Chain wheel tensioning device of circular stacker-reclaimer

Abstract

The utility model provides a chain wheel tensioning device of a circular stacker-reclaimer, which relates to the technical field of chain wheel tensioning devices and comprises a mounting plate, a chain wheel body is mounted at the front end of the mounting plate, a chain is mounted on the outer side wall of the chain wheel body, and a movable plate is mounted at the top end of a moving mechanism. A replacement mechanism is arranged above the movable plate, a mounting frame is mounted at the top end of the replacement mechanism, a tensioning wheel is mounted at the top end of the mounting frame, and the upper portion of the tensioning wheel is matched with the lower portion of the inner side of the chain; the replacement mechanism is arranged above the movable plate, and the installation frame and the tensioning wheel can be conveniently disassembled and installed through mutual cooperation of an installation base, an installation hole, an installation block, a positioning hole and a positioning pin of the replacement mechanism, so that the tensioning wheel is more convenient and faster to replace; and the tensioning effect of the tensioning wheel on the chain wheel is better, so that the use convenience of the device is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of sprocket tensioning devices, and in particular to a sprocket tensioning device for a circular stacker-reclaimer. Background Technology

[0002] Circular stacker-reclaimers are among the most critical large-scale equipment in cement plants. They can simultaneously or separately complete the stacking and mixing of limestone, playing a vital role in limestone pre-homogenization, stabilizing kiln conditions, and ensuring clinker quality. With increasingly stringent environmental regulations, some power plants have begun using circular enclosed coal yards for coal storage in recent years. Circular stacker-reclaimers are used for stacking and reclaiming in these yards, and their sprockets require tensioning devices to maintain chain tension during operation.

[0003] Existing sprocket tensioning devices for circular stacker-reclaimers allow for chain tension adjustment by adjusting the position of the tensioning wheel. However, the tensioning wheel rubs against the chain during use, leading to damage over time. Furthermore, the inconvenience of disassembling and installing the tensioning wheel makes replacement cumbersome, thus reducing the device's usability. Therefore, this invention proposes a sprocket tensioning device for a circular stacker-reclaimer to address these issues. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a sprocket tensioning device for a circular stacker-reclaimer, which solves the problem of inconvenient disassembly and installation of the tensioning wheel in the prior art, making the replacement of the tensioning wheel cumbersome and reducing the convenience of the device in use.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a sprocket tensioning device for a circular stacker-reclaimer, comprising a mounting plate, a sprocket body mounted at the front end of the mounting plate, a chain mounted on the outer side wall of the sprocket body, a fixing plate mounted at the front end of the mounting plate, a mounting cavity mounted above the fixing plate, a moving mechanism disposed inside the mounting cavity, a movable plate mounted at the top of the moving mechanism, a replacement mechanism disposed above the movable plate, a mounting frame mounted at the top of the replacement mechanism, a tensioning wheel mounted at the top of the mounting frame, the top of the tensioning wheel being adapted to the lower side of the inner side of the chain;

[0006] The replacement mechanism includes a mounting base, mounting holes, mounting blocks, positioning holes, and positioning pins. The mounting bases are symmetrically mounted on the top of the movable plate. The mounting bases have mounting holes inside, mounting blocks are installed inside the mounting holes, positioning holes are installed inside the mounting blocks, and positioning pins are installed inside the positioning holes.

[0007] A further improvement is that the inner diameter of the mounting hole is larger than the outer diameter of the mounting block, and the mounting hole and the mounting block form a locking structure.

[0008] A further improvement is made in that: the moving mechanism includes a servo motor, a first bevel gear, a second bevel gear, a threaded rod, a threaded sleeve, a movable cavity, and a limiting structure. The servo motor is installed on the lower side of one side of the mounting cavity, and the first bevel gear is installed on the lower side of the inner side of the mounting cavity. The output end of the servo motor is connected to one end of the first bevel gear. The second bevel gear meshes with the upper part of the first bevel gear. A threaded rod is installed at the top of the second bevel gear. A threaded sleeve is provided on the outer side wall of the threaded rod. A movable cavity is fixedly installed on the outer side wall of the threaded sleeve. The top end of the movable cavity extends to the outside of the mounting cavity, and the top end of the movable cavity is connected to the bottom end of the movable plate.

[0009] A further improvement is that the limiting structure includes a limiting groove and a limiting block. The limiting groove is opened inside the mounting cavity, and a limiting block is provided inside the limiting groove. One end of the limiting block is connected to the outside of the movable cavity.

[0010] A further improvement is that the cross-section of the limiting groove is larger than the cross-section of the limiting block, and the limiting groove and the limiting block form a sliding structure.

[0011] A further improvement is that two limiting grooves are formed inside the mounting cavity, and the two limiting grooves are symmetrically distributed about the central axis of the mounting cavity.

[0012] The beneficial effects of this utility model are as follows: By providing a replacement mechanism above the movable plate, the mounting bracket and tension wheel can be easily disassembled and installed using the mutual cooperation between the mounting base, mounting hole, mounting block, positioning hole, and positioning pin of the replacement mechanism. This makes it easier and faster to replace the tension wheel and improves the tensioning effect of the tension wheel on the sprocket, thereby greatly improving the convenience of the device in use. By providing a moving mechanism inside the mounting cavity, the mounting bracket and tension wheel can be easily moved using the mutual cooperation between the servo motor, first bevel gear, second bevel gear, threaded rod, threaded sleeve, movable cavity, limiting groove, and limiting block of the moving mechanism. This makes it easier and faster to tension the sprocket, thereby greatly improving the practicality of the device in use. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the overall structure of the moving mechanism of this utility model;

[0015] Figure 3This is a cross-sectional structural diagram of the moving mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the replacement mechanism of this utility model.

[0017] The components are as follows: 1. Mounting plate; 2. Sprocket body; 3. Chain; 4. Fixing plate; 5. Mounting cavity; 6. Movable plate; 7. Mounting bracket; 8. Tensioner wheel; 9. Mounting seat; 10. Mounting hole; 11. Mounting block; 12. Positioning hole; 13. Positioning pin; 14. Servo motor; 15. First bevel gear; 16. Second bevel gear; 17. Threaded rod; 18. Threaded sleeve; 19. Movable cavity; 20. Limiting groove; 21. Limiting block. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a sprocket tensioning device for a circular stacker-reclaimer, including a mounting plate 1. A sprocket body 2 is mounted on the front end of the mounting plate 1, and a chain 3 is mounted on the outer side wall of the sprocket body 2. A fixing plate 4 is mounted on the front end of the mounting plate 1, and a mounting cavity 5 is mounted above the fixing plate 4. A moving mechanism is provided inside the mounting cavity 5, and a movable plate 6 is mounted on the top of the moving mechanism. A replacement mechanism is provided above the movable plate 6, and a mounting frame 7 is mounted on the top of the replacement mechanism. A tensioning wheel 8 is mounted on the top of the mounting frame 7, and the top of the tensioning wheel 8 is adapted to the lower inner side of the chain 3.

[0020] The replacement mechanism includes a mounting base 9, a mounting hole 10, a mounting block 11, a positioning hole 12, and a positioning pin 13. The mounting base 9 is symmetrically mounted on the top of the movable plate 6. The mounting base 9 has a mounting hole 10 inside, and a mounting block 11 is disposed inside the mounting hole 10. A positioning hole 12 is disposed inside the mounting block 11, and a positioning pin 13 is disposed inside the positioning hole 12. The inner diameter of the mounting hole 10 is larger than the outer diameter of the mounting block 11. The mounting hole 10 and the mounting block 11 form a locking structure. For long-term use, the tensioning wheel 8 needs to be adjusted. When replacing the tension wheel 8, the operator first pulls the positioning pin 13 out of the positioning hole 12. At this time, the mounting block 11 can be removed from the mounting base 9. The tension wheel 8 is then removed, and the new tension wheel 8 is taken out. The mounting block 11 is placed into the mounting hole 10, and the positioning pin 13 is inserted into the positioning hole 12 to fix the position of the tension wheel 8. This completes the convenient replacement of the tension wheel 8, making it easier and faster to replace. It also makes the tension wheel 8 better at tensioning the sprocket, thus greatly improving the convenience of using the device.

[0021] The moving mechanism includes a servo motor 14, a first bevel gear 15, a second bevel gear 16, a threaded rod 17, a threaded sleeve 18, a movable cavity 19, and a limiting structure. The servo motor 14 is mounted on the lower side of one side of the mounting cavity 5, and the first bevel gear 15 is mounted on the lower side of one side inside the mounting cavity 5. The output end of the servo motor 14 is connected to one end of the first bevel gear 15. The second bevel gear 16 meshes with the upper part of the first bevel gear 15. A threaded rod 17 is mounted on the top of the second bevel gear 16. A threaded sleeve 18 is provided on the outer wall of the threaded rod 17. A movable cavity 19 is fixedly mounted on the outer wall of the threaded sleeve 18. The top of the movable cavity 19 extends into the mounting cavity 5. Externally, the top of the movable cavity 19 is connected to the bottom of the movable plate 6. In use, the servo motor 14 is started to drive the first bevel gear 15 to rotate. Since the first bevel gear 15 and the second bevel gear 16 mesh with each other, the second bevel gear 16 drives the threaded rod 17 to rotate. Since the threaded rod 17 is threadedly connected to the threaded sleeve 18, the threaded sleeve 18 is driven to move. Under the limitation of the limiting groove 20 and the limiting block 21, the threaded sleeve 18 drives the movable cavity 19 to move, thereby driving the mounting frame 7 and the tensioning wheel 8 to move upward and tension the sprocket. This makes it more convenient and faster to tension the sprocket, thus greatly improving the practicality of the device in use.

[0022] The limiting structure includes a limiting groove 20 and a limiting block 21. The limiting groove 20 is formed inside the mounting cavity 5, and the limiting block 21 is provided inside the limiting groove 20. One end of the limiting block 21 is connected to the outside of the movable cavity 19. The cross-section of the limiting groove 20 is larger than the cross-section of the limiting block 21. The limiting groove 20 and the limiting block 21 form a sliding structure. There are two limiting grooves 20 inside the mounting cavity 5. The two limiting grooves 20 are symmetrically distributed about the central axis of the mounting cavity 5. In use, the mutual cooperation between the limiting groove 20 and the limiting block 21 can limit the movement of the movable cavity 19, making the movable cavity 19 more stable when moving.

[0023] Working principle: The operator first starts the servo motor 14 to drive the first bevel gear 15 to rotate. Since the first bevel gear 15 and the second bevel gear 16 mesh with each other, the second bevel gear 16 drives the threaded rod 17 to rotate. Since the threaded rod 17 is threadedly connected to the threaded sleeve 18, the threaded sleeve 18 is moved. Then, under the limit of the limit groove 20 and the limit block 21, the threaded sleeve 18 drives the movable cavity 19 to move, which in turn drives the mounting bracket 7 and the tensioning wheel 8 to move upward, thus tensioning the sprocket. When the tensioning wheel 8 needs to be replaced after long-term use, the operator first pulls the positioning pin 13 out of the positioning hole 12. At this time, the mounting block 11 can be taken out from the mounting base 9, the tensioning wheel 8 can be removed, and then the new tensioning wheel 8 can be taken out. The mounting block 11 is placed into the mounting hole 10, and the positioning pin 13 is inserted into the positioning hole 12 to fix the position of the tensioning wheel 8, thus completing the convenient replacement of the tensioning wheel 8.

[0024] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sprocket tensioning device for a circular stacker-reclaimer, comprising a mounting plate (1), characterized in that: The front end of the mounting plate (1) is equipped with a sprocket body (2), the outer side wall of the sprocket body (2) is equipped with a chain (3), the front end of the mounting plate (1) is equipped with a fixing plate (4), the top of the fixing plate (4) is equipped with a mounting cavity (5), the inside of the mounting cavity (5) is provided with a moving mechanism, the top of the moving mechanism is equipped with a movable plate (6), the top of the movable plate (6) is provided with a replacement mechanism, the top of the replacement mechanism is equipped with a mounting frame (7), the top of the mounting frame (7) is equipped with a tension wheel (8), the top of the tension wheel (8) is adapted to the bottom of the inner side of the chain (3); The replacement mechanism includes a mounting base (9), a mounting hole (10), a mounting block (11), a positioning hole (12), and a positioning pin (13). The mounting base (9) is symmetrically mounted on the top of the movable plate (6). The mounting base (9) has a mounting hole (10) inside. The mounting hole (10) is provided inside the mounting block (11). The mounting block (11) has a positioning hole (12) inside. The positioning hole (12) has a positioning pin (13) inside.

2. The sprocket tensioning device for a circular stacker-reclaimer according to claim 1, characterized in that: The inner diameter of the mounting hole (10) is larger than the outer diameter of the mounting block (11), and the mounting hole (10) and the mounting block (11) form a locking structure.

3. The sprocket tensioning device for a circular stacker-reclaimer according to claim 1, characterized in that: The moving mechanism includes a servo motor (14), a first bevel gear (15), a second bevel gear (16), a threaded rod (17), a threaded sleeve (18), a movable cavity (19), and a limiting structure. The servo motor (14) is installed below one side of the mounting cavity (5), and the first bevel gear (15) is installed below one side inside the mounting cavity (5). The output end of the servo motor (14) is connected to one end of the first bevel gear (15). The second bevel gear (16) meshes above the first bevel gear (15). The top of the second bevel gear (16) is equipped with a threaded rod (17). The outer side wall of the threaded rod (17) is provided with a threaded sleeve (18). The outer side wall of the threaded sleeve (18) is fixedly installed with a movable cavity (19). The top of the movable cavity (19) extends to the outside of the mounting cavity (5). The top of the movable cavity (19) is connected to the bottom of the movable plate (6).

4. The sprocket tensioning device for a circular stacker-reclaimer according to claim 3, characterized in that: The limiting structure includes a limiting groove (20) and a limiting block (21). The limiting groove (20) is opened inside the mounting cavity (5). The limiting block (21) is provided inside the limiting groove (20). One end of the limiting block (21) is connected to the outside of the movable cavity (19).

5. The sprocket tensioning device for a circular stacker-reclaimer according to claim 4, characterized in that: The cross-section of the limiting groove (20) is larger than the cross-section of the limiting block (21), and the limiting groove (20) and the limiting block (21) form a sliding structure.

6. The sprocket tensioning device for a circular stacker-reclaimer according to claim 5, characterized in that: Two limiting grooves (20) are provided inside the mounting cavity (5), and the two limiting grooves (20) are symmetrically distributed about the central axis of the mounting cavity (5).

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