Pipe pile sawing device

Abstract

The utility model provides a tubular pile sawing device which comprises a supporting plate, an annular fixing hoop for fixing the supporting plate on the outer wall of a tubular pile, a cutter assembly, an ultrasonic detection unit and a control terminal, and the control terminal is in signal connection with driving modules in the cutter assembly and the ultrasonic detection unit. The supporting plate comprises a vertical supporting plate and a transverse supporting plate perpendicular to the vertical supporting plate. The cutter assembly comprises a cutter disc, a cutter drive, a connecting block, a first air cylinder and a lead screw motor, the first air cylinder and the lead screw motor act independently, the cutter disc is connected with the connecting block, a piston of the first air cylinder is connected with the connecting block, and a lead screw of the lead screw motor is connected with the connecting block. The ultrasonic detection unit is arranged on the transverse supporting plate. According to the pile sawing device, the service life of the cutter in the pile sawing device is prolonged, and meanwhile the practicability of the pile sawing device is improved.

Description

Technical Field

[0001] This application relates to the field of pipe pile processing technology, specifically to a pipe pile sawing device. Background Technology

[0002] Pipe piles are a commonly used material for stabilizing foundations in existing construction projects. When inserted into the foundation, they can improve the bearing capacity of the foundation soil. Pipe piles are manufactured as a single piece, with lengths exceeding ten meters. After manufacturing, the quality of the pipe pile needs to be monitored. If the end section fails to meet quality standards, the entire pile must be scrapped, resulting in material waste. Therefore, defective sections can be cut off, retaining only the acceptable parts; alternatively, after installation, excess length needs to be removed to avoid affecting the production of other structures.

[0003] Currently, electric saws are used to gradually cut pipe piles. For example, Chinese patent CN213296350U discloses a precast pile saw with a fixed axis rotation, which includes a fixing hoop fitted on the wall of the precast pile pipe. The saw is mounted on the fixing hoop and includes a motor and a cutting disc. A rotating mechanism is connected between the saw and the fixing hoop, which allows the saw to rotate 360° along the wall of the precast pile pipe on the fixing hoop. The rotating mechanism includes a first rotating plate and a second rotating plate, and a rotating seat is connected between the first rotating plate and the second rotating plate. The motor and the cutting disc are both mounted on the rotating seat through supports.

[0004] In the aforementioned prior art, the feed rate of the blade gradually increases, making the cross-sectional area between the blade and the pipe pile cutting section larger and larger. On the one hand, this is not conducive to heat dissipation of the blade, and on the other hand, it may cause the blade to get stuck with cutting debris, which is not conducive to the protection of the blade, making the practicality of the pile saw insufficient. Utility Model Content

[0005] This utility model provides a pipe pile sawing device to solve the corresponding problems in the background art.

[0006] This utility model provides a pipe pile sawing device.

[0007] A pipe pile sawing device includes a support plate, an annular fixing hoop for fixing the support plate to the outer wall of the pipe pile, a cutting blade assembly, an ultrasonic detection unit, and a control terminal. The control terminal is signal-connected to the drive module in the cutting blade assembly and the ultrasonic detection unit. The support plate includes a vertical support plate and a horizontal support plate perpendicular to the vertical support plate. The cutting blade assembly includes a cutting disc, a cutting blade drive, a connecting block, a first cylinder that acts independently, and a lead screw motor. The cutting disc is connected to the connecting block, and the piston of the first cylinder is connected to the connecting block to push the cutting disc to move along the tangent direction of the pipe pile. The lead screw of the lead screw motor is connected to the connecting block to drive the cutting disc to move along a direction perpendicular to the tangent direction of the pipe pile. The cutting blade drive is connected to the center of the circular cutting blade in the cutting disc. The ultrasonic detection unit is disposed on the horizontal support plate and includes a base and a probe, the probe being rotatably connected relative to the base.

[0008] Optionally, the fixing hoop includes two semi-circular fixing plates, and a support column is provided on the side of the fixing plate near the outer wall of the pipe pile. The support column is used to abut against the vertical support plate of the support plate.

[0009] Optionally, the processing module of the control terminal is signal-connected to the output module. The processing module calculates the feed amount and number of cuts of the cutting disc based on the detection information of the ultrasonic detection unit. The output module is connected to the first cylinder and the lead screw motor respectively.

[0010] Optionally, a Hall sensor is provided on the surface of the circular cutter. The Hall sensor is connected to the control terminal signal to obtain the torque T of the circular cutter. When T is greater than a preset parameter, the cutter drive, the first cylinder, and the lead screw motor are simultaneously de-energized.

[0011] Optionally, the surface of the circular cutter includes a tungsten carbide coating or a cladding layer, wherein the cladding layer contains wear-resistant particles.

[0012] Optionally, it also includes a cooling mechanism, including a cooling tank, a cooling pipe and a spray pipe. One end of the spray pipe has an arc-shaped spray nozzle, and the other end is connected to the cooling pipe. The cooling pipe is connected to the cooling tank. A pump is installed inside the cooling tank, and the control terminal signal is connected to the pump.

[0013] The principle and beneficial effects of this utility model are as follows:

[0014] In the pipe pile sawing device provided by this utility model, a vertical support plate is fixed to the outer wall of the pipe pile using a fixing hoop, and a cutting blade assembly for cutting the pipe pile is set on a horizontal support plate. The cutting blade disc in the cutting blade assembly is controlled not only by the cutting blade drive but also by a first cylinder, which allows the cutting blade disc to move along the tangent of the pipe pile. It is also controlled by a lead screw motor, which allows the cutting blade disc to move along a direction perpendicular to the tangent of the pipe pile. This allows the cutting blade disc to cut the pipe pile in multiple cuts. That is, after cutting once along the tangent direction of the outer wall of the pipe pile according to the preset cutting amount, the cutting blade disc moves a certain distance towards the central axis of the pipe pile and then cuts again along a direction parallel to the previous cut. This process is repeated until the pipe pile is completely cut off.

[0015] The pipe pile sawing device provided by this utility model cuts the pipe pile in stages, with a small feed amount per cut. This not only reduces the power output of the cutter drive and facilitates the partial delivery of cut debris, but also reduces the heat generated by the cutter due to work and friction, thus protecting the blade and extending its service life. Furthermore, the ultrasonic detection unit can acquire information about the internal main reinforcement structure of the pipe pile (referring to the main frame of the pipe pile's reinforcing cage, which has a relatively large diameter), facilitating the determination of the optimal sawing position. Moreover, it achieves detection before cutting, effectively improving the practicality of the sawing device. Attached Figure Description

[0016] Figure 1 A top view schematic diagram of the pipe pile sawing device provided by the utility model;

[0017] Figure 2 This is a lateral view of the support plate installation in an embodiment of this application;

[0018] Figure 3 This is a top view of the fixing hoop in an embodiment of this application;

[0019] Figure 4 This is a three-dimensional structural diagram of the spray pipe in an embodiment of this application.

[0020] Figure label:

[0021] 11. Vertical support plate; 12. Horizontal support plate; 2. Fixing hoop; 21. Fixing plate; 22. Support column; 31. Cutter disc; 32. Cutter drive; 33. Connecting block; 34. First cylinder; 35. Screw motor; 4. Ultrasonic detection unit; 5. Control terminal; 6. Spray pipe. Detailed Implementation

[0022] The technical solutions in the embodiments of the application will now be clearly and completely described with reference to the accompanying drawings. Furthermore, the phrases "in one embodiment" or "in one embodiment" appearing throughout this specification do not necessarily refer to the same embodiment. Moreover, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0023] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or terminal device that includes that element.

[0024] Existing methods use electric saws to gradually cut pipe piles. For example, Chinese patent CN213296350U discloses a fixed-axis rotating precast pile saw, which includes a fixing hoop fitted onto the wall of the precast pile pipe. The saw is mounted on the fixing hoop and includes a motor and a cutting disc. A rotating mechanism connects the saw and the fixing hoop, allowing the saw to rotate 360° along the wall of the precast pile pipe on the fixing hoop. The rotating mechanism includes a first rotating plate and a second rotating plate, with a rotating seat connecting the first and second rotating plates. The motor and the cutting disc are both mounted on the rotating seat via supports. In this prior art, the feed rate of the saw gradually increases during pile sawing, resulting in a larger cross-sectional area between the saw and the pipe pile. This is detrimental to heat dissipation of the blade and may cause cutting debris to jam the blade, hindering blade protection and making the saw impractical. Therefore, this utility model provides a pipe pile sawing device, which will be described in detail below with reference to the accompanying drawings.

[0025] This utility model provides a pipe pile sawing device, including a support plate, an annular fixing hoop for fixing the support plate to the outer wall of the pipe pile, a cutting blade assembly, an ultrasonic detection unit, and a control terminal. The control terminal is signal-connected to the drive module in the cutting blade assembly and the ultrasonic detection unit. The support plate includes a vertical support plate and a horizontal support plate perpendicular to the vertical support plate. The cutting blade assembly includes a cutting blade disc, a cutting blade drive, a connecting block, a first cylinder that acts independently, and a lead screw motor. The cutting blade disc is connected to the connecting block, and the piston of the first cylinder is connected to the connecting block to push the cutting blade disc to move along the tangent direction of the pipe pile. The lead screw of the lead screw motor is connected to the connecting block to drive the cutting blade disc to move along the tangent direction perpendicular to the pipe pile. The cutting blade drive is connected to the center of the circular cutting blade inside the cutting blade disc. The ultrasonic detection unit is disposed on the horizontal support plate and includes a base and a probe, with the probe rotatably connected to the base.

[0026] like Figure 1 and Figure 2 As shown, in the pipe pile sawing device provided by this utility model, a vertical support plate is fixed to the outer wall of the pipe pile using a fixing hoop, and a cutting blade assembly for cutting the pipe pile is set on the horizontal support plate. The cutting blade disc in the cutting blade assembly is controlled not only by the cutting blade drive but also by a first cylinder, allowing the cutting blade disc to move along the tangent of the pipe pile. It is also controlled by a lead screw motor, allowing the cutting blade disc to move along a direction perpendicular to the tangent of the pipe pile. This allows the cutting blade disc to cut the pipe pile in multiple stages. Specifically, after cutting once along the tangential direction of the outer wall of the pipe pile according to a preset cutting amount, the cutting blade disc moves a certain distance towards the central axis of the pipe pile and then cuts again along a direction parallel to the previous cut. This process is repeated multiple times until the pipe pile is completely cut.

[0027] The pipe pile sawing device provided by this utility model cuts the pipe pile in stages, with a small feed amount per cut. This not only reduces the power output of the cutter drive and facilitates the partial delivery of cut debris, but also reduces the heat generated by the cutter due to work and friction, thus protecting the blade and extending its service life. Furthermore, this utility model employs a probe-before-cut approach, which facilitates avoiding the main reinforcement of the pipe pile and determining the optimal sawing position, effectively improving the practicality of the sawing device.

[0028] Reference Figure 3 As shown, the aforementioned fixing clamp includes two semi-circular fixing plates. A support column is provided on the side of the fixing plate near the outer wall of the pipe pile. The support column is used to abut against the vertical support plate of the fixing plate. The support column can abut against the limiting groove on the outer wall of the vertical support plate to fix the position of the support column and prevent the fixing column from slipping off relative to the outer wall of the vertical support plate. Alternatively, an anti-slip rubber sleeve can be fitted onto the support column.

[0029] Specifically, the aforementioned control terminal includes a display module, a processing module, a signal acquisition module, and an output module. The display module displays a schematic diagram of the pipe pile structure detected by the ultrasonic detection unit (this embodiment does not impose specific limitations on the detection equipment or method used in this schematic diagram). Existing relevant detection technologies can be used for this schematic diagram, and this embodiment will not elaborate further. The processing module is signal-connected to the output module. The processing module uses the detection information from the ultrasonic detection unit obtained by the signal acquisition module to calculate the feed rate and number of cuts of the cutting disc. The feed rate is the depth of a single cut by the cutting disc, i.e., the distance the aforementioned lead screw motor needs to push the cutting disc towards the pipe pile. The number of cuts is the number of cuts required to complete the detection of the pipe pile. After acquiring the feed rate and number of cuts, the output module sends this information to the first cylinder and the lead screw motor connection respectively to achieve automatic feeding and automatic cutting. After cutting is completed, the cutting disc drive is controlled to cut off the power.

[0030] Furthermore, the aforementioned ultrasonic detection unit acquires the internal main reinforcement structure of the pipe pile (referring to the main frame of the pipe pile's steel cage, which has a relatively large diameter), thereby avoiding the main reinforcement structure within the pipe pile and determining the optimal sawing position. Moreover, it achieves detection before cutting, effectively improving the practicality of the sawing device. In other words, this invention can automatically perform ultrasonic flaw detection to determine a specific sawing trajectory, automatically detect the optimal cutting position, and automatically determine the depth and number of sawing operations per measurement, effectively improving the practicality of the sawing device.

[0031] It should be noted that the sawing device provided by this utility model also includes a cooling mechanism, which includes a cooling box, a cooling pipe and a spray pipe. The spray pipe is connected to the cooling pipe, and the cooling pipe is connected to the cooling box. A pump is installed in the cooling box, and the pump is connected to the control terminal signal. That is, the control terminal controls the pump to automatically supply coolant, so that the spray pipe sprays coolant onto the cutter, cools the cutter, and improves the service life of the cutter.

[0032] Among them, such as Figure 4 As shown, the spray nozzle at one end of the spray pipe is arc-shaped, and the coolant sprayed from the arc-shaped nozzle is in a fan shape, which can increase the coverage area of ​​the coolant on the cutter.

[0033] In this embodiment, the ultrasonic detection unit is mounted on a horizontal support plate and includes a base and a probe, with the probe rotatably connected to the base. The probe, or ultrasonic detection assembly, utilizes the principle of ultrasonic flaw detection to inspect the internal structure of the pipe pile. This ultrasonic detection assembly is based on existing technology and will not be described in detail here. Additionally, the base on which the probe is mounted is configured to control the probe's rotation in the horizontal plane, thereby increasing the probe's detection range. Specifically, a miniature motor is installed inside the base housing to control the probe's rotation at a certain angle. This embodiment does not impose specific limitations on the specific structure of the motor and the base housing.

[0034] In some embodiments, a Hall sensor is provided on the surface of the circular cutter. The Hall sensor is connected to the control terminal to obtain the torque T of the circular cutter. The magnitude of this torque affects whether the cutter may be damaged. When the torque T exceeds a preset parameter, the cutter may be damaged. If the damaged cutter blade is not stopped from outputting power, the fragments of the cutter will fly out, seriously affecting the safety of the operator and threatening the operator's health and rights. At the same time, the first cylinder and the lead screw motor are de-energized to prevent the cutter disc from directly impacting the pipe pile and damaging the entire cutter power system or the cutter disc. In this embodiment, there are no specific restrictions on the installation position or model of the Hall element. In addition, the preset parameter of the torque T is related to the actual specifications of the cutter, and this embodiment does not impose specific restrictions on it either.

[0035] In some embodiments, the surface of the circular cutter includes a tungsten carbide coating or a cladding layer, the cladding layer containing wear-resistant particles. The tungsten carbide coating has high density, strong wear resistance, and corrosion resistance, effectively extending the service life of the cutter. Alternatively, a cladding layer can be applied to the surface of the cutter, incorporating wear-resistant particles. These wear-resistant particles can be diamond or other rigid materials with wear-resistant and durable properties, reducing the frequency of cutter replacement due to damage.

[0036] Finally, this utility model provides a pipe pile sawing device, including a support plate, an annular fixing hoop for fixing the support plate to the outer wall of the pipe pile, a cutting blade assembly, an ultrasonic detection unit, and a control terminal. The control terminal is signal-connected to the drive modules in the cutting blade assembly and the ultrasonic detection unit. The support plate includes a vertical support plate and a horizontal support plate perpendicular to the vertical support plate. The cutting blade assembly includes a cutting blade disc, a cutting blade drive, a connecting block, a first cylinder that acts independently, and a lead screw motor. The cutting blade disc is connected to the connecting block, the piston of the first cylinder is connected to the connecting block, and the lead screw of the lead screw motor is connected to the connecting block. The ultrasonic detection unit is disposed on the horizontal support plate. This utility model improves the service life of the cutting blade in the sawing device and enhances the practicality of the sawing device.

[0037] It should be noted that all the above embodiments belong to the same inventive concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not exhaustive, please refer to the description in other embodiments. The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to mutually.

[0038] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pipe pile sawing device, characterized in that, The system includes a support plate, a fixing hoop (2) for fixing the support plate to the outer wall of the pipe pile, a cutting blade assembly, an ultrasonic detection unit (4), and a control terminal (5). The control terminal (5) is connected to the drive module in the cutting blade assembly and the ultrasonic detection unit (4). The support plate includes a vertical support plate (11) and a horizontal support plate (12) perpendicular to the vertical support plate (11). The cutting blade assembly is mounted on the horizontal support plate (12). The cutting blade assembly includes a cutting blade disc (31), a cutting blade drive (32), a connecting block (33), a first cylinder (34) that acts independently, and a lead screw motor (35). The cutting disc (31) is connected to the connecting block (33), the piston of the first cylinder (34) is connected to the connecting block (33) to push the cutting disc (31) to move along the tangent direction of the pipe pile, the lead screw of the lead screw motor (35) is connected to the connecting block (33) to drive the cutting disc (31) to move along the tangent direction perpendicular to the pipe pile, and the cutting drive (32) is connected to the center of the circular cutting blade in the cutting disc (31); the ultrasonic detection unit (4) is disposed on the transverse support plate (12) and includes a base and a probe, the probe being rotatably connected relative to the base.

2. The pipe pile sawing device according to claim 1, characterized in that, The fixing hoop (2) includes two semi-circular fixing plates (21). The fixing plate (21) has a support column (22) on the side near the outer wall of the pipe pile. The support column (22) is used to abut against the vertical support plate (11) of the support plate.

3. The pipe pile sawing device according to claim 2, characterized in that, The processing module of the control terminal (5) is connected to the output module. The processing module calculates the feed amount and number of cuts of the cutting disc (31). The output module is connected to the first cylinder (34) and the lead screw motor (35) respectively.

4. The pipe pile sawing device according to claim 3, characterized in that, The circular cutter surface is equipped with a Hall sensor, which is signal-connected to the control terminal (5) to obtain the torque T of the circular cutter. When T is greater than a preset parameter, the cutter drive (32), the first cylinder (34), and the lead screw motor (35) are simultaneously de-energized.

5. The pipe pile sawing device according to claim 1, characterized in that, The surface of the circular cutter includes a tungsten carbide coating or a cladding layer, and the cladding layer contains wear-resistant particles.

6. The pipe pile sawing device according to claim 1, characterized in that, It also includes a cooling mechanism, including a cooling box, a cooling pipe and a spray pipe (6). The spray nozzle at one end of the spray pipe (6) is arc-shaped, and the other end is connected to the cooling pipe. The cooling pipe is connected to the cooling box. A pump is provided in the cooling box. The control terminal (5) is connected to the pump signal.

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