Hydraulic clamp lifting appliance for steel pipe pile

Abstract

The utility model discloses a steel pipe pile hydraulic clamp lifting appliance which comprises a pile turning device body, a lifting hook used for being connected with external lifting equipment is installed at the top of the pile turning device body, a plurality of sets of guide rails are arranged at the bottom of the pile turning device body along the circumferential side, and clamping assemblies used for clamping and fixing the pile wall of a pipe pile are arranged on the guide rails in a sliding mode. The clamping assembly comprises a sliding seat, an inner clamping plate and an outer clamping plate, the inner clamping plate and the outer clamping plate are arranged on the sliding seat, a guide block is arranged at the top of the inner clamping plate, a pre-tightening piece used for clamping the wall of the pipe pile is arranged on one side of the outer clamping plate, and a driving piece used for driving the outer clamping plate to move is arranged on the sliding seat.

Description

Technical Field

[0001] The utility model relates to a steel pipe pile turning hanger, in particular to a steel pipe pile hydraulic clamp hanger. Background Art

[0002] The pile turner is usually installed inside the steel pipe pile tube, and is hydraulically driven to clamp the steel pipe wall. The steel pipe pile is pulled out of the ground only by the friction between the clamping head and the inner wall of the steel pipe. The existing pile turner has a built-in hydraulic jack, and the size of the existing pile turner is smaller than the size of the pile, and it is suitable for steel pipe piles of different sizes according to the length of the jack. However, because the steel pipe is inserted deep into the ground, the pulling force is very large. The original hydraulic equipment of the pile turner has a large structure, the installation is unchanged, and the structure is very heavy. There is a defect that the friction is insufficient, which affects the pulling effect. For this reason, we propose a hydraulic clamp hanger for steel pipe piles. Utility Model Content

[0003] The utility model aims to provide a hydraulic clamp hanger for steel pipe piles to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic clamp hanger for steel pipe piles, comprising a pile turner body, a hook for connecting to an external lifting device is installed on the top of the pile turner body, a plurality of guide rails are arranged along the circumference of the bottom of the pile turner body, a clamping assembly for clamping and fixing the pile wall of the pipe pile is slidably arranged on the guide rail, the clamping assembly comprises a slide seat and an inner clamping plate and an outer clamping plate arranged on the slide seat, a guide block is arranged on the top of the inner clamping plate, a pre-tightening member for clamping the pile wall of the pipe pile is arranged on one side of the outer clamping plate, and a driving member for driving the outer clamping plate to move is arranged on the slide seat.

[0005] Preferably, the preload member includes a preload plate and a spring, wherein the spring is fixed between the preload plate and the outer clamping plate, the preload plate is slidably arranged between the inner clamping plate and the outer clamping plate, and a clamping area for the pipe pile wall to be clamped is provided between the preload plate and the inner clamping plate, and the width of the clamping area is less than the thickness of the pipe pile wall in the initial state.

[0006] Preferably, a slope is provided on one side of the top of the guide block close to the outer clamping plate, and the height of the preload plate is higher than that of the inner clamping plate.

[0007] Preferably, the guide rail includes a fixed rail and a movable rail. The fixed rail is welded and fixed to the pile turning device column, and a plurality of positioning holes are provided on the fixed rail along the length direction. The movable rail is provided with a plurality of locking holes corresponding to the positioning holes. The movable rail is fixed to the fixed rail by countersunk bolts.

[0008] Preferably, the slide seat is slidably arranged on the moving track, and the slide seat is interference fit on the moving track.

[0009] Preferably, the moving track is provided with a scale.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By arranging a plurality of clamping components for clamping the steel pipe pile on the column of the pile turner, the inner and outer walls of the steel pipe pile are clamped, thereby increasing the fixing strength and improving the stability of the pile turning; by arranging a guide block on the inner clamping plate and a pre-tightening member on the outer clamping plate, it is convenient to perform preliminary positioning when the pile turner is docked with one end of the steel pipe pile, and then clamp and fix it by driving the hydraulic cylinder, thereby improving the docking stability between the pile turner and the steel pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 is a schematic diagram of the embodiment of the invention highlighting the state of the pile turning device clamping the steel pipe pile;

[0014] Figure 2 is a schematic diagram for explaining the embodiment of the present invention, highlighting one side of the hook of the pile turning device;

[0015] Figure 3 This is a structural schematic diagram of one side of the pile turning device clamping assembly in this embodiment;

[0016] Figure 4 yes Figure 2 Enlarged schematic diagram of part A.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Pile turning device body; 2. Hook; 3. Guide rail; 31. Fixed rail; 32. Moving rail; 4. Outer clamping plate; 5. Inner clamping plate; 6. Guide block; 7. Sliding seat; 8. Preload plate; 9. Spring; 10. Slide groove; 11. Inclined surface; 12. Limiting plate; 13. Clamping area; 14. Positioning hole; 15. Locking hole; 16. Scale; 17. Hydraulic cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: a hydraulic clamp hanger for steel pipe piles, wherein Figure 1 It is a schematic diagram for explaining the hoisting device clamping a steel pipe pile, the hoisting device comprises a pile turning device body 1, a hook 2 for connecting to an external lifting device is installed on the top of the pile turning device body 1, a plurality of guide rails 3 are arranged along the circumference of the bottom of the pile turning device body 1, a clamping assembly for clamping and fixing the wall of the pipe pile is slidably arranged on the guide rail 3, the clamping assembly comprises a slide seat 7 and an inner clamping plate 5 and an outer clamping plate 4 arranged on the slide seat 7, a guide block 6 is arranged on the top of the inner clamping plate 5, a pre-tightening member for clamping the wall of the pipe pile is arranged on one side of the outer clamping plate 4, and a driving member for driving the outer clamping plate 4 to move is arranged on the slide seat 7.

[0021] Specifically, the preload member includes a preload plate 8 and a spring 9. The spring 9 is fixed between the preload plate 8 and the outer clamping plate 4. The preload plate 8 is slidably arranged between the inner clamping plate 5 and the outer clamping plate 4. The slide seat 7 is provided with a slide groove 10 with an inverted T-shaped vertical section. The bottom of the preload plate 8 is provided with a T-shaped block that matches the slide groove 10. The preload plate 8 can stably slide on the slide seat 7 through the cooperation of the T-shaped block and the slide groove 10. A clamping area 13 for the pile wall to be clamped is provided between the preload plate 8 and the inner clamping plate 5. The width of the clamping area 13 is in the initial state. In the state of light rain, the thickness of the pile wall of the steel pipe pile, when the pile turner is stuck in one end of the steel pipe pile, the pile wall of the steel pipe pile preferentially slides into the clamping area 13 through the guide block 6 and opens the pre-tightening plate 8, so that the pre-tightening plate 8 of each group of clamping components is first pressed against the steel pipe pile by the action of the spring 9, which plays a role of preliminary pre-tightening and fixing; it should be noted that: the outer clamping plate 4 is provided with limit plates 12 on both sides of the spring 9, and the hydraulic cylinder 17 can drive the outer clamping plate 4 to move and squeeze the pre-tightening plate 8 to avoid the outer clamping plate 4 directly squeezing the pre-tightening plate 8 through the spring 9.

[0022] Specifically, a slope 11 is provided on one side of the top of the guide block 6 close to the outer clamping plate 4, and the height of the pre-tightening plate 8 is higher than that of the inner clamping plate 5. When the steel pipe pile drives the slide 7 to move by contacting the inclined surface 11 of the conductor block, the height of the pre-tightening plate 8 is higher than that of the inner clamping plate 5, which can prevent the pre-tightening plate 8 from sliding when the slide 7 slides, and prevent the steel pipe pile wall from being stuck in the clamping area 13.

[0023] Specifically, the guide rail 3 includes a fixed rail 31 and a movable rail 32. The fixed rail 31 is welded and fixed to the pile turning device column, and a plurality of positioning holes 14 are provided on the fixed rail 31 along the length direction. The movable rail 32 is provided with a plurality of locking holes 15 corresponding to the positioning holes 14. The movable rail 32 is fixed to the fixed rail 31 by countersunk bolts. The movable rail 32 can be fixed to a suitable position of the fixed rail 31 according to the diameter of the steel pipe pile. The movable rail 32 can be detachably arranged on the fixed rail 31, and can be replaced when the movable rail 32 is severely worn.

[0024] Specifically, the slide 7 is slidably disposed on the movable track 32 , and the slide 7 is interference-fitted on the movable track 32 . The slide 7 can be driven to slide on the movable track 32 by applying force, thereby preventing the clamping assembly from sliding randomly.

[0025] Specifically, a scale 16 is provided on the movable track 32, and the clamping assembly can be moved to a suitable position according to the diameter of the steel pipe pile.

[0026] A specific application example of this embodiment is:

[0027] When the device is used, the movable track 32 is first fixed to a suitable position of the fixed track 31 according to the diameter of the steel pipe pile, and then the sliding seat 7 is forced to slide according to the scale 16 on the movable track 32 to adjust the position of the clamping assembly.

[0028] The lifting device lifts the turning device to one end of the steel pipe pile through the hook 2 on the back of the pile turning device, and can manually assist in pushing the turning device toward one side of the steel pipe pile, so that the pile wall of the steel pipe pile contacts and squeezes the inclined surface 11 of the inner guide block 6, thereby driving the slide 7 to slide on the moving track 32, and the steel pipe pile continues to abut against the inclined surface 11 and move toward the clamping area 13, and the pre-tightening plate 8 is stretched open so that the pre-tightening plate 8 compresses the spring 9. After the pile wall at one end of the steel pipe pile is inserted into the clamping area 13, the pre-tightening plate 8 of each group of clamping assemblies presses the outer wall of the steel pipe pile through the action of the spring 9 to form a preliminary fixation; then the hydraulic cylinder 17 drives the outer clamping plate 4 to move toward the side of the pre-tightening plate 8 and presses the pre-tightening plate 8, thereby completing the clamping and fixation of one end of the steel pipe pile, and then the pile turning operation can be carried out.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that modifications may be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel pipe pile hydraulic clamp sling, comprising a pile turning device body (1), a hook (2) for connecting to an external lifting device being installed on the top of the pile turning device body (1), characterized in that: A plurality of guide rails (3) are arranged along the circumference of the bottom of the pile turning device body (1), and a clamping assembly for clamping and fixing the pile wall of the pipe pile is slidably arranged on the guide rail (3), the clamping assembly comprising a slide seat (7) and an inner clamping plate (5) and an outer clamping plate (4) arranged on the slide seat (7), a guide block (6) is arranged on the top of the inner clamping plate (5), and a pre-tightening member for clamping the pile wall of the pipe pile is arranged on one side of the outer clamping plate (4), and a driving member for driving the outer clamping plate (4) to move is arranged on the slide seat (7).

2. A steel pipe pile hydraulic clamp hanger according to claim 1, characterized in that: The pre-tightening member comprises a pre-tightening plate (8) and a spring (9), wherein the spring (9) is fixed between the pre-tightening plate (8) and the outer clamping plate (4), the pre-tightening plate (8) is slidably arranged between the inner clamping plate (5) and the outer clamping plate (4), and a clamping area (13) for the pile wall to be clamped is arranged between the pre-tightening plate (8) and the inner clamping plate (5), and the width of the clamping area (13) is less than the thickness of the pile wall of the small rain pile in the initial state.

3. A steel pipe pile hydraulic clamp hanger according to claim 2, characterized in that: A slope (11) is provided on one side of the top of the guide block (6) close to the outer clamping plate (4), and the height of the preload plate (8) is higher than that of the inner clamping plate (5).

4. A steel pipe pile hydraulic clamp hanger according to claim 1, characterized in that: The guide rail (3) comprises a fixed rail (31) and a movable rail (32); the fixed rail (31) is welded and fixed to the column of the pile turning device, and a plurality of groups of positioning holes (14) are provided on the fixed rail (31) along the length direction; a plurality of groups of locking holes (15) corresponding to the positioning holes (14) are provided on the movable rail (32); and the movable rail (32) is fixed to the fixed rail (31) by countersunk bolts.

5. A steel pipe pile hydraulic clamp hanger according to claim 4, characterized in that: The slide seat (7) is slidably arranged on the movable track (32), and the slide seat (7) is interference-fitted on the movable track (32).

6. A steel pipe pile hydraulic clamp hanger according to claim 5, characterized in that: The movable track (32) is provided with a scale (16).

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