Compression roller device for granulator processing

Abstract

The utility model provides a compression roller device for granulator processing, and relates to the technical field of compression rollers. The compression roller device for granulator processing comprises an eccentric shaft, two bearings and a compression roller shell, the two bearings are both installed on the outer side of the eccentric shaft, and the compression roller shell is installed between the outer sides of the two bearings. According to the compression roller device for granulator processing, a traditional compression roller shell is divided into the compression roller sleeve and the two compression roller skins, and the two compression roller skins are clamped and mounted on the compression roller sleeve through the clamping assemblies, so that a traditional integrated structure is avoided, and after the compression roller skins on the outer side of the compression roller sleeve are abraded, the compression roller skins cannot be damaged; according to the press roll device, the press roll leather can be quickly disassembled and replaced by utilizing the disassembling assembly, so that the step of disassembling an eccentric shaft in a traditional press roll device is omitted, the disassembly and the replacement are quicker, and meanwhile, only the press roll leather needs to be produced by a manufacturer subsequently, so that the maintenance cost is reduced, and the practical application is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pressure roller technology, specifically a pressure roller device for granulator processing. Background Technology

[0002] A pellet mill is a device that grinds moist powdery raw materials into granules. When processing powdery raw materials, a pellet mill typically uses its internal pressure rollers for grinding. The pressure rollers are one of the main working components of the pellet mill, primarily used for processing various biofuel pellets, animal feed, and other granules. The pressure rollers are usually made of high-wear-resistant alloy steel and undergo carburizing treatment, resulting in high hardness and wear resistance, ensuring stable performance and a long service life during use.

[0003] However, in existing pellet mills, the pressure rollers are generally constructed by an eccentric shaft and a pressure roller shell. The pressure roller shell is mounted on the outside of the eccentric shaft via bearings and other equipment. When the pressure roller shell is severely worn, the eccentric shaft and the pressure roller shell must be disassembled before a new pressure roller shell can be replaced. This makes it difficult to replace the pressure roller shell after the traditional pellet mill pressure rollers have worn out, which is not conducive to practical applications.

[0004] Therefore, those skilled in the art provide a pressure roller device for pellet mill processing to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pressure roller device for pellet mill processing, which solves the problem mentioned in the background art that it is inconvenient to replace the pressure roller shell after the traditional pellet mill pressure roller has worn down.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure roller device for granulator processing, comprising an eccentric shaft, two bearings and a pressure roller shell, wherein the two bearings are both installed on the outer side of the eccentric shaft, and the pressure roller shell is installed between the outer sides of the two bearings. The pressure roller shell is composed of a pressure roller sleeve and two pressure roller skins, and the pressure roller sleeve is installed between the outer sides of the two bearings.

[0007] The inside of the pressure roller sleeve is provided with three snap-fit ​​components and three disassembly components at equal intervals. The snap-fit ​​components are used to snap the pressure roller skin onto the outside of the pressure roller sleeve, and the disassembly components are used to cooperate with the snap-fit ​​components to disassemble the pressure roller skin.

[0008] The above technical solution splits the traditional pressure roller shell into a pressure roller sleeve and two pressure roller skins. The two pressure roller skins are then snapped onto the pressure roller sleeve using a snap-fit ​​assembly. This avoids the traditional integrated structure. When the pressure roller skin on the outer side of the pressure roller sleeve wears out, the disassembly assembly can be used to quickly disassemble and replace the pressure roller skin. This eliminates the need to disassemble the eccentric shaft in traditional pressure roller devices, making disassembly and replacement faster. At the same time, manufacturers only need to produce the pressure roller skins, thus reducing maintenance costs and benefiting practical applications.

[0009] Preferably, the snap-fit ​​assembly includes a snap-fit ​​groove, a buffer groove, two springs, and a snap-fit ​​block. The snap-fit ​​groove is formed on the inner wall of the pressure roller skin, the buffer groove is formed inside the pressure roller sleeve, the two springs are both installed on the inner wall of the buffer groove, the snap-fit ​​block is installed on one end of the two springs and is slidably connected to the buffer groove, and one end of the bottom of the snap-fit ​​block extends into the interior of the corresponding snap-fit ​​groove.

[0010] The above technical solution utilizes the elastic force of the spring to allow one end of the bottom of the clamping block to extend into the inside of the clamping groove. By utilizing the cooperation between the bottom end of the clamping block and the clamping groove, the pressure roller skin can be better clamped and fixed to the outside of the pressure roller sleeve.

[0011] Preferably, the disassembly assembly includes an unlocking groove, a screw, and an unlocking block. The unlocking groove is located inside the pressure roller sleeve and above the buffer groove. The screw is rotatably connected inside the unlocking groove. The unlocking block is threaded to the outside of the screw and slidably connected to the unlocking groove. The top and bottom sides of the locking block away from the spring are both provided with inclined surfaces. One end of the bottom of the unlocking block is provided with an inclined surface structure that cooperates with the top of the locking block. The inclined surface at the bottom of the unlocking block extends into the buffer groove and is slidably connected to the inclined surface at the top of the locking block.

[0012] Through the above technical solution, the rotation of the screw can drive the unlocking block to slide inside the unlocking groove. At the same time, when the unlocking block slides inside the unlocking groove, the cooperation between the bottom of the unlocking block and the inclined surface of the top of the card block can push the card block to move inside the buffer groove.

[0013] Preferably, each end of the pressure roller sleeve and on one side of the unlocking groove is provided with a knob groove, and one end of each screw extends into the interior of the corresponding knob groove and is fixedly connected with a turning knob.

[0014] The above technical solution allows the screw to rotate by turning the knob.

[0015] Preferably, the inner wall of the pressure roller skin is provided with three equidistant limiting grooves, and the outer side of the pressure roller sleeve is provided with three equidistant limiting strips, and the limiting strips are slidably connected to the corresponding limiting grooves.

[0016] By utilizing the above technical solution and the cooperation between the limiting strip and the limiting groove, the pressure roller skin can be better positioned when it is installed on the outside of the pressure roller sleeve.

[0017] Preferably, the inner walls of the two pressure rollers are provided with inclined structures that cooperate with the bottom of the card block at their close ends.

[0018] By utilizing the above technical solution, the inclined surface is used to push the clamping block to move inside the buffer groove when installing the pressure roller skin. This pushes the clamping block against the inclined surface at the bottom of the clamping block and compresses the spring. When the clamping groove on the inner wall of the pressure roller skin moves to one side of the clamping block, the clamping block returns to its original position under the elastic force of the spring, and one end of the clamping block enters the interior of the clamping groove, thus facilitating and quickly completing the clamping action.

[0019] Preferably, both ends of the eccentric shaft and located on the outer side of the pressure roller sleeve are threadedly connected to pressure caps. Each pressure cap includes an outer ring and an inner ring. The inner ring is threadedly connected to the eccentric shaft, and the outer ring is rotatably connected to the outer side of the inner ring. The outer ring is pressed against the end of the pressure roller skin.

[0020] The above technical solution utilizes the outer and inner rings of the pressure cap to cover the gap between the pressure roller sleeve and the eccentric shaft.

[0021] This utility model provides a pressure roller device for pellet mill processing, which has the following beneficial effects:

[0022] This pellet mill processing roller device separates the traditional roller shell into a roller sleeve and two roller skins. The two roller skins are then snapped onto the roller sleeve using a snap-fit ​​assembly, thus avoiding the traditional integrated structure. When the roller skin on the outer side of the roller sleeve wears out, the roller skin can be quickly disassembled and replaced using the disassembly assembly. This eliminates the need to disassemble the eccentric shaft in traditional roller devices, making disassembly and replacement much faster. Furthermore, manufacturers only need to produce the roller skins, reducing maintenance costs and benefiting practical applications. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram showing the overall structure of this utility model broken down.

[0025] Figure 3 This is a cross-sectional view of the internal structure of this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a schematic diagram of the snap-fit ​​assembly and disassembly assembly of this utility model;

[0028] Figure 6 This is a schematic diagram of the pressure roller skin structure of this utility model.

[0029] In the diagram: 1. Eccentric shaft; 2. Pressure roller sleeve; 3. Pressure roller skin; 4. Slot; 5. Buffer groove; 6. Spring; 7. Locking block; 8. Unlocking groove; 9. Screw; 10. Unlocking block; 11. Knob groove; 12. Turning knob; 13. Bearing; 14. Limiting groove; 15. Limiting strip; 16. Pressure cap. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 This utility model provides a pressure roller device for granulator processing, including an eccentric shaft 1, two bearings 13, and a pressure roller shell. Both bearings 13 are mounted on the outer side of the eccentric shaft 1, and the pressure roller shell is mounted between the outer sides of the two bearings 13. The pressure roller shell consists of a pressure roller sleeve 2 and two pressure roller skins 3, with the pressure roller sleeve 2 mounted between the outer sides of the two bearings 13.

[0032] The pressure roller sleeve 2 has three snap-fit ​​components and three disassembly components equidistantly arranged inside. The snap-fit ​​components are used to snap the pressure roller skin 3 onto the outside of the pressure roller sleeve 2. By splitting the traditional pressure roller shell into one pressure roller sleeve 2 and two pressure roller skins 3, and snapping the two pressure roller skins 3 onto the pressure roller sleeve 2 using the snap-fit ​​components, the traditional integrated structure is avoided. The inner wall of the pressure roller skin 3 has three equidistant limiting grooves 14, and the outer side of the pressure roller sleeve 2 has three equidistant limiting strips 15. Each limiting strip 15 is slidably connected to its corresponding limiting groove 14. The cooperation between the limiting strips 15 and the limiting grooves 14 allows for better positioning when installing the pressure roller skin 3 on the outside of the pressure roller sleeve 2. The disassembly components are used in conjunction with the snap-fit ​​components to disassemble the pressure roller skin 3. When the pressure roller skin 3 on the outer side of the pressure roller sleeve 2 wears out, the disassembly and replacement of the pressure roller skin 3 can be quickly completed using the disassembly assembly. This saves the step of disassembling the eccentric shaft 1 required in traditional pressure roller devices, making disassembly and replacement faster. Furthermore, manufacturers only need to produce the pressure roller skin 3 subsequently, thus reducing maintenance costs and benefiting practical applications. Both ends of the eccentric shaft 1, located on the outer side of the pressure roller sleeve 2, are threadedly connected to pressure caps 16. Pressure caps 16 include an outer ring and an inner ring. The inner ring is threadedly connected to the eccentric shaft 1, and the outer ring is rotatably connected to the outside of the inner ring, pressing against the end of the pressure roller skin 3. The outer and inner rings of the pressure caps 16 cover the gap between the pressure roller sleeve 2 and the eccentric shaft 1.

[0033] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 In one aspect of this embodiment, the snap-fit ​​assembly includes a snap-fit ​​groove 4, a buffer groove 5, two springs 6, and a snap-fit ​​block 7. The snap-fit ​​groove 4 is formed on the inner wall of the pressure roller skin 3. The buffer groove 5 is formed inside the pressure roller sleeve 2. Both springs 6 are mounted on the inner wall of the buffer groove 5, and the snap-fit ​​block 7 is mounted on one end of each of the two springs 6 and is slidably connected to the buffer groove 5. One end of the bottom of each snap-fit ​​block 7 extends into the corresponding snap-fit ​​groove 4. Utilizing the elastic force of the springs 6, one end of the bottom of the snap-fit ​​block 7 can extend into the inside of the snap-fit ​​groove 4. The engagement between the bottom end of the snap-fit ​​block 7 and the snap-fit ​​groove 4 can better snap and fix the pressure roller skin 3 to the outside of the pressure roller sleeve 2.

[0034] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6In one aspect of this embodiment, the disassembly assembly includes an unlocking groove 8, a screw 9, and an unlocking block 10. The unlocking groove 8 is located inside the pressure roller sleeve 2 and above the buffer groove 5. The screw 9 is rotatably connected inside the unlocking groove 8, and the unlocking block 10 is threaded to the outside of the screw 9 and slidably connected to the unlocking groove 8. By rotating the screw 9, the unlocking block 10 can be driven to slide inside the unlocking groove 8. The top and bottom sides of the locking block 7 away from the spring 6 are both provided with inclined surfaces. One end of the bottom of the unlocking block 10 is provided with an inclined surface structure that cooperates with the top of the locking block 7. The inclined surface at the bottom of the unlocking block 10 extends into the interior of the buffer groove 5 and is slidably connected with the inclined surface at the top of the locking block 7. When the unlocking block 10 slides inside the unlocking groove 8, the cooperation between the two inclined surfaces can push the locking block 7 to move inside the buffer groove 5. Both inner walls of the two pressure roller skins 3 have inclined surfaces that cooperate with the bottom of the locking block 7 at their close ends. By utilizing the inclined surfaces, when installing the pressure roller skin 3, the inclined surfaces on the inner walls of the pressure roller skin 3 abut against the inclined surfaces at the bottom of the locking block 7, which pushes the locking block 7 to move inside the buffer groove 5 and compresses the spring 6. When the locking groove 4 on the inner wall of the pressure roller skin 3 moves to one side of the locking block 7, the locking block 7 returns to its original position under the elastic force of the spring 6, and one end of the bottom of the locking block 7 enters the interior of the locking groove 4, thereby facilitating and quickly completing the locking action.

[0035] The end of the pressure roller sleeve 2 and one side of the unlocking groove 8 are provided with a knob groove 11. One end of the screw 9 extends into the corresponding knob groove 11 and is fixedly connected with a turning knob 12. Turning the knob 12 can drive the screw 9 to rotate.

[0036] Working principle:

[0037] When in use, the entire device is installed inside the pellet mill, and pelleting processing can then be performed through the pellet mill.

[0038] When the pressure roller skin 3 is severely worn, the equipment is removed from the pellet mill. Then, the screwdriver is used to turn the knob 12, which in turn drives the screw 9 to rotate. The rotation of the screw 9 causes the unlocking block 10 to slide inside the unlocking groove 8 towards the buffer groove 5. The cooperation between the inclined surface at the bottom of the unlocking block 10 and the inclined surface at the top of the locking block 7 pushes the locking block 7 inside the buffer groove 5 towards the spring 6, so that one end of the locking block 7 is disengaged from the inside of the locking groove 4. Then the corresponding pressure roller skin 3 can be disassembled. At the same time, the screw 9 is turned in the opposite direction to return the unlocking block 10 to its original position, thus completing one disassembly action. Repeat the above actions to disassemble the other pressure roller skin 3.

[0039] Then, replace the new pressure roller skin 3. Align the limiting strip 15 on the inner wall of the new pressure roller skin 3 with the limiting groove 14 on the outer side of the pressure roller sleeve 2 and insert it so that the pressure roller skin 3 is installed on the outer side of the pressure roller sleeve 2. At the same time, the inclined surface on the inner wall of the pressure roller skin 3 abuts against the inclined surface at the bottom of the locking block 7, which can push the locking block 7 to move inside the buffer groove 5 and squeeze the spring 6. When the locking groove 4 on the inner wall of the pressure roller skin 3 moves to one side of the locking block 7, the locking block 7 returns to its original position under the elastic force of the spring 6, and one end of the bottom of the locking block 7 enters the interior of the locking groove 4, thus facilitating and quickly completing the locking action. This saves the step of disassembling the eccentric shaft 1 required in the traditional pressure roller device, making disassembly and replacement faster. At the same time, the manufacturer only needs to produce the pressure roller skin 3, thereby reducing maintenance costs and benefiting practical applications.

[0040] 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 press roller device for a granulator, comprising an eccentric shaft (1), two bearings (13) and a press roller shell, both bearings (13) are installed on the outer side of the eccentric shaft (1), the press roller shell is installed between the outer sides of the two bearings (13), characterized in that, The shell of the compression roller is composed of a compression roller sleeve (2) and two compression roller skins (3), the compression roller sleeve (2) is installed between the outer sides of two bearings (13); The inside of the compression roller sleeve (2) is equidistantly provided with three clamping assemblies and three disassembling assemblies, the clamping assemblies are used for clamping the compression roller skins (3) on the outer side of the compression roller sleeve (2), and the disassembling assemblies are used for disassembling the compression roller skins (3) in cooperation with the clamping assemblies.

2. A press roll arrangement for a pellet mill as claimed in claim 1, characterized in that: The clamping assembly comprises a clamping groove (4), a buffer groove (5), two springs (6) and a clamping block (7), the clamping groove (4) is formed in the inner wall of the compression roller skin (3), the buffer groove (5) is formed in the inside of the compression roller sleeve (2), the two springs (6) are both installed on the inner wall of the buffer groove (5), the clamping block (7) is installed on one end of the two springs (6) and is in sliding connection with the buffer groove (5), and one end of the bottom of the clamping block (7) extends into the inside of the corresponding clamping groove (4).

3. A press roll arrangement for a pellet mill as claimed in claim 2, characterized in that: The disassembling assembly comprises an unlocking groove (8), a screw rod (9) and an unlocking block (10), the unlocking groove (8) is formed in the inside of the compression roller sleeve (2) and is located above the buffer groove (5), the screw rod (9) is in rotating connection in the inside of the unlocking groove (8), the unlocking block (10) is in threaded connection on the outer side of the screw rod (9) and is in sliding connection with the unlocking groove (8), and the top and the bottom of the clamping block (7) are both provided with inclined surfaces away from the spring (6), one end of the bottom of the unlocking block (10) is provided with an inclined surface structure matched with the top of the clamping block (7), and the inclined surface of the bottom of the unlocking block (10) extends into the inside of the buffer groove (5) and is in sliding connection with the inclined surface of the top of the clamping block (7).

4. A press roll arrangement for a pellet mill as claimed in claim 3, characterized in that: The end of the compression roller sleeve (2) and located on one side of the unlocking groove (8) is provided with a knob groove (11), and one end of the screw rod (9) extends into the inside of the corresponding knob groove (11) and is fixedly connected with a knob (12).

5. The press roll apparatus for a pellet mill as claimed in claim 1, characterized in that: The inner wall of the compression roller skin (3) is equidistantly provided with three limiting grooves (14), and the outer side of the compression roller sleeve (2) is equidistantly provided with three limiting strips (15), and the limiting strips (15) are in sliding connection with the corresponding limiting grooves (14).

6. The press roll apparatus for a pellet mill as set forth in claim 3, wherein: The inner wall of the two compression roller skins (3) is provided with an inclined surface structure matched with the bottom of the clamping block (7) on one end close to each other.

7. The roller assembly for a pellet mill as described in claim 1 and wherein: The two ends of the eccentric shaft (1) and located on the outer side of the compression roller sleeve (2) are in threaded connection with compression covers (16), the compression cover (16) comprises an outer ring and an inner ring, the inner ring is in threaded connection with the eccentric shaft (1), the outer ring is in rotating connection on the outer side of the inner ring, and the outer ring is pressed on the end of the compression roller skin (3).

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