Shaftless screw conveyor capable of preventing material blockage

Abstract

The utility model relates to the field of screw conveyors, and discloses a shaftless screw conveyor capable of preventing material blockage, which comprises a plurality of transport boxes, the inner wall of each transport box is fixedly connected with a plurality of limiting blocks, transport blades are rotatably connected among the transport boxes, one side of one transport box is provided with a driving assembly, and the other side of one transport box is provided with a driving motor. A connecting strip is fixedly connected to the outer wall of each transport box, a plurality of fixing plates are fixedly connected to the outer wall of one connecting strip, a fixing assembly is arranged on one side of each fixing plate, and each fixing assembly comprises a plurality of connecting columns, a moving plate and a plurality of springs. According to the shaftless screw conveyor capable of preventing material blockage, the fixing blocks are held firstly and pulled outwards to unlock the two connecting strips, so that the effect that the two conveying boxes can be easily disassembled to overhaul internal components is achieved, the problem that the internal components of equipment are not easy to clean is solved, and the high efficiency of the shaftless screw conveyor capable of preventing material blockage is improved.

Description

Technical Field

[0001] This utility model relates to the field of screw conveyors, and more particularly to a shaftless screw conveyor for preventing material blockage. Background Technology

[0002] A screw conveyor is a device that uses rotating helical blades to propel materials in a specific direction. It mainly consists of a screw shaft, blades, casing, inlet and outlet ports, and a drive unit. Shaftless screw conveyors, which prevent material blockage, are highly favored because they are suitable for a wide range of materials and can handle easily clogging materials such as sludge and garbage. They can also smoothly transport highly viscous sludge from sewage treatment plants. They have good conveying performance, and the absence of a central shaft allows for more uniform material delivery, preventing material agglomeration and bridging. They also have low maintenance costs, reducing friction between the shaft and the material, thus reducing wear and malfunctions. Furthermore, they have excellent sealing properties, preventing material leakage and dust from flying, making them suitable for conveying materials with high environmental and hygiene requirements.

[0003] Existing shaftless screw conveyors designed to prevent material blockage operate on multiple principles. They utilize a motor to drive the rotation of helical blades, which are directly in contact with the material and have no central shaft support, generating axial thrust to push the material along the inner wall of the machine casing. Some employ a variable pitch design, with a smaller pitch at the feed end to aid material aggregation and compaction, and a larger pitch at the discharge end to loosen the material and prevent excessive compression. These devices often use materials with smooth surfaces and low coefficients of friction or are equipped with self-cleaning devices such as scrapers and cleaning brushes to achieve self-cleaning and anti-sticking. Simultaneously, they employ uniform feeding devices such as quantitative feeders and vibrating feeders to precisely control the feeding speed and flow rate, ensuring uniform material entry and comprehensively preventing material blockage.

[0004] In the actual use of shaftless screw conveyors designed to prevent material blockage, although the equipment has shown certain advantages in dealing with the problem of material blockage, it still has a significant shortcoming: its internal structure is relatively complex, and many components are closely arranged, making it extremely difficult to clean the internal components during routine maintenance. For example, material residues easily adhere to and accumulate in the gaps between the screw blades and the casing, and in the intermediate hanging bearings. Over time, this not only consumes a lot of cleaning time and labor costs, but also causes residual materials to affect the smoothness of subsequent material conveying due to incomplete cleaning, thus greatly restricting the high efficiency that the shaftless screw conveyor should have in preventing material blockage. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a shaftless screw conveyor to prevent material blockage, aiming to improve the problem that the internal components of the equipment are not easy to clean during use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a shaftless screw conveyor for preventing material blockage, comprising multiple transport boxes, each transport box having multiple limiting blocks fixedly connected to its inner wall, transport blades rotatably connected between the transport boxes, a drive assembly provided on one side of one of the transport boxes, a connecting strip fixedly connected to the outer wall of each transport box, multiple fixing plates fixedly connected to the outer wall of one of the connecting strips, and a fixing assembly provided on one side of each fixing plate;

[0007] Each of the fixing components includes multiple connecting posts, a movable plate, and multiple springs. One end of each connecting post is fixedly connected to one side of the fixed plate. One side of each movable plate is slidably connected to one side of the fixed plate. Each spring is disposed inside the movable plate. One end of each spring is fixedly connected to the inside of the movable plate, and the other end of each spring is fixedly connected to one end of a connecting post. A fixing block is fixedly connected to one side of each movable plate, and multiple limiting posts are fixedly connected to one side of each fixing block.

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

[0009] The drive assembly includes a protective shell and a motor. One side of the protective shell is fixedly connected to one side of one of the transport boxes, and the outer wall of the motor is fixedly connected to the inside of the protective shell. The output end of the motor is connected to one end of the transport leaf.

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

[0011] One of the transport boxes is fixedly connected to the bottom of a discharge pipe, and a fixing frame is fixedly connected to the inner wall of the discharge pipe.

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

[0013] The bottom of the fixed frame is fixedly connected to a protective shell, and the top of the fixed frame is rotatably connected to a connecting shaft.

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

[0015] A second motor is fixedly connected inside the protective shell, and the output end of the second motor is connected to one end of the connecting shaft.

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

[0017] Multiple stirring blades are fixedly connected to the outer wall of the connecting shaft, and the stirring blades are arranged in a ring array inside the discharge pipe.

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

[0019] The connecting columns are arranged in a symmetrical array on one side of the fixed plate, and the limiting columns are arranged in a symmetrical array on one side of the fixed block.

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

[0021] 1. In this utility model, the fixing block is first held and pulled outward to pull the limiting post out of the connecting strip and at the same time to release the connecting post from the moving plate, thereby unlocking the two connecting strips. Then, the two transport boxes are opened to inspect the internal equipment. This achieves the effect of easily disassembling the two transport boxes to inspect the internal components during equipment use, avoiding the problem that the internal components of the equipment are not easy to clean during equipment use, thereby improving the efficiency of the shaftless screw conveyor that prevents material blockage.

[0022] In this invention, the equipment is first started to begin transportation, and simultaneously, motor two is started to drive the connecting shaft to rotate, thereby causing the stirring blades to begin working. This disperses all the materials entering the discharge pipe, thus achieving the effect of dispersing the incoming raw materials during equipment use to prevent blockage of the discharge pipe and affecting the transportation work. It avoids the problem of material blockage in the discharge pipe affecting the use of the equipment, thereby improving the practicality of the shaftless screw conveyor that prevents material blockage. Attached Figure Description

[0023] Figure 1 This is a perspective view of the shaftless screw conveyor for preventing material blockage proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the transport box structure of the shaftless screw conveyor for preventing material blockage proposed in this utility model;

[0025] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the internal structure of the discharge pipe of the shaftless screw conveyor for preventing material blockage proposed in this utility model.

[0027] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0028] Legend:

[0029] 1. Transport box; 2. Limiting block; 3. Transport blade; 4. Protective shell; 5. Motor 1; 6. Connecting strip; 7. Fixing plate; 8. Connecting column; 9. Moving plate; 10. Spring; 11. Fixing block; 12. Limiting column; 13. Discharge pipe; 14. Fixing frame; 15. Protective shell; 16. Motor 2; 17. Connecting shaft; 18. Agitator blade. 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 Figures 1-3 An embodiment of this utility model provides a shaftless screw conveyor for preventing material blockage, comprising multiple transport boxes 1, each transport box 1 having multiple limiting blocks 2 fixedly connected to its inner wall to limit the movement range of transport blades 3, transport blades 3 being rotatably connected between the transport boxes 1 for transporting items, a drive assembly being provided on one side of one of the transport boxes 1 for driving the equipment, a connecting strip 6 being fixedly connected to the outer wall of each transport box 1 for connecting two transport boxes 1, multiple fixing plates 7 being fixedly connected to the outer wall of one of the connecting strips 6 for connecting fixing assemblies, and a fixing assembly being provided on one side of each fixing plate 7 for fixing two transport boxes 1;

[0032] Each fixing component includes multiple connecting posts 8, movable plates 9, and multiple springs 10. One end of each connecting post 8 is fixedly connected to one side of the fixing plate 7 to connect the fixing plate 7 and the movable plate 9. One side of each movable plate 9 is slidably connected to one side of the fixing plate 7 to fix the two transport boxes 1. Each spring 10 is disposed inside the movable plate 9 to provide elastic force to the movable plate 9. One end of each spring 10 is fixedly connected to the inside of the movable plate 9, and the other end of each spring 10 is fixedly connected to one end of the connecting post 8. A fixing block 11 is fixedly connected to one side of each movable plate 9 to connect a limiting post 12. Multiple limiting posts 12 are fixedly connected to one side of each fixing block 11 to restrict the movement of the two transport boxes 1. The driving component includes a protective shell 4 and a motor 5. One side of the protective shell 4 is fixedly connected to one side of one of the transport boxes 1 to protect the motor 5. The outer wall of the motor 5 is fixedly connected to the inside of the protective shell 4 to provide power for the rotation of the transport leaf 3. The output end of the motor 5 is connected to one end of the transport leaf 3.

[0033] Specifically, after the equipment has been running for a period of time, the transport box 1 needs to be disassembled to carry out a comprehensive inspection of the internal transport blades 3. The maintenance personnel first hold the fixing block 11, and then pull it outward with even force. As the pulling continues, the slender limiting post 12 is slowly pulled out from the inside of the connecting strip 6. At the same time, the connecting post 8 is also smoothly disengaged from the inside of the moving plate 9. With the completion of this series of actions, the two connecting strips 6 that were originally tightly connected are successfully unlocked. At this time, the maintenance personnel can slowly open the two transport boxes 1 to carry out a comprehensive and detailed inspection of the internal equipment.

[0034] Reference Figure 4 and Figure 5 One of the transport boxes 1 has a discharge pipe 13 fixedly connected to its bottom for discharging materials. A fixing frame 14 is fixedly connected to the inner wall of the discharge pipe 13 for fixing the stirring blades 18. A protective shell 15 is fixedly connected to the bottom of the fixing frame 14 for protecting the second motor 16. A connecting shaft 17 is rotatably connected to the top of the fixing frame 14 for connecting the stirring blades 18. The second motor 16 is fixedly connected inside the protective shell 15 to drive the stirring blades 18 to rotate. The output end of the second motor 16 is connected to one end of the connecting shaft 17. Multiple stirring blades 18 are fixedly connected to the outer wall of the connecting shaft 17 to prevent equipment blockage. The stirring blades 18 are arranged in a ring array inside the discharge pipe 13. The connecting columns 8 are arranged in a symmetrical array on one side of the fixing plate 7. The limiting columns 12 are arranged in a symmetrical array on one side of the fixing block 11.

[0035] Specifically, in the production process, the start button is pressed first to start the equipment to start the transportation work. At the same time, motor 16 is also turned on, driving the connecting shaft 17 to rotate at a high speed and a stable speed. The rotation of the connecting shaft 17 drives the stirring blade 18 to start working, breaking up the items that enter the discharge pipe 13 one by one. The discharge pipe 13 has a smooth wall and a carefully designed diameter. With the efficient work of the stirring blade 18, it successfully prevents the items from getting clumped or stuck, thus ensuring the smooth operation of the entire transportation process.

[0036] Working principle: When using the shaftless screw conveyor to prevent material blockage, first start motor 5 to drive the conveyor blade 3 to start the conveying work. At the same time, start motor 16 to drive the connecting shaft 17 to rotate, which in turn causes the mixing blade 18 to start working, so as to break up all the items entering the discharge pipe 13 and prevent blockage. When it is necessary to disassemble the conveyor box 1 to inspect the conveyor blade 3 inside, first hold the fixing block 11 and pull it outward, so that the limiting post 12 is pulled out from the inside of the connecting bar 6, and at the same time, the connecting post 8 is disengaged from the inside of the moving plate 9, thereby unlocking the two connecting bars 6. Then, open the two conveyor boxes 1 to inspect the internal equipment.

[0037] 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 shaftless screw conveyor for preventing material blockage, comprising multiple transport boxes (1), characterized in that: Each of the transport boxes (1) has multiple limiting blocks (2) fixedly connected to its inner wall. The transport boxes (1) are rotatably connected to each other. A drive assembly is provided on one side of one of the transport boxes (1). A connecting strip (6) is fixedly connected to the outer wall of each of the transport boxes (1). Multiple fixing plates (7) are fixedly connected to the outer wall of one of the connecting strips (6). A fixing assembly is provided on one side of each fixing plate (7). Each of the fixed components includes multiple connecting posts (8), a movable plate (9), and multiple springs (10). One end of each connecting post (8) is fixedly connected to one side of the fixed plate (7). One side of each movable plate (9) is slidably connected to one side of the fixed plate (7). Each spring (10) is disposed inside the movable plate (9). One end of each spring (10) is fixedly connected to the inside of the movable plate (9). The other end of each spring (10) is fixedly connected to one end of the connecting post (8). One side of each movable plate (9) is fixedly connected to a fixed block (11). One side of each fixed block (11) is fixedly connected to multiple limiting posts (12).

2. The shaftless screw conveyor for preventing material blockage according to claim 1, characterized in that: The drive assembly includes a protective shell (4) and a motor (5). One side of the protective shell (4) is fixedly connected to one side of one of the transport boxes (1). The outer wall of the motor (5) is fixedly connected to the inside of the protective shell (4). The output end of the motor (5) is connected to one end of the transport leaf (3).

3. The shaftless screw conveyor for preventing material blockage according to claim 1, characterized in that: One of the transport boxes (1) is fixedly connected to the bottom of a discharge pipe (13), and a fixing frame (14) is fixedly connected to the inner wall of the discharge pipe (13).

4. The shaftless screw conveyor for preventing material blockage according to claim 3, characterized in that: The bottom of the fixed frame (14) is fixedly connected to a protective shell (15), and the top of the fixed frame (14) is rotatably connected to a connecting shaft (17).

5. The shaftless screw conveyor for preventing material blockage according to claim 4, characterized in that: The protective shell (15) has a motor (16) fixedly connected inside, and the output end of the motor (16) is connected to one end of the connecting shaft (17).

6. The shaftless screw conveyor for preventing material blockage according to claim 4, characterized in that: Multiple stirring blades (18) are fixedly connected to the outer wall of the connecting shaft (17), and the stirring blades (18) are arranged in a ring array inside the discharge pipe (13).

7. The shaftless screw conveyor for preventing material blockage according to claim 1, characterized in that: The connecting columns (8) are arranged in a symmetrical array on one side of the fixing plate (7), and the limiting columns (12) are arranged in a symmetrical array on one side of the fixing block (11).

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