A self-hooking device of a dynamic compactor

Abstract

The utility model discloses a kind of self-hooking devices of dynamic compactor, it is related to dynamic compactor technical field, including rammer and suspension head, the top of the rammer is fixedly connected with connecting buckle, the top of the connecting buckle is provided with the tip structure of taper, the inside of the connecting buckle is provided with through-hole, the bottom of the suspension head is provided with the connecting groove compatible with connecting buckle, and the inside of the suspension head is also provided with installation cavity.The utility model is by setting movable hook and reset spring in the inside of suspension head, when connecting buckle and completely buckle enter connecting groove, hook can be buckled into the inside of through-hole under the action of reset spring, and then hang connecting buckle, when rammer needs to be separated, double-end hydraulic cylinder works can push hook, make hook forcibly separate from through-hole, so that rammer falls, the hook device can be automatically buckled in connecting buckle by the gravity effect of suspension head, and it is also simple and convenient when separating.

Description

Technical Field

[0001] This utility model relates to the field of dynamic compaction machine technology, specifically a self-hooking device for a dynamic compaction machine. Background Technology

[0002] Dynamic compaction, a widely used construction technique for foundation treatment, primarily involves raising a large-mass tamping hammer to a certain height and then letting it fall freely, using its impact energy to compact the ground and improve the bearing capacity and stability of the foundation. During this construction process, the dynamic compaction machine needs to repeatedly perform operations such as raising and lowering the hammer, compacting, and re-hooking.

[0003] In existing technologies, dynamic compaction machines typically use wire ropes and winches to lift the hammer, and the connection and disconnection between the wire rope and the hammer are achieved manually or semi-automatically. After one compaction operation, the hammer falls to the ground, requiring workers to approach the work area and manually reattach the wire rope to the hammer before the next lifting operation can begin. This operating mode has several drawbacks:

[0004] First, frequent manual hooking is not only inefficient and seriously affects the overall construction progress, but also becomes a key bottleneck restricting work efficiency, especially in large-scale, continuous construction scenarios. Second, the construction site environment is complex, with safety hazards such as the risk of falling hammers and injuries from moving mechanical parts, and operators working at close range are highly susceptible to personal injury accidents. Therefore, this utility model proposes a self-hooking device for a dynamic compaction machine. Utility Model Content

[0005] Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a self-hooking device for a dynamic compaction machine.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a self-hooking device for a dynamic compaction machine, comprising a hammer and a suspension head, wherein a connecting buckle is fixedly connected to the top of the hammer, the top of the connecting buckle is provided with a conical tip structure, and a through hole is provided inside the connecting buckle;

[0009] The bottom of the suspension head has a connecting groove adapted to the connecting buckle, and the interior of the suspension head also has an installation cavity. The installation cavity has a movable hook, and a double-headed hydraulic cylinder is fixedly connected inside the installation cavity. The output end of the double-headed hydraulic cylinder abuts against one side of the hook, and a guide post is fixedly connected to one side of the hook. A return spring is sleeved on the guide post. By setting a movable hook and a return spring inside the suspension head, when the connecting buckle is fully engaged in the connecting groove, the hook can engage inside the through hole under the action of the return spring, thus hooking the connecting buckle. When it is necessary to release the hammer, the double-headed hydraulic cylinder can push the hook, forcibly releasing the hook from the through hole, so that the hammer can fall. This hook device can automatically engage with the connecting buckle by relying on the gravity of the suspension head, and the two are also simple and convenient to disengage, improving the practicality of the device.

[0010] Preferably, the side wall of the suspension head is provided with a guide hole for the movable installation of the guide column.

[0011] Preferably, the top of the suspension head is provided with a hanging hole, and a movable pulley is connected to the hanging hole.

[0012] Preferably, the movable pulley is connected to a winch via a wire rope.

[0013] Preferably, there are multiple hooks, and the multiple hooks are arranged in a circular array inside the mounting cavity.

[0014] Preferably, the bottom of the connecting groove is provided with an arc-shaped inclined inlet.

[0015] Preferably, the bottom of the hook is movably fastened inside the through hole.

[0016] Preferably, each hook is fixedly connected to at least two guide posts.

[0017] Beneficial effects:

[0018] Compared with existing technologies, this self-hooking device for dynamic compaction machines has the following advantages:

[0019] This invention features a movable hook and a return spring inside the suspension head. When the connecting buckle is fully engaged in the connecting groove, the hook, under the action of the return spring, engages inside the through hole, thus securing the connecting buckle. When the hammer needs to be disengaged, the double-headed hydraulic cylinder pushes the hook, forcibly disengaging it from the through hole, allowing the hammer to fall. This hook device automatically engages with the connecting buckle using the gravity of the suspension head, and disengagement is simple and convenient, improving the practicality of the device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This is a cross-sectional view of the suspension head of this utility model;

[0024] Figure 4 This is a cross-sectional view of the connecting buckle of this utility model.

[0025] In the picture:

[0026] 1. Hammer; 2. Connecting buckle; 4. Suspension head; 5. Hook; 6. Double-headed hydraulic cylinder; 7. Return spring; 8. Moving pulley; 9. Wire rope; 201. Tip structure; 202. Through hole; 401. Connecting groove; 402. Mounting cavity; 403. Hanging hole; 404. Guide hole; 4011. Inclined inlet; 501. Guide post. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-4 As shown, this utility model provides a technical solution: a self-hooking device for a dynamic compaction machine, including a hammer 1 and a suspension head 4. A connecting buckle 2 is fixedly connected to the top of the hammer 1. The top of the connecting buckle 2 is provided with a conical tip structure 201. A through hole 202 is opened inside the connecting buckle 2.

[0029] The bottom of the suspension head 4 in this utility model is provided with a connecting groove 401 that matches the connecting buckle 2. The bottom of the connecting groove 401 is provided with an arc-shaped inclined inlet 4011. The suspension head 4 is also provided with a mounting cavity 402. The mounting cavity 402 is provided with a movable hook 5. A double-headed hydraulic cylinder 6 is also fixedly connected inside the mounting cavity 402. The output end of the double-headed hydraulic cylinder 6 abuts against one side of the hook 5. A guide post 501 is also fixedly connected to one side of the hook 5. A return spring 7 is sleeved on the guide post 501. The suspension head 4 is equipped with a movable hook 5 and a return spring 7. When the connecting buckle 2 is fully engaged in the connecting groove 401, the hook 5 can be engaged in the through hole 202 under the action of the return spring 8, thereby hooking the connecting buckle 2. When it is necessary to release the hammer 1, the double-headed hydraulic cylinder 6 can push the hook 5 to force the hook 5 to disengage from the through hole 202, so that the hammer can fall. This hook device can be automatically engaged with the connecting buckle 2 by the gravity of the suspension head 4, and the two can be easily and conveniently disengaged, which improves the practicality of the device.

[0030] Please refer to the following carefully. Figure 2 and Figure 3 The side wall of the suspension head 4 is provided with a guide hole 404 for the guide column 501 to be installed movably. The top of the suspension head 4 is provided with a hanging hole 403. A movable pulley 8 is connected to the hanging hole 403. The movable pulley 8 is connected to a winch through a wire rope 9.

[0031] Please refer to the following carefully. Figure 3 There are multiple hooks 5, and multiple hooks 5 are arranged in a ring array inside the mounting cavity 402. The bottom of the hook 5 is movably fastened inside the through hole 202. Each hook 5 is fixedly connected to at least two guide posts 501.

[0032] Working principle: The self-hooking device for a dynamic compaction machine provided by this utility model mainly includes two stages: automatic hooking and hydraulic unhooking, realizing fully automated operation of connection and separation between the hammer and the suspension head.

[0033] During the hammer-raising phase, the suspension head, pulled by a winch, descends via a wire rope and a movable pulley until its bottom connecting groove aligns with the connecting buckle on top of the hammer. Because the bottom of the connecting groove has an arc-shaped inclined inlet, and the top of the connecting buckle is designed with a conical tip, alignment can still be achieved even with a slight misalignment between the two. As the suspension head continues to fall and presses against the connecting buckle, gravity causes the buckle to gradually enter the connecting groove. Once the buckle is fully embedded in the groove, its internal through-hole aligns with the hook position within the mounting cavity. At this point, the previously compressed return spring releases its elastic potential energy, pushing the hook along the guide post towards the through-hole, causing the end of the hook to engage within the through-hole, thus completing the automatic connection. Multiple hooks arranged in a circular array move synchronously, ensuring a secure and reliable connection.

[0034] During the compaction phase, the winch winds up the rope, lifting the suspension head and the attached hammer to the predetermined height. Then, the control system activates the double-headed hydraulic cylinder, whose output pushes the hook outward, overcoming the return spring's force and disengaging it from the through-hole, thus releasing the locking mechanism. At this point, the hammer separates from the suspension head and falls freely under gravity, completing the impact compaction of the ground.

[0035] After unhooking, the suspension head can descend again to repeat the automatic hooking process and enter the next work cycle. The entire process requires no manual intervention, significantly improving operational efficiency and safety, while also reducing the impact load on the wire rope and winch system, thus extending the equipment's service life.

[0036] In summary, this device achieves a closed-loop operation of "automatic hooking - lifting - hydraulic unhooking - free fall hammer" in dynamic compaction by combining mechanical structure with hydraulic control. It has the advantages of reasonable structure, reliable operation and convenient maintenance, and is suitable for various dynamic compaction engineering construction scenarios.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these 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 self-hooking device for a dynamic compaction machine, comprising a hammer (1) and a suspension head (4), characterized in that: The top of the ram (1) is fixedly connected to a connecting buckle (2), the top of the connecting buckle (2) is provided with a conical tip structure (201), and the inside of the connecting buckle (2) is provided with a through hole (202). The bottom of the suspension head (4) is provided with a connecting groove (401) that is compatible with the connecting buckle (2), and the interior of the suspension head (4) is also provided with an installation cavity (402). The interior of the installation cavity (402) is provided with a movable hook (5), and the interior of the installation cavity (402) is also fixedly connected with a double-headed hydraulic cylinder (6). The output end of the double-headed hydraulic cylinder (6) abuts against one side of the hook (5), and one side of the hook (5) is also fixedly connected with a guide post (501). A return spring (7) is sleeved on the guide post (501).

2. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: The side wall of the suspension head (4) is provided with a guide hole (404) for the guide column (501) to be movably installed.

3. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: The top of the suspension head (4) is provided with a hanging hole (403), and a movable pulley (8) is connected to the hanging hole (403).

4. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: The movable pulley (8) is connected to a winch via a wire rope (9).

5. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: There are multiple hooks (5), and the multiple hooks (5) are arranged in a ring array inside the mounting cavity (402).

6. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: The bottom of the connecting groove (401) is provided with an arc-shaped inclined inlet (4011).

7. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: The bottom of the hook (5) is movably fastened inside the through hole (202).

8. The self-hooking device for a dynamic compaction machine according to claim 1, characterized in that: Each hook (5) is fixedly connected to at least two guide posts (501).

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