Knife roll structure of crusher

Abstract

The utility model discloses a knife roll structure of a crusher. The knife roll structure comprises a main shaft, a roller and a plurality of moving knives, the roller is rotatably arranged on the main shaft in a penetrating manner, and the movable cutters are arranged on the roller at intervals; each moving cutter is divided into a plurality of moving cutter groups, each moving cutter group comprises at least one moving cutter, each moving cutter comprises a cutter body radially protruding out of the outer wall of the roller, and at least one protruding cutter tooth is arranged on the side wall of the outer end, away from the roller, of each cutter body; the moving cutter sets are distributed at intervals in the axial direction of the roller, and the moving cutters of the adjacent moving cutter sets are distributed at intervals in the circumferential direction of the roller. After the main shaft of the knife roll structure is arranged on the crusher, the main shaft rotates to drive the roller to rotate, each movable knife of the roller is provided with the knife teeth, the knife teeth can better pierce and shred a packaging bag of kitchen garbage along with the circumferential rotation of the movable knives, and the adjacent movable knives are spaced in the circumferential direction and the axial direction so as to crush the packaging bag in multiple directions and multiple angles. The bag breaking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage treatment, in particular to a cutter roller structure of a crusher. Background Art

[0002] With the continuous development of China's social economy and people's lives, and the continuous advancement of domestic waste classification work across the country, the demand for rapid treatment technologies for domestic food waste has been increasing, and the problem of domestic waste treatment has become increasingly prominent. Food waste is mainly the waste generated during the process of residents' lives. Its composition is complex and mainly includes food residues such as vegetables, rice, flour, fish, meat, and bones. Food waste is rich in organic matter, has a high moisture content, is prone to decay and deterioration, and will produce a strong smell. When residents discard food waste, they generally use garbage bags to seal it and then throw it into the trash can.

[0003] When a garbage treatment plant treats food waste, it is necessary to perform front-end pretreatment on the food waste and use a crusher to shred the garbage bags of the food waste. The cutter roller structure of the existing crusher generally has paired roller shafts in cooperation, and teeth that can mesh with each other are formed on the outer walls of the two rollers. This cutter roller structure has a poor bag-breaking effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cutter roller structure of a crusher, which has the advantage of a good bag-breaking effect.

[0005] In order to achieve the above object, the solution of the utility model is:

[0006] A cutter roller structure of a crusher includes a main shaft, a roller, and a plurality of moving knives;

[0007] The roller is rotatably sleeved on the main shaft, and the moving knives are arranged on the roller at intervals;

[0008] Each moving knife is divided into a plurality of moving knife groups, each moving knife group includes at least one moving knife, the moving knife includes a knife body that protrudes radially from the outer wall of the roller, and at least one protruding knife tooth is provided on the outer end side wall of the knife body away from the roller;

[0009] Each moving knife group is distributed at intervals along the axial direction of the roller, and the moving knives of adjacent moving knife groups are distributed at intervals in the circumferential direction of the roller.

[0010] Further, each moving knife group includes more than two moving knives, and the moving knives in the moving knife group are evenly distributed at intervals in the circumferential direction; the moving knives of adjacent moving knife groups are staggered in the circumferential direction.

[0011] Further, the moving knife group includes three moving knives, and the three moving knives in the moving knife group are distributed at intervals of 120° in the circumferential direction; the adjacent moving knife groups are spaced 40° in the circumferential direction.

[0012] Further, there are more than two cutter teeth provided on the cutter body, and each cutter tooth is distributed along the radial direction of the drum. The radially adjacent cutter teeth are respectively welded to the front and rear side walls of the cutter body along the axial direction of the drum.

[0013] Further, the cutter teeth directions of each moving cutter are the same and all face the circumferential direction of the drum.

[0014] Further, the cutter tooth material is made of high-strength and corrosion-resistant material.

[0015] Further, the drum includes a drum main body and two end plates; the drum main body is in a hollow cylindrical shape, and annular ribs protruding radially outward are respectively provided on the outer walls at both ends of the drum main body; the two end plates are respectively fixedly connected to the openings at both ends of the drum main body; a through hole is provided in the middle of the end plate, the main shaft passes through the through hole of the end plate, and is fixed to the middle of the end plate through an expansion coupling sleeve. A sealing moving ring is also provided on the outside of the expansion coupling sleeve.

[0016] Further, the middle of the end plate has a connecting boss, the middle of the connecting boss is an installation groove, the installation groove communicates with the through hole of the end plate in the middle, and an annular retaining wall is formed on the inner side of the installation groove around the through hole of the end plate; the expansion coupling sleeve is sleeved on the main shaft and installed in the installation groove, and is limited inward by the annular retaining wall; the sealing moving ring is attached to the outside of the connecting boss away from the center of the drum, and a perforation is provided in the middle of the sealing moving ring for the main shaft to pass through. An outer sealing ring is provided between the perforation and the main shaft; the periphery of the sealing moving ring is locked and fixed to the connecting boss through a plurality of screws, and an inner sealing ring is provided between the inner periphery of the sealing moving ring and the connecting boss.

[0017] Further, the outer sealing ring is a lip-shaped sealing ring; the inner sealing ring is an O-shaped sealing ring.

[0018] After adopting the above technical solution, after installing the main shaft of the cutter roller structure on the crusher, the main shaft rotates to drive the drum to rotate. Each moving cutter of the drum has cutter teeth, and the cutter teeth can better puncture and tear the packaging bags of kitchen waste as they rotate circumferentially with the moving cutter. The adjacent moving cutters are spaced apart both circumferentially and axially, so as to break the packaging bags from multiple directions and angles, improving the bag-breaking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of an embodiment of the present invention;

[0020] Figure 2 is another perspective view of an embodiment of the present invention;

[0021] Figure 3 is a left view of an embodiment of the present invention;

[0022] Figure 4 is a right view of an embodiment of the present invention;

[0023] Figure 5 Cross-sectional view of an embodiment of the present utility model;

[0024] Figure 6 Exploded view of an embodiment of the present utility model.

[0025] Label description: main shaft 1, drum 2, drum body 21, rib 211, end plate 22, end plate through-hole 221, connecting boss 222, installation groove 223, annular retaining wall 224, moving knife 3, knife body 31, cutter teeth 32, expansion coupling sleeve 4, sealing moving ring 5, perforation 51, outer sealing ring 6, screw 7, inner sealing ring 8. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0027] As Figures 1 to 6 shown, a cutter roller structure of a crusher includes a main shaft 1, a drum 2 and a plurality of moving knives 3;

[0028] The drum 2 is rotatably sleeved on the main shaft 1, and the moving knives 3 are arranged on the drum 2 at intervals;

[0029] Each moving knife 3 is divided into a plurality of moving knife groups A, and each moving knife group A includes at least one moving knife 3. The moving knife 3 includes a knife body 31 that protrudes radially from the outer wall of the drum 2, and at least one protruding cutter tooth 32 is provided on the outer end side wall of the knife body 31 away from the drum 2;

[0030] The moving knife groups A are distributed at intervals along the axial direction of the drum 2, and the moving knives 3 of adjacent moving knife groups A are distributed at intervals in the circumferential direction of the drum 2.

[0031] Thereby, after the main shaft 1 of the cutter roller structure is installed on the crusher, the main shaft 1 rotates to drive the drum 2 to rotate. Each moving knife 3 of the drum 2 has cutter teeth 32, and the cutter teeth 32 can better puncture and tear the packaging bags of kitchen waste as the moving knives 3 rotate circumferentially. The adjacent moving knives 3 are spaced apart both circumferentially and axially, so as to break the packaging bags from multiple directions and angles, improving the bag-breaking effect.

[0032] Each moving knife group A can include more than two moving knives 3, and the moving knives 3 within the moving knife group A are evenly distributed at intervals circumferentially; the moving knives 3 of adjacent moving knife groups A are staggered in the circumferential direction.

[0033] Specifically, referring to Figure 3 and Figure 4, in this embodiment, there are fifteen moving knives 3, and there are five groups of moving knife groups A evenly spaced axially on the outer wall of the drum 2. Each moving knife group A includes three moving knives 3, and the three moving knives 3 in the moving knife group A are circumferentially spaced 120°. And the adjacent moving knife groups A are circumferentially spaced 40°.

[0034] At the same time, two or more cutting teeth 32 can be provided on the knife body 31. In this embodiment, each knife body 31 is provided with three cutting teeth 32. The cutting teeth 32 are distributed along the radial direction of the drum 2, and the radially adjacent cutting teeth 32 are respectively welded to the front and rear side walls of the knife body 31 along the axial direction of the drum 2. At the same time, the directions of the cutting teeth 32 of each moving knife 3 are the same, all facing the circumferential direction of the drum 2; the cutting teeth 32 can be welded and fixed on the knife body 31, and the part of the cutting teeth 32 protruding from the knife body 31 can be triangular. The material of the cutting teeth 32 can be made of high-strength and corrosion-resistant materials, which is suitable for the acidic environment of kitchen waste.

[0035] Thereby, the cutting teeth 32 are spaced from each other, and can independently puncture multiple places of the packaging bag, which is convenient for subsequent shredding and crushing.

[0036] Refer to again Figure 5 and Figure 6 As shown, in this embodiment, the drum 2 includes a drum main body 21 and two end plates 22; the drum main body 21 is in a hollow cylindrical shape, and annular flanges 211 protruding radially outward are respectively provided on the outer walls at both ends of the drum main body 21; the two sides of each moving knife 3 of the drum main body 21 can be shielded and protected.

[0037] The two end plates 22 are respectively fixedly connected to the openings at both ends of the drum main body 21; a through hole 221 is provided in the middle of the end plate 22, the main shaft 1 passes through the through hole 221 of the end plate 22, and is fixed to the middle of the end plate 22 through an expansion coupling sleeve 4. A sealing dynamic ring 5 is also provided outside the expansion coupling sleeve 4, and the sealing dynamic ring 5 shields and limits the expansion coupling sleeve 4.

[0038] Specifically, the middle of the end plate 22 can have a connecting boss 222. The middle of the connecting boss 222 is an installation groove 223. The middle of the installation groove 223 communicates with the through hole 221 of the end plate 22. An annular retaining wall 224 is formed on the inner side of the installation groove 223 around the through hole 221 of the end plate 22; the expansion coupling sleeve 4 is sleeved outside the main shaft 1 and installed in the installation groove 223, and is inwardly limited by the annular retaining wall 224; the sealing dynamic ring 5 is attached to the outer side of the connecting boss 222 away from the center of the drum 2. A through hole 51 for the main shaft 1 to pass through is provided in the middle of the sealing dynamic ring 5, and an outer sealing ring 6 is provided between the through hole 51 and the main shaft 1; the periphery of the sealing dynamic ring 5 is locked and fixed to the connecting boss 222 through a plurality of screws 7, and an inner sealing ring 8 is provided between the inner periphery of the sealing dynamic ring 5 and the connecting boss 222. The outer sealing ring 6 is a lip-shaped sealing ring; the inner sealing ring 8 is an O-shaped sealing ring to improve the sealing effect.

[0039] As a result, stable waterproof and sealed connections can be achieved between both ends of the main shaft 1 and both ends of the drum 2, enabling the main shaft 1 to smoothly drive the drum 2 to rotate and ensuring stable crushing of the drum 2 and the moving knife 3 for the waste materials.

[0040] In summary, the drum 2 of the present utility model is provided with a number of moving knives 3 distributed in a staggered manner, and each moving knife 3 is provided with knife teeth 32 distributed in a staggered manner, resulting in good crushing effect of the moving knives 3 on the packaging bags. Moreover, the main shaft 1 and the drum 2 of this embodiment are fixedly connected and disassembled in a reliable and tight manner, which can save the later maintenance cost. Three knife teeth 32 are welded on the moving knife 3.

[0041] The above is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, equivalent changes and modifications made without departing from the principle of the present utility model should still fall within the protection scope of the present utility model.

[0042] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this application is in its usual placement, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present application.

[0043] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meanings of "a plurality" and "several" are two or more, unless otherwise specifically and clearly defined.

[0044] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0046] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0047] In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

Claims

1. Knife roller structure of a crusher, characterized in that: It includes a main shaft, a roller and a number of moving knives; The roller is rotatably sleeved on the main shaft, and the moving knives are arranged at intervals on the roller; Each moving knife is divided into multiple moving knife groups, each moving knife group includes at least one moving knife, the moving knife includes a knife body radially protruding from the outer wall of the roller, and at least one protruding knife tooth is provided on the outer end side wall of the knife body away from the roller; Each moving knife group is distributed at intervals along the axial direction of the roller, and the moving knives of adjacent moving knife groups are distributed at intervals in the circumferential direction of the roller.

2. The cutter roll structure of a crusher according to claim 1, characterized in that: Each moving knife group includes more than two moving knives, and the moving knives in the moving knife group are evenly distributed at intervals in the circumferential direction; the moving knives of adjacent moving knife groups are staggered in the circumferential direction.

3. The cutter roller structure of a crusher according to claim 2, characterized in that: The moving knife group includes three moving knives, and the three moving knives in the moving knife group are distributed at intervals of 120° in the circumferential direction; the adjacent moving knife groups are spaced 40° in the circumferential direction.

4. The cutter roller structure of a crusher according to claim 1, characterized in that: Two or more knife teeth are provided on the knife body, and each knife tooth is distributed along the radial direction of the roller, and the radially adjacent knife teeth are respectively welded to the front and rear side walls of the knife body along the axial direction of the roller.

5. A cutter roller structure of a crusher according to any one of claims 1-4, characterized in that: The knife tooth directions of each moving knife are the same, all facing the circumferential direction of the roller.

6. The cutter roller structure of a crusher according to any one of claims 1-4, characterized in that: The knife teeth are made of high-strength and corrosion-resistant materials.

7. The cutter roller structure of a crusher according to claim 1, characterized in that: The roller includes a roller body and two end plates; the roller body is in a hollow cylindrical shape, and annular flanges protruding radially outward are respectively provided on the outer walls at both ends of the roller body; the two end plates are respectively fixedly connected to the openings at both ends of the roller body; a through hole is provided in the middle of the end plate, the main shaft passes through the through hole of the end plate, and is fixed to the middle of the end plate through an expansion coupling sleeve, and a sealing dynamic ring is also provided outside the expansion coupling sleeve.

8. The cutter roller structure of a crusher according to claim 7, characterized in that: The middle of the end plate has a connecting boss, the middle of the connecting boss is an installation groove, the installation groove communicates with the through hole of the end plate in the middle, and an annular retaining wall is formed on the inner side of the installation groove around the through hole of the end plate; the expansion coupling sleeve is sleeved on the main shaft and installed in the installation groove, and is limited inward by the annular retaining wall; the sealing dynamic ring is attached to the outer side of the connecting boss away from the center of the roller, and a through hole is provided in the middle of the sealing dynamic ring for the main shaft to pass through, and an outer sealing ring is provided between the through hole and the main shaft; the periphery of the sealing dynamic ring is locked and fixed to the connecting boss through a number of screws, and an inner sealing ring is provided between the inner periphery of the sealing dynamic ring and the connecting boss.

9. The cutter roller structure of a crusher according to claim 8, characterized in that: The outer sealing ring is a lip-shaped sealing ring; the inner sealing ring is an O-shaped sealing ring.

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