Knife roll structure of double-shaft shredder

Abstract

The utility model discloses a knife roll structure of a double-shaft shredding machine in the related technical field of shredding machines, which comprises a shredding machine roll shaft and a knife disc main body, a fixed positioning end plate is fixedly arranged at one end of the shredding machine roll shaft, and a knife disc mounting shaft section is arranged in the middle of the shredding machine roll shaft. The roll shaft of the shredder and the cutter head main body are of a split type structural design, the cutter head main body can be singly disassembled, assembled and replaced, the maintenance cost is effectively reduced, the positioning matching keys are spirally arranged on the cutter head mounting shaft section of the roll shaft of the shredder in the circumferential direction at equal angle intervals, and the cutter head mounting shaft section of the roll shaft of the shredder is convenient to assemble and disassemble. According to the guide roller of the shredding machine, the shredding blades on the cutter head body can be arranged at equal angle intervals, the whole guide roller of the shredding machine has a good use effect, the blade installation limiting table is arranged at one end of the blade installation groove of the cutter head body, the body structure of the cutter head body is used for replacing a split type tool apron, the impact resistance and the structural strength can be effectively improved, and the service life of the guide roller is prolonged. And the mounting stability of the shredding blades is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to shredders, and specifically relates to a knife roller structure of a double-shaft shredder. Background Art

[0002] A shredder is a machine used for coarse crushing, generally used to process unprocessed raw materials or scraps, and to recycle and regenerate them to make them smaller in size. Compared with other crushers, the cutter shaft has a low rotation speed, low noise, and low energy consumption. Patent No.: CN202321199557.3 discloses a single-axis shredder knife roller structure, and the cutter shaft body is provided with a plurality of evenly distributed sunken recessed positions around the surface, and each sunken recessed position is composed of two inner inclined end faces, and the two inner inclined end faces are V-shaped; each of the sunken recessed positions is provided with a square knife seat, and the square knife seat is embedded in the sunken recessed position, and the front and rear ends of the square knife seat are respectively arranged on the first mounting surface and the second mounting surface for installing the cutter, and the first mounting surface and the second mounting surface are provided with a tool fixing hole for installing the cutter. In order to prevent the damage to the machine caused by the knife seat falling, the knife seat is designed to be made into a square seat, which is directly sunk into the knife shaft and then welded to fix it. The force of the knife seat is directly transmitted to the knife shaft instead of the weld. The installation method of the square knife seat embedded in the sunken recessed position solves the problem that the knife seat is easy to fall. Although the knife roller structure has a certain effect, the knife roller structure is an integrated structure design. When the knife roller is damaged and affects its use, the knife roller structure needs to be replaced as a whole, which is costly. In addition, the square knife seat and the guide roller are split structures, and the installation and support stability are poor.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a double-shaft shredder knife roller structure. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] A double-shaft shredder knife roller structure comprises a shredder roller shaft and a knife disc body, wherein a fixed positioning end plate is fixedly arranged at one end of the shredder roller shaft, a knife disc mounting shaft section is arranged at the middle position of the shredder roller shaft, the knife disc body is mounted on the knife disc mounting shaft section, the outer side of the knife disc mounting shaft section is spirally and equiangularly spaced along the circumferential direction, a keyway is arranged in the center hole of the knife disc body, a movable limiting plate is arranged at one end of the knife disc mounting shaft section away from the fixed positioning end plate, a fixed mounting hole is opened on the movable limiting plate, a fixing bolt is arranged in the fixed mounting hole, and the fixing bolt is used for fixing the movable limiting plate and the shredder roller shaft.

[0006] As a further solution of the utility model: the fixed installation hole is a countersunk structure, a blade installation groove is opened on the outer diameter of the cutter disc body, and a blade installation limit platform is formed on one end of the blade installation groove on the cutter disc body to facilitate assembly and limitation.

[0007] As a further solution of the utility model: a shredding blade is installed in the blade installation groove, one side of the shredding blade is in contact with the blade installation limit platform in the blade installation groove, and the shredding blade is fixedly installed on the cutter disc body by a double screw structure, and the installation stability is good.

[0008] As a further solution of the utility model: three groups of shredding blades are evenly arranged on each of the cutter disc bodies along the circumferential direction, a plurality of the cutter disc bodies are installed on the shredder roller shaft, and the shredding blades on adjacent cutter disc bodies are staggered along the circumferential direction, so that the shredder guide roller as a whole has a good shredding processing effect.

[0009] As a further solution of the utility model: the positioning and matching key is fixed to the shredder roller shaft by welding, and the positioning and matching stability is good.

[0010] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0011] The shredder roller shaft and the cutter disc body of the utility model are of split structure design, and the cutter disc body can be disassembled, assembled and replaced individually, which effectively reduces the maintenance cost. The cutter disc installation shaft section of the shredder roller shaft is spirally and evenly spaced along the circumferential direction with positioning matching keys, so that the shredding blades on the cutter disc body can be arranged at even angles, so that the shredder guide roller as a whole has a good use effect.

[0012] A blade installation limit platform is provided at one end of the blade installation groove of the cutter disc body of the utility model, and the split blade seat is replaced by the main structure of the cutter disc body, which can effectively improve the impact resistance and structural strength and enhance the installation stability of the shredding blade.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is the front view of the utility model;

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

[0018] Figure 4 It is a schematic diagram of the movable limiting plate of the utility model;

[0019] Figure 5 It is a schematic diagram of the arrangement of the roller shaft positioning matching keys of the utility model.

[0020] In the figure: 1. shredder roller; 2. fixed positioning end plate; 3. cutter disc body; 4. movable limit plate; 5. fixed mounting hole; 6. fixing bolt; 7. cutter disc mounting shaft section; 8. positioning mating key; 9. blade mounting slot; 10. shredder blade.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] like Figures 1 to 5 As shown, the double-shaft shredder knife roller structure includes a shredder roller shaft 1 and a knife disc body 3. A fixed positioning end plate 2 is fixedly provided at one end of the shredder roller shaft 1, a knife disc mounting shaft section 7 is provided at the middle position of the shredder roller shaft 1, the knife disc body 3 is installed on the knife disc mounting shaft section 7, and the outer side of the knife disc mounting shaft section 7 is spirally and equiangularly spaced along the circumferential direction. Positioning matching keys 8 are provided, and a keyway is provided in the center hole of the knife disc body 3. A movable limiting plate 4 is provided at one end of the knife disc mounting shaft section 7 away from the fixed positioning end plate 2, and a fixed mounting hole 5 is opened on the movable limiting plate 4. A fixing bolt 6 is arranged in the fixed mounting hole 5, and the fixing bolt 6 is used for fixed installation between the movable limiting plate 4 and the shredder roller shaft 1.

[0024] Among them, the fixed installation hole 5 is a countersunk structure, and a blade installation groove 9 is opened on the outer diameter of the cutter disc body 3. A blade installation limit platform is formed on one end of the blade installation groove 9 on the cutter disc body 3 to facilitate assembly and limiting.

[0025] A shredding blade 10 is installed in the blade installation groove 9, one side of the shredding blade 10 is fitted with the blade installation limit platform in the blade installation groove 9, and the shredding blade 10 is fixedly installed on the cutter disc body 3 by a double screw structure, and the installation stability is good.

[0026] Three groups of shredding blades 10 are evenly arranged on each cutter disc body 3 along the circumferential direction. A plurality of cutter disc bodies 3 are installed on the shredder roller shaft 1. The shredding blades 10 on adjacent cutter disc bodies 3 are staggered along the circumferential direction, so that the shredder guide roller as a whole has a good shredding processing effect.

[0027] The positioning key 8 is fixed to the shredder roller shaft 1 by welding, and the positioning stability is good.

[0028] The working principle of the utility model is as follows: when assembling the guide roller of the shredder, the cutter disc main body 3 is sequentially sleeved on the cutter disc installation shaft section 7 installed on the shredder roller shaft 1 from one end of the movable limit plate 4, and it is noted that the keyway in the middle through hole of the cutter disc main body 3 is matched with the corresponding positioning matching key 8. Since the positioning matching key 8 is arranged on the cutter disc installation shaft section 7 in a spiral manner and at equal angles along the circumferential direction, the shredding blades 10 on the adjacent cutter disc main bodies 3 form a staggered structure in the circumferential direction. After the cutter disc main body 3 is installed, the movable limit plate 4 is fixedly installed by the fixing bolt 6, and the axial direction of the cutter disc main body 3 is limited to complete the matching installation of the shredder roller shaft 1 and the cutter disc main body 3; when an individual cutter disc main body 3 is damaged and affects normal use, the corresponding cutter disc main body 3 can be removed for replacement or repair;

[0029] The novel structure of the present invention is reasonably designed and easy to install and use. The shredder roller shaft 1 and the cutter disc body 3 are of split structural design, and the cutter disc body 3 can be individually disassembled, assembled and replaced, which effectively reduces the maintenance cost. The cutter disc mounting shaft section 7 of the shredder roller shaft 1 is spirally and evenly spaced along the circumferential direction with positioning matching keys 8, so that the shredding blades 10 on the cutter disc body 3 can be arranged at equal angles, so that the shredder guide roller as a whole has a good use effect. A blade mounting limit platform is provided at one end of the blade mounting groove 9 of the cutter disc body 3, and the split knife seat is replaced by the main structure of the cutter disc body 3, which can effectively improve the impact resistance and structural strength, and enhance the installation stability of the shredding blade 10.

[0030] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A double-shaft shredder blade roller structure, comprising a shredder roller shaft (1) and a blade disc body (3), characterized in that: A fixed positioning end plate (2) is fixedly provided at one end of the shredder roller shaft (1), a cutter disc mounting shaft section (7) is provided at the middle position of the shredder roller shaft (1), the cutter disc main body (3) is mounted on the cutter disc mounting shaft section (7), the outer side of the cutter disc mounting shaft section (7) is spirally provided with positioning matching keys (8) at equal angular intervals along the circumferential direction, a keyway is provided in the center hole of the cutter disc main body (3), a movable limit plate (4) is provided at one end of the cutter disc mounting shaft section (7) away from the fixed positioning end plate (2), a fixed mounting hole (5) is provided on the movable limit plate (4), and a fixing bolt (6) is arranged in the fixed mounting hole (5).

2. The double-shaft shredder blade roller structure according to claim 1, characterized in that: The fixed installation hole (5) is a countersunk hole structure, a blade installation groove (9) is provided on the outer diameter of the cutter disc body (3), and a blade installation limit platform is formed on one end of the cutter disc body (3).

3. The double-shaft shredder blade roller structure according to claim 2, characterized in that: A shredding blade (10) is installed in the blade installation groove (9), and one side of the shredding blade (10) is in contact with a blade installation limit platform in the blade installation groove (9).

4. The double-shaft shredder blade roller structure according to claim 3, characterized in that: Three groups of shredding blades (10) are evenly arranged on each of the cutter disc bodies (3) in a circumferential direction, a plurality of the cutter disc bodies (3) are mounted on the shredder roller (1), and the shredding blades (10) on adjacent cutter disc bodies (3) are staggered in a circumferential direction.

5. The double-shaft shredder blade roller structure according to claim 4, characterized in that: The positioning key (8) and the shredder roller shaft (1) are fixed by welding.

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