A high-strength pulverizer tooth
By using carbide blocks and limiting devices on the crusher teeth, the problem of loosening and wear of the crusher teeth under high-speed impact is solved, achieving high wear resistance and stability, and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG PACIFIC MACHINERY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-12
AI Technical Summary
The mechanical teeth of existing crushers are prone to loosening under high-speed impacts and the material is not wear-resistant, resulting in frequent replacements and high operating costs.
The working head is made of cemented carbide block, which is fixed by limiting device and bolt. It is stably installed by figure-eight protrusion and limiting post, and the side is reinforced with cemented carbide strip to improve wear resistance.
It achieves high wear resistance and robustness of the crusher teeth, reduces replacement frequency, and improves working efficiency and service life.
Smart Images
Figure CN224346002U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of crusher accessories, specifically relating to a high-strength crusher tooth. 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 high-strength pulverizer tooth is designed 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 high-strength crusher tooth with a simple and reasonable structure, convenient installation and use, good firmness, high wear resistance and impact resistance, and greatly improved working efficiency.
[0004] This utility model is achieved through the following technical solution: a high-strength crusher tooth, comprising a block-shaped crusher tooth body, one end of the top surface of the crusher tooth body is recessed inward to form an assembly groove, a hard alloy block is embedded and welded into the assembly groove as a working head for use, the top surface of the crusher tooth body is inclined upward on the other side away from the working head to form a raised tail, a vertically arranged assembly hole is opened between the tail and the working head on the bottom surface of the crusher tooth body, a limiting device is provided on the bottom surface of the crusher tooth body, after the tail is inserted into the crusher and limited by the limiting device, the crusher tooth body is installed and fixed to the crusher by bolts inserted into the assembly hole.
[0005] Preferably, the bottom surface of the crusher tooth body protrudes outward to form an "8"-shaped protrusion at the middle position. A vertically arranged assembly hole is provided on the side of the protrusion near the tail. The bottom surface of the crusher tooth body extends downward to form a limiting post near the working head. The bottom surface of the limiting post is flush with the bottom surface of the protrusion. The limiting post and the protrusion cooperate to form a limiting device to facilitate the assembly between the crusher tooth body and the crusher.
[0006] Preferably, the cemented carbide block is partially exposed in the assembly groove, and the exposed part has a pointed structure to improve the crushing effect of the working head. Two symmetrical elongated cemented carbide layers extend outward from the end of the cemented carbide block away from the pointed structure. The two elongated cemented carbide layers are respectively welded to the sides of the crusher tooth body near the top. The elongated cemented carbide layers are used to improve the side strength and wear resistance of the crusher tooth body and improve the stability of the cemented carbide block after installation.
[0007] Preferably, a long strip-shaped protrusion is provided at the middle position of the top surface of the tail, which serves as a reinforcing rib to improve the overall strength of the tail.
[0008] Preferably, the crusher tooth body is inclined inward on both sides of the working head and tail to form a first slope surface and a second slope surface. The first slope surface is used to facilitate the operation of the working head, and the second slope surface is used to facilitate the assembly between the crusher tooth body and the crusher.
[0009] Preferably, the assembly hole is circular and blind, consisting of a bolt hole and a countersunk hole at the same center, to facilitate bolt assembly.
[0010] The beneficial effects of this utility model are as follows:
[0011] This utility model's working head uses a large, highly wear-resistant and impact-resistant cemented carbide block to dominate the crushing operation, while the sides are protected by high-hardness, high-wear-resistant cemented carbide strips. This overcomes the problem of frequent tooth replacements due to structural damage caused by technical deficiencies. An "8"-shaped protrusion with a limiting post is used at the bottom of the tooth head body for positioning and assembly. Assembly holes are provided on the "8"-shaped protrusion for bolting to install and secure the crusher tooth body to the crusher. This utility model has a reasonable overall structure, good robustness, and is easy to use and install. The overall tooth head structure is robust, highly impact-resistant, and highly wear-resistant, thereby improving work efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 for Figure 1 A schematic diagram of direction A.
[0014] Figure 3 for Figure 1 A schematic diagram of direction B.
[0015] Figure 4 for Figure 1 A schematic diagram of direction C. 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 1-2 As shown, a high-strength crusher tooth includes a block-shaped crusher tooth body 1. One end of the top surface of the crusher tooth body 1 is recessed inward to form an assembly groove 2. A hard alloy block 3 is embedded and welded into the assembly groove 2 as a working head 4 for use. The top surface of the crusher tooth body 1 is inclined upward on the side away from the working head to form a raised tail 11. A vertically arranged assembly hole 6 is opened on the bottom surface 5 of the crusher tooth body between the tail 11 and the working head 4. A limiting device is provided on the bottom surface 5 of the crusher tooth body. After the tail 11 is inserted into the crusher and limited by the limiting device, the crusher tooth body 1 is installed and fixed to the crusher by bolts inserted into the assembly hole 6.
[0019] The crusher tooth body 1 has an outward protrusion at the middle of its bottom surface, forming an overall "8"-shaped protrusion 7. A vertically arranged assembly hole 6 is provided on the protrusion 7 near the tail 11. The bottom surface of the crusher tooth body extends downward to form a limiting post 8 near the working head. The bottom surface of the limiting post 8 is flush with the bottom surface of the protrusion 7. The limiting post 8 and the protrusion 7 cooperate to form a limiting device to facilitate the assembly between the crusher tooth body 1 and the crusher.
[0020] like Figure 3-4 As shown, the cemented carbide block 3 is partially exposed in the assembly groove 2, and the exposed part is a pointed structure 9, which is used to improve the crushing effect of the working head 4. Two symmetrical elongated cemented carbide layers 10 extend outward from the end of the cemented carbide block 3 away from the pointed structure. The two elongated cemented carbide layers 10 are respectively welded to the sides of the crusher tooth body 1 near the top. The elongated cemented carbide layers 10 are used to improve the side strength and wear resistance of the crusher tooth body 1, and as a connecting part to improve the stability of the cemented carbide block 3 after installation. An elongated protrusion 16 is provided in the middle of the top surface of the tail 11. The elongated protrusion 16 is used as a reinforcing rib to improve the overall strength of the tail 11.
[0021] The crusher tooth body 1 is located on both sides of the working head 4 and the tail 11, which are inclined inward to form a first slope surface 12 and a second slope surface 13. The first slope surface 12 is used to facilitate the operation of the working head 4, and the second slope surface 13 is used to facilitate the assembly between the crusher tooth body 1 and the crusher. The assembly hole 6 is circular and blind. The assembly hole 6 consists of a bolt hole 14 and a countersunk hole 15 with the same center, which is used to facilitate the assembly of bolts.
[0022] This utility model's working head uses a large, highly wear-resistant and impact-resistant cemented carbide block to dominate the crushing operation, while the sides are protected by high-hardness, high-wear-resistant cemented carbide strips. This overcomes the problem of frequent tooth replacements due to structural damage caused by technical deficiencies. An "8"-shaped protrusion with a limiting post is used at the bottom of the tooth head body for positioning and assembly. Assembly holes are provided on the "8"-shaped protrusion for bolting to install and secure the crusher tooth body to the crusher. This utility model has a reasonable overall structure, good robustness, and is easy to use and install. The overall tooth head structure is robust, highly impact-resistant, and highly wear-resistant, thereby improving work efficiency.
[0023] 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 high-strength crusher tooth, comprising a block-shaped crusher tooth body (1), characterized in that: One end of the top surface of the crusher tooth body (1) is recessed inward to form an assembly groove (2). A hard alloy block (3) is embedded and welded in the assembly groove (2) as a working head (4) for use. The top surface of the crusher tooth body (1) is tilted upward on the other side away from the working head to form a raised tail (11). A vertically arranged assembly hole (6) is opened on the bottom surface (5) of the crusher tooth body between the tail (11) and the working head (4). A limiting device is provided on the bottom surface (5) of the crusher tooth body. After the tail (11) is inserted into the crusher and limited by the limiting device, the crusher tooth body (1) is installed and fixed with the crusher by inserting a bolt into the assembly hole (6).
2. The high-strength crusher teeth according to claim 1, characterized in that: The crusher tooth body (1) has an outward protrusion at the middle of the bottom surface to form an "8"-shaped protrusion (7). A vertically arranged assembly hole (6) is provided on the protrusion (7) near the tail (11). The bottom surface of the crusher tooth body extends downward to form a limiting post (8) near the working head. The bottom surface height of the limiting post (8) is flush with the bottom surface height of the protrusion (7). The limiting post (8) and the protrusion (7) cooperate to serve as a limiting device to facilitate the assembly between the crusher tooth body (1) and the crusher.
3. The high-strength crusher teeth according to claim 1 or 2, characterized in that: The cemented carbide block (3) is partially exposed in the assembly groove (2) and the exposed part is a pointed structure (9) to improve the crushing effect of the working head (4). Two symmetrical long strip cemented carbide layers (10) extend outward from the end of the cemented carbide block (3) away from the pointed structure. The two long strip cemented carbide layers (10) are respectively welded to the sides of the crusher tooth body (1) near the top. The long strip cemented carbide layers (10) are used to improve the side strength and wear resistance of the crusher tooth body (1) and improve the stability of the cemented carbide block (3) after installation.
4. The high-strength crusher teeth according to claim 2, characterized in that: A long strip protrusion (16) is provided at the middle position of the top surface of the tail (11). The long strip protrusion (16) is used as a reinforcing rib to improve the overall strength of the tail (11).
5. The high-strength crusher teeth according to claim 2, characterized in that: The crusher tooth body (1) is located on both sides of the working head (4) and the tail (11) and is inclined inward to form a first slope surface (12) and a second slope surface (13). The first slope surface (12) is used to facilitate the operation of the working head (4) and the second slope surface (13) is used to facilitate the assembly between the crusher tooth body (1) and the crusher.
6. The high-strength crusher teeth according to claim 2, characterized in that: The assembly hole (6) is circular and blind. The assembly hole (6) consists of a bolt hole (14) and a countersunk hole (15) with the same center, which is used to facilitate the assembly of bolts.