Anti-overflow vibrating screen feeding device

Abstract

The invention provides an anti-overflow vibrating screen feeding device which comprises a vibrating screen body, a feeding frame is arranged above the vibrating screen body, the inner wall of the feeding frame is rotatably connected with a rotating rod, the outer surface of the rotating rod is fixedly connected with two deflection plates, one end of the rotating rod penetrates through the feeding frame and is fixedly connected with a pinion, and the other end of the rotating rod is fixedly connected with a rotating shaft. And a motor is installed on one side face of the feeding frame, a large gear is installed at the output end of the motor, the large gear is meshed with the small gear, and a uniform material guiding structure is arranged in the feeding frame. Through cooperation of a motor, a large gear, a small gear, a rotating rod and a deflection plate, the large gear can be driven to rotate through work of the motor, meanwhile, the small gear can drive the rotating rod to rotate, the rotating rod can drive the deflection plate to deflect in a reciprocating mode, the gap between the deflection plate and the feeding frame can be changed in a reciprocating mode, and therefore the falling amount of materials is accurately controlled; the overflow condition caused by the fact that a large amount of materials enter the vibrating screen body once is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vibrating screen equipment, and particularly to an anti-overflow vibrating screen feeding device. Background Art

[0002] As a commonly used material screening device, the vibrating screen plays an important role in industrial production. It generates an exciting force through a vibrating motor, causing the screen surface tightly fixed on the screen box to vibrate at a high frequency. Its vibration trajectories are diverse, including circular, elliptical, and linear, etc. Each trajectory is adapted to different material characteristics and screening requirements.

[0003] Traditional feeding devices often cannot accurately control the feeding amount and feeding speed. When the feeding amount is too large or the feeding speed is too fast, the material is likely to accumulate on the screen surface, exceeding the bearing capacity of the screen surface, thus resulting in the occurrence of overflow phenomenon. This will cause waste of materials and it is difficult to ensure that the materials are evenly distributed on the screen surface. Local material accumulation or vacancy is likely to occur, which will lead to a reduction in the screening efficiency of the screen surface. Some materials cannot be fully screened, affecting the quality and accuracy of the product. Therefore, we provide an anti-overflow vibrating screen feeding device. Summary of the Invention

[0004] The present invention provides an anti-overflow vibrating screen feeding device to solve the technical problems existing in the above background art.

[0005] The purpose and efficacy of an anti-overflow vibrating screen feeding device of the present invention are achieved by the following specific technical means: An anti-overflow vibrating screen feeding device includes a vibrating screen body. Above the vibrating screen body, there is a feeding frame. A rotating rod is rotatably connected to the inner wall of the feeding frame. Two deflecting plates are fixedly connected to the outer surface of the rotating rod. One end of the rotating rod penetrates through the feeding frame and is fixedly connected to a small gear. A motor is installed on one side surface of the feeding frame. The output end of the motor is installed with a large gear. The large gear meshes with the small gear. A uniform material guiding structure is arranged inside the feeding frame.

[0006] Preferably, the uniform material guiding structure includes two inclined guide plates fixedly connected to the inner wall of the feeding frame. Equal-distance arranged leakage slots are formed on the upper surface of each inclined guide plate.

[0007] Preferably, the uniform material guiding structure further includes a group of V-shaped material dividing blocks fixedly connected to the inner wall of the feeding frame. The group of V-shaped material dividing blocks are arranged at equal distances.

[0008] Preferably, a rotating shaft is rotatably connected to the inner wall of the feeding frame. Annularly arranged stirring rods are fixedly connected to the outer surface of the rotating shaft. One end of the rotating shaft penetrates through the feeding frame and is fixedly connected to a first pulley. A second pulley is installed on one side of the large gear. A toothed belt is sleeved on the outside of the first pulley and the outside of the second pulley.

[0009] Preferably, a protective shell is fixedly connected to one side surface of the feeding frame. Equally spaced heat dissipation grooves are provided on one side surface of the protective shell.

[0010] Preferably, a feeding hopper is fixedly connected to the upper surface of the feeding frame. The feeding hopper is integrally in the shape of a funnel that is wider at the top and narrower at the bottom.

[0011] Preferably, a sealing cover is hinged above the feeding hopper. A handle is provided on the upper surface of the sealing cover.

[0012] Beneficial effects:

[0013] 1. Through the cooperation of the motor, large gear, small gear, rotating rod and deflecting plate, the motor can drive the large gear to rotate. At the same time, the small gear drives the rotating rod to rotate, and the rotating rod can drive the deflecting plate to deflect reciprocally, which can reciprocally change the gap between the deflecting plate and the feeding frame, so as to accurately control the amount of material falling, and avoid the situation of overflow when a large amount of material enters the vibrating screen body at one time.

[0014] 2. Through the cooperation of the inclined guide plate, leakage trough and V-shaped material distribution block, the inclined guide plate can guide the flow of materials, enabling a small part of the materials to fall through the leakage trough, and the materials accumulated above slide downward towards the middle of the feeding frame. At the same time, the V-shaped material distribution block will separate and guide the falling materials again, allowing the materials to be evenly separated to both sides, so that the materials can be more evenly distributed on the screen surface of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall three-dimensional structure diagram of the present invention.

[0016] Figure 2 is the three-dimensional structure diagram of the feeding frame of the present invention.

[0017] Figure 3 is the three-dimensional structure diagram of the front cross-section of the deflecting plate of the present invention.

[0018] Figure 4 is the three-dimensional structure diagram of the side cross-section of the inclined guide plate of the present invention.

[0019] Figures 1 - 4 Among them, the corresponding relationship between the component names and the drawing reference numerals is:

[0020] 1. Vibration sieve body; 2. Feeding frame; 3. Protective shell; 4. Heat dissipation groove; 5. Material guiding hopper; 6. Sealing cover; 7. Rotating shaft; 8. First pulley; 9. Toothed belt; 10. Small gear; 11. Second pulley; 12. Large gear; 13. Motor; 14. Rotating rod; 15. Stirring rod; 16. Deflection plate; 17. Inclined guide plate; 18. Leakage trough; 19. V-shaped material dividing block. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] As shown in the attached Figure 1 And the attached Figure 2 As shown: A feeding device for an anti-overflow vibration sieve includes a vibration sieve body 1. Above the vibration sieve body 1, there is a feeding frame 2. The upper surface of the feeding frame 2 is fixedly connected with a material guiding hopper 5. The material guiding hopper 5 is in the shape of a funnel that is wide at the top and narrow at the bottom. The material guiding hopper 5 can store enough materials, so that materials can be continuously added into the feeding frame 2. Above the material guiding hopper 5, there is a hinged sealing cover 6. The upper surface of the sealing cover 6 is provided with a handle. The sealing cover 6 can block the upper part of the material guiding hopper 5, thus preventing materials from falling into the material guiding hopper 5.

[0023] As shown in the attached Figure 2 And the attached Figure 3 And the attached Figure 4 As shown: The inner wall of the feeding frame 2 is rotatably connected with a rotating rod 14. On the outer surface of the rotating rod 14, two deflection plates 16 are fixedly connected. One end of the rotating rod 14 penetrates through the feeding frame 2 and is fixedly connected with a small gear 10. On one side surface of the feeding frame 2, there is a motor 13 installed. The output end of the motor 13 is installed with a large gear 12. The large gear 12 meshes with the small gear 10. By the reciprocating operation of the motor 13, the large gear 12 will drive the small gear 10 and the rotating rod 14 to rotate reciprocally. At the same time, the deflection plates 16 will also deflect reciprocally, gradually changing the gap size between them and the feeding frame 2. When the gap increases, the materials will slowly fall downward from the gap under the action of their own gravity, just like the sand in an hourglass. When the gap decreases, the falling speed of the materials will also slow down accordingly. In this way, the amount of materials falling can be accurately controlled, preventing a large amount of materials from entering the vibration sieve body 1 at one time, thus effectively preventing the occurrence of overflow.

[0024] As shown in the attached Figure 2 And the attached Figure 3 And the attached Figure 4As shown in the figure: A rotating shaft 7 is rotatably connected to the inner wall of the feeding frame 2. An annularly arranged stirring rod 15 is fixedly connected to the outer surface of the rotating shaft 7. One end of the rotating shaft 7 penetrates through the feeding frame 2 and is fixedly connected to a first pulley 8. A second pulley 11 is installed on one side of the large gear 12. A toothed belt 9 is sleeved on the outside of the first pulley 8 and the outside of the second pulley 11. When the large gear 12 rotates, it will synchronously drive the second pulley 11 to rotate. At the same time, the toothed belt 9 will synchronously drive the first pulley 8 to rotate, and the rotating shaft 7 will drive the stirring rod 15 to deflect reciprocally. The stirring rod 15 will dredge the materials to prevent the materials from being blocked.

[0025] As shown in the attached Figure 1 figure: A protective shell 3 is fixedly connected to one side surface of the feeding frame 2. A plurality of heat dissipation grooves 4 arranged at equal distances are formed on one side surface of the protective shell 3. The protective shell 3 can protect equipment such as the motor 13 to prevent it from accidentally injuring the staff during operation. At the same time, the heat generated by the operation of the motor 13 can be dissipated through the heat dissipation grooves 4.

[0026] As shown in the attached Figure 3 figure: As shown in the attached Figure 4 figure: A uniform material guiding structure is arranged inside the feeding frame 2. The uniform material guiding structure includes two inclined guide plates 17 fixedly connected to the inner wall of the feeding frame 2. A plurality of material leakage grooves 18 arranged at equal distances are formed on the upper surface of each inclined guide plate 17. The materials falling downward will land on the inclined guide plates 17. The inclined guide plates 17 have a certain inclination angle to guide the flow of the materials. At the moment when the materials come into contact with the inclined guide plates 17, a small part of the materials will directly fall through the material leakage grooves 18, while the materials accumulated above will gradually slide towards the middle of the feeding frame 2 under the combined action of gravity and the inclination angle and finally fall, enabling the materials to enter the vibrating screen body 1 more dispersedly, avoiding the situation where the materials concentrate and fall at a certain place. It also includes a group of V-shaped material dividing blocks 19 fixedly connected to the inner wall of the feeding frame 2. The group of V-shaped material dividing blocks 19 are arranged at equal distances. On the path of the falling materials, the V-shaped material dividing blocks 19 will separate and guide the falling materials again. The tips of the V-shaped material dividing blocks 19 face upward. When the materials impact on the V-shaped material dividing blocks 19, they will be evenly separated to both sides, so that the materials can be more evenly distributed on the screen surface of the vibrating screen body 1, improving the screening efficiency, ensuring that each material particle can be fully screened, and avoiding the situation of excessive screening or insufficient screening in some parts.

[0027] Working principle: When in use, pour the material into the inside of the material guiding hopper 5, and the material will fall onto the feeding frame 2 and accumulate on the deflection plate 16. Then start the motor 13 to work reciprocally. The motor 13 will drive the large gear 12 to rotate reciprocally. At the same time, the large gear 12 will also drive the small gear 10 to rotate reciprocally. The rotating rod 14 will drive the deflection plate 16 to deflect reciprocally. When the deflection plate 16 deflects reciprocally, the gap between it and the feeding frame 2 will be gradually changed, and the material will fall downward from the gap. The continuous falling of the material is precisely controlled to prevent the situation of overflow when the material enters the vibrating screen body 1 at one time. The material falling downward will land on the inclined guide plate 17. The inclined guide plate 17 has a certain inclination angle, which will guide the flow direction of the material. At the moment when the material contacts the inclined guide plate 17, a small part of the material will directly fall through the leakage trough 18, while the material accumulated above will gradually slide towards the middle of the feeding frame 2 and finally fall under the combined action of gravity and the inclination angle. On the falling path of the material, the V-shaped material dividing block 19 will separate and guide the falling material again. When the material impacts on the V-shaped material dividing block 19, it will be evenly separated to both sides, so that the material can be more evenly distributed on the screen surface of the vibrating screen body 1.

Claims

1. An anti-overflow vibrating screen feeding device, comprising a vibrating screen body (1), characterized in that: A feed frame (2) is arranged above the vibration screen body (1), the inner wall of the feed frame (2) is rotatably connected to a rotating rod (14), the outer surface of the rotating rod (14) is fixedly connected to two deflection plates (16), one end of the rotating rod (14) passes through the feed frame (2) and is fixedly connected to a small gear (10), a motor (13) is installed on one side of the feed frame (2), a large gear (12) is installed at the output end of the motor (13), the large gear (12) is meshed with the small gear (10), and a uniform material guiding structure is arranged inside the feed frame (2).

2. The anti-overflow vibrating screen feeding device according to claim 1, characterized in that: The uniform material guiding structure comprises two inclined guide plates (17) fixedly connected to the inner wall of the feed frame (2), and the upper surface of each inclined guide plate (17) is provided with material leakage grooves (18) arranged at equal distances.

3. The anti-overflow vibrating screen feeding device according to claim 1, characterized in that: The uniform material guiding structure further comprises a group of V-shaped material dividing blocks (19) fixedly connected to the inner wall of the feed frame (2), wherein the V-shaped material dividing blocks (19) are arranged at equal distances.

4. The anti-overflow vibrating screen feeding device according to claim 1, characterized in that: The inner wall of the feed frame (2) is rotatably connected to a rotating shaft (7), the outer surface of the rotating shaft (7) is fixedly connected to agitating rods (15) arranged in an annular manner, one end of the rotating shaft (7) passes through the feed frame (2) and is fixedly connected to a first belt pulley (8), a second belt pulley (11) is installed on one side of the large gear (12), and the outside of the first belt pulley (8) and the outside of the second belt pulley (11) are jointly sleeved with a toothed belt (9).

5. The anti-overflow vibrating screen feeding device according to claim 1, characterized in that: A protective shell (3) is fixedly connected to one side of the feed frame (2), and heat dissipation grooves (4) arranged at equal distances are provided on one side of the protective shell (3).

6. The anti-overflow vibrating screen feeding device according to claim 1, characterized in that: A material guide hopper (5) is fixedly connected to the upper surface of the feed frame (2), and the material guide hopper (5) as a whole presents a funnel shape that is wide at the top and narrow at the bottom.

7. The anti-overflow vibrating screen feeding device according to claim 6, characterized in that: A sealing cover (6) is hingedly connected above the guide hopper (5), and a handle is provided on the upper surface of the sealing cover (6).

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