A movable gantry of a pile driving vessel

Abstract

The present invention relates to a movable dragon's mouth of a pile frame of a pile driving vessel, which comprises a support structure, a fixed dragon's mouth and a movable dragon's mouth; the support structure is fixed on the hull, the fixed dragon's mouth is fixed on the support structure, and a vertical upper dragon's mouth slideway is arranged thereon; the movable dragon's mouth is rotatably connected to the bottom of the fixed dragon's mouth, and a lower dragon's mouth slideway is arranged thereon. The movable dragon's mouth is spliced and fixed with the fixed dragon's mouth in the vertical position, so that the upper dragon's mouth slideway and the lower dragon's mouth slideway are spliced into a complete dragon's mouth slideway; the lower end of the upper dragon's mouth slideway is the insertion starting part of the pile driving hammer guide claw, and the distance from the lower end of the upper dragon's mouth slideway to the water surface is greater than the height of the pile driving hammer. When the hammer is sleeved for operation, the bolts between the fixed dragon's mouth and the docking ear plate are loosened, and the movable dragon's mouth is rotated by a certain angle around the hinge bolt to leave space for the hammer sleeving operation, and the pile driving hammer guide claw is sleeved on the fixed dragon's mouth slideway.

Description

Technical Field

[0001] The present invention relates to a pile driving vessel, and more particularly to a movable dragon's mouth of the pile frame of a pile driving vessel, belonging to the technical field of pile driving vessels. Background Art

[0002] The dragon's mouth is arranged on the pile frame of the pile driving vessel and serves as a slideway for the pile driving hammer to move vertically up and down along the pile frame, playing a guiding and limiting role for the pile driving hammer. Generally, it extends from the top of the pile frame to the operating water line or even below the operating water line. When changing the hammer on the pile frame, the pile driving hammer generally slips into the dragon's mouth slideway from the lower end of the dragon's mouth, as Figure 1-2 shown.

[0003] In the state where the pile frame is upright, the lower end of the dragon's mouth is below the water line. It is necessary to first tilt the pile frame to a certain angle to make the lower end of the dragon's mouth a certain distance above the water surface to prevent the pile driving hammer from contacting the water surface during the process of slipping into the dragon's mouth, as Figure 3 shown. This installation method requires the pile frame to be tilted at a certain angle, the dragon's mouth slideway is in an inclined state, and the pile driving hammer also needs to be tilted at a certain angle when slipping into the slideway, making pile hanging and installation difficult. Moreover, the luffing operation of the pile frame is required, resulting in low operating efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that for the existing dragon's mouth structure and hammer slipping method of the pile driving vessel, it is necessary to tilt the pile frame at a certain angle to make the lower end of the dragon's mouth a certain distance above the water surface, and the dragon's mouth slideway is also in an inclined state. The pile driving hammer also needs to be tilted at a certain angle when slipping into the slideway, increasing the hoisting difficulty of the pile driving hammer. In this inclined state, it is also relatively difficult to dock the guiding claws of the pile driving hammer with the dragon's mouth slideway. Moreover, the luffing operation of the pile frame is required, increasing the additional operation time. Therefore, the entire hammer slipping is extremely inconvenient, with long operation time and low efficiency.

[0005] The present invention relates to a movable dragon's mouth of the pile frame of a pile driving vessel. A certain range at the lower part of the dragon's mouth is designed as a movable end. During the hammer changing operation, the movable end is rotated by a certain angle to make room for the pile driving hammer to slip into the fixed dragon's mouth slideway. Therefore, during the hammer slipping operation, it is not necessary to tilt the pile frame at a certain angle, and the pile driving hammer can smoothly slip into the dragon's mouth slideway in the vertical direction, with simple and efficient operation.

[0006] The present invention adopts the following technical solutions:

[0007] A movable dragon's mouth of a pile driver includes a support structure 1, a fixed dragon's mouth 5, and a movable dragon's mouth 4. The support structure 1 is fixed to the hull, the fixed dragon's mouth 5 is fixed to the support structure 1, and has a vertical upper dragon's mouth slideway thereon. The movable dragon's mouth 4 is rotatably connected to the bottom of the fixed dragon's mouth 5 and has a lower dragon's mouth slideway thereon. The movable dragon's mouth 4 is spliced and fixed with the fixed dragon's mouth 5 in the vertical position, so that the upper dragon's mouth slideway and the lower dragon's mouth slideway are spliced into a complete dragon's mouth slideway. The lower end of the upper dragon's mouth slideway is the insertion starting part of the pile hammer guide claw 9, and the distance from the lower end of the upper dragon's mouth slideway to the water surface is greater than the height of the pile hammer 6.

[0008] Preferably, the support structure 1 and the fixed dragon's mouth 5 are fixed side by side. A pair of hinge ear plates 8 are provided on the upper part of the movable dragon's mouth 4, and the hinge ear plates 8 are hinged to the support structure 1 through hinge parts. A pair of connecting ear plates 7 are provided on the upper part of the movable dragon's mouth, and the connecting ear plates 7 can be connected and fixed to the fixed dragon's mouth 5 through fasteners.

[0009] Further, the fasteners are fixing bolts 3 and fixing nuts 3'.

[0010] Further, the hinge parts are hinge bolts 2 and hinge nuts 2'.

[0011] Preferably, it further includes a pile frame, and the support structure 1 is fixed on the pile frame.

[0012] Preferably, the support structure 1, the fixed dragon's mouth 5, and the movable dragon's mouth 4 are arranged at the bow part of the ship.

[0013] The beneficial effect of the present invention is that the pile hammer can be integrally sleeved into the slideway of the fixed dragon's mouth from bottom to top in the vertical direction, then the movable dragon's mouth is lowered and locked, and then the pile hammer is sleeved into the slideway of the movable dragon's mouth downward. Therefore, when replacing the pile hammer, it is not necessary to tilt the pile frame at a certain angle, and it can be smoothly sleeved into the dragon's mouth slideway, and the operation is simple and efficient. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the dragon's mouth slideway and the pile hammer guide claw in the prior art.

[0015] Figure 2 It is a schematic diagram of the lower end of the dragon's mouth being below the water surface when the pile frame is in the upright state in the prior art.

[0016] Figure 3 It is a schematic diagram of the pile sleeving operation when the pile frame is in the inclined state in the prior art.

[0017] Figure 4 It is a schematic diagram of the movable dragon's mouth of the pile driver of the present invention.

[0018] Figure 5It is a schematic diagram of the composition of the movable dragon's mouth, where a is the front view and b is the sectional view in the direction of the arrow in Figure a.

[0019] Figure 6 It is the working principle diagram of the pile frame movable dragon's mouth of the present invention.

[0020] In the figure, 1. Support structure, 2. Hinge bolt, 2'. Hinge nut, 3. Fixing bolt, 3'. Fixing nut, 4. Movable dragon's mouth, 5. Fixed dragon's mouth, 6. Pile hammer, 7. Connecting ear plate, 8. Hinge ear plate, 9. Guide claw of pile hammer, 10. Slideway of dragon's mouth. Specific implementation mode

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1 (comparative embodiment):

[0023] As Figure 1 shown, there is a pair of slideways at the front end of the dragon's mouth structure, and there is a pair of guide claws on the pile hammer. The guide claws of the pile hammer are sleeved on the slideway of the dragon's mouth, and the pile hammer can slide up and down along the slideway of the dragon's mouth.

[0024] During the operation of changing the pile hammer of the pile frame, the pile hammer generally enters the slideway of the dragon's mouth from the lower end of the dragon's mouth. In the upright state of the pile frame, the lower end of the dragon's mouth is below the water line. It is necessary to first tilt the pile frame to a certain angle so that the lower end of the dragon's mouth is a certain distance above the water surface to prevent the pile hammer from contacting the water surface during the process of entering the dragon's mouth. As Figure 2 、 3 shown.

[0025] It can be seen that for the existing dragon's mouth structure and the method of sleeving the pile hammer, it is necessary to tilt the pile frame by a certain angle to make the lower end of the dragon's mouth a certain distance above the water surface, and the slideway of the dragon's mouth is also in an inclined state. The pile hammer also needs to be tilted by a certain angle when entering the slideway, which increases the lifting difficulty of the pile hammer. In this inclined state, it is also difficult to dock the guide claws of the pile hammer with the slideway of the dragon's mouth. Moreover, it is necessary to operate the luffing of the pile frame, which increases the additional operation time. Therefore, the whole process of sleeving the pile hammer is extremely inconvenient, the operation takes a long time, and the efficiency is low.

[0026] Embodiment 2:

[0027] For the movable dragon's mouth of this embodiment, a certain range of the lower end of the dragon's mouth is used as the movable end. The movable dragon's mouth is hinged to the support structure through bolts, and the movable dragon's mouth can rotate around the hinge bolt. The movable dragon's mouth and the fixed dragon's mouth are fixed by bolts at the docking position to prevent the movable dragon's mouth from rotating. As Figure 4As shown. At the hinge joint between the movable spout and the support structure, hinge ear plates are provided. The ear plates are welded to the movable spout, and bolt holes are drilled in the support structure. The hinge ear plates are hinged to the support structure with bolts and nuts. At the docking joint between the movable spout and the fixed spout, docking ear plates are provided. The docking ear plates are welded to the movable spout, and bolt holes are drilled in the side plates of the fixed spout. The hinge ear plates are connected to the fixed spout with bolts and nuts. The structural composition is as Figure 5 shown.

[0028] See Figure 4-6 , a movable spout of a pile frame of a pile driving vessel, comprising a support structure 1, a fixed spout 5, and a movable spout 4; the support structure 1 is fixed on the hull, the fixed spout 5 is fixed on the support structure 1 and has a vertical upper spout slideway thereon; the movable spout 4 is rotatably connected to the bottom of the fixed spout 5 and has a lower spout slideway thereon. The movable spout 4 is spliced and fixed with the fixed spout 5 in the vertical position, so that the upper spout slideway and the lower spout slideway are spliced into a complete spout slideway; the lower end of the upper spout slideway is the insertion starting part of the pile driving hammer guide claw 9, and the distance from the lower end of the upper spout slideway to the water surface is greater than the height of the pile driving hammer 6.

[0029] See Figure 4 , the support structure 1 and the fixed spout 5 are fixedly arranged side by side; a pair of hinge ear plates 8 are provided on the upper part of the movable spout 4, and the hinge ear plates 8 are hinged to the support structure 1 through hinge members; a pair of connecting ear plates 7 are provided on the upper part of the movable spout, and the connecting ear plates 7 can be fixedly connected to the fixed spout 5 through fasteners. The fasteners are fixing bolts 3 and fixing nuts 3'. The hinge members are hinge bolts 2 and hinge nuts 2'.

[0030] See Figure 6 , and further comprises a support structure 1, a fixed spout 5, and a movable spout 4 arranged at the bow part of the ship.

[0031] The working principle of this movable spout is as follows:

[0032] When the hammer is sleeved, loosen the bolts between the fixed spout and the docking ear plates, rotate the movable spout around the hinge bolts by a certain angle to leave space for the hammer sleeving operation, and sleeve the pile driving hammer guide claw on the fixed spout slideway. As Figure 6 shown. When the pile driving hammer is installed, it can be integrally sleeved into the slideway of the fixed spout from bottom to top in the vertical direction, then the movable spout is lowered and locked straight, and then the pile driving hammer is sleeved into the slideway of the movable spout downward.

[0033] For the movable spout of the present invention, when the pile frame and the fixed spout are kept vertical, the pile driving hammer can be smoothly sleeved on the spout slideway. Since the fixed spout is in a vertical state, during the hammer sleeving process, the pile driving hammer is also in a vertical state, which is convenient for hoisting operation. The guide claw of the pile driving hammer is simple and convenient to dock with the spout slideway, effectively improving the operation efficiency.

[0034] The key point of this embodiment is that the lower movable gantry is connected to the supporting structure through a hinged type. When the hammer is working, the lower movable gantry rotates a certain angle to leave a working space. When the pile driving operation is normal, the movable gantry is connected to the fixed gantry through the docking ear plate to ensure the continuity of the gantry slideway.

[0035] Compared with the prior art, the present invention does not require the pile frame to be tilted at a certain angle when replacing the pile hammer, and the pile hammer can be smoothly inserted into the longkou slideway in the vertical direction, so the operation is simple and efficient.

[0036] It should be noted that the connection between the movable faucet of the device and the supporting structure can adopt other forms of hinged connection, such as pin connection, and the number and position of the hinged ear plates and the docking ear plates can be adjusted.

Claims

1. An active dragon's mouth of a pile driver frame on a pile driving vessel, Characterized in that: It includes a support structure (1), a fixed dragon's mouth (5), and an active dragon's mouth (4); The support structure (1) is fixed on the hull, the fixed dragon's mouth (5) is fixed on the support structure (1), and it has a vertical upper dragon's mouth slideway thereon; The active dragon's mouth (4) is rotatably connected to the bottom of the fixed dragon's mouth (5), and it has a lower dragon's mouth slideway thereon. The active dragon's mouth (4) is spliced and fixed with the fixed dragon's mouth (5) in the vertical position, so that the upper dragon's mouth slideway and the lower dragon's mouth slideway are spliced into a complete dragon's mouth slideway; the lower end of the upper dragon's mouth slideway is the insertion starting part of the pile hammer guide claw (9), and the distance from the lower end of the upper dragon's mouth slideway to the water surface is greater than the height of the pile hammer (6); The support structure (1) and the fixed dragon's mouth (5) are fixedly arranged side by side; A pair of hinge ear plates (8) are provided on the upper part of the active dragon's mouth (4), and the hinge ear plates (8) are hinged to the support structure (1) through hinge parts; A pair of connecting ear plates (7) are provided on the upper part of the active dragon's mouth, and the connecting ear plates (7) can be connected and fixed to the fixed dragon's mouth (5) through fasteners; It further includes a pile driver frame, and the support structure (1) is fixed on the pile driver frame.

2. The active dragon's mouth of the pile driver frame on a pile driving vessel according to claim 1, Characterized in that: The fasteners are fixing bolts (3) and fixing nuts (3').

3. The active dragon's mouth of the pile driver frame on a pile driving vessel according to claim 1, Characterized in that: The hinge parts are hinge bolts (2) and hinge nuts (2').

4. The active dragon's mouth of the pile driver frame on a pile driving vessel according to claim 1, Characterized in that: It further includes that the support structure (1), the fixed dragon's mouth (5), and the active dragon's mouth (4) are arranged at the bow part of the ship.

Images