Guiding self-anchoring device of steel sheet pile driver

Abstract

The invention discloses a guiding self-anchoring device of a steel sheet pile driver, and relates to the technical field of steel sheet pile construction. The problems that in the prior art, a steel sheet pile falls off from a clamp, and the piling steel sheet pile deviates are solved. Two supporting arms of the U-shaped support are provided with oppositely-arranged guide groove holes in the length direction, a rotating shaft is arranged between the two guide groove holes, an electromagnetic suction plate is arranged at the lower end of the rotating shaft, a driven chain wheel is arranged on one end face of the rotating shaft, and a first driving motor is arranged on the rear side face of the rotating shaft. A second driving motor is arranged at the upper end of the U-shaped support, an output shaft of the second driving motor is provided with a reel, a pull rope is wound around the reel, and the pull rope is fixedly connected to the position, close to the center, of the upper end of the rotating shaft. The guiding self-anchoring device of the steel sheet pile driver is installed on the head of the pile driver and used for piling the steel sheet pile, and the steel sheet pile is effectively prevented from falling off from the clamp in the lifting process and deviating in the piling process.

Description

Technical Field

[0001] The invention belongs to the technical field of steel sheet pile construction, and in particular relates to a guide self-anchoring device of a steel sheet pile driver. Background Art

[0002] In the construction industry, steel sheet pile drivers are often used in deep foundation pit projects and steel cofferdam projects. Pile drivers use various methods, such as vibration and impact, to vertically drive U-shaped steel sheet piles into the ground. These piles are used to withstand large horizontal loads and provide a working surface for the construction team. However, there are also numerous problems with vibratory piling operations. Because the pile driver only provides vertical force to the steel sheet piles, the steel sheet piles may shift in position, requiring readjustment and re-driving, impacting the quality and efficiency of the pile driving. Furthermore, when the steel sheet piles are clamped by the pile driver's clamps, they may fall off due to clamp failure, causing unnecessary safety issues. Summary of the Invention

[0003] The present invention provides a guide self-anchoring device for a steel sheet pile driver. The electromagnetic suction plate is adsorbed on the inner side of the steel sheet pile to prevent the steel sheet pile from falling off. At the same time, the electromagnetic suction plate provides lateral support force to the steel sheet pile, effectively preventing the steel sheet pile from deflecting.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The guide self-anchoring device of a steel sheet pile driver disclosed in the present invention includes a U-shaped bracket installed on the pile driver head with an opening facing downward, the first arm of the U-shaped bracket is provided with a first guide slot hole along the length direction thereof, the second arm of the U-shaped bracket is provided with a second guide slot hole along the length direction thereof, the first guide slot hole and the second guide slot hole are arranged opposite to each other, a rotating shaft is rotatably arranged between the first guide slot hole and the second guide slot hole, an electromagnetic suction plate is provided at the lower end of the rotating shaft, a driven sprocket is coaxially fixedly provided on one end surface of the rotating shaft, a first driving motor is provided on the rear side surface of the rotating shaft opposite to one end of the driven sprocket, a driving sprocket is provided on the output shaft of the first driving motor, the driving sprocket and the driven sprocket are driven by a chain, a second driving motor is provided at the upper end of the U-shaped bracket, a first reel is provided on the output shaft of the second driving motor, a first pull rope is wound around the first reel, and a free end of the first pull rope is fixedly connected to the upper end of the rotating shaft near the center position.

[0006] Furthermore, a connecting rod is provided at the lower end of the rotating shaft, and the electromagnetic suction plate is provided at the lower end of the connecting rod.

[0007] Furthermore, there is a gap between the side wall of the connecting rod relative to the first arm of the U-shaped bracket and the first arm of the U-shaped bracket, and there is a gap between the side wall of the connecting rod relative to the second arm of the U-shaped bracket and the second arm of the U-shaped bracket.

[0008] Furthermore, a third drive motor is provided at the upper end of the U-shaped bracket, a second reel is provided on the output shaft of the third drive motor, a second pull rope is wound around the second reel, the reel of the second drive motor and the reel of the third drive motor are respectively facing the two ends of the rotating shaft, the free end of the first pull rope is fixedly connected to one end of the rotating shaft, and the free end of the second pull rope is fixedly connected to the other end of the rotating shaft relative to one end of the first pull rope.

[0009] The beneficial effects of the present invention are:

[0010] The steel sheet pile driver guide self-anchoring device of the present application is installed on the head of the pile driver and is used for lifting and driving steel sheet piles. When the pile driver is driving, the head of the pile driver is lowered, and the two ends of the rotating shaft are located at the lower ends of the second guide slot hole and the first guide slot hole. The rotating shaft rotates to connect the second guide slot hole and the first guide slot hole. The rotating shaft is rotated to adjust the electromagnetic suction plate so that the electromagnetic suction plate is placed in a horizontal direction. The electromagnetic suction plate is close to the inner side of the bottom surface of the steel sheet pile and contacts it. The electromagnetic suction plate is energized and generates magnetism. The electromagnetic suction plate is tightly adsorbed on the inner side of the steel sheet pile. The second drive motor is started, and the output shaft of the second drive motor rotates forward, driving the first reel to rotate forward, driving the first pull rope to be retracted, thereby pulling up and lifting the steel sheet pile. The rotating shaft is in the position where the steel sheet pile is heavy. The steel sheet pile is in an inclined state, and the first driving motor is started. The output shaft of the first driving motor rotates, driving the active sprocket fixed on the output shaft of the first driving motor to rotate. The active sprocket and the driven sprocket are driven by a chain transmission to drive the driven sprocket to rotate. The driven sprocket is fixed on the rotating shaft, driving the rotating shaft to rotate, driving the electromagnetic suction plate arranged at the lower end of the rotating shaft to rotate, and driving the steel sheet pile adsorbed on the electromagnetic suction plate to rotate, and adjusting the angle of the steel sheet pile so that the steel sheet pile is in a vertical state, which is convenient for the clamp to clamp on the steel sheet pile. After the clamp is clamped on the upper end of the steel sheet pile, the first drive motor and the second drive motor are stopped; the pile driver starts to drive the pile. During the operation of the pile driver, the electromagnetic suction plate is in a powered state, and the electromagnetic suction plate always maintains a tight adsorption state with the steel sheet pile. The clamp clamps the steel sheet pile and the electromagnetic suction plate adsorption provides double protection for steel sheet pile driving, effectively preventing the steel sheet pile from falling off, ensuring the safety of on-site personnel and reducing safety hazards; the magnetic attraction of the electromagnetic suction plate on the steel sheet pile plays a role in giving the steel sheet pile a lateral support force, so that the steel sheet pile is driven vertically into the ground, avoiding the deviation of the steel sheet pile after being driven into the ground, ensuring The quality of steel sheet pile driving is improved. At the same time, the first drive motor stops working, the rotating shaft stops rotating and is locked. When the steel sheet pile is offset, a reverse force is generated to prevent the steel sheet pile from offsetting. The electromagnetic suction plate is used to ensure the accuracy of the steel sheet pile driving position, improve the one-time success rate of steel sheet pile driving, shorten the piling period, and greatly improve the quality and efficiency of steel sheet pile driving. After the steel sheet pile driving is completed, the electromagnetic suction plate is powered off, the electromagnetic suction plate is separated from the steel sheet pile, and the next steel sheet pile driving is continued. The operation is simple and convenient, and there is no need for workers to hold the steel sheet pile by hand and repeatedly adjust the angle of the steel sheet pile, which reduces the labor intensity of the workers and saves labor costs. In summary, the pile driver using the steel sheet pile driver guide self-anchoring device of the present application is simple to operate, avoids safety problems caused by the falling of steel sheet piles, shortens the piling period, improves the quality and efficiency of piling, and is particularly suitable for U-shaped steel sheet pile driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 2. It is a front view of a guide self-anchoring device of a steel sheet pile driver provided by an embodiment of the present invention;

[0013] Figure 2 This is a side view of the connection between the first drive motor, the driving sprocket, the chain, the driven sprocket and the rotating shaft of the guide self-anchor device of the steel sheet pile driver provided by an embodiment of the present invention;

[0014] Figure 3 This is a side view of a steel sheet pile driver guide self-anchoring device provided by an embodiment of the present invention installed on the head of the pile driver;

[0015] Figure 4 This is a front view of a steel sheet pile driver guide self-anchoring device provided by an embodiment of the present invention installed on the head of the pile driver;

[0016] Figure 5 It is a schematic diagram of the steel sheet pile driver's guided self-anchoring device lifting the steel sheet pile provided by an embodiment of the present invention.

[0017] Reference numerals:

[0018] U-shaped bracket 1, first guide slot 101, rotating shaft 2, electromagnetic suction plate 3, connecting rod 4, driven sprocket 5, first pull rope 6, third drive motor 7, second drive motor 8, first drive motor 9, chain 10, driving sprocket 11, clamp 12, pile driver head 13, steel sheet pile 14. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5As shown, the guide self-anchoring device of the steel sheet pile driver of the present invention comprises a U-shaped bracket 1 installed on the head 13 of the pile driver with its opening facing downward, the first arm of the U-shaped bracket 1 is provided with a first guide slot 101 along its length direction, the second arm of the U-shaped bracket 1 is provided with a second guide slot along its length direction, the first guide slot 101 and the second guide slot are arranged opposite to each other, a rotating shaft 2 is rotatably arranged between the first guide slot 101 and the second guide slot, an electromagnetic suction plate 3 is provided at the lower end of the rotating shaft 2, and one end of the rotating shaft 2 is provided with an electromagnetic suction plate 3. A driven sprocket 5 is coaxially fixedly mounted on the rotating shaft 2. A first drive motor 9 is mounted on the rear side of one end of the rotating shaft 2 relative to the driven sprocket 5. A driving sprocket 11 is mounted on the output shaft of the first drive motor 9. The driving sprocket 11 and the driven sprocket 5 are driven by a chain 10. A second drive motor 8 is mounted on the upper end of the U-shaped bracket 1. A first reel is mounted on the output shaft of the second drive motor 8. A first pull rope 6 is wound around the first reel. The free end of the first pull rope 6 is fixedly connected to the upper end of the rotating shaft 2 near the center. The electromagnetic suction plate, the first drive motor, and the second drive motor can be connected to a battery installed in the cab of the pile driver via wires for power supply. The electromagnetic suction plate, the first control switch, and the battery are electrically connected via wires. The first drive motor, the second control switch, and the battery are also electrically connected via wires. The second drive motor, the third control switch, and the battery are also electrically connected via wires. The first, second, and third control switches are installed in the cab of the pile driver for easy operation by the operator. In order to facilitate the fixed connection between the pull rope and the rotating shaft, a lifting ring can be welded on the upper part of the rotating shaft, and the free end of the pull rope is tied to the lifting ring. The free end of the pull rope is the other end of the pull rope relatively fixed to one end of the reel. The U-shaped bracket 1 can be fixedly mounted on the pile driver head 13 by bolts.

[0022] The guide self-anchoring device of the steel sheet pile driver based on the above structure is installed on the head 13 of the pile driver and is used to lift and drive the steel sheet pile 14. When the pile driver is driving, the head 13 of the pile driver is lowered, and the two ends of the rotating shaft 2 are located at the lower ends of the second guide slot hole and the first guide slot hole 101. The rotating shaft 2 is rotated to connect the second guide slot hole and the first guide slot hole 101. The rotating shaft 2 is rotated to adjust the electromagnetic suction plate 3 so that the electromagnetic suction plate 3 is placed in a horizontal direction. The electromagnetic suction plate 3 is close to the inner side of the bottom surface of the steel sheet pile 14 and contacts it. The electromagnetic suction plate 3 is energized and generates magnetism. The electromagnetic suction plate 3 is tightly adsorbed on the inner side of the steel sheet pile 14. The second drive motor 8 is started, and the output shaft of the second drive motor 8 rotates forward, driving the first reel to rotate forward, driving the first pull rope 6 to be reeled up, thereby pulling up and lifting the steel sheet pile 14. The rotating shaft 2 is reeled on the steel sheet pile 14. The steel sheet pile 14 is rotated under the action of force, and is lifted to the height range that the clamp 12 of the pile driver can clamp. The steel sheet pile 14 is in an inclined state, and the first drive motor 9 is started. The output shaft of the first drive motor 9 rotates, driving the active sprocket 11 fixedly arranged on the output shaft of the first drive motor 9 to rotate. The active sprocket 11 and the driven sprocket 5 are driven by the chain 10 to drive the driven sprocket 5 to rotate. The driven sprocket 5 is fixedly arranged on the rotating shaft 2, driving the rotating shaft 2 to rotate, driving the electromagnetic suction plate 3 arranged at the lower end of the rotating shaft 2 to rotate, and driving the steel sheet pile 14 adsorbed on the electromagnetic suction plate 3 to rotate, and adjusting the angle of the steel sheet pile 14 so that the steel sheet pile 14 is in a vertical state, which is convenient for the clamp 12 to clamp After the clamp 12 is tightly clamped on the upper end of the steel sheet pile 14, the first drive motor 9 and the second drive motor 8 are stopped; the pile driver starts to drive the pile. During the operation of the pile driver, the electromagnetic suction plate 3 is in a powered state, and the electromagnetic suction plate 3 always maintains a tight adsorption state with the steel sheet pile 14. The clamp 12 clamps the steel sheet pile 14 and the electromagnetic suction plate 3 adsorbs to provide double protection for the steel sheet pile 14 during piling, effectively preventing the steel sheet pile 14 from falling off, ensuring the safety of on-site personnel, and reducing safety hazards; the magnetic attraction of the electromagnetic suction plate 3 on the steel sheet pile 14 plays a role in giving the steel sheet pile 14 a lateral support force, so that the steel sheet pile 14 is vertically driven into the ground, avoiding the steel sheet pile 14 from deflecting after being driven into the ground The phenomenon ensures the quality of the steel sheet pile 14 piling. At the same time, the first drive motor 9 stops working, the rotating shaft 2 stops rotating and is locked. When the steel sheet pile 14 deviates, a reverse force is generated to prevent the steel sheet pile 14 from deviating. Cooperating with the electromagnetic suction plate 3, the accuracy of the steel sheet pile 14 driving position is guaranteed, the success rate of the steel sheet pile 14 piling is improved, the piling period is shortened, and the steel sheet pile piling quality and piling efficiency are greatly improved. After the steel sheet pile piling is completed, the electromagnetic suction plate 3 is powered off, and the electromagnetic suction plate 3 is separated from the steel sheet pile 14, and the next steel sheet pile 14 piling is continued. The operation is simple and convenient, and there is no need for workers to hold the steel sheet pile 14 by hand and repeatedly adjust the angle of the steel sheet pile 14, which reduces the labor intensity of workers and saves labor costs.In summary, the pile driver using the steel sheet pile driver guide self-anchoring device installed with the present application is easy to operate, avoids safety issues caused by the falling off of steel sheet piles, shortens the piling period, improves the piling quality and efficiency, and is particularly suitable for U-shaped steel sheet pile piling. The pile driving steps using the pile driver using the steel sheet pile driver guide self-anchoring device installed with the present application are as follows: a. Debug the steel sheet pile driver guide self-anchoring device so that the two ends of the rotating shaft 2 are located at the lower ends of the second guide slot hole and the first guide slot hole 101, and the electromagnetic suction plate 3 is in a vertical state; b. Start the pile driver and lower the pile driver head 13, start the first drive motor 9 to adjust the electromagnetic suction plate 3 to a horizontal direction, energize the electromagnetic suction plate 3 to generate a strong magnetic force, and adsorb it on the inner side of the bottom surface of the flat steel sheet pile 14; c. Lift the pile driver head 13 and start the first drive motor 9 to reverse and adjust the electromagnetic suction plate 3 to a vertical state. In the vertical direction, the steel sheet pile 14 is also in a state perpendicular to the ground; d. Start the second drive motor 8 to rotate forward to lift the steel sheet pile 14 so that it can be fully clamped by the clamp 12 of the pile driver head 13, and stop the second drive motor 8; e. Start piling; f. After the piling is completed, the electromagnetic suction plate 3 is powered off and loses its magnetic force, and the second drive motor 8 is started to reverse, and the first pull rope 6 is lowered. The two ends of the rotating shaft 2 are reset to the lower ends of the second guide slot hole and the first guide slot hole 101, and the next steel sheet pile 14 is continued to be piled. After all the steel sheet piles 14 are piled, the first drive motor 9 is started and the electromagnetic suction plate 3 is retracted. When pulling out the steel sheet pile 14, first clamp it with the clamp 12 and pull it out. After it is pulled to a certain height, lower the electromagnetic suction plate 3. The electromagnetic suction plate 3 is energized and adsorbed on the inner side of the steel sheet pile 14. After the steel sheet pile 14 is completely pulled out, place the steel sheet pile 14 on an open space and adjust the direction of the electromagnetic suction plate 3 while lowering it so that it is finally in a horizontal direction. The electromagnetic suction plate 3 is powered off, the clamp 12 is released, the pile pulling is completed, and the electromagnetic suction plate 3 is retracted.

[0023] As an implementable method, Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 As shown, a connecting rod 4 is provided at the lower end of the rotating shaft 2 , and the electromagnetic suction plate 3 is provided at the lower end of the connecting rod 4 .

[0024] The connecting rod 4 facilitates the installation of the electromagnetic suction plate 3. The connecting rod 4 is a Z-shaped structure. One end of the connecting rod 4 of the Z-shaped structure is welded to the lower end of the rotating shaft 2. The electromagnetic suction plate 3 is installed on the outer side of the other end of the connecting rod 4 of the Z-shaped structure. The magnetic attraction force of the electromagnetic suction plate 3 on the steel sheet pile provides the steel sheet pile 14 with better lateral support.

[0025] like Figure 1 、 Figure 4As shown, there is a gap between the side wall of the first arm of the U-shaped bracket 1 and the first arm of the U-shaped bracket 1, and there is a gap between the side wall of the second arm of the U-shaped bracket 1 and the second arm of the U-shaped bracket 1.

[0026] The connecting rod 4 is clearance-matched with the inner side of the first arm and the inner side of the second arm of the U-shaped bracket 1, which facilitates the rotation of the rotating shaft 2 and plays a limiting role to prevent the rotating shaft 2 from moving laterally. At the same time, it is conducive to the rotating shaft 2 to slide smoothly back and forth along the first guide slot 101 and the second guide slot.

[0027] like Figure 1 、 Figure 4 As shown, a third drive motor 7 is provided at the upper end of the U-shaped bracket 1, a second reel is provided on the output shaft of the third drive motor 7, a second pull rope is wound around the second reel, the reel of the second drive motor 8 and the reel of the third drive motor 7 are respectively facing the two ends of the rotating shaft 2, the free end of the first pull rope 6 is fixedly connected to one end of the rotating shaft 2, and the free end of the second pull rope is fixedly connected to the other end of the rotating shaft 2 relative to one end of the first pull rope 6.

[0028] The second drive motor 8 and the third drive motor 7 are simultaneously started, and tension is simultaneously generated on both ends of the shaft 2 through the first pull rope 6 and the second pull rope, ensuring that the rotating shaft 2 slides upward more smoothly along the first guide slot 101 and the second guide slot, thereby ensuring smooth lifting of the steel sheet pile. The second drive motor 8 and the third drive motor 7 can use a synchronous controller to control the rope retraction. Displacement sensors (such as rotary encoders or ranging code disks) are installed in the motor reducers of the second drive motor 8 and the third drive motor 7. The synchronous controller is electrically connected to the displacement sensors and the motors of the second drive motor 8 and the third drive motor 7 via wires. The synchronous controller receives data from the displacement sensors in real time, calculates the displacement deviation between the second drive motor 8 and the third drive motor 7, and adjusts the motor speeds of the second drive motor 8 and the third drive motor 7 based on the displacement deviation, thereby ensuring that the second drive motor 8 and the third drive motor 7 retract synchronously. The synchronous controller can be powered by a battery in the cab of the pile driver.

[0029] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. The guide self-anchor device of the steel sheet pile driver is characterized by: The invention comprises a U-shaped bracket (1) with an opening downwardly mounted on a pile driver head (13); a first arm of the U-shaped bracket (1) is provided with a first guide slot (101) along its length direction; a second arm of the U-shaped bracket (1) is provided with a second guide slot along its length direction; the first guide slot (101) and the second guide slot are arranged opposite to each other; a rotating shaft (2) is rotatably arranged between the first guide slot (101) and the second guide slot; an electromagnetic suction plate (3) is provided at the lower end of the rotating shaft (2); and a driven sprocket (5) is coaxially fixedly provided on one end face of the rotating shaft (2). A first driving motor (9) is provided on the rear side of one end of the rotating shaft (2) relative to the driven sprocket (5), a driving sprocket (11) is provided on the output shaft of the first driving motor (9), the driving sprocket (11) and the driven sprocket (5) are chain-driven by a chain (10), a second driving motor (8) is provided on the upper end of the U-shaped bracket (1), a first reel is provided on the output shaft of the second driving motor (8), a first pull rope (6) is wound around the first reel, and a free end of the first pull rope (6) is fixedly connected to the upper end of the rotating shaft (2) near the center position.

2. The guide self-anchoring device of the steel sheet pile driver according to claim 1, characterized in that: A connecting rod (4) is provided at the lower end of the rotating shaft (2), and the electromagnetic suction plate (3) is provided at the lower end of the connecting rod (4).

3. The guide self-anchoring device of the steel sheet pile driver according to claim 2, characterized in that: There is a gap between the side wall of the connecting rod (4) relative to the first arm of the U-shaped bracket (1) and the first arm of the U-shaped bracket (1), and there is a gap between the side wall of the connecting rod (4) relative to the second arm of the U-shaped bracket (1) and the second arm of the U-shaped bracket (1).

4. The guide self-anchoring device of the steel sheet pile driver according to claim 1, characterized in that: A third drive motor (7) is provided at the upper end of the U-shaped bracket (1), a second reel is provided on the output shaft of the third drive motor (7), a second pull rope is wound around the second reel, the reel of the second drive motor (8) and the reel of the third drive motor (7) are respectively oriented toward the two ends of the rotating shaft (2), the free end of the first pull rope (6) is fixedly connected to one end of the rotating shaft (2), and the free end of the second pull rope is fixedly connected to the other end of the rotating shaft (2) relative to the end of the first pull rope (6).

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