Multi-track stump crushing and grinding cutter

Abstract

The utility model provides a multi-track stump crushing and grinding cutter, which relates to the technical field of garden and forestry mechanical equipment and comprises a cutter body, a first cutting edge and a fourth cutting edge are arranged at the top of the cutter body, and a second cutting edge and a third cutting edge are arranged on the side face of the cutter body. The first cutting edge, the second cutting edge, the third cutting edge and the fourth cutting edge are all composed of high-quality alloy steel brazed hard alloy, a mounting face is arranged on the back of the tool body, and threaded holes are formed in the mounting face. The first cutting edge, the second cutting edge, the third cutting edge and the fourth cutting edge are arranged on the top and the side face of the cutter body, the radial and axial multi-track crushing and grinding functions are achieved, the number of working tracks of the cutter is increased, the stump crushing efficiency is remarkably improved, and especially the first cutting edge and the fourth cutting edge which are distributed in the axial direction can effectively improve the stump crushing efficiency. Stumps can be effectively crushed, the side face of the cutter head can be protected against abrasion, and the service life of the cutter head is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of garden and forestry machinery and equipment technology, and in particular to a multi-track tree stump crushing and grinding tool. Background Technology

[0002] After trees are felled, tree stumps are left in their original locations, making stump crushing an important task. Due to the diverse terrain where trees are planted, especially in rugged mountain forests and ravines where large machinery cannot access the area, and some stumps may even be buried by hard soil such as gravel and sand, small portable stump grinding and crushing machines have emerged to meet this need.

[0003] In existing technologies, most tree stump grinding and crushing machine blades are used in larger equipment, and each blade has only one working trajectory. This necessitates multiple openings on the cutter head for blade installation to meet the cutting head's operational requirements. When used in smaller tree stump grinding and crushing machines, factors such as quick blade replacement, convenient transportation and carrying, overall quality control, and meeting operational needs must be considered. Clearly, while existing single-track grinding blades can meet the operational requirements, the increased number of blades inevitably increases the resistance of the cutting head, significantly impacting the overall quality control and output power of the cutting head. Furthermore, the blade replacement cycle becomes longer during on-site operation, affecting work efficiency and portability. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that each tool has only one working trajectory, requiring multiple openings on the cutter head for tool installation to meet the working requirements of the cutter head. Therefore, a multi-track tree stump crushing and grinding tool is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-track tree stump crushing and grinding tool, comprising a tool body, wherein the top of the tool body is provided with a cutting edge one and a cutting edge four, and the side of the tool body is provided with a cutting edge two and a cutting edge three, wherein the cutting edge one, the cutting edge two, the cutting edge three and the cutting edge four are all composed of high-quality alloy steel brazed with cemented carbide, and the back of the tool body is provided with a mounting surface, wherein the mounting surface is provided with a threaded hole.

[0006] Preferably, the first and fourth cutting edges are distributed in the axial direction of the tool body.

[0007] Preferably, the second and third cutting edges are distributed in the radial direction of the tool body.

[0008] Preferably, the cemented carbide cutting edge of the tool body adopts a design with a pointed edge and a concave center.

[0009] Preferably, the working cutting edge of the cutter body adopts a tapered design with a larger top and a smaller bottom.

[0010] Preferably, the mounting surface is designed with an angle.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by setting cutting edge one, cutting edge two, cutting edge three and cutting edge four on the top and side of the tool body, the radial and axial multi-track crushing and grinding function is realized, which increases the number of working tracks of the tool and significantly improves the efficiency of tree stump crushing. In particular, the axially distributed cutting edge one and cutting edge four can not only effectively crush tree stumps, but also protect the side of the cutter head from wear and extend the service life of the cutter head.

[0013] 2. In this utility model, by adopting a high-quality alloy steel brazed with cemented carbide cutting edge design, combined with the structure of a pointed edge and a concave center, the tool is ensured to have sufficient sharpness and cutting effect when breaking tree stumps. At the same time, the top of the tool adopts a tapered design with a large top and a small bottom, so that the top of the blade always contacts the breaking surface of the tree stump, protecting the non-carbide tool body behind it, reducing tool wear and replacement frequency. In addition, the inclined mounting surface design facilitates the installation of locking wedges and allows for adjustment of the spacing, making it easy to position and tighten the bolts with the bottom threaded holes, thus improving the convenience and stability of installation. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a multi-track tree stump crushing and grinding tool is provided for this utility model;

[0015] Figure 2 A cross-sectional view of a multi-track tree stump crushing and grinding tool is provided for this utility model;

[0016] Figure 3 A side view of a multi-track tree stump crushing and grinding tool is presented for this utility model.

[0017] Legend: 1. Tool body; 101. Cutting edge one; 102. Cutting edge two; 103. Cutting edge three; 104. Cutting edge four; 105. Mounting surface; 106. Threaded hole. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1: As Figures 1-3 As shown, this utility model provides a technical solution: a multi-track tree stump crushing and grinding tool, including a tool body 1. The top of the tool body 1 is provided with a first cutting edge 101 and a fourth cutting edge 104, and the side of the tool body 1 is provided with a second cutting edge 102 and a third cutting edge 103. The first cutting edge 101, the second cutting edge 102, the third cutting edge 103 and the fourth cutting edge 104 are all composed of high-quality alloy steel brazed with cemented carbide. The back of the tool body 1 is provided with a mounting surface 105, and the mounting surface 105 is provided with a threaded hole 106. The first cutting edge 101 and the fourth cutting edge 104 are distributed in the axial direction of the tool body 1, and the second cutting edge 102 and the third cutting edge 103 are distributed in the radial direction of the tool body 1. The cemented carbide of the cutting edge of the tool body 1 adopts an edge-pointed top and a central concave surface design. The working cutting edge of the tool body 1 adopts a tapered design with a large top and a small bottom. The mounting surface 105 is a beveled design.

[0021] In this embodiment, by using cutting edges 101, 102, 103, and 104 on the top and sides of the tool body 1, a multi-track crushing and grinding function in both radial and axial directions is achieved. This increases the number of working tracks of the tool and significantly improves the efficiency of tree stump crushing. In particular, the axially distributed cutting edges 101 and 104 can not only effectively crush tree stumps but also protect the sides of the cutter head from wear, extending the service life of the cutter head. By using a high-quality alloy steel brazed with cemented carbide cutting edge design, combined with the structure of a pointed edge and a concave center, the tool is ensured to have sufficient sharpness and cutting effect when crushing tree stumps. At the same time, the top of the tool adopts a tapered design with a large top and a small bottom, so that the top of the cutting edge always contacts the crushing surface of the tree stump, protecting the non-carbide tool body behind it and reducing the wear and replacement frequency of the tool. In addition, the inclined mounting surface 105 facilitates the installation of locking wedges and allows for adjustment of the spacing, making it easy to position and tighten the bolts with the bottom threaded holes 106, improving the convenience and stability of installation.

[0022] The working principle of this embodiment is as follows: When using this multi-track tree stump crushing and grinding tool, the tool is first installed and fixed by using a locking wedge block and a bottom threaded hole 106 through the mounting surface 105 with a beveled back design. After installation, the tool moves with the equipment. When crushing and grinding the tree stump, the cutting edges 101 and 104 axially distributed on the top of the tool body 1, and the cutting edges 102 and 103 radially distributed on the side work simultaneously. Cutting edges 101 and 104 crush the tree stump axially, which not only crushes the tree stump but also protects the side of the cutter head. Cutting edges 102 and 103 cut and crush the tree stump radially. Since these cutting edges are all composed of high-quality alloy steel brazed with cemented carbide, and the cemented carbide edge has a pointed edge and concave center design, it can effectively cut into the tree stump. At the same time, the tapered design of the working edge of the tool body 1, which is large at the top and small at the bottom, ensures that the top of the edge is always in contact with the crushing surface of the tree stump, and the crushing and grinding work continues until the tree stump is crushed and ground to a suitable degree.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-track tree stump crushing and grinding tool, comprising a tool body (1), characterized in that: The top of the tool body (1) is provided with cutting edge one (101) and cutting edge four (104), and the side of the tool body (1) is provided with cutting edge two (102) and cutting edge three (103). Cutting edge one (101), cutting edge two (102), cutting edge three (103) and cutting edge four (104) are all made of high-quality alloy steel brazed with cemented carbide. The back of the tool body (1) is provided with mounting surface (105), and the mounting surface (105) is provided with threaded hole (106).

2. The multi-track tree stump crushing and grinding tool according to claim 1, characterized in that: The first cutting edge (101) and the fourth cutting edge (104) are distributed in the axial direction of the tool body (1).

3. The multi-track tree stump crushing and grinding tool according to claim 1, characterized in that: The second cutting edge (102) and the third cutting edge (103) are distributed in the radial direction of the tool body (1).

4. The multi-track tree stump crushing and grinding tool according to claim 1, characterized in that: The cutting body (1) of the tool features a carbide edge with a pointed top and a concave center.

5. The multi-track tree stump crushing and grinding tool according to claim 1, characterized in that: The working blade of the cutter body (1) adopts a tapered design with a large top and a small bottom.

6. The multi-track tree stump crushing and grinding tool according to claim 1, characterized in that: The mounting surface (105) is designed with an angle.

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