A pile-holding device for large-diameter steel pipe pile sinking

Abstract

The application discloses a large-diameter steel pipe pile sinking pile holding device, which comprises a mounting frame and a lower pile holding cylinder, the lower pile holding cylinder is fixedly arranged on the front side of the mounting frame, and an upper pile holding cylinder is slidably arranged on the front side of the mounting frame and located on the top of the lower pile holding cylinder, and the application relates to the technical field of steel pipe piles. The large-diameter steel pipe pile sinking pile holding device is provided with a quick adjusting mechanism, a distance pile holding mechanism and a centralized control mechanism on the front side of the mounting frame, so that the device can quickly adjust the center of the steel pipe pile in a rocking state with different specifications during the process of centrally holding the steel pipe pile, and the steel pipe pile can be vertically spaced and held at the same time, and the centering pressing plate in the quick adjusting mechanism can be automatically tightened after the upper pile holding cylinder is lifted to a specified position, so that the rocking steel pipe pile can be automatically and quickly centered and positioned.

Description

Technical Field

[0001] This invention relates to the field of steel pipe pile technology, specifically to a pile-holding device for driving large-diameter steel pipe piles. Background Technology

[0002] Steel pipe pile driving is a key process in bridge foundation construction at sea or in water. Steel pipe piles are used for positioning and installation support of large-tonnage precast components such as bridge piers and abutments. It is characterized by high construction accuracy requirements, complex working conditions, and a large number of piles to be driven.

[0003] To ensure installation accuracy, steel pipe piles are usually hoisted into a pile-holding device, which guides them centrally to provide installation accuracy.

[0004] While existing pile-driving devices can center steel pipe piles, they inevitably have shortcomings in practical use. One such shortcoming is the lack of a widely applicable front-end centralized adjustment mechanism. This makes it inconvenient to quickly center steel pipe piles of varying sizes that are in motion, relying solely on fixed three or four-point positioning. Therefore, a pile-driving device for large-diameter steel pipe piles is proposed to address these issues. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pile-holding device for driving large-diameter steel pipe piles, which solves the problem that relying on fixed three or four-point positioning makes it inconvenient to quickly center and adjust steel pipe piles of varying sizes that are in a swinging motion.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pile-gripping device for driving large-diameter steel pipe piles, comprising an installation frame and a lower pile-gripping cylinder. The lower pile-gripping cylinder is fixedly disposed on the front side of the installation frame, and an upper pile-gripping cylinder is slidably disposed on the front side of the installation frame and at the top of the lower pile-gripping cylinder. A first hydraulic telescopic cylinder is fixedly connected inside both the lower and upper pile-gripping cylinders, and several first hydraulic telescopic cylinders are arranged equidistantly around the perimeter. A guide roller is rotatably mounted on the extension end of each of the first hydraulic telescopic cylinders via a bracket. A quick-adjustment mechanism is disposed inside both the lower and upper pile-gripping cylinders. A spacing pile-gripping mechanism is disposed on the front side of the installation frame, and a centralized control mechanism for use with the quick-adjustment mechanism is disposed on the front side of the installation frame.

[0007] Preferably, the quick-adjustment mechanism includes two ring plates, each rotatably mounted inside the lower and upper pile-holding cylinders via bearings. A polygonal groove is formed at the top of each ring plate, and several sliding blocks are equidistantly connected around the inside of the polygonal groove. A central pressure plate is fixedly connected to the top of each sliding block, and a limit rod is rotatably mounted on the top of the central pressure plate. Top plates are fixedly connected to the inner walls of both the lower and upper pile-holding cylinders, and several limit slots, matching the limit rods, are formed at equal intervals around the top of the top plates. An arc-shaped toothed push plate is fixedly connected to the surface of the ring plates.

[0008] Preferably, the spacing pile clamping mechanism includes a second hydraulic telescopic cylinder, which is fixedly mounted on the rear side of the mounting frame via a bracket. The end of the extension of the second hydraulic telescopic cylinder and the rear side of the upper pile clamping cylinder are both fixedly connected to a mounting frame. Rollers are rotatably arranged between the two sides of the inner cavity of the mounting frame, and a push-pull plate is rotatably connected between the two rollers. Two push-pull plates are symmetrically arranged.

[0009] Preferably, the centralized control mechanism includes a centralized control rod, which is fixedly mounted on the bottom of the top arc-shaped toothed push plate. The top of the bottom arc-shaped toothed push plate has a centralized control groove that slides and adapts to the centralized control rod. A column is fixedly connected to the front side of the mounting frame via a bracket. A spiral groove is formed on the surface of the column. A vertical groove communicating with the spiral groove is formed on the surface of the column. A gear sleeve is rotatably mounted on the surface of the upper pile-holding cylinder via a bracket and a bearing. A movable rod that matches the vertical groove and the spiral groove is fixedly connected to the inner wall of the gear sleeve.

[0010] Preferably, a storage groove is provided inside the central pressure plate at the top, a pressure strip is slidably connected inside the storage groove, a spring is fixedly connected between the pressure strip and the storage groove, a button is installed on the inner wall of the storage groove, and a number of indicator lights for use with the button are installed equidistantly around the top of the upper pile cylinder.

[0011] Preferably, the surface of the movable rod is rotatably provided with a sliding sleeve, and the end of the movable rod is provided with a first ball bearing.

[0012] Preferably, the pressing surface of the central pressure plate is provided with a plurality of second balls.

[0013] Preferably, a limiting groove is provided on the front side of the mounting bracket, and a limiting slider is slidably connected inside the limiting groove, and the front side of the limiting slider is fixedly connected to the rear side of the upper pile cylinder.

[0014] Preferably, both sides of the front side of the mounting bracket are provided with through grooves that are compatible with the push-pull plate.

[0015] Preferably, the top of the bent part of the mounting bracket is provided with mounting holes, and a plurality of mounting holes are provided at equal intervals.

[0016] This invention provides a pile-gripping device for driving large-diameter steel pipe piles. Compared with existing technologies, it has the following advantages:

[0017] (1) The pile clamping device for driving large-diameter steel pipe piles, by setting a quick adjustment mechanism, a spacing clamping mechanism and a centralized control mechanism on the front side of the mounting frame, enables the device to quickly adjust the centering of steel pipe piles of different specifications and in a swaying state through the quick adjustment mechanism during the process of centering the steel pipe piles. Simultaneously, through the above cooperation, it can also perform vertical spacing clamping of the steel pipe piles, and after the upper clamping cylinder rises to the designated position, it automatically tightens the centering pressure plate in the quick adjustment mechanism, so that the swaying steel pipe piles can be automatically and quickly centered and positioned.

[0018] (2) The pile clamping device for driving large-diameter steel pipe piles reduces frictional resistance by setting a second ball on the extrusion surface of the central pressure plate. When the central pressure plate extrudes and adjusts the steel pipe pile in the center, the second ball can reduce frictional resistance.

[0019] (3) The pile holding device for driving large-diameter steel pipe piles uses a pressure bar, spring and button between the centering pressure plate and the indicator light. The centering pressure plate can be pressed against the steel pipe pile by the pressure bar, so that the indicator light can be activated. The number of indicator lights lit can help the staff understand the centering adjustment progress.

[0020] (4) The large-diameter steel pipe pile driving device uses a sliding sleeve and a first ball bearing respectively on the surface and end of the movable rod to enable the movable rod to move smoothly in the trajectory inside the vertical groove and the spiral groove through the above-mentioned cooperation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the present invention from another perspective;

[0023] Figure 3 This is a schematic diagram of the internal structure of the mounting bracket of the present invention;

[0024] Figure 4 This is a schematic diagram (I) of the centralized control mechanism structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the quick-adjustment mechanism structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the pile-holding cylinder structure of the present invention;

[0027] Figure 7 This is a schematic diagram (II) of the centralized control mechanism structure of the present invention;

[0028] Figure 8 For the present invention Figure 7 A magnified view of a section at point A in the middle;

[0029] Figure 9 This is a schematic diagram of the internal structure of the storage slot of the present invention;

[0030] Figure 10 This is a demonstration diagram of the closing of the central pressure plate structure of the present invention.

[0031] In the diagram: 1. Mounting frame; 2. Lower pile clamping cylinder; 3. Upper pile clamping cylinder; 4. First hydraulic telescopic cylinder; 5. Guide roller; 6. Quick adjustment mechanism; 601. Ring plate; 602. Polygonal slide groove; 603. Sliding block; 604. Centering pressure plate; 605. Limiting rod; 606. Top plate; 607. Limiting slot; 608. Arc-shaped toothed push plate; 7. Spacing pile clamping mechanism; 701. Second hydraulic telescopic cylinder; 702. Mounting frame; 703. Roller; 704. Push-pull plate; 8. Centralized control mechanism; 801. Centralized control rod; 802. Centralized control slot; 803. Column; 804. Spiral groove; 805. Vertical groove; 806. Gear sleeve; 807. Movable rod; 9. Storage slot; 10. Pressure strip; 11. Spring; 12. Button; 13. Indicator light; 14. Sliding sleeve; 15. First ball bearing; 16. Second ball bearing; 17. Limiting slide groove; 18. Limiting slider; 19. Through groove; 20. Mounting hole. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] Please see Figures 1-10 This invention provides a technical solution: a pile clamping device for driving large-diameter steel pipe piles, including a mounting frame 1 and a lower pile clamping cylinder 2. The lower pile clamping cylinder 2 is fixedly installed on the front side of the mounting frame 1. An upper pile clamping cylinder 3 is slidably installed on the front side of the mounting frame 1 and at the top of the lower pile clamping cylinder 2. A first hydraulic telescopic cylinder 4 is fixedly connected inside both the lower pile clamping cylinder 2 and the upper pile clamping cylinder 3. Several first hydraulic telescopic cylinders 4 are arranged equidistantly around the frame. A guide roller 5 is rotatably installed at the end of the extension of the first hydraulic telescopic cylinder 4 through a bracket. A limiting groove 17 is opened on the front side of the mounting frame 1. A limiting slider 18 is slidably connected inside the limiting groove 17. The front side of the limiting slider 18 is fixedly connected to the rear side of the upper pile clamping cylinder 3. A mounting hole 20 is opened at the top of the bend of the mounting frame 1. Several mounting holes 20 are equidistantly opened.

[0034] In a preferred embodiment, to facilitate quick centering adjustment of the steel pipe pile, both the lower pile-holding cylinder 2 and the upper pile-holding cylinder 3 are equipped with a quick-adjustment mechanism 6. The quick-adjustment mechanism 6 includes two ring plates 601, which are rotatably mounted inside the lower pile-holding cylinder 2 and the upper pile-holding cylinder 3 via bearings. A polygonal groove 602 is provided on the top of the ring plate 601, and several sliding blocks 603 are equidistantly connected around the inside of the polygonal groove 602. A central pressure plate 604 is fixedly connected to the top of the sliding block 603. A limit rod 605 is rotatably set on the top of the central pressure plate 604. A top plate 606 is fixedly connected to the inner wall of both the lower pile cylinder 2 and the upper pile cylinder 3. Several limit slots 607 that are used in conjunction with the limit rods 605 are equidistantly opened around the top of the top plate 606. An arc-shaped toothed push plate 608 is fixedly connected to the surface of the ring plate 601. Several second balls 16 are provided on the pressing surface of the central pressure plate 604.

[0035] The top center pressure plate 604 has a storage groove 9 inside, and a pressure strip 10 is slidably connected inside the storage groove 9. A spring 11 is fixedly connected between the pressure strip 10 and the storage groove 9. A button 12 is installed on the inner wall of the storage groove 9. Several indicator lights 13 that are used in conjunction with the button 12 are installed equidistantly around the top of the upper pile cylinder 3. For detailed explanation: the extension length of the pressure strip 10 is greater than that of the second ball bearing 16. Secondly, a thin plate is provided on the other side of the center pressure plate 604. The thickness of the thin plate is less than that of the center pressure plate 604, and the thin plate is offset from the pressure strip 10. This will not affect the concentrated adjustment of the pressure strip 10 and the steel pipe pile. Furthermore, the center pressure plate 604 can be tightly fitted with the adjacent center pressure plates 604 through the thin plate, so that several center pressure plates 604 can press in the same direction to complete the expansion and contraction of the combined space.

[0036] As a preferred embodiment, to facilitate multi-point clamping of steel pipe piles at intervals, a spacing clamping mechanism 7 is provided on the front side of the mounting frame 1. The spacing clamping mechanism 7 includes a second hydraulic telescopic cylinder 701. The second hydraulic telescopic cylinder 701 is fixedly mounted on the rear side of the mounting frame 1 by a bracket. The end of the extension of the second hydraulic telescopic cylinder 701 and the rear side of the upper clamping cylinder 3 are both fixedly connected to a mounting frame 702. Rollers 703 are rotatably arranged between the two sides of the inner cavity of the mounting frame 702. Push-pull plates 704 are rotatably connected between the two rollers 703. Two push-pull plates 704 are symmetrically arranged. Through slots 19 for use with push-pull plates 704 are opened on both sides of the front side of the mounting frame 1.

[0037] In a preferred embodiment, to facilitate automatic centering adjustment of the steel pipe pile, a centralized control mechanism 8 is provided on the front side of the mounting frame 1, which is used in conjunction with the quick-adjustment mechanism 6. The centralized control mechanism 8 includes a centralized control rod 801, which is fixedly mounted on the bottom of the top arc-shaped toothed push plate 608. A centralized control groove 802 that slides and adapts to the centralized control rod 801 is provided on the top of the bottom arc-shaped toothed push plate 608. A column 803 is fixedly connected to the front side of the mounting frame 1 through a bracket. A spiral groove 804 is provided on the surface of the column 803. A vertical groove 805 that communicates with the spiral groove 804 is provided on the surface of the column 803. A gear sleeve 806 is rotatably mounted on the surface of the upper pile-holding cylinder 3 through a bracket and bearing. A movable rod 807 that is used in conjunction with the vertical groove 805 and the spiral groove 804 is fixedly connected to the inner wall of the gear sleeve 806. A sliding sleeve 14 is rotatably mounted on the surface of the movable rod 807. A first ball bearing 15 is provided at the end of the movable rod 807.

[0038] In use, the steel pipe pile is first hoisted to the top of the upper pile cylinder 3 by hoisting equipment, and then passes through the lower pile cylinder 2 through the upper pile cylinder 3. At this time, the steel pipe pile is kept suspended in the air. After centering and adjustment, the steel pipe pile is lowered to make it fall to the actual construction site. After the steel pipe pile contacts the ground, the top of the steel pipe pile is hammered downward with a pile hammer on site.

[0039] After the steel pipe pile is suspended and passes through the upper pile-holding cylinder 3 and the lower pile-holding cylinder 2, the operator activates the second hydraulic telescopic cylinder 701, which causes the rear mounting frame 702 and roller 703 to move forward with the push-pull plate 704. The push-pull plate 704 is pushed up gradually, and the rise of the push-pull plate 704 drives the upper pile-holding cylinder 3 to rise on the surface of the steel pipe pile, performing multi-point pile holding and centering limit;

[0040] The upper pile-holding cylinder 3 rises, causing the top arc-shaped toothed push plate 608 and gear sleeve 806 to rise. The gear sleeve 806 drives the movable rod 807 to enter the spiral groove 804 along the vertical groove 805. Accompanied by the squeezing and cooperation with the spiral groove 804, the movable rod 807 drives the gear sleeve 806 to rotate. The rotation of the gear sleeve 806 meshes with the top arc-shaped toothed push plate 608, causing the arc-shaped toothed push plate 608 to drive the ring plate 601 to rotate. The top arc-shaped toothed push plate 608 simultaneously drives the bottom arc-shaped toothed push plate 608 to rotate synchronously through the cooperation of the control rod 801 and the control groove 802.

[0041] The rotation of the ring plate 601 synchronously drives the sliding block 603 and the centering pressure plate 604 to rotate. Since the limiting rod 605 at the top of the centering pressure plate 604 is limited by the limiting groove 607, the centering pressure plate 604 slides synchronously on the top of the ring plate 601 as the ring plate 601 rotates. This causes the space enclosed by several centering pressure plates 604 to decrease synchronously, and the pressing surfaces of several centering pressure plates 604 to press the steel pipe pile synchronously until the steel pipe pile is centered. After the steel pipe pile is centered, the first hydraulic telescopic cylinder 4 is activated, which causes the first hydraulic telescopic cylinder 4 to reinforce the steel pipe pile through the guide roller 5.

Claims

1. A pile-gripping device for driving large-diameter steel pipe piles, comprising an installation frame (1) and a lower pile-gripping cylinder (2), wherein the lower pile-gripping cylinder (2) is fixedly disposed on the front side of the installation frame (1), characterized in that: An upper pile-holding cylinder (3) is slidably arranged on the front side of the mounting frame (1) and on the top of the lower pile-holding cylinder (2). A first hydraulic telescopic cylinder (4) is fixedly connected inside both the lower pile-holding cylinder (2) and the upper pile-holding cylinder (3). Several first hydraulic telescopic cylinders (4) are arranged equidistantly around each other. A guide roller (5) is rotatably installed at the end of the extension end of the first hydraulic telescopic cylinder (4) through a bracket. A quick-adjustment mechanism (6) is provided inside both the lower pile-holding cylinder (2) and the upper pile-holding cylinder (3). A spacing pile-holding mechanism (7) is provided on the front side of the mounting frame (1). A centralized control mechanism (8) used in conjunction with the quick-adjustment mechanism (6) is provided on the front side of the mounting frame (1). The quick-adjustment mechanism (6) includes a ring plate (601), the top of which is provided with a polygonal sliding groove (602), and a number of sliding blocks (603) are equidistantly connected around the inside of the polygonal sliding groove (602). A central pressure plate (604) is fixedly connected to the top of the sliding block (603), and a limit rod (605) is rotatably provided on the top of the central pressure plate (604). The inner walls of the lower pile cylinder (2) and the upper pile cylinder (3) are both fixedly connected with a top plate (606), and a number of limit slots (607) that are used in conjunction with the limit rods (605) are equidistantly opened around the top of the top plate (606). Two ring plates (601) are provided, and the two ring plates (601) are rotatably disposed inside the lower pile-holding cylinder (2) and the upper pile-holding cylinder (3) respectively through bearings. An arc-shaped toothed push plate (608) is fixedly connected to the surface of the ring plate (601). The centralized control mechanism (8) includes a centralized control rod (801), which is fixedly installed at the bottom of the top arc-shaped toothed push plate (608). The top of the bottom arc-shaped toothed push plate (608) is provided with a centralized control groove (802) that is slidably adapted to the centralized control rod (801). The front side of the mounting frame (1) is fixedly connected to a column (803) by a bracket. The surface of the column (803) is provided with a spiral groove (804). The surface of the column (803) is provided with a vertical groove (805) that communicates with the spiral groove (804). The surface of the upper pile-holding cylinder (3) is rotatably provided with a gear sleeve (806) through a bracket and a bearing. The inner wall of the gear sleeve (806) is fixedly connected with a movable rod (807) that is matched with the vertical groove (805) and the spiral groove (804).

2. The pile clamping device for driving large-diameter steel pipe piles according to claim 1, characterized in that: The spacing pile holding mechanism (7) includes a second hydraulic telescopic cylinder (701). The second hydraulic telescopic cylinder (701) is fixedly mounted on the rear side of the mounting frame (1) by a bracket. The end of the extension of the second hydraulic telescopic cylinder (701) and the rear side of the upper pile holding cylinder (3) are both fixedly connected to a mounting frame (702). Rollers (703) are rotatably arranged between the two sides of the inner cavity of the mounting frame (702). Push-pull plates (704) are rotatably connected between the two rollers (703), and two push-pull plates (704) are symmetrically arranged.

3. The pile-driving device for large-diameter steel pipe piles according to claim 2, characterized in that: The center pressure plate (604) at the top has a storage groove (9) inside. A pressure strip (10) is slidably connected inside the storage groove (9). A spring (11) is fixedly connected between the pressure strip (10) and the storage groove (9). A button (12) is installed on the inner wall of the storage groove (9). Several indicator lights (13) that are used in conjunction with the button (12) are installed equidistantly around the top of the upper pile cylinder (3).

4. The pile clamping device for driving large-diameter steel pipe piles according to claim 3, characterized in that: The surface of the movable rod (807) is rotatably provided with a sliding sleeve (14), and the end of the movable rod (807) is provided with a first ball bearing (15).

5. A pile-driving device for large-diameter steel pipe piles according to claim 4, characterized in that: The pressing surface of the central pressure plate (604) is provided with a number of second balls (16).

6. A pile-driving device for large-diameter steel pipe piles according to claim 5, characterized in that: The mounting bracket (1) has a limiting groove (17) on its front side. The limiting groove (17) is slidably connected to a limiting slider (18), and the front side of the limiting slider (18) is fixedly connected to the rear side of the upper pile cylinder (3).

7. A pile-driving device for large-diameter steel pipe piles according to claim 6, characterized in that: Both sides of the front side of the mounting bracket (1) are provided with through slots (19) that are used in conjunction with the push-pull plate (704).

8. A pile-driving device for large-diameter steel pipe piles according to claim 7, characterized in that: The mounting bracket (1) has mounting holes (20) at the top of the bend, and several mounting holes (20) are equally spaced.

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