A tubular screw conveyor

Abstract

The utility model discloses a tubular screw conveyor relates to spiral conveyor technical field, including conveying cylinder and mount, the mount is fixed in the end position of conveying cylinder, the top inlet of conveying cylinder is fixedly connected with the feeding hopper, and the bottom outlet of conveying cylinder is fixedly connected with the discharge hopper, the outer fixed surface of mount is connected with the drive motor, the output of drive motor is connected with the drive shaft, the drive shaft extends to the inside of conveying cylinder, and the outer surface of drive shaft is equipped with spiral blade, is connected with the bearing seat between drive shaft and conveying cylinder. The utility model discloses a tubular screw conveyor, can conveniently shake the material of entering spiral conveyor, can avoid the material of caking and appear the situation of material jam in spiral conveyor, improves the conveying efficiency of spiral conveyor, can conveniently adjust the discharge direction of discharge hopper, improves the applicability of spiral conveyor.

Description

Technical Field

[0001] This utility model relates to the field of screw conveyor technology, and in particular to a tubular screw conveyor. Background Technology

[0002] Tubular screw conveyors are not only used in concrete mixing plants, asphalt mixing plants, and dry mortar production lines to transport cement, fly ash, mineral powder, dry sand, etc., but are also widely used in chemical, building materials, grain, metallurgy, power and other industries to transport powdery and small granular materials. In automatic batching systems, powdery materials are generally transported by screw conveyors. Due to the hygroscopic characteristics of materials, they will clump or harden during storage.

[0003] Chinese Patent Publication No. CN214933346U discloses a tubular screw conveyor, including a housing. A drive shaft is movably sleeved at one end of the housing, and a first screen tube is fixed at the other end of the drive shaft. One end of the first screen tube is provided with an annular screen plate that is movably sleeved with the outer ring of the drive shaft, and the outer ring of the screen plate is fixed to the inner wall of the housing. A threaded tube is fixed at the end of the first screen tube away from the drive shaft. A threaded sleeve is threadedly connected to the outer ring of the threaded tube. A pushing mechanism is fixed to the outer ring of the threaded sleeve near the end. A second fixed tube is provided at the end of the threaded sleeve away from the screen plate and is slidably connected to the end of the threaded tube. A first fixed rod is fixed to the inner wall of the second fixed tube, and a stirring mechanism is fixed to the side of the first fixed rod near the first screen tube. This utility model can crush and screen agglomerated materials while conveying, providing qualified materials for subsequent processes, simplifying the equipment, and has a compact structure with a small footprint.

[0004] When using traditional tubular screw conveyors, powdery materials tend to clump together after absorbing moisture. If the material is not shaken apart during feeding, the clumps can easily get stuck inside the screw conveyor, reducing conveying efficiency. In addition, the discharge direction of the discharge hopper is fixed. If it is necessary to discharge in a different direction, the entire screw conveyor must be moved, which greatly limits the applicability of the equipment. Utility Model Content

[0005] The main objective of this invention is to provide a tubular screw conveyor that can effectively solve the problem mentioned in the background art where powdered materials tend to clump together after absorbing moisture during use. If the material is not shaken apart during feeding, the clumps can easily get stuck inside the screw conveyor, thus reducing conveying efficiency. In addition, the discharge direction of the discharge hopper is fixed, and if material needs to be discharged in different directions, the entire screw conveyor must be moved, which greatly limits the applicability of the equipment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A tubular screw conveyor includes a conveying cylinder and a fixed frame. The fixed frame is fixed to the end of the conveying cylinder. A feeding hopper is fixedly connected to the top inlet of the conveying cylinder, and a discharge hopper is fixedly connected to the bottom outlet of the conveying cylinder. A drive motor is fixedly connected to the outer surface of the fixed frame. A drive shaft is connected to the output end of the drive motor. The drive shaft extends into the interior of the conveying cylinder, and a helical blade is sleeved on the outer surface of the drive shaft. A bearing seat is connected between the drive shaft and the conveying cylinder. A fixed sleeve is sleeved on the outer surface of the conveying cylinder. A mounting frame is fixedly connected to the bottom of the fixed sleeve. A material dispersing structure is connected to the bottom of the feeding hopper.

[0008] As a further embodiment of this utility model, the material shaking structure includes a mounting plate, a connecting frame, a movable frame, and shaking teeth. The mounting plate is fixed to the bottom of the feeding hopper, the connecting frame is fixed to the inner side of the mounting plate and inserted into the interior of the feeding hopper, the movable frame is disposed on the inner side of the connecting frame, and the shaking teeth are fixed to the inner side of the movable frame.

[0009] As a further embodiment of this utility model, a connecting shaft is connected between the movable frame and the connecting frame, and a torsion spring is sleeved on the outer side of the connecting shaft.

[0010] As a further embodiment of this utility model, the movable frame is movably connected to the connecting frame via a connecting shaft and a torsion spring, and both the connecting frame and the movable frame have mounting slots that are compatible with the connecting shaft.

[0011] As a further embodiment of this utility model, a connecting plate is fixedly connected to the port of the discharge hopper, a rotating plate is provided on the outer side of the connecting plate, a transfer hopper is fixedly connected to the outer surface of the rotating plate, and an adapter is connected between the rotating plate and the connecting plate, the adapter being rotatably connected to the connecting plate.

[0012] As a further embodiment of this utility model, a fixing pin is connected through the edge of the rotating disk, and a fixing groove adapted to the fixing pin is opened inside the connecting disk.

[0013] The beneficial effects of this utility model are as follows: by setting a material shaking structure, the material entering the screw conveyor can be easily shaken apart, which can avoid the situation of clumped material getting stuck in the screw conveyor and improve the conveying efficiency of the screw conveyor.

[0014] By setting up connecting discs, rotating discs, and transfer hoppers, the discharge direction of the discharge hopper can be easily adjusted, improving the applicability of the screw conveyor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a tubular screw conveyor according to the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of the conveying cylinder of a tubular screw conveyor according to the present invention.

[0017] Figure 3 This is a schematic diagram of the material dispersion structure of a tubular screw conveyor according to the present invention.

[0018] Figure 4 This is a schematic diagram showing the connection of the connecting disc, rotating disc, and transfer bucket of a tubular screw conveyor according to this utility model.

[0019] In the diagram: 1. Conveying cylinder; 2. Fixed frame; 3. Feeding hopper; 4. Discharging hopper; 5. Drive motor; 6. Drive shaft; 7. Spiral blade; 8. Bearing seat; 9. Fixed sleeve; 10. Mounting frame; 11. Material shaking structure; 12. Mounting plate; 13. Connecting frame; 14. Movable frame; 15. Shaking teeth; 16. Connecting shaft; 17. Torsion spring; 18. Connecting disc; 19. Rotating disc; 20. Transfer hopper; 21. Adapter; 22. Fixed pin; 23. Fixed groove. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Combination Figures 1-4 A tubular screw conveyor includes a conveying cylinder 1 and a fixed frame 2. The fixed frame 2 is fixed to the end of the conveying cylinder 1. A feeding hopper 3 is fixedly connected to the top inlet of the conveying cylinder 1, and a discharging hopper 4 is fixedly connected to the bottom outlet of the conveying cylinder 1. A drive motor 5 is fixedly connected to the outer surface of the fixed frame 2. A drive shaft 6 is connected to the output end of the drive motor 5. The drive shaft 6 extends into the interior of the conveying cylinder 1, and a spiral blade 7 is sleeved on the outer surface of the drive shaft 6. A bearing seat 8 is connected between the drive shaft 6 and the conveying cylinder 1. A fixed sleeve 9 is sleeved on the outer surface of the conveying cylinder 1. A mounting frame 10 is fixedly connected to the bottom of the fixed sleeve 9. A material dispersing structure 11 is connected to the bottom of the feeding hopper 3.

[0023] See Figure 1 and Figure 3Furthermore, the material shaking structure 11 includes a mounting plate 12, a connecting frame 13, a movable frame 14, and shaking teeth 15. The mounting plate 12 is fixed to the bottom of the feeding hopper 3, the connecting frame 13 is fixed to the inner side of the mounting plate 12, and the connecting frame 13 is inserted into the interior of the feeding hopper 3. The movable frame 14 is located inside the connecting frame 13, and the shaking teeth 15 are fixed to the inner side of the movable frame 14.

[0024] Specifically, when the clumped powdery material reaches the bottom of the feed hopper 3 and comes into contact with the shaking teeth 15, the shaking teeth 15 resets and shakes the material apart, which can prevent the clumped material from getting stuck in the screw conveyor and ensure the uniformity of the material.

[0025] See Figure 3 Furthermore, a connecting shaft 16 is connected between the movable frame 14 and the connecting frame 13. A torsion spring 17 is sleeved on the outside of the connecting shaft 16. The movable frame 14 is movably connected to the connecting frame 13 through the connecting shaft 16 and the torsion spring 17. Both the connecting frame 13 and the movable frame 14 have mounting slots that are compatible with the connecting shaft 16.

[0026] Specifically, due to the gravity of the material, the movable frame 14 moves relative to the connecting frame 13 through the connecting shaft 16 and the torsion spring 17, which can drive the shaking teeth 15 to shake.

[0027] Example 2

[0028] See Figure 1 and Figure 4 Furthermore, based on Embodiment 1, a connecting plate 18 is fixedly connected to the port of the discharge hopper 4, a rotating plate 19 is provided on the outer side of the connecting plate 18, a transfer hopper 20 is fixedly connected to the outer surface of the rotating plate 19, and a connector 21 is connected between the rotating plate 19 and the connecting plate 18. The connector 21 is fixedly connected to the rotating plate 19 and rotatably connected to the connecting plate 18. A fixing pin 22 is passed through the edge of the rotating plate 19, and a fixing groove 23 adapted to the fixing pin 22 is opened inside the connecting plate 18.

[0029] Specifically, when it is necessary to adjust the discharge direction of the discharge hopper 4, unscrew the fixing pin 22 and move the rotating disk 19. Since the adapter 21 is rotatably connected to the connecting disk 18, the rotating disk 19 rotates circumferentially relative to the connecting disk 18 through the adapter 21. The transfer hopper 20 moves synchronously with the rotating disk 19. The rotating disk 19 drives the transfer hopper 20 to the correct discharge direction. Then, the rotating disk 19 is fixed to the connecting disk 18 through the fixing pin 22 and the fixing groove 23, thereby realizing the adjustment of the discharge direction of the discharge hopper 4.

[0030] It should be noted that this utility model is a tubular screw conveyor. In use, the screw conveyor is fixed to the conveyor frame by the mounting bracket 10. The drive motor 5 is started, and the drive motor 5 drives the screw blades 7 to rotate through the drive shaft 6. Material is added into the conveying cylinder 1 through the feeding hopper 3. When the lumpy powdery material reaches the bottom of the feeding hopper 3 and contacts the shaking teeth 15, due to the gravity of the material, the movable frame 14 moves relative to the connecting frame 13 through the connecting shaft 16 and the torsion spring 17, which can drive the shaking teeth 15 to shake. The shaking teeth 15 shake the material apart, which can prevent the lumpy material from being trapped in the screw. If material jams in the conveyor, the spiral blades 7 will transport the loosened material from the inlet end of the conveyor cylinder 1 to the outlet end, and finally discharge it through the discharge hopper 4. When it is necessary to adjust the discharge direction of the discharge hopper 4, the rotating disk 19 is moved. Since the adapter 21 is rotatably connected to the connecting disk 18, the rotating disk 19 rotates circumferentially relative to the connecting disk 18 through the adapter 21. The transfer hopper 20 moves synchronously with the rotating disk 19. The rotating disk 19 drives the transfer hopper 20 to the correct discharge direction. Then, the rotating disk 19 is fixed to the connecting disk 18 through the fixing pin 22 and the fixing groove 23, thereby realizing the adjustment of the discharge direction of the discharge hopper 4.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tubular screw conveyor, comprising a conveying cylinder (1) and a fixed frame (2), characterized in that: The fixed frame (2) is fixed at the end of the conveying cylinder (1). A feeding hopper (3) is fixedly connected to the top inlet of the conveying cylinder (1), and a discharge hopper (4) is fixedly connected to the bottom outlet of the conveying cylinder (1). A drive motor (5) is fixedly connected to the outer surface of the fixed frame (2). A drive shaft (6) is connected to the output end of the drive motor (5). The drive shaft (6) extends into the interior of the conveying cylinder (1), and a spiral blade (7) is sleeved on the outer surface of the drive shaft (6). A bearing seat (8) is connected between the drive shaft (6) and the conveying cylinder (1). A fixed sleeve (9) is sleeved on the outer surface of the conveying cylinder (1). An installation frame (10) is fixedly connected to the bottom of the fixed sleeve (9). A material shaking structure (11) is connected to the bottom of the feeding hopper (3).

2. A tubular screw conveyor according to claim 1, characterized in that: The material shaking structure (11) includes a mounting plate (12), a connecting frame (13), a movable frame (14), and shaking teeth (15). The mounting plate (12) is fixed to the bottom of the feeding hopper (3). The connecting frame (13) is fixed to the inner side of the mounting plate (12) and the connecting frame (13) is inserted into the interior of the feeding hopper (3). The movable frame (14) is located on the inner side of the connecting frame (13), and the shaking teeth (15) are fixed on the inner side of the movable frame (14).

3. A tubular screw conveyor according to claim 2, characterized in that: A connecting shaft (16) is connected between the movable frame (14) and the connecting frame (13), and a torsion spring (17) is sleeved on the outside of the connecting shaft (16).

4. A tubular screw conveyor according to claim 3, characterized in that: The movable frame (14) is movably connected to the connecting frame (13) via a connecting shaft (16) and a torsion spring (17). Both the connecting frame (13) and the movable frame (14) have mounting slots that are compatible with the connecting shaft (16).

5. A tubular screw conveyor according to claim 1, characterized in that: A connecting plate (18) is fixedly connected to the port of the discharge hopper (4). A rotating plate (19) is provided on the outside of the connecting plate (18). A transfer hopper (20) is fixedly connected to the outer surface of the rotating plate (19). A connector (21) is connected between the rotating plate (19) and the connecting plate (18). The connector (21) is rotatably connected to the connecting plate (18).

6. A tubular screw conveyor according to claim 5, characterized in that: A fixing pin (22) is connected through the edge of the rotating disk (19), and a fixing groove (23) that matches the fixing pin (22) is opened inside the connecting disk (18).

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