Hydraulic pipe pile cutting device

Abstract

The utility model relates to the technical field of pipe pile cutting, in particular to a hydraulic pipe pile cutting device, which outputs hydraulic energy through a hydraulic driving mechanism, converts the hydraulic energy into mechanical energy, provides power for an embracing arm oil cylinder, a rope saw mechanism and a telescopic mechanism, realizes centralized control of pile embracing and cutting processes of the cutting device, realizes light weight of the cutting device, and improves the cutting efficiency. The requirement for a lifting appliance is reduced, power is provided through a hydraulic pipeline, independent arrangement of a hydraulic driving mechanism can be conducted more easily, accurate control over the pile embracing and cutting process of the cutting device above the water surface and below the water surface can be achieved, diving operation is avoided, and the safety of pile cutting operation is improved; compared with an existing pneumatic driving cutting device, hydraulic driving control is more stable, stable control over the pile embracing and cutting process can be achieved, the cutting efficiency and the cutting quality are improved, meanwhile, rotation of the movable embracing arms is adjusted through the embracing arm oil cylinders, the frame body can be changed to be matched with piles of different sizes, and the application range of the cutting device is widened.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile cutting technology, and in particular to a hydraulic pipe pile cutting device. Background Technology

[0002] During the construction, renovation, and expansion of high piers or sheet pile wharves, geological conditions need to be explored and test piles need to be constructed at multiple locations before the construction of the pile foundation project. This is to obtain accurate geological information for the design and research of multiple technical parameters of the engineering piles. When the tubular test piles have a large diameter, thick walls, and long penetration depth, they need to be driven by a hydraulic hammer or diesel hammer. If the test pile is not an engineering pile, it needs to be cut or removed before the project.

[0003] In the complex fields of hydrology and oil and gas construction, the construction technology for pipe pile cutting has extremely stringent safety management and technical requirements. Under conditions of large swells, fast currents, and high navigation frequency, especially when European and American owners strictly prohibit underwater operations for pipe pile cutting, the commonly used underwater pipe pile cutting operation method by divers is prohibited. Chinese invention patent application CN118854916A discloses an unmanned underwater automatic pile foundation cutting device, including a truss main body, a pneumatic pile gripping system, and a diamond wire saw cutting system. It can complete pile foundation cutting without being affected by tides, currents, or water depth, and without the need for divers to go underwater.

[0004] However, existing automatic pipe pile cutting equipment generally controls the pile gripping system and the cutting system separately. The pile gripping system needs to be fully mounted on the pipe pile, resulting in a large overall size of the equipment, higher requirements for lifting tools, and inability to adapt to the cutting of large-sized test piles. At the same time, the use of pneumatic drive to achieve pile gripping is prone to problems with pile gripping stability due to cutting vibration and the cutting process. When operators are working underwater above the water surface, they cannot obtain the cutting status in time, which can easily lead to problems such as rope jamming and free spin, affecting cutting efficiency and cutting quality. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing automatic pipe pile cutting equipment, such as separate control of the pile holding system and the cutting system, large size, inability to adapt to the cutting of large-sized test piles, and inability to obtain the cutting status in a timely manner, and to provide a hydraulic pipe pile cutting device.

[0006] This utility model provides a hydraulic pipe pile cutting device, comprising:

[0007] The frame body includes two push arms, the ends of which are hinged to movable clamping arms, and the movable clamping arms and the frame body are connected by a clamping arm hydraulic cylinder that is hinged together.

[0008] The platform body is equipped with a wire saw mechanism. The platform body is slidably engaged with the frame body, and the frame body and the platform body are connected by a telescopic mechanism.

[0009] The hydraulic drive mechanism includes a hydraulic control box and a hydraulic pump, the hydraulic pump being connected to the arm-clamping cylinder, the wire saw mechanism and the telescopic mechanism via hydraulic pipelines.

[0010] This utility model discloses a hydraulic pipe pile cutting device. The hydraulic drive mechanism converts hydraulic energy into mechanical energy, providing power to the clamping arm cylinder, wire saw mechanism, and telescopic mechanism. This enables centralized control of the pile clamping and cutting process, resulting in a lightweight cutting device that reduces the requirements for lifting equipment. Furthermore, the hydraulic pipeline allows for easier independent configuration of the hydraulic drive mechanism. It enables precise control of the pile clamping and cutting process from above water, avoiding underwater operations and improving safety. Compared to existing pneumatically driven cutting devices, the hydraulic drive control is more stable, providing stable control of the pile clamping and cutting process, improving cutting efficiency and quality. Additionally, by adjusting the rotation of the movable clamping arm through the clamping arm cylinder, the frame body can be adapted to different pile sizes, expanding the cutting device's applicability.

[0011] Preferably, the frame body is a single-layer welded steel rod structure. A single-layer welded structure results in a smaller frame body volume, lower manufacturing costs, reduced requirements for lifting and transportation mechanisms, and lower operating costs.

[0012] Preferably, the platform body is a steel plate component, and the platform body is provided with a clearance groove. The steel plate component has a small platform body thickness, and its own rigidity provides support for the wire saw mechanism, which can further achieve the weight reduction of the cutting device.

[0013] Preferably, the telescopic mechanism includes a hydraulic cylinder, which is located at the top of the rear end of the frame body, and the piston rod of the hydraulic cylinder is connected to the rear end of the platform body. The hydraulic cylinder pushes the platform body relative to the frame body, causing the wire saw mechanism on the platform body to perform pile cutting operations.

[0014] Preferably, the top of the frame body is provided with a guide rail, which is arranged along the push arm, and the bottom of the platform body is provided with a slider, which slides in cooperation with the guide rail. The guide rail and slider configuration allows the platform body to slide smoothly along the guide rail direction, ensuring that the wire saw mechanism does not vibrate or jam during pile cutting, thus improving cutting efficiency and quality.

[0015] Preferably, the wire saw mechanism includes a hydraulic motor, a cutting rope, and several wire pulleys. At least one wire pulley is connected to the hydraulic motor, at least one wire pulley is a tensioning pulley, at least three wire pulleys are spaced apart along the push arm, and several wire pulleys are symmetrically distributed on the platform body. The hydraulic motor is connected to the hydraulic drive mechanism. By forming a wire saw mechanism with at least seven limiting points, the cutting power of the wire saw mechanism can be better applied to the pile being cut, further improving cutting efficiency and cutting quality.

[0016] Preferably, a fixed arm connects the two pushing arms, the fixed arm including an arc-shaped abutment surface, the arc-shaped abutment surface being provided with a plurality of first abutment mechanisms. This ensures a stable fit between the frame body and the pile, guaranteeing the stable placement of the cutting device on the pile.

[0017] Preferably, the movable arm is provided with a second abutment mechanism at its end away from the frame body. This allows the movable arm to stably engage with the pile to be cut via the second abutment mechanism, cooperating with the first abutment mechanism on the fixed arm to form a multi-point hydraulic pile positioning, ensuring the stable placement of the cutting device on the pile.

[0018] Preferably, the frame body is provided with several hanging parts, enabling the cutting device to cut underwater piles under the guidance of the lifting gear.

[0019] Preferably, the frame body and / or the platform body are equipped with a camera mechanism. The camera mechanism allows direct observation of the underwater pile cutting process, ensuring the quality of the pile cutting.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model provides a hydraulic pipe pile cutting device, which outputs hydraulic energy through a hydraulic drive mechanism to convert hydraulic energy into mechanical energy, providing power to the arm-clamping cylinder, wire saw mechanism and telescopic mechanism. It can realize centralized control of the pile clamping and cutting process of the cutting device, achieve lightweight cutting device and reduce the requirements for lifting equipment;

[0022] 2. This utility model provides a hydraulic pipe pile cutting device, which provides power through hydraulic pipelines, making it easier to independently set up the hydraulic drive mechanism. It can achieve precise control of the cutting device above the water surface to hold the pile and cut the pile below the water surface, avoiding underwater operations and improving the safety of pile cutting operations.

[0023] 3. This utility model provides a hydraulic pipe pile cutting device. Compared with the existing pneumatically driven cutting device, the hydraulic drive control is more stable, which can realize stable control of the pile holding and cutting process, and improve cutting efficiency and cutting quality.

[0024] 4. This utility model provides a hydraulic pipe pile cutting device. By adjusting the rotation of the movable arm through the arm cylinder, the frame body can be adapted to piles of different sizes, thus expanding the range of application of the cutting device. Attached Figure Description

[0025] Figure 1 This is a top view of the main frame body described in the embodiment;

[0026] Figure 2 This is a schematic diagram of the structure of the platform body and the wire saw mechanism combination described in the embodiment;

[0027] Figure 3 This is a schematic diagram of the structure of a hydraulic pipe pile cutting device according to the present invention.

[0028] Figure 4 This is a side view of a hydraulic pipe pile cutting device according to the present invention.

[0029] Marked in the image:

[0030] 1-Frame body, 11-Push arm, 12-Guide rail, 13-Fixed arm, 131-Arc-shaped abutment surface, 132-First abutment mechanism, 14-Hanging part;

[0031] 2-Modible arm, 21-Arm cylinder, 22-Second contact mechanism;

[0032] 3-Platform body, 31-Avoidance groove, 32-Slider;

[0033] 4-Wire saw mechanism, 41-Hydraulic motor, 42-Cutting rope, 43-Wire pulley, 44-Tension pulley;

[0034] 5-Telescopic mechanism;

[0035] 6-Hydraulic drive mechanism, 61-Hydraulic control box, 62-Hydraulic pump, 63-Hydraulic pipeline;

[0036] 7-Camera setup. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0038] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0040] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0041] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0042] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0043] Example

[0044] like Figures 1-4 As shown, a hydraulic pipe pile cutting device includes a frame body 1, a platform body 3, a clamping arm cylinder 21, a wire saw mechanism 4, a telescopic mechanism 5, and a hydraulic drive mechanism 6.

[0045] The main frame 1 serves as the structural foundation for the cutting device. Together with the movable arm 2, it forms the pile-holding part, which is used to fix the cutting device to the pile to be cut and to provide a foundation for the installation and movement of the main platform 3.

[0046] In one or more embodiments, the frame body 1 may include two push arms 11, which are arranged in parallel. The extension direction of the push arms 11 is the moving direction of the platform body 3, which is also the pile cutting direction of the cutting device. The end of each push arm 11 is hinged to a movable holding arm 2. The movable holding arm 2 can rotate with the push arm 11 in the plane, forming a holding space between the frame body 1 and the movable holding arm 2 for holding the pile to be cut.

[0047] In an optional embodiment, the frame body 1 can be a single-layer welded steel rod structure. The single-layer welded structure can be a frame structure formed by assembling and welding multiple steel rods in a single layer. This makes the frame body 1 smaller in size, lower in manufacturing cost, and reduces the requirements for lifting and transportation mechanisms, thereby reducing the cost of use.

[0048] In an optional embodiment, the push arm 11 may be two steel components that make up the frame body 1. The push arms 11 extend in parallel, forming a pile-holding space between the two push arms 11 for matching the pile to be cut.

[0049] In an optional embodiment, the frame body 1 can be integrated by adding connecting rods between the two push arms 11, and the distribution of the rods can be adjusted according to the actual situation to ensure the overall structural stability of the frame body 1.

[0050] In one or more embodiments, the frame body 1 may further include a fixed arm 13. The fixed arm 13 may be an arc-shaped rod disposed between two push arms 11 for connecting the two push arms 11. The arc-shaped rod is provided with an arc-shaped abutment surface 131 for abutting against the pile to be cut, thereby realizing the abutment and fixation of the cutting device and the pile to be cut.

[0051] In an optional embodiment, a plurality of first abutment mechanisms 132 may be provided on the arc-shaped abutment surface 131 of the fixed arm 13.

[0052] In an optional embodiment, the first abutment structure 132 may be a high-strength rigid plastic support pad, which can stably abut against the outer surface of the pile to be cut, forming a stable surface contact.

[0053] The arm-clamping cylinder 21 is a telescopic cylinder set between the movable arm-clamping cylinder 2 and the frame body 1. It is used to drive the movable arm-clamping cylinder 2 to rotate relative to the frame body 1, thereby adjusting the size of the pile-clamping space at the front end of the frame body 1 and pressing the pile to be cut, thus achieving stable setting of the cutting device on the pile to be cut.

[0054] In one or more embodiments, the arm-holding cylinder 21 can be hinged at one end to the transverse outer wall of the frame body 1 and at the other end to the tail end of the movable arm 2.

[0055] In an optional embodiment, the movable arm 2 can be a straight arm or an S-shaped curved arm. The two ends of the movable arm 2 form a hinge point with the end of the push arm 11 to achieve a hinged connection. In use, the relative rotation between the movable arm 2 and the frame body 1 can be achieved by extending and retracting the arm cylinder 21, thereby changing the size of the pile-holding space enclosed by the frame body 1 and the movable arm 2.

[0056] In an optional embodiment, the movable arm 2 is preferably a straight arm, and the arm cylinder 21 is hinged to the tail end of the movable arm 2. The hinge point between the movable arm 2 and the frame body 1 is set closer to the arm cylinder 21, so that when the arm cylinder 21 drives the movable arm 2 to rotate, the thrust of the arm cylinder 21 can be maximized through the lever structure formed with the movable arm 2, so that the movable arm 2 can provide greater clamping force to the pile to be cut and improve the pile clamping stability of the cutting device.

[0057] In an optional embodiment, the end of the movable arm 2 away from the frame body 1 may be provided with a second abutment mechanism 22.

[0058] In an optional embodiment, there may be two first abutting mechanisms 132, which, together with the second abutting mechanisms 22 on the two movable arms 2, achieve four-point hydraulic pile positioning, making the positioning of the cutting device more accurate and stable.

[0059] In an optional embodiment, the second abutting mechanism 22 can be a high-strength steel roller, or it can be the same as the first abutting mechanism 132, which can provide stable pressure to the pile to be cut and combine with the second abutting mechanism 22 to form a stable pile holding space.

[0060] The platform body 3 serves as the mounting base for the wire saw mechanism 4, forming the pile cutting section together with the wire saw mechanism 4. The wire saw mechanism 4 is mounted on the platform body 3. The platform body 3 slides with the frame body 1 and is connected to the frame body 1 through the telescopic mechanism 5. Through the telescopic movement of the telescopic mechanism 5, the platform body 3 moves along the frame body 1, causing the wire saw mechanism 4 to move toward or away from the pile to be cut, thereby enabling the wire saw mechanism 4 to perform pile cutting operations.

[0061] In one or more embodiments, the platform body 3 can be a steel plate component. The depth of the clearance groove 31 of the steel plate component platform body 3 can meet the cutting stroke, so that the cutting rope 42 of the wire saw mechanism 4 passes through the clearance groove 31 and can cut the pile that enters the clearance groove 31. In addition, the thickness of the steel plate component platform body 3 is small. Through its own rigidity and its flat top surface, it provides support and installation foundation for the wire saw mechanism 4, which can further realize the lightweighting of the cutting device.

[0062] In an alternative embodiment, the clearance groove 31 may be a blank portion formed by cutting on a steel plate component.

[0063] In one or more embodiments, the top of the frame body 1 may be provided with a guide rail 12, which is set along the push arm 11. The bottom of the platform body 3 may be provided with a slider 32, which slides in cooperation with the guide rail 12. The setting of the guide rail 12 and the slider 32 enables the platform body 3 to slide smoothly along the direction of the guide rail 12, ensuring that the wire saw mechanism 4 does not shake or get stuck during the pile cutting process, thereby improving cutting efficiency and cutting quality.

[0064] The wire saw mechanism 4 is a structure used to complete the cutting action. It is set on the platform body 3 and can be adjusted in position under the drive of the platform body 3, moving closer to or away from the pile to be cut.

[0065] In one or more embodiments, the wire saw mechanism 4 may include a hydraulic motor 41, a cutting rope 42, and a plurality of wire reels 43.

[0066] In an optional embodiment, there may be multiple spools 43, and the cutting rope 42 passes through each spool 43 to form a multi-point limiting wire saw mechanism 4.

[0067] In an optional embodiment, the hydraulic motor 41 can be installed on a support set on the top surface of the platform body 3 and connected to one or two wire pulleys 43 to drive the wire pulleys 43 to rotate, thereby moving the cutting rope 42 and realizing the cutting function of the wire saw.

[0068] In optional implementations, such as Figure 2 As shown, three wire pulleys 43 are spaced apart on the platform body 3 along the direction of the push arm 11. One wire pulley 43 is located at the middle of the tail end of the platform body 3 and is used as a tensioning pulley 44. Two hydraulic motors 41 are respectively connected to two wire pulleys 43 near the tail end of the platform body 3, forming a seven-point limit wire saw mechanism 4 driven by two hydraulic motors 41. This mechanism can better apply the cutting power of the wire saw mechanism 4 to the pile being cut, thereby improving cutting efficiency and cutting quality.

[0069] The telescopic mechanism 5 is a structure that connects the frame body 1 and the platform body 3. It is set along the extension direction of the push arm 11 and is used to realize the relative movement of the frame body 1 and the platform body 3 through its own telescopic action, so as to realize the position adjustment of the wire saw mechanism 4 on the platform body 3 for pile cutting operation.

[0070] In one or more embodiments, the telescopic mechanism 5 may include a hydraulic cylinder, which is located at the top of the tail end of the frame body 1, and the piston rod of the hydraulic cylinder is connected to the tail end of the platform body 3. The hydraulic cylinder pushes the platform body 3 to move relative to the frame body 1, causing the wire saw mechanism 4 on the platform body 3 to perform pile cutting operations.

[0071] In an optional embodiment, a seat for fixing the telescopic mechanism 5 can be provided at the center of the top surface of the frame body 1, so that the telescopic mechanism 5 is limited to the top surface of the frame body 1 and extends and retracts along the centerline of the frame body 1, pushing the platform body 3 to move along the frame body 1, changing the position of the cutting rope 42 of the wire saw mechanism 4 on the platform body 3, thereby realizing the pile cutting operation.

[0072] In an optional embodiment, the tail end of the frame body 1 can be set as an arc surface, which can provide a wider support surface for the telescopic mechanism 5, while the tail end of the platform body 3 can be set as a flat surface, which can provide a more suitable pushing surface for the stable pushing of the telescopic mechanism 5, thereby realizing the stable movement control of the platform body 3 along the frame body 1.

[0073] The hydraulic drive mechanism 6 is a mechanism used to provide driving power for the moving parts of the cutting device. It converts hydraulic energy into mechanical energy to control the movement of the arm-holding cylinder 21, the hydraulic motor 41, and the telescopic mechanism 5. It can make the wire saw mechanism 4 feed more stably through hydraulic energy, and can better judge the working status and speed of the wire saw mechanism 4 through the instrument readings related to the hydraulic drive mechanism 6, so as to avoid the device being damaged by the wire jamming.

[0074] In one or more embodiments, the hydraulic drive mechanism 6 includes a hydraulic control box 61 and a hydraulic pump 62. The hydraulic pump 62 is connected to the arm-clamping cylinder 21, the wire saw mechanism 4 and the telescopic mechanism 5 through a hydraulic pipeline 63, so that the pile-cutting part and the pile-clamping part of the cutting device share a single hydraulic pump 62 station.

[0075] In an optional embodiment, the hydraulic control box 61 and the hydraulic pump 62 can be installed above the water surface. The control of the arm-clamping cylinder 21, the wire saw mechanism 4 and the telescopic mechanism 5 can be realized through the hydraulic pipeline 63 that meets the working distance. This allows the workers on the water to adjust the cutting speed of the wire saw through the hydraulic pump 62, and to promptly detect wire jamming or idling through the reading of the feed pressure gauge on the hydraulic control box 61, so as to prevent damage to the device caused by wire jamming or idling.

[0076] In an optional embodiment, the hydraulic pump 62 can also be installed on the frame body 1 as needed to control the arm-clamping cylinder 21, the wire saw mechanism 4, and the telescopic mechanism 5 nearby.

[0077] In one or more embodiments, the frame body 1 may be provided with a plurality of hanging parts 14, which can be connected to the hook of the lifting device so that the cutting device can be lifted and lowered under the guidance of the lifting device to realize the cutting of underwater piles.

[0078] In an alternative embodiment, the hanging part 14 may be a steel component with a height exceeding that of the frame body 1 and has perforated lifting lugs.

[0079] In an optional embodiment, there may be multiple hanging parts 14, such as... Figure 1 As shown, four hanging parts 14 can be distributed around the frame body 1. The hanging parts 14 are preferably distributed on the horizontal sides of the frame body 1 to avoid affecting the operation of the telescopic mechanism 5. At the same time, the spacing between adjacent hanging parts 14 can be set according to the overall center of gravity of the frame body 1 to ensure that the frame body 1 can be lifted in a horizontal state.

[0080] In one or more embodiments, the frame body 1 and / or platform body 3 may be equipped with camera mechanisms according to actual conditions. The camera mechanisms allow direct observation of the underwater pile cutting status, ensuring the quality of pile cutting.

[0081] In an optional implementation, the camera mechanism can be a high-definition underwater camera mounted on the frame body 1, which can capture the pile cutting process in real time and transmit the image to the surface via wired or wireless means.

[0082] This embodiment of a hydraulic pipe pile cutting device converts hydraulic energy into mechanical energy through a hydraulic drive mechanism 6, providing power to the arm-clamping cylinder 21, the wire saw mechanism 4, and the telescopic mechanism 5. This enables centralized control of the pile-clamping and cutting processes, resulting in a lightweight cutting device that reduces the requirements for lifting equipment. Furthermore, the hydraulic pipeline 63 provides power, allowing for easier independent configuration of the hydraulic drive mechanism 6. This enables precise control of the pile-clamping and cutting processes from above the water surface, avoiding underwater operations and improving safety. Compared to existing pneumatically driven cutting devices, hydraulic drive control is more stable, providing stable control of the pile-clamping and cutting processes, improving cutting efficiency and quality. Simultaneously, by adjusting the rotation of the movable arm 2 through the arm-clamping cylinder 21, the frame body 1 can be adapted to different pile sizes, expanding the cutting device's applicability to various working conditions, including above-water and underwater steel pipe piles, concrete piles, and gravel piles.

[0083] This embodiment describes a hydraulic pipe pile cutting device, taking underwater pipe pile cutting as an example. During use, a ship-mounted crawler crane hoists the cutting device onto the outer wall of the pipe pile to be cut. The two clamping cylinders 21 retract to maximize the clamping space, and the telescopic mechanism 5 retracts to its initial position. The crane then lowers the cutting device underwater to the mud surface elevation along the outer wall of the pipe pile, ensuring the device reaches the designated position. The clamping cylinders 21 extend to clamp the pipe pile, achieving a fixed connection between the cutting device and the pile. The crane's main hook pre-lifts the pipe pile to be cut from above to prevent rope breakage or equipment damage during the cutting process. The hydraulic motor 41 then drives the cutting rope 42, and the telescopic cylinders simultaneously push the platform body 3 towards the pipe pile for cutting operations. Cutting continues until the pressure of the telescopic mechanism 5 returns to zero, indicating the cutting is complete. After the cutting operation is finished, the telescopic mechanism 5 is closed, and the cutting device and the cut pipe pile are simultaneously lifted and disassembled by the main and auxiliary hooks of the crawler crane.

[0084] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic pipe pile cutting device, characterized in that, include: The frame body (1) includes two push arms (11), and the ends of the push arms (11) are hinged to movable clamping arms (2). The movable clamping arms (2) and the frame body (1) are connected by a clamping arm cylinder (21) that is hinged to each other. Platform body (3), the platform body (3) is provided with a wire saw mechanism (4), the platform body (3) is slidably engaged with the frame body (1), and the frame body (1) and the platform body (3) are connected by a telescopic mechanism (5); The hydraulic drive mechanism (6) includes a hydraulic control box (61) and a hydraulic pump (62), wherein the hydraulic pump (62) is connected to the arm-clamping cylinder (21), the wire saw mechanism (4) and the telescopic mechanism (5) through a hydraulic pipeline (63).

2. The hydraulic pipe pile cutting device according to claim 1, characterized in that, The main frame (1) is a single-layer welded steel rod structure.

3. The hydraulic pipe pile cutting device according to claim 2, characterized in that, The platform body (3) is a steel plate component, and the platform body (3) is provided with a clearance groove (31).

4. The hydraulic pipe pile cutting device according to claim 3, characterized in that, The telescopic mechanism (5) includes a hydraulic cylinder, which is located at the top of the tail end of the frame body (1), and the piston rod of the hydraulic cylinder is connected to the tail end of the platform body (3).

5. A hydraulic pipe pile cutting device according to claim 4, characterized in that, The frame body (1) is provided with a guide rail (12) at the top, the guide rail (12) is arranged along the push arm (11), and the platform body (3) is provided with a slider (32) at the bottom, the slider (32) and the guide rail (12) are slidably engaged.

6. A hydraulic pipe pile cutting device according to claim 3, characterized in that, The wire saw mechanism (4) includes a hydraulic motor (41), a cutting rope (42), and a number of wire pulleys (43). At least one of the wire pulleys (43) is connected to the hydraulic motor (41), and at least one of the wire pulleys (43) is a tensioning pulley (44). At least three of the wire pulleys (43) are distributed at intervals along the push arm (11), and a number of the wire pulleys (43) are symmetrically distributed on the platform body (3). The hydraulic motor (41) is connected to the hydraulic drive mechanism (6).

7. A hydraulic pipe pile cutting device according to claim 2, characterized in that, A fixed arm (13) is connected between the two pushing arms (11). The fixed arm (13) includes an arc-shaped abutment surface (131), and the arc-shaped abutment surface (131) is provided with a plurality of first abutment mechanisms (132).

8. A hydraulic pipe pile cutting device according to claim 7, characterized in that, The movable arm (2) is provided with a second abutment mechanism (22) at the end away from the frame body (1).

9. A hydraulic pipe pile cutting device according to claim 1, characterized in that, The main frame (1) is provided with several hanging parts (14).

10. A hydraulic pipe pile cutting device according to any one of claims 1-9, characterized in that, The frame body (1) and / or the platform body (3) are equipped with camera mechanisms.

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