Excavator material suspension structure

Abstract

The utility model relates to the technical field of engineering machinery provides a kind of excavator material suspension structure, including swing arm, swing arm end rotates and installs quick-change head, the quick-change head includes pedestal, the pedestal fixed mounting first clamping rod, first clamping rod one side rotates and installs second clamping rod, first clamping rod and second clamping rod are set back, first clamping rod is provided with first clamping mouth, second clamping rod is provided with second clamping mouth, it is characterized in that, first clamping mouth is installed first cylinder, second clamping mouth is installed second cylinder, first cylinder both ends fixed mounting arc plate, second cylinder both ends fixed mounting arc plate, arc plate between fixed mounting intermediate vertical plate, the intermediate vertical plate below and between arc plate fixed mounting receiving plate, receiving plate below fixed mounting suspension plate, suspension plate is set up lifting hole, the muscle plate between suspension plate and receiving plate, and the carrying capacity is much higher than that of temporary welding temporary hook.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a material suspension structure for an excavator. Background Technology

[0002] In the field of traditional construction machinery, especially in the practical application of hydraulic excavators, suspended operation is a common but not yet fully optimized function. Currently, when excavators need to perform material suspension, transfer, or hoisting operations, they generally use temporary, non-dedicated suspension devices. Specifically, common practices are shown in the attached figure. Figure 1 As shown, a simple hook or suspension hook is welded directly to the tail of the bucket. This hook is usually made of ordinary steel and is fixed to the bucket structure by on-site welding. Its design purpose is to meet the temporary suspension needs of lightweight materials.

[0003] However, this temporary suspension method has several obvious limitations: Welded hooks have low load-bearing capacity, and the welding operation itself will cause thermal impact on the bucket base material, which may lead to local stress concentration or structural damage, affecting the service life of the bucket. The structural strength is insufficient and cannot meet the suspension requirements of medium and heavy materials, posing a safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide a material suspension structure for excavators that can solve the problem that existing temporary hooks cannot meet the suspension requirements of medium and heavy materials.

[0005] To achieve the above objectives, this utility model proposes a material suspension structure for an excavator. A quick-change head is rotatably installed at the end of the boom. The quick-change head includes a base, a first clamping rod is fixedly installed on the base, and a second clamping rod is rotatably installed on one side of the first clamping rod. The first and second clamping rods are arranged opposite to each other. The first clamping rod has a first clamping opening, and the second clamping rod has a second clamping opening. A first column is installed in the first clamping opening, and a second column is installed in the second clamping opening. Arc-shaped plates are fixedly installed at both ends of the first column and the second column. An intermediate vertical plate is fixedly installed between the arc-shaped plates. A receiving plate is fixedly installed below the intermediate vertical plate and between the arc-shaped plates. A suspension plate is fixedly installed below the receiving plate. The suspension plate has lifting holes, and a stiffening plate is provided between the suspension plate and the receiving plate.

[0006] Further configured, the suspension plate is a triangular plate, one side of the stiffener is fixed to the side wall of the suspension plate, the other side of the stiffener is fixed to the side wall of the support plate, the stiffener is perpendicular to the suspension plate, and the stiffener is perpendicular to the support plate. The triangular suspension plate and the vertically arranged stiffener form a stable triangular support structure, which significantly enhances the bending and torsional resistance of the suspension hole area.

[0007] A further configuration is made such that the intermediate upright plate is perpendicular to the arc-shaped plate and the intermediate upright plate is perpendicular to the supporting plate. The design that the intermediate upright plate is perpendicular to the arc-shaped plate and the supporting plate enhances the rigidity and stability of the overall structure.

[0008] Further, the first column extends to the outer side of the arc-shaped plate at both ends, and a cylinder is provided on the side wall of the arc-shaped plate corresponding to the extended section of the first column. A pin is fixedly installed through the cylinder and the extended section of the first column. Through the cooperation of the pin and the cylinder, a reliable connection between the first column and the arc-shaped plate is achieved, which not only makes the installation simple, but also improves the strength and shear resistance of the connection part.

[0009] A further configuration is provided whereby the two ends of the second column extend to the outer side of the arc-shaped plate, and a cylinder is provided on the side wall of the arc-shaped plate corresponding to the protruding section of the second column. A pin is fixedly installed through the cylinder and the protruding section of the second column. Similarly, the connection reliability between the second column and the arc-shaped plate is enhanced through the cooperation between the pin and the cylinder.

[0010] A further configuration includes a boom-mounted hydraulic cylinder with a hydraulic rod slidably mounted at its end. The end of the hydraulic rod rotates a first connecting rod, the end of which is rotatably connected to a quick-change head. The end of the hydraulic rod also rotates a second connecting rod, the first connecting rod being rotatably connected to the side wall of the boom. The hydraulic cylinder achieves flexible rotation and control of the quick-change head through the linkage mechanism, improving the ease of operation and adaptability of the suspension attachment.

[0011] A further configuration is provided, wherein a hydraulic cylinder is installed inside the base, and the hydraulic cylinder is connected to the first clamping rod through a hydraulic rod. The built-in hydraulic cylinder drives the first clamping rod to achieve clamping and release, resulting in a compact structure and rapid operation response.

[0012] The first clamp is an open design, and the second clamp is an open design. The open clamp design facilitates the quick installation and removal of the first and second columns, improving the efficiency of attachment replacement.

[0013] Further configured, the diameter of the first clamp is larger than the diameter of the first column, and the diameter of the second clamp is larger than the diameter of the second column. The appropriate gap design between the clamp and the column ensures the flexibility of installation, avoids assembly difficulties caused by manufacturing errors or deformation, and ensures good contact and force transmission effect when under force.

[0014] A further feature is that a distance is provided between the first clamp and the second clamp. By reasonably setting the distance between the first clamp and the second clamp, interference between the first clamp rod and the second clamp rod when the first clamp rod rotates is avoided.

[0015] The beneficial effects of one or more of the above technical solutions: This invention solves the problems of insufficient strength and safety hazards of traditional welded suspension hooks. By designing a dedicated suspension attachment, the attachment firmly clamps the first and second columns through the first and second clamps on the quick-change head, achieving a rigid and reliable connection with the excavator's power mechanism. The overall structure (including the intermediate vertical plate, the support plate, the suspension plate, and the stiffening plate) forms a high-strength load-bearing frame. Specifically, the triangular suspension plate, combined with the perpendicular stiffening plate, forms a stable triangular support structure, effectively increasing the rigidity and bending and torsional resistance of the lifting hole area and preventing deformation under heavy loads. The perpendicular design of the intermediate vertical plate, the arc-shaped plate, and the support plate further enhances the rigidity and stability of the overall structure, ensuring that the load can be evenly and effectively transferred to the quick-change head and the boom. The load-bearing capacity of the suspension attachment is far higher than that of temporary welded hooks, and it can safely meet the needs of suspending and transferring medium and even heavy materials, completely avoiding damage to the bucket base material and potential breakage risks caused by insufficient welding strength and the heat-affected zone. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0017] Figure 1 This is a schematic diagram of the existing suspension structure.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the suspension attachment of this utility model.

[0021] In the diagram, 1. boom; 2. quick-change head; 3. base; 4. First clamping rod; 41. First clamping jaw; 5. Second clamping rod; 51. Second clamping jaw; 6. First column; 7. Second column; 8. Curved plate; 9. Intermediate vertical plate; 10. Support plate; 11. Suspension plate; 12. Lifting hole; 13. Rib plate; 14. First connecting rod; 15. Second connecting rod; 16. Pin; 17. Cylinder; 18. First hydraulic cylinder; 19. First hydraulic rod; 20. Temporary hook; 21. Bucket; 22. Suspension attachment. Detailed Implementation

[0022] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0023] Reference Figure 2 , Figure 3 and Figure 4 A material suspension structure for an excavator includes a boom 1, with a quick-change head 2 rotatably mounted at the end of the boom 1. The quick-change head 2 includes a base 3, on which a first clamping rod 4 is fixedly mounted. A second clamping rod 5 is rotatably mounted on one side of the first clamping rod 4. The first clamping rod 4 and the second clamping rod 5 are arranged opposite to each other. The first clamping rod 4 is provided with a first clamping opening 41, and the second clamping rod 5 is provided with a second clamping opening 51. A first column 6 is installed in the first clamping opening 41, and a second column 7 is installed in the second clamping opening 51. Arc-shaped plates 8 are fixedly mounted at both ends of the first column 6, and arc-shaped plates 8 are fixedly mounted at both ends of the second column 7. An intermediate vertical plate 9 is fixedly mounted between the arc-shaped plates 8. The intermediate vertical plate 9 is positioned below... A receiving plate 10 is fixedly installed between the arc-shaped plates 8. A suspension plate 11 is fixedly installed below the receiving plate 10. The suspension plate 11 has lifting holes 12. A stiffening plate 13 is provided between the suspension plate 11 and the receiving plate 10. This structure clamps the first column 6 and the second column 7 respectively through the first clamp 41 and the second clamp 51 on the quick-change head 2, realizing a rigid connection with the excavator's power. The whole structure forms a high-strength load-bearing frame. The combined design of the middle vertical plate 9, the receiving plate 10, the suspension plate 11 and the stiffening plate 13 significantly improves the stability and load-bearing capacity of the structure. It is suitable for the suspension and transfer of medium and heavy materials. Compared with the existing design of welding a temporary hook 20 to the rear of the bucket 21 (refer to...), this design is more robust. Figure 1 This structure avoids bucket damage and safety hazards caused by insufficient strength and heat effects of traditional welded hooks.

[0024] The suspension plate 11 is a triangular plate. One side of the stiffening plate 13 is fixed to the side wall of the suspension plate 11, and the other side of the stiffening plate 13 is fixed to the side wall of the support plate 10. The stiffening plate 13 is perpendicular to the suspension plate 11 and the support plate 10. The triangular suspension plate 11 and the vertically arranged stiffening plate 13 form a stable triangular support structure, which significantly enhances the bending and torsional resistance of the lifting hole 12 area, prevents deformation under heavy load, and further improves the safety and reliability of suspension operation.

[0025] The intermediate upright plate 9 is perpendicular to the arc plate 8 and the intermediate upright plate 9 is perpendicular to the support plate 10. The design that the intermediate upright plate 9 is perpendicular to the arc plate 8 and the support plate 10 enhances the rigidity and stability of the overall structure, ensures that the load can be evenly and effectively transferred to the quick change head 2 and the boom 1, avoids local stress concentration, and extends the service life of the structure.

[0026] The first column 6 extends to the outer side of the arc plate 8 at both ends. A cylinder is provided on the side wall of the arc plate 8 corresponding to the extended section of the first column 6. A pin 16 is fixedly installed through the cylinder and the extended section of the first column 6. Through the cooperation of the pin and the cylinder 17, a reliable connection between the first column 6 and the arc plate 8 is achieved. This not only makes installation simple but also improves the strength and shear resistance of the connection part, ensuring that a stable connection can still be maintained under heavy load.

[0027] The two ends of the second column 7 extend to the outside of the arc plate 8. A cylinder is provided on the side wall of the arc plate 8 corresponding to the extended section of the second column 7. A pin is fixedly installed through the cylinder and the extended section of the second column 7. Similarly, the connection reliability between the second column 7 and the arc plate 8 is enhanced through the cooperation of the pin and the cylinder, making the overall structure more uniform when under stress, and further improving the load-bearing capacity and safety of the suspension attachment.

[0028] A first hydraulic cylinder is installed on the boom 1, and a first hydraulic rod is slidably installed at the end of the first hydraulic cylinder. The end of the hydraulic rod 17 rotates the first connecting rod 14, and the end of the first connecting rod 14 is rotatably connected to the quick-change head 2. The end of the hydraulic rod 17 rotates the second connecting rod 15, and the first connecting rod 14 is rotatably connected to the side wall of the boom 1. The hydraulic cylinder 16 realizes the flexible rotation and control of the quick-change head 2 through the linkage mechanism, which improves the ease of operation and adaptability of the suspension attachment, enabling it to quickly adjust its posture according to different work requirements and improve work efficiency.

[0029] The quick-change head 2 adopts the existing quick-change structure, in which the base 3, hydraulic cylinder, hydraulic rod, base 3, first clamping rod 4 and second clamping rod 4 are all existing structures that come with the quick-change head. The hydraulic cylinder 16 is installed inside the base 3. The hydraulic cylinder is connected to the first clamping rod 4 through the hydraulic rod (the hydraulic cylinder and hydraulic rod are existing structures and are not shown). The built-in hydraulic cylinder 16 drives the first clamping rod 4 to achieve clamping and release. The structure is compact, the operation response is fast, and the clamping stability and automation level are enhanced, making it suitable for operation scenarios with frequent loading and unloading.

[0030] The first clamp 41 is open, and the second clamp 51 is open. The open clamp design facilitates the quick installation and removal of the first column 6 and the second column 7, improves the efficiency of attachment replacement, and maintains sufficient clamping force and stability.

[0031] The diameter of the first clamp 41 is larger than the diameter of the first column 6, and the diameter of the second clamp 51 is larger than the diameter of the second column 7. The appropriate gap design between the clamp and the column ensures the flexibility of installation and avoids assembly difficulties caused by manufacturing errors or deformation. At the same time, it ensures that good contact and force transmission effect can still be maintained when under force.

[0032] A distance is provided between the first clamp 41 and the second clamp 51. By reasonably setting the distance between the first clamp 41 and the second clamp 51, interference between the first clamp 4 and the second clamp 5 is avoided when the first clamp 4 rotates.

[0033] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A material suspension structure for an excavator, comprising a boom, wherein a quick-change head is rotatably mounted at the end of the boom, the quick-change head comprising a base, a first clamping rod fixedly mounted on the base, a second clamping rod rotatably mounted on one side of the first clamping rod, the first and second clamping rods being arranged back-to-back, the first clamping rod having a first clamping jaw, and the second clamping rod having a second clamping jaw, characterized in that... A first column is installed in the first clamp, and a second column is installed in the second clamp. Arc-shaped plates are fixedly installed at both ends of the first column and the second column. An intermediate vertical plate is fixedly installed between the arc-shaped plates. A support plate is fixedly installed below the intermediate vertical plate and between the arc-shaped plates. A hanging plate is fixedly installed below the support plate. The hanging plate has hanging holes. A stiffening plate is provided between the hanging plate and the support plate.

2. The material suspension structure for an excavator according to claim 1, characterized in that, The suspension plate is a triangular plate. One side of the stiffener is fixed to the side wall of the suspension plate, and the other side of the stiffener is fixed to the side wall of the receiving plate. The stiffener is perpendicular to the suspension plate and the receiving plate.

3. The excavator material suspension structure according to claim 1, characterized in that, The intermediate upright plate is perpendicular to the arc-shaped plate, and the intermediate upright plate is perpendicular to the supporting plate.

4. An excavator material suspension structure according to claim 1, wherein, The first column extends to the outside of the arc-shaped plate at both ends. A cylinder is provided on the side wall of the arc-shaped plate corresponding to the extended section of the first column, and a pin is fixedly installed through the cylinder and the extended section of the first column.

5. An excavator material suspension structure according to claim 1, wherein, The two ends of the second column extend to the outside of the arc-shaped plate. A cylinder is provided on the side wall of the arc-shaped plate corresponding to the extended section of the second column. A pin is fixedly installed through the cylinder and the extended section of the second column.

6. An excavator material suspension structure according to claim 1, wherein, The boom is equipped with a hydraulic cylinder, and a hydraulic rod is slidably mounted at the end of the hydraulic cylinder. The end of the hydraulic rod rotates a first connecting rod, and the end of the first connecting rod is rotatably connected to a quick-change head. The end of the hydraulic rod rotates a second connecting rod, and the first connecting rod is rotatably connected to the side wall of the boom.

7. The excavator material suspension structure according to claim 1, characterized in that, A hydraulic cylinder is installed inside the base, and the hydraulic cylinder is connected to the first clamping rod via a hydraulic rod.

8. The material suspension structure for an excavator according to claim 1, characterized in that, The first clamp is open, and the second clamp is open.

9. The material suspension structure for an excavator according to claim 1, characterized in that, The diameter of the first clamp is greater than the diameter of the first column, and the diameter of the second clamp is greater than the diameter of the second column.

10. The material suspension structure for an excavator according to claim 1, characterized in that, A distance is provided between the first clamp and the second clamp.

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