Mechanical tooth for waste material processing

Abstract

The utility model discloses a kind of waste material processing with mechanical tooth, including mechanical tooth body, the mechanical tooth body is by the working part and assembly part of up and down arrangement, the working part is recessed to form assembly recess towards inside in one side near top, a hard alloy block matched with assembly recess is welded in assembly recess, as the working head of material is used, the bottom of the working part is connected with assembly part by arc transition edge, positioning hole is vertically provided in assembly part, and the positioning hole is inserted into bolt after assembly part is inserted into pulverizer, to realize the assembly between pulverizer and mechanical tooth body. The utility model has the advantages of simple structure, easy to install and use, good firmness, reasonable structure, high hardness and high wear resistance, greatly improve work efficiency etc.

Description

Technical Field

[0001] This utility model belongs to the field of shredder technology, specifically relating to a mechanical tooth for waste shredding. Background Technology

[0002] A shredder is a machine that crushes large solid raw materials to the required size. Shredders achieve their crushing and processing purpose through high-speed impact. Shredder teeth are one of the important components of a shredder, and existing shredders have the following problems: First, during operation, the high-speed impact can easily cause the connection between the teeth and the shredder head to loosen, affecting normal operation. Second, the existing mechanical teeth working heads are prone to wear and tear after prolonged operation, leading to poor wear resistance and even breakage in severe cases, requiring frequent tooth replacement. This is not only cumbersome to replace, but also reduces work efficiency. Therefore, a new type of mechanical tooth for waste material shredding is designed to overcome these problems. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a mechanical tooth for waste material processing that is simple in structure, easy to install and use, has good sturdiness, reasonable structure, high hardness and high wear resistance, and greatly improves work efficiency.

[0004] This utility model is achieved through the following technical solution: a mechanical tooth for waste material processing, comprising a mechanical tooth body, the mechanical tooth body being composed of a working part and an assembly part arranged vertically, one side of the working part near the top being recessed inward to form an assembly groove, a hard alloy block matching the assembly groove being welded in the assembly groove for use as a working head for material processing, the bottom of the working part being connected to the assembly part through an arc-shaped transition edge, a positioning hole penetrating the entire assembly part being vertically opened in the assembly part, and after the assembly part is inserted into the crusher, the crusher and the mechanical tooth body are assembled by bolts inserted into the positioning hole.

[0005] Preferably, the area of ​​the working part at the end away from the assembly part gradually decreases, so that the longitudinal section of the working part has a triangular structure with a smaller top and a larger bottom. The assembly part has a cuboid structure as a whole. The length and width of the assembly part are both smaller than the length and width of the bottom surface of the working part. The assembly part is located in the middle position below the bottom surface of the working part to facilitate assembly.

[0006] Preferably, the working part has a flat, inclined first slope surface on the side facing away from the cemented carbide block, and a curved second slope surface on the side of the working part facing the cemented carbide block with a concave center and a convex bottom.

[0007] Preferably, the middle position of the second slope surface is recessed inward to form a crushing channel, and the two sides of the lower end of the crushing channel converge inward to form a narrow opening. The waste and sewage generated after the working head crushes the material are discharged outward through the narrow opening after going down the crushing channel, thus avoiding splashing of waste and sewage.

[0008] Preferably, a positioning hole is provided in the middle of the assembly part, which runs through the entire assembly part. The positioning hole consists of a countersunk hole and a threaded hole with the same center. The diameter of the countersunk hole is smaller than the diameter of the threaded hole, and the depth is greater than the depth of the threaded hole. This is to facilitate bolt assembly and ensure the stability of the bolt after it is fixed.

[0009] Preferably, the cemented carbide block has multiple powdered cemented carbide particles evenly arranged on it to improve the hardness and wear resistance of the working head, thereby increasing its service life.

[0010] Preferably, the bottom corners of the assembly part are provided with arc-shaped protective edges to prevent bumps and damage during assembly with the crusher.

[0011] The beneficial effects of this utility model are as follows:

[0012] The mechanical teeth for waste material processing designed in this utility model utilize a high-strength, high-wear-resistant cemented carbide block (alloy steel blade angle type) at the working head. A high-strength, high-wear-resistant powdered cemented carbide overlay layer is formed on the cemented carbide block using a welding technique, enhancing surface strength and wear resistance. This protects the working head while improving cutting efficiency. This design effectively overcomes the problems of alloy breakage or falling off due to technical deficiencies, resulting in frequent tooth replacements due to structural damage, significantly reducing operating costs. A long, narrow assembly section is located below the working head for positioning and assembly. Positioning holes in the assembly section allow for bolt insertion and fixation. This utility model features a reasonable overall structure, good robustness, and convenient installation and use. The overall tooth structure is robust, highly impact-resistant, and highly wear-resistant, thereby greatly improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of direction A.

[0015] Figure 3 for Figure 1 A schematic diagram of direction B. Detailed Implementation

[0016] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a mechanical tooth for waste material processing includes a mechanical tooth body, which consists of a working part 1 and an assembly part 2 arranged vertically. One side of the working part 1 near the top is recessed inward to form an assembly groove 3. A hard alloy block 4 that matches the assembly groove 3 is welded into the assembly groove 3 and used as a working head 5 for material processing. The bottom of the working part 1 is connected to the assembly part 2 through an arc-shaped transition edge 6. A positioning hole 7 is vertically opened in the assembly part 2, penetrating the entire assembly part 2. After the assembly part 2 is inserted into the crusher, the crusher and the mechanical tooth body are assembled by inserting bolts into the positioning hole 7.

[0019] During installation, after the assembly part is inserted into the crusher, the bottom surface of the working part serves as the mounting surface. When the crusher is pressed against the bottom surface of the working part, bolts are inserted into the positioning holes to limit and fix it.

[0020] This utility model has an elongated assembly part below the working head for positioning and assembly. Bolts are inserted through positioning holes on the assembly part for fixing, thereby ensuring the stability of the mechanical gear after installation.

[0021] like Figure 2-3 As shown, the area of ​​the working part 1 at the end away from the assembly part 2 gradually decreases, so that the longitudinal section of the working part has a triangular structure with a smaller top and a larger bottom. The assembly part 2 has a cuboid structure as a whole. The length and width of the assembly part 2 are smaller than the length and width of the bottom surface of the working part 1. The assembly part 2 is located in the middle position below the bottom surface of the working part 1 to facilitate assembly.

[0022] The working part 1 has a flat, inclined first slope surface 8 on the side facing away from the cemented carbide block 4, and a curved second slope surface 9 on the side of the working part 1 facing away from the cemented carbide block 4 with a concave center and a convex bottom. The middle position of the second slope surface 9 is concave inward to form a crushing channel 10, and the two sides of the lower end of the crushing channel 10 converge inward to form a narrow opening 11. The waste chips and sewage generated after the working head 5 crushes the material go down along the crushing channel 10 and are discharged outward through the narrow opening 11, avoiding splashing of waste chips and sewage.

[0023] A positioning hole 7, penetrating the entire assembly part, is provided at the center of the assembly part 2. This positioning hole 7 consists of a countersunk hole 12 and a threaded hole 13, both concentric. The diameter of the countersunk hole 12 is smaller than the diameter of the threaded hole 13, while its depth is greater than that of the threaded hole 13. This facilitates bolt assembly and ensures the stability of the bolts after fixing. Multiple powdered cemented carbide particles 14 are evenly distributed on the cemented carbide block 4 to improve the hardness and wear resistance of the working head 5, thereby increasing its service life.

[0024] The mechanical teeth for waste material processing designed in this utility model use a high-strength, high-wear-resistant cemented carbide block in the working head. A high-strength and high-wear-resistant powdered cemented carbide overlay layer is formed on the cemented carbide block using a welding technique, which enhances the surface strength and wear resistance, protects the working head, and improves the cutting effect.

[0025] The bottom corners of the assembly part 2 are each provided with arc-shaped protective edges 15 to prevent damage from bumps during assembly with the crusher. This invention, by providing arc-shaped protective edges at the bottom corners of the assembly part, effectively reduces damage caused by bumps during installation or disassembly, thereby improving the overall service life.

[0026] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A mechanical tooth for waste material processing, comprising a mechanical tooth body, said mechanical tooth body being composed of a working part (1) and an assembly part (2) arranged vertically, characterized in that: The working part (1) has an inward recess on one side near the top to form an assembly groove (3). A hard alloy block (4) matching the assembly groove (3) is welded in the assembly groove (3) and used as a crushing head (5). The bottom of the working part (1) is connected to the assembly part (2) through an arc transition edge (6). A positioning hole (7) is vertically opened in the assembly part (2) and penetrates the entire assembly part (2). After the assembly part (2) is inserted into the crusher, the assembly between the crusher and the mechanical tooth body is realized by inserting bolts into the positioning hole (7).

2. The mechanical gear for waste material processing according to claim 1, characterized in that: The area of ​​the working part (1) at the end away from the assembly part (2) decreases gradually, so that the longitudinal section of the working part has a triangular structure with a smaller top and a larger bottom. The assembly part (2) has a cuboid structure. The length and width of the assembly part (2) are smaller than the length and width of the bottom surface of the working part (1). The assembly part (2) is located in the middle position below the bottom surface of the working part (1) to facilitate assembly.

3. The mechanical gear for waste material processing according to claim 2, characterized in that: The working part (1) has a flat and inclined first slope surface (8) on the side facing away from the cemented carbide block, and a curved second slope surface (9) with a concave middle and convex bottom on the side of the cemented carbide block (4).

4. The mechanical gear for waste material processing according to claim 3, characterized in that: The middle position of the second slope surface (9) is recessed inward to form a crushing channel (10), and the two sides of the lower end of the crushing channel (10) converge inward to form a narrow opening (11). The waste and sewage generated after the working head (5) crushes the material are discharged outward through the narrow opening (11) after going down along the crushing channel (10) to avoid the splashing of waste and sewage.

5. The mechanical gear for waste material processing according to claim 4, characterized in that: The assembly part (2) has a positioning hole (7) that runs through the entire assembly part in the middle position. The positioning hole (7) consists of a countersunk hole (12) and a threaded hole (13) with the same center. The diameter of the countersunk hole (12) is smaller than the diameter of the threaded hole (13), and the depth is greater than the depth of the threaded hole (13). This is used to facilitate bolt assembly and ensure the stability of the bolt after it is fixed.

6. The mechanical gear for waste material processing according to claim 1 or 5, characterized in that: The cemented carbide block (4) is uniformly arranged with multiple powdered cemented carbide particles (14) to improve the hardness and wear resistance of the working head (5), thereby increasing its service life.

7. The mechanical gear for waste material processing according to claim 5, characterized in that: The bottom corners of the assembly part (2) are provided with arc-shaped protective edges (15) to avoid collision damage when assembling with the crusher.

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