Crushing knife device for finely crushing waste tires

Abstract

The utility model discloses a crushing knife device for finely crushing waste tires, which comprises a fixed knife fixedly mounted on a machine body of a fine crusher and a movable knife fixedly mounted on a rotor of the fine crusher, and a blade of the movable knife is parallel to a rotating axis of the rotor. A cutting edge of the fixed cutter is provided with a shearing and biting section which is crossed with a cutting edge of the movable cutter, a shearing action is formed between the cutting edge of the fixed cutter and the shearing and biting section, the shearing and fine crushing effects can be ensured by utilizing the shearing action, the cutting edge of the movable cutter can be parallel to the axis of the rotating shaft by arranging the shearing and biting section on the fixed cutter, and the cutting edge of the movable cutter can be parallel to the axis of the rotating shaft. A polishing machine for linear polishing can be conveniently installed on the machine body for online polishing, the dismounting and mounting work in the maintenance process can be reduced, and the polishing and maintenance safety can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing machinery, in particular to a cutter device for finely crushing waste vehicle tires. Background Art

[0002] In the process of recycling and treating waste vehicle tire resources, a fine crusher is used to further crush the vehicle tires that have been roughly crushed into particles into powder. In this fine crusher, a number of moving knives are installed on a rotor that rotates at a high speed, and a fixed knife is fixedly installed on the machine body. By using the shearing action between the moving knife and the fixed knife, the tire particles are continuously sheared to achieve the purpose of fine crushing. After working for a certain period of time, the knife edges will have varying degrees of wear and need to be disassembled for grinding and maintenance. During the maintenance process, based on the need to achieve a scissor-like shearing effect between the moving knife and the fixed knife in the fine crusher, the moving knives on the rotor are generally installed obliquely. In addition, due to the relatively large volume of the rotor, it is very difficult for workers to precisely grind the obliquely installed moving knives on the machine body during disassembly and grinding maintenance. Therefore, it is often necessary to remove the entire rotor, transfer it to a designated location as a whole, and cooperate with relevant tooling for manual grinding. Considering that the rotor weighs up to 3 - 4 tons and there are bearings and power transmission connections between the rotor and the machine body, the disassembly and assembly work of the rotor is very time-consuming and laborious, and there are also great safety hazards. Therefore, it is necessary to provide a measure to simplify the grinding and maintenance work to improve the above situation. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a cutter device for finely crushing waste vehicle tires that can ensure the shearing and fine crushing effect, is conducive to reducing the disassembly and assembly work during maintenance, and is conducive to improving the safety of grinding and maintenance.

[0004] To solve the above technical problem, the technical solution of the utility model is: a cutter device for finely crushing waste vehicle tires, including a fixed knife fixedly installed on the machine body of the fine crusher and a moving knife fixedly installed on the rotor of the fine crusher. The knife edge of the moving knife is arranged parallel to the rotation axis of the rotor. A shearing and biting section that intersects with the knife edge of the moving knife is provided on the knife edge of the fixed knife. A shearing action is formed between the knife edge of the fixed knife and the shearing and biting section.

[0005] As a preferred technical solution, a section of the shearing and biting section is provided on the fixed knife, and the shearing and biting section is arranged obliquely.

[0006] As a preferred technical solution, two sections of the shearing and biting section are provided on the fixed knife, and the two shearing and biting sections are arranged in a V shape.

[0007] As a preferred technical solution, two sections of the shearing and biting section are provided on the fixed knife, and the two shearing and biting sections are arranged in an inverted V shape.

[0008] As a preferred technical solution, three sections of the shearing and biting section are provided on the fixed knife, and the three shearing and biting sections are arranged in an N shape.

[0009] As a preferred technical solution, four of the aforesaid shearing and biting sections are provided on the stationary knife, and the four shearing and biting sections are arranged in a W shape.

[0010] Due to the adoption of the aforesaid technical solution, a shredding knife device for shredding waste vehicle tires includes a stationary knife fixedly installed on the body of a shredder and a moving knife fixedly installed on the rotor of the shredder. The cutting edge of the moving knife is arranged parallel to the rotation axis of the rotor. A shearing and biting section intersecting with the cutting edge of the moving knife is provided on the cutting edge of the stationary knife. A shearing effect is formed between the cutting edge of the stationary knife and the shearing and biting section. By using this shearing effect, the shearing and shredding effect can be ensured. By arranging the shearing and biting section on the stationary knife, the cutting edge of the moving knife can be parallel to the axis of the rotating shaft, which facilitates the installation of a grinding machine for straight-line grinding on the body for on-line grinding, is conducive to reducing the disassembly and assembly work during maintenance, and is conducive to improving the safety of grinding maintenance. Description of the Drawings

[0011] The following drawings are only intended to illustrate and explain the present invention schematically and do not limit the scope of the present invention. Among them:

[0012] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0013] Figure 2 is Figure 1 a left-view structural diagram of

[0014] Figure 3 is a schematic diagram of the principle when Embodiment 1 of the present invention is used in a shredder;

[0015] Figure 4 is a schematic diagram of the principle when Embodiment 1 of the present invention is on-line ground using a grinding machine;

[0016] Figure 5 is a schematic structural diagram of Embodiment 2 of the present invention;

[0017] Figure 6 is a schematic structural diagram of Embodiment 3 of the present invention;

[0018] Figure 7 is a schematic structural diagram of Embodiment 4 of the present invention;

[0019] Figure 8 is a schematic structural diagram of Embodiment 5 of the present invention.

[0020] In the drawings: 1 - body; 2 - rotor; 3 - stationary knife; 31 - shearing and biting section; 4 - moving knife; 5 - grinding machine. Detailed Embodiments

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present utility model are described by way of illustration. It goes without saying that those of ordinary skill in the art can recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the drawings and the description are illustrative in nature and are not used to limit the protection scope of the claims.

[0022] Embodiment 1: As shown in Figure 1 , Figure 2 and Figure 3 , the shredding knife device for waste vehicle tires includes a fixed knife 3 fixedly installed on the body 1 of the shredder and a moving knife 4 fixedly installed on the rotor 2 of the shredder. Of course, the moving knives 4 are circumferentially evenly distributed on the rotor 2, and the number thereof is set according to actual shredding requirements and the like, which will not be elaborated here. The cutting edge of the moving knife 4 is arranged parallel to the rotation axis of the rotor 2, and a shearing and biting section 31 that intersects with the cutting edge of the moving knife 4 is provided on the cutting edge of the fixed knife 3, and a shearing action is formed between the cutting edge of the fixed knife 3 and the shearing and biting section 31.

[0023] In this embodiment, the shearing and biting section 31 is obliquely arranged, and the moving knife 4 is integrally arranged in a direction parallel to the axis of the rotor 2. When the moving knife 4 passes through the shearing and biting section 31, a biting or scissor-like shearing action can be formed with it to ensure the shearing and shredding effect. As shown in Figure 4 , the attitude of the cutting edge of the moving knife 4 is relatively neat and regular in space, which is convenient for installing relevant grinding machinery 5 on the body 1 to directly perform on-line linear grinding along the cutting edge of the moving knife 4, which is beneficial to reducing the disassembly and assembly work during maintenance and improving the safety of grinding and maintenance.

[0024] In this embodiment, a section of the shearing and biting section 31 is provided on the fixed knife 3, and the shearing and biting section 31 is obliquely arranged. Thus, the fixed knife 3 in this embodiment can be an integral knife body, and the cutting edge on the knife body forms this section of the shearing and biting section 31.

[0025] Embodiment 2: As shown in Figure 5 , the difference between this embodiment and Embodiment 1 is that: two sections of the shearing and biting section 31 are provided on the fixed knife 3, and the two shearing and biting sections 31 are arranged in a V shape. Thus, the fixed knife 3 can be composed of two knife bodies, and the two knife bodies are arranged in a V shape to form the above-mentioned shearing and biting section 31 arranged in a V shape.

[0026] Embodiment 3: As shown in Figure 6As shown in the figure, the difference between this embodiment and the first embodiment is that: there are two of the cutting and biting sections 31 provided on the fixed knife 3, and the two cutting and biting sections 31 are arranged in an inverted V shape. Thus, the fixed knife 3 is also composed of two knife bodies, and the two knife bodies are arranged in an inverted V shape, forming the above-mentioned cutting and biting sections 31 arranged in an inverted V shape.

[0027] Embodiment Four: As Figure 7 shown in the figure, the difference between this embodiment and the first embodiment is that: there are three of the cutting and biting sections 31 provided on the fixed knife 3, and the three cutting and biting sections 31 are arranged in an N shape. Thus, the fixed knife 3 can be composed of three knife bodies, and the three knife bodies are arranged in an N shape, forming the above-mentioned cutting and biting sections 31 arranged in an N shape.

[0028] Embodiment Five: As Figure 8 shown in the figure, the difference between this embodiment and the first embodiment is that: there are four of the cutting and biting sections 31 provided on the fixed knife 3, and the four cutting and biting sections 31 are arranged in a W shape. Thus, the fixed knife 3 can be composed of four knife bodies, and the four knife bodies are arranged in a W shape, forming the above-mentioned cutting and biting sections 31 arranged in a W shape.

[0029] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, such as changes in the number of the cutting and biting sections 31 provided, and changes in the arrangement form of the cutting and biting sections 31, etc. These changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Scrap tire fine crushing cutter device, including a fixed cutter fixedly installed on the body of the fine crusher and a moving cutter fixedly installed on the rotor of the fine crusher, characterized in that: The cutting edge of the moving knife is arranged parallel to the rotation axis of the rotor. A shearing section that intersects with the cutting edge of the moving knife is provided on the cutting edge of the fixed knife, and a shearing action is formed between the cutting edge of the fixed knife and the shearing section.

2. The shredding knife device for shredding waste vehicle tires according to claim 1, wherein: One shearing section is provided on the fixed knife, and the shearing section is arranged obliquely.

3. The shredding knife device for shredding waste vehicle tires according to claim 1, characterized in that: Two shearing sections are provided on the fixed knife, and the two shearing sections are arranged in a V shape.

4. The shredding knife device for shredding waste vehicle tires according to claim 1, wherein: Two shearing sections are provided on the fixed knife, and the two shearing sections are arranged in an inverted V shape.

5. The shredding knife device for shredding waste vehicle tires according to claim 1, wherein: Three shearing sections are provided on the fixed knife, and the three shearing sections are arranged in an N shape.

6. The shredding knife device for shredding waste vehicle tires according to claim 1, wherein: Four shearing sections are provided on the fixed knife, and the four shearing sections are arranged in a W shape.

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