A pile head cutting device for CFG piles

Abstract

This disclosure provides a pile head cutting device for CFG piles. In one specific embodiment, the pile head cutting device includes: a mounting plate fixedly installed on the mobile platform, and a cutting assembly; a clamping mechanism is fixedly installed on the mounting plate. In this embodiment, the clamping mechanism provides stable radial constraint and achieves full-coverage clamping of the pile body through two sets of arc-shaped clamps. Multiple third telescopic cylinders distributed circumferentially along the arc-shaped clamps further uniformly apply clamping force. Compared to traditional line contact clamps, this significantly increases the contact area, effectively suppresses the formation of sawing vibration transmission paths, and improves the flatness and accuracy of the cut surface. The hinged structure of the moving part and the fixed part, combined with the guide rail walking system of the mobile platform, greatly improves cutting efficiency. In particular, the clamping action of the third telescopic cylinders, compared to manual tightening, offers a high degree of automation and high clamping efficiency, effectively improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a pile head cutting device for CFG piles. Background Technology

[0002] CFG piles (cement fly ash gravel piles) are composite foundation reinforcements formed by high-strength mixing of cement, fly ash, gravel, and sand and gravel aggregates. The accuracy of the pile head elevation directly affects the collaborative bearing capacity of the pile foundation and the superstructure.

[0003] After the CFG pile head is manufactured, its height needs to be tested. Since a pile head that is too high or too low will affect the connection between the pile and the foundation and its bearing capacity, the CFG pile needs to be cut if the pile head is too high.

[0004] Traditional cutting methods often employ a mobile trolley carrying the cutting machine, which has significant technical drawbacks: First, when manually pushing the machine for cutting, the equipment's trajectory is easily affected by ground unevenness, causing the cutting line to deviate. Second, the pile body lacks radial restraint devices, and under the radial cutting force of the saw blade, the pile head is prone to slight vibration, directly causing the cross-sectional waviness to exceed the standard. More seriously, traditional clamps often use planar clamping structures or rope clamping methods. This line contact mode with the cylindrical pile body is difficult to form an effective gripping force, which is the main cause of cross-sectional tilting. Summary of the Invention

[0005] This utility model provides a pile head cutting device for CFG piles to solve the technical problems mentioned above in traditional cutting methods, such as low cutting accuracy, easy shaking of the pile head, poor clamping stability, and substandard flatness and perpendicularity of the cutting surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a pile head cutting device for CFG piles, including a mobile platform, and further comprising:

[0008] A mounting plate and a cutting assembly are fixedly installed on the mobile platform;

[0009] A clamping mechanism is fixedly installed on the mounting plate;

[0010] The clamping mechanism includes a fixed part and a movable part;

[0011] The fixed part is fixedly connected to the mounting plate, and the movable part is rotatably connected to the fixed part;

[0012] The fixed part and the movable part are respectively provided with arc-shaped clamping assemblies; the arc-shaped clamping assembly includes an arc-shaped clamp and a plurality of third telescopic cylinders distributed circumferentially along the arc-shaped clamp;

[0013] The arc-shaped openings of the two arc-shaped clamps are arranged opposite each other. The mounting plate is also provided with a limiting mechanism. The movable part (5) is locked to the relative position with the fixed part by the limiting mechanism so as to achieve the clamping and closing of the arc-shaped clamp on the pile head.

[0014] The telescopic end of the third telescopic cylinder faces the clamping center to clamp the pile head;

[0015] The cutting assembly is positioned between the clamping mechanism and the moving platform to cut the clamped pile head.

[0016] Preferably, the fixing part includes a fixing rod fixed to the mounting plate and a first connecting rod with one end fixedly connected to the fixing rod;

[0017] The movable part includes a rotating rod rotatably connected to the fixed rod and a second connecting rod with one end fixedly connected to the rotating rod;

[0018] The other end of the second connecting rod is fixedly connected to an arc-shaped clamp;

[0019] The other end of the first connecting rod is fixedly connected to another arc-shaped clamp;

[0020] Preferably, the limiting mechanism includes a limiting plate and at least one limiting rod disposed on the mounting plate, wherein the limiting plate is coaxially disposed with the fixing rod and the fixing rod passes through the limiting plate and is rotatably connected to the limiting plate;

[0021] The rotating rod is fixedly connected to the limiting plate;

[0022] The limiting plate is uniformly provided with a plurality of first limiting holes for cooperating with the limiting rod in the circumferential direction; the mounting plate is provided with a plurality of second limiting holes for cooperating with the first limiting holes and the limiting rod.

[0023] The limiting rod is configured to pass through the first limiting hole and the corresponding second limiting hole respectively to restrict the rotation of the limiting disc, thereby locking the relative position of the movable part and the fixed part.

[0024] Preferably, there are multiple limiting rods.

[0025] Preferably, the telescopic end of the third telescopic cylinder is fixed with a spherical elastic contact head; the surface of the spherical elastic contact head is provided with anti-slip texture.

[0026] Preferably, the cutting equipment further includes a cooling component, which includes a water tank, a water pump, and a spray component connected in sequence.

[0027] The spray assembly includes a plurality of spray heads arranged circumferentially along the inner arcuate surface of the arcuate clamp;

[0028] The water tank is fixedly installed on the mobile platform;

[0029] The water pump is used to draw water from the water tank and spray it out through multiple spray heads.

[0030] Preferably, the inner surface of the arc-shaped clamp protrudes inward along the arc-shaped edges on both sides of the clamp to form a protrusion.

[0031] Preferably, the spray head is located between the third telescopic cylinder and the protrusion near the cutting assembly, and the spray head is disposed close to the protrusion.

[0032] Preferably, the cutting assembly includes a cutting machine and a multi-axis displacement device;

[0033] The fixed side of the multi-axis displacement device is fixed to the moving platform;

[0034] The cutting machine is mounted on the movable side of the multi-axis displacement device, so that the multi-axis displacement device drives the cutting machine to perform multi-axis displacement.

[0035] Preferably, the multi-axis displacement device includes a lifting plate and a plurality of first telescopic cylinders;

[0036] The fixed end of the first telescopic cylinder is fixedly connected to the mobile platform, and the telescopic end of the first telescopic cylinder is fixedly connected to the lifting plate. Multiple second telescopic cylinders are fixedly mounted in parallel on the lifting plate, and the cutting machine is fixedly connected to the telescopic end of the second telescopic cylinder.

[0037] The beneficial effects of this disclosure are as follows:

[0038] The clamping mechanism in this disclosure provides stable radial constraint and achieves 360° full-coverage clamping of the pile body through two sets of arc-shaped clamps. Multiple third telescopic cylinders distributed circumferentially along the arc-shaped clamps further uniformly apply clamping force. Compared to traditional line-contact clamps (which only generate localized line pressure), this invention significantly increases the contact area and effectively suppresses the formation of sawing vibration transmission paths. This embodiment effectively solves the problem of excessive cross-sectional ripples caused by cutting vibration, thereby improving the flatness and accuracy of the cut surface.

[0039] The articulated structure of the moving and fixed parts, combined with the guide rail walking system of the mobile platform, greatly improves cutting efficiency. In particular, the clamping action of the third telescopic cylinder, compared with manual clamping, significantly automates the clamping operation, resulting in higher clamping efficiency and effectively improving construction efficiency.

[0040] The clamping mechanism and cutting components are fixedly installed on the mobile platform, avoiding the problem of cutting line deviation caused by uneven ground in traditional mobile trolley-type cutting equipment. Attached Figure Description

[0041] The specific embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0042] Figure 1 This is a schematic diagram of the overall structure of the CFG pile head cutting device proposed in this utility model in its first state.

[0043] Figure 2 This is a schematic diagram of the overall structure of the CFG pile head cutting device proposed in this utility model in the second state.

[0044] Figure 3 This is a schematic diagram of the cooling component, limiting mechanism, and arc-shaped clamping component of a CFG pile head cutting device proposed in this utility model.

[0045] Figure 4 This utility model proposes a pile head cutting device for CFG piles. Figure 3 A schematic diagram of the structure of part B.

[0046] Figure 5 This is a schematic diagram of the third telescopic cylinder in a CFG pile head cutting device proposed in this utility model.

[0047] Figure 6 This utility model proposes a pile head cutting device for CFG piles. Figure 3 A schematic diagram of the structure of part A.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Mobile platform;

[0050] 2. Multi-axis displacement device; 201. First telescopic cylinder; 202. Lifting plate; 203. Second telescopic cylinder;

[0051] 3. Cutting machine;

[0052] 4. Fixing part; 401. Fixing rod; 402. First connecting rod;

[0053] 5. Moving part; 501. Rotating rod; 502. Second connecting rod;

[0054] 6. Limiting mechanism; 601. Limiting plate; 602. Limiting rod; 603. First limiting hole; 604. Second limiting hole;

[0055] 7. Arc-shaped clamping assembly; 701. Arc-shaped clamp; 702. Third telescopic cylinder; 703. Protrusion;

[0056] 8. Cooling components; 801. Water tank; 802. Water pump; 803. Spray head;

[0057] 9. Mounting plate. Detailed Implementation

[0058] To more clearly illustrate this disclosure, the following description, in conjunction with embodiments and accompanying drawings, provides further insight. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of this disclosure.

[0059] like Figure 1 , Figure 2 ,as well as Figure 3 As shown, one embodiment of this disclosure provides a pile head cutting device for CFG piles, including a mobile platform 1, and further comprising:

[0060] Mounting plate 9 and cutting assembly are fixedly installed on the mobile platform 1;

[0061] A clamping mechanism is fixedly installed on the mounting plate 9;

[0062] The clamping mechanism includes a fixed part 4 and a movable part 5;

[0063] The fixed part 4 is fixedly connected to the mounting plate 9, and the movable part 5 is rotatably connected to the fixed part 4;

[0064] The fixed part 4 and the movable part 5 are respectively provided with arc-shaped clamping components 7; the arc-shaped clamping components 7 include arc-shaped clamps 701 and a plurality of third telescopic cylinders 702 distributed circumferentially along the arc-shaped clamps 701;

[0065] The arc-shaped openings of the two arc-shaped clamps 701 are arranged opposite to each other. The mounting plate 9 is also provided with a limiting mechanism 6. The movable part 5 is locked to the relative position with the fixed part 4 by the limiting mechanism 6 so as to achieve the clamping and closing of the arc-shaped clamps 701 on the pile head.

[0066] The telescopic end of the third telescopic cylinder 702 faces the clamping center to clamp the pile head;

[0067] The cutting assembly is positioned between the clamping mechanism and the moving platform 1 to cut the clamped pile head.

[0068] It should be noted that in this embodiment, the mobile platform 1 can be a handcart or other movable carrier device, as long as it can realize the flexible movement and positioning of the cutting device. The specific form is not limited here.

[0069] Specifically, in this embodiment, each of the third telescopic cylinders 702 is configured to be evenly distributed along the circumference of the arc-shaped clamp 701 so that the pile head is subjected to uniform force when clamped.

[0070] In this disclosure, the clamping mechanism provides stable radial constraint and achieves 360° full-coverage clamping of the pile body through two sets of arc-shaped clamps 701. Multiple third telescopic cylinders 702 distributed circumferentially along the arc-shaped clamps 701 further uniformly apply clamping force. Compared to traditional line-contact clamps (which only generate localized line pressure), this invention significantly increases the contact area and effectively suppresses the formation of sawing vibration transmission paths. This embodiment effectively solves the problem of excessive cross-sectional ripples caused by cutting vibration, thereby improving the flatness and accuracy of the cut surface.

[0071] The hinged structure of the movable part 5 and the fixed part 4, combined with the guide rail walking system of the moving platform 1, greatly improves cutting efficiency. In particular, the clamping action of the third telescopic cylinder 702, compared with manual clamping, significantly improves the automation of the clamping operation, resulting in higher clamping efficiency and effectively improving construction efficiency.

[0072] The clamping mechanism and cutting components are fixedly installed on the mobile platform 1, which avoids the problem of cutting line deviation caused by uneven ground in traditional mobile trolley-type cutting equipment.

[0073] In a preferred embodiment, the radius of curvature of the arc-shaped clamp 701 matches the standard diameter of the CFG pile (Φ400-600mm). In addition, each arc-shaped clamp 701 is preferably equipped with no less than 6 sets of third telescopic cylinders 702 (single cylinder thrust ≥800N) to form a distributed hydraulic clamping force field.

[0074] In this embodiment, the cutting assembly adopts a sunken layout. First, the sunken layout brings the overall center of gravity of the cutting assembly closer to the moving platform 1, enhancing the stability of the equipment and reducing cutting deviations caused by equipment vibration or tilting during the cutting process. Second, the direct connection between the cutting assembly and the moving platform 1 can better absorb the vibrations generated during the cutting process, preventing vibrations from being transmitted to the clamping mechanism, thereby ensuring the stability of the pile head during the cutting process. Third, the sunken layout of the cutting assembly, bringing it closer to the moving platform 1, reduces cutting line deviations caused by equipment shaking or uneven ground during the cutting process, ensuring the straightness and accuracy of the cutting trajectory. Fourth, due to the improved stability of the cutting assembly, vibration and swaying during the cutting process are reduced, thereby effectively reducing the waviness of the cross-section and improving the flatness of the cut surface. Fifth, in uneven or narrow construction environments, the sunken layout makes the equipment easier to operate stably and has strong adaptability.

[0075] In one possible implementation, such as Figure 2 As shown, the fixing part 4 includes a fixing rod 401 fixed on the mounting plate 9 and a first connecting rod 402 with one end fixedly connected to the fixing rod 401;

[0076] The movable part 5 includes a rotating rod 501 rotatably connected to the fixed rod 401 and a second connecting rod 502 with one end fixedly connected to the rotating rod 501;

[0077] The other end of the second connecting rod 502 is fixedly connected to an arc-shaped clamp 701;

[0078] The other end of the first connecting rod 402 is fixedly connected to another arc-shaped clamp 701.

[0079] In one specific embodiment, the rotating rod 501 is hollow and coaxially sleeved on the fixed rod 401, allowing the rotating rod 501 to be rotatably connected to the fixed rod 401. The coaxial sleeve structure provides rigid support through the fixed rod 401, strictly limiting the rotation trajectory of the rotating rod 501 to the same axis, effectively reducing radial sway and preventing deviation (e.g., maintaining stability even when the rotating rod 501 is subjected to large torque in hoisting equipment). In a preferred embodiment, the hollow structure can serve as a lubrication channel or oil reservoir, reducing frictional losses in the rotating pair by injecting lubricating oil.

[0080] In one possible implementation, such as Figure 4 As shown, the limiting mechanism 6 includes a limiting disk 601 and at least one limiting rod 602 disposed on the mounting plate 9. The limiting disk 601 is coaxially disposed with the fixing rod 401 and the fixing rod 401 passes through the limiting disk 601 and is rotatably connected to the limiting disk 601.

[0081] The rotating rod 501 is fixedly connected to the limiting plate 601;

[0082] The limiting plate 601 is evenly provided with a plurality of first limiting holes 603 for cooperating with the limiting rod 602 in the circumferential direction; the mounting plate 9 is provided with a plurality of second limiting holes 604 for cooperating with the first limiting holes 603 and the limiting rod 602.

[0083] The limiting rod 602 is configured to pass through the first limiting hole 603 and the corresponding second limiting hole 604 respectively to restrict the rotation of the limiting plate 601, thereby locking the relative position of the movable part 5 and the fixed part 4.

[0084] In this embodiment, the limiting plate 601 is uniformly provided with a plurality of first limiting holes 603 in the circumference. By the cooperation of the limiting rod 602 with different holes, multi-angle precise locking can be achieved to meet the needs of different cutting angles or clamping postures.

[0085] The limiting rod 602 passes directly through the mounting plate 9 (second limiting hole 604) and the limiting plate 601 (first limiting hole 603), forming a rigid mechanical lock that can withstand radial forces or vibrations generated during cutting and prevent the clamping mechanism from rotating unexpectedly. The purely mechanical locking does not rely on hydraulic or electrical components, and has higher reliability under heavy load or impact conditions.

[0086] Locking / unlocking can be completed simply by inserting and removing the limit rod 602, without the need for complex adjustments or tools, significantly reducing operation time. The locking angle range or accuracy can be expanded by increasing or decreasing the number of limit holes or adjusting the hole distribution. This structure is simple, without complex transmission or power components, and consists only of the limit plate 601, the limit rod 602, and the mounting plate 9, resulting in a low failure rate and low maintenance costs.

[0087] In a preferred embodiment, multiple limiting rods 602 are provided. Compared to a single limiting rod 602 structure, applying multi-point rigid constraints to the limiting plate 601 through multiple limiting rods 602 can form a distributed load transfer path, making the circumferential force on the limiting plate 601 more uniform. This design can significantly improve locking stability and anti-displacement capability, especially when subjected to asymmetric loads or high-frequency vibrations, it can effectively suppress the slight rotation tendency of the limiting plate 601, thereby reducing the risk of positioning failure caused by vibration or external impact during construction.

[0088] In one possible implementation, such as Figure 5 As shown, the telescopic end of the third telescopic cylinder 702 is fixed with a spherical elastic contact head; the surface of the spherical elastic contact head is provided with anti-slip texture.

[0089] In this embodiment, elastic deformation adaptively conforms to the curved surface of the pile body, increasing the contact area and dispersing clamping stress to prevent pile head damage. The anti-slip texture significantly improves the friction coefficient, suppressing pile slippage caused by cutting vibration, while also compensating for pile diameter errors and surface unevenness, ensuring clamping stability. This embodiment combines the advantages of protecting the integrity of the pile head, reducing cross-sectional waviness, and adapting to harsh working conditions (such as humid or muddy environments).

[0090] In a preferred embodiment, the resilient contact head is a replaceable component, which is sleeved on the telescopic end. This embodiment is easy to maintain and has low cost.

[0091] In a preferred embodiment, the elastic material of the spherical elastic contact head can be selected from rubber (high elasticity, anti-slip and wear-resistant), silicone (high temperature resistance, anti-aging), polyurethane (high wear resistance, impact resistance), nylon (fatigue resistance, creep resistance), or polytetrafluoroethylene (PTFE) (self-lubricating and corrosion-resistant). In this embodiment, polyurethane has the best overall performance, balancing elastic deformation capability and wear resistance, making it suitable for high-frequency clamping scenarios; silicone has excellent temperature resistance (-50℃~250℃), suitable for harsh working conditions; rubber is low-cost and easy to replace, adaptable to conventional construction needs. Material selection needs to balance elasticity, durability, and environmental adaptability based on actual working conditions.

[0092] In one possible implementation, the cutting device further includes a cooling assembly 8, which includes a water tank 801, a water pump 802, and a spray assembly connected in sequence.

[0093] The spray assembly includes a plurality of spray heads 803 arranged circumferentially along the inner arcuate surface of the arcuate clamp 701;

[0094] The water tank 801 is fixedly installed on the mobile platform 1;

[0095] The water pump 802 is used to draw water from the water tank 801 and spray it out through multiple spray heads 803.

[0096] The cooling component 8 draws cooling water from the water tank 801 via a water pump 802, and sprays the water onto the pile head through circumferentially distributed spray nozzles 803. Gravity causes the water to seep down the pile body to the cutting blade area, forming a circulating cooling water loop. This achieves both real-time blade cooling and debris flushing. This design effectively avoids problems such as material softening and reduced cutting accuracy caused by high temperatures, while also suppressing cutting dust, extending blade life, and allowing the cooling water to return to the water tank 801 for reuse, thus offering water-saving and environmentally friendly advantages.

[0097] In one possible implementation, the inner surface of the arc-shaped clamp 701 protrudes inward along the arc-shaped edges on both sides of the arc-shaped clamp 701 to form a protrusion 703.

[0098] In one specific implementation, such as Figure 6 As shown, the spray head 803 is located between the third telescopic cylinder 702 and the protrusion 703 near the cutting assembly, and the spray head 803 is disposed close to the protrusion 703.

[0099] The spray head 803 is positioned between the third telescopic cylinder 702 and the protrusion 703 near the cutting assembly, with the spray head 803 located adjacent to the protrusion 703. In addition to serving as a structural reinforcing rib for the arc-shaped clamp 701, the inwardly protruding contour of the protrusion 703 forms a physical barrier, isolating the splash path and impact force of cutting debris, preventing high-temperature debris from directly impacting the spray head 803 and its connecting pipes (such as nylon hoses or metal rigid pipes), thereby reducing the risk of pipe wear and deformation and extending the service life of the spray assembly.

[0100] In one possible implementation, the cutting assembly includes a cutting machine 3 and a multi-axis displacement device 2;

[0101] The fixed side of the multi-axis displacement device 2 is fixed on the moving platform 1;

[0102] The cutting machine 3 is mounted on the movable side of the multi-axis displacement device 2, so that the multi-axis displacement device 2 drives the cutting machine 3 to perform multi-axis displacement.

[0103] In one specific embodiment, the multi-axis displacement device 2 includes a lifting plate 202 and a plurality of first telescopic cylinders 201;

[0104] The fixed end of the first telescopic cylinder 201 is fixedly connected to the mobile platform 1, and the telescopic end of the first telescopic cylinder 201 is fixedly connected to the lifting plate 202. A plurality of second telescopic cylinders 203 are fixedly mounted in parallel on the lifting plate 202, and the cutting machine 3 is fixedly connected to the telescopic end of the second telescopic cylinder 203.

[0105] In a preferred embodiment, the first telescopic cylinder 201 is vertical and the second telescopic cylinder 203 is horizontal. The two cylinders are driven independently, enabling precise positioning of the cutting machine 3 in three-dimensional space. This allows for dynamic adjustment to accommodate different pile head heights, diameters, and cutting depths. Furthermore, multi-axis linkage allows for real-time adjustment of the cutting machine 3's posture, compensating for cutting surface deviations caused by pile head tilt or uneven ground. The linear advancement of the horizontal second telescopic cylinder 203, combined with vertical height adjustment, supports continuous cutting, avoiding the frequent start-stop cycles of traditional single-axis cutting and improving the flatness of the cut surface.

[0106] Multiple first telescopic cylinders 201 are evenly distributed on both sides of the lifting plate 202 to form a symmetrical force-bearing structure, which can bear the working load of the heavy cutting machine 3 and avoid the deformation of the mechanism caused by single-point drive.

[0107] The working principle of this disclosure is as follows, see below. Figure 2 :

[0108] Mobile Platform 1: Serving as the equipment base, it is equipped with a roller or track system to support the flexible movement of the equipment on the construction site and to position it at the pile head to be cut.

[0109] Two sets of arc-shaped clamps 701 are closed by a hinged structure connecting the fixed part 4 and the movable part 5, enveloping the pile body. The limiting plate 601 is coaxially arranged with the fixed rod 401, and the position of the movable part 5 is locked by inserting the limiting rod 602 to prevent the clamping from loosening. The third telescopic cylinder 702 is distributed circumferentially along the arc-shaped clamps 701, and the telescopic end is provided with a spherical elastic contact head. By applying pressure evenly, it clamps the pile head to form a 360° full-coverage clamping, suppressing cutting vibration.

[0110] Multi-axis displacement device 2: It consists of a first telescopic cylinder 201 in the vertical direction and a second telescopic cylinder 203 in the horizontal direction, which drives the cutting machine 3 to precisely adjust its position in three-dimensional space.

[0111] Vertical adjustment: The first telescopic cylinder 201 drives the lifting plate 202 to rise and fall, adapting to the height of the pile head;

[0112] Horizontal propulsion: The second telescopic cylinder 203 linearly propels the cutting machine 3, enabling continuous cutting.

[0113] Cutting machine 3: Uses a high-power saw blade to cut the pile head along a preset trajectory under multi-axis control.

[0114] Cooling component 8:

[0115] Cooling water is delivered to the circumferentially distributed spray heads 803, and the sprayed water flows along the pile body to the cutting blade, forming a circulating cooling circuit to prevent the blade from overheating and softening.

[0116] Reference Figure 6 The protrusion 703 on the inner wall of the arc-shaped clamp 701 blocks splashing debris and protects the spray head 803 and pipeline from impact damage.

[0117] After the clamping mechanism locks the pile head, the multi-axis displacement device 2 automatically adjusts the cutting path according to the preset parameters, and combined with the real-time cooling of the cooling component 8, the cutting operation is completed.

[0118] The mobile platform 1 is rigidly connected to the clamping mechanism to prevent uneven ground from causing the cutting line to deviate; the elastic contact head adapts to the pile diameter error to ensure stable clamping.

[0119] In the description of this disclosure, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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 disclosure. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. For those skilled in the art, the specific meaning of the above terms in this disclosure can be understood according to the specific circumstances.

[0120] It should also be noted that, in the description of this disclosure, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0121] Obviously, the above embodiments of this disclosure are merely examples for clearly illustrating this disclosure, and are not intended to limit the implementation of this disclosure. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all implementation methods here. Any obvious variations or modifications derived from the technical solutions of this disclosure are still within the protection scope of this disclosure.

Claims

1. A pile head cutting apparatus for CFG piles, comprising a mobile platform (1), characterized in that, Also includes: Mounting plate (9) and cutting assembly fixedly installed on the mobile platform (1); A clamping mechanism is fixedly installed on the mounting plate (9); The clamping mechanism includes a fixed part (4) and a movable part (5); The fixed part (4) is fixedly connected to the mounting plate (9), and the movable part (5) is rotatably connected to the fixed part (4); The fixed part (4) and the movable part (5) are respectively provided with arc-shaped clamping components (7); the arc-shaped clamping components (7) include arc-shaped clamps (701) and a plurality of third telescopic cylinders (702) distributed circumferentially along the arc-shaped clamps (701); The arc-shaped openings of the two arc-shaped clamps (701) are arranged opposite to each other. The mounting plate (9) is also provided with a limiting mechanism (6). The movable part (5) is locked to the relative position with the fixed part (4) by the limiting mechanism (6) so as to achieve the clamping and closing of the arc-shaped clamps (701) on the pile head. The telescopic end of the third telescopic cylinder (702) is oriented toward the clamping center to clamp the pile head; The cutting assembly is positioned between the clamping mechanism and the moving platform (1) to cut the clamped pile head.

2. The pile head cutting device for CFG piles according to claim 1, characterized in that, The fixing part (4) includes a fixing rod (401) fixed on the mounting plate (9) and a first connecting rod (402) with one end fixedly connected to the fixing rod (401); The movable part (5) includes a rotating rod (501) rotatably connected to the fixed rod (401) and a second connecting rod (502) with one end fixedly connected to the rotating rod (501); The other end of the second connecting rod (502) is fixedly connected to an arc-shaped clamp (701); The other end of the first connecting rod (402) is fixedly connected to another arc-shaped clamp (701).

3. The pile head cutting device for CFG piles according to claim 2, characterized in that, The limiting mechanism (6) includes a limiting plate (601) and at least one limiting rod (602) disposed on the mounting plate (9). The limiting plate (601) is coaxially disposed with the fixing rod (401) and the fixing rod (401) passes through the limiting plate (601) and is rotatably connected to the limiting plate (601). The rotating rod (501) is fixedly connected to the limiting plate (601); The limiting plate (601) is uniformly provided with a plurality of first limiting holes (603) for cooperating with the limiting rod (602) in the circumferential direction; the mounting plate (9) is provided with a plurality of second limiting holes (604) for cooperating with the first limiting holes (603) and the limiting rod (602); The limiting rod (602) is configured to pass through the first limiting hole (603) and the corresponding second limiting hole (604) respectively to restrict the rotation of the limiting plate (601), thereby locking the relative position of the movable part (5) and the fixed part (4).

4. The pile head cutting device for CFG piles according to claim 3, characterized in that, There are multiple limiting rods (602).

5. The pile head cutting device for CFG piles according to claim 1, characterized in that, The telescopic end of the third telescopic cylinder (702) is fixed with a spherical elastic contact head; the surface of the spherical elastic contact head is provided with anti-slip texture.

6. The pile head cutting device for CFG piles according to claim 1, characterized in that, The cutting equipment also includes a cooling component (8), which includes a water tank (801), a water pump (802), and a spraying component connected in sequence. The spray assembly includes a plurality of spray heads (803) arranged circumferentially along the inner arcuate surface of the arcuate clamp (701); The water tank (801) is fixedly installed on the mobile platform (1); The water pump (802) is used to draw water from the water tank (801) and spray it out through a plurality of spray heads (803).

7. The pile head cutting device for CFG piles according to claim 6, characterized in that, The inner surface of the arc-shaped clamp (701) protrudes inward along the arc-shaped edges on both sides of the arc-shaped clamp (701) to form a protrusion (703).

8. The pile head cutting device for CFG piles according to claim 7, characterized in that, The spray head (803) is located between the third telescopic cylinder (702) and the protrusion (703) near the cutting assembly, and the spray head (803) is disposed near the protrusion (703).

9. The pile head cutting device for CFG piles according to claim 1, characterized in that, The cutting assembly includes a cutting machine (3) and a multi-axis displacement device (2); The fixed side of the multi-axis displacement device (2) is fixed on the moving platform (1); The cutting machine (3) is installed on the movable side of the multi-axis displacement device (2) so that the multi-axis displacement device (2) drives the cutting machine (3) to perform multi-axis displacement.

10. The pile head cutting device for CFG piles according to claim 9, characterized in that, The multi-axis displacement device (2) includes a lifting plate (202) and a plurality of first telescopic cylinders (201); The fixed end of the first telescopic cylinder (201) is fixedly connected to the mobile platform (1), the telescopic end of the first telescopic cylinder (201) is fixedly connected to the lifting plate (202), and a plurality of second telescopic cylinders (203) are fixedly fixed in parallel on the lifting plate (202). The cutting machine (3) is fixedly connected to the telescopic end of the second telescopic cylinder (203).

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