

[0006] This application provides a vibrating screen with good separation effect, which adopts the following technical solution:

[0007] A vibrating screen with good separation effect includes a frame, a vibrating screen box, a primary screening plate, and a drive assembly for moving aggregate on the primary screening plate. The primary screening plate includes a mounting frame, a plurality of filter plates, and a drive component. The mounting frame is disposed on the frame. The plurality of filter plates are distributed along the transport direction of the aggregate. The plurality of filter plates are stepped and parallel to each other. The filter plates are rotatably connected to the mounting frame. The drive component is used to drive the plurality of filter plates to rotate and cause the aggregate to detach from the filter plates. The filter plates are provided with a plurality of blocking columns for slowing down the movement speed of coarse sand.

[0008] By adopting the above technical solution, fine aggregates enter the vibrating screen box. The drive component is used to move the aggregates on the first screening plate. Medium and fine sands pass through the filter screen in the first screening plate and enter the vibrating screen box. Some medium and fine sands move with the coarse sand. During this process, the drive component drives the filter plate to rotate, slowing down the overall movement speed of the fine aggregates and changing the positional relationship between coarse, medium, and fine sands, so that more coarse sand is separated. During the movement, the coarse sand will hit the blocking column, further slowing down the movement speed of the coarse sand and accelerating the separation of fine and medium sands. The fine aggregate separation effect of the vibrating screen is improved, and the discharge speed of fine aggregates is greatly increased.

[0009] Optionally, the mounting frame is slidably connected to the vibrating screen box in a vertical direction. The driving assembly is used to drive the mounting frame to move. The driving component includes several driving gears, a driving rack, a driving spring, and a driving block. The driving gear is coaxially arranged with the rotation axis of the filter plate and is disposed on the filter plate. The driving rack is slidably connected to the mounting frame in the direction of aggregate transportation and meshes with the driving gear. The driving block is disposed on the vibrating screen box and has a guide slope on the driving block to guide the driving rack to move relative to the mounting frame. The driving spring is used to keep the driving rack in contact with the guide slope.

[0010] By adopting the above technical solution, when the filter plate needs to rotate to change the positional relationship between coarse sand, medium sand, and fine sand, the drive component drives the mounting plate frame to move. The movement of the mounting plate changes the position of the drive rack and the drive block. Since the drive spring keeps the drive rack abutting against the guide slope of the drive block, the drive rack moves relative to the mounting frame. The drive rack drives the drive gear to rotate, and the drive gear drives the filter plate to rotate. The rotation of the filter plate throws the fine aggregate up, changing the positional relationship between coarse sand, medium sand, and fine sand, so that the coarse sand can be better separated. Through the drive component, the drive component can drive the mounting frame to shake while driving the filter plate to rotate, which improves the separation effect of coarse sand, medium sand, and fine sand.

[0011] Optionally, the drive component further includes a cover plate for covering the drive spring.

[0012] By adopting the above technical solution, the cover plate is used to cover the drive spring. Since the stone will shake in the vibrating screen box and may even detach from the filter plate, the cover plate reduces the contact between the stone and the drive spring, extends the service life of the drive spring, and improves the reliability of the vibrating screen.

[0013] Optionally, the drive assembly includes several cams, several rotating rods, and a synchronizing element. The rotating rods are distributed along the transport direction of the aggregate and are located below the mounting frame. The rotating rods are rotatably connected to the vibrating screen box. Several cams correspond one-to-one with several rotating rods. The cams abut against the mounting frame. The synchronizing element is used to drive the several rotating rods to rotate synchronously.

[0014] By adopting the above technical solution, the synchronizing component drives several rotating rods to rotate simultaneously. The rotating rods drive the cam to rotate, and the mounting frame remains against the cam under the action of gravity. During the rotation of the cam, the mounting frame drives the mounting frame to slide on the vibrating screen box. The reciprocating sliding of the mounting frame can drive the movement of the aggregate. The movement of the mounting frame will also drive the driving component to move, which can drive the filter plate to rotate. The rotation of the filter plate realizes the positional change between coarse sand, medium sand and fine sand, making the aggregate separation more refined. The drive component has a simple structure and is easy to operate.

[0015] Optionally, the synchronizing element includes a plurality of worm gears, a worm, and a synchronous motor. The plurality of worm gears correspond one-to-one with the plurality of rotating rods. The worm gears are disposed on the rotating rods. The worm is rotatably connected to the vibrating screen box. The worm meshes with the plurality of worm gears. The synchronous motor is used to drive the worm to rotate.

[0016] By adopting the above technical solution, the synchronous motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating rod to rotate, and the rotating rod drives the cam to rotate. The cam can then slide the mounting frame back and forth vertically, realizing the movement of aggregates in the vibrating screen box. The worm wheel and worm have a self-locking function and a large transmission ratio, which can better drive the cam to lift the mounting frame.

[0017] Optionally, the vibrating screen box is further provided with a secondary screening plate, which includes a sliding frame, a fine screen and several return springs. The sliding frame is slidably connected to the vibrating screen box in a vertical direction. The height of the sliding frame is lower than the height of the drive assembly. Several return springs are used to keep the sliding frame pressed against the cam. The fine screen is disposed on the sliding frame.

[0018] By adopting the above technical solution, the secondary screening plate is used to separate medium sand and fine sand. The synchronizing component drives the rotating rod to rotate, and the rotating rod drives the cam to rotate. Since the cam abuts against the sliding frame, when the cam rotates, it causes the sliding frame to move against the elastic force of the return spring, so that the sliding frame moves back and forth. The sliding frame can separate the medium sand and fine sand that fall on the fine screen. The fine sand will pass through the fine screen and enter the vibrating screen box. The secondary screening plate realizes the separation of medium sand and fine sand in fine aggregate, so that the vibrating screen can separate coarse sand, medium sand and fine sand respectively.

[0019] Optionally, the secondary screening plate further includes an adjusting component, which includes an adjusting frame, an adjusting rod, an adjusting block, an adjusting screw, and an adjusting motor. The adjusting frame is slidably connected to the sliding frame in a vertical direction. The fine screen is disposed on the adjusting frame. The adjusting block is slidably connected to the sliding frame. One end of the adjusting rod is rotatably connected to the adjusting frame, and the other end of the adjusting rod is disposed on the adjusting block. The length direction of the adjusting screw is parallel to the length direction of the adjusting block. The adjusting screw is rotatably connected to the sliding frame, and the adjusting motor is used to drive the adjusting screw to rotate.

[0020] By adopting the above technical solution, due to the presence of a large amount of layered cement-absorbing soil minerals in the sand, there will be a large amount of mixing water, which will cause fine sand and medium sand to clump together. The weather has a significant impact on the state of fine sand and medium sand. When the weather is relatively humid, the staff can adjust the distance between the fine screen and the filter plate to change the falling time of the fine sand and medium sand. The gravity impact of the fine sand and medium sand onto the fine screen will reduce the adhesion phenomenon. The staff will start the adjusting motor, which will drive the adjusting screw to rotate. The adjusting screw will drive the adjusting block to move. The adjusting block will drive the adjusting rod to rotate. The adjusting rod will drive the adjusting frame to move, changing the distance between the adjusting frame and the filter plate.

[0021] Optionally, the fine screen is slidably connected to the adjusting frame, and the adjusting frame is provided with a limiting member to restrict the movement of the fine screen relative to the adjusting frame. The limiting member includes a limiting block and a limiting spring. A limiting groove is opened on the fine screen. The limiting block is slidably connected to the adjusting frame, and the limiting spring is used to keep the limiting block engaged with the limiting groove.

[0022] By adopting the above technical solution, due to the small diameter of the fine sand and the high mesh count of the fine sand screen, the mesh of the fine screen is more easily blocked and needs to be replaced in time. The operator can remove the fine screen from the adjustment frame by sliding the limiting block, which overcomes the elasticity of the limiting spring and disengages from the limiting groove. After replacing the fine screen with a new one, the movement of the fine screen relative to the adjustment frame is restricted by the limiting component.

[0023] Optionally, the adjusting frame is provided with a baffle plate, which is used to reduce the contact between the adjusting component and the aggregate.

[0024] By adopting the above technical solution, the baffle plate is used to reduce the contact between fine sand passing through the fine screen and the regulating component, thereby improving the service life of the regulating component.

[0025] Optionally, the vibrating screen box is rotatably connected to the frame, and the frame is provided with an adjusting cylinder for adjusting the angle of the vibrating screen box. One end of the piston rod of the adjusting cylinder is rotatably connected to the vibrating screen box, and the other end of the adjusting cylinder is rotatably connected to the frame.

[0026] By adopting the above technical solution, the adjusting cylinder is used to adjust the gap between the vibrating screen box and the frame, so that the vibrating screen can adapt to different working environments and can perform normal vibrating screen operation even if the ground is not level.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The primary screening plate is divided into several filter plates, and the filter plates are rotatably connected to the mounting frame, which achieves better screening of coarse sand from fine aggregate;

[0029] 2. The secondary screening plate is used to screen medium sand and fine sand;

[0030] 3. The adjusting component is used to adjust the distance between the secondary screening plate and the primary screening plate, which can better allow the clumps of medium or fine sand to impact the secondary screening plate under gravity, and better break up the medium and fine sand. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a vibrating screen machine with good separation effect.

[0032] Figure 2 yes Figure 1 A cross-sectional view of the primary screening plate, used to show the drive components.

[0033] Figure 3 Used to demonstrate the positional relationship between the primary screening plate, the secondary screening plate, and the drive assembly.

[0034] Figure 4 yes Figure 3 An exploded view of the intermediate secondary screening plate, used to show the adjustment components.

[0035] Figure 5 yes Figure 4 A sectional view of the central adjustment frame, used to show the limiting components.

[0036] Figure 6 yes Figure 1 A schematic diagram of the structure of the driving component.

[0037] Reference numerals: 1. Frame; 2. Vibrating screen box; 3. Primary screening plate; 31. Mounting frame; 32. Filter plate; 33. Drive component; 331. Drive gear; 332. Drive rack; 333. Drive spring; 334. Drive block; 335. Cover plate; 336. Guide slope; 34. Blocking column; 4. Drive assembly; 41. Cam; 42. Rotating rod; 43. Synchronizer; 431. Worm gear; 432. Worm; 433. Synchronous motor; 5. Secondary screening plate; 51. Sliding frame; 52. Fine screen; 521. Restricting groove; 53. Return spring; 54. Adjusting component; 541. Adjusting frame; 542. Adjusting rod; 543. Adjusting block; 544. Adjusting screw; 545. Adjusting motor; 546. Baffle plate; 547. Receiving groove; 6. Adjusting cylinder; 7. Restricting component; 71. Restricting block; 72. Restricting spring; 721. Guide slope. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0039] This application discloses a vibrating screen with good separation effect. (Refer to...) Figure 1 and Figure 2 A vibrating screen with good separation effect includes a frame 1, a vibrating screen box 2, a primary screening plate 3, a drive assembly 4, a secondary screening plate 5, and an adjusting cylinder 6. The vibrating screen box 2 is rectangular, with an opening on its upper end face and an opening on one side wall along its length. The vibrating screen box 2 is rotatably connected to the frame 1 along its width. The cylinder body of the adjusting cylinder 6 is rotatably connected to the frame 1, and one end of the piston rod of the adjusting cylinder 6 is rotatably connected to the bottom wall of the vibrating screen box 2. The primary screening plate 3, the drive assembly 4, and the secondary screening plate 5 are all located inside the vibrating screen box 2 and are distributed vertically downwards.

[0040] Reference Figure 1 and Figure 2 The primary screening plate 3 includes a mounting frame 31, several filter plates 32, and a driving component 33. The mounting frame 31 is slidably connected to the inner wall of the vibrating screen box 2 in the vertical direction. The several filter plates 32 are distributed along the length direction of the vibrating screen box 2. The height of the several filter plates 32 gradually decreases along the direction of aggregate movement. The several filter plates 32 are distributed in a stepped shape and are parallel to each other. The filter plates 32 are rotatably connected to the inner wall of the vibrating screen box 2 in the width direction. Several blocking columns 34 for slowing down the movement speed of coarse sand are fixedly installed on the upper surface of the filter plates 32. The blocking columns 34 are distributed along the width direction of the vibrating screen box 2, and the angle between the blocking columns 34 and the filter plates 32 is an obtuse angle.

[0041] Reference Figure 1 and Figure 2The driving component 33 includes several driving gears 331, a driving rack 332, several driving springs 333, a driving block 334, and a cover plate 335. Each driving gear 331 corresponds to one of the filter plates 32. The rotation axes of the driving gears 331 and the filter plates 32 are coaxially arranged. The driving gears 331 are fixedly mounted on the filter plates 32. The length direction of the driving rack 332 is parallel to the length direction of the mounting frame 31. The driving rack 332 slides along the length direction of the mounting frame 31 and is connected to the upper end face of the mounting frame 31. The driving gears 331 mesh with the other driving gears 331. The driving springs 333 are distributed along the width direction of the mounting frame 31. The length of the driving spring 333 is parallel to the length direction of the mounting frame 31. One end of the driving spring 333 is fixedly mounted on the driving rack 332, and the other end of the driving spring 333 is fixedly mounted on the mounting frame 31. The driving block 334 is fixedly mounted on the vibrating screen box 2. A guide slope 336 is provided between the end of the driving block 334 facing the driving rack 332 and the lower end face of the driving block 334. The driving spring 333 keeps the driving rack 332 in contact with the guide slope 336. The cover plate 335 is parallel to the upper end face of the mounting frame 31 and is fixedly mounted on the upper end face of the mounting frame 31. The cover plate 335 is used to cover the driving spring 333.

[0042] Reference Figure 3 and Figure 4 The second screening plate includes a sliding frame 51, a fine screen 52, several return springs 53, and an adjusting component 54. The height of the sliding frame 51 is lower than that of the first screening plate. The sliding frame 51 is located inside the vibrating screen box 2. The sliding frame 51 slides vertically and is connected to the vibrating screen box 2. Several return springs 53 are evenly distributed on the lower end surface of the sliding frame 51. The return springs 53 are vertically arranged. One end of the return spring 53 is fixedly set on the sliding frame 51, and the other end of the return spring 53 is fixedly set on the vibrating screen box 2.

[0043] Reference Figure 3 and Figure 4The adjusting component 54 includes an adjusting frame 541, several adjusting rods 542, several adjusting blocks 543, an adjusting screw 544, and an adjusting motor 545. The adjusting frame 541 is slidably connected to the sliding frame 51 in the vertical direction and is located inside the sliding frame 51. The adjusting screw 544 is parallel to the length direction of the sliding frame 51 and is rotatably connected to the sliding frame 51. The adjusting motor 545 is fixedly mounted on the sliding frame 51, and the output shaft of the adjusting motor 545 is fixedly connected to one end of the adjusting screw 544. The several adjusting blocks 543 are adjusted along the adjusting... The screws 544 are distributed along their length. The adjusting blocks 543 are slidably connected to the sliding frame 51 along the length of the adjusting screws 544. The adjusting blocks 543 are threadedly connected to the adjusting screws 544. Several adjusting rods 542 correspond one-to-one with several adjusting blocks 543. One end of the adjusting rod 542 is rotatably connected to the adjusting block 543, and the other end of the adjusting rod 542 is rotatably connected to the adjusting frame 541. A baffle plate 546 is provided on the adjusting frame 541. The baffle plate 546 is vertically arranged and covers the adjusting rods 542, adjusting blocks 543, adjusting screws 544, and adjusting motor 545 to reduce the contact between fine sand and the adjusting screws 544.

[0044] Reference Figure 4 and Figure 5 The fine screen 52 is slidably connected to the adjusting frame 541 along the length direction of the adjusting frame 541. The adjusting frame 541 is provided with a limiting member 7 that restricts the movement of the fine screen 52. The limiting member 7 includes a limiting block 71 and a limiting spring 72. The adjusting frame 541 has a receiving groove 547 along the width direction of the fine screen 52. The limiting block 71 is slidably connected to the receiving groove 547 along the direction perpendicular to the width of the adjusting frame 541. The limiting spring 72 is fixed in a length direction parallel to the sliding direction of the limiting block 71. One end of the limiting spring 72 is fixedly set at the bottom of the receiving groove 547, and the other end of the limiting spring 72 is fixedly set on the limiting block 71. The fine screen 52 has a limiting groove 521 for engaging with the limiting block 71. The end of the limiting block 71 away from the fine screen 52 and the end of the limiting block 71 away from the receiving groove 547 have guide slopes 721.

[0045] Reference Figure 1 and Figure 6The drive assembly 4 includes several cams 41, several rotating rods 42, and a synchronizing element 43. The synchronizing element 43 includes several worm gears 431, worms 432, and a synchronous motor 433. The rotating rods 42 are distributed along the length of the vibrating screen box 2 and are located between the primary screening plate 3 and the secondary screening plate 5. The rotating rods 42 are rotatably connected to the vibrating screen box 2. The several cams 41 correspond one-to-one with the several rotating rods 42. The cams 41 are fixedly mounted on the rotating rods 42 and abut against the mounting frame. The lower end face of 31, the cam 41 abuts against the upper end face of the sliding frame 51, a number of worm gears 431 correspond one-to-one with a number of rotating rods 42, the worm gears 431 are fixedly set on one end of the rotating rods 42, the length direction of the worm 432 is parallel to the distribution direction of the rotating rods 42, the worm 432 is rotatably connected to the vibrating screen box 2, the worm 432 meshes with a number of worm gears 431, the synchronous motor 433 is fixedly set on the vibrating screen box 2, and the output shaft of the synchronous motor 433 is fixedly connected to one end of the worm 432.

[0046] The implementation principle of a vibrating screen with good separation effect in this embodiment of the application is as follows: The operator first starts the synchronous motor 433, which drives the worm gear 432 to rotate. The worm gear 432 drives the worm wheel 431 to rotate, which in turn drives the rotating rod 42 to rotate. The rotating rod 42 drives the cam 41 to rotate, which in turn drives the mounting frame 31 and the sliding frame 51 to move intermittently back and forth. The movement of the mounting frame 31 removes coarse sand from the aggregate. The movement of the mounting frame 31 also drives the filter plate 32 to move vertically, which in turn drives the rack 3... 32 remains in contact with the guide slope 336. During the movement of the mounting frame 31, the rack 332 will move relative to the mounting frame 31. The rack 332 will drive the gear 331 to rotate, and the gear 331 will drive the filter plate 32 to rotate. The filter plate 32 throws the aggregate up and changes the direction of the aggregate's movement. Due to the different qualities of coarse sand, medium sand, and fine sand, their inertia is different. After the medium sand and fine sand separate from the coarse sand, they can be smoothly separated. The movement of the coarse sand can be further slowed down by the blocking column 34, which makes it easier for the fine sand and medium sand to separate from the coarse sand.

[0047] Medium and fine sand enter the secondary screening plate 5. The adjusting frame 541 moves under the drive of the drive component 4. The adjusting frame 541 will screen the medium and fine sand. Since the moisture content of medium and fine sand is easily affected by the weather, when the moisture content of medium and fine sand is large and it is in lumps, the operator can adjust the motor 545 to change the distance between the fine screen 52 on the adjusting frame 541 and the primary screening plate 3. By increasing the falling time of medium and fine sand, the impact force of fine sand hitting the fine sand screen is increased, crushing the lumpy fine and medium sand and filtering the fine sand better.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vibrating screen with good separation effect, characterized in that: The system includes a frame (1), a vibrating screen box (2), a primary screening plate (3), and a drive assembly (4) for moving aggregates on the primary screening plate (3). The primary screening plate (3) includes a mounting frame (31), several filter plates (32), and a drive component (33). The mounting frame (31) is mounted on the frame (1). Several filter plates (32) are distributed along the direction of aggregate transport. The filter plates (32) form a stepped shape and are parallel to each other. The filter plates (32) are rotatably connected to the mounting frame (31). The drive component (33) is used to drive the filter plates (32) to rotate and cause the aggregates to be thrown away from the filter plates (32). Several blocking columns (34) are provided on the filter plates (32) to slow down the movement speed of coarse sand. The mounting frame (31) is slidably connected to the vibrating screen box (2) in the vertical direction. The drive assembly (4) is used to drive the primary screening plate (3) to rotate. The mounting frame (31) moves, and the driving component (33) includes several driving gears (331), driving racks (332), driving springs (333), and driving blocks (334). The driving gears (331) are coaxially arranged with the rotation axis of the filter plate (32). The driving gears (331) are arranged on the filter plate (32). The driving racks (332) are slidably connected to the mounting frame (31) along the transport direction of the aggregate. The driving racks (332) mesh with the driving gears (331). The driving blocks (334) are arranged on the vibrating screen box (2). The driving blocks (334) have a guide slope (336) on them to guide the driving racks (332) to move relative to the mounting frame (31). The driving springs (333) are used to keep the driving racks (332) in contact with the guide slope (336).The vibrating screen box (2) is also equipped with a secondary screening plate (5) for separating medium sand and fine sand. The secondary screening plate (5) includes a sliding frame (51), a fine screen (52), and several return springs (53). The sliding frame (51) is slidably connected to the vibrating screen box (2) in the vertical direction. The secondary screening plate (5) also includes an adjusting component (54). The adjusting component (54) includes an adjusting frame (541), an adjusting rod (542), an adjusting block (543), an adjusting screw (544), and an adjusting motor (545). The adjusting frame (541) is slidably connected to the sliding frame in the vertical direction. (51) The fine screen (52) is mounted on the adjusting frame (541), the adjusting block (543) is slidably connected to the sliding frame (51), one end of the adjusting rod (542) is rotatably connected to the adjusting frame (541), and the other end of the adjusting rod (542) is mounted on the adjusting block (543). The length direction of the adjusting screw (544) is parallel to the length direction of the adjusting block (543), and the adjusting screw (544) is rotatably connected to the sliding frame (51). The adjusting motor (545) is used to drive the adjusting screw (544) to rotate.

2. The vibrating screen with good separation effect according to claim 1, characterized in that: The drive component (33) also includes a cover plate (335) for covering the drive spring (333).

3. The vibrating screen with good separation effect according to claim 1, characterized in that: The drive assembly (4) includes several cams (41), several rotating rods (42), and a synchronizing element (43). The several rotating rods (42) are distributed along the transport direction of the aggregate. The several rotating rods (42) are located below the mounting frame (31). The rotating rods (42) are rotatably connected to the vibrating screen box (2). The several cams (41) correspond one-to-one with the several rotating rods (42). The cams (41) abut against the mounting frame (31). The synchronizing element (43) is used to drive the several rotating rods (42) to rotate synchronously.

4. The vibrating screen with good separation effect according to claim 3, characterized in that: The synchronizing component (43) includes several worm gears (431), worms (432), and a synchronous motor (433). Each of the worm gears (431) corresponds to one of the rotating rods (42). The worm gears (431) are mounted on the rotating rods (42). The worms (432) are rotatably connected to the vibrating screen box (2). The worms (432) mesh with the worm gears (431). The synchronous motor (433) is used to drive the worms (432) to rotate.

5. A vibrating screen with good separation effect according to claim 4, characterized in that: The height of the sliding frame (51) is lower than the height of the drive assembly (4), and a number of return springs (53) are used to keep the sliding frame (51) pressed against the cam (41). The fine screen (52) is disposed on the sliding frame (51).

6. The vibrating screen with good separation effect according to claim 1, characterized in that: The fine screen (52) is slidably connected to the adjusting frame (541). The adjusting frame (541) is provided with a limiting member (7) that restricts the movement of the fine screen (52) relative to the adjusting frame (541). The limiting member (7) includes a limiting block (71) and a limiting spring (72). The fine screen (52) is provided with a limiting groove (521). The limiting block (71) is slidably connected to the adjusting frame (541). The limiting spring (72) is used to keep the limiting block (71) engaged with the limiting groove (521).

7. A vibrating screen with good separation effect according to claim 6, characterized in that: The adjusting frame (541) is provided with a baffle plate (546), which is used to reduce the contact between the adjusting component (54) and the aggregate.

8. A vibrating screen with good separation effect according to claim 1, characterized in that: The vibrating screen box (2) is rotatably connected to the frame (1). The frame (1) is provided with an adjusting cylinder (6) for adjusting the angle of the vibrating screen box (2). One end of the piston rod of the adjusting cylinder (6) is rotatably connected to the vibrating screen box (2), and the other end of the adjusting cylinder (6) is rotatably connected to the frame (1).

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