Improved excavator bucket tooth

Abstract

The utility model discloses an improved excavator bucket tooth which comprises a base tooth and a bucket tooth, the base tooth is fixedly installed on a bucket, a trapezoidal plug is installed on the base tooth, a plug-in through groove matched with the plug in shape is formed in the bucket tooth, the plug is inserted in the plug-in through groove, and the base tooth and the bucket tooth are fixedly installed on the base tooth. A positioning block is connected to the base tooth in a sliding mode, the positioning end of the positioning block is used for positioning the bucket tooth, and the wedge-shaped end of the positioning block is used for disassembling the bucket tooth. The bucket tooth has the advantages that a positioning pin connecting structure of the bucket tooth is omitted, the phenomenon that the bucket tooth cannot be detached due to stress deformation of a positioning pin is avoided, meanwhile, the movably-connected positioning block assembly is designed, the positioning block can achieve the positioning function and also has the function of rapidly detaching the bucket tooth, and the bucket tooth can be detached rapidly. The bucket tooth dismounting device is worthy of popularization and application.

Description

Technical field:

[0001] The utility model relates to the technical field of excavator parts, in particular to an improved excavator bucket tooth. Background technology:

[0002] An excavator is a commonly used engineering machinery and mining machinery. When performing excavation and loading operations, the bucket of the excavator is a mechanism for performing excavation and loading operations. During the operation, the bucket plays the role of cutting and loading materials. Due to the harsh working environment, the bucket is not only subjected to very complex forces, but also needs to withstand huge wear. For this reason, the excavator bucket teeth need to be replaced regularly. The bucket teeth in the prior art usually include base teeth and bucket teeth. The base teeth are fixedly welded on the bucket, and a plug-in groove is provided on the bucket teeth. A plug is provided on the base teeth. During installation, the plug is inserted into the plug-in groove and is positioned and fixed by a positioning pin. Since the bucket teeth are subjected to huge and complex forces, the pins in the bucket teeth are easily deformed, resulting in the pins being unable to be pulled out when the bucket teeth are disassembled. The disassembly is time-consuming and labor-intensive, and the work efficiency is low. Utility model content:

[0003] The utility model aims to provide an improved excavator bucket tooth to solve the technical problems in the prior art that the bucket tooth is difficult to disassemble and the disassembly is time-consuming and labor-intensive.

[0004] The content of the utility model: an improved excavator bucket tooth, which comprises a base tooth and a bucket tooth, wherein the base tooth is fixedly mounted on the bucket, a trapezoidal plug is mounted on the base tooth, a plug-in slot matching the shape of the plug is provided on the bucket tooth, the plug is plugged into the plug-in slot, a positioning block is slidably connected to the base tooth, the positioning end of the positioning block is used to position the bucket tooth, and the wedge-shaped end of the positioning block is used to disassemble the bucket tooth.

[0005] Furthermore, a slide groove is provided on the plug, the positioning block is slidably inserted in the slide groove, a positioning groove matching the positioning block is provided on the end surface of the bucket tooth, and the positioning end of the positioning block is inserted in the positioning groove.

[0006] Furthermore, a first magnet sheet is installed at the positioning end of the positioning block.

[0007] Furthermore, a disassembly through groove is provided on the base tooth, the disassembly through groove is communicated with the slide groove, and the wedge-shaped end of the positioning block is located in the disassembly through groove.

[0008] Furthermore, a second magnet sheet is installed on the inner wall of the disassembly slot, and the second magnet sheet is used for magnetically adsorbing the positioning block.

[0009] Furthermore, both ends of the disassembly slot are plugged with rubber plugs.

[0010] Furthermore, it also includes a disassembly pestle, which is used to be inserted into the disassembly through groove, and a wedge-shaped surface adapted to the wedge-shaped end of the positioning block is arranged at the bottom end of the disassembly pestle.

[0011] The beneficial effects of the utility model are as follows: the utility model eliminates the locating pin connection structure of the bucket tooth, thus avoiding the phenomenon that the bucket tooth cannot be disassembled due to deformation of the locating pin under force, and at the same time designs a movably connected locating block assembly, which can realize the locating function and has the function of quickly disassembling the bucket tooth, thereby improving the disassembly efficiency of the bucket tooth, and is worthy of popularization and use. Description of the drawings:

[0012] Figure 1 A three-dimensional diagram of the utility model in use;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 This is a stereoscopic diagram of the assembly of the base teeth and the bucket;

[0015] In the figure, base teeth 1, bucket 2, plug 3, plug-in slot 4, bucket tooth 5, positioning slot 6, positioning block 7, disassembly slot 8, first magnet sheet 9, second magnet sheet 10, rubber plug 11, and disassembly pestle 13. Specific implementation method:

[0016] like Figure 1 and 2 As shown, an improved excavator bucket tooth includes a base tooth 1 and a bucket tooth 5, wherein the base tooth 1 is fixedly mounted on a bucket 2, a trapezoidal plug 3 is mounted on the base tooth 1, a plug-in slot 4 matching the shape of the plug 3 is provided on the bucket tooth 5, the plug 3 is plugged into the plug-in slot 4 (the inclined surface of the plug 3 is tightly fitted with the inner wall of the plug-in slot 4), and a positioning block 7 is slidably connected to the base tooth 1, the positioning end of the positioning block 7 is used to position the bucket tooth 5, and the wedge-shaped end of the positioning block 7 is used to disassemble the bucket tooth 5.

[0017] like Figure 3 As shown, a slide groove is provided on the plug 3, and the positioning block 7 is slidably inserted in the slide groove. A positioning groove 6 matching the positioning block 7 is provided on the end surface of the bucket tooth 5, and the positioning end of the positioning block 7 is inserted in the positioning groove 6. The depth of the positioning block 7 inserted into the positioning groove 6 is less than 15 mm. The smaller insertion depth can effectively prevent the positioning block 7 from being deformed, and a first magnet sheet 9 is installed at the positioning end of the positioning block 7.

[0018] like Figure 2As shown, a disassembly groove 8 is opened on the base tooth 1, and the disassembly groove 8 is connected with the slide groove, and the wedge-shaped end of the positioning block 7 is located in the disassembly groove 8; a second magnet sheet 10 is installed on the inner wall of the disassembly groove 8, and the second magnet sheet 10 is used for magnetically adsorbing the positioning block 7; in order to prevent the disassembly groove from entering the debris, rubber plugs 11 are plugged at both ends of the disassembly groove 8; it also includes a disassembly pestle 13, and the disassembly pestle 13 is used to be inserted into the disassembly groove 8, and a wedge-shaped surface adapted to the wedge-shaped end of the positioning block 7 is provided at the bottom end of the disassembly pestle 13.

[0019] When installing, Figure 2 As shown, the plug 3 is tightly inserted into the plug-in groove 4 (so that the inclined surface of the plug 3 is tightly fitted with the inner wall of the plug-in groove 4), and the positioning block 7 is inserted into the positioning groove 6 for about 10 mm, and the installation is completed. During the excavation operation, since the bucket tooth 5 is mainly subjected to inward and downward forces during use, the inward force makes the connection between the bucket tooth 5 and the base tooth 1 more and more tightly, and the downward force is mainly borne by the plug 3, so the bucket tooth 5 will not fall off at all during use. When the bucket tooth 5 needs to be replaced after being worn for a long time, the rubber plug 11 is pulled out, and the disassembly pestle 13 is chiseled into the disassembly groove 8. The wedge-shaped surface of the disassembly pestle 13 is fitted with the wedge-shaped end of the positioning block 7, and the positioning block 7 is pushed out, thereby pushing out the bucket tooth 5 or loosening it, so as to achieve quick disassembly.

[0020] Since the above are only preferred examples of the present invention and are not intended to limit the present invention, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved excavator bucket tooth, comprising a base tooth (1) and a bucket tooth (5), wherein the base tooth (1) is fixedly mounted on a bucket (2), and characterized in that: A trapezoidal plug (3) is mounted on the base tooth (1), a plug-in slot (4) matching the shape of the plug (3) is provided on the bucket tooth (5), the plug (3) is plugged into the plug-in slot (4), a positioning block (7) is slidably connected to the base tooth (1), a positioning end of the positioning block (7) is used to position the bucket tooth (5), and a wedge-shaped end of the positioning block (7) is used to disassemble the bucket tooth (5).

2. An improved excavator bucket tooth according to claim 1, characterized in that: A slide groove is provided on the plug (3), the positioning block (7) is slidably inserted in the slide groove, a positioning groove (6) matching the positioning block (7) is provided on the end surface of the bucket tooth (5), and the positioning end of the positioning block (7) is inserted in the positioning groove (6).

3. An improved excavator bucket tooth according to claim 2, characterized in that: A first magnet piece (9) is installed at the positioning end of the positioning block (7).

4. An improved excavator bucket tooth according to claim 2, characterized in that: A disassembly through groove (8) is provided on the base tooth (1), the disassembly through groove (8) is connected to the slide groove, and the wedge-shaped end of the positioning block (7) is located in the disassembly through groove (8).

5. An improved excavator bucket tooth according to claim 4, characterized in that: A second magnet sheet (10) is installed on the inner wall of the disassembly slot (8), and the second magnet sheet (10) is used to magnetically attract the positioning block (7).

6. An improved excavator bucket tooth according to claim 5, characterized in that: Both ends of the disassembly slot (8) are plugged with rubber plugs (11).

7. An improved excavator bucket tooth according to claim 4, characterized in that: It also includes a disassembly pestle (13), which is used to be inserted into the disassembly slot (8), and a wedge-shaped surface adapted to the wedge-shaped end of the positioning block (7) is arranged at the bottom end of the disassembly pestle (13).

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