Knife roll of crusher

Abstract

The knife roll comprises a knife shaft, spacer bushes and disc knives, the multiple spacer bushes are arranged on the knife shaft in a sleeved mode, first limiting grooves are formed in the side wall of the knife shaft, first limiting blocks clamped in the first limiting grooves are arranged on the inner walls of the spacer bushes, the spacer bushes are hollow sleeves with steps, through holes are formed in the centers of the disc knives, and the disc knives are arranged at the small-diameter ends of the spacer bushes in a sleeved mode. A second limiting block is arranged on the outer wall of the end, with the smaller diameter, of the spacer bush, a plurality of cutter teeth are annularly and evenly arranged on the outer wall of the disc cutter with the center axis of the disc cutter as the center, and at least two sets of second limiting grooves matched with the second limiting block are formed in the inner wall of the through hole. The cutter teeth can be adjusted to be arranged in parallel or in an oblique line mode, so that the cutter roller can be switched back and forth between the parallel teeth and the crossed teeth, the cutter roller meets the requirements of different scenes, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a crusher cutter roller. Background Technology

[0002] Biomass, as a fuel, has high combustion efficiency. Currently, in the production of biomass fuel, it is necessary to crush the biomass before pelleting. The existing crusher cutter rollers have two common tooth shape designs: parallel teeth and cross teeth. Parallel teeth have parallel teeth, while cross teeth have oblique teeth. They have significant differences in material crushing efficiency, particle size distribution, wear resistance, and applicable scenarios. However, the existing crusher cutter rollers cannot switch between parallel teeth and cross teeth, thus limiting their applicability. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a crusher cutter roller to solve the technical problem that the existing crusher cutter rollers cannot switch between parallel teeth and cross teeth, thus limiting their applicability.

[0004] To achieve the above technical objectives, the present invention provides a cutter roller for a crusher, comprising a cutter shaft, spacers, and a disc cutter. Multiple spacers are fitted onto the cutter shaft, and a first limiting groove is provided on the side wall of the cutter shaft. A first limiting block, which is engaged within the first limiting groove, is provided on the inner wall of the spacer. The spacer is a hollow sleeve with steps. A through hole is provided at the center of the disc cutter and is fitted onto the end of the spacer with a smaller diameter. A second limiting block is provided on the outer wall of the end of the spacer with a smaller diameter. Multiple cutter teeth are evenly arranged in a ring around the central axis of the disc cutter on the outer wall. At least two sets of second limiting grooves, which cooperate with the second limiting block, are provided on the inner wall of the through hole. By adjusting the cooperation between the second limiting block and the second limiting groove, the cutter teeth can be adjusted to be arranged in parallel or obliquely.

[0005] Furthermore, the second limiting groove includes two sets, one set of limiting grooves is set on the inner wall of the through hole and is positioned opposite to the cutting teeth, and the other set of limiting grooves is set on the inner wall of the through hole and is positioned between two adjacent cutting teeth.

[0006] Furthermore, the first limiting groove is a strip-shaped groove arranged along the central axis of the cutter shaft, and both ends are open structures.

[0007] Furthermore, the second limiting groove is a strip-shaped groove arranged along the central axis of the disc cutter, and both ends are open structures.

[0008] Furthermore, the number of second limiting blocks is equal to the number of second limiting slots.

[0009] Furthermore, both ends of the cutter shaft are threaded with lock nuts.

[0010] The beneficial effects of this utility model include: This utility model provides a cutter roller for a crusher. By adjusting the cooperation between the second limiting block and the second limiting groove, the cutter teeth can be adjusted to be arranged in parallel or in an oblique line, so that the cutter roller can switch back and forth between parallel teeth and cross teeth, so that the cutter roller can meet the needs of different scenarios and therefore has a wide range of applications. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the parallel tooth structure of the cutter roller of the crusher according to an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the cross-tooth structure of the cutter roller of the crusher according to an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the cutter shaft structure according to an embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram of the spacer structure according to an embodiment of the present utility model;

[0015] Figure 5 This is a schematic diagram of the disc cutter structure according to an embodiment of the present utility model;

[0016] In the figure: 1. Cutter shaft; 11. First limiting groove; 2. Spacer; 21. First limiting block; 22. Second limiting block; 3. Disc cutter; 31. Through hole; 32. Cutter tooth; 33. Second limiting groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] This utility model embodiment provides a cutter roller for a crusher, such as... Figure 1-5As shown, the device includes a cutter shaft 1, spacers 2, and a disc cutter 3. Multiple spacers 2 are fitted onto the cutter shaft 1. A first limiting groove 11 is provided on the side wall of the cutter shaft 1. A first limiting block 21, which is engaged within the first limiting groove 11, is provided on the inner wall of each spacer 2. The first limiting block 21 is integrally formed with the spacer 2. The spacer 2 is a hollow sleeve with steps, therefore the outer diameters at both ends of the spacer 2 are unequal. The disc cutter 3 has a through hole 31 in its center and is fitted onto the smaller diameter end of the spacer 2. Simultaneously, the length of the smaller diameter end of the spacer 2 is equal to the width of the disc cutter 3. A second limiting block 22 is provided on the outer wall of the smaller diameter end of the spacer 2. The second limiting block 22 is integrally formed with the spacer 2. The outer wall of the disc cutter 3 is provided with a plurality of uniformly arranged cutting teeth 32 in a ring around the central axis of the disc cutter 3. The inner wall of the through hole 31 is provided with at least two sets of second limiting grooves 33 that cooperate with the second limiting block 22. The number of second limiting grooves 33 is equal to the number of second limiting blocks 22. By adjusting the cooperation mode between the second limiting block 22 and the second limiting grooves 33, the cutting teeth 32 can be adjusted to be arranged in parallel or in a diagonal line, so that the cutter roller can switch back and forth between parallel teeth and cross teeth, so that the cutter roller can meet the needs of different scenarios and therefore has a wide range of applications.

[0019] It should be noted that the second limiting groove 33 includes two sets. One set of limiting grooves 33 is set on the inner wall of the through hole 31 and is positioned opposite to the cutting teeth 32. The other set of limiting grooves 33 is set on the inner wall of the through hole 31 and is positioned between two adjacent cutting teeth 32. The first limiting groove 11 is a strip-shaped groove set along the central axis of the cutting shaft 1, and both ends are open. The spacer 2 can be inserted into the cutting shaft 1 from both ends, which is convenient for operation. The second limiting groove 33 is a strip-shaped groove set along the central axis of the disc cutter 3, and both ends are open. The spacer 2 can be inserted into the through hole 31 of the disc cutter 3 from both sides, which is convenient for operation.

[0020] In this embodiment, both ends of the cutter shaft 1 are threaded with locking nuts 4. The spacer 2 can be locked and fixed on the cutter shaft 1 by locking nuts 4, so the cutter roller can be easily disassembled and assembled, and the cutter roller can be easily switched back and forth between parallel teeth and cross teeth.

[0021] Specific principle: During installation, the disc cutter 3 is fitted onto the spacer 2, and the second limiting block 22 is engaged inside the second limiting groove 33. After the disc cutter 3 is fitted onto the spacer 2, the spacer 2 is fitted onto the cutter shaft 1, and the first limiting block 21 is engaged inside the first limiting groove 11. After the spacer 2 is fitted onto the cutter shaft 1, another disc cutter 3 is fitted onto another spacer 2. At the same time, by fitting the same second limiting block 22 on the other spacer 2 into different sets of second limiting grooves 33, the cutter roller can switch between parallel teeth and cross teeth. After another disc cutter 3 is fitted onto another spacer 2, the other spacer 2 is fitted onto the cutter shaft 1, and the first limiting block 21 is engaged inside the first limiting groove 11. The installation of the disc cutter 3 and the spacer 2 is completed in sequence. After installation, the spacer 2 is locked and fixed onto the cutter shaft 1 by the locking nut 4.

[0022] The crusher's cutter roller of this utility model embodiment can adjust the cutter teeth 32 to be arranged in parallel or diagonally by adjusting the cooperation between the second limiting block 22 and the second limiting groove 33. This allows the cutter roller to switch back and forth between parallel teeth and cross teeth, so that the cutter roller can meet the needs of different scenarios and has a wide range of applications.

[0023] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A knife roll of a shredder, characterized in that, The device includes a cutter shaft (1), a spacer sleeve (2), and a disc cutter (3). The cutter shaft (1) is fitted with multiple spacers (2). The side wall of the cutter shaft (1) is provided with a first limiting groove (11). The inner wall of the spacer sleeve (2) is provided with a first limiting block (21) that is locked inside the first limiting groove (11). The spacer sleeve (2) is a hollow sleeve with a step. The disc cutter (3) is provided with a through hole (31) in the center and is fitted on the end of the spacer sleeve (2) with a smaller diameter. The outer wall of the end of the spacer sleeve (2) with a smaller diameter is provided with a second limiting block (22). The outer wall of the disc cutter (3) is provided with multiple cutter teeth (32) in a ring around the central axis of the disc cutter (3). The inner wall of the through hole (31) is provided with at least two sets of second limiting grooves (33) that cooperate with the second limiting block (22). By adjusting the cooperation between the second limiting block (22) and the second limiting groove (33), the cutter teeth (32) can be adjusted to be arranged in parallel or in a diagonal arrangement.

2. The cutter roll of a shredder according to claim 1, characterized in that The second limiting groove (33) includes two sets. One set of the limiting groove (33) is located on the inner wall of the through hole (31) and opposite to the cutting teeth (32). The other set of the limiting groove (33) is located on the inner wall of the through hole (31) and between two adjacent cutting teeth (32).

3. The cutter roll of claim 1, wherein, The first limiting groove (11) is a strip-shaped groove arranged along the central axis of the cutter shaft (1), and both ends are open structures.

4. The cutter roll of claim 1, wherein, The second limiting groove (33) is a strip-shaped groove set along the central axis of the disc cutter (3), and both ends are open structures.

5. The cutter roll of claim 1 wherein, The number of the second limiting blocks (22) is equal to the number of the second limiting slots (33).

6. The cutter roll of claim 1 wherein, Both ends of the cutter shaft (1) are threaded with locking nuts (4).

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