Connecting seat for hydraulic shear of excavator

By reinforcing the ribs and plate structure in the hydraulic shear connector of the excavator and combining it with bolt and nut connections, the problem of loosening and damage of the connector under high-intensity working conditions has been solved, thus improving stability and safety.

CN223991394UActive Publication Date: 2026-03-13YANTAI AIDIORANG MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing excavator hydraulic shear connectors are prone to loosening and damage under high-intensity operating conditions, failing to meet the requirements for stability and safety.

Method used

By setting reinforcing ribs, reinforcing strips, and reinforcing plates in the connector body, the connection strength between the fixed plate, vertical plate, and connecting lugs is enhanced. Combined with the movable connection method of bolts and nuts, a stable working system is constructed.

Benefits of technology

Under high-intensity, high-frequency operating conditions, the connecting seat body maintains stability, prevents deformation, and ensures the accuracy and safety of the shearing operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of excavator accessories, and discloses a connecting seat for a hydraulic shear of an excavator, a connecting seat body consists of a fixing plate, a connecting lug, a fixing seat, a vertical plate and a transverse plate, and the connecting lug is fixedly mounted at the top of the fixing plate. According to the connecting seat for the hydraulic shear of the excavator, the strength between the fixing plate and the connecting lug can be enhanced by arranging the first reinforcing ribs, the strength between the fixing plate and the vertical plate can be enhanced by arranging the second reinforcing ribs, the stability of the whole structure is guaranteed, the strength of the vertical plate is enhanced by arranging the reinforcing strips and the reinforcing plate, and the service life of the vertical plate is prolonged. In addition, due to the existence of the transverse plate, the strength of the vertical plate is further enhanced, the stability of the connecting seat body is guaranteed in an omnibearing and multi-angle mode, the connecting seat body can stably operate for a long time in a high-strength and high-frequency operation environment, and a solid guarantee is provided for smooth development of various engineering operations.
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Description

Technical Field

[0001] This utility model relates to the field of excavator parts technology, specifically a connecting seat for excavator hydraulic shears. Background Technology

[0002] Excavator hydraulic shears are widely used in engineering operations such as building demolition and scrap metal recycling. As a key component connecting the excavator hydraulic shears to the excavator, the performance of the connecting seat directly affects the stability and reliability of the hydraulic shears' operation.

[0003] In current engineering operations, existing connectors for excavator hydraulic shears exhibit significant weaknesses in connection strength. These connectors often employ relatively simple structural designs. In high-intensity scenarios such as building demolition and scrap metal recycling, excavator hydraulic shears need to frequently and forcefully cut various hard objects. This causes the connectors to continuously bear substantial shearing forces. However, existing connector designs fail to adequately consider stress distribution, and key connection points lack necessary reinforcement measures. Once the shearing force exceeds their tolerance, the connectors are prone to loosening, leading to shaking during hydraulic shear operation, affecting shearing accuracy. More seriously, in extreme cases, the connectors may even be directly damaged due to the inability to withstand enormous shearing forces, potentially posing safety hazards and failing to meet current requirements. Utility Model Content

[0004] The purpose of this invention is to provide a connecting seat for hydraulic shears in excavators, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connecting seat for a hydraulic shear in an excavator, comprising a connecting seat body, a connecting block disposed inside the connecting seat body, a hydraulic rod fixedly mounted on the side of the connecting block, a connecting seat fixedly mounted on the moving end of the hydraulic rod, and a cutter body disposed inside the connecting seat;

[0006] The connector body consists of a fixing plate, a connecting ear, a fixing seat, a vertical plate, and a horizontal plate. The connecting ear is fixedly installed on the top of the fixing plate, the fixing seat is fixedly installed on the bottom of the fixing plate, the vertical plate is fixedly installed on the bottom of the fixing plate, and the horizontal plate is fixedly installed on the side of the vertical plate.

[0007] Preferably, both the connecting block and the fixing seat have matching first through holes inside, which can be used to movably connect the connecting block and the fixing seat together with bolts and nuts.

[0008] Preferably, the connecting ear has a second through hole inside, which allows the connecting ear and the external excavator boom to be movably installed together by bolts and nuts.

[0009] Preferably, a first reinforcing rib is fixedly installed on the top of the fixing plate, and the first reinforcing rib is fixedly connected to the connecting ear. The first reinforcing rib can enhance the strength between the fixing plate and the connecting ear.

[0010] Preferably, a second reinforcing rib is fixedly installed on both sides of the vertical plate, and the second reinforcing rib is fixedly connected to the fixing plate. The provision of the second reinforcing rib can enhance the strength between the fixing plate and the vertical plate.

[0011] Preferably, reinforcing strips and reinforcing plates are fixedly installed on the side of the vertical plate, which can enhance the strength of the vertical plate itself.

[0012] Preferably, both the vertical plate and the blade body have matching second through holes inside, which can be used to movably connect the vertical plate and the blade body together with bolts and nuts.

[0013] Preferably, both the connecting seat and the cutter body have matching third through holes inside, which can be used to movably connect the connecting seat and the cutter body together with bolts and nuts.

[0014] Preferably, the bottom of the fixing plate is symmetrically provided with two vertical plates, and the two horizontal plates are fixedly installed inside the two vertical plates. This arrangement can further enhance the strength of the vertical plates.

[0015] Preferably, the fixed seat, connecting block, hydraulic rod, connecting seat, and blade body are all grouped into two sets, each symmetrically arranged at the bottom of the fixed plate. The two sets of components consisting of the fixed seat, connecting block, hydraulic rod, connecting seat, and blade body are provided to cut external objects.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model relates to a connecting seat for hydraulic shears in excavators. It features a first reinforcing rib to enhance the strength between the fixed plate and the connecting lug, and a second reinforcing rib to enhance the strength between the fixed plate and the vertical plate, ensuring the stability of the overall structure. The reinforcing strips and plates further strengthen the vertical plate, preventing deformation under complex stress conditions. Additionally, the presence of a horizontal plate further enhances the strength of the vertical plate, ensuring the stability of the connecting seat body from all angles and directions. This allows it to operate stably for extended periods under high-intensity, high-frequency operating conditions, providing a solid guarantee for the smooth operation of various engineering projects. 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 fixing plate and connecting ear structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing base and vertical plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the horizontal plate structure of this utility model.

[0022] In the diagram: 1. Connecting seat body; 101. Fixing plate; 102. Connecting ear; 103. Fixing seat; 104. Vertical plate; 105. Horizontal plate; 2. Connecting block; 3. Hydraulic rod; 4. Connecting seat; 5. Tool body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1-4 This utility model provides a technical solution: a connecting seat for a hydraulic shear in an excavator, including a connecting seat body 1, a connecting block 2 inside the connecting seat body 1, a hydraulic rod 3 fixedly installed on the side of the connecting block 2, a connecting seat 4 fixedly installed on the moving end of the hydraulic rod 3, a cutter body 5 inside the connecting seat 4, and matching third through holes opened inside both the connecting seat 4 and the cutter body 5. This arrangement can movably connect the connecting seat 4 and the cutter body 5 together by bolts and nuts.

[0026] The connecting seat body 1 consists of a fixed plate 101, a connecting ear 102, a fixed seat 103, a vertical plate 104, and a horizontal plate 105. The connecting ear 102 is fixedly installed on the top of the fixed plate 101. A second through hole is opened inside the connecting ear 102. This arrangement allows the connecting ear 102 to be movably installed together with the external excavator boom using bolts and nuts. A first reinforcing rib is fixedly installed on the top of the fixed plate 101. The first reinforcing rib is fixedly connected to the connecting ear 102, and the first reinforcing rib enhances the strength between the fixed plate 101 and the connecting ear 102. The fixed seat 103 is fixedly installed on the bottom of the fixed plate 101. Both the connecting block 2 and the fixed seat 103 have matching first through holes inside. This arrangement allows the connecting block 2 and the fixed seat 103 to be movably connected together using bolts and nuts. The fixed seat 103, connecting block 2, hydraulic rod 3, connecting seat 4, and cutter body 5 are all grouped together, with two groups symmetrically arranged on the bottom of the fixed plate 101. The unit is equipped with two sets of components consisting of a fixed base 103, a connecting block 2, a hydraulic rod 3, a connecting base 4, and a blade body 5, which can cut external objects. A vertical plate 104 is fixedly installed at the bottom of a fixed plate 101. A second reinforcing rib is fixedly installed on both sides of the vertical plate 104. The second reinforcing rib is fixedly connected to the fixed plate 101. The second reinforcing rib enhances the strength between the fixed plate 101 and the vertical plate 104. A reinforcing strip and a reinforcing plate are fixedly installed on the side of the vertical plate 104. This configuration enhances the strength of the vertical plate 104 itself. Matching second through holes are opened inside both the vertical plate 104 and the blade body 5. This configuration can movably connect the vertical plate 104 and the blade body 5 together with bolts and nuts. A horizontal plate 105 is fixedly installed on the side of the vertical plate 104. Two vertical plates 104 are symmetrically arranged at the bottom of the fixed plate 101. Two horizontal plates 105 are fixedly installed inside the two vertical plates 104. This configuration further enhances the strength of the vertical plates 104.

[0027] In use, firstly, the connecting block 2 is fixedly installed on the top of the hydraulic rod 3, and simultaneously the connecting seat 4 is fixedly installed on the moving end of the hydraulic rod 3, so that it works in conjunction with the hydraulic rod 3. Then, the connecting block 2 and the fixed seat 103 are movably connected using matching bolts and nuts. This connection method ensures both the freedom of movement within a certain range and the reliability of the connection. Similarly, the connecting seat 4 and the cutter body 5 are movably connected together using bolts and nuts, and the vertical plate 104 and the cutter body 5 are also movably connected using bolts and nuts, laying the foundation for the flexible operation of the cutter body 5. Furthermore, the connecting ear 102 and the external excavator boom are movably installed using bolts and nuts, thus constructing a complete operating system. When everything is ready, the hydraulic rod 3 is started, and hydraulic power is transmitted, causing the cutter body 5 to move in the correct direction. Running along a preset trajectory, it can perform efficient and precise shearing operations on external objects. The connecting seat body 1 is ingeniously designed with a first reinforcing rib, which enhances the strength between the fixing plate 101 and the connecting ear 102, ensuring the stability of the overall structure. The second reinforcing rib enhances the strength between the fixing plate 101 and the vertical plate 104, ensuring the stability of the overall structure. The reinforcing strip and reinforcing plate enhance the strength of the vertical plate 104 itself, preventing it from deforming under complex stress conditions. In addition, the presence of the horizontal plate 105 further enhances the strength of the vertical plate 104, ensuring the stability of the connecting seat body 1 from all directions and multiple angles. This allows it to operate stably for a long time in high-intensity, high-frequency working environments, providing a solid guarantee for the smooth progress of various engineering operations.

Claims

1. A connection seat for a hydraulic shear of an excavator, comprising a connection seat body (1), characterized in that: The inside of the connecting seat body (1) is provided with a connecting block (2), the side of the connecting block (2) is fixedly installed with a hydraulic rod (3), the moving end of the hydraulic rod (3) is fixedly installed with a connecting seat (4), and the inside of the connecting seat (4) is provided with a cutter body (5). The connecting seat body (1) is composed of a fixed plate (101), a connecting lug (102), a fixed seat (103), a vertical plate (104) and a horizontal plate (105), the connecting lug (102) is fixedly installed on the top of the fixed plate (101), the fixed seat (103) is fixedly installed on the bottom of the fixed plate (101), the vertical plate (104) is fixedly installed on the bottom of the fixed plate (101), and the horizontal plate (105) is fixedly installed on the side of the vertical plate (104).

2. The adapter for a hydraulic shear of a backhoe according to claim 1, wherein: The inside of the connecting block (2) and the fixed seat (103) is provided with a matched first through hole.

3. The adapter of claim 1, wherein: The inside of the connecting lug (102) is provided with a second through hole.

4. The adapter of claim 1 wherein: The top of the fixed plate (101) is fixedly installed with a first reinforcing rib, and the first reinforcing rib is fixedly connected with the connecting lug (102).

5. The adapter of claim 1 wherein: The two sides of the vertical plate (104) are fixedly installed with a second reinforcing rib, and the second reinforcing rib is fixedly connected with the fixed plate (101).

6. The adapter for a hydraulic shear of a backhoe according to claim 1, wherein: The side of the vertical plate (104) is fixedly installed with a reinforcing strip and a reinforcing plate.

7. The adapter of claim 1 wherein: The inside of the vertical plate (104) and the cutter body (5) is provided with a matched second through hole.

8. The adapter for a hydraulic shear of a backhoe according to claim 1, wherein: The inside of the connecting seat (4) and the cutter body (5) is provided with a matched third through hole.

9. The adapter of claim 1, wherein: The bottom of the fixed plate (101) is symmetrically provided with two vertical plates (104), and two horizontal plates (105) are fixedly installed in the inside of the two vertical plates (104).

10. The adapter for a hydraulic shear of a backhoe according to claim 1, wherein: The fixed seat (103), the connecting block (2), the hydraulic rod (3), the connecting seat (4) and the cutter body (5) are one group, and two groups are symmetrically arranged on the bottom of the fixed plate (101).