An enclosed screw conveyor

Abstract

The utility model discloses a closed spiral conveyor, including the conveying pipe, the inside installation of conveying pipe has the auger, the auger is fixedly connected with the first belt pulley through the one end of the sealed bearing and the penetration conveying pipe, the outer wall swing joint of first belt pulley has the transmission belt, the inner wall swing joint of transmission belt has the second belt pulley. The utility model relates to the technical field of conveyor, through the cooperation of first belt pulley, drive rod and conveying pipe, utilize transmission belt and connect first belt pulley and second belt pulley together, and use servo motor to drive drive rod to rotate, make the auger rotate in the conveying pipe, and when the auger is stuck in the conveying pipe, will make transmission belt and the derailment between first belt pulley, and then protect servo motor, solved because motor drives the auger to rotate too fast, and the auger is stuck between the conveying pipe easily, and then lead to the motor burnout problem.

Description

Technical Field

[0001] This utility model relates to the field of conveyor technology, specifically a closed screw conveyor. Background Technology

[0002] With the development of science and technology and the progress of society, the material conveying industry has developed rapidly. Equipment used to transport materials has won the favor of more and more manufacturers due to its excellent performance. A conveyor is a conveying device that uses the rotation of spiral blades to propel bulk materials forward along the trough. It is suitable for conveying powdery, granular and small lump materials. It is widely used in various industries such as building materials, chemical, power, metallurgy, coal mining and grain. It is suitable for horizontal or inclined conveying of powdery, granular and small lump materials such as coal, ash, slag, cement and grain.

[0003] In existing technology, a sealing gasket is installed between the auger and the conveying pipe, and the auger is driven to rotate by a servo motor, so that the material moves stably inside the conveying pipe and does not stir up dust.

[0004] However, in actual use, since the auger and the conveying pipe are connected by bearings to ensure the stability of the auger when rotating, if the motor drives the auger to rotate too fast, it is easy for the auger and the conveying pipe to jam, which will lead to the motor burning out. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a closed screw conveyor, which solves the problem that in actual use, because the auger and the conveying pipe are connected by bearings to ensure the stability of the auger during rotation, if the motor drives the auger to rotate too fast, the auger and the conveying pipe can easily get stuck, which can lead to the motor burning out.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a closed screw conveyor includes a conveying pipe, an auger installed inside the conveying pipe, a first pulley fixedly connected to one end of the auger through a sealed bearing, a transmission belt movably connected to the outer wall of the first pulley, a second pulley movably connected to the inner wall of the transmission belt, a drive rod fixedly connected to the inner wall of the second pulley, a mounting shell rotatably connected to the outer wall of the drive rod through a sealed bearing, the outer wall of the mounting shell fixedly connected to the outer wall of the conveying pipe, a servo motor fixedly connected to one end of the drive rod extending outside the mounting shell, the outer wall of the servo motor fixedly connected to the outer wall of the conveying pipe, and a sealing structure installed between the auger and the conveying pipe.

[0007] Preferably, the sealing structure includes a sealing shell, the inner wall of which is fitted onto the outer wall of the auger, the sealing shell being fixedly connected to the inner wall of the conveying pipe, a rubber gasket being pressed against the inner wall of the sealing shell, the rubber gasket being pressed between the sealing shell and the conveying pipe, the rubber gasket being fitted onto the outer wall of the auger, and a sealing plate being fixedly connected to the outer wall of the sealing shell, the inner wall of the sealing plate being fitted onto the outer wall of the auger.

[0008] Preferably, the bottom side of the conveying pipe is connected to an inlet pipe, and the top side of the conveying pipe is connected to an outlet pipe.

[0009] Preferably, an extension auger is installed at one end of the auger, the outer wall of the extension auger has an extension tube with a movable joint, a connecting ring is abutted between the extension tube and the conveying tube, a sealing gasket is abutted between the outer wall of the connecting ring, a fixing shell is fixedly connected to the outer wall of the sealing gasket, and the inner wall of the fixing shell is sleeved on the outer wall of the conveying tube and the extension tube.

[0010] Preferably, a rhomboid block is fixedly connected to one end of the extended auger, and the outer wall of the rhomboid block is inserted into the inner wall of the auger. Beneficial effects

[0011] This utility model provides a closed-loop screw conveyor. It has the following advantages: This closed-loop screw conveyor, through the cooperation of a first pulley, a drive rod, and a conveying pipe, connects the first and second pulleys using a transmission belt. A servo motor drives the drive rod to rotate, causing the auger to rotate inside the conveying pipe. When jamming occurs inside the conveying pipe, the transmission belt will derail from the first pulley, thus protecting the servo motor. This solves the problem that excessively fast rotation of the auger by the motor can easily cause jamming between the auger and the conveying pipe, leading to motor burnout.

[0012] By using the extension auger, delivery pipe, and connecting ring, the delivery pipe and extension pipe are fixed together using the connecting ring and rubber gasket. The rubber gasket is then fixed to the outer wall of the connecting ring using a fixing shell, ensuring a better sealing effect between the delivery pipe and the auger. This solves the problem of reduced sealing effect after the extension auger and extension pipe are installed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0015] Figure 3 for Figure 1 Schematic diagram of the middle extension pipe, auger, and extension auger;

[0016] Figure 4 for Figure 1 A schematic diagram of the structure of the conveying pipe, auger, and mounting shell.

[0017] In the diagram: 1. Conveying pipe; 2. Discharge pipe; 3. Feed pipe; 4. Extension pipe; 5. Screwdriver; 6. Extension screwdriver; 7. Connecting ring; 8. Sealing gasket; 9. Fixing shell; 10. Sealing shell; 11. Rubber gasket; 12. First pulley; 13. Mounting shell; 14. Servo motor; 15. Transmission belt; 16. Diamond block; 17. Second pulley; 18. Drive rod; 19. Sealing plate. Detailed Implementation

[0018] 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.

[0019] In actual use, the auger and the conveying pipe are connected by bearings to ensure the stability of the auger when rotating. If the motor drives the auger to rotate too fast, it is easy for the auger and the conveying pipe to jam, which will lead to the motor burning out.

[0020] In view of this, the present invention provides a closed screw conveyor, which solves the problem that in actual use, since the auger and the conveying pipe are connected by bearings to ensure the stability of the auger during rotation, if the motor drives the auger to rotate too fast, the auger and the conveying pipe may jam, which will lead to the motor burning out.

[0021] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0022] Example 1: By Figure 1-4It is known that a closed screw conveyor includes a conveying pipe 1, an auger 5 installed inside the conveying pipe 1, a first pulley 12 fixedly connected to one end of the auger 5 through a sealed bearing, a transmission belt 15 movably connected to the outer wall of the first pulley 12, a second pulley 17 movably connected to the inner wall of the transmission belt 15, a drive rod 18 fixedly connected to the inner wall of the second pulley 17, a mounting shell 13 rotatably connected to the outer wall of the drive rod 18 through a sealed bearing, the outer wall of the mounting shell 13 fixedly connected to the outer wall of the conveying pipe 1, a servo motor 14 fixedly connected to one end of the drive rod 18 extending outside the mounting shell 13, the outer wall of the servo motor 14 fixedly connected to the outer wall of the conveying pipe 1, and a sealing structure installed between the auger 5 and the conveying pipe 1.

[0023] In the specific implementation process, it is worth noting that the size of the conveying pipe 1 is sufficient for the auger 5 to rotate inside it. The outer walls of the first pulley 12 and the second pulley 17 are provided with teeth, and the inner wall of the transmission belt 15 is provided with the same internal teeth as the outer walls of the two pulleys. This allows it to mesh with the first pulley 12 and the second pulley 17. When the servo motor 14 drives the drive rod 18 to rotate, it will drive the second pulley 17 to rotate as well. Through its meshing with the transmission belt 15, it will drive the first pulley 12 to rotate synchronously, causing the auger 5 to rotate inside the conveying pipe 1 and pushing the material to move inside the conveying pipe 1. Moreover, when the auger 5 gets stuck between itself and the conveying pipe 1, the servo motor 14 will drive the second pulley 17 to rotate, which will cause the transmission belt 15 to derail from the first pulley 12 and the second pulley 17. This ensures that the servo motor 14 will not be damaged when the auger 5 gets stuck, thus protecting the servo motor 14.

[0024] Understandably, if necessary, a support structure can be welded to the outer wall of the two conveying pipes 1 on both sides or lockable wheels can be installed. This is beneficial for supporting the entire enclosed screw conveyor and adjusting the height of the supports on both sides according to actual needs, so that the overall angle of the enclosed screw conveyor meets the material conveying requirements.

[0025] Furthermore, the sealing structure includes a sealing shell 10, the inner wall of which is fitted onto the outer wall of the auger 5, the sealing shell 10 is fixedly connected to the inner wall of the conveying pipe 1, a rubber gasket 11 is pressed against the inner wall of the sealing shell 10, the rubber gasket 11 is pressed against the space between the sealing shell 10 and the conveying pipe 1, the rubber gasket 11 is fitted onto the outer wall of the auger 5, and a sealing plate 19 is fixedly connected to the outer wall of the sealing shell 10, the inner wall of the sealing plate 19 is fitted onto the outer wall of the auger 5.

[0026] In the specific implementation process, it is worth noting that the material of the rubber gasket 11 is rubber. The rubber gasket 11 is fixed by using the sealing shell 10. When the sealing shell 10 squeezes the rubber gasket 11, the rubber gasket 11 will deform, making the rubber gasket 11 and the auger 5 fit more tightly, preventing impurities from entering. With the cooperation of the sealing plate 19, the protective effect is increased, preventing impurities from getting stuck between the sealing shell 10 and the auger 5.

[0027] Furthermore, the bottom side of the conveying pipe 1 is connected to the feed pipe 3, and the top side of the conveying pipe 1 is connected to the discharge pipe 2.

[0028] In the specific implementation process, it is worth noting that materials are added into the conveying pipe 1 through the feed pipe 3 and discharged from the conveying pipe 1 through the discharge pipe 2, so that the auger 5 and the conveying pipe 1 can transport materials conveniently.

[0029] Example 2: From Figure 1-4 It can be seen that an extension auger 6 is installed at one end of the auger 5. The extension auger 6 has an extension tube 4 on its outer wall movable joint. A connecting ring 7 is pressed between the extension tube 4 and the conveying tube 1. A sealing gasket 8 is pressed against the outer wall of the connecting ring 7. A fixing shell 9 is fixedly connected to the outer wall of the sealing gasket 8. The inner wall of the fixing shell 9 is sleeved on the outer wall of the conveying tube 1 and the extension tube 4.

[0030] In the specific implementation process, it is worth noting that when conveying materials of different lengths and heights, the extension pipe 4 and the conveying pipe 1 are connected together using the connecting ring 7, and the extension pipe 4 and the conveying pipe 1 are sealed together using the sealing gasket 8 and the fixing shell 9 to prevent leakage when conveying materials.

[0031] Furthermore, a rhomboid block 16 is fixedly connected to one end of the extended auger 6, and the outer wall of the rhomboid block 16 is inserted into the inner wall of the auger 5.

[0032] In the specific implementation process, it is worth noting that when the length of the conveying pipe 1 is increased, the diamond-shaped block 16 at one end of the extended auger 6 is inserted into one end of the auger 5, so that the auger 5 and the extended auger 6 are connected together, ensuring that the auger 5 is stable when conveying materials.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed screw conveyor comprising a conveying pipe (1), characterized in that: An auger (5) is installed inside the conveying pipe (1). The auger (5) is fixedly connected to a first pulley (12) through a sealed bearing at one end of the conveying pipe (1). A transmission belt (15) is movably connected to the outer wall of the first pulley (12). A second pulley (17) is movably connected to the inner wall of the transmission belt (15). A drive rod (18) is fixedly connected to the inner wall of the second pulley (17). A mounting shell (13) is rotatably connected to the outer wall of the drive rod (18) through a sealed bearing. The outer wall of the mounting shell (13) is fixedly connected to the outer wall of the conveying pipe (1). A servo motor (14) is fixedly connected to one end of the drive rod (18) extending to the outside of the mounting shell (13). The outer wall of the servo motor (14) is fixedly connected to the outer wall of the conveying pipe (1). A sealing structure is installed between the auger (5) and the conveying pipe (1).

2. An enclosed screw conveyor according to claim 1, characterized in that: The sealing structure includes a sealing shell (10), the inner wall of which is fitted onto the outer wall of the auger (5), the sealing shell (10) is fixedly connected to the inner wall of the conveying pipe (1), a rubber gasket (11) is pressed against the inner wall of the sealing shell (10), the rubber gasket (11) is pressed against the sealing shell (10) and the conveying pipe (1), the rubber gasket (11) is fitted onto the outer wall of the auger (5), and a sealing plate (19) is fixedly connected to the outer wall of the sealing shell (10), the inner wall of the sealing plate (19) is fitted onto the outer wall of the auger (5).

3. An enclosed screw conveyor as claimed in claim 1, wherein: The bottom side of the conveying pipe (1) is connected to the feed pipe (3), and the top side of the conveying pipe (1) is connected to the discharge pipe (2).

4. An enclosed screw conveyor as claimed in claim 1, characterized in that: An extension auger (6) is installed at one end of the auger (5). An extension tube (4) is movable on the outer wall of the extension auger (6). A connecting ring (7) is pressed between the extension tube (4) and the conveying tube (1). A sealing gasket (8) is pressed against the outer wall of the connecting ring (7). A fixing shell (9) is fixedly connected to the outer wall of the sealing gasket (8). The inner wall of the fixing shell (9) is sleeved on the outer wall of the conveying tube (1) and the extension tube (4).

5. An enclosed screw conveyor according to claim 4, characterized in that: One end of the extended auger (6) is fixedly connected to a rhombus-shaped block (16), and the outer wall of the rhombus-shaped block (16) is inserted into the inner wall of the auger (5).

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