Multifunctional excavator bucket structure for tunnel construction

CN224859535UActive Publication Date: 2026-10-16FUJIAN SAIBANG CONSTR ENG CO LTD
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Patent Information

Application Number
CN202522052707.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-10-16
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

[0003]现有的一种隧道施工用多功能挖掘机铲斗结构,在工作人员对铲斗进行实际的操作和使用时,容易因铲斗的铲齿是固定的不便于工作人员对不同铲齿的铲斗进行便捷的安装和拆卸

Benefits of technology

[0016] This invention forms a rigid support frame by setting a limiting support plate connected to the rear end of the housing and the main bucket plate, which evenly transmits the digging reaction force to the bucket body, avoiding local stress concentration. The main bucket plate is responsible for the main excavation, while the auxiliary bucket plate is finely adjusted by contacting the bucket teeth at the rear end. The cutting angle can be dynamically changed according to the hardness of the rock strata. This dual-plate linkage mechanism can not only cope with the rapid stripping of soft soil layers, but also handle the strong crushing of hard rock layers, increasing the overall convenience of operation and use of the equipment.

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Abstract

The utility model relates to excavator shovel technical field discloses a kind of multifunctional excavator shovel structures for tunnel construction, including shovel body, the top of the shovel body is fixedly connected with installation vertical plate, the inside of the installation vertical plate is equipped with locating hole, the left end of the installation vertical plate is fixedly connected with installation support ring;The front of the shovel body is fixedly connected with shovel tooth, the front of the shovel tooth is clamped with installation shell.The utility model forms rigid support frame by setting the limiting support plate connected with the installation shell rear end and main shovel plate, excavating reaction force is evenly conducted to shovel body, avoid local stress concentration, by setting main shovel plate is responsible for main excavation, and the contact of rear end and shovel tooth is realized by adjusting through vice shovel plate, can be according to rock hardness dynamic change cutting angle, this double-plate linkage mechanism can not only cope with soft soil layer rapid stripping, but also can handle hard rock layer's strong power crushing, increase the convenience of equipment overall actual operation and use.
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Description

Technical Field

[0001] This utility model relates to the field of excavator bucket technology, and in particular to a multi-functional excavator bucket structure for tunnel construction. Background Technology

[0002] The excavator bucket is a core working component used for digging and loading materials such as soil and rock. It is welded together from components such as the tooth base plate, bottom plate, and side plates. The bucket refers to the bucket installed on the excavator, also called the digging bucket. According to the working method, it is divided into backhoe buckets and front shovel buckets, with backhoe buckets being more commonly used. Bucket classification and function: According to materials, buckets are divided into standard buckets, reinforced buckets, and rock buckets. Bucket structure: Buckets belong to the category of structural components. The excavator bucket is a core structural component of the excavator, welded together from components such as the tooth base plate, bottom plate, side plates, wall plates, and lug plates. It is mainly divided into two categories: backhoe buckets and front shovel buckets. Its welding quality directly affects the structural strength and service life.

[0003] An existing multi-functional excavator bucket structure for tunnel construction has a problem: the bucket teeth are fixed, making it inconvenient for workers to easily install and disassemble buckets with different teeth. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a multi-functional excavator bucket structure for tunnel construction.

[0005] This utility model is achieved by the following technical solution: a multi-functional excavator bucket structure for tunnel construction, including a bucket body, a mounting plate fixedly connected to the top of the bucket body, a positioning hole opened inside the mounting plate, and a mounting support ring fixedly connected to the left end of the mounting plate;

[0006] The front of the bucket body is fixedly connected to bucket teeth, the front of the bucket teeth is engaged with a mounting shell, the rear end of the mounting shell is fixedly connected to a limiting support plate, the front of the limiting support plate is fixedly connected to a main bucket plate, the front of the bucket teeth is engaged with a secondary bucket plate, and the bottom of the bucket body is fixedly connected to a reinforcing support rod.

[0007] Through the above technical solution, the two mounting plates on the top of the bucket body are symmetrically distributed in a central manner, and the positioning holes inside can be precisely matched with the quick connector of the excavator attachments to realize the quick change and positioning of the bucket.

[0008] As a further improvement to the above solution, the number of mounting plates is set to two, and the two mounting plates are symmetrically distributed on the left and right sides with the bucket body as the center, and the mounting support ring is located on the top of the bucket body.

[0009] As a further improvement to the above solution, the number of positioning holes and mounting rings is set to several, and the several positioning holes and mounting rings are symmetrically distributed around the bucket body.

[0010] The above technical solution uses the support ring as an auxiliary hoisting interface, which not only facilitates loading and unloading operations, but also provides a force support point for on-site adjustments. The standardized interface design allows the bucket to be adapted to different models of excavators, improving the equipment's versatility and construction flexibility.

[0011] As a further improvement to the above solution, the number of bucket teeth and mounting shells is set to three, and the three bucket teeth and mounting shells are equidistantly distributed with the bucket body as the center.

[0012] Through the above technical solution, multiple equidistant bucket teeth form a triangular cutting array, and each bucket tooth is fitted with a shell to form a protective cover, effectively preventing tooth tip breakage caused by rock collision.

[0013] As a further improvement to the above scheme, the surface of the auxiliary bucket plate is in contact with the surface of the main bucket plate, the rear end of the auxiliary bucket plate is in contact with the front surface of the bucket teeth, and the rear end of the main bucket plate is in contact with the front surface of the bucket teeth.

[0014] As a further improvement to the above scheme, the number of the limiting support plate and the main bucket plate is set to two, and the two limiting support plates and the main bucket plate are symmetrically distributed on the left and right sides with the bucket body as the center.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention forms a rigid support frame by setting a limiting support plate connected to the rear end of the housing and the main bucket plate, which evenly transmits the digging reaction force to the bucket body, avoiding local stress concentration. The main bucket plate is responsible for the main excavation, while the auxiliary bucket plate is finely adjusted by contacting the bucket teeth at the rear end. The cutting angle can be dynamically changed according to the hardness of the rock strata. This dual-plate linkage mechanism can not only cope with the rapid stripping of soft soil layers, but also handle the strong crushing of hard rock layers, increasing the overall convenience of operation and use of the equipment.

[0017] This utility model significantly improves the overall rigidity of the bucket by setting up a triangular truss structure with a reinforcing support rod welded to the bottom of the bucket body. Under the lateral compression load commonly seen in tunnel construction, the reinforcing support rod can disperse the external force to the entire bottom surface of the bucket, effectively suppressing bucket deformation. The symmetrical distribution design of the main bucket plate and the limiting support plate further balances the force on both sides, ensuring that the deformation is controllable under long-term high-intensity operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the side anatomical structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0021] Figure 4 This is a schematic diagram of the right-side structure of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Bucket body; 2. Mounting plate; 3. Positioning hole; 4. Mounting support ring; 5. Bucket teeth; 6. Mounting shell; 7. Limiting support plate; 8. Main bucket plate; 9. Secondary bucket plate; 10. Reinforcing support rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example:

[0026] Please combine Figure 1-4 The embodiment of the multi-functional excavator bucket structure for tunnel construction includes a bucket body 1, a mounting plate 2 fixedly connected to the top of the bucket body 1, a positioning hole 3 opened inside the mounting plate 2, and a mounting support ring 4 fixedly connected to the left end of the mounting plate 2.

[0027] The bucket body 1 is fixedly connected to the front of the bucket teeth 5, and the front of the bucket teeth 5 is engaged with the mounting shell 6. The rear end of the mounting shell 6 is fixedly connected to the limiting support plate 7, the front of the limiting support plate 7 is fixedly connected to the main bucket plate 8, and the front of the bucket teeth 5 is engaged with the auxiliary bucket plate 9. The bottom of the bucket body 1 is fixedly connected to the reinforcing support rod 10. By setting the limiting support plate 7 connected to the rear end of the mounting shell 6 and the main bucket plate 8 to form a rigid support frame, the digging reaction force is evenly transmitted to the bucket body 1, avoiding local stress concentration. The main bucket plate 8 is responsible for the main excavation, and the auxiliary bucket plate 9 is fine-tuned by contacting the bucket teeth 5 at the rear end. The cutting angle can be dynamically changed according to the hardness of the rock layer. This dual-plate linkage mechanism can not only cope with the rapid stripping of soft soil layers, but also handle the strong crushing of hard rock layers, increasing the overall convenience of operation and use of the equipment.

[0028] The two mounting plates 2 on the top of the bucket body 1 are symmetrically distributed around the center, and the positioning holes 3 inside them can be precisely matched with the quick connector of the excavator attachments to realize the quick change and positioning of the bucket.

[0029] The number of mounting plates 2 is set to two, and the two mounting plates 2 are symmetrically distributed on the left and right sides with the bucket body 1 as the center. The mounting support ring 4 is located on the top of the bucket body 1.

[0030] The number of positioning holes 3 and mounting rings 4 is set to a certain number, and the positioning holes 3 and mounting rings 4 are symmetrically distributed around the bucket body 1.

[0031] Installing support ring 4 as an auxiliary hoisting interface facilitates loading and unloading operations and provides a force support point for on-site adjustments. The standardized interface design allows the bucket to be adapted to different models of excavators, improving the equipment's versatility and construction flexibility.

[0032] The number of bucket teeth 5 and mounting shell 6 is set to three, and the three bucket teeth 5 and mounting shell 6 are equidistantly distributed with the bucket body 1 as the center.

[0033] Multiple equidistant bucket teeth 5 form a triangular cutting array. Each bucket tooth 5 is snapped into a housing 6 to form a protective cover, effectively preventing tooth tip breakage caused by rock collision.

[0034] The surface of the auxiliary bucket plate 9 is in contact with the surface of the main bucket plate 8, the rear end of the auxiliary bucket plate 9 is in contact with the front surface of the bucket teeth 5, and the rear end of the main bucket plate 8 is in contact with the front surface of the bucket teeth 5.

[0035] The number of limiting support plates 7 and main bucket plates 8 is set to two. The two limiting support plates 7 and main bucket plates 8 are symmetrically distributed on the left and right sides with the bucket body 1 as the center. By setting the reinforcing support rods 10 welded to the bottom of the bucket body 1, a triangular truss structure is formed, which significantly improves the overall rigidity of the bucket. Under the lateral compression load commonly seen in tunnel construction, the reinforcing support rods 10 can disperse the external force to the entire bottom surface of the bucket, effectively suppressing the deformation of the bucket. The symmetrical distribution design of the main bucket plates 8 and limiting support plates 7 further balances the forces on both sides, ensuring that the deformation is controllable under long-term high-intensity operation.

[0036] The implementation principle of the bucket structure of a multi-functional excavator for tunnel construction in this embodiment is as follows: By setting a limiting support plate 7 connected to the rear end of the housing 6 and the main bucket plate 8 to form a rigid support frame, the excavation reaction force is evenly transmitted to the bucket body 1, avoiding local stress concentration. The main bucket plate 8 is responsible for the main excavation, and the auxiliary bucket plate 9 is fine-tuned by contacting the bucket teeth 5 at the rear end. The cutting angle can be dynamically changed according to the hardness of the rock layer. This double-plate linkage mechanism can not only cope with the rapid stripping of soft soil layers, but also handle the strong crushing of hard rock layers, increasing the overall convenience of operation and use of the equipment. By setting a reinforcing support rod 10 welded to the bottom of the bucket body 1 to form a triangular truss structure, the overall rigidity of the bucket is significantly improved. Under the lateral compression load commonly seen in tunnel construction, the reinforcing support rod 10 can disperse the external force to the entire bottom surface of the bucket, effectively suppressing bucket deformation. The symmetrical distribution design of the main bucket plate 8 and the limiting support plate 7 further balances the force on both sides, ensuring that the deformation under long-term high-intensity operation is controllable.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A multi-functional excavator bucket structure for tunnel construction, characterized in that, Includes a bucket body (1), the top of which is fixedly connected to a mounting plate (2), the mounting plate (2) has a positioning hole (3) inside, and the left end of the mounting plate (2) is fixedly connected to a mounting support ring (4). The front of the bucket body (1) is fixedly connected to the bucket teeth (5), the front of the bucket teeth (5) is snapped with the mounting shell (6), the rear end of the mounting shell (6) is fixedly connected to the limiting support plate (7), the front of the limiting support plate (7) is fixedly connected to the main bucket plate (8), the front of the bucket teeth (5) is snapped with the auxiliary bucket plate (9), and the bottom of the bucket body (1) is fixedly connected to the reinforcing support rod (10).

2. The multi-functional excavator bucket structure for tunnel construction as described in claim 1, characterized in that: The number of mounting plates (2) is set to two, and the two mounting plates (2) are symmetrically distributed on the left and right sides with the bucket body (1) as the center. The mounting support ring (4) is located on the top of the bucket body (1).

3. The multi-functional excavator bucket structure for tunnel construction as described in claim 1, characterized in that: The number of positioning holes (3) and mounting rings (4) is set to several, and the several positioning holes (3) and mounting rings (4) are symmetrically distributed around the bucket body (1).

4. The multi-functional excavator bucket structure for tunnel construction as described in claim 1, characterized in that: The number of bucket teeth (5) and mounting shells (6) is set to three, and the three bucket teeth (5) and mounting shells (6) are equidistantly distributed around the bucket body (1).

5. The multi-functional excavator bucket structure for tunnel construction as described in claim 1, characterized in that: The surface of the auxiliary bucket plate (9) is in contact with the surface of the main bucket plate (8), the rear end of the auxiliary bucket plate (9) is in contact with the front surface of the bucket teeth (5), and the rear end of the main bucket plate (8) is in contact with the front surface of the bucket teeth (5).

6. The multi-functional excavator bucket structure for tunnel construction as described in claim 1, characterized in that: The number of the limiting support plate (7) and the main bucket plate (8) is set to two, and the two limiting support plates (7) and the main bucket plate (8) are symmetrically distributed on the left and right sides with the bucket body (1) as the center.