Kaolin spiral auger anti-sticking conveyor structure

Abstract

This utility model relates to the field of conveying equipment technology and discloses a kaolin spiral auger anti-sticking conveying structure, including a support platform. A discharge cylinder is fixedly connected to the top right side of the support platform. A shaftless auger is installed on the inner wall of the discharge cylinder. A connecting plate is fixedly connected to the left end of the shaftless auger. The left end of the outer wall of the connecting plate passes through the left end of the discharge cylinder and is slidably connected to a hollow bevel gear. A DC motor is fixedly connected to the top front side of the support platform, and a U-shaped bracket is fixedly connected to the top left end of the support platform. In this utility model, a cam pushes the shaftless auger to the left, and the return spring is compressed and released, causing the shaftless auger to return to the right, generating reciprocating linear vibration. The rotation of the right-side pulley drives the bevel gear to rotate, which meshes with the hollow bevel gear to rotate the shaftless auger, realizing a conveying mode that combines spiral propulsion and reciprocating vibration of kaolin, reducing adhesion.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and in particular to a kaolin spiral auger anti-sticking conveying structure. Background Technology

[0002] Kaolin is a key raw material in the ceramics, papermaking, and coatings industries. The stability of its transportation process directly affects production efficiency and product quality. Due to its compact structure and continuous transportation, the screw conveyor has become the preferred equipment for kaolin transportation. However, kaolin has the characteristics of high viscosity and easy moisture absorption and clumping. It is very easy to adhere to the equipment surface during transportation. Therefore, the development of an anti-sticking conveying structure for kaolin screw conveyors has become an important issue to ensure efficient production.

[0003] Early kaolin screw conveyors mainly consisted of spiral blades, a screw shaft, and a shell, with a simple structure. They relied on the rotation of the spiral blades to propel the material forward. However, this traditional structure was prone to problems with highly viscous kaolin, as the material would adhere to the blade surface. As the operating time increased, the material accumulated on the blade surface, reducing conveying efficiency and even causing equipment blockage and shutdown. To solve this problem, existing technologies have reduced material adhesion to some extent by improving the blade material and adding air blowing holes to the shell. However, these improvements still have limitations: although the air blowing structure can blow off some surface material, when the kaolin has high moisture content or excessive viscosity, the air blowing cannot penetrate the material layer, resulting in the inability to remove the material in the dead corner area at the blade root. Even with anti-sticking blades, the continuous friction between the material and the blades during long-term operation will still wear down the anti-sticking coating, increasing the surface roughness of the blades and causing kaolin to stick again. Ultimately, this will cause the conveying efficiency to gradually decrease, making it difficult to meet the needs of long-term stable operation in industrial production. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a kaolin spiral auger anti-sticking conveying structure, which aims to improve the problem in the existing technology where, during long-term operation, the continuous friction between the material and the blades still causes the anti-sticking coating to wear down, resulting in increased blade surface roughness and causing kaolin to stick again.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a kaolin spiral auger anti-sticking conveying structure, including a support platform, a discharge cylinder fixedly connected to the top right side of the support platform, a shaftless auger provided on the inner wall of the discharge cylinder, a connecting plate fixedly connected to the left end of the shaftless auger, a hollow bevel gear slidably connected to the left end of the outer wall of the connecting plate penetrating the left end of the discharge cylinder, a DC motor fixedly connected to the top front side of the support platform, a U-shaped bracket fixedly connected to the top left end of the support platform, pulleys fixedly connected to the front side of the U-shaped bracket and the output end of the DC motor, belts provided on the outer walls of both pulleys, a cam fixedly connected to the rear side of the left pulley penetrating the front side of the U-shaped bracket, a bevel gear fixedly connected to the rear side of the right pulley, a return spring fixedly connected to the left end of the connecting plate, the other end of the return spring fixedly connected to the top of the support platform, and a preliminary crushing mechanism provided on the top of the outer wall of the discharge cylinder, the preliminary crushing mechanism being used to perform preliminary crushing of the fed kaolin.

[0006] As a further description of the above technical solution:

[0007] The preliminary crushing mechanism includes a processing barrel, the bottom of which is connected to the top of the outer wall of the discharge cylinder. A servo motor is fixedly connected to the top of the processing barrel. The output end of the servo motor passes through the top of the processing barrel and is fixedly connected to a rotating shaft. Multiple connecting rods are fixedly connected to the outer wall of the rotating shaft. A crushing inclined cutting plate is fixedly connected to the outer wall of each connecting rod. A spiral push plate is fixedly connected to the other end of each of the multiple connecting rods.

[0008] As a further description of the above technical solution:

[0009] The top center of the outer wall of the discharge cylinder is connected to an air nozzle valve. An arc-shaped cavity is opened inside the discharge cylinder. Multiple exhaust holes are opened at the top of the inner wall of the discharge cylinder, and the tops of the multiple exhaust holes are connected to the bottom of the arc-shaped cavity.

[0010] As a further description of the above technical solution:

[0011] Balance wheels are fixedly connected to the left and right sides of the outer wall of the connecting plate, and multiple holes are equidistantly opened on the right side of the balance wheel.

[0012] As a further description of the above technical solution:

[0013] Multiple limiting strips are fixedly connected to the left side of the outer wall of the connecting plate, and the outer walls of the multiple limiting strips are slidably connected to the inner wall of the hollow bevel gear.

[0014] As a further description of the above technical solution:

[0015] The right side of the discharge cylinder is connected to a discharge block, and a U-shaped limiting plate is fixedly connected to the bottom of the outer wall of the discharge cylinder. The bottom of the U-shaped limiting plate is fixedly connected to the top right side of the support platform.

[0016] As a further description of the above technical solution:

[0017] A flange ring is fixedly connected to the left side of the outer wall of the discharge cylinder, and multiple rollers are rotatably connected to the outer wall of the cam.

[0018] As a further description of the above technical solution:

[0019] The outer wall size of the shaftless auger is the same as the inner wall size of the discharge cylinder, and the outer wall of the bevel gear meshes with the outer wall of the hollow bevel gear.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, after the DC motor is started, it drives the right pulley to rotate. The power is transmitted to the left pulley through the belt, causing the cam to rotate synchronously. The cam pushes the shaftless auger to move to the left. After the return spring is compressed, it is released, causing the shaftless auger to return to the right and generate reciprocating linear vibration. At the same time, the rotation of the right pulley drives the bevel gear to rotate, which meshes with the hollow bevel gear, causing the shaftless auger to rotate. This realizes a conveying mode that combines the spiral propulsion and reciprocating vibration of kaolin, reducing adhesion.

[0022] 2. In this utility model, the servo motor starts and drives the rotating shaft and connecting rod to rotate. The crushing inclined cutting plate initially crushes the kaolin, reducing its degree of agglomeration and the risk of adhesion. The spiral pusher pushes the crushed kaolin to the bottom of the processing tank and smoothly enters the discharge cylinder, thereby reducing the occurrence of kaolin agglomeration throughout the process. Attached Figure Description

[0023] Figure 1 This is a perspective view of the kaolin spiral auger anti-sticking conveying structure proposed in this utility model;

[0024] Figure 2 This is a front view of the kaolin spiral auger anti-sticking conveying structure proposed in this utility model;

[0025] Figure 3 This is a top view of the kaolin spiral auger anti-sticking conveying structure proposed in this utility model;

[0026] Figure 4 This is a cross-sectional view of the discharge cylinder of the kaolin spiral auger anti-sticking conveying structure proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the U-shaped support structure of the kaolin spiral auger anti-sticking conveying structure proposed in this utility model.

[0028] Legend:

[0029] 1. Support platform; 2. Preliminary crushing mechanism; 201. Processing tank; 202. Servo motor; 203. Rotating shaft; 204. Connecting rod; 205. Crushing inclined cutting plate; 206. Spiral pusher plate; 3. Discharge cylinder; 4. Shaftless auger; 5. Connecting disc; 6. Hollow bevel gear; 7. DC motor; 8. Pulley; 9. U-shaped bracket; 10. Belt; 11. Cam; 12. Bevel gear; 13. Return spring; 14. Air nozzle connecting valve; 15. Arc-shaped cavity; 16. Exhaust port; 17. Balance wheel; 18. Hole; 19. Limiting strip; 20. Discharge block; 21. U-shaped limiting plate; 22. Flange ring; 23. Roller. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of a kaolin spiral auger anti-sticking conveying structure, including a support platform 1. A discharge cylinder 3 is fixedly connected to the top right side of the support platform 1. A shaftless auger 4 is provided on the inner wall of the discharge cylinder 3. A connecting plate 5 is fixedly connected to the left end of the shaftless auger 4. The left end of the outer wall of the connecting plate 5 passes through the left end of the discharge cylinder 3 and is slidably connected to a hollow bevel gear 6. A DC motor 7 is fixedly connected to the top front side of the support platform 1. A U-shaped bracket 9 is fixedly connected to the top left end of the support platform 1. Pulleys 8 are fixedly connected to the front side of the U-shaped bracket 9 and the output end of the DC motor 7. The rotation of the right pulley 8 drives the bevel gear 12 to rotate. The bevel gear 12 meshes with the hollow bevel gear 6, driving the shaftless auger 4 to rotate. A belt 10 is provided on the outer wall of both pulleys 8. The rear side of the left pulley 8 passes through... A cam 11 is fixedly connected to the front side of the U-shaped bracket 9. After the DC motor 7 starts, its output end drives the right pulley 8 to rotate. The power is transmitted to the left pulley 8 through the belt 10, so that the left pulley 8 and the cam 11 fixed to its rear side rotate synchronously. A bevel gear 12 is fixedly connected to the rear side of the right pulley 8. A return spring 13 is fixedly connected to the left end of the connecting plate 5. The other end of the return spring 13 is fixedly connected to the top of the support platform 1. The rotation of the cam 11 pushes the connecting plate 5 and the shaftless auger 4 to move to the left. At this time, the return spring 13 is compressed. When the cam 11 rotates to a specific position, the return spring 13 releases its elastic force and pushes the shaftless auger 4 to return to the right. A preliminary crushing mechanism 2 is provided on the top of the outer wall of the discharge cylinder 3. The preliminary crushing mechanism 2 is used to perform preliminary crushing on the fed kaolin.

[0032] Specifically, after the DC motor 7 starts, its output drives the right pulley 8 to rotate, and transmits the power to the left pulley 8 through the belt 10, so that the left pulley 8 and the cam 11 fixed behind it rotate synchronously. The rotation of the cam 11 pushes the connecting plate 5 and the shaftless auger 4 to move to the left. At this time, the return spring 13 is compressed. When the cam 11 rotates to a specific position, the return spring 13 releases its elastic force and pushes the shaftless auger 4 to return to the right. This cycle is repeated, so that the shaftless auger 4 generates reciprocating linear vibration. At the same time, the rotation of the right pulley 8 drives the bevel gear 12 to rotate. The bevel gear 12 meshes with the hollow bevel gear 6, driving the shaftless auger 4 to rotate itself, realizing the conveying mode of kaolin in the discharge cylinder 3 that combines spiral propulsion and reciprocating vibration, effectively reducing the adhesion of kaolin on the shaftless auger 4.

[0033] Reference Figure 1 , Figure 3 and Figure 4The preliminary crushing mechanism 2 includes a processing barrel 201. The bottom end of the processing barrel 201 is connected to the top of the outer wall of the discharge cylinder 3. A servo motor 202 is fixedly connected to the top of the processing barrel 201. The output end of the servo motor 202 passes through the top of the processing barrel 201 and is fixedly connected to a rotating shaft 203. Multiple connecting rods 204 are fixedly connected to the outer wall of the rotating shaft 203. When the servo motor 202 is started, its output end drives the rotating shaft 203 to rotate. The connecting rods 204 on the rotating shaft 203 rotate accordingly. A crushing inclined cutting plate 205 is fixedly connected to the outer wall of the connecting rods 204. The crushing inclined cutting plate 205 on the connecting rods 204 performs preliminary crushing on the kaolin entering the processing barrel 201. The other end of each of the multiple connecting rods 204 is fixedly connected to a spiral pusher plate 206. The spiral pusher plate 206 pushes the crushed kaolin to the bottom of the processing barrel 201.

[0034] Specifically, before the kaolin enters the discharge cylinder 3, the servo motor 202 starts, and its output drives the rotating shaft 203 to rotate. The connecting rod 204 on the rotating shaft 203 rotates accordingly. The crushing inclined cutting plate 205 on the connecting rod 204 performs preliminary crushing on the kaolin entering the processing tank 201, reducing the degree of kaolin agglomeration and reducing the risk of adhesion during subsequent transportation. At the same time, the spiral pusher plate 206 pushes the crushed kaolin to the bottom of the processing tank 201, so that it can smoothly enter the discharge cylinder 3. With the coordinated work of multiple structures, the adhesion of kaolin is reduced throughout the entire process from pretreatment to transportation.

[0035] Reference Figure 1 , Figure 4 and Figure 5 The top center of the outer wall of the discharge cylinder 3 is connected to an air nozzle connecting valve 14, which serves as an interface for connecting an external air source and can be connected to a compressed air pipeline. An arc-shaped cavity 15 is formed inside the discharge cylinder 3, surrounding it and serving as an airflow distribution chamber. Multiple exhaust holes 16 are formed at the top of the inner wall of the discharge cylinder 3, with the tops of each exhaust hole 16 connected to the bottom of the arc-shaped cavity 15. The exhaust holes 16 allow high-pressure airflow to pass through and be ejected as a high-speed jet. Balance wheels 17 are fixedly connected to the left and right sides of the outer wall of the connecting disc 5. The balance wheels 17 are shaftless. During the reciprocating vibration of the auger 4, the lateral force generated by the vibration is balanced by its own rotational inertia, preventing the auger from shifting or jamming due to uneven force. Multiple holes 18 are equidistantly opened on the right side of the balance wheel 17. The holes 18 are mainly used to reduce the weight of the balance wheel 17. Multiple limiting strips 19 are fixedly connected to the left side of the outer wall of the connecting plate 5. The outer walls of the multiple limiting strips 19 are slidably connected to the inner wall of the hollow bevel gear 6. The limiting strips 19 ensure that the shaftless auger 4 can still maintain torque transmission with the hollow bevel gear 6 through the limiting strips 19 when vibrating axially, so as to realize the composite motion of rotation and vibration.

[0036] Specifically, the air nozzle connection valve 14 serves as an interface for an external air source, connecting to a compressed air pipeline to provide an anti-sticking purging function for the inside of the discharge cylinder 3. The arc-shaped cavity 15 surrounds the inside of the discharge cylinder 3, serving as an airflow distribution chamber. Its function is to evenly distribute the compressed air entering from the air nozzle connection valve 14 to each exhaust port 16, ensuring that the airflow covers the entire inner wall of the discharge cylinder 3 and preventing localized material accumulation. The exhaust ports 16 then eject the high-pressure airflow in the form of a high-speed jet, which directly acts on the surface of the shaftless auger 4. The kaolin on the surface is broken down by the impact and shearing force of the airflow. During the reciprocating vibration of the shaftless auger 4, the balance wheel 17 balances the lateral force generated by the vibration through its own rotational inertia, preventing the auger from shifting or jamming due to uneven force. The hole 18 above it is mainly to reduce the weight of the balance wheel 17 and reduce the moment of inertia. The limiting strip 19 ensures that the shaftless auger 4 can still maintain torque transmission with the hollow bevel gear 6 through the limiting strip 19 when vibrating axially, so as to realize the composite motion of rotation and vibration.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The right side of the discharge cylinder 3 is connected to a discharge block 20, which prevents dust from overflowing from the discharge port. A U-shaped limiting plate 21 is fixedly connected to the bottom of the outer wall of the discharge cylinder 3. The bottom of the U-shaped limiting plate 21 is fixedly connected to the top right side of the support platform 1. The U-shaped limiting plate 21 enhances the overall stability of the equipment. A flange ring 22 is fixedly connected to the left side of the outer wall of the discharge cylinder 3. The flange ring 22 facilitates the disassembly and maintenance of the equipment. Multiple rollers 23 are rotatably connected to the outer wall of the cam 11. When the rollers 23 contact the cam 11, rolling friction replaces sliding friction, significantly reducing friction. The outer wall size of the shaftless auger 4 is the same as the inner wall size of the discharge cylinder 3, ensuring that the blade edges can approach the cylinder wall as close as possible during the rotation and vibration of the auger, reducing the material retention space. The outer wall of the bevel gear 12 meshes with the outer wall of the hollow bevel gear 6, realizing the conversion of power from the horizontal direction to the axial direction.

[0038] Specifically, the discharge block 20 prevents dust from overflowing from the discharge port, while the U-shaped limit plate 21 enhances the overall stability of the equipment, especially reducing noise and fatigue damage during high-frequency vibration. The flange ring 22 facilitates the disassembly and maintenance of the equipment, allowing for quick replacement of worn discharge cylinder 3. Meanwhile, when the roller 23 contacts the cam 11, rolling friction replaces sliding friction, significantly reducing friction and energy loss while extending the service life of the cam 11 and connecting disc 5. The outer wall size of the shaftless auger 4 is the same as the inner wall size of the discharge cylinder 3, ensuring that the blade edges can approach the cylinder wall as closely as possible during rotation and vibration, reducing material retention space and avoiding material accumulation and reduced conveying efficiency due to excessive gaps. The outer wall of the bevel gear 12 meshes with the outer wall of the hollow bevel gear 6, realizing the conversion of power from the horizontal direction to the axial direction.

[0039] Working principle: First, during the operation of the conveying device, after the DC motor 7 starts, its output end drives the right pulley 8 to rotate. The power is transmitted to the left pulley 8 through the belt 10, causing the left pulley 8 and the cam 11 fixed behind it to rotate synchronously. The rotation of the cam 11 pushes the connecting plate 5 and the shaftless auger 4 to move to the left. At this time, the return spring 13 is compressed. When the cam 11 rotates to a specific position, the return spring 13 releases its elasticity, pushing the shaftless auger 4 to return to the right, forming a cycle, so that the shaftless auger 4 generates reciprocating linear vibration. At the same time, the rotation of the right pulley 8 drives the bevel gear 12 to rotate. The bevel gear 12 meshes with the hollow bevel gear 6, driving the shaftless auger 4 to rotate itself, realizing the conveying mode of kaolin in the discharge cylinder 3 that combines spiral propulsion and reciprocating vibration, effectively reducing the adhesion of kaolin on the shaftless auger 4.

[0040] Furthermore, through the preliminary crushing mechanism 2, before the kaolin enters the discharge cylinder 3, the servo motor 202 is started, and its output end drives the rotating shaft 203 to rotate. The connecting rod 204 on the rotating shaft 203 rotates accordingly. The crushing inclined cutting plate 205 on the connecting rod 204 performs preliminary crushing on the kaolin entering the processing barrel 201, reducing the degree of kaolin agglomeration and reducing the risk of adhesion during subsequent transportation. At the same time, the spiral pusher plate 206 pushes the crushed kaolin to the bottom of the processing barrel 201, so that it can smoothly enter the discharge cylinder 3. With the coordinated work of multiple structures, the adhesion of kaolin is reduced throughout the entire process from pretreatment to transportation, ensuring the efficient transportation of kaolin.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A kaolin spiral auger anti-sticking conveying structure, including a support platform (1), characterized in that: A discharge cylinder (3) is fixedly connected to the top right side of the support platform (1). A shaftless auger (4) is provided on the inner wall of the discharge cylinder (3). A connecting plate (5) is fixedly connected to the left end of the shaftless auger (4). The left end of the outer wall of the connecting plate (5) passes through the left end of the discharge cylinder (3) and is slidably connected to a hollow bevel gear (6). A DC motor (7) is fixedly connected to the top front side of the support platform (1). A U-shaped bracket (9) is fixedly connected to the top left end of the support platform (1). A pulley (8) is fixedly connected to the front side of the U-shaped bracket (9) and the output end of the DC motor (7). Both pulleys (8) are provided with belts (10) on their outer walls. The rear side of the left pulley (8) passes through the front side of the U-shaped bracket (9) and is fixedly connected to a cam (11). The rear side of the right pulley (8) is fixedly connected to a bevel gear (12). The left end of the connecting plate (5) is fixedly connected to a return spring (13). The other end of the return spring (13) is fixedly connected to the top of the support platform (1). The top of the outer wall of the discharge cylinder (3) is provided with a preliminary crushing mechanism (2). The preliminary crushing mechanism (2) is used to perform preliminary crushing on the fed kaolin.

2. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: The preliminary crushing mechanism (2) includes a processing barrel (201). The bottom end of the processing barrel (201) is connected to the top of the outer wall of the discharge cylinder (3). A servo motor (202) is fixedly connected to the top of the processing barrel (201). The output end of the servo motor (202) passes through the top of the processing barrel (201) and is fixedly connected to a rotating shaft (203). Multiple connecting rods (204) are fixedly connected to the outer wall of the rotating shaft (203). A crushing inclined cutting plate (205) is fixedly connected to the outer wall of the connecting rods (204). A spiral pusher plate (206) is fixedly connected to the other end of each of the multiple connecting rods (204).

3. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: The top of the outer wall of the discharge cylinder (3) is connected to an air nozzle connecting valve (14). An arc-shaped cavity (15) is opened inside the discharge cylinder (3). Multiple exhaust holes (16) are opened at the top of the inner wall of the discharge cylinder (3). The top of the multiple exhaust holes (16) are connected to the bottom of the arc-shaped cavity (15).

4. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: Balance wheels (17) are fixedly connected to the left and right sides of the outer wall of the connecting disc (5), and multiple holes (18) are equidistantly opened on the right side of the balance wheel (17).

5. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: Multiple limiting strips (19) are fixedly connected to the left side of the outer wall of the connecting disc (5), and the outer walls of the multiple limiting strips (19) are slidably connected to the inner wall of the hollow bevel gear (6).

6. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: The right side of the discharge cylinder (3) is connected to the discharge block (20), and the bottom of the outer wall of the discharge cylinder (3) is fixedly connected to the U-shaped limiting plate (21). The bottom of the U-shaped limiting plate (21) is fixedly connected to the top right side of the support platform (1).

7. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: A flange ring (22) is fixedly connected to the left side of the outer wall of the discharge cylinder (3), and multiple rollers (23) are rotatably connected to the outer wall of the cam (11).

8. The kaolin spiral auger anti-sticking conveying structure according to claim 1, characterized in that: The outer wall size of the shaftless auger (4) is the same as the inner wall size of the discharge cylinder (3), and the outer wall of the bevel gear (12) meshes with the outer wall of the hollow bevel gear (6).

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