Crusher tooth convenient to install

By combining a trapezoidal structure with a hard alloy block, the problems of loosening of the crusher teeth under high-speed impact and poor material wear resistance are solved, achieving stable connection and high wear resistance, thereby improving the working efficiency and service life of the crusher.

CN224072157UActive Publication Date: 2026-04-03ZHEJIANG PACIFIC MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The mechanical teeth of existing crushers are prone to loosening under high-speed impact, resulting in unstable connections and the material is not wear-resistant, leading to frequent replacements and high costs.

Method used

A crusher tooth is designed for easy installation. The crusher tooth body has a trapezoidal structure and is connected by carbide blocks and precision bolts to ensure stable connection and high wear resistance.

Benefits of technology

This achieves stable assembly of the crusher teeth, reduces replacement frequency and cost, and improves service life and working efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a crusher tooth convenient to install, which comprises a blocky crusher tooth body, the crusher tooth body consists of a working part and an installing part which are integrally formed, and the area of one side, far away from the installing part, of the working part is gradually reduced, so that the whole working part is of a trapezoidal structure with a wide lower part and a narrow upper part. At least one mounting hole is formed in the upper end of the working part, a hard alloy block is embedded and welded in each mounting hole to serve as a working head to conduct crushing operation, the lower end of the working part is in transition connection with the mounting part through a transition edge, and the middle position of the mounting part in the vertical direction is concaved inwards to form an assembling through hole. And after the mounting seat of the crusher is inserted into the assembly through hole of the mounting part and is fixed through a fastener, the crusher and the crusher tooth body are connected and fixed. The utility model has the advantages of simple and reasonable structure, convenience in mounting and dismounting, good overall firmness, reduced cost, improved working efficiency and the like.
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Description

Technical Field

[0001] This utility model belongs to the field of crusher technology and relates to a crusher tooth that is easy to install. Background Technology

[0002] A pulverizer is a machine that crushes large solid raw materials to the required size. Pulverizers achieve their crushing purpose through high-speed impact. The pulverizer cutter head, as one of the important components, has the following problems with existing pulverizer teeth: First, during operation, the high-speed impact can easily cause the connection between the pulverizer teeth and the pulverizer body to loosen, affecting normal operation. Second, the existing cutter heads are generally made of steel, which is prone to wear during use, requiring frequent tooth replacement. Disassembly and assembly are inconvenient during replacement, affecting the work process and increasing operating costs. Therefore, a pulverizer tooth design that is easy to install is proposed to overcome the above problems. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a crusher tooth that is easy to install, has a reasonable structure, stable assembly, convenient installation and disassembly, high hardness and high wear resistance, and greatly improves working efficiency and service life.

[0004] This utility model is achieved through the following technical solution: a crusher tooth that is easy to install, comprising a block-shaped crusher tooth body, the crusher tooth body being composed of an integrally formed working part and a mounting part, wherein the area of ​​the working part gradually decreases on the side away from the mounting part, making the working part have a trapezoidal structure that is wider at the bottom and narrower at the top. At least one mounting hole is provided at the upper end of the working part, and a hard alloy block is embedded and welded into each mounting hole to serve as a working head for crushing operations. The lower end of the working part is connected to the mounting part through a transition edge. The middle position of the mounting part in the vertical direction is recessed to form an assembly through hole. After the mounting seat of the crusher is inserted into the assembly through hole of the mounting part and fixed by fasteners, the connection and fixation between the crusher and the crusher tooth body are realized.

[0005] Preferably, the fastener is a long-headed bolt. Horizontal bolt holes are provided on the inner walls of both sides of the mounting hole, located on the side of the mounting part. Each bolt hole consists of a T-shaped first bolt hole and a cylindrical second bolt hole. The first and second bolt holes are positioned correspondingly. Threads are provided on the inner walls of both the first and second bolt holes, and their shapes are adapted to the long-headed bolt. The long-headed bolt passes sequentially through the first bolt hole, the corresponding through hole in the mounting base, and the second bolt hole, ensuring a secure connection between the crusher and the crusher tooth body. Furthermore, the installed long-headed bolt is flush with the side surface of the mounting part, thereby improving the overall aesthetics and service life.

[0006] Preferably, the mounting holes are multiple, all the same size and circular in structure. Some of the mounting holes are located on the top surface of the working part, while the remaining mounting holes are evenly distributed around the top surface of the working part. Each mounting hole has a cylindrical hard alloy block embedded in it to ensure the crushing effect of the working head.

[0007] Preferably, there are 11 mounting holes, of which 3 mounting holes are evenly arranged on the top surface of the working part, 3 mounting holes are evenly arranged on the front and rear sides of the top surface of the working part, and 1 mounting hole is arranged on the left and right sides of the top surface of the working part.

[0008] Preferably, the end of the mounting part away from the working part is provided with an arc-shaped protective edge to prevent scratches or damage caused by bumps during installation between the crusher and the mounting part through hole.

[0009] The beneficial effects of this utility model are as follows: The crusher teeth designed in this utility model are easy to install. Multiple mounting holes are provided on the working part (top surface and surrounding area). Each mounting hole is densely and orderly inlaid with high-strength, high-wear-resistant cylindrical cemented carbide blocks, improving the wear resistance and strength of the working head. This effectively solves the problem of cemented carbide breakage and wear on the working surface caused by the use of large, costly cemented carbide blocks during operation. While reducing costs, the even distribution of the cemented carbide blocks ensures full utilization of the hardness, increasing the product's service life. The crusher teeth and the crusher mounting base are precisely fitted together through assembly through holes (vertically set) and bolt holes (horizontally set), ensuring the crusher teeth are fixed after installation and facilitating installation and disassembly. This utility model has a reasonable structure, stable assembly, convenient installation and disassembly, high hardness and high wear resistance, greatly improving work efficiency and service life. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 for Figure 1 A schematic diagram of direction A.

[0012] Figure 3 for Figure 1 A schematic diagram of direction B. Detailed Implementation

[0013] 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.

[0014] 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.

[0015] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a crusher tooth that is easy to install includes a block-shaped crusher tooth body. The crusher tooth body is composed of an integrally formed working part 1 and a mounting part 2. The area of ​​the working part 1 gradually decreases on the side away from the mounting part 2, so that the working part as a whole has a trapezoidal structure 3 that is wider at the bottom and narrower at the top. At least one mounting hole 4 is provided at the upper end of the working part 1. A hard alloy block 5 is embedded and welded into each mounting hole 4 to perform crushing operations as a working head. The lower end of the working part 1 is connected to the mounting part 2 through a transition edge 6. The mounting part 2 has a recessed middle position in the vertical direction to form an assembly through hole 7. After the mounting seat of the crusher is inserted into the assembly through hole 7 of the mounting part 2, it is fixed by fasteners to realize the connection and fixation between the crusher and the crusher tooth body.

[0016] like Figure 2-3 As shown, the fastener is a long-headed bolt 8. Horizontal bolt holes 9 are provided on the inner walls of both sides of the mounting through hole 7, located on the side of the mounting part 3. Each bolt hole 9 consists of a T-shaped first bolt hole 10 and a cylindrical second bolt hole 11. The first bolt hole 10 and the second bolt hole 11 are positioned correspondingly. Threads 12 are provided on the inner walls of both the first bolt hole 10 and the second bolt hole 11. The shapes of the first bolt hole 10 and the second bolt hole 11 are adapted to the long-headed bolt 8. After the long-headed bolt 8 passes through the first bolt hole 10, the corresponding through hole on the mounting base, and the second bolt hole 11 in sequence, the connection between the crusher and the crusher tooth body is secured. Furthermore, the installed long-headed bolt 8 is flush with the side surface of the mounting part, thereby improving the overall aesthetics and service life. The mounting holes 4 are multiple, all of the same size and circular in structure. Some of the mounting holes 4 are located on the top surface of the working part, while the remaining mounting holes 4 are evenly distributed around the top surface of the working part 1. Each mounting hole 4 has a cylindrical hard alloy block 5 embedded in it to ensure the crushing effect of the working head.

[0017] The crusher teeth designed in this utility model are easy to install. Multiple mounting holes are opened on the working part (top surface and around the top surface). High-strength and high-wear-resistant cylindrical cemented carbide blocks are densely and orderly embedded in each mounting hole, which improves the wear resistance and strength of the working head. It can effectively solve the problem that the original use of high-cost large blocks of cemented carbide was prone to cemented carbide breakage and wear of the working surface body when encountering difficult working conditions.

[0018] There are 11 mounting holes 4, of which 3 mounting holes 4 are evenly arranged on the top surface of the working part 1, 3 mounting holes 4 are evenly arranged on the front and back sides of the top surface of the working part 1, and 1 mounting hole 4 is arranged on the left and right sides of the top surface of the working part 1.

[0019] This invention utilizes the uniform distribution of mounting holes and hard alloy blocks to fully leverage the hard alloy, thereby increasing the product's service life. The overall crusher teeth and the crusher mounting base are precisely fitted together through assembly through holes (vertically set) and bolt holes (horizontally set), ensuring that the crusher teeth are fixed after installation and facilitating installation and disassembly. This invention has a reasonable structure, stable assembly, convenient installation and disassembly, high hardness and high wear resistance, greatly improving work efficiency and service life.

[0020] The end of the mounting part 4 away from the working part is provided with an arc-shaped protective edge 13 to prevent scratches or damage caused by bumps during installation between the crusher and the mounting part through hole.

[0021] 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 shredder tooth for ease of installation comprising a block-shaped shredder tooth body, characterised in that: The pulverizer tooth body is composed of an integral working part (1) and a mounting part (2), wherein the working part (1) gradually decreases in area away from the mounting part (2) side, so that the working part as a whole presents a ladder-shaped structure (3) with a wide lower end and a narrow upper end, at least one mounting hole (4) is provided at the upper end of the working part (1), a hard alloy block (5) is embedded and welded in each mounting hole (4) as a working head for pulverizing operation, the lower end of the working part (1) is connected to the mounting part (2) through a transition edge (6), and a mounting through hole (7) is formed in the vertical middle position of the mounting part (2). After the mounting seat of the pulverizer is inserted into the mounting through hole (7) of the mounting part (2) and fixed by fasteners, the connection and fixation between the pulverizer and the pulverizer tooth body are realized.

2. The easily installed shredder tooth of claim 1, wherein: The fastener is a long head bolt (8), bolt holes (9) horizontally penetrating the inner walls of the mounting through hole (7) are formed on the side body of the mounting part (3), the bolt holes (9) are composed of a first bolt hole (10) with a T-shaped cross section and a second bolt hole (11) with a cylindrical shape, the first bolt hole (10) and the second bolt hole (11) are in position correspondence, threads (12) are provided on the inner side walls of the first bolt hole (10) and the second bolt hole (11), the shapes of the first bolt hole (10) and the second bolt hole (11) are adapted to the long head bolt (8), and the long head bolt (8) is sequentially inserted through the first bolt hole (10), the through hole of the mounting seat and the second bolt hole (11), thereby ensuring the connection and fixation between the pulverizer and the pulverizer tooth body, and the long head bolt (8) after installation is flush with the surface of the side body of the mounting part, thereby improving the overall appearance and service life.

3. The easily installed shredder tooth of claim 1 or 2, wherein: The mounting holes (4) are multiple, the same in size and circular in structure, part of the mounting holes (4) are arranged at the top surface of the working part, and the remaining mounting holes (4) are uniformly arranged at a position close to the top surface of the working part (1) around a circle, and a cylindrical hard alloy block (5) is embedded and welded in each mounting hole (4) to ensure the pulverizing effect of the working head.

4. The easily installed shredder tooth of claim 3, wherein: The mounting holes (4) are 11, 3 mounting holes (4) are uniformly arranged on the top surface of the working part (1), 3 mounting holes (4) are uniformly arranged on the side body of the working part (1) on the front and rear sides of the top surface of the working part (1), and 1 mounting hole (4) is arranged on the side body of the working part (1) on the left and right sides of the top surface of the working part (1).

5. The easily installed shredder tooth of claim 1, wherein: An arc-shaped protective edge (13) is arranged at the end of the mounting part (4) away from the working part, which is used to prevent scratches or damage caused by bumps between the pulverizer and the mounting through hole of the mounting part during installation.