A multi-stage speed-reducing stable vibrating screen

Abstract

This utility model relates to the field of screening machines, specifically a multi-stage speed-reducing stable vibrating screening machine, which includes a frame; it also includes: a storage silo, mounted on the frame, with a feed hopper on the storage silo, a discharge mechanism at the bottom of the feed hopper connecting to the storage silo, and a discharge port at the center of the bottom of the storage silo; an air chamber, located at one end of the storage silo, with a dust outlet at the other end, and a blower mechanism inside the air chamber; a slag discharge trough, located at the bottom of the storage silo near the dust outlet; a vibrating frame, mounted on the frame via a rocker arm, with a screening mechanism mounted on the vibrating frame below the discharge port; and a vibration mechanism, mounted on the frame, which drives the vibrating frame to vibrate. This utility model uses a common motor for multi-stage speed reduction and then uses a rocker arm to drive the vibrating frame to oscillate within a small range, resulting in lower costs. Furthermore, it quickly completes screening through multiple screening plates, resulting in a low screening path and high screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screening machines, and in particular to a stable vibration screening machine with multi-stage speed reduction. Background Technology

[0002] A screening machine is a mechanical device that uses vibration or rotation to screen and filter materials. It is mainly used to separate particles of different sizes or shapes. The basic working principle is usually to use vibration to drive related structures to vibrate and complete the screening of materials.

[0003] Existing vibrating screening machines rely solely on vibration for screening, resulting in a long screening path, low screening efficiency, and the use of vibrating motors to generate vibration. However, due to structural requirements, vibrating motors are more expensive than ordinary motors. Utility Model Content

[0004] The purpose of this invention is to address the problems of long screening paths, low screening efficiency, and high costs in the prior art by proposing a stable vibration screening machine with multi-stage speed reduction.

[0005] The technical solution of this utility model is: a multi-stage speed-reducing stable vibration screening machine, including a frame; and further including:

[0006] The storage bin is mounted on the frame. A feeding bin is mounted on the storage bin. A discharge mechanism is located at the bottom of the feeding bin, which connects to the storage bin. A discharge port is located at the middle of the bottom of the storage bin.

[0007] The air chamber is located at one end of the storage silo, and the dust outlet is located at the other end of the storage silo. The air chamber is equipped with a blower mechanism, which blows air towards the dust outlet.

[0008] The slag discharge chute is located at the bottom of the storage silo near the dust outlet.

[0009] The vibrating frame is mounted on the machine frame by swinging the rocker arm, and a screening mechanism is installed on the vibrating frame, which is located below the discharge port.

[0010] And a vibration mechanism, which is installed on the frame, drives the vibration frame to vibrate.

[0011] Preferably, the discharge mechanism includes a rotating rod rotatably mounted on the discharge port at the bottom of the feed hopper, a discharge plate mounted on the rotating rod, an opening adjustment rod mounted at the end of the rotating rod, an arc-shaped limiting plate mounted on the outer wall of the storage hopper, and an adjustment wheel rotatably connected to the other end of the opening adjustment rod. The threaded rod on the adjustment wheel passes through the arc-shaped groove on the arc-shaped limiting plate and is locked by a nut.

[0012] Preferably, the blower mechanism includes a blower motor disposed in the air chamber, a rotating shaft connected to the output shaft of the blower motor, and multiple fan blades disposed on the rotating shaft.

[0013] Preferably, the screening mechanism includes a top screening plate, a middle screening plate, and a bottom screening plate arranged sequentially from top to bottom. The discharge ends of the three plates are staggered in the vertical direction. The diameter of the screening holes on the top screening plate is larger than that on the middle screening plate. The bottom screening plate has no screening holes. The screening mechanism is set at an angle.

[0014] Preferably, the vibration mechanism includes a motor mounted on a frame, a first connecting shaft rotatably mounted on the frame, a first pulley and a second pulley mounted on the first connecting shaft, a second connecting shaft rotatably mounted on the frame and located on the first connecting shaft, a third pulley and a turntable mounted at both ends of the second connecting shaft, and a pull arm rotatably mounted on the turntable but not on the same axis as the turntable, the pull arm being rotatably connected to the vibration frame; the motor output shaft is a belt shaft, the belt shaft is connected to the first pulley via belt drive, and the second pulley is connected to the third pulley via belt drive.

[0015] Preferably, the speed of the belt shaft at the motor output end is greater than the speed of the first pulley, completing the first-stage speed reduction of the motor; the speed of the second pulley is greater than the speed of the third pulley, completing the second-stage speed reduction.

[0016] Preferably, both the first connecting shaft and the second connecting shaft are connected to the frame via U-shaped blocks. The frame is provided with multiple vertical adjustment holes for the U-shaped blocks to be adjusted up and down to connect with the frame.

[0017] Compared with existing technologies, this invention has the following beneficial technical effects: Firstly, it uses a common motor for multi-stage speed reduction and then a swing arm to drive the vibrating frame to oscillate within a small range, resulting in lower costs. Secondly, it achieves rapid screening through multiple screening plates, resulting in a shorter screening path and higher screening efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0019] Figure 2 and Figure 3 for Figure 1 A structural diagram from another perspective;

[0020] Figure 4 This is a schematic diagram of the structure inside the wind turbine.

[0021] Reference numerals in the attached diagram: 1. Frame; 2. Storage bin; 3. Feed bin; 4. Discharge plate; 5. Opening adjustment rod; 6. Arc-shaped limit plate; 7. Adjusting wheel; 8. Air chamber; 9. Air chamber door; 10. Spring buckle; 11. Dust outlet; 12. Slag outlet; 13. Blower motor; 14. Rotating shaft; 15. Fan blade; 16. Air inlet; 17. Vibrating frame; 18. Rocker arm; 19. Top screening plate; 20. Middle screening plate; 21. Bottom screening plate; 22. Motor; 23. First pulley; 24. Second pulley; 25. Third pulley; 26. First connecting shaft; 27. Second connecting shaft; 28. Pulling arm; 29. ​​U-shaped block; 30. Adjustment hole; 31. Turntable. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-3 As shown, the present invention proposes a multi-stage speed-reducing stable vibration screening machine, including a frame 1; and further including:

[0024] Storage bin 2 is set on frame 1. Feed bin 3 is set on storage bin 2. Discharge mechanism is set at the bottom of feed bin 3 where it connects with storage bin 2. Discharge port is set at the middle position of the bottom of storage bin 2.

[0025] A blower 8 is set at one end of a storage bin 2, and a dust outlet 11 is set at the other end of the storage bin 2. A blower mechanism is set inside the blower 8, and blows air to the dust outlet 11 through the blower mechanism.

[0026] The slag discharge chute 12 is located at the bottom of the storage bin 2 near the dust outlet 11;

[0027] Vibrating frame 17 is mounted on frame 1 by swinging arm 18. Screening mechanism is mounted on vibrating frame 17 and located below the discharge port.

[0028] A vibration mechanism is provided on the frame 1, which drives the vibration frame 17 to vibrate.

[0029] Example 2

[0030] This utility model proposes a multi-stage speed reduction stable vibration screening machine. Compared with Embodiment 1, this embodiment details the structure of the discharge mechanism, the blowing mechanism, and the screening mechanism.

[0031] like Figure 1As shown, the discharge mechanism includes a rotating rod rotatably mounted on the discharge port at the bottom of the feed hopper 3, a discharge plate 4 mounted on the rotating rod, an opening adjustment rod 5 mounted at the end of the rotating rod, an arc-shaped limiting plate 6 mounted on the outer wall of the storage hopper 2, and an adjustment wheel 7 rotatably connected to the other end of the opening adjustment rod 5. The threaded rod on the adjustment wheel 7 passes through the arc-shaped groove on the arc-shaped limiting plate 6 and is locked by a nut. The adjustment wheel 7 drives the opening adjustment rod 5 to rotate, thereby changing the discharge angle of the discharge plate 4.

[0032] like Figure 4 As shown, the blower mechanism includes a blower motor 13 installed inside the blower chamber 8, a rotating shaft 14 connected to the output shaft of the blower motor 13, and multiple fan blades 15 installed on the rotating shaft 14; air inlets 16 are provided on both sides of the blower chamber 8; in order to facilitate the maintenance of the structure inside the blower chamber 8, a blower door 9 is provided on the blower chamber 8, and the blower door 9 is connected to the blower chamber 8 by a spring clip 10.

[0033] like Figure 3 As shown, the screening mechanism includes a top screening plate 19, a middle screening plate 20, and a bottom screening plate 21 arranged sequentially from top to bottom. The discharge ends of the three plates are staggered in the vertical direction. The diameter of the screening holes on the top screening plate 19 is larger than that on the middle screening plate 20. The bottom screening plate 21 has no screening holes. The screening mechanism is set at an angle. The material falling from the discharge mechanism is blown out by the blower mechanism. Lighter dust and impurities are blown out from the dust outlet 11. Slightly lighter impurities are discharged through the slag outlet 12. The remaining material falls from the discharge outlet. The material falling from the discharge outlet first falls onto the top screening plate 19 and moves downward along the top screening plate 19 under vibration. Screening is carried out while moving. Finally, the material is discharged after passing through three layers of screening.

[0034] Example 3

[0035] This utility model proposes a multi-stage speed reduction stable vibration screening machine. Compared with Embodiment 2, this embodiment details the structure of the vibration mechanism.

[0036] like Figures 2-3As shown, the vibration mechanism includes a motor 22 mounted on a frame 1, a first connecting shaft 26 rotatably mounted on the frame 1, a first pulley 23 and a second pulley 24 mounted on the first connecting shaft 26, a second connecting shaft 27 rotatably mounted on the frame 1 and located on the first connecting shaft 26, a third pulley 25 and a turntable 31 mounted at both ends of the second connecting shaft 27, and a pull arm 28 rotatably mounted on the turntable 31 but not on the same axis as the turntable 31. The pull arm 28 is rotatably connected to the vibration frame 17. The output shaft of the motor 22 is a belt shaft, which is connected to the first pulley 23 via belt drive, and the second pulley 24 is connected to the third pulley 25 via belt drive. Through a crankshaft connecting rod mechanism, the rotation of the second connecting shaft 27 is converted into the back-and-forth movement of the pull arm 28, and then the multiple rotatably connected connecting rods of the pull arm 28 drive the vibration frame 17 to swing up, down, left, and right within a small range.

[0037] like Figure 2 As shown, furthermore, the speed of the belt shaft at the output end of motor 22 is greater than the speed of the first pulley 23, that is, the diameter of the first pulley 23 is greater than the diameter of the belt shaft, completing the first-stage speed reduction of motor 22. The speed of the second pulley 24 is greater than the speed of the third pulley 25, that is, the diameter of the second pulley 24 is smaller than the diameter of the third pulley 25, completing the second-stage speed reduction. The stability of the output is improved through multi-stage speed reduction. The first connecting shaft 26 and the second connecting shaft 27 are both connected to the frame 1 through U-shaped blocks 29. The frame 1 is provided with multiple vertical adjustment holes 30 for the U-shaped blocks 29 to be adjusted up and down to connect with the frame 1. The U-shaped blocks 29, the first connecting shaft 26, and the second connecting shaft 27 are all connected by bearings.

[0038] In summary, when using this utility model, the material is fed into the feeding hopper 3. After adjusting the opening of the discharge plate 4, the material enters the storage hopper 2. First, the lighter dust and impurities are discharged through the dust outlet 11 by the air blower. The slightly heavier impurities are discharged through the slag outlet 12. The remaining material falls onto the top screening plate 19 through the discharge outlet. The motor 22 starts and drives the second connecting shaft 27 to rotate after passing through two stages of speed reduction. Then, the crankshaft connecting rod drives the vibrating frame 17 to vibrate up and down and left and right. After being screened by the screening mechanism, the material is discharged from the discharge end. According to the different size characteristics of the material, it is discharged from different screening plates. After multiple stages of speed reduction, vibration and multiple stages of screening, the final screening is completed and clean material is obtained.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A multi-stage speed-reducing stable vibration screening machine, comprising a frame (1); characterized in that, Also includes: Storage bin (2) is set on frame (1). Feed bin (3) is set on storage bin (2). Discharge mechanism is set at the bottom of feed bin (3) where it connects with storage bin (2). Discharge port is set at the middle position of the bottom of storage bin (2). A blower (8) is set at one end of a storage bin (2), and a dust outlet (11) is set at the other end of the storage bin (2). A blower mechanism is set inside the blower (8) to blow air to the dust outlet (11). The slag discharge chute (12) is located at the bottom of the storage silo (2) near the dust outlet (11); A vibrating frame (17) is mounted on a frame (1) by swinging a rocker arm (18). A screening mechanism is mounted on the vibrating frame (17) and is located below the discharge port. And a vibration mechanism is installed on the frame (1), and the vibration mechanism drives the vibration frame (17) to vibrate.

2. The multi-stage speed reduction stable vibration screening machine according to claim 1, characterized in that, The discharge mechanism includes a rotating rod rotatably mounted on the discharge port at the bottom of the feed hopper (3), a discharge plate (4) mounted on the rotating rod, an opening adjustment rod (5) mounted at the end of the rotating rod, an arc-shaped limiting plate (6) mounted on the outer wall of the storage hopper (2), and an adjustment wheel (7) rotatably connected to the other end of the opening adjustment rod (5). The threaded rod on the adjustment wheel (7) passes through the arc groove on the arc-shaped limiting plate (6) and is locked by a nut.

3. The multi-stage speed reduction stable vibration screening machine according to claim 1, characterized in that, The blower mechanism includes a blower motor (13) installed in the air chamber (8), a rotating shaft (14) connected to the output shaft of the blower motor (13), and multiple fan blades (15) installed on the rotating shaft (14).

4. The multi-stage speed reduction stable vibration screening machine according to claim 1, characterized in that, The screening mechanism includes a top screening plate (19), a middle screening plate (20), and a bottom screening plate (21) arranged from top to bottom. The discharge ends of the three plates are staggered in the vertical direction. The screening hole diameter on the top screening plate (19) is larger than that on the middle screening plate (20). There are no screening holes on the bottom screening plate (21). The screening mechanism is set at an angle.

5. The multi-stage speed reduction stable vibration screening machine according to claim 1, characterized in that, The vibration mechanism includes a motor (22) mounted on a frame (1), a first connecting shaft (26) rotatably mounted on the frame (1), a first pulley (23) and a second pulley (24) mounted on the first connecting shaft (26), a second connecting shaft (27) rotatably mounted on the frame (1) and located on the first connecting shaft (26), a third pulley (25) and a turntable (31) mounted at both ends of the second connecting shaft (27), and a pulling arm (28) rotatably mounted on the turntable (31) but on a different axis from the turntable (31). The pulling arm (28) is rotatably connected to the vibration frame (17). The output shaft of the motor (22) is a belt shaft, which is connected to the first pulley (23) via belt drive, and the second pulley (24) is connected to the third pulley (25) via belt drive.

6. The multi-stage speed reduction stable vibration screening machine according to claim 5, characterized in that, The speed of the belt shaft at the output end of the motor (22) is greater than the speed of the first pulley (23), thus completing the first-stage speed reduction of the motor (22). The speed of the second pulley (24) is greater than the speed of the third pulley (25), thus completing the second-stage speed reduction.

7. The multi-stage speed reduction stable vibration screening machine according to claim 6, characterized in that, The first connecting shaft (26) and the second connecting shaft (27) are both connected to the frame (1) through a U-shaped block (29). The frame (1) is provided with multiple vertical adjustment holes (30) for the U-shaped block (29) to be adjusted up and down and then connected to the frame (1).

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