Anti-blocking spiral device

Abstract

The utility model discloses an anti-blocking spiral device, which belongs to the technical field of spiral conveying devices and comprises a spiral conveyor, the spiral conveyor comprises a machine barrel and a conveying system, a feeding port is communicated with the upper surface of the machine barrel, a discharging pipe is communicated with the lower surface of the machine barrel, an anti-blocking mechanism is arranged on the machine barrel, and the conveying system is arranged on the conveying system. The anti-blocking mechanism comprises a first motor, a driving gear, a nut, a gear ring, a screw rod and a dredging piece, a mounting base is arranged on the machine barrel, the first motor is located on the mounting base, and by arranging the anti-blocking mechanism, when the discharging opening is blocked, the first motor is started to drive the driving gear to rotate, the driving gear is meshed with the gear ring, and therefore the nut is driven to rotate; and under sliding fit of the limiting block and the limiting groove, the screw rod is driven to move downwards, the screw rod drives the dredging piece to dredge the discharging pipe, and the problems that when the materials are not thoroughly stirred and dispersed, the discharging port is blocked in the process that the materials are conveyed to the discharging port, and the materials cannot be discharged smoothly are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw conveying devices, in particular to an anti-blocking screw device. Background Art

[0002] Screw conveyor is a material conveying device with simple structure and good sealing performance. It is widely used in the transportation of powdery, granular and small block materials. Screw conveyor generally includes a feeding pipe, a rotating shaft with spiral blades located in the feeding pipe and a driving motor of the rotating shaft. During transportation, the material does not rotate with the spiral blades due to its own gravity and the friction of the trough wall. Under the push of the spiral blades, it moves along the axial direction of the feeding pipe to achieve the purpose of transportation. Screw conveyors are divided into two types in terms of conveying form: shafted screw conveyors and shaftless screw conveyors. Shafted screw conveyors are suitable for non-sticky dry powder materials and small particle materials, such as cement, fly ash, lime, grain, etc., while shaftless screw conveyors are suitable for conveying sticky and easily entangled materials.

[0003] When traditional screw conveyors are in use, there is often no dedicated anti-blocking device installed in the screw conveyors. Most of them prevent blockage by rotating their own blades. However, this anti-blocking method has major defects. For example, the anti-blocking effect is not good. When the material is not dispersed thoroughly enough, the material inlet and outlet are easily blocked during the process of conveying the material to the discharge port, which affects the material transportation rate and cannot be discharged smoothly. Utility Model Content

[0004] The technical problem to be solved by the utility model is that most of the traditional screw conveyors prevent blockage by the rotation of their own blades, but when the anti-blockage effect is not good, the material discharge port is easily blocked during the material discharge process.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: an anti-blocking spiral device, including a screw conveyor, the screw conveyor including a barrel and a conveying system, the barrel is connected to a feed port on the top, and a discharge pipe is connected to the bottom of the barrel, the barrel is provided with an anti-blocking mechanism, the anti-blocking mechanism includes a motor 1, a driving gear, a nut, a gear ring, a screw, and a dredging piece, a mounting seat is provided on the barrel, the motor 1 is located on the mounting seat, the driving gear is located at the output end of the motor 1, the nut is rotatably connected to the mounting seat, the gear ring is located on the outside of the nut, the gear ring is meshed with the driving gear, the screw is threadedly connected to the nut, and the dredging piece is located at one end of the screw extending into the bottom of the barrel.

[0006] As a further solution of the utility model, the dredging component includes a conical outer shell, a second motor, a disc, and dredging teeth. The conical outer shell is consistent with the inner wall size of the discharge pipe. The second motor is located in the conical outer shell, the disc is located at the output end of the second motor, and the dredging teeth are located on the circumferential side of the disc and are evenly distributed.

[0007] As a further solution of the utility model, a limit block is provided on the screw rod, a limit plate is provided on the mounting seat, a limit slot is provided on the limit plate, and the limit block is slidably matched with the limit slot.

[0008] As a further solution of the utility model, connecting rods are provided on both sides below the nut, sliding blocks are provided below the connecting rods, an annular sliding groove is provided on the mounting seat, and the sliding block is slidably matched with the annular sliding groove.

[0009] As a further solution of the utility model, the motor 1 is a stepping motor with a self-locking function.

[0010] As a further solution of the utility model, the conveying system includes a motor three and a spiral conveying blade. The output end of the motor three is provided with a rotating shaft, and the spiral conveying blade is located on the rotating shaft.

[0011] The advantages of the utility model compared with the prior art are: by arranging the anti-blocking mechanism, when the feed port is blocked, the starting motor drives the driving gear to rotate, the driving gear meshes with the gear ring, thereby driving the nut to rotate, and under the sliding cooperation between the limit block and the limit groove, the screw is driven to move downward, and the screw drives the dredging piece to dredge the feed pipe, so as to prevent the feed port from being blocked when the material is not dispersed thoroughly enough, and the material cannot be discharged smoothly during the process of conveying the material to the feed port. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a stereoscopic diagram of an anti-clogging spiral device of the utility model.

[0013] Figure 2 The utility model is a schematic diagram of the internal structure of an anti-clogging spiral device.

[0014] Figure 3 The utility model is a schematic diagram of the structure of a dredging piece of an anti-clogging spiral device.

[0015] Figure 4 It is an enlarged schematic diagram of the A-part structure of an anti-clogging spiral device of the utility model.

[0016] Figure 5 It is a structural schematic diagram of an anti-clogging spiral device of the utility model in use state.

[0017] As shown in the figure: 1. Cylinder; 2. Conveying system; 3. Feed inlet; 4. Discharge pipe; 5. Motor 1; 6. Driving gear; 7. Nut; 8. Gear ring; 9. Screw; 10. Clearing piece; 11. Mounting seat; 12. Conical shell; 13. Motor 2; 14. Disc; 15. Clearing teeth; 16. Limiting block; 17. Limiting plate; 18. Limiting groove; 19. Connecting rod; 20. Sliding block; 21. Annular slide; 22. Motor 3; 23. Spiral conveying blade; 24. Rotating shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0020] Combined with Figure 1 , Figure 2 A kind of anti-clogging spiral device includes a screw conveyor, which includes a barrel 1 and a conveying system 2. The conveying system 2 includes a motor 22 and a spiral conveying blade 23. The output end of the motor 22 is provided with a rotating shaft 24, and the spiral conveying blade 23 is located on the rotating shaft 24. The barrel 1 is connected to a feed port 3 on the top, and a discharge pipe 4 is connected to the bottom of the barrel 1.

[0021] Combined with Figure 1 , Figure 2, the barrel 1 is provided with an anti-blocking mechanism, which includes a motor 5, a driving gear 6, a nut 7, a gear ring 8, a screw 9, and a dredging piece 10. A mounting seat 11 is provided on the barrel 1, and the motor 5 is located on the mounting seat 11. The motor 5 is a stepping motor with a self-locking function. The driving gear 6 is located at the output end of the motor 5, and the nut 7 is rotatably connected to the mounting seat 11. The gear ring 8 is located on the outside of the nut 7, and the gear ring 8 is meshed with the driving gear 6. The screw 9 is threadedly connected with the nut 7. The dredging piece 10 is located at one end of the screw 9 extending into the bottom of the barrel 1. A limit block 16 is provided on the screw 9, and a limit plate 17 is provided on the mounting seat 11. A limit groove 18 is provided on the limit plate 17, and the limit block 16 and the limit groove 18 are slidably matched.

[0022] Combined with Figure 3 , Figure 5 The dredging member 10 includes a conical outer shell 12, a second motor 13, a disc 14, and dredging teeth 15. The conical outer shell 12 is consistent with the inner wall size of the discharge pipe 4. The second motor 13 is located in the conical outer shell 12. The disc 14 is located at the output end of the second motor 13. The dredging teeth 15 are located on the circumferential side of the disc 14 and are evenly distributed.

[0023] Combined with Figure 4 Connecting rods 19 are provided at both sides below the nut 7, and sliding blocks 20 are provided below the connecting rods 19. An annular groove 21 is provided on the mounting seat 11, and the sliding blocks 20 are slidably matched with the annular groove 21.

[0024] During the specific implementation of the utility model, the material is firstly fed into the screw conveyor through the feed port, and then the motor three is started to drive the rotating shaft to rotate, and the rotating shaft drives the spiral conveying blades to rotate to transport the material. When the anti-blocking effect of the screw conveyor is not good and the material is not thoroughly stirred, the feed port is easily blocked during the process of conveying the material to the discharge port. At this time, the motor one is started, and the motor one drives the driving gear to rotate, and the driving gear is meshed with the gear ring, thereby driving the nut to rotate, and under the sliding cooperation of the limit block and the limit groove, the screw is driven to move downward, and the screw drives the dredging piece to dredge the discharge pipe. At the same time, the motor two is started, and the motor two drives the disc to rotate, and the disc drives the dredging teeth to rotate, so as to better dredge the discharge pipe.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An anti-clogging screw device, comprising a screw conveyor, the screw conveyor comprising a barrel (1) and a conveying system (2), the barrel (1) being connected to a feed port (3) on the top, and a discharge pipe (4) on the bottom, characterized in that: The barrel (1) is provided with an anti-blocking mechanism, which comprises a motor (5), a driving gear (6), a nut (7), a gear ring (8), a screw (9), and a dredging member (10). A mounting seat (11) is provided on the barrel (1), the motor (5) is located on the mounting seat (11), the driving gear (6) is located at the output end of the motor (5), the nut (7) is rotatably connected to the mounting seat (11), the gear ring (8) is located outside the nut (7), the gear ring (8) is meshed with the driving gear (6), the screw (9) is threadedly connected with the nut (7), and the dredging member (10) is located at one end of the screw (9) extending into the lower side of the barrel (1).

2. The anti-clogging spiral device according to claim 1, characterized in that: The dredging member (10) comprises a conical outer shell (12), a second motor (13), a disc (14), and dredging teeth (15); the conical outer shell (12) has the same size as the inner wall of the discharge pipe (4); the second motor (13) is located in the conical outer shell (12); the disc (14) is located at the output end of the second motor (13); and the dredging teeth (15) are located on the circumference of the disc (14) and are evenly distributed in number.

3. The anti-clogging spiral device according to claim 1, characterized in that: A limit block (16) is provided on the screw rod (9), a limit plate (17) is provided on the mounting seat (11), a limit groove (18) is provided on the limit plate (17), and the limit block (16) is slidably matched with the limit groove (18).

4. The anti-clogging spiral device according to claim 1, characterized in that: Connecting rods (19) are provided on both sides below the nut (7), and sliding blocks (20) are provided below the connecting rods (19). An annular sliding groove (21) is provided on the mounting seat (11), and the sliding block (20) is slidably matched with the annular sliding groove (21).

5. The anti-clogging spiral device according to claim 1, characterized in that: The motor 1 (5) is a stepping motor with a self-locking function.

6. The anti-clogging spiral device according to claim 1, characterized in that: The conveying system (2) comprises a motor three (22) and a spiral conveying blade (23). The output end of the motor three (22) is provided with a rotating shaft (24), and the spiral conveying blade (23) is located on the rotating shaft (24).

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