A modular chipper mechanical tooth for ease of installation

By designing a combined crusher mechanical gear, using a high-strength alloy steel tooth head and tooth base structure, the problems of loose connection, poor wear resistance, and high maintenance cost of crusher mechanical gear are solved, thereby improving stability and wear resistance and reducing operating costs.

CN224346003UActive Publication Date: 2026-06-12ZHEJIANG PACIFIC MACHINERY CO LTD

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

Technical Problem

Existing crusher mechanical teeth suffer from problems such as loose connections, poor wear resistance, high maintenance costs, and frequent replacements.

Method used

A combined crusher mechanical gear was designed, which adopts a high-strength alloy steel tooth head and tooth seat structure, and is fixed by positioning through holes and long head bolts. The stability and wear resistance are enhanced by positioning protrusions and hard alloy blocks.

Benefits of technology

It improves the ease of installation and disassembly, reduces maintenance costs, enhances the stability and wear resistance of mechanical teeth, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224346003U_ABST
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Abstract

The utility model discloses a combined type material crusher mechanical tooth convenient to install, including tooth head and tooth seat, one side of tooth seat is the welding surface, is used for welding tooth seat on the material crusher, and the other side of tooth seat upper portion is recessed inward, forms the assembly recess for placing tooth head of open top, and the first positioning through -hole of vertical through whole tooth seat is set up in tooth seat below assembly recess, and the second positioning through -hole of vertical through whole tooth head is set up on tooth head, and tooth head is installed in assembly recess, and its first positioning through -hole is communicated with second positioning through -hole, and installs nut to it through long head bolt and passes second positioning through -hole, first positioning through -hole and is fixed, guarantees the stability of whole after installation. The utility model has the advantages of simple structure, convenient installation and removal, greatly improves work efficiency etc.
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Description

Technical Field

[0001] This utility model belongs to the technical field of crusher accessories, specifically relating to a modular crusher mechanical gear 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. As a crucial component of the pulverizer, the mechanical teeth of existing pulverizers suffer from the following problems: First, during operation, the high-speed impact can easily loosen the connection between the mechanical teeth and the pulverizer body, affecting normal operation. Second, existing pulverizer heads are prone to wear during use, and using alloy steel results in higher overall costs. Third, existing pulverizer mechanical teeth are generally of a one-piece structure and are consumable parts, requiring frequent replacement. However, when damaged or partially damaged, the entire tooth needs to be replaced, increasing maintenance costs and reducing work efficiency.

[0003] To address this issue, a modular crusher gear that is easy to install was designed to overcome the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a combined crusher mechanical gear with a simple and reasonable structure, convenient installation and use, convenient installation, disassembly and maintenance, reduced maintenance and use costs, and greatly improved work efficiency.

[0005] This utility model is achieved through the following technical solution: a modular crusher mechanical tooth that is easy to install, including a tooth head and a tooth base. One side of the tooth base is a welding surface for welding the tooth base onto the crusher. The upper part of the other side of the tooth base is recessed inward to form an assembly groove with an open top for placing the tooth head. A first positioning through hole is formed vertically through the entire tooth base directly below the assembly groove on the tooth base, and a second positioning through hole is formed vertically through the entire tooth head on the tooth head. The tooth head is installed in the assembly groove, and its first positioning through hole and second positioning through hole are connected. A long-headed bolt is used to sequentially pass through the second positioning through hole and the first positioning through hole to install a nut to fix it, ensuring the overall stability after installation.

[0006] Preferably, the tooth head has a positioning protrusion on its bottom surface and a positioning groove corresponding to the positioning protrusion on the tooth base. After the tooth head is installed in the mounting groove, it is positioned by inserting the positioning protrusion into the positioning groove, which facilitates the overall installation.

[0007] Preferably, the tooth tip is curved upwards on the side away from the tooth base welding surface to form a sharp-angled working head, which is used to improve the crushing effect of the tooth tip.

[0008] Preferably, the tooth tip is raised upward on the side away from the welding surface of the tooth base to form a protrusion. An oblique placement groove is provided on the protrusion, and a hard alloy block is embedded and welded into the placement groove to improve the strength of the tooth tip, thereby improving the crushing effect.

[0009] Preferably, the welding surface of the tooth holder is a concave arc-shaped welding surface, which is used to increase the welding area and thus ensure the welding effect.

[0010] Preferably, the lower part of the tooth seat on the side away from the welding surface is recessed inward to form a slope surface. This slope surface is used to reduce the overall volume of the tooth seat and facilitate the installation of long head bolts.

[0011] Preferably, the tooth holder has multiple reinforcing protrusions on its side to improve the overall strength of the tooth holder's side surface.

[0012] Preferably, the tooth is made of alloy steel.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model designs an easy-to-install modular crusher gear. The gear head uses a high-strength, high-wear-resistant alloy steel blade-shaped gear head (or alloy steel + partially blocky hard alloy) instead of a single expensive hard alloy block. This results in better and more stable cutting performance, overcoming the problem of frequent gear head replacements due to alloy breakage or structural damage caused by technical deficiencies, thus significantly reducing operating costs. The gear head and gear seat are fixed with long-head bolts via a connecting positioning hole, ensuring good stability and convenient installation and disassembly. A raised positioning protrusion is provided at the bottom of the gear head for quick positioning and installation, ensuring stability after installation. This utility model has a reasonable overall structure, good robustness, and is easy to use and install. The overall gear head structure is robust, highly impact-resistant, and highly wear-resistant, thereby greatly improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the first structure of this utility model.

[0016] Figure 2 This is a front view of the first structure of this utility model.

[0017] Figure 3 This is a side view of the first structure of this utility model.

[0018] Figure 4 This is a cross-sectional view of the second structure of this utility model.

[0019] Figure 5 This is a front view of the second structure of this utility model.

[0020] Figure 6 This is a side view of the second structure of this utility model. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1-3 As shown, a modular crusher gear that is easy to install includes a tooth head 1 and a tooth base 2. One side of the tooth base 2 is a welding surface 3, used to weld the tooth base 2 onto the crusher. The upper part of the other side of the tooth base 2 is recessed inward to form an assembly groove 4 with an open top for placing the tooth head 1. A first positioning through hole 5 is opened vertically through the entire tooth base 2 directly below the assembly groove 4, and a second positioning through hole 6 is opened vertically through the entire tooth head 1. The tooth head 1 is installed in the assembly groove 4, and its first positioning through hole 5 and second positioning through hole 6 are connected. A long-headed bolt is used to sequentially pass through the second positioning through hole 6 and the first positioning through hole 5 to install a nut to fix it, ensuring the overall stability after installation.

[0024] The tooth head 1 has a positioning protrusion 7 on its bottom surface, and a positioning groove 8 corresponding to the positioning protrusion 7 is formed on the tooth base 2. After the tooth head 1 is installed in the assembly groove 4, it is positioned by inserting the positioning protrusion 7 into the positioning groove 8, which facilitates the overall installation. The side of the tooth head 1 away from the welding surface 3 of the tooth base is raised upward to form a sharp-angled working head 9, which is used to improve the crushing effect of the tooth head 1.

[0025] like Figure 4-6As shown in Figure 5, the tooth head 1, on the side away from the welding surface 3 of the tooth base, curves upward to form a protrusion 10. An oblique placement groove 11 is formed on the protrusion 10, and a hard alloy block 12 is embedded and welded into the placement groove 11 to improve the strength of the tooth head 1, thereby improving the material crushing effect. The welding surface 3 of the tooth base 2 is a concave arc-shaped welding surface to increase the welding area and ensure welding effect. The lower part of the tooth base 2 on the side away from the welding surface 3 is recessed inward to form a slope surface 13. This slope surface 13 is used to reduce the overall volume of the tooth base and facilitate the installation of long-head bolts. Multiple reinforcing protrusions 14 are provided on the side of the tooth base 2 to improve the overall strength of the side surface of the tooth base 2. The tooth head 1 is made of alloy steel.

[0026] This utility model designs an easy-to-install modular crusher gear. The gear head uses a high-strength, high-wear-resistant alloy steel blade-shaped gear head (or alloy steel + partially blocky hard alloy) instead of a single expensive hard alloy block. This results in better and more stable cutting performance, overcoming the problem of frequent gear head replacements due to alloy breakage or structural damage caused by technical deficiencies, thus significantly reducing operating costs. The gear head and gear seat are fixed with long-head bolts via a connecting positioning hole, ensuring good stability and convenient installation and disassembly. A raised positioning protrusion is provided at the bottom of the gear head for quick positioning and installation, ensuring stability after installation. This utility model has a reasonable overall structure, good robustness, and is easy to use and install. The overall gear head structure is robust, highly impact-resistant, and highly wear-resistant, thereby greatly improving work efficiency.

[0027] 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 modular crusher gear that is easy to install, comprising a gear head (1) and a gear seat (2), characterized in that: One side of the tooth base (2) is a welding surface (3) for welding the tooth base (2) onto the crusher. The upper part of the other side of the tooth base (2) is recessed inward to form an assembly groove (4) with an open top for placing the tooth head (1). A first positioning through hole (5) is opened vertically through the entire tooth base (2) directly below the assembly groove (4), and a second positioning through hole (6) is opened vertically through the entire tooth head (1). The tooth head (1) is installed in the assembly groove (4), and its first positioning through hole (5) is connected to the second positioning through hole (6). The long-headed bolt passes through the second positioning through hole (6) and the first positioning through hole (5) in sequence, and the nut is installed to fix it to ensure the overall stability after installation.

2. The easily installable combined crusher mechanical gear according to claim 1, characterized in that: The tooth head (1) is provided with a positioning protrusion (7) on its bottom surface, and a positioning groove (8) corresponding to the positioning protrusion (7) is provided on the tooth seat (2). After the tooth head (1) is installed in the assembly groove (4), it is positioned by inserting the positioning protrusion (7) into the positioning groove (8), which facilitates the overall installation.

3. The easily installable combined crusher mechanical gear according to claim 2, characterized in that: The tooth (1) is raised upward on the side away from the tooth seat welding surface (3) to form a sharp-angled working head (9), which is used to improve the crushing effect of the tooth (1).

4. The easily installable combined crusher mechanical gear according to claim 2, characterized in that: The tooth (1) is raised upward on the side away from the tooth base welding surface (3) to form a protrusion (10). An oblique placement groove (11) is provided on the protrusion (10). A hard alloy block (12) is embedded and welded in the placement groove (11) to improve the strength of the tooth (1) and thus improve the crushing effect.

5. The easily installable combined crusher mechanical gear according to claim 3 or 4, characterized in that: The welding surface (3) of the tooth seat (2) is a concave arc-shaped welding surface, which is used to increase the welding area and thus ensure the welding effect.

6. The easily installable combined crusher mechanical gear according to claim 5, characterized in that: The tooth seat (2) is recessed inward on the side away from the welding surface (3) to form a slope surface (13). This slope surface (13) is used to reduce the overall volume of the tooth seat and facilitate the installation of long head bolts.

7. The easily installable combined crusher mechanical gear according to claim 6, characterized in that: Multiple reinforcing protrusions (14) are provided on the side of the tooth holder (2) to improve the overall strength of the side of the tooth holder (2).

8. The easily installable combined crusher mechanical gear according to claim 3 or 4, characterized in that: The tooth (1) is made of alloy steel.