Pile pressing machine
By introducing a dual monitoring system into the pile driver, using sensors to monitor the displacement of the hydraulic pile clamp and the stroke of the pipe pile, the problem of insufficient monitoring accuracy in the existing technology is solved, and precise control of the pipe pile's penetration depth is achieved, ensuring project quality.
Patent Information
- Application Number
- CN202511952352.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-02-06
AI Technical Summary
The existing pile driving machines have low accuracy in monitoring the travel of the pipe piles, which makes it impossible to effectively avoid insufficient or excessive penetration depth of the pipe piles into the soil, thus affecting the quality of the project.
A dual monitoring system is adopted, with the first sensor monitoring the displacement of the hydraulic pile clamp and the second sensor monitoring the stroke of the pipe pile. Combined with real-time display and data processing by the terminal equipment, the monitoring accuracy is ensured.
This enabled precise monitoring of the pipe pile's travel, ensuring project quality and avoiding issues such as improper pipe pile insertion depth.
Smart Images
Figure CN121473337A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of construction equipment, and more specifically, relates to a pile driver. Background Technology
[0002] Piling machines are the core equipment for pile foundation construction. They use a hydraulic system to output stable pressure to drive precast pipe piles (such as concrete pipe piles and steel piles) into the ground to a specified depth to form a pile foundation that can bear the building load. They are widely used in high-rise buildings, bridges, municipal engineering and other fields. During the operation of pile driving machines, it is necessary to avoid insufficient or excessive penetration of the pipe piles into the ground in order to ensure that the bearing capacity of the pile foundation meets the requirements and to ensure the quality of the project. Therefore, it is necessary to monitor the pipe pile stroke. However, the existing pile driving machines have low accuracy in monitoring the pipe pile stroke. Summary of the Invention
[0003] The main objective of this invention is to provide a pile driver with high accuracy in monitoring the travel of pipe piles.
[0004] According to a first aspect of the present invention, a pile driver is provided, comprising a pile frame, a hydraulic pile clamp, a hydraulic drive device, a first sensor, and a second sensor. The pile frame has a frame body and a guide frame, the guide frame being connected to the top of the frame body. The hydraulic pile clamp is connected to the guide frame and is capable of sliding vertically. The hydraulic drive device is fixedly connected to the top of the guide frame, and its output end is connected to the hydraulic pile clamp. The hydraulic drive device is used to drive the hydraulic pile clamp to slide. The first sensor is connected to the guide frame and is used to monitor the displacement of the hydraulic pile clamp. The second sensor is connected to the frame body and is used to monitor the stroke of the pipe pile.
[0005] In a specific embodiment of the present invention, the first sensor is a pull-wire sensor, which is fixedly connected to the upper part of the guide frame, and the pull wire of the pull-wire sensor is fixedly connected to the top surface of the hydraulic pile clamp.
[0006] In a specific embodiment of the present invention, the pile driver further includes a connecting seat, which is fixedly connected to the bottom surface of the frame body;
[0007] The second sensor includes a rotary encoder and a measuring roller. The measuring roller is fixedly connected to the rotary encoder, which is fixedly connected to the connecting seat. The measuring roller is used to contact the pipe pile.
[0008] In a specific embodiment of the present invention, the connecting seat includes a seat body, a connecting ear, and a mounting rod. The seat body is fixedly connected to the bottom surface of the frame body, the connecting ear is fixedly connected to the bottom surface of the seat body, and one end of the mounting rod along its length is fixedly connected to the connecting ear, while the other end is fixedly connected to the rotary encoder.
[0009] In a specific embodiment of the present invention, the connecting ear has a first connecting hole, the mounting rod has a second connecting hole, and the first connecting hole and the second connecting hole are directly opposite each other;
[0010] The connecting seat also includes a bolt and a nut. The bolt passes through the first connecting hole and the second connecting hole and is connected to the nut to fix the connecting lug and the mounting rod.
[0011] In a specific embodiment of the present invention, the base is welded and fixed to the frame body.
[0012] One of the above-described technical solutions of the present invention has at least one of the following advantages or beneficial effects:
[0013] The pile driver of the present invention monitors the downward displacement of the hydraulic pile clamp by a first sensor and the travel of the pipe pile by a second sensor. The travel of the pipe pile can also be monitored by monitoring the displacement of the hydraulic pile clamp. Thus, dual monitoring of the pipe pile travel can be formed, which can accurately monitor the driving depth of the pipe pile and ensure the quality of the project. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is a structural diagram of the pile driver according to an embodiment of the present invention;
[0016] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged diagram of A in the middle;
[0017] Figure 3 This is a structural diagram of the connection base and the second sensor in an embodiment of the present invention.
[0018] The reference numerals in the figures are as follows: 1. Pile frame; 11. Frame body; 12. Guide frame body; 2. Hydraulic pile clamp; 3. Hydraulic drive device; 4. First sensor; 5. Second sensor; 6. Connecting seat; 61. Seat body; 62. Connecting lug; 63. Mounting rod; 64. Bolt; 65. Nut; 100. Pipe pile. Detailed Implementation
[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0020] Reference Figures 1 to 3 As shown, a preferred embodiment of the pile driver of this application includes a pile frame 1, a hydraulic pile clamp 2, a hydraulic drive device 3, a first sensor 4, and a second sensor 5. The pile frame 1 has a frame body 11 and a guide frame 12. The guide frame 12 is connected to the top of the frame body 11. The hydraulic pile clamp 2 is connected to the guide frame 12 and can slide vertically. The hydraulic drive device 3 is fixedly connected to the top of the guide frame 12. The output end of the hydraulic drive device 3 is connected to the hydraulic pile clamp 2 and is used to drive the hydraulic pile clamp 2 to slide. The first sensor 4 is connected to the guide frame 12 and is used to monitor the displacement of the hydraulic pile clamp 2. The second sensor 5 is connected to the frame body 11 and is used to monitor the stroke of the pipe pile 100.
[0021] The pile driver of the present invention monitors the downward displacement of the hydraulic pile clamp 2 through a first sensor 4 and the stroke of the pipe pile 100 through a second sensor 5. The stroke of the pipe pile 100 can also be monitored by monitoring the displacement of the hydraulic pile clamp 2. Thus, dual monitoring of the stroke of the pipe pile 100 can be formed, which can accurately monitor the penetration depth of the pipe pile 100 and ensure the quality of the project.
[0022] It should be noted that the pile driver also includes a driver's cab, which is connected to the top of the main frame 11 and spaced apart from the guide frame 12. The driver's cab is equipped with terminal equipment, and the first sensor 4 and the second sensor 5 are electrically connected to the terminal equipment. The terminal equipment can receive and display the monitoring data collected by the first sensor 4 and the second sensor 5 in real time, so that the operator can intuitively grasp the displacement of the hydraulic pile clamp 2 and the changes in the stroke of the pipe pile 100 from the driver's cab, which is convenient for the operator to control the construction work of the pipe pile 100. Furthermore, the operator can observe whether the two monitoring data are consistent through the terminal equipment. If there is a data deviation or abnormality, the operator can take measures such as adjustment or stopping the machine to ensure the quality of the project.
[0023] In the pile driver, the pile frame 1, the hydraulic pile clamp 2, the hydraulic drive device 3, and the cab are all existing technologies. In addition, other basic structures of the pile driver are also existing technologies, and this application will not elaborate on them.
[0024] In this embodiment, the first sensor 4 is a pull-wire sensor, which is welded and fixedly connected to the upper part of the guide frame 12. The pull wire of the pull-wire sensor is welded and fixedly connected to the top surface of the hydraulic pile clamp 2. The pull-wire sensor is used to monitor the displacement of the hydraulic pile clamp 2. It has a simple structure, is easy to install, and has high monitoring accuracy. It should be noted that the terminal device filters the stroke data collected by the pull-wire sensor, and only extracts and displays the displacement data of the hydraulic pile clamp 2 corresponding to the downward movement of the pull wire during the pull-wire pull-up process, while discarding the invalid stroke data generated during the pull-wire pull-back process. The pull-wire pull-back corresponds to the reset action of the hydraulic pile clamp 2. This invalid stroke data is unrelated to the soil penetration depth of the pipe pile 100, ensuring that the displacement information of the hydraulic pile clamp 2 displayed by the terminal device is only the actual progress of the sinking of the pipe pile 100, allowing the operator to accurately grasp the soil penetration depth of the pipe pile 100 and ensuring the quality of the project.
[0025] In this embodiment, the pile driver also includes a connecting seat 6, which is fixedly connected to the bottom surface of the frame body 11. The second sensor 5 includes a rotary encoder and a measuring roller. The measuring roller is fixedly connected to the rotary encoder, which is fixedly connected to the connecting seat 6. The measuring roller is used to contact the pipe pile 100. In practical applications, the hydraulic drive device 3 drives the hydraulic pile clamp 2 to move downwards. The hydraulic pile clamp 2 drives the pipe pile 100 to move downwards and be pressed into the soil. During this process, the pipe pile 100 drives the measuring roller to rotate. The rotation amount of the measuring roller is converted into an electrical signal from the rotary encoder, which is then used to calculate the sinking depth of the pipe pile 100. The rotary encoder is electrically connected to the terminal device, which displays the sinking depth of the pipe pile 100. This type of second sensor 5 has a simple structure and is fixedly connected to the frame body 11 via the connecting seat 6, making it easy to install.
[0026] Furthermore, the connecting seat 6 includes a seat body 61, a connecting ear 62, and a mounting rod 63. The seat body 61 is fixedly connected to the bottom surface of the frame body 11, the connecting ear 62 is welded and fixedly connected to the bottom surface of the seat body 61, and one end of the mounting rod 63 is fixedly connected to the connecting ear 62 along its length direction, and the other end is fixedly connected to the rotary encoder. The mounting rod 63 can be connected to the rotary encoder by screws. This type of connecting seat 6 has a simple structure, is easy to process, and is also convenient for the installation of the second sensor 5.
[0027] Furthermore, the base 61 is welded and fixed to the frame body 11. This method achieves a fixed connection between the base 61 and the frame body 11 without the need for processing the frame body 11. It is convenient and quick to operate. Moreover, when the second sensor 5 is not needed, the connecting base 6 can be separated from the frame body 11 by removing the solder, which is also convenient to operate.
[0028] Furthermore, the connecting lug 62 has a first connecting hole, and the mounting rod 63 has a second connecting hole, with the first and second connecting holes facing each other. The connecting seat 6 also includes a bolt 64 and a nut 65. The bolt 64 passes through the first and second connecting holes and connects with the nut 65 to fix the connecting lug 62 and the mounting rod 63. This method connects the connecting lug 62 and the mounting rod 63, making the connection stable and facilitating the adjustment of the contact between the measuring roller and the pipe pile 100. Specifically, when the pipe pile 100 is hoisted onto the hydraulic pile clamp 2, the measuring roller does not contact the pipe pile 100, and the head of the bolt 64 clamps the connecting lug 62 and the mounting rod 63 with the nut 65. Afterward, the nut 65 is turned to loosen the connection lug 62 and the mounting rod 63. At this time, the mounting rod 63 can be swung to make the measuring roller contact the pipe pile 100. Afterward, the nut 65 is turned again to clamp the connecting lug 62 and the mounting rod 63 with the bolt 64 and the nut 65.
[0029] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A pile driver, characterized in that, The device includes a pile frame (1), a hydraulic pile clamp (2), a hydraulic drive device (3), a first sensor (4), and a second sensor (5). The pile frame (1) has a frame body (11) and a guide frame (12). The guide frame (12) is connected to the top of the frame body (11). The hydraulic pile clamp (2) is connected to the guide frame (12) and can slide vertically. The hydraulic drive device (3) is fixedly connected to the top of the guide frame (12). The output end of the hydraulic drive device (3) is connected to the hydraulic pile clamp (2). The hydraulic drive device (3) is used to drive the hydraulic pile clamp (2) to slide. The first sensor (4) is connected to the guide frame (12) and is used to monitor the displacement of the hydraulic pile clamp (2). The second sensor (5) is connected to the frame body (11) and is used to monitor the stroke of the pipe pile (100).
2. The pile driver according to claim 1, characterized in that, The first sensor (4) is a pull wire sensor, which is fixedly connected to the upper part of the guide frame (12), and the pull wire of the pull wire sensor is fixedly connected to the top surface of the hydraulic pile clamp (2).
3. The pile driver according to claim 1, characterized in that, The pile driver also includes a connecting seat (6), which is fixedly connected to the bottom surface of the frame body (11); The second sensor (5) includes a rotary encoder and a measuring roller. The measuring roller is fixedly connected to the rotary encoder, which is fixedly connected to the connecting seat (6). The measuring roller is used to contact the pipe pile (100).
4. The pile driver according to claim 3, characterized in that, The connecting seat (6) includes a seat body (61), a connecting ear (62) and a mounting rod (63). The seat body (61) is fixedly connected to the bottom surface of the frame body (11). The connecting ear (62) is fixedly connected to the bottom surface of the seat body (61). One end of the mounting rod (63) along its length is fixedly connected to the connecting ear (62), and the other end is fixedly connected to the rotary encoder.
5. The pile driver according to claim 4, characterized in that, The connecting lug (62) has a first connecting hole, and the mounting rod (63) has a second connecting hole, with the first connecting hole and the second connecting hole facing each other. The connecting seat (6) also includes a bolt (64) and a nut (65), the bolt (64) passing through the first connecting hole, the second connecting hole and the nut (65) to fix the connecting lug (62) and the mounting rod (63).
6. The pile driver according to claim 4, characterized in that, The base (61) is welded and fixed to the frame body (11).