A biomass pellet machine

Abstract

A biomass pellet mill belongs to the technical field of pellet processing equipment. It includes a main motor, a gearbox, a pelletizing chamber, a cutting motor, and a cutter. The main motor and pelletizing chamber are fixed to the upper side of the gearbox. The main motor is connected to the pelletizing mechanism inside the pelletizing chamber through the gearbox. It also includes a top plate. The lower end of the cutter is rotatably mounted relative to an external gear ring. The top plate is located on the opposite side of the direction the cutter rotates with the external gear ring, perpendicular to the cutter. The top plate also rotates relative to the external gear ring, and a return spring is provided between the top plate and the external gear ring. This biomass pellet mill uses the top plate to fix the cutter and increase its strength. When the cutter encounters a hard pellet that cannot be cut immediately, the cutter deforms and pushes the top plate to tilt. The top plate no longer provides support for the cutter, and the cutter rotates with the top plate under the pressure of the pellet, thus avoiding the pellet, preventing cutter damage, and extending the cutter's service life.

Description

Technical Field

[0001] A biomass pellet machine, belonging to the technical field of pellet processing equipment. Background Technology

[0002] A biomass pellet mill is a device used to process crushed biomass into pellets. It can process agricultural and forestry waste such as wood chips, straw, rice husks, and bark into high-density pellet fuel.

[0003] CN119656973A discloses a pelletizing machine, including a pelletizing machine base. A connecting chamber is fixedly connected to one side of the top of the pelletizing machine base, and a forming chamber is fixedly connected to the top of the connecting chamber. A feed inlet is fixedly connected to the middle of the top of the forming chamber, and a discharge outlet is fixedly connected to one side of the forming chamber. A first drive motor is fixedly connected to one side of the top of the pelletizing machine base. The rotation of the first toothed ring of this pelletizing machine drives a cutting blade to rotate along the outer surface of the ring mill, cutting the extruded biomass pellets to complete the processing of the biomass pellets. Simultaneously, the rotation of the cutting blade also pushes the cut biomass pellets out of the machine, increasing the discharge speed and improving work efficiency.

[0004] If the cutting blade encounters particles with a lot of fibers during the cutting process, it may damage the cutting blade, causing it to deform and affecting subsequent production. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a biomass pellet machine that can effectively improve the service life of the cutter.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The biomass pellet mill includes a main motor, a gearbox, a pelleting chamber, a cutting motor, and a cutter. The main motor and the pelleting chamber are fixed on the upper side of the gearbox. The main motor is connected to the pelleting mechanism inside the pelleting chamber through the gearbox. The cutting motor is fixed to one side of the pelleting chamber through a motor mounting seat. The upper part of the pelleting chamber is provided with a bearing gear, which includes an inner ring and an outer gear ring. The inner ring is fixedly connected to the pelleting chamber. The cutting motor is connected to a cutting gear, which meshes with the outer gear ring. The cutter is set on the outer gear ring.

[0007] It also includes a top plate, the lower end of the cutter is rotatably arranged relative to the outer gear ring, the top plate is arranged on the other side of the direction of rotation of the cutter with the outer gear ring, the top plate and the cutter are arranged perpendicular to each other, the top plate is also rotatably arranged relative to the outer gear ring, and a return spring is provided between the top plate and the outer gear ring.

[0008] Preferably, the cutter is provided with an actuation protrusion that contacts the top plate, and the actuation protrusion is located on the side of the top plate near the granulation mechanism.

[0009] Preferably, the actuating protrusion is arc-shaped.

[0010] Preferably, the reset spring is a reset torsion spring, with its two ends connected to an external gear ring and a top plate, respectively.

[0011] Preferably, one end of the cutting edge of the cutter has a thickened portion, which is located on the other side of the direction of rotation of the cutter with the outer gear ring.

[0012] Preferably, a fixing plate is provided on the upper side of the external gear ring, and the cutter and the top plate are rotatably mounted on the fixing plate.

[0013] Preferably, the upper part of the granulation chamber is provided with an annular fixed seat, the granulation mechanism is located inside the fixed seat, a dust cover is provided on the upper side of the fixed seat, a feeding chamber is provided in the middle of the dust cover, and the lower part of the feeding chamber is connected to the granulation mechanism.

[0014] Preferably, the upper surface of the fixing seat has a groove at its edge, a step is formed at the upper surface edge of the fixing seat, and a connecting plate is provided on the inner side of the inner ring, the connecting plate being fixedly connected to the bottom of the groove.

[0015] Preferably, the cutting motor is fixed to the lower side of the mounting base via a motor mounting bracket.

[0016] Compared with existing technologies, the beneficial effects of the above-mentioned technical solution of this biomass pellet machine are:

[0017] This biomass pellet mill features a rotatable cutter with a top plate at its rear. The top plate secures the cutter and enhances its strength. When the cutter encounters a hard pellet that cannot be cut immediately, the cutter deforms and pushes the top plate to tilt. The top plate then stops supporting the cutter, and the cutter rotates with the top plate under the pressure of the pellet, thus avoiding the pellet and preventing damage to the cutter, thereby extending its service life. Attached Figure Description

[0018] Figure 1 This is the front view of the biomass pellet machine.

[0019] Figure 2 This is a top view of the biomass pellet machine.

[0020] Figure 3 for Figure 2 Sectional view at point AA.

[0021] Figure 4 for Figure 2 A magnified view of a section at point B in the middle.

[0022] Figure 5 for Figure 3A magnified view of a section at point C.

[0023] Figure 6 This is a three-dimensional view of the cutter and the top plate.

[0024] Figure 7 For the cutter and top plate after swinging.

[0025] The components include: 1. Main motor; 2. Gearbox; 3. Granulation chamber; 4. Granulation mechanism; 5. Cutting motor; 6. Motor mounting base; 7. Dust cover; 8. Feed chamber; 9. Cutter; 10. Outer gear ring; 11. Inner ring; 12. Fixing base; 13. Fixing plate; 14. Cutting gear; 15. Discharge port; 16. Top plate; 17. Return spring; 18. Actuation protrusion; 19. Thickened part; 20. Groove; 21. Connecting plate; 22. Baffle plate; 23. Detection switch. Detailed Implementation

[0026] Figures 1-7 This is the best embodiment of the biomass pellet mill, as described below in conjunction with the appendix. Figures 1-7 The present invention will be further described below.

[0027] Reference Figure 1-3 The biomass pellet mill includes a main motor 1, a gearbox 2, a pelleting chamber 3, a cutting motor 5, and a cutter 9. The main motor 1 and the pelleting chamber 3 are fixed on the upper side of the gearbox 2. The main motor 1 is connected to the pelleting mechanism 4 inside the pelleting chamber 3 through the gearbox 2. The cutting motor 5 is fixed to one side of the pelleting chamber 3 through a motor mounting seat 6. The upper part of the pelleting chamber 3 is provided with a bearing gear. The cutting motor 5 is connected to a cutting gear 14, which meshes with the bearing gear. The cutter 9 is set on the bearing gear. The bearing gear drives the cutter 9 to rotate, thereby cutting the biomass pellets extruded by the pelleting mechanism 4. Finally, the pellets are discharged from the discharge port 15.

[0028] The upper part of the granulation chamber 3 is provided with an annular fixed seat 12, and the granulation mechanism 4 is located inside the fixed seat 12. A dust cover 7 is provided on the upper side of the fixed seat 12, and a feeding chamber 8 is provided in the middle of the dust cover 7. The lower part of the feeding chamber 8 is connected to the granulation mechanism 4. The cutting motor 5 is fixed to the lower side of the fixed seat 12 through the motor mounting seat 6.

[0029] See Figure 4-6 The biomass pellet machine in this embodiment also includes a top plate 16. The lower end of the cutter 9 is rotatably arranged relative to the outer gear ring 10. The top plate 16 is arranged on the other side of the direction of rotation of the cutter 9 with the outer gear ring 10. The top plate 16 and the cutter 9 are arranged perpendicular to each other. The top plate 16 is also rotatably arranged relative to the outer gear ring 10. A return spring 17 is also provided between the top plate 16 and the outer gear ring 10.

[0030] The cutter 9 is provided with an actuating protrusion 18, which contacts the top plate 16 and is located on the side of the top plate 16 near the pelletizing mechanism 4. In this embodiment, the actuating protrusion 18 is arc-shaped. When the cutter 9 cannot cut the biomass pellets in time, the cutter 9 will deform slightly. At this time, the actuating part will press the top plate 16, causing the top plate 16 to deflect. The cutter 9 will then rotate, thereby preventing damage to the cutter 9.

[0031] The blade of the cutter 9 has a thickened portion 19 at one end, located on the opposite side of the direction of rotation of the cutter 9 with the external gear ring 10. This further enhances the strength of the cutter 9. The return spring 17 is a return torsion spring, with its two ends connected to the external gear ring 10 and the top plate 16, respectively. A detection switch 23 is provided on one side of the top plate 16. When the detection switch 23 detects the top plate 16, the equipment stops operating and requires inspection to prevent further damage.

[0032] The bearing gear includes an inner ring 11 and an outer gear ring 10. The inner ring 11 is rotatably disposed inside the outer gear ring 10, and ball bearings are provided between the inner ring 11 and the outer gear ring 10. The inner ring 11 is fixedly connected to the fixed base 12. The cutting motor 5 is connected to a cutting gear 14, which meshes with the outer gear ring 10. A cutter 9 is disposed on the outer gear ring 10. In this embodiment, a fixed plate 13 is provided on the upper side of the outer gear ring 10, and both the cutter 9 and the top plate 16 are rotatably disposed on the fixed plate 13.

[0033] The upper surface of the fixing base 12 has a groove 20 at its edge, forming a step. A connecting plate 21 is located on the inner side of the inner ring 11, and is fixedly connected to the bottom of the groove 20. This allows the cutter 9 to be positioned as close as possible to the upper surface of the fixing base 12, ensuring that the cut pellets are conveyed to the discharge port 15. A baffle plate 22 is also provided at the discharge port 15. The baffle plate 22 is inclined in the opposite direction to the cutter 9. After the cutter 9 cuts the biomass extruded from the pelletizing mechanism 4 into pellets, it pushes them to the discharge port 15, where they are blocked by the baffle plate 22 and discharged through the discharge port 15.

[0034] See Figure 7 The biomass pellet mill has a rotatable cutter 9, with a top plate 16 installed behind it. The top plate 16 is used to fix the cutter 9 and increase its strength. When the cutter 9 encounters a hard pellet that cannot be cut in time, the actuator will push the top plate 16 to tilt after the cutter 9 deforms. The top plate 16 no longer provides support for the cutter 9, and the cutter 9 rotates with the top plate 16 under the pressure of the pellet, thus avoiding the pellet. During this process, the detection switch 23 detects the top plate 16, and then the equipment stops running to prevent the cutter 9 from being damaged further and to extend its service life.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A biomass pelletizer characterized by: The system includes a main motor (1), a gearbox (2), a granulation chamber (3), a cutting motor (5), and a cutter (9). The main motor (1) and the granulation chamber (3) are fixed on the upper side of the gearbox (2). The main motor (1) is connected to the granulation mechanism (4) inside the granulation chamber (3) through the gearbox (2). The cutting motor (5) is fixed on one side of the granulation chamber (3) through the motor mounting seat (6). The upper part of the granulation chamber (3) is provided with a bearing gear, which includes an inner ring (11) and an outer gear ring (10). The inner ring (11) is fixedly connected to the granulation chamber (3). The cutting motor (5) is connected to a cutting gear (14), which meshes with the outer gear ring (10). The cutter (9) is set on the outer gear ring (10). It also includes a top plate (16), the lower end of the cutter (9) is rotatably arranged relative to the outer gear ring (10), the top plate (16) is arranged on the other side of the direction of rotation of the cutter (9) with the outer gear ring (10), the top plate (16) and the cutter (9) are arranged perpendicular to each other, the top plate (16) is also rotatably arranged relative to the outer gear ring (10), and a return spring (17) is provided between the top plate (16) and the outer gear ring (10).

2. The biomass pellet mill according to claim 1, wherein: The cutter (9) is provided with an actuation protrusion (18), which is in contact with the top plate (16) and is located on the side of the top plate (16) near the granulation mechanism (4).

3. The biomass pellet mill according to claim 2, wherein: The actuating protrusion (18) is arc-shaped.

4. The biomass pellet mill of claim 1, wherein: The reset spring (17) is a reset torsion spring, and the two ends of the reset torsion spring are respectively connected to the outer toothed ring (10) and the top plate (16).

5. The biomass pellet mill of claim 1, wherein: The blade of the cutter (9) has a thickened part (19) at one end, and the thickened part (19) is located on the other side of the direction of rotation of the cutter (9) with the outer gear ring (10).

6. The biomass pellet mill of claim 1, wherein: The upper side of the external gear ring (10) is provided with a fixing plate (13), and the cutter (9) and the top plate (16) are rotatably mounted on the fixing plate (13).

7. The biomass pellet mill of claim 1, wherein: The upper part of the granulation chamber (3) is provided with an annular fixed seat (12), the granulation mechanism (4) is located inside the fixed seat (12), a dust cover (7) is provided on the upper side of the fixed seat (12), a feeding chamber (8) is provided in the middle of the dust cover (7), and the lower part of the feeding chamber (8) is connected to the granulation mechanism (4).

8. The biomass pellet mill according to claim 7, wherein: The upper surface edge of the fixed seat (12) has a groove (20) and a step is formed on the upper surface edge of the fixed seat (12). The inner side of the inner ring (11) has a connecting plate (21) and the connecting plate (21) is fixedly connected to the bottom of the groove (20).

9. The biomass pellet mill of claim 7, wherein: The cut-off motor (5) is fixed to the underside of the fixed base (12) via the motor mounting bracket (6).

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