Rotary arm of excavator

Abstract

The utility model discloses a rotating arm of an excavator, which comprises a rotating arm which comprises an excavating arm section, an excavating bucket hinged to the tail end of the excavating arm section, and a rotating disc connected to the lower end of the excavating arm section to rotate the rotating arm; the transverse sliding assembly comprises a U-shaped sliding way and a sliding block arranged on the U-shaped sliding way in a sliding mode, and the sliding block is connected to the lower end of the rotating disc. The transverse driving assembly comprises a driving air cylinder fixed in the U-shaped sliding way in the transverse direction, and the piston end of the driving air cylinder is in transmission connection with the sliding block. Through cooperative work of the rotating arm, the transverse sliding assembly and the transverse driving assembly, flexibility and high efficiency of the excavator are achieved; through the design of the transverse sliding assembly and the transverse driving assembly, the rotating arm can move transversely, and therefore the working range of the excavator is expanded. The overall design ensures the stability and reliability of the excavator under various working conditions, so that the working efficiency of the excavator is improved, and the service life of the excavator is prolonged.

Description

Technical Field

[0001] This utility model relates to a rotating arm, and more particularly to a rotating arm for an excavator. Background Technology

[0002] Excavators, as important engineering machinery, are widely used in earthwork excavation, mining, and construction. Their core function is to excavate, load, and transport materials such as soil and rock through the coordinated work of the boom and bucket. With the diversification and complexity of engineering needs, the performance and flexibility of excavators have become key concerns for users. However, existing excavator technologies still have some drawbacks in terms of structural design and work efficiency, limiting their performance in practical applications.

[0003] Traditional excavators typically consist of the following main components: a chassis, including tracks or tires, which supports the machine and provides mobility; a rotating platform, mounted on the chassis, capable of 360-degree rotation, which carries the digging arm and cab; the digging arm, including the boom, arm, and bucket, which is driven by hydraulic cylinders to extend, retract, and rotate, performing the digging action; and a hydraulic system, which provides power to the digging arm and rotating platform, including hydraulic pumps, hydraulic cylinders, and hydraulic motors. While the rotating platform of a traditional excavator can rotate 360 ​​degrees, the rotation range is still limited in some narrow or complex working environments, affecting work efficiency. Secondly, rotation is usually limited to the rotating platform itself, lacking lateral movement capability. When lateral adjustments to the digging position are needed, the entire chassis must be moved, which not only increases operational difficulty but also reduces work efficiency. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides an excavator rotating arm.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: an excavator rotating arm, comprising:

[0006] A rotating boom includes a digging boom section and a digging bucket hinged to the end of the digging boom section, as well as a rotary disk connected to the lower end of the digging boom section to rotate the rotating boom.

[0007] A lateral sliding assembly includes a U-shaped slide rail and a slider that is slidably disposed on the U-shaped slide rail, the slider being connected to the lower end of a rotating disk;

[0008] The lateral drive assembly includes a drive cylinder fixed laterally within a U-shaped slide, with the piston end of the drive cylinder connected to a slider.

[0009] Furthermore, the U-shaped slide is arranged laterally, and there is a lateral opening at the bottom of the U-shaped slide. The slider slides through the outside of the U-shaped slide, and the bottom wall of the slider is located below the lateral opening.

[0010] Furthermore, the drive cylinder is fixedly connected to the top wall of the U-shaped slide by an L-shaped bracket mounted on the cylinder body. There are two L-shaped brackets.

[0011] Furthermore, a fixed block is connected to the piston end of the drive cylinder, and a horizontal plate is connected to the lower end of the fixed block. The horizontal plate is connected to the bottom wall of the slider.

[0012] Furthermore, the excavator boom section includes a base, a boom, and a forearm. The base and boom are hinged together, and the base and boom are connected by a hydraulic cylinder. The boom and forearm are hinged together, and the boom and forearm are connected by a hydraulic cylinder. The forearm and excavator bucket are connected by a hydraulic cylinder.

[0013] This utility model discloses an excavator boom that achieves flexibility and efficiency through the coordinated work of the boom, lateral sliding assembly, and lateral drive assembly. The segmented design and hydraulic drive of the boom allow the excavator to flexibly adjust the boom's length and angle under different working conditions, thereby improving work efficiency and adaptability. The design of the lateral sliding assembly and lateral drive assembly enables the boom to move laterally, thus expanding the excavator's working range. The overall design ensures the excavator's stability and reliability under various working conditions, thereby improving the excavator's work efficiency and service life. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention.

[0015] Figure 2 for Figure 1 Enlarged view of the structure in the middle circle.

[0016] Figure 3 This is a perspective view of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the lateral drive component.

[0018] In the diagram: 1. Excavator boom section; 2. Excavator bucket; 3. U-shaped slide rail; 4. Rotary disc; 5. Sliding block; 6. Drive cylinder; 7. L-shaped bracket; 8. Fixing block; 9. Horizontal plate; 10. Base; 11. Boom; 12. Arm; 13. Hydraulic cylinder one; 14. Hydraulic cylinder two; 15. Hydraulic cylinder three. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] In this embodiment, Figure 1-4The excavator boom shown includes a boom, a lateral sliding assembly, and a lateral drive assembly. Through the coordinated operation of the boom, the lateral sliding assembly, and the lateral drive assembly, the excavator achieves both flexibility and efficiency. Specifically:

[0021] The boom is the core component of the excavator, responsible for performing digging actions. It includes the boom section 1, the bucket 2, and the rotary disk 4. The bucket 2 is hinged to the end of the boom section 1, and the rotary disk 4 is connected to the lower end of the boom section 1 to rotate the boom. The rotary disk 4 is one of the key components of the excavator's boom, responsible for enabling the boom to rotate 360 ​​degrees. The boom section 1 includes a base 10, a boom 11, and a forearm 12. The base 10 and boom 11 are hinged together and connected by a hydraulic cylinder 13. The boom 11 and forearm 12 are also hinged together and connected by a hydraulic cylinder 14. The forearm 12 and bucket 2 are connected by a hydraulic cylinder 15. Driven by hydraulic cylinders 13, 14, and 15, the base 10, boom 11, and forearm 12 can rotate relative to each other, thereby adjusting the length and angle of the boom.

[0022] The lateral sliding assembly includes a U-shaped slide rail 3 and a slider 5 slidably mounted on the U-shaped slide rail 3. The slider 5 is connected to the lower end of the rotary disk. The rotary disk 4 is a commercially available drive rotary disk, including a slewing bearing, which typically uses a large ball or roller bearing structure, capable of withstanding multi-directional loads such as axial, radial, and overturning moments. The inner and outer rings of the slewing bearing are fixed to the rotary disk and the slider, respectively, to achieve relative rotation. The upper plate of the rotary disk 4 is fixedly connected to the base 10 of the excavator arm section 1, bearing the weight of the excavator arm and its hydraulic system. The upper plate is typically welded from high-strength steel plates, possessing good rigidity and torsional resistance. The lower plate of the rotary disk 4 is fixedly connected to the slider, achieving relative rotation with the upper plate via the slewing bearing. The lower plate is typically designed with mounting holes and a fixing structure to ensure a stable connection with the chassis. The rotation of the rotary disk is typically driven by a hydraulic motor or electric motor, which drives the slewing bearing to rotate via a gear or worm gear transmission mechanism. The drive unit is typically installed on one side or at the center of the rotary disk.

[0023] The lateral drive assembly includes a drive cylinder 6 fixed laterally within a U-shaped slide rail 3, with a slider 5 driven by the piston end of the drive cylinder 6. The drive cylinder 6 is fixedly connected to the top wall of the U-shaped slide rail 3 via two L-shaped brackets 7 mounted on the cylinder body of the drive cylinder 6. A fixing block 8 is connected to the piston end of the drive cylinder 6, and a horizontal plate 9 is connected to the lower end of the fixing block 8. The horizontal plate 9 is connected to the bottom wall of the slider 5. By sliding the slider 5 within the U-shaped slide rail 3, the boom can move laterally, thereby expanding the excavator's working range. The design of the L-shaped brackets 7, fixing block 8, and horizontal plate 9 ensures the stability and reliability of the drive cylinder 6, thus guaranteeing the smooth and stable sliding of the slider 5.

[0024] In other embodiments, based on this embodiment, the rotating arm, the lateral sliding assembly, and the lateral drive assembly can be modified and improved in other embodiments in the following ways to meet different engineering needs and application scenarios:

[0025] Based on the existing boom 11 and forearm 12, more boom segments can be added, such as a mid-arm or auxiliary arm, to further improve the flexibility and working range of the excavator boom.

[0026] The U-shaped slide rail 3 of the lateral sliding component can be replaced with other types of slide rails, such as T-shaped slide rails, straight slide rails, or curved slide rails, to adapt to different working environments and needs. The slider 5 can employ a roller or sliding bearing structure to reduce sliding friction and improve the smoothness and durability of sliding. Extendable or connectable slide rails can be designed, allowing the length of the slide rail to be adjusted according to actual needs, expanding or reducing the lateral movement range.

[0027] The drive cylinder 6 of the lateral drive assembly can be replaced with a hydraulic cylinder, electric push rod, or servo motor to meet the power requirements under different working conditions. Multiple drive cylinders 6 are installed within the U-shaped slide rail 3 to drive different positions of the slider 5, improving the stability and accuracy of the drive. Alternatively, sensors and a control system can be integrated into the drive assembly to monitor the position and movement status of the slider 5 in real time, achieving automated lateral movement control.

[0028] The overall structure utilizes high-strength, lightweight materials (such as aluminum alloy or composite materials) to manufacture the rotating arm, slide rails, and sliders, reducing overall weight. Applications of this patent include, but are not limited to, miniaturized excavators: miniaturizing the rotating arm, lateral sliding assembly, and lateral drive assembly for use in miniature excavators to meet the needs of confined spaces or delicate operations. Specialty excavators, designed for special working conditions (such as deep-sea excavation and mining), featuring corrosion-resistant, high-pressure-resistant, or high-temperature-resistant rotating arms and sliding assemblies. Automated excavators, combining artificial intelligence and automation technology to achieve autonomous control and collaborative operation of the rotating arm and lateral sliding assembly, improving the excavator's intelligence level.

[0029] In other embodiments, the rotating arm, lateral sliding assembly, and lateral drive assembly can be modified and improved in various ways, including multi-segment digging arms, diversification of slide rail forms, optimization of drive methods, improvement of rotary table design, and lightweighting and intelligentization of the overall structure. These modifications and improvements not only meet different engineering needs and application scenarios but also further enhance the excavator's flexibility, efficiency, and reliability, providing more possibilities for the development of modern construction machinery. All of the above improvements are within the scope of protection of this patent.

[0030] In summary, this patent proposes a novel excavator boom that addresses the shortcomings of traditional excavators in terms of rotation range, lateral movement capability, and adaptability through the coordinated operation of the boom, lateral sliding assembly, and lateral drive assembly. Specifically, the improvement involves adding lateral movement functionality. Through the lateral sliding assembly and lateral drive assembly, the excavator boom can move laterally within the U-shaped slide rail 3, reducing the frequency of chassis movement and improving work efficiency.

[0031] Simultaneously, through the coordinated operation of the rotating arm, lateral sliding assembly, and lateral drive assembly, this patented excavator rotating arm significantly improves the excavator's flexibility, work efficiency, and adaptability, meeting the high-performance requirements of modern construction machinery. The segmented design and hydraulic drive of the rotating arm allow the excavator to flexibly adjust the arm's length and angle under different working conditions, thereby improving work efficiency and adaptability. The design of the lateral sliding assembly and lateral drive assembly enables the rotating arm to move laterally, thus expanding the excavator's working range. The overall design ensures the excavator's stability and reliability under various working conditions, thereby improving the excavator's work efficiency and service life.

[0032] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A rotating arm for an excavator, characterized in that, include: The rotating arm includes a digging arm section (1) and a digging bucket (2) hinged at the end of the digging arm section (1), and a rotating disk (4) connected to the lower end of the digging arm section (1) to rotate the rotating arm. The lateral sliding assembly includes a U-shaped slide rail (3) and a slider (5) slidably disposed on the U-shaped slide rail (3), the slider (5) being connected to the lower end of the rotating disk; The lateral drive assembly includes a drive cylinder (6) fixed laterally within a U-shaped slide (3), the piston end of which is connected to the slider (5).

2. The excavator rotating arm according to claim 1, characterized in that: The U-shaped slide (3) is arranged in a horizontal direction, and the U-shaped slide (3) has a horizontal opening at its bottom. The slider (5) slides through the U-shaped slide (3), and the bottom wall of the slider (5) is located below the horizontal opening.

3. The excavator rotating arm according to claim 1, characterized in that: The drive cylinder (6) is fixedly connected to the top wall of the U-shaped slide (3) by an L-shaped bracket (7) fitted on the outside of the cylinder body of the drive cylinder (6). There are two L-shaped brackets (7).

4. The excavator rotating arm according to claim 1, characterized in that: The piston end of the drive cylinder (6) is connected to a fixed block (8), and the lower end of the fixed block (8) is connected to a horizontal plate (9), which is connected to the bottom wall of the slider (5).

5. The excavator rotating arm according to claim 1, characterized in that: The excavator boom (1) includes a base (10), a boom (11) and a forearm (12). The base (10) and the boom (11) are hinged together. The base (10) and the boom (11) are connected by a hydraulic cylinder (13). The boom (11) and the forearm (12) are hinged together. The boom (11) and the forearm (12) are connected by a hydraulic cylinder (14). The forearm (12) and the excavator bucket (2) are connected by a hydraulic cylinder (15).

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