Photovoltaic pile synchronous spinning control system

Abstract

The utility model relates to a kind of photovoltaic pile synchronous spin-in control system, belong to concrete prestressed pile technical field, including pile machine and rotary power head, the mast is equipped on the mechanical arm of pile machine, guide rail is opened on the mast along length direction, rotary power head one end is slidably installed on guide rail, first sensor for monitoring the rotating speed of photovoltaic pile is equipped on rotary power head, second sensor for monitoring the sinking speed of photovoltaic pile is equipped on the mast or rotary power head, power assembly for driving rotary power head to move up and down is equipped on the pile machine;It further includes PLC controller, the first sensor, second sensor are electrically connected with PLC controller. With dynamic adjustment rotary power head down speed and the rotation of rotary power head, ensure that photovoltaic pile always with constant, meet its design pitch speed spin into stratum, realized the effect of high-precision, self-adapting intelligent control to photovoltaic pile spin-in process.

Description

Technical Field

[0001] This utility model relates to the field of prestressed concrete pile technology, specifically to a synchronous rotary advance control system for photovoltaic piles. Background Technology

[0002] During the construction of bridges, culverts, or high-rise buildings, pile driving may be required for the foundation. Currently, the main methods for driving photovoltaic (PV) piles into the soil include rotary driving, hammer penetration, static load driving, and vibratory penetration. In the rotary driving pile process, the power head applies torque to the PV pile, and the pile driver applies downward pressure to the PV pile. After being subjected to downward pressure and torque, the PV pile is driven into the soil. The PV pile is clamped and fixed by a hydraulic system on the power head, and the rotation of the hydraulic system drives the PV pile to rotate synchronously.

[0003] The pile's turning speed (i.e., the matching relationship between rotation speed and sinking speed) directly affects the quality and efficiency of pile formation. This is especially true for photovoltaic piles with different pitches or geological conditions, where the rotation torque and sinking speed need to be adjusted according to the actual situation. However, current systems lack real-time monitoring and feedback mechanisms, relying heavily on manual adjustments based on operator experience, making it difficult to guarantee the synchronization and stability of the turning process. Furthermore, different pile types have significantly different pitches, requiring different rotation-sinking speed ratios to achieve efficient turning. If the rotation and sinking actions are not coordinated, it may lead to pile jamming, deflection, or excessive friction, increasing the load on the hydraulic system and mechanical wear. It may also affect the pile's verticality and load-bearing capacity. Existing equipment cannot automatically adapt to different pile type parameters, resulting in low construction efficiency and even pile damage.

[0004] Therefore, there is an urgent need for a system that can monitor and coordinate the rotation speed and sinking speed of photovoltaic piles in real time to improve construction accuracy, adaptability and efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a synchronous rotary advance control system for photovoltaic piles, so as to solve the problem that the existing system cannot automatically adapt to different pile type parameters, resulting in low construction efficiency or even pile damage.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A photovoltaic pile synchronous rotary advance control system includes a pile driver and a rotary power head. The pile driver has a mast on its mechanical arm, and a guide rail is opened on the mast along its length. One end of the rotary power head is slidably mounted on the guide rail. The rotary power head is equipped with a first sensor for monitoring the rotational speed of the photovoltaic pile. The mast or the rotary power head is equipped with a second sensor for monitoring the sinking speed of the photovoltaic pile. The pile driver is equipped with a power component for driving the rotary power head to move up and down. It also includes a PLC controller, and both the first sensor and the second sensor are electrically connected to the PLC controller.

[0007] Furthermore, the rotating power head is a centrally located torsion power head.

[0008] Furthermore, the central clamping power head includes a power box, a rotary drive component is provided inside the power box, a first central through hole is provided on the power box, a mounting cylinder is provided at one end of the power box, the mounting cylinder is connected to the rotary drive component, a second central through hole is provided on the mounting cylinder, the second central through hole is aligned and communicates with the first central through hole, at least one hydraulic clamping mechanism is fixedly provided on the outer wall of the mounting cylinder along the circumference, an opening is provided on the outer wall of the mounting cylinder corresponding to each hydraulic clamping mechanism, the opening communicates with the inside of the mounting cylinder, and a rotary oil supply joint is provided between the hydraulic clamping mechanism and the mounting cylinder.

[0009] Furthermore, the pile driver is equipped with a third sensor for monitoring the torque of the rotating power head, and the third sensor is electrically connected to the PLC controller.

[0010] Furthermore, the power assembly includes a winch, a pulley block, and a wire rope. The pulley block includes several fixed pulleys installed at both ends of the mast. The wire rope is wound around the winch. One end of the wire rope passes over the fixed pulley at the top of the mast and is vertically downward and fixedly connected to the top of the rotating power head. The other end of the wire rope passes over the fixed pulley at the bottom of the mast and is vertically upward and fixedly connected to the bottom of the rotating power head.

[0011] Furthermore, a fourth sensor for monitoring the downward force of the wire rope is provided at the connection between the wire rope and the bottom of the rotating power head, and the fourth sensor is electrically connected to the PLC controller.

[0012] Furthermore, the winch is installed at the top or bottom of the mast on the side facing away from the power head.

[0013] Furthermore, there are four fixed pulleys, which are located at the four corners of the mast.

[0014] The beneficial effects of this utility model are: 1. The photovoltaic pile synchronous spiraling control system provided in this application involves a PLC controller that collects data values ​​from a first sensor and a second sensor. The PLC controller calculates the ratio between the two (i.e., the actual pitch) and compares it with a preset value. The system dynamically adjusts the downward speed of the rotating power head and the rotation of the rotating power head to ensure that the photovoltaic pile always spirals into the stratum at a constant speed that conforms to its design pitch, thus achieving high-precision, adaptive, and intelligent control of the photovoltaic pile spiraling process.

[0015] 2. This system eliminates the need for manual adjustments based on operator experience. For photovoltaic piles of different specifications and pitches, simply preset the target pitch ratio (i.e., target screw pitch) in the PLC, and the control system will automatically match the optimal combination of rotational torque and winch pulling force, achieving "one-click switching" and greatly expanding the application range of the piling machine. Furthermore, facing complex working conditions such as variations in soil hardness, the system can automatically fine-tune parameters through real-time feedback, maintaining smooth construction and demonstrating strong adaptability.

[0016] 3. All sensor data is collected and recorded by the PLC controller and can be uploaded to a host computer or cloud platform, enabling fully digital monitoring and traceability of the construction process. Operators can view the pitch curve of each pile in real time, and managers can analyze and optimize construction efficiency and quality based on data reports, providing data support for subsequent projects and driving continuous improvement of construction techniques.

[0017] 4. Automated control reduces the time required for manual intervention and frequent adjustments, shortening the construction cycle of a single pile. At the same time, the smooth rotary advance process reduces energy loss and reduces repeated construction caused by problems such as jamming and deflection, thereby saving time and fuel / electricity costs. High-quality pile formation also reduces the risk of later maintenance, resulting in high economic benefits. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the construction structure of the photovoltaic pile in this utility model; Figure 2 This is a block diagram showing the control connection of each sensor in this utility model; Figure 3 This is a schematic diagram of the structure of the torsion power head in the middle of the photovoltaic pile in this utility model; Figure 4 for Figure 3 A partial structural diagram; Figure 5 for Figure 4 A partial structural diagram; Figure 6 This is a partial perspective view of the torsion power head in the middle of the photovoltaic pile in this utility model.

[0019] The components include: 1. Rotary drive component; 2. Reduction transmission mechanism; 3. Power box; 4. Connecting frame; 5. Connecting ring; 6. Mounting cylinder; 7. Anti-rotation plate; 8. Connecting frame; 9. Mounting ring; 10. Base; 11. Hydraulic cylinder; 12. Pile clamp plate; 13. Oil delivery pipe; 14. First channel; 15. Annular groove; 16. Second channel; 17. Outer cylinder; 18. Inner cylinder; 19. Mast; 20. Pile driver; 21. Photovoltaic pile; 22. First central through hole; 23. Second central through hole; 24. Winch; 25. Wire rope; 27. Encoder; 28. Displacement sensor; 29. ​​Tension sensor; 30. Hydraulic pressure sensor; 31. Fixed pulley; 32. Control box; and 33. PLC touch screen. Detailed Implementation

[0020] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0022] This embodiment proposes a synchronous rotary advance control system for photovoltaic piles, such as... Figures 1 to 6 As shown, the device includes a pile driver 20 and a rotary power head. The mechanical arm of the pile driver 20 is equipped with a mast 19, and a guide rail is provided on the mast 19 along its length. One end of the rotary power head is slidably mounted on the guide rail. In this embodiment, two sliding seats are slidably mounted on the guide rail and installed at intervals. One end of the rotary power head is fixedly mounted on the two mounting seats by bolts, which provides stable support for the rotary power head and allows the rotary power head to slide smoothly on the mast 19. The structure of the guide rail and sliding seats has been fully disclosed in the prior art, and will not be described in detail again. The rotating power head is equipped with a first sensor for monitoring the rotational speed of the photovoltaic pile 21, and the mast 19 or the rotating power head is equipped with a second sensor for monitoring the sinking speed of the photovoltaic pile 21. In this embodiment, the first sensor is preferably an encoder 27, with the measuring wheel of the encoder 27 mounted against the outer side of the rotating body of the rotating power head. The second sensor is preferably a displacement sensor 28, which is mounted on the top of the upper sliding seat or on the inner wall of the mast 19. It is used to monitor the straight-line distance from the sliding seat to the inner wall of the mast 19, thereby calculating the downward displacement value of the power head. The sinking speed of the photovoltaic pile 21 can be calculated based on the time taken. The pile driver 20 is equipped with a power component for driving the rotating power head to move up and down. The synchronous rotation control system of the photovoltaic pile 21 also includes a PLC controller. The encoder 27 and the displacement sensor 28 are both electrically connected to the PLC controller. In this embodiment, the PLC controller includes a control box 32 and a PLC touch screen 33 for easy operation by the operator.

[0023] The rotating power head is a central clamping and torsion power head. In this embodiment, the central clamping and torsion power head is used to clamp the photovoltaic pile 21 and provide rotational driving force to the photovoltaic pile 21. On the one hand, by clamping the middle of the photovoltaic pile 21, the load can be distributed, making the pile body less prone to damage and cracking. Moreover, when the pile driver 20 clamps the middle of the photovoltaic pile 21 during construction, it is easier to ensure verticality. On the other hand, the central clamping and torsion power head fits better with the mast 19, making installation convenient and operation simple.

[0024] The central rotary drilling power head includes a power box 3, which contains a rotary drive component 1. The power box 3 has a first central through hole 22. In this embodiment, the structure of the power box 3 is similar to that of the rotary drilling power head in the prior art. The rotary drive component 1 is arranged at the upper part of the interior, and the reduction transmission mechanism 2 is arranged at the lower part of the interior. The rotary drive component 1 is a hydraulic motor, which can drive the reduction transmission mechanism 2 to rotate. The structure of the rotary drilling power head has been fully disclosed in the prior art, so it will not be described in detail here. A mounting cylinder 6 is fixedly provided at the bottom end of the reduction transmission mechanism 2. The mounting cylinder 6 is connected to the rotary drive component 1. In this embodiment, a connecting ring 5 is fixedly provided at the bottom end of the reduction transmission mechanism 2. An extension ring is integrally formed at the bottom of the connecting ring 5, which divides the connecting ring 5 into an outer ring and an inner ring. The outer ring is fixedly connected to the bottom end of the mounting box by bolts. The top end of the mounting cylinder 6 can be embedded in the inner ring, and the two are fixedly connected by bolts. The inner diameter of the inner ring is the same as the inner diameter of the mounting cylinder 6. With this structural design, the mounting cylinder 6 can be detachably and fixedly installed at the bottom of the reduction transmission mechanism 2. The rotary drill drive component can directly drive the connecting ring 5 and the mounting cylinder 6 to rotate synchronously through the reduction transmission mechanism 2. A second central through hole 23 is opened on the mounting cylinder 6. The second central through hole 23 is aligned and connected with the first central through hole 22. In this embodiment, the space of the first central through hole 22 and the second central through hole 23 is larger than the outer diameter of the photovoltaic pile 21, which facilitates the smooth passage of the photovoltaic pile 21. At least one hydraulic clamping mechanism is fixedly provided circumferentially at the bottom of the outer wall of the mounting cylinder 6. An opening is provided on the outer wall of the mounting cylinder 6 for each hydraulic clamping mechanism, and the opening communicates with the interior of the mounting cylinder 6. A rotary oil supply joint is provided between the hydraulic clamping mechanism and the mounting cylinder 6. In this embodiment, when there is one hydraulic clamping mechanism, it abuts against one side of the pile body, and the other side of the pile body abuts against the inner wall of the mounting cylinder 6, thus clamping and fixing the photovoltaic pile 21. In this embodiment, to avoid affecting the strength of the mounting cylinder 6 while maintaining clamping force, two hydraulic clamping mechanisms are preferred. The rotary oil supply joint refers to the hydraulic element connecting the rotating component to the fixed oil circuit, ensuring the oil circuit is connected during continuous rotation of the hydraulic system. When the rotating drive component 1 drives the reduction transmission mechanism 2, the connecting ring 5, and the mounting cylinder 6 to rotate synchronously, the hydraulic clamping mechanism clamps the middle part of the photovoltaic pile 21 passing through the mounting cylinder 6 through the opening. The resulting radial clamping force effectively reduces local stress, and clamping the middle part of the photovoltaic pile 21 for rotary construction makes it easier to ensure the verticality of the photovoltaic pile 21.

[0025] The rotary oil supply joint includes an inner cylinder 18 and an outer cylinder 17, which are rotatably fitted together. One of the inner cylinder 18 and the outer cylinder 17 is fixedly mounted on the mounting cylinder 6 and is provided with an oil supply conduit 13 between it and the hydraulic clamping mechanism. The other cylinder is able to rotate relative to the mounting cylinder 6. In this embodiment, the outer cylinder 17 and the inner cylinder 18 are connected by bearings to achieve a rotational fit. The inner diameter of the outer cylinder 17 is equal to the outer diameter of the inner cylinder 18. The axes of the inner cylinder 18, the outer cylinder 17, and the mounting cylinder 6 are collinear. The inner diameter of the inner cylinder 18 is larger than the outer diameter of the mounting cylinder 6. One of the inner cylinder 18 or the outer cylinder 17 is fixedly connected to the rotating component (i.e., the hydraulic clamping mechanism in this embodiment), and an oil supply conduit 13 is arranged between them. The other cylinder remains stationary. External hydraulic oil is connected to the channel on the stationary cylinder through the oil supply conduit 13. The hydraulic oil flows into the annular groove 15 and then into the channel on the cylinder fixedly connected to the rotating component. Finally, it flows into the rotating component through the oil supply conduit 13. The oil supply conduit 13 will not entangle. In this embodiment, the rotating drive component 1 is a hydraulic motor. The hydraulic oil on its stationary side can be supplied to the hydraulic cylinder 11 through the oil supply conduit 13, resulting in high energy utilization.

[0026] An annular groove 15 is formed between the outer cylinder 17 and the inner cylinder 18. A first channel 14 is formed through the inner cylinder 18, with one end of the first channel 14 communicating with the annular groove 15. A second channel 16 is formed through the outer cylinder 17, with one end of the second channel 16 communicating with the annular groove 15. There are two annular grooves 15, which are arranged at intervals along the axial direction of the inner cylinder 18. There are two first channels 14, each corresponding to one of the annular grooves 15, and two second channels 16, each corresponding to one of the annular grooves 15. In this embodiment, the top of the inner cylinder 18 is higher than the top of the outer cylinder 17. One end of the first channel 14 communicates with the annular groove 15, and the other end penetrates the top end face of the inner cylinder 18. By setting two annular grooves 15 and corresponding channels, and by switching the direction of hydraulic oil entry, the rapid extension and retraction of the hydraulic cylinder 11 can be achieved, making the control of the hydraulic cylinder 11 more stable and efficient.

[0027] An anti-rotation plate 7 is provided between the inner cylinder 18 and the power box 3. The bottom end of the anti-rotation plate 7 is fixedly connected to the inner cylinder 18, and the top end is fixedly connected to the power box 3. In this embodiment, the anti-rotation plate 7 includes an elliptical plate and a mounting plate. The elliptical plate has a circular hole in the middle and is fitted onto the outside of the mounting cylinder 6. The inner wall of the elliptical plate does not contact the outer wall of the mounting cylinder 6. The inner diameter of the elliptical plate is equal to the inner diameter of the inner cylinder 18. Connecting frames 8 are fixedly provided on both sides of the bottom of the power box 3. The mounting plate is vertically set and corresponds one-to-one with the connecting frames 8. The top end of the mounting plate is fixedly connected to the connecting frame 8 by bolts or welding. The bottom end of the mounting plate is integrally formed with the elliptical plate. A reinforcing rib is also provided at the connection between the mounting plate and the elliptical plate. The lower surface of the elliptical plate is in contact with the upper surface of the inner cylinder 18 and the two are fixedly connected by bolts. In this embodiment, the two first channels 14 pass through the top end of the inner cylinder 18 and the elliptical plate in sequence. The first channels 14 are connected to the power box 3 through the oil conduit 13.

[0028] An installation ring 9 is fixedly sleeved in the middle of the installation cylinder 6. The installation ring 9 and the installation cylinder 6 are integrally formed. The bottom end of the outer cylinder 17 is fixedly connected to the installation ring 9 by bolts. With this structural design, the hydraulic motor drives the installation cylinder 6 to rotate, and the installation cylinder 6 drives the installation ring 9 and the outer cylinder 17 to rotate synchronously. The inner cylinder 18 is fixed in place by the anti-rotation plate 7. The structure is simple and easy to install.

[0029] The hydraulic clamping mechanism includes a base 10, a hydraulic cylinder 11, and a pile clamping plate 12. The base 10 is welded or integrally formed and fixedly installed on the mounting cylinder 6, and the base 10 is located at the bottom of the mounting ring 9. The hydraulic cylinder 11 is hinged to the base 10 through a cylinder pin. The telescopic end of the hydraulic cylinder 11 is hinged to the pile clamping plate 12 through a piston pin. A sliding groove is opened in the base 10, and the pile clamping plate 12 is slidably installed in the sliding groove of the base 10, which can play a sliding guiding role for the pile clamping plate 12. The hydraulic cylinder 11 is used to drive the pile clamping plate 12 to move closer to or away from the mounting cylinder 6.

[0030] The pile clamp 12 is arc-shaped, and its inner wall matches the photovoltaic pile 21. When the hydraulic cylinder 11 pushes the arc-shaped pile clamp 12 towards the pile body, the arc-shaped contact surface uniformly wraps around the outer periphery of the cylindrical pile body, and the contact area extends along the axial direction of the pile body. During the clamping process, the curvature distribution of the arc-shaped surface disperses the pressure along the circumference of the pile body, avoiding local stress concentration. At the same time, the curvature fit between the arc-shaped clamp and the pile body is improved, generating symmetrically distributed frictional force when a rotational torque is applied, enhancing clamping stability. During the pile driving process, multiple symmetrically arranged arc-shaped clamps constrain the centerline of the pile body, maintaining the perpendicularity of the pile axis through the geometric self-correction characteristics of the curved surface contact.

[0031] A connecting frame 4 is welded to the outside of the power box 3. The connecting frame 4 is fixedly connected to the sliding seat by bolts, so that the torsion power head in the middle of the photovoltaic pile 21 can be connected to the mast 19.

[0032] The pile driver 20 is equipped with a third sensor for monitoring the torque of the rotating power head. The third sensor is electrically connected to the PLC controller. In this embodiment, the third sensor is preferably a hydraulic pressure sensor 30, which is installed at the oil outlet of the oil pump on the body of the pile driver 20. The oil pump is used to deliver hydraulic oil to the hydraulic motor. Based on the data collected by the hydraulic pressure sensor 30, the system can automatically record the torque of the pile.

[0033] The power assembly includes a winch 24, a pulley block, and a wire rope 25. The pulley block includes several fixed pulleys 31 installed at both ends of the mast 19. The wire rope 25 is wound around the winch 24. One end of the wire rope 25 passes over the fixed pulley 31 at the top of the mast 19 and is vertically downward and fixedly connected to the top of the connecting frame 4. The other end of the wire rope 25 passes over the fixed pulley 31 at the bottom of the mast 19 and is vertically upward and fixedly connected to the bottom of the connecting frame 4. In this embodiment, the winch 24 is installed at the top or bottom of the mast 19 on the side away from the power head. There are four fixed pulleys 31, which are located at the four corners of the mast 19. The winch 24 can wind the wire rope 25 to pull up or down to grip the power head in the middle.

[0034] A fourth sensor for monitoring the downward force of the wire rope 25 is provided at the connection point between the wire rope 25 and the bottom of the connecting frame 4. The fourth sensor is electrically connected to the PLC controller. In this embodiment, the fourth sensor is preferably a tension sensor 29. Based on the data collected by the tension sensor 29, the system can automatically record the downward pressure of the pile.

[0035] The working principle of this embodiment is as follows: The piling machine 20 moves to the location where the photovoltaic piles 21 are stacked, and grabs a photovoltaic pile 21 using mechanical grippers. The piling machine 20 moves to the designed pile position, keeping the mast 19 vertical. The winch 24 pulls down the central torsion head via a rope, and the connecting frame 4 and the central torsion head move down to the bottom of the mast 19. The mechanical grippers make the photovoltaic pile 21 vertical, and the spiral end of the bottom of the photovoltaic pile 21 passes through the first central through hole 22 and the second central through hole 23 in sequence, and contacts the ground. The winch 24 pulls up the connecting frame 4 and the power head via a wire rope 25, moving them up to the middle of the photovoltaic pile 21. The two hydraulic cylinders 11 work, driving the two pile clamps 12 to pass through the opening and contact the pile body. The photovoltaic pile 21 is clamped and fixed. At this time, the mechanical gripper releases the photovoltaic pile 21 and moves it to one side. The pile driver 20 readjusts the verticality of the mast 19 and the photovoltaic pile 21 and then begins to drive it into the ground. The oil pump supplies oil to the hydraulic motor. The hydraulic motor drives the installation cylinder 6 to rotate through the reduction transmission mechanism 2. The installation cylinder 6 drives the outer cylinder 17, the base 10, the hydraulic cylinder 11, the pile clamping plate 12 and the photovoltaic pile 21 to rotate synchronously. At the same time, the winch 24 applies a downward force to the connecting frame 4 again through the wire rope 25. The connecting frame 4 moves downward in the vertical direction. The downward driving force is transmitted to the photovoltaic pile 21 through the connecting frame 4 and the power box 3, realizing the knob and downward function of the photovoltaic pile 21. The photovoltaic pile 21 is screwed to the designed elevation to form a pile. The hydraulic cylinder 11 retracts, causing the pile clamp 12 to release the photovoltaic pile 21. The mechanical arm of the pile driver 20 moves the mast 19 upwards, while the winch 24 applies upward tension to the connecting frame 4 via the wire rope 25. The connecting frame 4 and the power head move upwards on the mast 19 until the power head moves out of the top of the pile, completing the screwing-in of one photovoltaic pile 21. The machine is then moved to the photovoltaic pile 21 stacking area to grab the next pile, and the operation is repeated. During the above-mentioned screwing-in construction of the photovoltaic pile 21, the encoder 27 collects the rotational speed data of the photovoltaic pile 21, the displacement sensor 28 collects the downward speed of the photovoltaic pile 21, the tension sensor 29 collects the downward tension of the wire rope 25, and the hydraulic pressure sensor 30 collects the oil supply pressure of the oil pump. The system calculates this pressure value and converts it into the output torque of the hydraulic motor.

[0036] In summary, this embodiment uses encoder 27 to monitor the rotation speed of the photovoltaic pile 21 in real time and displacement sensor 28 to monitor its sinking displacement in real time. The PLC controller calculates the ratio of these two (i.e., the actual pitch) and compares it with a preset value. The system dynamically adjusts the pulling force of winch 24 and the rotation speed of hydraulic motor to ensure that the photovoltaic pile 21 always enters the ground at a constant speed that conforms to its design pitch. This system can automatically record the pile's driving depth, torque, and downward pressure. Based on the torque and pressure, it automatically calculates the pile's bearing capacity and automatically controls the driving depth according to the designed pile bearing capacity. This system is an independent subsystem that can be deployed on various different piling machines 20.

[0037] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A photovoltaic pile synchronous rotary advance control system, characterized in that: The device includes a pile driver and a rotary power head. The pile driver has a mast on its mechanical arm, and a guide rail is opened on the mast along its length. One end of the rotary power head is slidably mounted on the guide rail. The rotary power head is equipped with a first sensor for monitoring the rotational speed of the photovoltaic pile. The mast or the rotary power head is equipped with a second sensor for monitoring the sinking speed of the photovoltaic pile. The pile driver is equipped with a power assembly for driving the rotary power head to move up and down. It also includes a PLC controller, and both the first sensor and the second sensor are electrically connected to the PLC controller.

2. The photovoltaic pile synchronous rotary advance control system according to claim 1, characterized in that: The rotating power head is a centrally located torsion power head.

3. The photovoltaic pile synchronous rotary advance control system according to claim 2, characterized in that: The central clamping power head includes a power box, which contains a rotary drive component. The power box has a first central through hole and a mounting cylinder at one end. The mounting cylinder is connected to the rotary drive component. The mounting cylinder has a second central through hole, which is aligned and communicates with the first central through hole. At least one hydraulic clamping mechanism is fixedly provided on the outer wall of the mounting cylinder along the circumference. An opening is provided on the outer wall of the mounting cylinder for each hydraulic clamping mechanism, and the opening communicates with the interior of the mounting cylinder. A rotary oil supply connector is provided between the hydraulic clamping mechanism and the mounting cylinder.

4. The photovoltaic pile synchronous rotary advance control system according to claim 1, characterized in that: The pile driver is equipped with a third sensor for monitoring the torque of the rotating power head, and the third sensor is electrically connected to the PLC controller.

5. The photovoltaic pile synchronous rotary advance control system according to claim 1, characterized in that: The power assembly includes a winch, a pulley block, and a wire rope. The pulley block includes several fixed pulleys installed at both ends of the mast. The wire rope is wound around the winch. One end of the wire rope passes over the fixed pulley at the top of the mast and is vertically downward and fixedly connected to the top of the rotating power head. The other end of the wire rope passes over the fixed pulley at the bottom of the mast and is vertically upward and fixedly connected to the bottom of the rotating power head.

6. The photovoltaic pile synchronous rotary advance control system according to claim 5, characterized in that: A fourth sensor for monitoring the downward force of the wire rope is provided at the connection between the wire rope and the bottom of the rotating power head. The fourth sensor is electrically connected to the PLC controller.

7. The photovoltaic pile synchronous rotary advance control system according to claim 5, characterized in that: The winch is installed at the top or bottom of the mast on the side facing away from the power head.

8. The photovoltaic pile synchronous rotary advance control system according to claim 5, characterized in that: There are four fixed pulleys, which are located at the four corners of the mast.

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