Efficient ballast tamper for excavator

Abstract

The utility model discloses a kind of high-efficiency ballast rammer for excavator, it is related to rammer technical field. Including excavator arm and connecting seat, the top end of both sides of connecting seat is fixed with connecting frame, power transmission assembly is set in the through of connecting frame, the inner wall between the both sides of connecting frame is fixed with protective shell, the outer wall of both ends of protective shell is provided with clamping assembly, the bottom of clamping assembly is fixed with pick leg. The utility model is through the high-efficiency vibration design of eccentric wheel driven by hydraulic motor in power transmission assembly, vibration force is big and vibration frequency can be flexibly adjusted by hydraulic control, can be quickly to ballast sufficient compaction;Meanwhile, the clamping amplitude of clamping assembly driven by hydraulic oil cylinder is big, and clamping force is strong, can be quickly and stably clamped ballast, reduce the adjustment time in operation process, overall action response is fast, greatly improve ramming operation efficiency, in addition, the overall volume of device is small, can be realized by excavator and be carried out mobile and operation.

Description

Technical Field

[0001] This utility model relates to the field of tamping machine technology, specifically a high-efficiency ballast tamping machine for excavators. Background Technology

[0002] In the construction and maintenance of railways, mines and other engineering projects, ballast tamping is a key step in ensuring track stability and improving the structural integrity of the project.

[0003] Traditional ballast compaction equipment often suffers from bulkiness, making it difficult to maneuver in complex sites or when frequent relocation is required, resulting in poor flexibility and hindering efficient operation. Furthermore, some traditional equipment lacks sufficient vibration power to adequately compact the ballast, affecting compaction quality. Additionally, the clamping mechanisms suffer from weak clamping and limited clamping range, making it difficult to stably hold the ballast, further reducing operational efficiency. Moreover, traditional equipment has a slow response time and low overall efficiency, failing to meet the high demands of modern engineering projects for construction progress and quality. Therefore, this patent proposes a forklift clamping device to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a high-efficiency ballast compactor for excavators to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency ballast compactor for excavators, comprising an excavator arm and a connecting seat, with connecting frames fixed at the top of both sides of the connecting seat, a power transmission component running through the connecting frame, a protective shell fixed between the inner walls of both sides of the connecting frame, clamping components provided on the outer walls of both ends of the protective shell, and a pick leg fixed at the bottom end of the clamping component.

[0006] Preferably, the power transmission assembly includes a hydraulic motor fixed to one side of the connecting frame, a deflector wheel rotatably connected between the inner walls of the two sides of the connecting frame, the output shaft of the hydraulic motor passing through the connecting frame and fixed to the deflector wheel, and the deflector wheel located inside the protective shell.

[0007] Preferably, the clamping assembly includes hydraulic cylinders fixed to both ends of the protective shell, fixed frames fixed to both ends of the connecting seat, rotating rods rotatably connected to the fixed frames, adjusting frames fixed to the outer wall of the rotating rods, connecting rods fixed between the two sides of the adjusting frames, rotating rings fixed to the output end of the hydraulic cylinders, rotating rings rotatably connected to the outer wall of the connecting rods, and pick legs fixed to the bottom end of the adjusting frames.

[0008] Preferably, the bottom end of the excavator arm is provided with a buffer mechanism, which is located above the connecting seat.

[0009] Preferably, the buffer mechanism includes a mounting bracket rotatably connected to the bottom end of the excavator arm, a first mounting plate fixed to the bottom end of the mounting bracket, a second mounting plate fixed to the top end of the connecting seat, and a buffer installed between the first mounting plate and the second mounting plate to buffer the transmission of vibration generated by the rotation of the eccentric wheel between the first mounting plate and the second mounting plate.

[0010] Preferably, the pick leg is bolted to the adjusting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The device utilizes a hydraulic motor-driven eccentric wheel with a highly efficient vibration design in its power transmission assembly. This results in a large vibration force and a flexible vibration frequency that can be controlled hydraulically, enabling rapid and thorough compaction of ballast. Simultaneously, the hydraulically driven clamping assembly offers a wide clamping range and strong clamping force, allowing for quick and stable clamping of ballast, reducing adjustment time during operation. The overall action response is rapid, significantly improving tamping efficiency. Furthermore, the device is compact in size and can be moved and operated by mounting it on an excavator. The installation process is simple and fast, adapting to the complex site requirements of various scenarios such as railways and mines. Especially when frequent movement or operation in confined spaces is required, its flexibility is significantly superior to traditional large-scale tamping equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a partial structural schematic diagram of the present invention.

[0013] In the diagram: 1. Excavator arm; 2. Mounting frame; 3. First mounting plate; 4. Second mounting plate; 5. Buffer; 6. Connecting seat; 7. Connecting frame; 8. Hydraulic motor; 9. Protective shell; 10. Hydraulic cylinder; 11. Fixing frame; 12. Adjusting frame; 13. Rotary rod; 14. Swivel; 15. Connecting rod; 16. Pick leg. Detailed Implementation

[0014] 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.

[0015] In the construction and maintenance of railways, mines, and other engineering projects, ballast tamping is a crucial step in ensuring track stability and enhancing the structural integrity of the project. Traditional ballast tamping equipment often suffers from bulkiness, making it difficult to operate on tracks in complex environments or when frequent relocation is required. Its lack of flexibility hinders its ability to meet the demands of efficient operation. Furthermore, some traditional equipment lacks sufficient vibration to adequately compact the ballast, affecting tamping quality. Additionally, the clamping mechanisms suffer from weak clamping and limited clamping range, making it difficult to stably hold the ballast, further reducing operational efficiency. Moreover, traditional equipment has a slow response time and low overall operational efficiency, failing to meet the high requirements of modern engineering projects for construction progress and quality.

[0016] like Figures 1-4 As shown, this utility model provides a technical solution: a high-efficiency ballast compactor for excavators, including an excavator arm 1 and a connecting seat 6. Connecting frames 7 are fixed to the top of both sides of the connecting seat 6. A power transmission component is installed through the connecting frame 7. A protective shell 9 is fixed between the inner walls of both sides of the connecting frame 7. Clamping components are provided on the outer walls of both ends of the protective shell 9. A pick leg 16 is fixed to the bottom end of the clamping component.

[0017] It should be noted that the power transmission component is the core vibration source of this tamping machine. The power transmission component drives the pick legs 16 to vibrate, thereby achieving the compaction of the ballast. The clamping component adjusts the distance between the pick legs 16 to clamp and fix the ballast, preventing the ballast from shifting during operation and affecting the tamping effect.

[0018] like Figure 3 and Figure 4 As shown, the power transmission assembly includes a hydraulic motor 8 fixed on one side of the connecting frame 7. A deflector wheel is rotatably connected between the inner walls of the two sides of the connecting frame 7. The output shaft of the hydraulic motor 8 passes through the connecting frame 7 and is fixed to the deflector wheel. The deflector wheel is located inside the protective shell 9.

[0019] It is important to note that the hydraulic motor 8, as a power input component, has its inlet and outlet ports connected to the hydraulic circuit of the excavator's hydraulic system. Its output speed can be adjusted via the excavator's hydraulic control module, thereby controlling the overall vibration frequency. The eccentric wheel is fixedly connected to the output shaft of the hydraulic motor 8, and its center of gravity is offset from the rotation axis. It generates unbalanced centrifugal force through its own rotation. When the hydraulic motor 8 drives the eccentric wheel to rotate at a preset speed, the centrifugal force changes periodically and is transmitted to the tamping machine body, causing the pick legs 16 to synchronously generate high-frequency vibrations, thus achieving the compaction of the ballast.

[0020] like Figure 4As shown, the clamping assembly includes hydraulic cylinders 10 fixed to both ends of the protective shell 9. Fixing frames 11 are fixed to both ends of the connecting seat 6. A rotating rod 13 is rotatably connected to the fixing frame 11. An adjusting frame 12 is fixed to the outer wall of the rotating rod 13. A connecting rod 15 is fixed between the two sides of the adjusting frame 12. A rotating ring 14 is fixed to the output end of the hydraulic cylinder 10. The rotating ring 14 is rotatably connected to the outer wall of the connecting rod 15. A pick leg 16 is fixed to the bottom end of the adjusting frame 12. Bolts are screwed between the pick leg 16 and the adjusting frame 12.

[0021] It should be noted that the hydraulic cylinder 10 drives the adjusting frame 12 to rotate on the fixed frame 11, thereby adjusting the position of the pick leg 16 to clamp and fix the ballast stone, preventing the ballast stone from shifting during operation and affecting the tamping effect. The pick leg 16 is detachably connected to the bottom of the adjusting frame 12, and can be quickly replaced if damaged later.

[0022] like Figure 1 As shown, a buffer mechanism is provided at the bottom end of the excavator arm 1, and the buffer mechanism is located above the connecting seat 6. The buffer mechanism includes a mounting bracket 2 rotatably connected to the bottom end of the excavator arm 1. A first mounting plate 3 is fixed to the bottom end of the mounting bracket 2, and a second mounting plate 4 is fixed to the top end of the connecting seat 6. A buffer 5 is installed between the first mounting plate 3 and the second mounting plate 4 to buffer the transmission of vibration generated by the rotation of the eccentric wheel between the first mounting plate 3 and the second mounting plate 4.

[0023] It should be noted that the high-frequency vibration generated by the rotation of the eccentric wheel will be transmitted to the second mounting plate 4 through the main structure. The buffer 5 can absorb some of the vibration energy through its own elastic deformation and damping effect, weaken the vibration transmission intensity between the first mounting plate 3 and the second mounting plate 4, and avoid rigid impacts from damaging the structure.

[0024] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A high-efficiency ballast compactor for excavators, comprising an excavator arm (1) and a connecting seat (6), characterized in that: Connecting brackets (7) are fixed at the top of both sides of the connecting seat (6). A power transmission component is installed through the connecting bracket (7). A protective shell (9) is fixed between the inner walls of both sides of the connecting bracket (7). Clamping components are installed on the outer walls of both ends of the protective shell (9). A pick leg (16) is fixed at the bottom of the clamping component.

2. The high-efficiency ballast compactor for excavators according to claim 1, characterized in that: The power transmission assembly includes a hydraulic motor (8) fixed on one side of the connecting frame (7). A deflector wheel is rotatably connected between the inner walls of the two sides of the connecting frame (7). The output shaft of the hydraulic motor (8) passes through the connecting frame (7) and is fixed to the deflector wheel. The deflector wheel is located inside the protective shell (9).

3. The high-efficiency ballast compactor for excavators according to claim 1, characterized in that: The clamping assembly includes hydraulic cylinders (10) fixed at both ends of the protective shell (9), and fixed frames (11) fixed at both ends of the connecting seat (6). A rotating rod (13) is rotatably connected to the fixed frame (11). An adjusting frame (12) is fixed to the outer wall of the rotating rod (13). A connecting rod (15) is fixed between the two sides of the adjusting frame (12). A rotating ring (14) is fixed to the output end of the hydraulic cylinder (10). The rotating ring (14) is rotatably connected to the outer wall of the connecting rod (15). The pick leg (16) is fixed to the bottom end of the adjusting frame (12).

4. The high-efficiency ballast compactor for excavators according to claim 1, characterized in that: The bottom end of the excavator arm (1) is provided with a buffer mechanism, which is located above the connecting seat (6).

5. A high-efficiency ballast compactor for excavators according to claim 4, characterized in that: The buffer mechanism includes a mounting bracket (2) rotatably connected to the bottom end of the excavator arm (1), a first mounting plate (3) is fixed to the bottom end of the mounting bracket (2), a second mounting plate (4) is fixed to the top end of the connecting seat (6), and a buffer (5) is installed between the first mounting plate (3) and the second mounting plate (4) to buffer the transmission of vibration generated by the rotation of the eccentric wheel between the first mounting plate (3) and the second mounting plate (4).

6. The high-efficiency ballast compactor for excavators according to claim 1, characterized in that: The pick leg (16) is bolted to the adjusting frame (12).

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