Tubular pile pulling machine

Abstract

The utility model discloses a tubular pile pulling machine which comprises a tubular pile pulling machine frame and a tubular pile holding mechanism. The tubular pile pulling machine is efficient in pile pulling operation. A core hydraulic oil cylinder and an auxiliary hydraulic oil cylinder are used in cooperation. The core hydraulic oil cylinder is responsible for vertical movement of the tube drawing bench rack, and the auxiliary hydraulic oil cylinder is used for controlling the tubular pile holding mechanism. When the pipe pile is pulled out, the arc-shaped toothed plate tightly holds the pipe pile through the auxiliary hydraulic oil cylinder, and then the core hydraulic oil cylinder extends to drive the machine frame of the pipe pulling machine to move upwards, so that the pipe pile is pulled out. The lower side of the core circular frame is connected with a plurality of connecting rotating frames in a hinged mode, the outer sides of toothed plate bases on the lower sides of the connecting rotating frames are located in sliding grooves, and base plates and arc-shaped toothed plates are fixed to the inner sides of the toothed plate bases. By means of the structure, when the auxiliary hydraulic oil cylinder works, the toothed plate base can accurately move along the sliding groove of the supporting part of the guide rail, and therefore the arc-shaped toothed plate is driven to tightly hold a pipe pile.

Description

Technical Field

[0001] This utility model relates to pipe pile extraction, specifically a pipe pile extraction machine. Background Technology

[0002] In building construction, bridge construction, and some foundation engineering projects, the removal of pipe piles is a crucial step. Traditional pipe pile extraction machines have many problems in their operation.

[0003] In early pipe pile extraction operations, there was often a lack of clear functional division of labor. Many pile extractors used a single power source or a simple mechanical structure to achieve the clamping and extraction of pipe piles, without dedicated control and execution components designed for these two key actions. For example, some pile extractors might rely solely on simple mechanical clamps to clamp the pipe piles and then extract them using an integrated lifting device, resulting in low efficiency.

[0004] Therefore, there is an urgent need for a better pipe pile extraction machine on the market. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a pipe pile extraction machine.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a pipe pile extraction machine: including a pipe extraction machine frame;

[0007] The tube-extraction machine frame includes an upper core frame section, the middle of which is a circular hole, and the lower part of which is provided with a guide rail support section;

[0008] The inner side of the guide rail support is inclined, and the inner side of the guide rail support is a sliding groove;

[0009] The guide rail support is a number of parts and is evenly arranged around the edge of the circular hole of the upper core frame. The bottom of the guide rail support is fixedly provided with a bottom support frame.

[0010] It also includes a pipe pile clamping mechanism, which includes a core circular frame located in a circular hole in the middle of the upper core frame. A connecting rotating frame is provided on the lower side of the core circular frame via a hinged connection. Several connecting rotating frames are evenly distributed on the lower side of the core circular frame. A toothed plate seat is provided on the lower side of the connecting rotating frame via a hinged connection. The outer side of the toothed plate seat is located within a sliding groove. A pad is fixedly provided on the inner side of the toothed plate seat, and an arc-shaped toothed plate is fixedly provided on the inner side of the pad.

[0011] The upper core frame is symmetrically provided with upper support frames on both sides; the upper lower side of the upper support frame is provided with an auxiliary hydraulic cylinder by a hinged connection. The core of the auxiliary hydraulic cylinder and the upper lower side of the upper support frame are connected by a hinged connection. The telescopic part of the auxiliary hydraulic cylinder extends downward and the lower end of the telescopic part of the auxiliary hydraulic cylinder is fixedly connected to the core circular frame.

[0012] The upper core frame is symmetrically provided with core hydraulic cylinders on both sides. The core part of the core hydraulic cylinder is fixedly connected to the side part of the upper core frame, and the telescopic part of the core hydraulic cylinder extends downward.

[0013] As an improvement, a support block is fixedly provided at the lower part of the telescopic part of the core hydraulic cylinder.

[0014] As an improvement, the tube pulling machine frame also includes a slide frame body, which is fixed on the upper core frame part. A guide column is fixed on the upper side of the core circular frame. The guide column is located in the slide frame body and slides in the slide frame body. The extension direction of the guide column is perpendicular to the plane where the core circular frame is located.

[0015] The upper core frame is provided with lifting lugs, and the number of lifting lugs is several and they are evenly distributed on the tube pulling machine frame.

[0016] As an improvement, the distance between the axis of the sliding groove and the circular hole decreases linearly from the upper part of the guide rail support to the lower part of the guide rail support.

[0017] The advantages of this invention compared to existing technologies are: highly efficient pile extraction operation: the coordinated use of a core hydraulic cylinder and an auxiliary hydraulic cylinder. The core hydraulic cylinder is responsible for the vertical movement of the pipe extraction machine frame, while the auxiliary hydraulic cylinder controls the pipe pile clamping mechanism. During pile extraction, the auxiliary hydraulic cylinder first clamps the pipe pile with an arc-shaped toothed plate, and then the core hydraulic cylinder extends, driving the pipe extraction machine frame upward to extract the pipe pile. This clearly defined division of labor makes the pile extraction operation highly efficient and orderly, improving the speed and efficiency of pile extraction.

[0018] Stable Pipe Pile Clamping: The pipe pile clamping mechanism features a unique structural design. Multiple connecting rotating frames are hinged to the lower side of the core circular frame. The outer side of the toothed plate seat on the lower side of the connecting rotating frames is located within a sliding groove, while the inner side has a fixed pad and an arc-shaped toothed plate. This structure allows the toothed plate seat to move precisely along the sliding groove of the guide rail support when the auxiliary hydraulic cylinder is working, thereby driving the arc-shaped toothed plate to clamp the pipe pile. Because the distance between the axis of the sliding groove and the circular hole decreases linearly from the upper to the lower part of the guide rail support, it ensures uniform force distribution and stable clamping effect when the arc-shaped toothed plate clamps the pipe pile, effectively preventing loosening or slippage of the pipe pile during extraction.

[0019] Excellent structural stability: The structural design of the pipe extraction machine frame contributes to overall stability. The combination of components such as the upper core frame, guide rail support, and bottom support frame constructs a robust frame structure. The guide rail support is evenly distributed around the edge of the circular hole in the upper core frame and connected to the bottom support frame, ensuring the stability of the entire pipe extraction machine frame under the tension and pressure during pile extraction. This prevents deformation or tipping, guaranteeing the safe operation of the pile extraction work. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a pipe pile extraction machine according to this utility model. Figure 1 .

[0021] Figure 2 This is a three-dimensional structural diagram of a pipe pile extraction machine according to this utility model. Figure 2 .

[0022] Figure 3 This is a schematic diagram of the main structure of a pipe pile extraction machine according to this utility model.

[0023] Figure 4 This is a side view of the structure of a pipe pile extraction machine according to the present invention.

[0024] Figure 5 This is a schematic diagram of the internal structure of a pipe pile extraction machine according to this utility model. Figure 1 .

[0025] Figure 6 This is a schematic diagram of the internal structure of a pipe pile extraction machine according to this utility model. Figure 2 . Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0030] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Referring to the accompanying drawings, a pipe pile extraction machine includes a pipe extraction machine frame 1, wherein the pipe extraction machine frame 1 includes an upper core frame section 2, the middle of which has a circular hole, and the lower part of the upper core frame section 2 is provided with a guide rail support section 3.

[0032] The inner side of the guide rail support 3 is inclined, and the inner side of the guide rail support 3 is a sliding groove 4. The distance between the sliding groove 4 and the axis of the circular hole decreases linearly from the upper part of the guide rail support 3 to the lower part of the guide rail support 3.

[0033] The number of guide rail support parts 3 is several and they are evenly arranged around the edge of the circular hole of the upper core frame part 2. The bottom of the several guide rail support parts 3 is fixedly provided with a bottom support frame 5.

[0034] It also includes a pipe pile clamping mechanism, which includes a core circular frame 6 located in a circular hole in the middle of the upper core frame 2. A connecting rotating frame 7 is provided on the lower side of the core circular frame 6 via a hinged connection. Several connecting rotating frames 7 are evenly distributed on the lower side of the core circular frame 6. A toothed plate seat 8 is provided on the lower side of the connecting rotating frame 7 via a hinged connection. The outer side of the toothed plate seat 8 is located within a sliding groove 4. A pad 9 is fixedly provided on the inner side of the toothed plate seat 8, and an arc-shaped toothed plate 10 is fixedly provided on the inner side of the pad 9.

[0035] The upper core frame 2 is symmetrically provided with upper support frame 11 on both sides; the upper and lower sides of the upper support frame 11 are provided with auxiliary hydraulic cylinder 12 by a hinged connection. The core part of the auxiliary hydraulic cylinder 12 and the upper and lower sides of the upper support frame 11 are connected by a hinged connection. The telescopic part of the auxiliary hydraulic cylinder 12 extends downward, and the lower end of the telescopic part of the auxiliary hydraulic cylinder 12 is fixedly connected to the core circular frame 6.

[0036] The upper core frame 2 is symmetrically provided with core hydraulic cylinders 13 on both sides. The core part of the core hydraulic cylinder 13 is fixedly connected to the side part of the upper core frame 2. The telescopic part of the core hydraulic cylinder 13 extends downward. The lower part of the telescopic part of the core hydraulic cylinder 13 is fixedly provided with a support block 14. The support block 14 is used to support on a support, such as a support plate, placed on the ground.

[0037] The tube pulling machine frame 1 also includes a slide frame 15, which is fixed on the upper core frame 2. A guide column 16 is fixed on the upper side of the core circular frame 6. The guide column 16 is located inside the slide frame 15 and slides within the slide frame 15. The extending direction of the guide column 16 is perpendicular to the plane of the core circular frame 6.

[0038] The upper core frame 2 is provided with lifting lugs 17, and the number of lifting lugs 17 is several and they are evenly arranged on the tube pulling machine frame 1.

[0039] Installation and preparation phase:

[0040] Pipe pile extraction machine hoisting: First, operate a crane or other construction machinery with lifting capabilities, such as a truck crane, to accurately hook the hook onto the evenly distributed lifting lugs 17 on the upper core frame section 2. During this process, ensure the hook and lifting lugs 17 are securely connected to prevent detachment during hoisting.

[0041] Positioning the pipe pile extractor: Move the pipe pile extractor frame 1 to a suitable position near the pipe pile, so that the central circular hole of the upper core frame section 2 and the pipe pile clamping mechanism can be aligned with the pipe pile body. A suitable position here refers to a position that facilitates subsequent pipe pile operations while ensuring the stability of the extractor itself.

[0042] A support block 14 is fixedly installed at the lower part of the telescopic part of the core hydraulic cylinder 13. The support block 14 is placed on a support, such as a pre-prepared support plate, which is placed on the ground. When placing the support block 14, it is necessary to ensure that the support block 14 is in full contact with the support plate, and the support plate should be placed on a flat and solid ground to prevent the pile extractor from tilting during the pile extraction process.

[0043] Initial positioning of the pipe pile and the pile extractor: Adjust the position of the pile extractor so that the pipe pile passes through the circular hole in the middle of the upper core frame section 2 and the pipe pile clamping mechanism, that is, accurately place the pipe pile inside the circular hole in the middle of the upper core frame section 2 and the pipe pile clamping mechanism. During this process, manual observation can be conducted to ensure that the relative positions of the pipe pile and the pile extractor are accurate.

[0044] Pipe pile clamping stage:

[0045] Activate auxiliary hydraulic cylinder 12: Use an external control device, such as a hydraulic control console, to control the extension of auxiliary hydraulic cylinder 12. The core of auxiliary hydraulic cylinder 12 is hinged to the upper and lower parts of the upper support frame 11. When auxiliary hydraulic cylinder 12 extends, the upper support frame 11 moves downward. Note that when controlling the extension of auxiliary hydraulic cylinder 12, the control device should be operated slowly to ensure that all components move in the intended manner.

[0046] Because the lower side of the core circular frame 6 is provided with several evenly distributed connecting rotating frames 7 by a hinged connection, and the lower side of the connecting rotating frames 7 is provided with a toothed plate seat 8 by a hinged connection, and the outer side of the toothed plate seat 8 is located in the sliding groove 4 inside the guide rail support part 3, and the distance between the sliding groove 4 and the axis of the circular hole decreases linearly from the upper part of the guide rail support part 3 to the lower part of the guide rail support part 3, when the upper support frame 11 moves downward, the toothed plate seat 8 will move inward.

[0047] A pad 9 is fixedly installed on the inner side of the toothed plate seat 8, and an arc-shaped toothed plate 10 is fixedly installed on the inner side of the pad 9. When the toothed plate seat 8 moves inward, the arc-shaped toothed plate 10 gradually approaches the pipe pile body, eventually clamping the pipe pile body. During this process, the clamping can be judged by observing the gradual reduction of the gap between the arc-shaped toothed plate 10 and the pipe pile body until the arc-shaped toothed plate 10 is tightly attached to the surface of the pipe pile body. After the arc-shaped toothed plate 10 clamps the pipe pile body, the extension operation of the auxiliary hydraulic cylinder 12 is stopped.

[0048] Pipe pile extraction stage:

[0049] Activate the core hydraulic cylinder 13: The core hydraulic cylinder 13 is extended using an external control device. The core of the core hydraulic cylinder 13 is fixedly connected to the side of the upper core frame 2. When the core hydraulic cylinder 13 extends, the pipe-pulling machine frame 1 moves upward. Since the arc-shaped toothed plate 10 has already gripped the pipe pile body, the upward movement of the pipe-pulling machine frame 1 will pull the pipe pile body upward. During this process, the pipe pile extraction should be continuously observed to ensure that it is pulled out in the expected direction and speed. For example, graduations can be marked on the pipe pile, and the extraction distance can be determined by observing the changes in the graduations.

[0050] During pile extraction, it is crucial to monitor the pressure of the core hydraulic cylinder 13. Excessive pressure may damage components of the pile extractor or cause excessive compression and damage to the pipe pile. The pressure can be monitored using a pressure sensor in the hydraulic system. If the pressure exceeds the set safety value, operation must be paused to check for any abnormalities, such as whether the pipe pile is stuck.

[0051] Pipe pile release and pile extractor reset stage:

[0052] Pipe pile release: After the pipe pile has been pulled out a certain distance, the auxiliary hydraulic cylinder 12 is shortened using external control equipment. Since the lower end of the telescopic section of the auxiliary hydraulic cylinder 12 is fixedly connected to the core circular frame 6, when the auxiliary hydraulic cylinder 12 shortens, it will drive the connecting rotating frame 7, toothed plate seat 8, and other components to move in the opposite direction, causing the arc-shaped toothed plate 10 to no longer grip the pipe pile body, thereby releasing the pipe pile body. During this process, the control equipment must also be operated slowly to prevent sudden loosening of components and potential collision damage.

[0053] Reset of the pile extractor: The core hydraulic cylinder 13 is shortened using an external control device. Due to the relationship between the telescopic part of the core hydraulic cylinder 13 and the pipe extractor frame 1, the pipe extractor frame 1 will move downwards and return to near its initial position when the core hydraulic cylinder 13 shortens. During this process, it is important to ensure that all components of the pile extractor can be reset smoothly. For example, check whether the guide column 16 can slide normally within the slide frame 15. If any jamming is found, inspection and repair are required.

[0054] Repeat the operation: Following the above steps, repeatedly perform the operations of clamping, pulling out, releasing, and resetting the pile extractor until the pile body is completely pulled out. Before each repetition, check whether all components of the pile extractor are in normal condition, such as whether there is leakage in the hydraulic cylinder and whether the hinges are loose.

[0055] Efficient pile extraction operation: The core hydraulic cylinder 13 and the auxiliary hydraulic cylinder 12 work together. The core hydraulic cylinder 13 is responsible for the up-and-down movement of the pipe extraction machine frame 1, while the auxiliary hydraulic cylinder 12 controls the pipe pile clamping mechanism. During pile extraction, the auxiliary hydraulic cylinder 12 first clamps the pipe pile with the arc-shaped toothed plate 10, and then the core hydraulic cylinder 13 extends, driving the pipe extraction machine frame 1 upward to pull out the pipe pile. This clearly defined division of labor makes the pile extraction operation efficient and orderly, improving the speed and efficiency of pile extraction.

[0056] Stable Pipe Pile Clamping: The pipe pile clamping mechanism features a unique structural design. Multiple connecting rotating frames 7 are hinged to the lower side of the core circular frame 6. The outer side of the toothed plate seat 8 on the lower side of the connecting rotating frame 7 is located within the sliding groove 4, while the inner side is fixed with a pad 9 and an arc-shaped toothed plate 10. This structure allows the toothed plate seat 8 to move precisely along the sliding groove 4 of the guide rail support 3 when the auxiliary hydraulic cylinder 12 is working, thereby driving the arc-shaped toothed plate 10 to clamp the pipe pile. Because the distance between the sliding groove 4 and the axis of the circular hole decreases linearly from the upper to the lower part of the guide rail support 3, the arc-shaped toothed plate 10 is subjected to uniform force when clamping the pipe pile, resulting in a stable clamping effect and effectively preventing the pipe pile from loosening or slipping during extraction.

[0057] Excellent structural stability: The structural design of the pipe extraction machine frame 1 contributes to overall stability. The combination of components such as the upper core frame section 2, the guide rail support section 3, and the bottom support frame 5 constructs a robust frame structure. The guide rail support section 3 is evenly distributed around the edge of the circular hole in the upper core frame section 2 and connected through the bottom support frame 5, ensuring that the entire pipe extraction machine frame 1 remains stable when subjected to tensile and compressive forces during the pile extraction process, preventing deformation or tipping and guaranteeing the safe operation of the pile extraction work.

[0058] Flexible Guiding and Limiting: The symmetrically arranged components on both sides of the pipe pulling machine frame 1 provide flexible guiding and limiting functions. For example, the hinged connection between the upper support frame 11 and the auxiliary hydraulic cylinder 12 provides stable support for the extension and retraction of the auxiliary hydraulic cylinder 12 and limits its direction of movement. At the same time, the guide column 16 fixed on the upper side of the core circular frame 6 slides within the slide frame 15, ensuring the stable vertical movement of the core circular frame 6, avoiding deviation caused by lateral forces during pile extraction, and improving the accuracy of the entire pile extraction process.

[0059] Convenient hoisting and installation: The evenly distributed lifting lugs 17 on the pipe pile extractor frame 1 facilitate hoisting operations. At the construction site, cranes and other equipment can be easily used to hoist the pipe pile extractor to a suitable position for installation via the lifting lugs 17. This design simplifies the equipment installation process, reduces installation time and labor costs, and improves the equipment's applicability to different construction sites.

[0060] Reliable support and adaptability: The lower part of the telescopic section of the core hydraulic cylinder 13 is equipped with a support block 14, which can be supported on a support plate or other support. This design provides reliable support for the pipe pile extraction machine frame 1, dispersing the pressure during pile extraction, and also enables the pipe pile extraction machine to adapt to different construction site conditions. Whether the ground is relatively soft or solid, as long as the support is selected appropriately, the stable operation of the pile extraction machine can be guaranteed, enhancing the environmental adaptability of the equipment.

[0061] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A pipe pile extraction machine, characterized in that: Includes the tube-pulling machine frame (1); The tube pulling machine frame (1) includes an upper core frame part (2), the middle part of the upper core frame part (2) is a circular hole, and the lower part of the upper core frame part (2) is provided with a guide rail support part (3). The inner side of the guide rail support (3) is inclined, and the inner side of the guide rail support (3) is a sliding groove (4); The number of the guide rail support parts (3) is several and they are evenly arranged around the edge of the circular hole of the upper core frame part (2). The bottom of the several guide rail support parts (3) is fixedly provided with a bottom support frame (5). It also includes a pipe pile clamping mechanism, which includes a core circular frame (6), the core circular frame (6) is located in the circular hole in the middle of the upper core frame part (2), the lower side of the core circular frame (6) is provided with a connecting rotating frame (7) by a hinged connection, the number of the connecting rotating frames (7) is several and they are evenly arranged on the lower side of the core circular frame (6); the lower side of the connecting rotating frame (7) is provided with a toothed plate seat (8) by a hinged connection, the outer side of the toothed plate seat (8) is located in the sliding groove (4); the inner side of the toothed plate seat (8) is fixedly provided with a pad (9), and the inner side of the pad (9) is fixedly provided with an arc-shaped toothed plate (10); The upper core frame (2) is symmetrically provided with upper support frame (11) on both sides; the upper lower side of the upper support frame (11) is provided with an auxiliary hydraulic cylinder (12) by a hinged connection. The core of the auxiliary hydraulic cylinder (12) and the upper lower side of the upper support frame (11) are connected by a hinged connection. The telescopic part of the auxiliary hydraulic cylinder (12) extends downward. The lower end of the telescopic part of the auxiliary hydraulic cylinder (12) is fixedly connected to the core circular frame (6). The upper core frame part (2) is symmetrically provided with core hydraulic cylinders (13) on both sides. The core part of the core hydraulic cylinder (13) is fixedly connected to the side part of the upper core frame part (2), and the telescopic part of the core hydraulic cylinder (13) extends downward.

2. The pipe pile extraction machine according to claim 1, characterized in that: A support block (14) is fixedly provided at the lower part of the telescopic part of the core hydraulic cylinder (13).

3. The pipe pile extraction machine according to claim 1, characterized in that: The tube pulling machine frame (1) also includes a slide frame (15), which is fixed on the upper core frame (2). A guide column (16) is fixed on the upper side of the core circular frame (6). The guide column (16) is located inside the slide frame (15) and slides within the slide frame (15). The extension direction of the guide column (16) is perpendicular to the plane of the core circular frame (6). The upper core frame (2) is provided with lifting lugs (17), and the number of lifting lugs (17) is several and they are evenly arranged on the tube pulling machine frame (1).

4. A pipe pile extraction machine according to claim 1, characterized in that: The distance between the sliding groove (4) and the axis of the circular hole decreases linearly from the upper part of the guide rail support (3) to the lower part of the guide rail support (3).

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