Excavator bucket with bucket tooth spacing adjusting function

By designing a screw and a limit groove with opposite thread directions on the screw surface on the bucket, the problem of inaccurate bucket tooth spacing adjustment in the existing technology is solved, the bucket tooth spacing is accurately adjusted, and the working efficiency of the excavator is improved.

CN223386700UActive Publication Date: 2025-09-26QINGDAO HAIZHICHENG MASCH TECH CO LTD
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Patent Information

Application Number
CN202422865650.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-09-26
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

When adjusting the tooth spacing of the existing bucket, the screw drives all the bucket teeth to move, resulting in only changing the position of the middle bucket teeth and being unable to accurately adjust the tooth spacing.

Method used

The design of opposite thread directions on the screw surface is adopted. The adjusting block is driven to move by rotating the screw. Combined with the limit groove and positioning block, the bucket tooth position can be accurately adjusted. The limit block and positioning groove are used to limit and position the screw.

Benefits of technology

The precise adjustment of bucket tooth spacing is achieved, which improves the working efficiency and application range of the excavator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of buckets, and discloses an excavator bucket with a bucket tooth spacing adjusting function, which comprises an excavator bucket shell, a bucket tooth spacing adjusting device, a bucket tooth spacing adjusting device and a bucket tooth spacing adjusting device, and is characterized in that bucket teeth are uniformly distributed on the left side of the excavator bucket shell; the screw rod is arranged at the bottom of the excavator bucket shell, the directions of threads on the two sides of the surface of the screw rod are opposite, and the surface of the screw rod is rotationally connected with an adjusting block; the connecting plates are arranged on the surfaces of the bucket teeth, the connecting plates are connected with the surfaces of the adjusting blocks, and the adjusting blocks located on the two sides are in one group and are in screwed connection with the surface of the same screw rod; and the rotating head is arranged at the right end of the screw rod, and positioning grooves are formed in the surface of the rotating head. The adjusting blocks can be driven to rotate by rotating the screw rods, the directions of threads on the surfaces of the screw rods are opposite, so that the adjusting blocks can be driven to move relatively, meanwhile, the adjusting blocks located on the two sides are connected with the same screw rod in pairs, the positions of the bucket teeth can be adjusted, and the distance between the bucket teeth can be adjusted more accurately.
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Description

Technical Field

[0001] The utility model relates to the technical field of buckets, in particular to a bucket with a function of adjusting the spacing between bucket teeth. Background Art

[0002] The bucket is an important working device of the excavator, mainly used for digging and loading loose materials such as soil, sand, and stone. The design and structure of the bucket directly affect the working efficiency and scope of application of the excavator.

[0003] A common bucket is usually welded together by a front bottom plate, two side plates and a rear bottom plate, and is used to withstand various forces generated during the excavation process. The bucket teeth are installed at the front end of the bucket body to crush and grab soil or rocks.

[0004] Bucket teeth are generally adjusted in position by a screw. The bucket teeth are installed on the surface of a screw. The threads on both sides of the screw are in opposite directions. When the screw is rotated, the bucket teeth are driven to move, thereby adjusting the spacing of the bucket teeth. However, since the screw drives all bucket teeth to move when it rotates, the bucket teeth on both sides can only change the position of the middle bucket teeth after relative movement, resulting in the inability to accurately adjust the distance between the bucket teeth. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides an excavator bucket with the function of adjusting the spacing between bucket teeth, so as to solve the problem proposed in the above background technology that the screw will drive all bucket teeth to move when it rotates, and the bucket teeth on both sides can only change the position of the middle bucket teeth after relative movement, resulting in the inability to accurately adjust the distance between the bucket teeth.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a bucket with a function of adjusting the spacing between bucket teeth, comprising:

[0009] A bucket shell, wherein bucket teeth are evenly distributed on the left side of the bucket shell;

[0010] A screw is provided at the bottom of the bucket housing, the threads on both sides of the screw surface are in opposite directions, and the surfaces of the screw are both screwed with adjustment blocks;

[0011] A connecting plate is provided on the surface of the bucket tooth, the connecting plate is connected to the surface of the adjusting block, and the adjusting blocks located on both sides are screwed to the surface of the same screw rod as a group;

[0012] The rotating head is arranged at the right end of the screw rod, and the surface of the rotating head is provided with positioning grooves.

[0013] Preferably, a limiting groove is provided at the bottom of the bucket shell, and limiting blocks are installed on the surface of the adjustment block. The limiting blocks are inserted into the limiting groove so that the bucket teeth can move linearly.

[0014] Preferably, a fixing plate is installed on the surface of the limit block, a threaded rod is screwed between the fixing plate and the connecting plate, and a threaded rod is also screwed between the limit block and the connecting plate. The connecting plate can be connected to the fixing plate and the limit block through the threaded rod, and the bucket teeth can be disassembled by taking out the threaded rod.

[0015] Preferably, a mounting edge is installed on the right side of the bottom of the bucket shell, the screws all pass through the surface of the mounting edge, ball bearings are installed on the surface of the screws, and the outer rings of the ball bearings are connected to the inner wall of the mounting edge, so that the screws can rotate stably.

[0016] Preferably, a positioning plate is provided on the right side of the mounting edge, and positioning blocks are installed on the inner wall of the positioning plate. The positioning blocks and positioning grooves are both hexagonal in design. The positioning blocks are inserted into the positioning grooves to limit the screw so that the screw does not continue to rotate.

[0017] Preferably, positioning rods are screwed on both sides of the surface of the positioning plate, and the positioning rods are screwed on the surface of the mounting edge. The positioning plate can be disassembled by removing the positioning rods, thereby exposing the positioning groove. A tool can be inserted into the positioning groove to drive the screw to rotate.

[0018] Beneficial effects

[0019] Compared with the prior art, the present invention provides a bucket with a function of adjusting the spacing between bucket teeth, which has the following beneficial effects:

[0020] The bucket with the function of adjusting the spacing between bucket teeth can drive the adjustment block to rotate by rotating the screw, and the threads on the screw surface are in opposite directions, thereby driving the adjustment block to move relative to each other. At the same time, the adjustment blocks on both sides are connected to the same screw in groups of two, so that the position of the bucket teeth can be adjusted separately, and the distance between the bucket teeth can be adjusted more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the bucket teeth of the utility model;

[0023] Figure 3 This is an exploded perspective view of the limit head and the rotating head of the utility model;

[0024] Figure 4 It is an exploded perspective view of the connecting plate of the utility model.

[0025] In the figure: 1. Bucket shell; 2. Bucket teeth; 3. Screw; 4. Adjustment block; 5. Connecting plate; 6. Rotating head; 7. Limiting groove; 8. Limiting block; 9. Fixing plate; 10. Threaded rod; 11. Ball bearing; 12. Positioning plate; 13. Positioning block; 14. Positioning groove; 15. Positioning rod; 16. Mounting edge. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides a technical solution, a bucket with the function of adjusting the spacing between bucket teeth, please refer to Figure 1 , comprising a bucket shell 1, with bucket teeth 2 evenly distributed on the left side of the bucket shell 1;

[0028] See also Figure 2 The screw 3 is provided at the bottom of the bucket housing 1, the threads on both sides of the screw 3 are in opposite directions, and the surface of the screw 3 is screwed with an adjusting block 4;

[0029] The connecting plate 5 is provided on the surface of the bucket tooth 2, and is connected to the surface of the adjusting block 4. The adjusting blocks 4 on both sides are a group and are screwed to the surface of the same screw 3;

[0030] The rotating head 6 is located at the right end of the screw 3. Figure 3 , the surface of the rotating head 6 is provided with a positioning groove 14;

[0031] The rotating screw 3 can drive the adjusting block 4 to rotate, and the thread directions on the surface of the screw 3 are opposite, thereby driving the adjusting block 4 to move relative to each other. At the same time, the adjusting blocks 4 on both sides are connected to the same screw 3 in groups of two, so that the positions of the bucket teeth 2 can be adjusted separately, and the distance between the bucket teeth 2 can be adjusted more accurately.

[0032] See also Figure 1 The bottom of the bucket shell 1 is provided with a limit slot 7, see Figure 4 The surface of the adjusting block 4 is installed with a limit block 8, and the limit block 8 is inserted into the interior of the limit groove 7, so that the bucket tooth 2 can move linearly.

[0033] A fixing plate 9 is installed on the surface of the limit block 8, and a threaded rod 10 is screwed between the fixing plate 9 and the connecting plate 5. A threaded rod 10 is also screwed between the limit block 8 and the connecting plate 5. The connecting plate 5 can be connected to the fixing plate 9 and the limit block 8 through the threaded rod 10. The bucket tooth 2 can be disassembled by taking out the threaded rod 10.

[0034] See also Figure 2 The bottom right side of the bucket housing 1 is provided with a mounting edge 16, and the screw rods 3 all penetrate the surface of the mounting edge 16. Figure 3 Ball bearings 11 are installed on the surface of the screw 3, and the outer rings of the ball bearings 11 are connected to the inner wall of the mounting edge 16, so that the screw 3 can rotate stably.

[0035] See also Figure 2 , the right side of the installation along 16 is provided with a positioning plate 12, see Figure 3 The inner wall of the positioning plate 12 is installed with a positioning block 13. The positioning block 13 and the positioning groove 14 are both hexagonal in design. The positioning block 13 is inserted into the interior of the positioning groove 14 to limit the screw 3 so that the screw 3 will not continue to rotate.

[0036] Positioning rods 15 are screwed on both sides of the surface of the positioning plate 12, and the positioning rods 15 are screwed on the surface of the mounting edge 16. The positioning rods 15 can be removed to disassemble the positioning plate 12, thereby exposing the positioning groove 14. A tool can be inserted into the positioning groove 14 to drive the screw 3 to rotate.

[0037] The working process of this device is as follows: first, the positioning rod 15 is taken out to disassemble the positioning plate 12, thereby exposing the positioning groove 14, and a tool is inserted into the positioning groove 14 to drive the screw 3 to rotate, and then rotating the screw 3 can drive the adjusting block 4 to rotate, and the thread direction of the screw 3 surface is opposite, thereby driving the adjusting block 4 to move relative to each other. At the same time, the adjusting blocks 4 on both sides are connected to the same screw 3 in groups of two, so that the position of the bucket teeth 2 can be adjusted separately, and the distance between the bucket teeth 2 can be adjusted more accurately. Finally, the positioning block 13 is inserted into the interior of the positioning groove 14 to limit the screw 3 so that the screw 3 will not continue to rotate, thereby positioning the bucket teeth 2.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bucket with a function of adjusting the spacing between bucket teeth, characterized in that: include: A bucket shell (1), wherein bucket teeth (2) are evenly distributed on the left side of the bucket shell (1); A screw rod (3) is arranged at the bottom of the bucket housing (1), the screw threads on both sides of the screw rod (3) are in opposite directions, and the surface of the screw rod (3) is screwed with an adjustment block (4); A connecting plate (5) is provided on the surface of the bucket tooth (2), the connecting plate (5) is connected to the surface of the adjusting block (4), and the adjusting blocks (4) located on both sides are a group and are screwed to the surface of the same screw (3); The rotating head (6) is arranged at the right end of the screw rod (3), and the surface of the rotating head (6) is provided with a positioning groove (14).

2. The bucket with adjustable tooth spacing according to claim 1, characterized in that: A limiting groove (7) is provided at the bottom of the bucket shell (1), and limiting blocks (8) are installed on the surface of the adjustment block (4).

3. The bucket with adjustable tooth spacing according to claim 2, characterized in that: A fixing plate (9) is installed on the surface of each of the limit blocks (8), a threaded rod (10) is screwed between each of the fixing plates (9) and the connecting plate (5), and a threaded rod (10) is also screwed between each of the limit blocks (8) and the connecting plate (5).

4. The bucket with adjustable tooth spacing according to claim 1, characterized in that: A mounting edge (16) is installed on the right side of the bottom of the bucket shell (1), and the screw rods (3) all penetrate the surface of the mounting edge (16). Ball bearings (11) are installed on the surface of the screw rods (3), and the outer rings of the ball bearings (11) are connected to the inner wall of the mounting edge (16).

5. The bucket with the function of adjusting the spacing between bucket teeth according to claim 4, characterized in that: A positioning plate (12) is provided on the right side of the installation edge (16), and positioning blocks (13) are installed on the inner wall of the positioning plate (12). The positioning blocks (13) and the positioning grooves (14) are both hexagonal in design.

6. The bucket with the function of adjusting the spacing between bucket teeth according to claim 5, characterized in that: Positioning rods (15) are screwed on both sides of the surface of the positioning plate (12), and the positioning rods (15) are screwed on the surface of the mounting edge (16).