Granulator

Abstract

The utility model discloses a pelletizer which comprises a machine body, a pelletizing mechanism, a shaper, a driving source and a speed reducer, the driving source is connected with the pelletizing mechanism through the speed reducer, the pelletizing mechanism comprises a pelletizing roller rotationally connected to the machine body, the shaper is arranged below the pelletizing mechanism and comprises a shaping roller, and the shaping roller is arranged below the machine body. An output shaft of the speed reducer is connected with the granulation roller, a belt wheel is arranged at the end part of the shaping roller, a belt wheel is also arranged on the output shaft of the speed reducer or the granulation roller, and the belt wheels are in connection transmission through a belt, so that the traditional hard transmission connection of a chain and a chain wheel is abandoned, and the transmission of the shaping roller and the granulation roller is realized through the belt wheels and the belt; when hard impurities such as iron blocks accidentally fall into the shaper to cause rotation and jamming of the shaping roller, the belt and the belt wheel can slip, power is cut off in time, the situation that the shaper is damaged and breaks down due to the fact that a driving source forcibly drives the shaping roller to rotate is avoided, and a good protection effect is achieved on pelletizer equipment.

Description

Technical Field

[0001] This utility model relates to the field of granulation, and in particular to a granulator. Background Technology

[0002] A granulator is a mechanical device that processes materials in powder, block, or paste form into granular products with specific shapes, sizes, and properties through specific processes and mechanical actions.

[0003] Double-roll granulators are currently the mainstream granulation equipment. They produce materials into granules of specific shapes through extrusion and granulation processes, and are widely used in fertilizer, chemical and other fields. Double-roll granulators mainly consist of a feed hopper, granulating rollers, a shaper, and a drive motor. The drive motor drives the granulating rollers to rotate to achieve granulation. The granulated material particles are then dispersed by the shaper at the bottom before being discharged. The granulating rollers and the shaping rollers of the shaper are usually connected by chains and sprockets for transmission. However, in actual use, when hard impurities such as iron blocks accidentally fall into the shaper, it can cause the shaping rollers to jam during rotation. In this case, the drive motor can continue to rotate, which can easily damage the shaper and ultimately lead to the failure of the entire equipment. Further improvements and refinements are needed. Utility Model Content

[0004] To further protect the equipment and reduce malfunctions, this application provides a granulator.

[0005] This application provides a granulator, which adopts the following technical solution:

[0006] A granulator includes a machine body, a granulation mechanism, a shaper, a drive source, and a reducer. The drive source is connected to the granulation mechanism via the reducer. The granulation mechanism includes a granulation roller rotatably connected to the machine body. The shaper is disposed below the granulation mechanism and includes a shaping roller. The output shaft of the reducer is connected to the granulation roller. A pulley is provided at the end of the shaping roller. A pulley is also provided on the output shaft of the reducer or on the granulation roller. The pulleys are connected for transmission via a belt.

[0007] Optionally, a bearing housing is provided on the side of the machine body away from the shaper, and one end of the shaping roller extends through the bearing housing, which is used to support the end of the shaping roller.

[0008] Optionally, one end of the output shaft of both the shaping roller and the reducer extends to the side of the machine body and the pulley is located at that end, with the belt located on one side of the machine body.

[0009] Optionally, the pulley is provided with a plurality of grooves along the axial direction, and the grooves are used to install belts.

[0010] Optionally, a tensioning wheel is provided on the machine body, the tensioning wheel is adjustablely mounted on the machine body, and one side of the tensioning wheel is used to abut against the belt.

[0011] Optionally, a mounting plate is detachably connected to the machine body, the tensioning wheel is rotatably connected to the mounting plate, the mounting plate has a through groove, the machine body has fixing holes, the fixing holes are spaced apart along the direction of the groove, and a locking element for connecting and fixing with the fixing hole is inserted in the groove.

[0012] Optionally, the outer diameter of the pulley on the granulation roller is larger than the outer diameter of the pulley on the shaping roller.

[0013] Optionally, the machine body includes a frame and a granulating roller bearing seat. The granulating roller bearing seat is located above the frame, and the granulating roller is rotatably connected to the granulating roller bearing seat. A discharge gap is formed between the top wall of the frame and the granulating roller bearing seat.

[0014] Optionally, a detachable outer cover is provided on one side of the machine body, and the pulley and belt are located inside the outer cover.

[0015] Optionally, the shaping roller includes a roller body and a drive shaft, and a connecting sleeve is provided between the roller body and the drive shaft to drive the synchronous rotation of the two. The two ends of the connecting sleeve are respectively inserted into the roller body and the drive shaft.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. Abandoning the traditional hard drive connection of chain and sprocket, the shaping roller and granulating roller are driven by pulleys and belts. When hard impurities such as iron blocks accidentally fall into the shaping device and cause the shaping roller to jam, the belt and pulley will slip, realizing timely power cut-off. This avoids the situation where the drive source forcibly drives the shaping roller to rotate, which may cause damage to the shaping device. This provides good protection for the granulator equipment.

[0018] 2. The bearing housing design can provide auxiliary support to the end of the shaping roller. In actual use, the belt will give the shaping roller an upward force, and the bearing housing can support and balance this force, thereby making the rotation of the shaping roller more stable and less prone to instability caused by uneven local force on the shaping roller.

[0019] 3. The pulley is designed with multiple axial grooves. When encountering materials with different hardness in actual use, multiple belts can be used to ensure stable transmission and avoid the belt slipping unexpectedly during normal operation of the shaping roller, which would affect the use. It can be applied to more scenarios and has better applicability.

[0020] 4. The adjustable design of the tensioner pulley allows for belt tensioning when wear and tear affects transmission stability after prolonged use. This ensures the belt remains in good working order and extends its lifespan. Furthermore, the belt and pulley are located on one side of the machine body for easy disassembly, replacement, and maintenance.

[0021] 5. Belt drives are cleaner than chain drives and do not cause oil to affect the surrounding environment. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of an embodiment of this application.

[0023] Figure 2 This is an internal structure diagram of an embodiment of this application.

[0024] Figure 3 This is a structural diagram of the internal structure of the shaper in an embodiment of this application.

[0025] Figure 4 This is a structural diagram of the connecting sleeve in an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Machine body; 2. Granulating mechanism; 3. Shaper; 4. Drive source; 5. Granulating roller; 6. Feed hopper; 7. Shaping roller; 8. Screen; 9. Discharge hopper; 10. First transmission gear; 11. Pulley; 12. Belt; 13. Second transmission gear; 14. Shaping strip; 15. Roller body; 16. Drive shaft; 17. Connecting sleeve; 18. Bearing seat; 19. Groove; 20. Mounting plate; 21. Tensioning wheel; 22. Groove; 23. Fixing hole; 24. Frame; 25. Granulating roller bearing seat; 26. Discharge spacing; 27. Outer cover; 28. Slot; 29. ​​Reducer; 30. Output shaft. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] A granulator, such as Figure 1 and Figure 2As shown, the system includes a body 1, a granulation mechanism 2, a shaping device 3, a drive source 4, and a reducer 29. The drive source 4 is connected to the granulation mechanism 2 via the reducer 29 for transmission. The granulation mechanism 2 includes two parallel granulation rollers 5. The surface of the granulation rollers 5 is evenly distributed with concave holes. The concave holes on the two granulation rollers 5 are joined together to form a complete circle. A feed hopper 6 is provided at the top of the body 1. The material enters the granulation mechanism 2 from the feed hopper 6 and is granulated by the rotation of the two granulation rollers 5. The shaping device 3 is located below the granulation mechanism 2 on the body 1. The granulated material falls into the shaping device 3 for further processing. The shaping device 3 includes two parallel shaping rollers 7. The shaping rollers 7 are rotatably connected to the body 1. A screen 8 is provided below the shaping rollers 7. The granulated material is broken up in the shaping device 3 and then screened through the screen 8. Finally, it is discharged by the discharge hopper 9 provided at the bottom of the body 1.

[0030] like Figure 1 and Figure 2 As shown, the drive source 4 includes a drive motor, which is located at the bottom of the machine body 1. The output end of the drive motor is connected to the input shaft of the reducer 29 via belt drive to transmit power. The output shaft 30 of the reducer 29 is connected to one of the granulating rollers 5, and the ends of the two granulating rollers 5 are provided with meshing first transmission gears 10. The synchronous rotation of the two granulating rollers 5 is achieved by the transmission of the first transmission gears 10. In addition, a transmission mechanism is provided between the output shaft 30 of the reducer 29 and the shaping roller 7 to transmit power. The transmission mechanism includes a pulley 11 and a belt 12. The pulley 11 is located at the end of the output shaft 30 of the reducer 29 and the end of the shaping roller 7, and the belt 12 connects the two pulleys 11 to transmit power.

[0031] This method abandons the traditional hard drive connection of chains and sprockets, and uses pulleys 11 and belts 12 to drive the shaping roller 7 and the output shaft 30 of the reducer 29. When hard impurities such as iron blocks accidentally fall into the shaping device 3 and cause the shaping roller 7 to jam, the belt 12 and pulleys 11 will slip, realizing timely power cut-off. This avoids the situation where the drive source 4 forcibly drives the shaping roller 7 to rotate, which would cause damage to the shaping device 3, and plays a good protective role for the granulator equipment.

[0032] like Figures 1-3 As shown, the output shaft 30 of the reducer 29 and the end of the pulley 11 of the shaping roller 7 are both located on one side of the machine body 1, that is, the pulley 11 and the belt 12 are located on the side of the machine body 1. This makes it more convenient to replace or repair the belt 12 in the future, and makes the disassembly and assembly of the belt 12 more convenient.

[0033] like Figures 1-3As shown, a second transmission gear 13 is provided at the end of the two shaping rollers 7 away from the pulley 11, which meshes with each other. The second transmission gear 13 enables the two shaping rollers 7 to rotate synchronously, achieving a good dispersing and shaping effect on the material. A uniformly distributed shaping strip 14 is provided on the shaping roller 7. The shaping strip 14 protrudes from the surface of the shaping roller 7 and extends radially. The shaping strip 14 helps to achieve a better dispersing and shaping effect.

[0034] like Figures 1-3 As shown, the shaping roller 7 includes a roller body 15 and a drive shaft 16. The roller body 15 and the drive shaft 16 are connected by a connecting sleeve 17 to achieve circumferential linkage. A bearing seat 18 is fixedly installed on one side of the machine body 1. The end of the drive shaft 16 away from the roller body 15 passes through the bearing seat 18. A bearing supporting the drive shaft 16 is installed inside the bearing seat 18. The pulley 11 is installed on the end of the drive shaft 16 that passes through the bearing seat 18. The design of the bearing seat 18 can provide auxiliary support to the end of the shaping roller 7. In actual use, the belt 12 will give the shaping roller 7 an upward force. The bearing seat 18 can support and balance this force, thereby making the rotation of the shaping roller 7 more stable and less prone to instability caused by uneven local force on the shaping roller 7.

[0035] like Figures 1-3 As shown, the outer diameter of the pulley 11 on the granulating roller 5 is larger than that on the shaping roller 7. This achieves power transmission while increasing the rotational speed, allowing the granulating roller 5 to rotate more efficiently and improve the dispersing and shaping effect. In addition, the pulley 11 has multiple grooves 19, which are distributed along the axial direction of the pulley 11. The grooves 19 are used for the installation of belts 12. The design of multiple axial grooves 19 on the pulley 11 allows for the use of multiple belts 12 to ensure stable transmission when there are differences in the hardness of the materials in actual use. This avoids the belts 12 slipping unexpectedly during the normal operation of the shaping roller 7, which would affect the use of the roller. This design makes the roller suitable for more scenarios and has better applicability.

[0036] like Figures 2-3 As shown, an adjustable mounting plate 20 is provided on the machine body 1. A tensioning wheel 21 is rotatably connected to the mounting plate 20. One side of the tensioning wheel 21 abuts against the belt 12. By adjusting the position of the tensioning wheel 21, the belt 12 can be tensioned. When the belt 12 wears down after long-term use and affects the transmission stability, the position of the tensioning wheel 21 can be adjusted by sliding to tension the belt 12, ensuring that the belt 12 continues to maintain a good working condition and extending the service life of the belt 12.

[0037] like Figure 2 and Figure 3As shown, a through groove 22 is provided on the mounting plate 20, and a fixing hole 23 is provided on the body 1 at the corresponding groove 22. The fixing holes 23 are distributed at intervals along the length of the groove 22. The mounting plate 20 and the tension wheel 21 can be fixed by inserting a locking member in the groove 22 to connect and fix with the fixing hole 23. The locking member can be a screw or a bolt, and the mounting plate 20 is fixed by pressing the end of the screw or bolt.

[0038] like Figure 2 and Figure 3 As shown, the machine body 1 includes a frame 24 and a granulating roller bearing seat 25. The granulating roller bearing seat 25 is fixedly installed on the top of the frame 24. The granulating roller 5 is rotatably connected to the granulating roller bearing seat 25. A discharge gap 26 is formed between the top wall of the frame 24 and the granulating roller bearing seat 25. In actual use, when foreign objects such as iron blocks fall into the shaping device 3 and cause the shaping roller 7 to jam, the belt 12 and the pulley 11 slip. At this time, the drive motor continues to drive the granulating roller 5 to rotate, that is, the material continues to be granulated and fall into the shaping device 3. With the help of the design of the discharge gap 26, the excess material can be discharged in time through the discharge gap 26, avoiding the situation where the material overflows the granulating roller 5 and causes it to be affected or even damaged.

[0039] like Figure 2 As shown, an outer cover 27 is provided on one side of the machine body 1 and is detachably connected to it. The outer cover 27 is used to cover the belt 12 and the pulley 11, providing good protection for them and preventing personnel from accidentally touching the pulley 11 and causing damage. The outer cover 27 is fixed to the machine body 1 with screws to achieve a detachable connection.

[0040] like Figure 3 and Figure 4 As shown, the connecting sleeve 17 is made of a thin-walled material with insufficient structural strength, such as a plastic sleeve. The two ends of the connecting sleeve 17 have square slots 28. The slots 28 are used to connect and adapt to the roller body 15 and the drive shaft 16 respectively to achieve circumferential linkage. When jamming occurs and the belt 12 does not slip and cut off the power transmission, the connecting sleeve 17 will be damaged by force and disconnect the power transmission in time, thus achieving the function of secondary protection. Multiple protections prevent damage to the shaping device 3 and the granulator equipment, and avoid unnecessary waste.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A granulator, characterized in that: The system includes a body (1), a granulation mechanism (2), a shaper (3), a drive source (4), and a reducer (29). The drive source (4) is connected to the granulation mechanism (2) via the reducer (29). The granulation mechanism (2) includes a granulation roller (5) rotatably connected to the body (1). The shaper (3) is located below the granulation mechanism (2) and includes a shaping roller (7). The output shaft (30) of the reducer (29) is connected to the granulation roller (5). A pulley (11) is provided at the end of the shaping roller (7). A pulley (11) is also provided on the output shaft (30) of the reducer (29) or on the granulation roller (5). The pulley (11) is connected and driven by a belt (12).

2. The granulator according to claim 1, characterized in that: A bearing seat (18) is provided on the side of the machine body (1) away from the shaper (3), and one end of the shaping roller (7) extends through the bearing seat (18). The bearing seat (18) is used to support the end of the shaping roller (7).

3. A granulator according to claim 1 or 2, characterized in that: The output shafts (30) of the shaping roller (7) and the reducer (29) both extend to the side of the machine body (1) and the pulley (11) is located at this end. The belt (12) is located on one side of the machine body (1).

4. A granulator according to claim 1 or 2, characterized in that: The pulley (11) is provided with a plurality of grooves (19) along the axial direction, and the grooves (19) are used to install belts (12).

5. A granulator according to claim 1, characterized in that: The machine body (1) is provided with a tension wheel (21), which is adjustablely mounted on the machine body (1). One side of the tension wheel (21) is used to abut against the belt (12).

6. A granulator according to claim 5, characterized in that: A mounting plate (20) is detachably connected to the body (1). The tensioning wheel (21) is rotatably connected to the mounting plate (20). A through groove (22) is provided on the mounting plate (20). A fixing hole (23) is provided on the body (1). The fixing holes (23) are spaced along the direction of the groove (22). A locking element for connecting and fixing with the fixing hole (23) is provided in the groove (22).

7. A granulator according to claim 1, characterized in that: The outer diameter of the pulley (11) on the granulation roller (5) is larger than the outer diameter of the pulley (11) on the shaping roller (7).

8. A granulator according to claim 1, characterized in that: The machine body (1) includes a frame (24) and a granulating roller bearing seat (25). The granulating roller bearing seat (25) is located above the frame (24). The granulating roller (5) is rotatably connected to the granulating roller bearing seat (25). A discharge gap (26) is formed between the top wall of the frame (24) and the granulating roller bearing seat (25).

9. A granulator according to claim 1, characterized in that: A detachable outer cover (27) is provided on one side of the body (1), and the pulley (11) and belt (12) are located inside the outer cover (27).

10. A granulator according to claim 1, characterized in that: The shaping roller (7) includes a roller body (15) and a drive shaft (16). A connecting sleeve (17) is provided between the roller body (15) and the drive shaft (16) to drive the two to rotate synchronously. The two ends of the connecting sleeve (17) are respectively inserted into the roller body (15) and the drive shaft (16).

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