Hydraulic pile driving device

Abstract

The present application discloses a hydraulic piling device, which relates to the field of hydraulic piling technology, and includes a vertical beam. The hydraulic piling device includes a hollow frame structure, and the frame structure is fixedly arranged at the top of the vertical beam, and a clamping assembly is arranged inside the frame structure; the clamping assembly includes a pair of gussets for holding the vertical beam and two or more second cylinders, and the second cylinders are connected to the gussets through an opening and closing connection structure; when the opening and closing connection structure is closed, the pair of gussets surround and cling to the circumference of the vertical beam. The hydraulic piling device of the present application adds a limiting structure, is firmly fixed, and avoids the technical problem of loosening caused by vibration.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic piling, and in particular to a hydraulic piling device. Background Art

[0002] At present, the hydraulic pile hammer is a kind of pile-driving machinery that uses the power of the excavator, its own weight and the weight of the pile to drive the pile into the ground. Compared with the traditional pile hammer, it has the advantages of low noise, no pollution, low vibration, etc., meets environmental protection requirements, and has excellent dynamic characteristics and controllability.

[0003] However, after using the hydraulic pile hammer in actual projects, it was found that the hydraulic pile hammer has a large impact force and a high frequency of pile driving. The hydraulic pile hammer and the excavator body are fixed at a single position with large bolts, which often become loose due to vibration.

[0004] Therefore, those skilled in the art are in urgent need of designing a technical solution to avoid the technical problem of looseness caused by vibration. Summary of the invention

[0005] In view of the defects existing in the prior art, the purpose of the present application is to provide a hydraulic piling device with an additional limiting structure, which is firmly fixed and avoids the technical problem of loosening caused by vibration.

[0006] In order to achieve the above purpose, the technical solution adopted is: a hydraulic piling device, which includes a vertical beam, and the hydraulic piling device includes a hollow frame structure, the frame structure is fixedly arranged on the top of the vertical beam, and a clamping assembly is arranged inside the frame structure; the clamping assembly includes a pair of gussets for holding the vertical beam and more than two second cylinders, and the second cylinders are connected to the gussets through an opening and closing connection structure; when the opening and closing connection structure is closed, the pair of gussets surround and tightly adhere to the circumference of the vertical beam.

[0007] On the basis of the above technical solution, the frame structure comprises an upper bracket with an opening facing downward and a lower bracket with an opening facing upward and a concave shape; the upper bracket and the lower bracket are fixed through double-headed screws.

[0008] On the basis of the above technical solution, the opening and closing connection structure includes a cross bar, two support rods, two connecting rods and two sliders; the second cylinder is arranged vertically upward, the cross bar is horizontally arranged at the movable end of the second cylinder, the two sliders are slidably sleeved on the double-headed screw, the double-headed screw is located under the cross bar, the two support rods are arranged in an inverted V shape, the top ends of the two support rods form a point and are hinged to the cross bar, and the bottom ends of the two support rods are respectively hinged to the two sliders; each slider is fixedly connected to a buckle plate through a connecting rod.

[0009] On the basis of the above technical solution, the middle of the double-headed screw is smooth, and the two sections extending out of the frame structure are provided with external threads; the double-headed screw fixes the upper bracket and the lower bracket through nuts and nuts.

[0010] On the basis of the above technical solution, the hydraulic piling device further comprises an auxiliary component, which is arranged on the outer edge of the side wall of the gusset plate; the auxiliary component comprises a clamping plate, a vertical rod, a cross rod, and a first cylinder;

[0011] The plurality of first cylinders are installed downwards, and the fixed ends thereof are fixed to the bottom surface of the frame structure, and the movable ends of the first cylinders are located on the side surface of the gusset plate; the top ends of the vertical rods are all fixed to the bottom surface of the gusset plate;

[0012] The clamping plates are slidably inserted into the vertical rods, and the top pair of clamping plates is fixedly connected to the movable end of the first cylinder; the two cross rods connect the multiple pairs of clamping plates into two semi-layer structures.

[0013] On the basis of the above technical solution, the left and right hinge points of the cross rod are hinged by pins, and the upper and lower hinge points are hinged by pins and fixed to each layer of the plywood.

[0014] On the basis of the above technical solution, a hydraulic servo oil supply system is arranged inside the vertical beam, and a pile frame is arranged at the lower end of the output part of the hydraulic servo oil supply system.

[0015] On the basis of the above technical solution, the pile frame part can be slidably mounted on the vertical beam, and a hammer head is arranged at the bottom end of the pile frame.

[0016] Based on the above technical solution, the outer wall of the vertical beam is processed with multiple through holes.

[0017] On the basis of the above technical solution, the top end of the vertical beam is connected to the frame structure by screws or welded.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] The present application adds a pair of gusset plates to surround and clamp the circumference of the vertical beam on the basis of the single fixed structure of the prior art, and can control the closing and opening of the gusset plates through the second cylinder and the opening and closing connection structure, and the control is flexible; specifically, through the cooperation among the second cylinder, the cross bar, the support rod, the gusset plates, the connecting rod and the lower bracket, after the fixed assembly is completed, the second cylinder can be controlled so that the movable end of the second cylinder drives the cross bar to move upward, and the cross bar can drive the sliders on both sides to move inward through the support rod, and the two sliders approach each other; then the slider can drive the gusset plates to clamp the side walls of the vertical beam through the connecting rod, which is equivalent to adding a restriction structure at the connection between the vertical beam and the lower bracket, strictly limiting the radial movement of the vertical beam during vibration, and avoiding the problem of loosening due to vibration during piling when a single fixing method is used.

[0020] Furthermore, the hydraulic piling device also has an ingenious structural design through the coordination between the first cylinder, the splint, the diagonal rod and the vertical beam. The first cylinder controls the extension and retraction of the movable end of the first cylinder, so that multiple pairs of splints can be coordinated with the cross rod to achieve equidistant position extension and retraction changes, thereby increasing the clamping range of the vertical beam and the splint, achieving a better auxiliary restriction effect, and further avoiding the technical problem of looseness caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the structure of a hydraulic piling device provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 Structural diagram of the middle support, vertical beams and frame;

[0024] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0025] Figure 4 for Figure 2 A partial enlarged view of B in the middle;

[0026] Description of the drawings: 1. Vertical beam; 2. Hammer; 3. Pile frame; 4. Upper bracket; 5. Auxiliary components; 501. Clamp; 502. Vertical rod; 503. Cross rod; 504. First cylinder; 6. Clamping assembly; 601. Second cylinder; 602. Cross rod; 603. Support rod; 604. Buckle plate; 605. Connecting rod; 606. Slider; 7. Through hole; 8. Hydraulic servo oil supply system; 9. Nut; 10. Gasket; 11. Double-headed screw; 12. Lower bracket; 100. Frame structure. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a hydraulic piling device includes a vertical beam 1. The hydraulic piling device includes a hollow frame structure 100, the frame structure 100 is fixedly arranged at the top of the vertical beam 1, and a clamping assembly 6 is arranged inside the frame structure 100; the clamping assembly 6 includes a pair of clasps 604 for clasping the vertical beam 1 and more than two second cylinders 601, and the second cylinders 601 are connected to the clasps 604 through an opening and closing connection structure; when the opening and closing connection structure is closed, the pair of clasps 604 surround and cling to the circumference of the vertical beam 1. Specifically, the pair of clasps 604 form a closed embracing structure that clings to the vertical beam 1.

[0029] In addition to the single fixed structure of the prior art, the present application adds a pair of clasps 604 for surrounding and clamping the circumference of the vertical beam 1, and can control the closing and opening of the clasps 604 through the second cylinder 601 and the opening and closing connection structure. The control is flexible, and when closing and clamping, the impact of the axial force during piling is greatly reduced, and the loosening problem caused by vibration is weakened or even solved. The structure is firm and reliable.

[0030] Preferably, the frame structure 100 is in the shape of a U-shaped structure.

[0031] In one embodiment, the frame structure 100 includes an upper bracket 4 with an opening facing downward and a lower bracket 12 with an opening facing upward; the upper bracket 4 and the lower bracket 12 are fixed through a double-headed screw 11, and the through-type fixing is firm and reliable, and a welding process can be added when necessary. The solution of the prior art is equivalent to having only the upper bracket 4, and the structure of the upper bracket 4 is different, and it is only satisfied with the direct fixing of the vertical beam 1. The present application adds a lower bracket 12 and changes the structure, providing a structural basis for the clamping assembly 6.

[0032] In one embodiment, the opening and closing connection structure includes a cross bar 602, two support rods 603, two connecting rods 605 and two sliders 606. The second cylinder 601 is arranged vertically upward, the cross bar 602 is arranged horizontally at the movable end of the second cylinder 601, and one cross bar 602 is at least straddled on two second cylinders 601. The two sliders 606 are slidably sleeved on the double-headed screw 11, and the double-headed screw 11 is located below the cross bar 602. The two support rods 603 are arranged in an inverted V shape, and the top ends of the two support rods 603 form a point and are hinged to the cross bar 602. The bottom ends of the two support rods 603 are respectively hinged to the two sliders 606; each slider 606 is fixedly connected to a buckle plate 604 through a connecting rod 605.

[0033] Specifically, the middle of the double-headed screw 11 is smooth, and two sections extending out of the frame structure 100 are provided with external threads; the double-headed screw 11 fixes the upper bracket 4 and the lower bracket 12 through nuts 9 and nuts 9.

[0034] The hydraulic piling device of the present application, through the cooperation among the second cylinder 601, the cross bar 602, the support rod 603, the gusset plate 604, the connecting rod 605 and the lower bracket 12, after the fixed assembly is completed, the second cylinder 601 can be controlled so that the movable end of the second cylinder 601 drives the cross bar 602 to move upward, and the cross bar 602 can drive the sliders 606 on both sides to move inward through the support rod 603, and the two sliders 606 are close to each other; then the slider 606 can drive the gusset plate 604 through the connecting rod 605 to hold the side wall of the vertical beam 1 tightly, which is equivalent to adding a restriction structure at the connection between the vertical beam 1 and the lower bracket 12, strictly limiting the radial movement of the vertical beam 1 during vibration, and avoiding the problem of loosening due to vibration during piling when a single fixing method is used.

[0035] In one embodiment, the hydraulic piling device further includes an auxiliary component 5, which is arranged on the outer edge of the side wall of the pinch plate 604. Specifically, the auxiliary component 5 includes a clamp plate 501, a vertical rod 502, a cross rod 503, and a first cylinder 504. Multiple first cylinders 504 are installed downward, and their fixed ends are fixed to the bottom surface of the frame structure 100, and the movable ends of the first cylinders 504 are arranged downward. The movable ends of the first cylinders 504 are located on the side of the pinch plate 604, and the top ends of the vertical rods 502 are fixed to the bottom surface of the pinch plate 604, serving as guide rails for the clamp plate 501. Multiple vertical rods 502 are arranged on the bottom surface of the pinch plate 604.

[0036] Specifically, there are two first cylinders 504; each first cylinder 504 is responsible for the connection and extension of half of the clamping plates 501. The top pair of clamping plates 501 is set at the movable end of the first cylinder 504, and each pair of clamping plates 501 forms a closed ring structure, tightly hugging the vertical beam 1. The clamping plates 501 are slidably inserted into the vertical rod 502, and multiple pairs of clamping plates 501 form multiple closed ring structures. Two cross rods 503 connect multiple pairs of clamping plates 501 into two half-layer structures. When the opening and closing connection structure is close, the two half-layer structures form multiple closed ring structures, and the cross rods 503 make the distance between layers adjustable.

[0037] The hydraulic piling device of the present application has an ingenious structural design through the cooperation between the first cylinder 504, the clamping plate 501, the cross rod 503 and the vertical beam 1. The first cylinder 504 controls the extension and retraction of the movable end of the first cylinder 504, so that multiple pairs of clamping plates 501 are linked with the cross rod 503 to achieve equidistant position extension and retraction changes, thereby increasing the clamping range of the vertical beam 1 and the clamping plate 501, achieving a better auxiliary restriction effect, and further avoiding the technical problem of looseness caused by vibration.

[0038] In one embodiment, the left and right hinge points of the cross bar 503 are hinged by a pin and are suspended. The upper and lower hinge points are hinged by a pin and fixed to each layer of the clamping plate 501. Each cross bar 503 is only used for the up and down telescopic control of half of the clamping plate 501.

[0039] Preferably, all the second cylinders 601 are controlled synchronously, and all the first cylinders 504 are controlled synchronously.

[0040] In one embodiment, a hydraulic servo oil supply system 8 is disposed inside the vertical beam 1, and a pile frame 3 is disposed at the lower end of the output portion of the hydraulic servo oil supply system 8. Further, a portion of the pile frame 3 can be slidably sleeved on the vertical beam 1, and a hammer head 2 is disposed at the bottom end of the pile frame 3. Specifically, the hammer head 2 at the bottom end of the pile frame 3 is solid, and the rest of the part is hollow and sleeved on the vertical beam 1.

[0041] Furthermore, a plurality of through holes 7 are processed on the outer wall of the vertical beam 1 .

[0042] Preferably, the top end of the vertical beam 1 is connected to the frame structure 100 by screws or welded.

[0043] Preferably, the model of the hydraulic pile hammer is HHP8.

[0044] When the hydraulic piling device is used, the user can first align the hydraulic piling device at the corresponding position, and then insert the double-headed screw 11 into the lower bracket 12 and the upper bracket 4, and finally tighten the bolts 9 on both sides of the double-headed screw 11 to fix the overall structure with the external support structure through the upper bracket 4. During operation, the hydraulic valve in the hydraulic servo oil supply system 8 is operated to control the inlet and outlet of the oil circuit, and the hammer head 2 of the lifting cylinder is lifted to a predetermined height, and then the hydraulic valve is controlled to cut off the oil supply, and the main return oil circuit of the lifting cylinder is opened at the same time, so that the hammer head 2 falls freely to complete the piling work.

[0045] At the same time, after completing the fixed assembly, the user can control the second cylinder 601 so that the movable end of the second cylinder 601 drives the cross bar 602 to move upward, and the cross bar 602 drives the sliders 606 on both sides to move inward through the support rod 603, so that the slider 606 drives the buckle plate 604 and the clamping plate 501 to hold the side wall of the vertical beam 1 through the connecting rod 605, which is equivalent to adding a restriction structure at the connection between the vertical beam 1 and the lower bracket 12, strictly limiting the radial movement of the vertical beam 1 during vibration, and avoiding the problem of loosening due to vibration during piling when a single fixing method is used.

[0046] At the same time, during use, the user can control the extension and retraction of the movable end of the first cylinder 504 through the control of the first cylinder 504, so that multiple pairs of clamps 501 can be linked with the cross rod 503 to achieve equidistant position extension and retraction changes, so that the clamping range of the vertical beam 1 and the clamps 501 is further increased, with better auxiliary restriction effect, and further avoiding the technical problem of looseness caused by vibration.

[0047] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0048] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0049] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A hydraulic piling device, comprising a vertical beam (1), characterized in that: The hydraulic piling device comprises a hollow frame structure (100), the frame structure (100) is fixedly arranged at the top end of the vertical beam (1), and a clamping assembly (6) is arranged inside the frame structure (100); the clamping assembly (6) comprises a pair of clasps (604) for clamping the vertical beam (1) and more than two second cylinders (601), and the second cylinders (601) are connected to the clasps (604) via an opening and closing connection structure; when the opening and closing connection structure is closed, the pair of clasps (604) surround and tightly adhere to the circumference of the vertical beam (1); The frame structure (100) comprises an upper bracket (4) in the shape of a concave letter with its opening facing downward, and a lower bracket (12) in the shape of a concave letter with its opening facing upward; the upper bracket (4) and the lower bracket (12) are fixed through a double-headed screw (11); The opening and closing connection structure comprises a cross bar (602), two support bars (603), two connecting bars (605) and two sliders (606); the second cylinder (601) is arranged vertically upward, the cross bar (602) is arranged horizontally at the movable end of the second cylinder (601), the two sliders (606) are slidably sleeved on the double-headed screw (11), the double-headed screw (11) is located below the cross bar (602), the two support bars (603) are arranged in an inverted V shape, the top ends of the two support bars (603) form a point and are hinged to the cross bar (602), and the bottom ends of the two support bars (603) are respectively hinged to the two sliders (606); each slider (606) is fixedly connected to a buckle plate (604) via a connecting bar (605); The hydraulic piling device further comprises an auxiliary component (5), wherein the auxiliary component (5) is arranged on the outer edge of the side wall of the gusset plate (604); the auxiliary component (5) comprises a clamping plate (501), a vertical rod (502), a cross rod (503), and a first cylinder (504); The plurality of first cylinders (504) are installed downwards, and their fixed ends are fixed to the bottom surface of the frame structure (100), and the movable ends of the first cylinders (504) are located on the side of the buckle plate (604); the top ends of the vertical rods (502) are all fixed to the bottom surface of the buckle plate (604); The clamping plates (501) are slidably inserted into the vertical rods (502), and the top pair of clamping plates (501) are fixedly connected to the movable end of the first cylinder (504); the two cross rods (503) connect the multiple pairs of clamping plates (501) into a two-half-layer structure.

2. A hydraulic piling device as claimed in claim 1, characterized in that: The middle of the double-headed screw (11) is smooth, and two sections extending out of the frame structure (100) are provided with external threads; the double-headed screw (11) fixes the upper bracket (4) and the lower bracket (12) via a nut (9).

3. A hydraulic piling device according to claim 1, characterized in that: The left and right hinge points of the cross bar (503) are hinged to the upper and lower hinge points via a pin shaft and are fixed to each layer of the clamping plate (501).

4. A hydraulic piling device according to claim 1, characterized in that: A hydraulic servo oil supply system (8) is arranged inside the vertical beam (1), and a pile frame (3) is arranged at the lower end of the output part of the hydraulic servo oil supply system (8).

5. A hydraulic piling device according to claim 4, characterized in that: The pile frame (3) is partially slidably mounted on the vertical beam (1), and a hammer head (2) is arranged at the bottom end of the pile frame (3).

6. A hydraulic piling device according to claim 1, characterized in that: The outer wall of the vertical beam (1) is processed with a plurality of through holes (7).

7. A hydraulic piling device according to claim 1, characterized in that: The top end of the vertical beam (1) is connected to the frame structure (100) by means of screws or welding.

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