Pile driving structure of pile driving and pulling machine

Abstract

The pile driving structure of the pile driving and pulling machine comprises a hydraulic hammer, a drill rod and a drill cap, hammer clamping plates are fixedly connected to the two sides of the hydraulic hammer, and a drill cap groove is fixedly connected to the bottom of each hammer clamping plate; the drill rod cap groove at least comprises an upper connecting plate, a lower connecting plate and two first side plates connecting the upper connecting plate and the lower connecting plate, the first side plates are in a flaring shape, and the two sides of each first side plate extend towards the edges of the upper connecting plate and the lower connecting plate. Compared with an existing piling structure, the drill cap groove structure has the advantages that through the flaring-shaped buffer plates of the first side plate, the first frame and the second frame, the load bearing area is effectively increased, the situation of local bending is reduced, larger force can be borne, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of pile drivers, and particularly to a pile driving structure of a pile driver and extractor. Background Art

[0002] In the existing connection mode between the drill rod and the drill cap of the hydraulic pile hammer structure, an inlay connection is adopted, and then the pile rod is connected to the bottom of the drill cap. During the pile driving process, due to the connection form between the drill rod and the drill cap, deformation may occur at the connection position between the drill rod and the drill cap during construction, affecting the pile driving accuracy, and even being damaged and unable to continue construction. A large amount of manpower and time are required for maintenance, affecting the construction efficiency. Based on this, a pile driving structure with a movable drill cap groove (authorized publication number CN212316920U) was designed in 2020. After using this structure for a long time, deformation still occurs at the connection position between the drill rod and the drill cap. Based on this, the utility model provides a pile driving structure of a pile driver and extractor. Content of the Utility Model

[0003] The utility model provides a pile driving structure of a pile driver and extractor, which can solve the problems pointed out in the background art.

[0004] A pile driving structure of a pile driver and extractor includes a hydraulic hammer, a drill rod and a drill cap. Hammer clamps are fixedly connected to both sides of the hydraulic hammer, and a drill cap groove is fixedly connected to the bottom of the hammer clamp.

[0005] The drill cap groove at least includes an upper connecting plate, a lower connecting plate and two side plates I connecting the upper connecting plate and the lower connecting plate. The side plate I is in a flared shape, and its two sides extend towards the edges of the upper connecting plate and the lower connecting plate.

[0006] The two side plates are connected by a support plate.

[0007] The upper connecting plate is connected to the hammer clamp through a frame I, and the lower connecting plate is connected to a frame II.

[0008] The frame I includes two groups of opposite side plates II and side plates III welded to the upper connecting plate, and a connecting plate I welded to the upper sides of the side plates II and side plates III. Through grooves are formed in both side plates II, and through holes opposite to the through grooves are formed in the hydraulic hammer.

[0009] Two connecting plates II are also welded to the connecting plate I, and the two connecting plates II are respectively located outside the two hammer clamps.

[0010] Reinforcing ribs are welded to the upper sides of the connecting plates II and between the connecting plate I and the upper connecting plate.

[0011] The second frame includes a third connecting plate and a buffer plate for connecting the lower connecting plate and the third connecting plate. The buffer plate is fixed to the third connecting plate and the lower connecting plate respectively through rod-shaped connectors. Mounting holes for cooperating with the connectors are provided on the third connecting plate, the buffer plate and the lower connecting plate.

[0012] The buffer plate is C-shaped with its opening facing outwards.

[0013] A plurality of protective plates are fixedly connected to the lower side of the third connecting plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: by adding a bit cap groove, the connection strength between the drill rod and the bit cap is improved. Through the flared first side plate, the first frame, and the buffer plate of the second frame, compared with the existing pile driving structure, the load-bearing area is effectively increased, the occurrence of local bending is reduced, it can withstand greater forces, and the service life is prolonged. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of one perspective of the present utility model;

[0016] Figure 2 is a schematic structural diagram of another perspective of the present utility model;

[0017] Figure 3 is a cross-sectional view of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the bit cap groove of the present utility model.

[0019] Description of the Reference Numerals:

[0020] 1 - hydraulic hammer, 2 - drill rod, 3 - bit cap, 4 - upper connecting plate, 5 - lower connecting plate, 6 - first side plate, 7 - support plate, 8 - second side plate, 9 - third side plate, 10 - first connecting plate, 11 - second connecting plate, 12 - hammer clamping plate, 13 - reinforcing rib, 14 - third connecting plate, 15 - buffer plate, 16 - connector, 17 - protective plate. Detailed Description of the Embodiment

[0021] The following combines the drawings to describe in detail a specific embodiment of the present utility model, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiment.

[0022] As Figures 1 to 4 shown, a pile driving structure of a pile driver provided by an embodiment of the present utility model includes a hydraulic hammer 1, a drill rod 2, and a bit cap 3 connected in sequence;

[0023] Wherein, both sides of the hydraulic hammer 1 are fixedly connected with hammer clamping plates 12, and the bottom of the hammer clamping plates 12 is fixedly connected with a bit cap groove; the bit cap groove at least includes an upper connecting plate 4, a lower connecting plate 5, and two first side plates 6 connecting the upper connecting plate 4 and the lower connecting plate. The first side plates 6 are in a flared shape, and their two sides extend towards the edges of the upper connecting plate 4 and the lower connecting plate 5. As Figure 1 shown, the two sides of the first side plate 6 respectively extend to the intersection of two sides of the upper connecting plate 4 and the lower connecting plate 5. Compared with the existing bit cap groove that only adopts a vertical plate structure, it can effectively increase the load-bearing area, so that the bit cap groove can bear a greater load force and has higher anti-bending ability;

[0024] The two first side plates 6 are connected by a support plate 7. The support plate 7 can adopt a straight plate structure to be connected with parts of the two first side plates 6 and the lower connecting plate 5, or can adopt a frame structure to be connected with parts of the two first side plates 6, the lower connecting plate 5, and the upper connecting plate 4 at the same time;

[0025] In addition, to further improve the anti-impact performance of the piling structure, the upper connecting plate 4 is connected with the hammer clamping plate 12 through a first frame, and the lower connecting plate 5 is connected with a second frame;

[0026] Specifically, the first frame includes two groups of second side plates 8 and third side plates 9 welded on the upper connecting plate 4 and a first connecting plate 10 welded on the upper sides of the second side plates 8 and the third side plates 9. The two second side plates 8 are symmetrically distributed, the two third side plates 9 are symmetrically distributed, and through grooves are opened on both of the two second side plates 8. Through holes opposite to the through grooves are opened on the hydraulic hammer 1 for fixing;

[0027] The bottom of the third side plate 9 is in a trapezoidal structure, which is also for the purpose of increasing the load-bearing area;

[0028] To further improve the strength, two second connecting plates 11 are also welded on the first connecting plate 10 of the bit cap groove, and the two second connecting plates 11 are respectively located outside the two hammer clamping plates 12;

[0029] In addition, reinforcing ribs 13 are welded on the upper sides of the second connecting plates 11 and between the first connecting plate 10 and the upper connecting plate 4;

[0030] The second frame includes a third connecting plate 14 and a buffer plate 15 for connecting the lower connecting plate 5 and the third connecting plate 14. The buffer plate 15 is fixed to the third connecting plate 14 and the lower connecting plate 5 respectively through rod-shaped connectors 16. Mounting holes matching the connectors 16 are opened on the third connecting plate 14, the buffer plate 15, and the lower connecting plate 5. A plurality of protection plates 17 are fixedly connected to the lower side of the third connecting plate 14;

[0031] The buffer plate 15 in this embodiment is C-shaped with its opening facing outwards, which can improve the buffering performance compared with the straight plate structure. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit and basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pile driving structure of a pile driver, comprising a hydraulic hammer (1), a drill rod (2) and a drill cap (3), wherein both sides of the hydraulic hammer (1) are fixedly connected with a hammer clamp (12), characterized in that: The bottom of the hammer clamp (12) is fixedly connected with a drill cap groove; The drill cap slot comprises at least an upper connecting plate (4), a lower connecting plate (5), and two side plates (6) connecting the upper connecting plate (4) and the lower connecting plate; the side plates (6) are flared, with both sides extending toward the edges of the upper connecting plate (4) and the lower connecting plate (5).

2. A pile driving structure of a pile driver as claimed in claim 1, characterized in that: The two side plates are connected via a supporting plate (7).

3. The pile driving structure of a pile driver as claimed in claim 1, characterized in that: The upper connecting plate (4) is connected to the hammer clamp (12) via frame one, and the lower connecting plate (5) is connected to frame two.

4. A pile driving structure of a pile driver as claimed in claim 3, characterized in that: The frame 1 comprises two sets of opposite side plates 2 (8) and 3 (9) welded to the upper connecting plate (4), and a connecting plate 1 (10) welded to the upper sides of the side plates 2 (8) and 3 (9), both side plates 2 (8) are provided with through grooves, and the hydraulic hammer (1) is provided with through holes opposite to the through grooves.

5. The pile driving structure of a pile driver as claimed in claim 4, characterized in that: Two second connecting plates (11) are welded to the first connecting plate (10), and the two second connecting plates (11) are respectively located on the outer sides of the two hammer clamping plates (12).

6. The pile driving structure of a pile driver as claimed in claim 5, characterized in that: Reinforcing ribs (13) are welded to the upper side of the second connecting plate (11) and between the first connecting plate (10) and the upper connecting plate (4).

7. The pile driving structure of a pile driver as claimed in claim 3, characterized in that: The frame 2 comprises a connecting plate 3 (14) and a buffer plate (15) for connecting the lower connecting plate (5) and the connecting plate 3 (14); the buffer plate (15) is respectively fixed to the connecting plate 3 (14) and the lower connecting plate (5) via a rod-shaped connecting member (16); the connecting plate 3 (14), the buffer plate (15) and the lower connecting plate (5) are all provided with mounting holes that cooperate with the connecting member (16).

8. The pile driving structure of a pile driver as claimed in claim 7, characterized in that: The buffer plate (15) is C-shaped, with its opening facing outwards.

9. The pile driving structure of a pile driver as claimed in claim 7, characterized in that: A plurality of protective plates (17) are fixedly connected to the lower side of the connecting plate three (14).

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