Cutter group for single-shaft shredder and single-shaft shredder

Abstract

The utility model provides a knife tackle for the single shaft shredder and the single shaft shredder, the knife tackle for the single shaft shredder comprises a fixed knife assembly and a movable knife assembly, the fixed knife assembly comprises a fixed frame, a fixed knife holder arranged on the fixed frame and a fixed knife arranged on the fixed knife holder, a plurality of positioning grooves are arranged on one side of the fixed knife holder in rows, and the movable knife assembly is arranged on the fixed knife holder. The positioning groove is provided with a bottom wall and a side wall, the fixed cutters are respectively arranged in the positioning groove and are fixed with the bottom wall of the positioning groove, the side surfaces of the fixed cutters abut against the side wall of the positioning groove, and the cutting edges of the fixed cutters protrude out of the positioning groove; the movable cutter assembly comprises a rotary drum, a movable cutter holder arranged on the rotary drum and a movable cutter arranged on the movable cutter holder, the rotary drum drives the movable cutter to pass through the fixed cutter, and shearing force is formed between the movable cutter and the fixed cutter. By optimizing the structures of the fixed cutter assembly and the movable cutter assembly, on one hand, the movable cutter and the fixed cutter are more convenient to replace and maintain, and on the other hand, the processing range and the processing efficiency of the shredding machine are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection equipment technical field especially, a kind of knife group and single-shaft shredder for single-shaft shredder. BACKGROUND

[0002] With the continuous improvement of resource recycling and environmental protection requirements, single-shaft shredder is widely used in resource recycling and regeneration, such as aluminum scrap, aluminum profile, pop can and other fields. As key components of single-shaft shredder, the performance and cooperation of fixed knife set and moving knife set directly affect the working efficiency and shredding effect of the shredder. The existing single-shaft shredder fixed knife set and moving knife set structure has some shortcomings, such as unstable installation of fixed knife and moving knife, easy to loosen or shift, affecting the shredding precision; the structure design of fixed knife seat is unreasonable, which leads to difficulty in replacing and maintaining fixed knife and moving knife, increasing production cost and maintenance time. The structure design of moving knife seat is unreasonable, which leads to uneven stress of moving knife, affecting the overall performance of the shredder.

[0003] Therefore, it is necessary to design a single-shaft shredder knife group and single-shaft shredder to solve the above problems. SUMMARY

[0004] The utility model aims at providing a single-shaft shredder knife group with reasonable structure design and stable installation.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a single-shaft shredder knife group, comprising a fixed knife assembly and a moving knife assembly, the fixed knife assembly comprises a fixed frame, a fixed knife seat arranged on the fixed frame, and a fixed knife arranged on the fixed knife seat, a plurality of positioning grooves are arranged on one side of the fixed knife seat, the positioning groove has a bottom wall and a side wall, the fixed knife is arranged in the positioning groove and fixed with the bottom wall of the positioning groove, the side surface of the fixed knife abuts against the side wall of the positioning groove, and the cutting edge of the fixed knife protrudes from the positioning groove; the moving knife assembly comprises a rotating drum, a moving knife seat arranged on the rotating drum, and a moving knife arranged on the moving knife seat, the rotating drum drives the moving knife to pass through the fixed knife, and the shearing force is formed between the moving knife and the fixed knife.

[0006] As a further improved technical scheme of the utility model, the fixed knife comprises a square main body, the four side edges of the square main body of the fixed knife are cutting edges, the bottom wall of the positioning groove is square, the positioning groove has two mutually perpendicular side walls, and the adjacent two side surfaces of the fixed knife abut against the two side walls respectively.

[0007] As a further improved technical scheme of the utility model, the fixed knife is fixed with the bottom wall by bolts.

[0008] As a further improved technical scheme of the utility model, the bottom wall between two adjacent positioning grooves has a right-angle notch.

[0009] As a further improved technical scheme of the utility model, the movable cutter assembly further comprises a gasket, which is arranged between the movable cutter and the movable cutter seat.

[0010] As a further improved technical scheme of the utility model, the movable cutter assembly further comprises a support plate, which is arranged on the side of the movable cutter seat away from the movable cutter, the bottom of the support plate is fixed to the rotating drum, one side of the support plate is fixed to the movable cutter seat, the movable cutter is located in front of the rotating drum in the rotating direction, and the support plate is located behind the rotating drum in the rotating direction.

[0011] As a further improved technical scheme of the utility model, the movable cutter comprises a square main body, and four sides of the square main body of the movable cutter are knife edges.

[0012] As a further improved technical scheme of the utility model, the three knife edges of the movable cutter away from the rotating drum all protrude from the movable cutter seat.

[0013] As a further improved technical scheme of the utility model, the movable cutter, the gasket and the movable cutter seat are fixed through penetrating bolts.

[0014] The utility model aims at providing a single-shaft shredder which has good shredding effect and stable work.

[0015] To achieve the above object, the utility model adopts the following technical scheme: a single-shaft shredder which comprises the cutter group for single-shaft shredder, the rack and the material pushing mechanism, the material pushing mechanism and the cutter group for single-shaft shredder are arranged on the rack, and the material pushing mechanism is used for pushing materials to the movable cutter and the fixed cutter for shearing.

[0016] According to the above technical scheme, the cutter group for single-shaft shredder and the single-shaft shredder have the following advantages:

[0017] Through the close cooperation between the fixed cutter and the movable cutter, when the rotating drum drives the movable cutter to pass through the fixed cutter, strong shearing force can be formed between the fixed cutter and the movable cutter, so that the materials can be effectively shredded, and the single-shaft shredder can show good crushing effect when processing various hard or tough materials.

[0018] The design of the fixed cutter assembly adopts a detachable fixed cutter seat and positioning groove structure, so that the replacement of the fixed cutter becomes simple and fast.

[0019] The knife set design can adapt to materials of different thicknesses and hardnesses, and by adjusting the distance between the fixed knife and the moving knife and the angle of the blade, effective shredding of different materials can be realized.

[0020] The design of the fixed knife and the moving knife takes into account the safety of operation, avoids direct contact with moving parts, and reduces the safety risks during operation; the optimized knife set design and efficient shearing mechanism mean that less energy is required to achieve the same crushing effect, thereby reducing the energy consumption of the entire system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Figure 1 is a partial schematic view of a single-shaft shredder according to an embodiment of the present application.

[0022] Figure 2 Figure 2 is an exploded view of the fixed knife seat and the fixed knife in the single-shaft shredder according to an embodiment of the present application.

[0023] Figure 3 Figure 3 is a perspective view of the moving knife assembly in the single-shaft shredder according to an embodiment of the present application.

[0024] Figure 4 Figure 4 is an exploded view of the moving knife assembly in the single-shaft shredder according to an embodiment of the present application. Figure 3 DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be described in detail below with reference to the drawings and specific embodiments.

[0026] Please refer to Figure 1 The single-shaft shredder provided by the present application includes a rack, a knife set for a single-shaft shredder, and a material pushing mechanism 30. The material pushing mechanism 30 and the knife set for a single-shaft shredder are arranged on the rack. The material pushing mechanism 30 is used to push the material to the knife set for a single-shaft shredder for shearing.

[0027] The knife set for a single-shaft shredder includes a fixed knife assembly 10 and a moving knife assembly 20 that cooperate with each other. The fixed knife assembly 10 includes a fixed frame 11, a fixed knife seat 12 arranged on the fixed frame 11, and a fixed knife 13 arranged on the fixed knife seat 12. The fixed frame 11 is fixed to the rack to support the fixed knife seat 12 and the fixed knife 13.

[0028] Please refer to Figure 2 ​As shown, the main body of the fixed knife seat 12 is provided with a plurality of fixing holes 121, the fixed knife seat 12 is fixed on the fixed frame 11 through the fixing holes 121 and bolts, the fixing holes 121 are arranged in a row, which ensures that the fixed knife seat 12 can be firmly installed on the rack and will not be loosened or displaced during work. A plurality of positioning grooves 122 are arranged on one side of the fixed knife seat 12, the positioning grooves 122 have a bottom wall 1221 and side walls 1222 and 1223. The bottom wall 1221 is square, and the two side walls 1222 and 1223 are perpendicular to each other. The bottom walls 1221 of two adjacent positioning grooves 122 have a right-angle gap.

[0029] The fixed knife 13 includes a square body, the four sides of the square body of the fixed knife 13 are knife edges, the fixed knife 13 is arranged in the positioning groove 122 and fixed with the bottom wall 1221 of the positioning groove 122, the side surfaces 132 and 133 of the fixed knife 13 abut against the side walls 1222 and 1223 of the positioning groove 122 respectively, and the knife edge of the fixed knife 13 protrudes from the front end of the positioning groove 122. The fixed knife 13 is provided with a fixing hole 131 and is fixed with the bottom wall 1221 through a bolt. When replacing or maintaining, the bolt is only loosened, and the fixed knife 13 can be disassembled from the fixed knife seat 12, which is simple and fast in operation, reduces production cost and maintenance time. The fixed knife 13 is stably and reliably fixed through the cooperation of the positioning groove 122 and the bolt, which ensures that the fixed knife 13 will not be loosened or displaced during work, accurately positions the fixed knife, will not have installation deviation, improves shredding precision and work efficiency.

[0030] Please refer to Figure 3 and Figure 4 As shown, the movable knife assembly 20 includes a rotating drum 21, a movable knife seat 24 arranged on the rotating drum 21, a movable knife 22 arranged on the movable knife seat 24, a gasket 23 arranged between the movable knife 22 and the movable knife seat 24, and a support plate 25. The rotating drum 21 drives the movable knife 22 to pass through the fixed knife 13, and the movable knife 22 and the fixed knife 13 form a shearing force.

[0031] Support plate 25 is arranged on the side of moving cutter seat 24 away from moving cutter 22, for enhancing the stability of moving cutter seat 24. The bottom of support plate 25 is fixed with rotary drum 21, one side of support plate 25 is fixed with moving cutter seat 24, moving cutter 22 is located in front of rotary drum 21 in the direction of rotation, and support plate 25 is located in the rear of rotary drum 21 in the direction of rotation. Moving cutter 22 comprises a square body, and the four sides of the square body are cutter edges. Three cutter edges 22a, 22b and 22c of moving cutter 22 away from rotary drum 21 all protrude from moving cutter seat 24, so that multiple cutter edges of moving cutter 22 can participate in shearing, thereby improving the utilization rate of multiple cutter edges of moving cutter 22. Mounting holes 221, 231 and 241 are respectively arranged on moving cutter 22, gasket 23 and moving cutter seat 24, and the three are fixed through penetrating bolts. Adding gasket 23 between moving cutter 22 and moving cutter seat 24 can adjust the position of moving cutter 22, thereby changing the gap between moving cutter 22 and fixed cutter 13, and the adjustment mode is simple, easy to implement and high in precision; on the other hand, gasket 23 plays a role of shock absorption, effectively improves the installation stability of moving cutter 22 on moving cutter seat 24, and moving cutter 22 is not easy to loosen or fall off, thereby ensuring the normal operation of the shredder.

[0032] In the embodiment, fixed cutter 13 and moving cutter 22 are both made of cold work die steel DC53, so as to have good wear resistance and hardness, and the cutter edges are specially treated to improve sharpness and durability, thereby prolonging the service life of the fixed cutter and the moving cutter.

[0033] The terms such as "upper", "lower", "front", "back" and the like used herein for indicating spatial relative positions are used for the purpose of facilitating the description to describe the relationship of one feature relative to another feature as shown in the drawings. It can be understood that the terms of spatial relative positions can be intended to include different orientations other than the orientations shown in the drawings, and should not be understood as the limitation to the claims.

[0034] In addition, the above embodiment is only used for illustrating the technical scheme described in the utility model and not for limiting the technical scheme described in the utility model, and the understanding of the specification should be based on the technical personnel in the art, although the utility model has been described in detail in the specification with reference to the above embodiment, however, the ordinary technical personnel in the art should understand that the technical personnel in the art can still modify or equivalently replace the utility model, and all the technical schemes and improvements which do not deviate from the spirit and scope of the utility model should be covered in the claim range of the utility model.

Claims

1. A knife set for a single shaft shredder, characterized by: The fixed knife assembly comprises a fixed frame, a fixed knife seat arranged on the fixed frame, and a fixed knife arranged on the fixed knife seat, a plurality of positioning grooves are arranged on one side of the fixed knife seat, the positioning grooves have bottom walls and side walls, the fixed knives are arranged in the positioning grooves respectively and fixed with the bottom walls of the positioning grooves, the side surfaces of the fixed knives abut against the side walls of the positioning grooves, and the cutting edges of the fixed knives protrude from the positioning grooves; the movable knife assembly comprises a rotating drum, a movable knife seat arranged on the rotating drum, and a movable knife arranged on the movable knife seat, the rotating drum drives the movable knife to pass through the fixed knife, and the movable knife and the fixed knife form a shearing force.

2. The knife set for a uniaxial shredder according to claim 1, characterized in that: The fixed knife comprises a square main body, four side edges of the square main body of the fixed knife are cutting edges, the bottom walls of the positioning grooves are square, the positioning grooves have two mutually perpendicular side walls, and the adjacent two side surfaces of the fixed knife abut against the two side walls respectively.

3. The knife set for a uniaxial shredder according to claim 2, wherein: The fixed knife is fixed with the bottom wall through bolts.

4. The knife set for a uniaxial shredder according to claim 2, wherein: The bottom walls of the adjacent two positioning grooves have right-angle notches.

5. The knife set for a uniaxial shredder according to claim 1, wherein: The movable knife assembly further comprises a gasket, and the gasket is arranged between the movable knife and the movable knife seat.

6. The knife set for a uniaxial shredder according to claim 5, characterized in that: The movable knife assembly further comprises a support plate, the support plate is arranged on the side of the movable knife seat away from the movable knife, the bottom of the support plate is fixed with the rotating drum, and one side of the support plate is fixed with the movable knife seat.

7. The knife set for a uniaxial shredder according to claim 6, characterized in that: The movable knife comprises a square main body, and four side edges of the square main body of the movable knife are cutting edges.

8. The knife set for a uniaxial shredder according to claim 7, characterized in that: The three cutting edges of the movable knife away from the rotating drum protrude from the movable knife seat.

9. The knife set for a uniaxial shredder according to claim 8, characterized in that: The movable knife, the gasket, and the movable knife seat are fixed through bolts.

10. A single shaft shredder characterized by: The single-shaft shredder comprises a knife assembly, a frame, and a pushing mechanism, the pushing mechanism and the single-shaft shredder knife assembly are arranged on the frame, and the pushing mechanism is used for pushing materials to the movable knife and the fixed knife for shearing.

Images