Mechanized high-strain guide hammering system

Abstract

A mechanical high-strain guide hammering system comprises a vertical guide frame and a heavy hammer, the vertical guide frame is of a rectangular frame structure with an opening in the lower end, a hydraulic winch is fixedly mounted at the upper end of the vertical guide frame, a lifting seat is slidably mounted in the vertical guide frame, and the hydraulic winch is connected with the lifting seat through a steel cable; the lower surface of the lifting seat is connected with a hydraulic unhooking hook; a lifting point is arranged on the upper surface of the heavy hammer, the heavy hammer is connected with the hydraulic unhooking hook through the lifting point, the hydraulic unhooking hook achieves releasing and locking of the heavy hammer through a control oil way, and the heavy hammer moves up and down along an inner cavity of the vertical guide frame. A hinge seat is arranged on the side face of the vertical guide frame body, and the vertical guide frame body is connected with a mechanical arm of the excavator through the hinge seat. According to the utility model, the defects in the prior art are overcome, the accurate positioning of the heavy hammer in the hammering process can be effectively ensured, the heavy hammer is suitable for different detection environments, the risk of manual intervention is greatly reduced, and the working efficiency and the safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing equipment technology, specifically to a mechanized high-strain guided hammering system. Background Technology

[0002] When testing the vertical compressive bearing capacity and pile integrity of a single pile using the high strain method, various testing standards, such as the "Technical Specification for Testing Building Foundation Piles" and the "Technical Specification for Testing Highway Engineering Foundation Piles," clearly stipulate the use of specialized hammering equipment with a stable guiding device.

[0003] However, the steel structure guide devices that are currently commonly installed manually have problems such as complicated installation, requiring a lot of manpower and time, leading to extended construction periods; high input of labor and consumables, increasing testing costs; low degree of mechanization, reliance on manual operation, low efficiency and safety, etc., which cannot meet the requirements of modern construction projects with tight schedules, poor site conditions and high facility costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mechanized high-strain guided hammering system that overcomes the deficiencies of existing technologies. It is rationally designed, effectively ensures the precise positioning of the hammer during the hammering process, adapts to different testing environments, and significantly reduces the risk of manual intervention, thereby improving work efficiency and safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mechanized high-strain guided hammer system includes a vertical guide frame and a hammer. The vertical guide frame is a rectangular frame structure with an open bottom. A hydraulic winch is fixedly installed at the upper end of the vertical guide frame. A lifting seat is slidably installed inside the vertical guide frame. The hydraulic winch is connected to the lifting seat via a steel cable. A hydraulic release hook is connected to the lower surface of the lifting seat. The upper surface of the hammer is provided with a lifting point. The hammer is connected to the hydraulic release hook via the lifting point. The hydraulic release hook releases and locks the hammer through a control oil circuit. The hammer moves up and down along the inner cavity of the vertical guide frame.

[0007] The vertical guide frame is provided with a hinge seat on its side, and the vertical guide frame is connected to the excavator's robotic arm through the hinge seat.

[0008] Preferably, the vertical guide frame is made of high-strength steel plate with a thickness of 14mm. The surface of the high-strength steel plate is coated with an anti-rust and wear-resistant coating.

[0009] Preferably, a level tube is fixedly installed on the outer surface of the vertical guide frame.

[0010] Preferably, guide wheel support frames are installed at the four corners of the lower surface of the lifting seat, and guide wheels are rotatably mounted on the side of the guide wheel support frame via a rotating shaft, with the guide wheels in contact with the inner wall of the vertical guide frame.

[0011] Preferably, the upper surface edge of the hammer is provided with a plurality of bolt locking holes, and the lower edge of the hammer is provided with a plurality of bolt mounting holes, the bolt mounting holes and the bolt locking holes corresponding to each other; a groove is formed in the middle of the lower surface of the hammer, the groove corresponding to the lifting point.

[0012] Preferably, the hydraulic release mechanism includes a first hook and a second hook. A rotating shaft seat is fixedly connected to the middle of the lower surface of the lifting seat. The middle of the first hook and the middle of the second hook are rotatably connected to the rotating shaft seat via rotating shafts. A first semi-circular gear and a second semi-circular gear are provided on the opposite sides of the first hook and the second hook. The first semi-circular gear and the second semi-circular gear mesh with each other. The lower ends of the first hook and the second hook are connected to the lifting point. The upper ends of the first hook and the second hook are respectively connected to the two ends of a hydraulic cylinder via rotating shafts. The hydraulic cylinder controls the oil circuit to realize the relative rotation of the first hook and the second hook, thereby realizing the release and locking of the counterweight.

[0013] An upper support frame is fixedly installed at the upper end of the vertical guide frame cavity. A fixed pulley is horizontally installed in the middle of the upper support frame. A lower support frame is fixedly installed on the upper surface of the lifting seat. A movable pulley is horizontally installed in the middle of the lower support frame. The steel cable is sequentially wound between the fixed pulley and the movable pulley, and the end of the steel cable is fixedly connected to the upper support frame.

[0014] Preferably, the fixed pulley has a plurality of first grooves circumferentially formed on its outer surface, and the movable pulley has a plurality of second grooves circumferentially formed on its outer surface. The first grooves and the second grooves correspond to each other, and the steel cable passes around the first grooves and the second grooves in sequence.

[0015] This invention provides a mechanized high-strain guided hammer impact system with the following advantages: By setting up a vertical guide frame, the system ensures precise positioning of the hammer during impact, reducing deviations; through the coordinated control of a hydraulic release mechanism and a hydraulic winch, the system effectively ensures precise release and lifting of the hammer, providing reliable technical support for high-strain testing. Furthermore, since the entire vertical guide frame is connected to the excavator's robotic arm, its position and angle can be flexibly adjusted to adapt to different testing environments, further expanding the application range of high-strain testing. This design not only simplifies the operation process but also significantly reduces the risk of manual intervention, improving work efficiency and safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.

[0017] Figure 1 A schematic diagram of the structure of this utility model;

[0018] Figure 2 A schematic diagram of the cross-sectional structure of this utility model;

[0019] Figure 3 A schematic diagram of the structure of the counterweight in this utility model;

[0020] Figure 4 A schematic diagram of the hydraulic unhooking mechanism in this utility model;

[0021] Explanation of the labels in the diagram:

[0022] 1. Vertical guide frame; 2. Counterweight; 3. Hydraulic winch; 4. Lifting seat; 5. Steel cable; 6. Hydraulic release hook; 7. Lifting point; 8. Hinge seat; 9. Excavator's robotic arm; 10. Level tube; 11. Guide wheel support frame; 12. Guide wheel; 13. Bolt locking hole; 14. Bolt mounting hole; 15. Shaft seat; 16. Upper support frame; 17. Fixed pulley; 18. Lower support frame; 19. Moving pulley; 61. First hook; 62. Second hook; 63. First semi-circular gear; 64. Second semi-circular gear; 65. Hydraulic cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Example 1, as Figure 1-4 As shown, a mechanized high-strain guided hammer system includes a vertical guide frame 1 and a hammer 2. The vertical guide frame 1 is a rectangular frame structure with an open bottom. A hydraulic winch 3 is fixedly installed on the upper end of the vertical guide frame 1. A lifting seat 4 is slidably installed inside the vertical guide frame 1. The hydraulic winch 3 is connected to the lifting seat 4 via a steel cable 5. A hydraulic release hook 6 is connected to the lower surface of the lifting seat 4. A lifting point 7 is provided on the upper surface of the hammer 2. The hammer 2 is connected to the hydraulic release hook 6 via the lifting point 7. The hydraulic release hook 6 releases and locks the hammer 2 through a control oil circuit. The hammer 2 moves up and down along the inner cavity of the vertical guide frame 1.

[0025] A hinge seat 8 is provided on the side of the vertical guide frame 1, and the vertical guide frame 1 is connected to the excavator's robotic arm 9 through the hinge seat 8. In this embodiment, the control oil circuit of the hydraulic winch 3 and the control oil circuit of the hydraulic unhooking 6 are both connected to the excavator's hydraulic control system through oil pipes.

[0026] Working principle:

[0027] In use, the entire mechanized high strain guide hammer system is first transported to the testing site by a flatbed truck, and the hammer 2 is placed in the predetermined position. Then, the excavator's mechanical arm 9 is used to precisely adjust the position and angle of the vertical guide frame 1 to ensure that the lower end of the vertical guide frame 1 covers the hammer 2.

[0028] Then, the hydraulic winch 3 is activated to release the steel cable 5, causing the lifting platform 4 to descend along the inner cavity of the vertical guide frame 1 until the hydraulic release hook 6 aligns with the lifting point 7 on the upper surface of the hammer 2. The hydraulic control circuit of the hydraulic release hook 6 is then controlled to lock the connection between the hydraulic release hook 6 and the lifting point 7, ensuring a secure connection between the hydraulic release hook 6 and the hammer 2. Next, the steel cable 5 of the hydraulic winch 3 is tightened, allowing the hammer 2 to slowly rise along the inner cavity of the vertical guide frame 1 to a predetermined height via the lifting platform 4. The excavator's robotic arm 9 is then used to move the vertical guide frame 1, along with the hammer 2, to the pile position, so that the vertical guide frame 1 covers the pile. The position and angle of the vertical guide frame 1 are adjusted using the excavator's robotic arm 9 to ensure that the hammer 2 is aligned with the center of the pile and to maintain the verticality of the vertical guide frame 1.

[0029] Then, the hydraulic control circuit of the hydraulic release 6 is controlled so that the hydraulic release 6 is disengaged from the lifting point 7, thereby releasing the hammer 2. The hammer 2 falls freely along the inner cavity of the vertical guide frame 1 under the action of gravity to hit the predetermined pile top, thus completing one hammering operation.

[0030] After the hammer 2 strikes the pile, the steel cable 5 can be released by controlling the hydraulic winch 3, causing the lifting platform 4 to descend again above the hammer 2. Then, the hydraulic control circuit of the hydraulic release hook 6 is controlled to reconnect the hydraulic release hook 6 with the lifting point 7, thereby locking the hammer 2 again. The hydraulic winch 3 is then used to raise the hammer 2 to the predetermined height, and the above steps are repeated to achieve multiple hammer blows, thus completing the high-strain detection hammering process.

[0031] This invention, through the coordinated control of the hydraulic release mechanism 6 and the hydraulic winch 3, effectively ensures the precise release and lifting of the hammer 2, providing reliable technical support for high-strain testing. Simultaneously, since the entire vertical guide frame 1 is connected to the excavator's robotic arm 9, its position and angle can be flexibly adjusted to adapt to different testing environments, further expanding the application range of high-strain testing. This design not only simplifies the operation process but also significantly reduces the risk of manual intervention, improving work efficiency and safety.

[0032] Furthermore, this invention can also install a sensor system on the pile being inspected, thereby collecting real-time stress data of the pile and transmitting it to the central control system for analysis. This allows for accurate assessment of the pile's bearing capacity, ensuring the accuracy and reliability of the test results. Through data feedback, operators can adjust the hammering force and frequency in real time, optimizing the testing process and further improving testing accuracy.

[0033] In Example 2, as a further preferred embodiment of Example 1, the vertical guide frame 1 is made of a 14mm thick high-strength steel plate. The surface of the high-strength steel plate is coated with a rust-proof and wear-resistant coating. By using a 14mm thick high-strength steel plate to construct the vertical guide frame 1 structure, the rigidity and stability of the frame are effectively enhanced, ensuring that the frame does not deform during hammering, improving hammering accuracy and repeatability, and further guaranteeing the accuracy and reliability of the test data. Furthermore, by coating the surface of the vertical guide frame 1 with a rust-proof and wear-resistant coating, the service life of the vertical guide frame 1 is extended, reducing maintenance costs. Simultaneously, the coating also reduces friction, ensuring the smooth fall of the hammer 2 and improving work efficiency.

[0034] In Example 3, as a further preferred embodiment of Example 1, two level tubes 10 are fixedly installed on the outer surface of the vertical guide frame 1. The level tubes 10 are used to verify the verticality of the vertical guide frame 1 after it is in place, thereby ensuring the accuracy of the hammering operation. The installation position of the level tubes 10 ensures a clear line of sight, facilitating quick readings by the operator. Furthermore, the level tubes 10 can be periodically calibrated to ensure their measurement accuracy, further optimizing the reliability and stability of the entire hammering system.

[0035] In Example 4, as a further preferred embodiment of Example 1, two guide wheel support frames 11 are installed at each of the four corner positions on the lower surface of the lifting seat 4. Guide wheels 12 are rotatably mounted on the sides of the two guide wheel support frames 11 via rotating shafts. The two guide wheels 12 at each corner contact the adjacent side walls of the inner cavity of the vertical guide frame 1. Therefore, through the rolling action of the guide wheels 12 against the inner wall of the vertical guide frame 1, the lifting seat 4 can move smoothly up and down within the vertical guide frame 1, while effectively reducing frictional resistance and ensuring smooth and precise lifting. In this embodiment, the guide wheels 12 are made of a highly wear-resistant material, specifically polyimide, which significantly extends the service life of the guide wheels 12.

[0036] In Example 5, as a further preferred embodiment of Example 1, multiple inverted trapezoidal bolt locking holes 13 are provided at the edge of the upper surface of the hammer 2, and multiple trapezoidal bolt mounting holes 14 are provided at the lower edge of the hammer 2. The bolt mounting holes 14 correspond to the bolt locking holes 13. A groove is provided in the middle of the lower surface of the hammer 2, and the groove corresponds to the lifting point 7. Therefore, when it is necessary to configure hammers 2 of corresponding weights, two hammers 2 can be stacked one on top of the other and fixed by bolts passing through the bolt locking holes 13 and bolt mounting holes 14 respectively and connecting them with nuts, thereby achieving a tight connection between the two hammers 2. Specifically, a locking nut can be placed in the bolt locking hole 13, and then the bolt can be inserted downward from the bolt mounting hole 14 into the bolt locking hole 13 and cooperate with the nut. The locking nut and bolt are then tightened to achieve a tight connection between the two hammers 2. Subsequently, hammers of different weights can be combined as needed to flexibly meet various operational requirements and improve the adaptability and practicality of the hammering system.

[0037] Example 6, a further preferred embodiment of Example 1, includes a hydraulic unhooking mechanism 6 comprising a first hook 61 and a second hook 62. A rotating shaft seat 15 is fixedly connected to the lower surface of the lifting base 4. The middle of the first hook 61 and the middle of the second hook 62 are rotatably connected to the rotating shaft seat 15 via rotating shafts. A first semi-circular gear 63 and a second semi-circular gear 64 are respectively provided on the opposite sides of the first hook 61 and the second hook 62, meshing with each other. The lower ends of the first hook 61 and the second hook 62 are connected to the lifting point 7. The upper ends of the first hook 61 and the second hook 62 are respectively connected to the two ends of a hydraulic cylinder 65 via rotating shafts. The hydraulic cylinder 65 controls the relative rotation of the first hook 61 and the second hook 62 through a control oil circuit, thereby releasing and locking the counterweight 2. In this embodiment, the control oil circuit of the hydraulic cylinder 65 is connected to the hydraulic control system of the excavator through an oil pipe.

[0038] Therefore, when it is necessary to connect the hydraulic release hook 6 to the lifting point 7, the control oil circuit of the hydraulic cylinder 65 can be controlled to extend the piston rod of the hydraulic cylinder 65, causing both the first hook body 61 and the second hook body 62 to rotate around the rotating shaft seat 15. Through the lever principle, the lower ends of the first hook body 61 and the second hook body 62 are tightly engaged with the lifting point 7, achieving a stable connection between the release hook 6 and the lifting point 7. When it is necessary to separate the hydraulic release hook 6 from the lifting point 7, simply reverse the control oil circuit of the hydraulic cylinder 65 to retract the piston rod of the hydraulic cylinder 65, thereby disengaging the lower ends of the first hook body 61 and the second hook body 62 from the lifting point 7, ensuring simple and efficient operation and improving operational safety. Furthermore, a first semi-circular gear 63 and a second semi-circular gear 64 are provided on the opposite sides of the first hook body 61 and the second hook body 62, so that the first semi-circular gear 63 and the second semi-circular gear 64 mesh with each other, thereby transmitting power through gear meshing, ensuring that the first hook body 61 and the second hook body 62 rotate synchronously, enhancing connection stability, avoiding structural damage caused by off-center load, and further optimizing the reliability and durability of the unhooking mechanism.

[0039] In Example 7, as a further preferred embodiment of Example 1, an upper support frame 16 is fixedly installed at the upper end of the inner cavity of the vertical guide frame 1. A fixed pulley 17 is horizontally installed in the middle of the upper support frame 16. A lower support frame 18 is fixedly installed on the upper surface of the lifting seat 4. A movable pulley 19 is horizontally installed in the middle of the lower support frame 18. A steel cable 5 is sequentially wound between the fixed pulley 17 and the movable pulley 19, and the end of the steel cable 5 is fixedly connected to the upper support frame 16. Specifically, the outer surface of the fixed pulley 17 is provided with multiple first grooves, and the outer surface of the movable pulley 19 is provided with multiple second grooves. The first grooves and second grooves correspond to each other, and the steel cable 5 sequentially passes around the first grooves and second grooves.

[0040] Therefore, by setting a fixed pulley 17 and a movable pulley 19 to form a pulley group, the tension of the steel cable 5 can be effectively reduced through the principle of the pulley group, thereby increasing the load-bearing capacity of the lifting seat 4, and thus effectively ensuring the smooth lifting and lowering of the counterweight 2, avoiding the risk of breakage caused by excessive tension of the steel cable, and ensuring the safety and reliability of the operation process.

[0041] In Example 8, as a further preferred embodiment of Example 7, the outer surface of the fixed pulley 17 is provided with multiple first grooves, and the outer surface of the movable pulley 19 is provided with multiple second grooves. The first and second grooves correspond to each other, and the steel cable 5 alternately passes around the first and second grooves. By providing multiple first and second grooves on the outer surfaces of the fixed pulley 17 and the movable pulley 19 respectively, and by having the steel cable 5 alternately pass around these grooves, the mechanical distribution of the pulley group can be further optimized, thereby further reducing the tension of the steel cable 5, increasing the load-bearing capacity of the lifting seat 4, and further improving the overall safety and reliability of the operation.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mechanized high-strain guided hammering system, characterized in that: The system includes a vertical guide frame (1) and a counterweight (2). The vertical guide frame (1) is a rectangular frame structure with an opening at the bottom. A hydraulic winch (3) is fixedly installed at the upper end of the vertical guide frame (1). A lifting seat (4) is slidably installed inside the vertical guide frame (1). The hydraulic winch (3) is connected to the lifting seat (4) via a steel cable (5). A hydraulic release hook (6) is connected to the lower surface of the lifting seat (4). A lifting point (7) is provided on the upper surface of the counterweight (2). The counterweight (2) is connected to the hydraulic release hook (6) via the lifting point (7). The hydraulic release hook (6) releases and locks the counterweight (2) by controlling the oil circuit. The counterweight (2) moves up and down along the inner cavity of the vertical guide frame (1). The vertical guide frame (1) is provided with a hinge seat (8) on its side, and the vertical guide frame (1) is connected to the excavator's mechanical arm (9) through the hinge seat (8).

2. The mechanized high-strain guided hammering system according to claim 1, characterized in that: The vertical guide frame (1) is made of a high-strength steel plate with a thickness of 14mm, and the surface of the high-strength steel plate is coated with an anti-rust and wear-resistant coating.

3. The mechanized high-strain guided hammering system according to claim 1, characterized in that: A level tube (10) is fixedly installed on the outer surface of the vertical guide frame (1).

4. The mechanized high-strain guided hammering system according to claim 1, characterized in that: Guide wheel support frames (11) are installed at the four corners of the lower surface of the lifting seat (4). Guide wheels (12) are rotatably installed on the side of the guide wheel support frame (11) via a rotating shaft. The guide wheels (12) are in contact with the inner wall of the vertical guide frame (1).

5. The mechanized high-strain guided hammering system according to claim 1, characterized in that: The upper surface edge of the hammer (2) is provided with multiple bolt locking holes (13), and the lower edge of the hammer (2) is provided with multiple bolt mounting holes (14), the bolt mounting holes (14) and the bolt locking holes (13) correspond to each other; a groove is provided in the middle of the lower surface of the hammer (2), the groove corresponds to the lifting point (7).

6. The mechanized high-strain guided hammering system according to claim 1, characterized in that: The hydraulic release mechanism (6) includes a first hook body (61) and a second hook body (62). A rotating shaft seat (15) is fixedly connected to the middle of the lower surface of the lifting seat (4). The middle of the first hook body (61) and the middle of the second hook body (62) are rotatably connected to the rotating shaft seat (15) through a rotating shaft. A first semi-circular gear (63) and a second semi-circular gear (64) are provided on the opposite sides of the first hook body (61) and the second hook body (62). The first semi-circular gear (63) and the second semi-circular gear (64) mesh with each other. The lower end of the first hook body (61) and the lower end of the second hook body (62) are connected to the lifting point (7). The upper end of the first hook body (61) and the upper end of the second hook body (62) are respectively connected to the two ends of the hydraulic cylinder (65) through a rotating shaft. The hydraulic cylinder (65) realizes the relative rotation of the first hook body (61) and the second hook body (62) by controlling the oil circuit, so as to realize the release and locking of the hammer (2).

7. The mechanized high-strain guided hammering system according to claim 1, characterized in that: An upper support frame (16) is fixedly installed at the upper end of the inner cavity of the vertical guide frame (1). A fixed pulley (17) is horizontally installed in the middle of the upper support frame (16). A lower support frame (18) is fixedly installed on the upper surface of the lifting seat (4). A movable pulley (19) is horizontally installed in the middle of the lower support frame (18). The steel cable (5) is wound between the fixed pulley (17) and the movable pulley (19) in sequence, and the end of the steel cable (5) is fixedly connected to the upper support frame (16).

8. A mechanized high-strain guided hammering system according to claim 7, characterized in that: The fixed pulley (17) has multiple first grooves around its outer surface, and the movable pulley (19) has multiple second grooves around its outer surface. The first grooves and the second grooves correspond to each other, and the steel cable (5) passes around the first grooves and the second grooves in sequence.

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