CN219118155U

CN219118155U - Offshore wind power pile driving and driving device

Info

Publication number: CN219118155U
Application number: CN202223523180.0U
Authority: CN
Inventors: 郑为; 王斌财; 刘伟; 沈锋
Original assignee: Ztt Marine Engineering Co ltd
Current assignee: Ztt Marine Engineering Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-02
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses an offshore wind power pile driving and driving device, relates to the technical field of wind power installation, and solves the problems that in the prior art, the pile driving device is required to be fixed on a steel pipe pile through bolts, the installation process is complex, the driving is easy to deviate due to shaking of a ship body under the action of wave fluctuation in the driving process, the driving effect is not ideal and the like. The pile driving hammer comprises a plug section and a reducing section, wherein the plug section is arranged at the lower part of the plug section, the plug section is inserted into a flange at the top of a steel pipe pile, the lower part of the reducing section is abutted against the upper side of the flange at the top of the steel pipe pile, and the upper part of the reducing section is matched with a hammer cap of the pile driving hammer; the lower part of the plug section is connected with a conical first guide head which is big in upper part and small in lower part, and guides the pile feeder to enter the steel pipe pile; the top of the reducing section is connected with a conical second guide head, the second guide head is small in upper part and large in lower part, and a guide pile hammer cap is sleeved on the upper part of the reducing section. The pile driver is convenient to position and install on the steel pipe pile, and simultaneously the pile driver is convenient to pile the top of the pile driver by the hammer cap of the pile driver, so that the working efficiency is improved.

Description

Offshore wind power pile driving and driving device

Technical Field

The utility model relates to the technical field of wind power installation, in particular to an offshore wind power pile driving and delivering device.

Background

With the development of offshore wind power technology, the diameter of a steel pipe pile for a fan foundation is larger and larger, a required pile driving hammer is larger and larger, the pile driving hammer is difficult to drive a steel pipe pile with larger diameter due to the limitation of the size of a hammer cap, and in the prior art, as shown in fig. 1, the pile driving hammer is often matched with a pile driver to realize diameter changing, namely, a structure with a small upper part and a large lower part is used for matching with a large-diameter steel pipe pile below and a small-diameter pile driving hammer cap above;

however, although the above-mentioned structure is comparatively simple, but it needs to fix the pile follower on the steel-pipe pile through the bolt, and the installation is comparatively complicated, because the hull rocks under the wave fluctuation effect in the pile driving process, the pile is skew easily, and the pile effect is not ideal.

Disclosure of Invention

The utility model aims to provide an offshore wind power pile driver, which can be conveniently positioned and installed on a steel pipe pile, and simultaneously is convenient for piling work of a pile hammer cap on the top of the pile driver, so that the working efficiency is improved.

The technical aim of the utility model is realized by the following technical scheme:

the offshore wind power pile driving and delivering device comprises a plug section and a reducing section, wherein the plug section is arranged at the lower part of the plug section, the plug section is inserted into a flange at the top of a steel pipe pile, the lower part of the reducing section is abutted against the upper side of the flange at the top of the steel pipe pile, and the upper part of the reducing section is matched with a pile hammer cap;

the lower part of the plug section is connected with a conical first guide head, the upper part of the first guide head is big and small, and the guide pile feeder enters the steel pipe pile; the top of the reducing section is connected with a conical second guide head, the second guide head is small in upper part and large in lower part, and a guide pile hammer cap is sleeved on the upper part of the reducing section.

Further, the second guide head is connected to the inner side of the reducing section in a sliding manner up and down.

Further, the inner side of the reducing section is connected with a sliding rail for the second guide head to slide up and down.

Further, an elastic piece for pushing the second guide head upwards is arranged on the inner side of the reducing section.

Still further, the elastic member includes a buffer cylinder, and one end of the buffer cylinder is connected to the second guide head.

Further, the outer peripheral surfaces of the first guide head and/or the second guide head are connected with a plurality of rolling elements which are distributed up and down.

Still further, the rolling member includes rollers embedded in the outer peripheral surfaces of the first guide head and/or the second guide head.

Still further, the rolling member includes a rolling belt coupled in the outer circumferential surface of the first guide head and/or the second guide head.

Further, the rolling belt comprises a frame body, the cross section of the frame body is U-shaped, a plurality of rolling rollers are installed in the frame body, and a belt is sleeved on the peripheries of all the rolling rollers.

Further, the frame body is fixed on the periphery of the first guide head or the second guide head through bolts at two ends.

In summary, the utility model has the following beneficial effects:

the pile feeder is guided to enter the flange at the top of the steel pipe pile through the first guide head, screw fixation is not needed, and the installation is convenient; the second guide head is used for guiding the piling hammer to work on the pile driver, and the second guide head can retract through the arrangement of the elastic piece, so that the stress of the second guide head part during piling is reduced.

Drawings

FIG. 1 is a schematic diagram of a structure of the background art;

FIG. 2 is a schematic view of the overall structure of the present utility model;

FIG. 3 is a schematic view of a first embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure, 1, a plug section; 2. a reducing section; 21. a sliding rail; 3. a first guide head; 31. a roller; 32. a rolling belt; 4. a second guide head; 5. an elastic member.

Detailed Description

The following description of the embodiments of the utility model is further illustrated in the accompanying drawings, and the examples are not meant to limit the utility model.

Embodiment one:

an offshore wind power piling and pile driver, as shown in fig. 2, comprises a lower plug section 1 and an upper reducing section 2; the plug section 1 is inserted into the top flange of the steel pipe pile, the lower part of the reducing section 2 is abutted against the upper side of the top flange of the steel pipe pile, the upper part is matched with the hammer cap of the pile hammer,

in this embodiment, plug section 1 passes through the bolt fastening in reducing section 2 downside, and reducing section 2 lower part is cylindric, and the external diameter is the same with steel-pipe pile top flange external diameter, and upper portion is cylindric, and the external diameter is not greater than pile hammer cap internal diameter, and the middle part is the toper, and the major diameter transition of below is the minor diameter of top for pile hammer can pile work to the steel-pipe pile of major diameter, welds the lug at reducing section 2 middle part or lower part symmetry and conveniently hoists, in order to hoist and mount pile follower at steel-pipe pile top.

As shown in fig. 2, the outer diameter of the plug section 1 is equal to the inner diameter of a flange at the top of the steel pipe pile, the lower part of the plug section 1 is integrally connected with a conical first guide head 3, and the first guide head 3 is large in upper part and small in lower part so as to guide the pile feeder to be inserted into the top of the steel pipe pile;

the top of the reducing section 2 is connected with a conical second guide head 4, the second guide head 4 is small in upper part and large in lower part, and a guide pile hammer cap is sleeved on the upper part of the reducing section 2.

As shown in fig. 2, in order to reduce the stress of the second guide head 4 during piling, the second guide head 4 is connected to the inner side of the reducing section 2 in a vertically sliding manner, and the inner side of the reducing section 2 is connected with a sliding rail 21 for the second guide head 4 to slide up and down, wherein the sliding rail 21 can be a symmetrically arranged sliding groove, and the periphery of the bottom of the second guide head 4 slides along the sliding groove through rollers or balls; the sliding rail 21 can also be a drawing type sliding rail which is respectively fixed with the inner side of the variable-diameter section 2 and the second guide head 4;

limiting blocks are fixed at two ends of the sliding rail 21, and two ends of a sliding path of the second guide head 4 are limited to be a piling working position which is completely retracted into the reducing section 2, and a guiding working position where the outer diameter is maximum is overlapped with the top of the reducing section 2.

As shown in fig. 2, in order to reset the second guide head 4 after piling, an elastic piece 5 for pushing the second guide head 4 upwards is arranged on the inner side of the reducing section 2, and the elastic piece 5 can adopt a buffer cylinder to achieve a buffering effect, one end of the buffer cylinder is connected to the second guide head 4, the other end of the buffer cylinder is fixed at the bottom of the reducing section 2, and the buffer effect is reset and improved through compressed air; the second guide head 4 can be reset upwards by a plurality of telescopic rods and springs which fixedly push the small rods to extend out of the large rods of the telescopic rods.

As shown in fig. 3, the outer peripheral surfaces of the first guide head 3 and/or the second guide head 4 are connected with a plurality of rolling elements which are distributed up and down so as to change the contact between the pile driver and the steel pipe pile and/or the pile hammer cap in the guide process from sliding to rolling;

in this embodiment, the rolling member includes the roller 31 of inlaying in locating first direction head 3 and second direction head 4 outer peripheral face, and roller 31 is equipped with a plurality of groups along circumference, and every group distributes in proper order along the generating line direction, provides better guiding effect and reduces the atress.

Embodiment two:

the present embodiment is substantially the same as the first embodiment in that:

as shown in fig. 4, the rolling element comprises rolling belts 32 connected to the outer peripheral surfaces of the first guide head 3 and the second guide head 4, a plurality of rolling belts 32 are arranged along the axial direction, each rolling belt 32 is fixed on the outer periphery of the first guide head 3 or the second guide head 4 along the direction of a bus (a plurality of rolling belts 32 can be sequentially fixed along the direction of the bus to improve the guide effect and reduce the replacement cost);

the rolling belt 32 comprises a frame body, the cross section of the frame body is U-shaped, a plurality of rolling rollers are mounted in the frame body, a belt is sleeved on the peripheries of all the rolling rollers, the whole rolling belt 32 is modularized, the whole rolling belt is fixed on the peripheries of the first guide head 3 or the second guide head 4 through bolts at two ends, and mounting grooves are formed in the peripheral arrays of the first guide head 3 and the second guide head 4, so that the rolling belt 32 can be mounted conveniently.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the utility model, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present utility model.

Claims

1. An offshore wind power pile driving and driving device is characterized in that: the pile driving hammer comprises a plug section and a reducing section, wherein the plug section is arranged at the lower part of the plug section, the plug section is inserted into a flange at the top of a steel pipe pile, the lower part of the reducing section is abutted against the upper side of the flange at the top of the steel pipe pile, and the upper part of the reducing section is matched with a hammer cap of the pile driving hammer;

2. An offshore wind pile driver according to claim 1, wherein: the second guide head is connected to the inner side of the reducing section in a vertical sliding mode.

3. An offshore wind pile driver according to claim 2, wherein: the inner side of the reducing section is connected with a sliding rail for the second guide head to slide up and down.

4. An offshore wind power pile driver according to claim 1 or 2, characterised in that: an elastic piece for pushing the second guide head upwards is arranged on the inner side of the reducing section.

5. An offshore wind pile driver according to claim 4, wherein: the elastic piece comprises a buffer cylinder, and one end of the buffer cylinder is connected to the second guide head.

6. An offshore wind pile driver according to claim 1, wherein: the outer peripheral surfaces of the first guide head and/or the second guide head are connected with a plurality of rolling elements which are distributed up and down.

7. An offshore wind pile driver according to claim 6, wherein: the rolling element comprises rollers embedded in the outer peripheral surfaces of the first guide head and/or the second guide head.

8. An offshore wind pile driver according to claim 6, wherein: the rolling element comprises a rolling belt connected in the outer peripheral surface of the first guide head and/or the second guide head.

9. An offshore wind pile driver according to claim 8, wherein: the rolling belt comprises a frame body, the cross section of the frame body is U-shaped, a plurality of rolling rollers are installed in the frame body, and a belt is sleeved on the peripheries of all the rolling rollers.

10. An offshore wind pile driver according to claim 9, wherein: the frame body is fixed on the periphery of the first guide head or the second guide head through bolts at two ends.