A four-shaft shredder

Abstract

The utility model relates to a shredder technical field especially discloses a four -axis shredder, including frame, is provided with tearing apart subassembly and the driving piece for controlling tearing apart subassembly working condition on the frame, tearing apart subassembly includes the first roller and the second roller rotation setting on the frame, the rotation rate of first roller and second roller is not equal, forms the non - synchronous shear field through two rollers in tearing apart process, both enhanced the tearing ability of cutter to material and tearing and through the shear friction effect of rotation speed difference optimization tore the efficiency, finally realized the efficient crushing processing to high -strength, high toughness material, reduced equipment energy consumption and cutter wear and tear simultaneously, avoided the material skidding phenomenon that synchronous rotation can cause, significantly improved the transmission efficiency of tearing torque.

Description

Technical Field

[0001] This utility model relates to the field of shredder technology, and in particular discloses a four-shaft shredder. Background Technology

[0002] With the increasing demand for industrial development and resource recycling, the crushing of various high-strength and high-toughness materials (such as waste tires, metal composites, and engineering plastics) has become a crucial link in resource recycling and reuse. Traditional shredding equipment mostly adopts a synchronously rotating double-roller or multi-roller structure, achieving material crushing through the shearing force between the blades. However, in practical applications, synchronously rotating rollers suffer from material slippage and efficiency limitations when processing high-strength materials: synchronous rotation results in a fixed blade cutting angle, making it easy for materials to slip between the rollers, reducing the efficiency of shredding torque transmission, especially for materials with complex fiber structures or high toughness. Therefore, a four-axis shredder is provided to solve the above problems. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a four-axis shredder.

[0004] To achieve the above objectives, the present invention provides a four-axis shredder, including a frame, on which a shredding assembly and a drive component for controlling the working state of the shredding assembly are mounted; the shredding assembly includes a first roller and a second roller rotatably mounted on the frame, the first roller and the second roller rotating at different speeds.

[0005] Preferably, the frame includes a first frame for supporting the shredding assembly. Both ends of the first and second rollers in the length direction are rotatably mounted on the first frame via bearings. The first frame provides stable support for the first and second rollers, and the bearings enable their reliable rotation. This achieves stable installation and flexible rotation of the shredding assembly, ensuring the stability and reliability of the equipment under high-speed operation, while reducing the frictional resistance of the roller rotation and improving the operating efficiency of the equipment.

[0006] Preferably, a first gear and a second gear are respectively provided through the first frame at the end of the first roller and the second roller near the drive member. The first gear and the second gear have different numbers of teeth. By setting the first gear and the second gear with different numbers of teeth at the ends of the first roller and the second roller, differential rotation of the two rollers is achieved, so that an asynchronous shear force field is formed during the shredding process, which enhances the shredding efficiency and the material handling capacity, and is especially suitable for the crushing of high-strength materials.

[0007] Preferably, the frame also includes a second frame, on which a third gear is rotatably mounted. The third gear meshes with the first gear and the second gear respectively. By mounting the third gear on the second frame and meshing it with the first gear and the second gear, reliable power transmission from the drive unit to the first roller and the second roller is achieved, while ensuring differential rotation and optimizing the stability and efficiency of the equipment's power transmission.

[0008] Preferably, a transmission assembly is provided on the second frame, and a drive component is provided on the second frame to drive the third gear to rotate via the transmission assembly. By providing a transmission assembly on the second frame and mounting the drive component on it, the drive component drives the third gear, optimizing the power layout of the equipment, reducing the power transmission path, and improving the overall operating efficiency and reliability of the equipment.

[0009] Preferably, the output end of the drive component faces the end of the second frame away from the first frame. By facing the output end of the drive component towards the end of the second frame away from the first frame, a compact layout of the equipment structure is achieved, reducing space occupation, facilitating maintenance and repair, and improving the practicality and maintainability of the equipment.

[0010] Preferably, the rotational speed of the first roller is lower than that of the second roller. By setting the rotational speed of the first roller to be lower than that of the second roller, a speed difference between the two rollers is achieved during the shredding process, which enhances the shredding torque and shearing effect, improves the equipment's ability to crush materials, and reduces energy consumption and tool wear.

[0011] Preferably, both the first frame and the second frame are provided with spaced strip plates. By providing spaced strip plates on the first frame and the second frame, the internal structure of the equipment is strengthened and supported, improving the overall rigidity and stability of the equipment. At the same time, the spacing between the strip plates is conducive to heat dissipation and structural stability, thus optimizing the operating environment of the equipment.

[0012] Preferably, the first frame is provided with multiple filter screens, each of which is used to accommodate a corresponding roller. The first frame is also provided with a stopper to prevent external materials from being fed in without being shredded. By setting the filter screens and the stopper on the first frame, the shredded materials are screened and the unshredded materials are prevented from being fed in directly, thus ensuring the shredding effect and product quality. At the same time, the design of the filter screens also facilitates the maintenance and replacement of the rollers.

[0013] Preferably, the shredding assembly is provided in two sets, and the distance between the two first rollers in the two sets of shredding assemblies is greater than the distance between the two second rollers. By setting two sets of shredding assemblies and making the distance between the first rollers in the two sets greater than the distance between the second rollers, graded shredding of materials is achieved. The materials are first initially shredded by rollers with a larger spacing, and then finely shredded by rollers with a smaller spacing, which improves shredding efficiency and effect, and at the same time adapts to the processing needs of materials of different sizes.

[0014] The beneficial effects of this invention are as follows: The differential rotation design of the first and second rollers creates an asynchronous shear force field during the shredding process. This enhances the gripping and tearing ability of the blades on the material, and optimizes shredding efficiency through the shear friction effect generated by the speed difference. Ultimately, this achieves efficient crushing of high-strength and high-toughness materials while reducing equipment energy consumption and blade wear. The differential rotation causes the blades of the two rollers to dynamically change their cutting angle when contacting the material, avoiding material slippage that may occur with synchronous rotation and significantly improving the transmission efficiency of shredding torque. The shear friction effect generated by the speed difference further strengthens the ability to destroy the fiber structure of the material, making it particularly suitable for processing difficult-to-crush materials such as waste tires and metal composite materials. In addition, the asynchronous operation mode can disperse the peak force on the blade assembly, extend the blade life, and reduce overall energy consumption, comprehensively improving the economy and reliability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main body structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the explosion of the main body of this utility model;

[0017] Figure 3 This is a schematic diagram of the side structure of the roller body of this utility model;

[0018] Figure 4 This is an exploded view of the roller body of this utility model;

[0019] Figure 5 This is a schematic diagram of the gear relationship of this utility model;

[0020] Figure 6 This is a side view of the filter element of this utility model;

[0021] Figure 7 This is a side view of the main body structure of this utility model.

[0022] The reference numerals in the figures include:

[0023] 1. Frame; 2. Shredding assembly; 3. Drive unit; 4. Transmission assembly; 11. First frame; 12. Second frame; 111. Stop; 112. Filter screen; 21. First roller; 22. Second roller; 23. Bearing; 24. First gear; 25. Second gear; 31. Third gear. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0025] Please see Figures 1 to 7 As shown, a four-axis shredder of this utility model includes a frame 1, a shredding assembly 2 and a drive component 3 for controlling the working state of the shredding assembly 2 are provided on the frame 1; the shredding assembly 2 includes a first roller 21 and a second roller 22 rotatably disposed on the frame 1, and the rotation speeds of the first roller 21 and the second roller 22 are not equal.

[0026] Specifically, the differential rotation design of the first roller 21 and the second roller 22 creates an asynchronous shear force field during the shredding process. This enhances the gripping and tearing ability of the blades on the material, and optimizes the shredding efficiency through the shear friction effect generated by the speed difference. Ultimately, this achieves efficient crushing of high-strength and high-toughness materials while reducing equipment energy consumption and blade wear. The differential rotation causes the blades of the two rollers to dynamically change their cutting angle when in contact with the material, avoiding material slippage that may occur with synchronous rotation and significantly improving the transmission efficiency of shredding torque. The shear friction effect generated by the speed difference further strengthens the ability to destroy the fiber structure of the material, making it particularly suitable for processing difficult-to-crush materials such as waste tires and metal composite materials. In addition, the asynchronous operation mode can disperse the peak force on the blade assembly, extend the service life of the blades, and reduce overall energy consumption, comprehensively improving the economy and reliability of the equipment.

[0027] Specifically, the blades on the first roller 21 and the second roller 22 are different. The blades on the first roller 21 are used to initially crush large pieces of material, cutting them into smaller pieces. The blades on the second roller 22 further shred the smaller pieces of material to achieve smaller size requirements.

[0028] Specifically, the frame 1 includes a first frame 11 for supporting the shredding assembly 2. The first roller 21 and the second roller 22 are rotatably mounted on the first frame 11 via bearings 23 at both ends along their length. The first frame 11 provides stable support for the first roller 21 and the second roller 22, and the bearings 23 enable their reliable rotation. This achieves stable installation and flexible rotation of the shredding assembly 2, ensuring the stability and reliability of the equipment under high-speed operation, while reducing the frictional resistance of the roller rotation and improving the operating efficiency of the equipment.

[0029] Specifically, a first gear 24 and a second gear 25 are respectively provided at the end of the first roller 21 and the second roller 22 near the drive member 3, passing through the first frame 11. The first gear 24 and the second gear 25 have different numbers of teeth. By setting the first gear 24 and the second gear 25 with different numbers of teeth at the ends of the first roller 21 and the second roller 22, differential rotation of the two rollers is achieved, so that an asynchronous shear force field is formed during the shredding process, which enhances the shredding efficiency and the material handling capacity, and is especially suitable for the crushing of high-strength materials.

[0030] Specifically, the output end of the drive unit 3 is equipped with an active roller to drive the first roller 21 and the second roller 22 to rotate at different speeds.

[0031] Specifically, the frame 1 also includes a second frame 12, on which a third gear 31 is rotatably mounted. The third gear 31 meshes with the first gear 24 and the second gear 25 respectively. By mounting the third gear 31 on the second frame 12 and meshing it with the first gear 24 and the second gear 25, reliable power transmission from the drive unit 3 to the first roller 21 and the second roller 22 is achieved, while ensuring differential rotation and optimizing the stability and efficiency of the equipment's power transmission.

[0032] Specifically, a transmission assembly 4 is provided on the second frame 12, and a drive component 3 is provided on the second frame 12 to drive the third gear 31 to rotate via the transmission assembly 4. By providing the transmission assembly 4 on the second frame 12 and installing the drive component 3 on it, the drive component 3 drives the third gear 31, optimizes the power layout of the equipment, reduces the power transmission path, and improves the overall operating efficiency and reliability of the equipment.

[0033] Specifically, transmission component 4 consists of a gear set and a conveyor belt.

[0034] Specifically, the output end of the drive unit 3 is oriented towards the end of the second frame 12 away from the first frame 11. By oriented the output end of the drive unit 3 towards the end of the second frame 12 away from the first frame 11, a compact layout of the equipment structure is achieved, reducing space occupation, while facilitating maintenance and repair, and improving the practicality and maintainability of the equipment.

[0035] Specifically, the rotational speed of the first roller 21 is less than that of the second roller 22. By setting the rotational speed of the first roller 21 to be less than that of the second roller 22, the speed difference between the two rollers during the shredding process is achieved, which enhances the shredding torque and shearing effect, improves the equipment's ability to crush materials, and reduces energy consumption and tool wear.

[0036] Specifically, both the first frame 11 and the second frame 12 are equipped with spaced strip plates. By setting spaced strip plates on the first frame 11 and the second frame 12, the internal structure of the equipment is strengthened and supported, improving the overall rigidity and stability of the equipment. At the same time, the spacing between the strip plates is conducive to heat dissipation and structural stability, thus optimizing the operating environment of the equipment.

[0037] Specifically, the strip plate is made of thermally conductive material, and in the second embodiment, the strip plate is arranged in a wavy shape to increase the heat dissipation area.

[0038] Specifically, the roller has a shaft portion and multiple shredding discs disposed on the shaft portion. The multiple shredding discs are arranged along the length direction of the shaft portion. Each shredding disc has a disc portion disposed on the shaft portion and multiple shredding heads disposed on the disc portion. The shredding discs of the two rollers are staggered. All shredding heads of the same roller are arranged along the length direction of the roller and around the central axis of the roller. Each shredding head has a constricted neck connected to the disc portion and a cutting edge portion disposed at the end of the constricted neck away from the disc portion. The cutting edge portion has a shredding tip protruding from the constricted neck.

[0039] Specifically, the first frame 11 is provided with multiple filter screens 112, each of which is used to accommodate a corresponding roller. The first frame 11 is also provided with a stop 111, which is used to prevent external materials from being fed without being shredded. The stop 111 and the multiple filter screens 112 form a receiving box for accommodating the roller. The filter screens 112 are located below the roller. By setting the filter screens 112 and the stop 111 on the first frame 11, the shredded materials are screened and the unshredded materials are prevented from being fed directly, ensuring the shredding effect and product quality. At the same time, the design of the filter screens 112 also facilitates the maintenance and replacement of the roller.

[0040] Specifically, multiple filter elements 112 are integrally formed and are bolted to the first frame 11.

[0041] Specifically, the shredding assembly 2 is provided in two sets. The distance between the two first rollers 21 in the two sets of shredding assemblies 2 is greater than the distance between the two second rollers 22. The two second rollers 22 are located between the two first rollers 21. By setting two sets of shredding assemblies 2 and making the distance between the first rollers 21 in the two sets greater than the distance between the second rollers 22, graded shredding of materials is achieved. The materials are first initially shredded by rollers with a larger spacing, and then finely shredded by rollers with a smaller spacing, which improves shredding efficiency and effect, and at the same time adapts to the processing needs of materials of different sizes.

[0042] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A four-shaft shredder, comprising a frame (1), a shredding assembly (2) disposed on the frame (1), and a drive component (3) for controlling the working state of the shredding assembly (2); characterized in that: The shredding assembly (2) includes a first roller (21) and a second roller (22) rotatably mounted on a frame (1), the first roller (21) and the second roller (22) rotating at different speeds.

2. A four-shaft shredder according to claim 1, characterized in that: The frame (1) includes a first frame (11) for supporting the shredding assembly (2), and the first roller (21) and the second roller (22) are rotatably mounted on the first frame (11) via bearings (23) at both ends in the length direction.

3. A four-shaft shredder according to claim 2, characterized in that: The first roller (21) and the second roller (22) are respectively provided with a first gear (24) and a second gear (25) through the first frame (11) at the end of the first roller (21) and the second roller (22) near the drive member (3). The number of teeth of the first gear (24) and the second gear (25) are not equal.

4. A four-shaft shredder according to claim 3, characterized in that: The frame (1) also includes a second frame (12), on which a third gear (31) is rotatably mounted, and the third gear (31) meshes with the first gear (24) and the second gear (25) respectively.

5. A four-shaft shredder according to claim 4, characterized in that: The second frame (12) is provided with a transmission assembly (4), and the drive unit (3) is provided on the second frame (12) to drive the third gear (31) to rotate via the transmission assembly (4).

6. A four-shaft shredder according to claim 4, characterized in that: The output end of the drive unit (3) is directed toward the end of the second frame (12) away from the first frame (11).

7. A four-shaft shredder according to claim 1, characterized in that: The rotational speed of the first roller (21) is less than the rotational speed of the second roller (22).

8. A four-shaft shredder according to claim 1, characterized in that: The roller has a shaft portion and multiple shredding discs disposed on the shaft portion. The multiple shredding discs are arranged along the length direction of the shaft portion. Each shredding disc has a disc portion disposed on the shaft portion and multiple shredding heads disposed on the disc portion. The shredding discs of two rollers are staggered. All shredding heads of the same roller are arranged along the length direction of the roller and around the central axis of the roller. Each shredding head has a constricted neck connected to the disc portion and a cutting edge portion disposed at the end of the constricted neck away from the disc portion. The cutting edge portion has a shredding tip protruding from the constricted neck.

9. A four-shaft shredder according to claim 1, characterized in that: The first frame (11) is provided with multiple filter screens (112), each of which is used to accommodate a corresponding roller. The first frame (11) is also provided with a stop (111), which is used to prevent external materials from being fed without being shredded. The stop (111) and the multiple filter screens (112) form a receiving box for accommodating the roller. The filter screens (112) are located below the roller.

10. A four-shaft shredder according to claim 1, characterized in that: The shredding assembly (2) is provided in two sets. The distance between the two first rollers (21) in the two sets of shredding assemblies (2) is greater than the distance between the two second rollers (22). The two second rollers (22) are located between the two first rollers (21).

Images