Vibrating screen

Abstract

The utility model discloses a vibrating screen. The vibrating screen mainly comprises a vibrating main machine, a screen mesh and a fixed disc, a cutting assembly and an auxiliary assembly are arranged in the fixing disc, the auxiliary assembly is pulled to drive the cutting assembly to rotationally cut a new screen, and the auxiliary assembly punches the screen when the cutting assembly rotationally cuts the screen, so that subsequent bolt fixing is facilitated; the vibrating screen solves the problems that when the screen cloth of the vibrating screen is replaced, operation is tedious, and operation time is long. The replacement efficiency of the screen can be improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] This application relates to the field of screening equipment, specifically to a vibrating screen. Background Technology

[0002] In modern mining engineering, it is necessary to crush and screen the extracted mineral resources. During the mining process, raw ore usually contains ore of various particle sizes. Vibrating screens can classify ore according to particle size, separating materials of different sizes for subsequent smelting, beneficiation, and other processes. Furthermore, ores often contain large amounts of moisture or clay. Vibrating screens can help remove moisture from ore, especially during washing and beneficiation processes. Dehydrated mineral materials are easier to store and transport. Vibrating screens can precisely classify minerals by adjusting the mesh size and controlling the particle size range. For example, in the coal mining industry, vibrating screens can separate coal lumps of different sizes and purify high-quality coal. However, when the screen mesh needs to be changed after long-term use or when the mesh size needs to be modified, the screen mesh of the vibrating screen needs to be replaced. The current main replacement method is to place the new screen mesh between the fixed plates, break the screen mesh at the fixed holes by tapping them one by one, then fix it with bolts and nuts one by one, and finally use a cutter to cut the edge of the screen mesh. This method makes screen replacement time-consuming, requires operators to exert a lot of labor, seriously affects the ore screening efficiency, and increases the operating cost of the vibrating screen.

[0003] Therefore, this application designs a vibrating screen that facilitates both punching and cutting of new screens. Utility Model Content

[0004] The purpose of this invention is to provide a vibrating screen that solves the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibrating screen, comprising a vibrating host, a screen, and a fixing plate for fixing the screen; the outer periphery of the fixing plate is detachably slidably connected to the inner wall of the vibrating host, and the screen is bolted to the fixing plate; a cutting component and an auxiliary component are provided inside the fixing plate, the cutting component is slidably connected to the fixing plate, the auxiliary component is slidably connected to the fixing plate, and the cutting component is rotatably connected to the auxiliary component; pulling the auxiliary component drives the cutting component to rotate and cut the screen; the auxiliary component punches holes in the screen when the cutting component rotates and cuts, facilitating subsequent bolt fixing.

[0006] With the addition of cutting and auxiliary components, the screen can be punched and the edges of unused screens can be cut at the same time. This allows the operator to complete all punching and cutting by simply pulling the auxiliary component around the fixed plate for one full rotation. This improves the efficiency of screen replacement and reduces the workload of the operators.

[0007] Furthermore, the fixing plate includes an upper plate and a lower fixing plate, both of which have through fixing holes evenly distributed around their circumference. The screen is positioned between the upper plate and the lower fixing plate. A screw is slidably installed within the fixing hole, and the sliding connection between the fixing hole and the screw has a limit switch to prevent the screw from rotating.

[0008] Furthermore, the cutting assembly includes a first annular slot, a second annular slot, a rolling gear, a rack, and a cutter; the first annular slot is formed on the side of the upper fixed plate, the second annular slot is set on the outer periphery of the upper plate, the first annular slot communicates with the second annular slot, the lower end of the rack is welded to the bottom wall of the first annular slot, the rolling gear is slidably connected to the inner wall of the first annular slot, the rolling gear meshes with the rack, and the middle part of the cutter is inserted into the middle part of the rolling gear.

[0009] Furthermore, the auxiliary components include a drive pin, a driven pin, a sliding link, and a handle; the sliding link is slidably connected to the second annular slot, one end of the sliding link is rotatably connected to the end of the rolling gear away from the cutter, the other end of the sliding link is inserted into the drive pin, the lower end of the driven pin is inserted into the upper end of the screw, one end of the handle is inserted into the upper rear part of the sliding link, both the drive pin and the driven pin are trapezoidal structures, the trapezoidal inclined surface of the driven pin faces the same direction as the trapezoidal inclined surface of the drive pin, a pivot is provided in the middle of the handle, and the handle is folded through the pivot.

[0010] By using a rack and pinion mechanism, the cutter rotates synchronously with the fixed plate as it rotates around the plate, cutting the screen in a rotating manner. Simultaneously, the drive pin drives the driven pin downward, causing the screw to pierce the screen and enter the fixing hole of the lower fixing plate, thus limiting the screen's movement. This eliminates the need for manual pulling or limiting of the screen, resulting in a smoother cut and improved screen cutting quality, further reducing the number of steps required for operators.

[0011] Furthermore, a nut is provided at the lower end of the screw, and the nut is threadedly connected to the screw to limit and fix the lower fixing plate and the screen.

[0012] Compared with existing technologies, it has the following beneficial effects:

[0013] This utility model provides a vibrating screen that, through the setting of a cutting component and an auxiliary component, punches holes in the screen mesh while cutting the edges of the unused screen mesh. This allows the operator to complete all punching and cutting by pulling the auxiliary component around the fixed plate for one revolution, thereby improving the screen mesh replacement efficiency of the vibrating screen and reducing the labor intensity of the operators.

[0014] By using a rack and pinion mechanism, the cutter rotates synchronously with the fixed plate as it rotates around the plate, cutting the screen in a rotating manner. Simultaneously, the drive pin drives the driven pin downward, causing the screw to pierce the screen and enter the fixing hole of the lower fixing plate, thus limiting the screen's movement. This eliminates the need for manual pulling or limiting of the screen, resulting in a smoother cut and improved screen cutting quality, further reducing the number of steps required for operators. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a vibrating screen according to the present invention;

[0016] Figure 2 This is a schematic diagram of the fixed plate of a vibrating screen according to the present invention;

[0017] Figure 3 This is a schematic diagram of the lower fixing plate of a vibrating screen according to the present invention;

[0018] Figure 4 This is a schematic diagram of a cutting component of a vibrating screen according to the present invention;

[0019] Figure 5 This is a schematic diagram of an auxiliary component of a vibrating screen according to the present invention;

[0020] Figure 6 This is a schematic diagram of the screws in a vibrating screen according to the present invention.

[0021] In the diagram: 1-Vibration host; 2-Screw; 3-Fixing plate; 31-Upper plate; 32-Lower fixing plate; 33-Fixing hole; 331-Screw; 4-Cutting assembly; 41-First annular slot; 42-Second annular slot; 43-Rolling gear; 44-Rack; 45-Cutter; 5-Auxiliary assembly; 51-Drive pin; 52-Driven pin; 53-Sliding link; 54-Handle; 541-Rotating shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 6As shown, this utility model provides the following technical solution: a vibrating screen, including a vibrating host 1, a screen 2, and a fixing plate 3 for fixing the screen 2; the outer periphery of the fixing plate 3 is detachably slidably connected to the inner wall of the vibrating host 1, and the screen 2 is bolted to the fixing plate 3; a cutting component 4 and an auxiliary component 5 are provided inside the fixing plate 3, the cutting component 4 is slidably connected to the fixing plate 3, the auxiliary component 5 is slidably connected to the fixing plate 3, and the cutting component 4 is rotatably connected to the auxiliary component 5. Pulling the auxiliary component 5 drives the cutting component 4 to rotate and cut the screen 2. The auxiliary component 5 punches holes in the screen 2 when the cutting component 4 rotates and cuts, which facilitates subsequent bolt fixing.

[0024] As another embodiment, such as Figures 2 to 4 As shown, the fixed plate 3 includes an upper plate 31 and a lower fixed plate 32. Both the upper plate 31 and the lower fixed plate 32 have through fixing holes 33, which are evenly distributed around the circumference. The screen 2 is positioned between the upper plate 31 and the lower fixed plate 32. When replacing the screen 2, the fixed plate 3 is removed from the vibrating host 1, and the new screen 2 is placed between the upper plate 31 and the lower fixed plate 32, ensuring that the fixing holes 33 on the upper plate 31 correspond to the positions of the fixing holes 33 on the lower fixed plate 32.

[0025] See Figure 4 A screw 331 is slidably disposed in the fixing hole 33. The sliding connection between the fixing hole 33 and the screw 331 has a limit to prevent the screw 331 from rotating.

[0026] As another embodiment, such as Figure 2 and Figure 4 As shown, the cutting assembly 4 includes a first annular slot 41, a second annular slot 42, a rolling gear 43, a rack 44, and a cutter 45. The first annular slot 41 is located on the side of the upper fixed plate 3, and the second annular slot 42 is located on the outer periphery of the upper plate 31. The first annular slot 41 communicates with the second annular slot 42. The lower end of the rack 44 is welded to the bottom wall of the first annular slot 41. The rolling gear 43 is slidably connected to the inner wall of the first annular slot 41 and meshes with the rack 44. The middle part of the cutter 45 is inserted into the middle part of the rolling gear 43. The cutter 45 has a disc-shaped structure and is set at an arc that matches the upper plate 31. The surface of the cutter 45 is provided with teeth. The cutter 45 rotates, causing the teeth to rotate, thereby cutting the screen 2.

[0027] After placing the screen 2, pull the auxiliary mechanism to make the auxiliary mechanism drive the rolling gear 43 to slide along the first annular slot 41. Due to the meshing of the rolling gear 43 and the rack 44, the rolling gear 43 rotates in the same way, which in turn drives the cutter 45 to rotate and generate displacement at the same time. This causes the cutter 45 to rotate around the upper plate 31 while rotating itself to cut the screen 2, cutting off the unused part of the screen 2.

[0028] As another embodiment, such as Figure 4 and Figure 5 As shown, the auxiliary component 5 includes a drive pin 51, a driven pin 52, a sliding link 53, and a handle 54. The sliding link 53 is slidably connected to the second annular slot 42. One end of the sliding link 53 is rotatably connected to the end of the rolling gear 43 away from the cutter 45, and the other end of the sliding link 53 is inserted into the drive pin 51. The lower end of the driven pin 52 is inserted into the upper end of the screw 331, and one end of the handle 54 is inserted into the upper rear part of the sliding link 53. The side of the sliding link 53 has an arc that matches the upper plate 31, and the sliding connection between the sliding link 53 and the second annular slot 42 has a limit to prevent the sliding link 53 from displacing vertically.

[0029] When replacing screen 2, the operator pulls handle 54, causing sliding rod 53 to move along the second annular slot 42, rotating around upper plate 31. This causes drive pin 51 to move, colliding with driven pin 52 during displacement. The collision drives driven pin 52 to slide downwards along fixing hole 33, which in turn causes screw 331 to move downwards. The tip of screw 331 pierces screen 2 and enters the fixing hole 33 of lower fixing plate 32, providing tension and limiting for screen 2. Simultaneously, the displacement of sliding rod 53 causes the rotating gear 43 connected to it to move, causing cutter 45 to rotate and cut screen 2.

[0030] See Figure 4 Both the drive pin 51 and the driven pin 52 are trapezoidal structures, with the trapezoidal inclined surface of the driven pin 52 facing opposite directions to the trapezoidal inclined surface of the drive pin 51. When the drive pin 51 is displaced, the inclined surface of the drive pin 51 contacts and collides with the inclined surface of the driven pin 52, converting the horizontal force into a vertical force, causing the driven pin 52 to receive a drive that drives the screw 331 to move downward.

[0031] See Figure 5 The handle 54 has a rotating shaft 541 in the middle, and the handle 54 can be folded through the rotating shaft 541. Rotating the folded handle 54 makes it easy to store when the screen 2 does not need to be changed, so that the handle 54 does not affect the normal operation of the vibrating screen.

[0032] It should be noted that a nut is provided at the lower end of the screw 331. The nut is threadedly connected to the screw 331 to limit and fix the lower fixing plate 32 and the screen 2. After the handle 54 is pulled and rotated around the upper plate 31 for one revolution, all the screws 331 are driven into the fixing holes 33 of the lower fixing plate 32, and the cutting is also completed. After the nut is put on the screw 331 for rotation and threaded connection, and tightened, the screen 2 is replaced.

[0033] Working principle: When the screen 2 needs to be replaced, the fixed plate 3 is removed from the vibrating host 1, and the new screen 2 is placed between the upper plate 31 and the lower fixed plate 32, so that the upper plate 31 corresponds to the fixing hole 33 on the lower fixed plate 32; pulling the handle 54 causes the sliding connecting rod 53 to drive the rolling gear 43 to rotate and slide along the first annular groove 41, thereby driving the cutter 45 to rotate and generate displacement at the same time. This causes the cutter 45 to move around the circumference of the upper plate 31 while rotating itself to cut the screen 2, thus removing the unused screen 2. Partial cutting occurs, and simultaneously, the sliding connecting rod 53 causes the drive pin 51 to collide with the driven pin 52. During the collision, the driven pin 52 is driven to slide downward along the fixing hole 33. The tip of the screw 331 pierces the screen 2 and enters the fixing hole 33 of the lower fixing plate 32. After pulling the handle 54 to rotate around the upper plate 31 for one revolution, all the screws 331 are driven into the fixing holes 33 of the lower fixing plate 32, and the cutting is completed. The nut is placed on the screw 331 to form a threaded connection for rotation and is tightened. The screen 2 is then replaced.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen, characterized in that, The device includes a vibrating host (1), a screen (2), and a fixing plate (3) for fixing the screen (2). The outer periphery of the fixing plate (3) is detachably slidably connected to the inner wall of the vibrating host (1), and the screen (2) is bolted to the fixing plate (3). The fixing plate (3) is provided with a cutting component (4) and an auxiliary component (5). The cutting component (4) is slidably connected to the fixing plate (3), and the auxiliary component (5) is slidably connected to the fixing plate (3). The cutting component (4) is rotatably connected to the auxiliary component (5). Pulling the auxiliary component (5) drives the cutting component (4) to rotate and cut the screen (2) when it is being replaced. The auxiliary component (5) punches holes in the screen (2) when the cutting component (4) is rotating and cutting, so as to facilitate subsequent bolt fixing.

2. The vibrating screen according to claim 1, characterized in that, The fixed plate (3) includes an upper plate (31) and a lower fixed plate (32). Both the upper plate (31) and the lower fixed plate (32) are provided with through fixed holes (33). The fixed holes (33) are evenly arranged around the circumference. The screen (2) is disposed between the upper plate (31) and the lower fixed plate (32).

3. The vibrating screen according to claim 2, characterized in that, A screw (331) is slidably disposed in the fixing hole (33), and the sliding connection between the fixing hole (33) and the screw (331) has a limit to prevent the screw (331) from rotating.

4. The vibrating screen according to claim 3, characterized in that, The cutting assembly (4) includes a first annular slot (41), a second annular slot (42), a rolling gear (43), a rack (44), and a cutter (45); the first annular slot (41) is opened on the side of the fixed plate (3), the second annular slot (42) is disposed on the outer periphery of the upper plate (31), the first annular slot (41) communicates with the second annular slot (42), the lower end of the rack (44) is welded to the bottom wall of the first annular slot (41), the rolling gear (43) is slidably connected to the inner wall of the first annular slot (41), the rolling gear (43) meshes with the rack (44), and the middle part of the cutter (45) is inserted into the middle part of the rolling gear (43).

5. The vibrating screen according to claim 4, characterized in that, The auxiliary component (5) includes a drive pin (51), a driven pin (52), a sliding link (53), and a handle (54); the sliding link (53) is slidably connected to the second annular slot (42), one end of the sliding link (53) is rotatably connected to the end of the rolling gear (43) away from the cutter (45), the other end of the sliding link (53) is inserted into the drive pin (51), the lower end of the driven pin (52) is inserted into the upper end of the screw (331), and one end of the handle (54) is inserted into the upper rear part of the sliding link (53).

6. The vibrating screen according to claim 5, characterized in that, Both the driving pin (51) and the driven pin (52) are trapezoidal structures, with the trapezoidal inclined surface of the driven pin (52) facing the trapezoidal inclined surface of the driving pin (51).

7. The vibrating screen according to claim 5, characterized in that, The handle (54) has a pivot (541) in the middle, and the handle (54) can be folded through the pivot (541).

8. The vibrating screen according to claim 3, characterized in that, The screw (331) has a nut at its lower end, and the nut is threadedly connected to the screw (331) to limit and fix the lower fixing piece (32) and the screen (2).

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