Pile gripper and underwater deep cement mixing pile ship piling system

Abstract

The utility model relates to the technical field of pile grippers, in particular to a pile gripper and an underwater deep cement mixing pile ship piling system.The pile gripper comprises a transition beam, connecting front arms and a connecting rear arm, the two connecting front arms are arranged on the first side of the transition beam in a protruding mode, and first sliding blocks are arranged at the free ends of the connecting front arms; the first sliding blocks on the different connecting front arms are opposite and spaced. The two connecting rear arms are arranged on the second side of the transition beam in a protruding mode, second sliding blocks are arranged on the connecting rear arms, and the second sliding blocks on the different connecting rear arms are opposite and spaced. The two opposite and spaced first sliding blocks are arranged, and the two first sliding blocks can be in sliding fit with the sliding grooves in the drill rod, so that the drill rod is fixed in the horizontal direction, and pile embracing is achieved; the two opposite and spaced second sliding blocks are arranged, the two second sliding blocks can be in sliding fit with the pile frame, and the height of the pile gripper is convenient to adjust; the pile gripper is simple in structure and convenient to disassemble, and has high structural reliability and use flexibility.

Description

Technical Field

[0001] This utility model relates to the field of pile gripper technology, and in particular to a pile gripper and an underwater deep cement mixing pile driving system for ships. Background Technology

[0002] Currently, most pile grippers used both domestically and internationally employ a clamping method to hold the pile or drill rod. The main components of a pile gripper include a clamping mechanism, a drive system, a support frame, a control system, and safety devices. The clamping mechanism can be a jaw or a clamp, made of high-strength steel with a wear-resistant surface treatment. The drive system is used to drive the clamping mechanism; mechanical systems can use a motor and reducer, while hydraulic systems can use a hydraulic station or a cylinder. The support frame is used to fix and connect the clamping mechanism; it may be made of welded steel sections or modularly connected with connectors.

[0003] During use, technicians found that the above-mentioned mechanism has a complex structure, making daily use and subsequent maintenance complex, time-consuming and labor-intensive. Moreover, in many cases, abnormalities in the hydraulic drive or control system can lead to damage to the pile gripper or destruction of the pile gripper structure. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems existing in the background technology, such as the complex structure of the existing pile gripper, the need for a drive system to control the movement of the clamping mechanism, and the fact that the drive system is prone to failure leading to damage to the pile gripper. This utility model provides a pile gripper and a piling system for underwater deep cement mixing pile vessels.

[0005] In a first aspect, the present invention provides a pile gripper, comprising a transition beam, a connecting front arm, and a connecting rear arm. Two connecting front arms protrude from a first side of the transition beam, and the free ends of the connecting front arms are provided with first sliders, which are opposite to and spaced apart from each other on the connecting front arms. Two connecting rear arms protrude from a second side of the transition beam, and the connecting rear arms are provided with second sliders, which are opposite to and spaced apart from each other on the connecting rear arms. The first side and the second side are opposite to each other.

[0006] The pile gripper of this utility model is provided with two opposing and spaced first sliders, which can slide and engage with the grooves on the drill rod to fix the drill rod in the horizontal direction and achieve pile gripping without the need for additional hydraulic devices and control systems. It is also provided with two opposing and spaced second sliders, which can slide and engage with the pile frame to facilitate adjustment of the height of the pile gripper. The pile gripper of this utility model has a simple structure, is easy to disassemble, and has high structural reliability and flexibility of use.

[0007] Preferably, the free end of the connecting forearm is provided with a first slider seat, the first slider protruding relative to the first slider seat; the second slider protruding relative to the side of the connecting rear arm.

[0008] Preferably, the connecting forearm includes a first arm segment and a second arm segment connected to each other. The first arm segment is connected to the transition beam and is inclined relative to the transition beam. The second arm segment is parallel to the transition beam. The first slider is disposed at the end of the second arm segment. The two connecting forearms and the transition beam enclose a semi-enclosed receiving space.

[0009] Preferably, the distance between the two first sliders arranged opposite each other is M, and the distance between the two second sliders arranged opposite each other is N, where N > M.

[0010] Preferably, the width of the second slider is B, and the width of the first slider is b, where B > b.

[0011] Preferably, the distance between the first slider and the transition beam is L, and the distance between the second slider and the transition beam is l, where L > l.

[0012] Preferably, it also includes chain boxes, with two chain boxes respectively disposed at both ends of the transition beam, and the upper end of the chain boxes being open.

[0013] Preferably, the transition beam is provided with a pin seat, the pin seat is provided with a first pin hole, the chain box is provided with a second pin hole, and the chain box is engaged with the pin seat.

[0014] In a second aspect, this utility model provides an underwater deep cement mixing pile driving system for a vessel, including a drill rod, a hull, and a pile gripper as described above. The outer wall of the drill rod is provided with a first sliding groove, and two first sliding grooves are symmetrically arranged. The first slider is slidably engaged with the first sliding groove. The hull is provided with a pile frame, and the pile frame is provided with a second sliding groove. The second slider is slidably engaged with the second sliding groove.

[0015] The underwater deep cement mixing pile driving system of this utility model uses the pile gripper described above. A first groove is provided on the drill rod, which can fix the drill rod in the horizontal direction by cooperating with the first slider in the first groove, thus achieving pile gripping. Moreover, the drill rod can move vertically relative to the pile gripper, which can deliver the drill rod downward. A second groove is provided on the pile frame, which can facilitate the adjustment of the height of the pile gripper by cooperating with the second slider in the second groove, so as to meet the needs of fixing drill rods of different heights.

[0016] In a third aspect, this utility model provides an underwater deep cement mixing pile vessel piling system, including at least two vertically arranged pile grippers as described above, defining two adjacent pile grippers as a first pile gripper and a second pile gripper, wherein: the first pile gripper is located above the second pile gripper, a chain connects the first pile gripper and the second pile gripper, and when the first pile gripper and the second pile gripper approach each other, the chain can fall into the chain box of the second pile gripper.

[0017] The underwater deep cement mixing pile driving system of this utility model forms multiple support points through at least two vertically arranged pile grippers, which helps to improve the stability of the drill rod. The two adjacent pile grippers are connected by a chain. Only the first pile gripper needs to be fixed or driven to maintain the relative position of the two pile grippers. When the two pile grippers are close to each other and the chain is in a relaxed state, the chain can be stored in the chain box to avoid the chain from getting tangled or affecting other structures.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The pile gripper of this utility model is provided with two opposing and spaced first sliders, which can slide and engage with the grooves on the drill rod to fix the drill rod in the horizontal direction and achieve pile gripping without the need for additional hydraulic devices and control systems; it is also provided with two opposing and spaced second sliders, which can slide and engage with the pile frame to facilitate adjustment of the height of the pile gripper; the pile gripper of this utility model has a simple structure, is easy to disassemble, and has high structural reliability and flexibility of use.

[0020] 2. The first underwater deep cement mixing pile driving system of this utility model uses the pile gripper as described above. A first groove is provided on the drill rod, and the drill rod can be fixed in the horizontal direction by the cooperation of the first slider and the first groove to achieve pile gripping. Moreover, the drill rod can move vertically relative to the pile gripper, which can realize the downward delivery of the drill rod. A second groove is provided on the pile frame, which facilitates the adjustment of the height of the pile gripper by the cooperation of the second slider and the second groove to meet the fixing needs of drill rods of different heights.

[0021] 3. The second type of underwater deep cement mixing pile driving system of this utility model forms multiple support points by vertically setting at least two pile grippers, which helps to improve the stability of the drill rod. The two adjacent pile grippers are connected by a chain. Only the first pile gripper needs to be fixed or driven to maintain the relative position of the two pile grippers. When the two pile grippers are close to each other and the chain is in a relaxed state, the chain can be stored in the chain box to avoid the chain from getting tangled or affecting other structures. Attached Figure Description

[0022] Figure 1This is a top view of the pile gripper described in this utility model (section view of the lower connecting forearm portion).

[0023] Figure 2 This is a schematic diagram of the operation of the pile gripper described in this utility model;

[0024] Figure 3 This is a side view of the pile gripper described in this utility model.

[0025] Marked in the image:

[0026] 1-Transition beam;

[0027] 11 - First side; 12 - Second side;

[0028] 2- Connect to the forearm;

[0029] 21-First slider; 22-First slider seat; 23-First arm segment; 24-Second arm segment; 25-Accommodation space;

[0030] 3-Connect the rear arm;

[0031] 31 - Second slider;

[0032] 4-Chain box;

[0033] 5-Drill pipe;

[0034] 6-Pile frame. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0036] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0038] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0039] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0040] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0041] Example 1

[0042] Most existing pile grippers use a clamping arm that can move relative to the pile to hold and fix the pile or drill rod. To drive the clamping arm, a drive system and a control system are required. The drive system provides power, such as through electric or hydraulic drive, while the control system controls the operation of the drive system. During on-site construction, if the drive system or control system malfunctions, the pile gripper may not function properly, affecting the construction period, or even causing damage to the pile gripper.

[0043] To solve the above problems, such as Figures 1 to 3As shown, this embodiment provides a pile clamp, including a transition beam 1 and a connecting front arm 2. Two connecting front arms 2 protrude from the first side 11 of the transition beam 1 and are respectively connected to both ends of the transition beam 1. The free end of the connecting front arm 2 is provided with a first slider 21, and the first sliders 21 on different connecting front arms 2 are opposite to each other and spaced apart.

[0044] Furthermore, it also includes connecting rear arms 3, two connecting rear arms 3 protruding from the second side 12 of the transition beam 1, the connecting rear arms 3 connecting to both ends of the transition beam 1, and the connecting rear arms 3 are provided with second sliders 31, the second sliders 31 on different connecting rear arms 3 being opposite and spaced apart.

[0045] The transition beam 1, the connecting front arm 2, and the connecting rear arm 3 can all be made of steel. The transition beam 1 can be a strip structure. The transition beam 1 is used to connect two opposite and spaced-apart connecting front arms 2 and two opposite and spaced-apart connecting rear arms 3. The first side 11 and the second side 12 are two opposite sides of the transition beam 1. The free end of the connecting front arm 2 refers to the end of the connecting front arm 2 that is away from the transition beam 1.

[0046] The connecting forearm 2 is provided with a first slider 21. The first slider 21 can be a rectangular block protruding from the free end of the connecting forearm 2. Lubricant, such as lubricating oil, can be applied to the first slider 21. The first slider 21 can slide and cooperate with the slide groove or slide track.

[0047] The connecting rear arm 3 is provided with a second slider 31. The second slider 31 can be a rectangular block protruding from the connecting rear arm 3. Lubricant, such as lubricating oil, can be applied to the second slider 31. The second slider 31 can slide and cooperate with the slide groove or slide track.

[0048] In one embodiment, the drill rod 5 is provided with a first groove extending along the length direction. Two first grooves are symmetrically arranged on both sides of the drill rod 5. Two first sliders 21 are respectively engaged with the two first grooves to restrict the movement of the drill rod 5 in the horizontal direction. Moreover, the first sliders 21 can slide along the first grooves to allow the drill rod 5 to move vertically.

[0049] In one embodiment, the device includes a pile frame 6, which has a vertically extending second sliding groove. The two second sliding grooves are symmetrically arranged on both sides of the pile frame 6, and the two second sliders 31 slide in cooperation with the two second sliding grooves respectively, so that the pile gripper can move vertically relative to the pile frame 6.

[0050] The pile gripper described in this embodiment is equipped with two opposing and spaced-apart first sliders 21. These two first sliders 21 can slide and engage with the grooves on the drill rod 5 to fix the drill rod 5 in the horizontal direction, thereby achieving pile gripping without the need for additional hydraulic devices and control systems. Two opposing and spaced-apart second sliders 31 are also provided, which can slide and engage with the pile frame 6 to facilitate adjustment of the pile gripper's height. The pile gripper described in this embodiment has a simple structure, is easy to disassemble, and has high structural reliability and operational flexibility.

[0051] In some embodiments, the free end of the forearm 2 is provided with a first slider seat 22, and the first slider 21 protrudes relative to the first slider seat 22; the second slider 31 protrudes relative to the side of the rear arm 3.

[0052] The first slider seat 22 can be fixedly connected to the free end of the connecting forearm 2. The first slider 21 protrudes relative to the first slider seat 22, so that the first slider 21 can be fitted with a groove or track. The second slider 31 can be disposed on the opposite sides of the two connecting rear arms 3. The second slider 31 protrudes relative to the connecting rear arms 3, so that the second slider 31 can be fitted with a groove or track.

[0053] In some embodiments, the connecting forearm 2 includes a first arm segment 23 and a second arm segment 24 connected to each other, the first arm segment 23 being connected to the transition beam 1 and the second arm segment 24 being connected to the first slider 21.

[0054] The second arm segment 24 is inclined relative to the length direction of the first arm segment 23, the first arm segment 23 is inclined relative to the transition beam 1, and the distance between the ends of the two first arm segments 23 is smaller than the distance between their roots. The second arm segment 24 is parallel to the transition beam 1, and the two connecting forearms 2 and the transition beam 1 enclose a semi-enclosed receiving space 25.

[0055] For a drill rod assembly formed by binding or connecting multiple drill rods 5, a first groove can be provided on the drill rod 5 in the middle, and the other drill rods 5 can be located inside or outside the receiving space 25; for example, for a drill rod assembly composed of 5 drill rods 5, a first groove can be provided on one of the drill rods 5, and the other 4 drill rods 5 are distributed in a rectangle around the aforementioned drill rods 5. When the first slider 21 cooperates with the first groove, two drill rods 5 will be located inside the receiving space 25. In order to accommodate the drill rods 5 placed inside the receiving space 25, this embodiment provides a second arm segment 24 parallel to the transition beam 1 at the end of the first arm segment 23.

[0056] Of course, for drill rod assemblies formed by binding or connecting multiple drill rods 5, an installation rod can be set in it, and a first sliding groove can be set on the installation rod. In this way, it is not necessary to open the sliding groove on the drill rod 5, which facilitates the centralized procurement of drill rods 5.

[0057] In some embodiments, the distance between two opposing first sliders 21 is M, and the distance between two opposing second sliders 31 is N, where N > M.

[0058] The distance between the two first sliders 21 is approximately equal to the diameter of the drill rod 5, and the distance between the two second sliders 31 is approximately equal to the width of the structure on the pile frame 6 used to install the pile gripper.

[0059] In some embodiments, the width of the second slider 31 is B, and the width of the first slider 21 is b, where B > b; the larger width of the second slider 31 is beneficial to improving the connection strength with the pile frame 6.

[0060] In some embodiments, the distance between the first slider 21 and the first side 11 of the transition beam 1 is L, and the distance between the second slider 31 and the second side 12 of the transition beam 1 is l, where L > l, thus forming a larger accommodating space 25 to accommodate the drill rod 5.

[0061] In some embodiments, a chain box 4 is also included, with two chain boxes 4 respectively disposed at both ends of the transition beam 1, and the upper end of the chain box 4 being open.

[0062] The chain box 4 can be a box-shaped structure made of steel plate. The chain box 4 has a cavity inside and an opening at the top so that the chain can enter the cavity through the opening.

[0063] Preferably, the transition beam 1 is provided with a pin seat, the pin seat is provided with a first pin hole, the chain box 4 is provided with a second pin hole, and the chain box 4 is engaged with the pin seat pin.

[0064] The pile gripper described in this embodiment can solve the problem that most pile grippers used on ships have complex structures, which makes them difficult to disassemble and maintain in daily use, leading to maintenance difficulties and equipment damage. The pile gripper described in this embodiment is not only reliable in daily use, but also easy to disassemble and maintain.

[0065] Example 2

[0066] This embodiment provides an underwater deep cement mixing pile driving system for a vessel, including a drill rod 5, a hull, and a pile gripper as described in Embodiment 1.

[0067] In some embodiments, the outer wall of the drill rod 5 is provided with a first sliding groove, two first sliding grooves are symmetrically arranged, the first slider 21 is fitted with the first sliding groove, and the first slider 21 can slide along the first sliding groove.

[0068] Furthermore, the hull is provided with a pile frame 6, and the pile frame 6 is provided with a second sliding groove, and the second slider 31 slides in cooperation with the second sliding groove.

[0069] Drill rod 5 is a hollow tubular structure. During construction, the lower end of drill rod 5 can be inserted into the soil, and concrete or grout can be injected into the soil through the cavity of drill rod 5 to achieve the purpose of reinforcing the soil or forming piles.

[0070] The underwater deep cement mixing pile driving system described in this embodiment uses the aforementioned pile gripper. A first groove is provided on the drill rod 5, which can be used to fix the drill rod 5 horizontally by engaging the first slider 21 with the first groove, thus achieving pile gripping. Moreover, the drill rod 5 can move vertically relative to the pile gripper, enabling the downward delivery of the drill rod 5. A second groove is provided on the pile frame 6, which facilitates the adjustment of the height of the pile gripper by engaging the second slider 31 with the second groove, meeting the fixing needs of drill rods 5 at different heights.

[0071] Example 3

[0072] This embodiment provides an underwater deep cement mixing pile driving system for a vessel, including at least two vertically arranged pile grippers as described in Embodiment 1, with a chain connecting adjacent pile grippers.

[0073] Two adjacent pile grippers are defined as the first pile gripper and the second pile gripper, wherein the first pile gripper is located above the second pile gripper, and a chain connects the first pile gripper and the second pile gripper.

[0074] Preferably, chain boxes 4 are provided at both ends of the transition beam 1. When the first pile holder and the second pile holder come close to each other, the chain can fall into the chain box 4.

[0075] Preferably, the two chains are respectively set at both ends of the transition beam 1.

[0076] Preferably, the lower part of both ends of the pile gripper is provided with a fastening element, such as a lock, which can be fastened to the chain. The number of fastening elements located at the same end of the pile gripper can be two, one of which is connected to the upward-extending chain and the other is connected to the downward-extending chain.

[0077] More preferably, a through hole can be provided on the side wall of the chain box 4 near the transition beam 1. The lower end of the upward-extending chain passes through the through hole and is connected to the fastener, so that the chain can fall into the chain box 4 of the second pile holder when it falls.

[0078] The underwater deep cement mixing pile driving system described in this embodiment forms multiple support points through at least two vertically arranged pile grippers, which helps to improve the stability of the drill rod 5. The two adjacent pile grippers are connected by a chain, and the relative position of the two pile grippers can be maintained by fixing or driving the first pile gripper. When the two pile grippers are close to each other and the chain is in a relaxed state, the chain can be stored in the chain box 4 to avoid the chain from getting tangled or affecting other structures.

[0079] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pile gripper, characterized in that, The system includes a transition beam (1), a connecting front arm (2), and a connecting rear arm (3). Two connecting front arms (2) protrude from the first side (11) of the transition beam (1). The free end of each connecting front arm (2) is provided with a first slider (21). The first sliders (21) on different connecting front arms (2) are opposite to each other and spaced apart. Two connecting rear arms (3) protrude from the second side (12) of the transition beam (1). The connecting rear arms (3) are provided with a second slider (31). The second sliders (31) on different connecting rear arms (3) are opposite to each other and spaced apart. The first side (11) and the second side (12) are opposite to each other.

2. The pile gripper according to claim 1, characterized in that, The free end of the connecting forearm (2) is provided with a first slider seat (22), the first slider (21) protrudes relative to the first slider seat (22); the second slider (31) protrudes relative to the side of the connecting rear arm (3).

3. The pile gripper according to claim 1, characterized in that, The connecting forearm (2) includes a first arm segment (23) and a second arm segment (24) connected to each other. The first arm segment (23) is connected to the transition beam (1) and is inclined relative to the transition beam (1). The second arm segment (24) is parallel to the transition beam (1). The first slider (21) is located at the end of the second arm segment (24). The two connecting forearms (2) and the transition beam (1) enclose a semi-enclosed receiving space (25).

4. The pile gripper according to claim 1, characterized in that, The distance between the two first sliders (21) that are set opposite to each other is M, and the distance between the two second sliders (31) that are set opposite to each other is N, where N > M.

5. The pile gripper according to claim 1, characterized in that, The width of the second slider (31) is B, and the width of the first slider (21) is b, where B > b.

6. The pile gripper according to claim 1, characterized in that, The distance between the first slider (21) and the transition beam (1) is L, and the distance between the second slider (31) and the transition beam (1) is l, where L > l.

7. The pile gripper according to any one of claims 1-6, characterized in that, It also includes chain boxes (4), two chain boxes (4) are respectively set at both ends of the transition beam (1), and the upper end of the chain boxes (4) is open.

8. The pile gripper according to claim 7, characterized in that, The transition beam (1) is provided with a pin seat, the pin seat is provided with a first pin hole, the chain box (4) is provided with a second pin hole, and the chain box (4) is engaged with the pin seat.

9. A deep underwater cement mixing pile driving system for vessels, characterized in that, The device includes a drill rod (5), a hull, and a pile gripper as described in any one of claims 1-8. The outer wall of the drill rod (5) is provided with a first groove, and two first grooves are symmetrically arranged. The first slider (21) is slidably engaged with the first groove. The hull is provided with a pile frame (6), and the pile frame (6) is provided with a second groove. The second slider (31) is slidably engaged with the second groove.

10. A deep underwater cement mixing pile driving system for vessels, characterized in that, Includes at least two vertically arranged pile grippers as described in claim 7 or 8, defining two adjacent pile grippers as a first pile gripper and a second pile gripper, wherein: the first pile gripper is located above the second pile gripper, a chain connects the first pile gripper and the second pile gripper, and when the first pile gripper and the second pile gripper approach each other, the chain can fall into the chain box (4) of the second pile gripper.

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