CN112814020A

CN112814020A - Connection structure of stake and changeover portion

Info

Publication number: CN112814020A
Application number: CN202110227387.4A
Authority: CN
Inventors: 丁盛; 洪全子; 黄键
Original assignee: Gloco Energy Technology Shanghai Co ltd
Current assignee: Gloco Energy Technology Shanghai Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-05-18

Abstract

The invention provides a connecting structure of a pile and a transition section, wherein the upper end of the pile is provided with a first sleeving part, the lower end of the transition section is provided with a second sleeving part, the sleeving surface of the first sleeving part is provided with a first inclined surface, the sleeving surface of the second sleeving part is provided with a second inclined surface, and the first inclined surface plays a supporting role on the second inclined surface. Because the weight effect of changeover portion and the upper portion function module of installing in the changeover portion upper end, the axial relative motion between changeover portion and the stake is restricted, in addition, the contact between first inclined plane and the second inclined plane can be inseparabler and tighter, and frictional force also constantly increases, has restricted the relative hoop motion between changeover portion and the stake to realize the stable connection of stake and changeover portion. Compared with the prior art, the connecting structure of the pile and the transition section does not need grouting or bolt connection operation, and the pile and the transition section can be connected together more conveniently.

Description

Connection structure of stake and changeover portion

Technical Field

The invention relates to the technical field of equipment installation, in particular to a connecting structure of a pile and a transition section.

Background

When the existing offshore fixed wind driven generator is installed, a pile is installed in place firstly, then a crane is used for hoisting the transition section, the transition section is slowly lowered until the lower end of the transition section is sleeved at the corresponding position of the top of the pile, and then grouting or bolt connection is carried out. Such a connection is complicated, time consuming, environmentally polluting and costly. In addition, once a structural safety problem occurs during operation, maintenance costs are enormous.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a connection structure for a pile and a transition section, which can connect the pile and the transition section together more conveniently.

In order to solve the technical problem, the invention provides a connection structure of a pile and a transition section, wherein a first sleeving part is arranged at the upper end of the pile, a second sleeving part is arranged at the lower end of the transition section, a first inclined surface is arranged on the sleeving surface of the first sleeving part, a second inclined surface is arranged on the sleeving surface of the second sleeving part, and the first inclined surface plays a supporting role on the second inclined surface.

Preferably, a first annular part is arranged on the socket surface of the first socket part, and the first inclined surface is positioned on the first annular part.

Further, the first annular member is made of a metal material, and the first annular member is welded to the nesting surface of the first nesting portion.

Preferably, a second annular part is arranged on the sleeve joint surface of the second sleeve joint part, and the second inclined surface is positioned on the second annular part.

Further, the second ring member is made of a metal material, and the second ring member is welded to the mating surface of the second mating portion.

Preferably, a sealing gasket is arranged between the sleeving surface of the first sleeving part and the sleeving surface of the second sleeving part.

As described above, the connection structure of the pile and the transition section of the present invention has the following beneficial effects:

by adopting the connection structure of the pile and the transition section, the transition section is hoisted, horizontally moved to the position above the pile and slowly lowered, the horizontal position of the transition section is continuously corrected, the transition section is ensured to be right above the pile until the first sleeving part and the second sleeving part are sleeved, and meanwhile, the first inclined plane and the second inclined plane are attached, so that the hoisting can be released. Compared with the prior art, the connecting structure of the pile and the transition section does not need grouting or bolt connection operation, and the pile and the transition section can be connected together more conveniently.

Drawings

FIG. 1 is a schematic view of a pile-transition section connection according to an embodiment of the present invention;

fig. 2 is a schematic view showing a connection structure of a pile and a transition section according to another embodiment of the present invention.

Description of the reference numerals

1 pile

2 first engaging part

201 first inclined plane

210 first ring member

220 third ring-shaped element

3 transition section

4 second socket joint part

401 second inclined plane

410 second annular member

420 fourth annular member

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1-2, the invention provides a connection structure of a pile and a transition section, wherein a first sleeving part 2 is arranged at the upper end of the pile 1, a second sleeving part 4 is arranged at the lower end of the transition section 3, a first inclined surface 201 is arranged on the sleeving surface of the first sleeving part 2, a second inclined surface 401 is arranged on the sleeving surface of the second sleeving part 4, and the first inclined surface 201 supports the second inclined surface 401.

By adopting the connection structure of the pile and the transition section, the transition section 3 is firstly hoisted, horizontally moved to the upper part of the pile 1 and slowly put down, meanwhile, the horizontal position of the transition section 3 is continuously corrected, the transition section 3 is ensured to be right above the pile 1 until the first sleeving part 2 and the second sleeving part 4 are sleeved, and the first inclined surface 201 and the second inclined surface 401 are jointed, so that the hoisting can be released, due to the weight effect of the transition piece 3 and the upper functional module mounted at the upper end of the transition piece 3, the axial relative movement between the transition piece 3 and the pile 1 is limited, in addition, still because the weight effect of changeover portion 3 and the upper portion function module of installing in changeover portion 3 upper end, the contact between first inclined plane 201 and second inclined plane 401 can be inseparabler and tighter, and frictional force also constantly increases, has restricted the relative annular motion between changeover portion 3 and stake 1 to realize stake 1 and the stable of changeover portion 3 and be connected. Compared with the prior art, the connecting structure of the pile and the transition section does not need grouting or bolt connection operation, and the pile 1 and the transition section 3 can be connected together more conveniently.

As a preferred embodiment, the socket surface of the first socket part 2 in this embodiment is provided with a first ring-shaped element 210, and the first inclined surface 201 is located on the first ring-shaped element 210. First loop forming element 210 can promote the compactness that first portion of cup jointing 2 and second portion of cup jointing 4 cup jointed for be difficult to appear the pine between first portion of cup jointing 2 and the second portion of cup jointing 4 and take off, promote the stability of being connected between stake 1 and the changeover portion 3.

Specifically, the first ring member 210 in this embodiment is made of a metal material, and the first ring member 210 is welded to the mating surface of the first mating portion 2. This makes the first ring 210 less likely to loosen and also makes the entire pile-to-transition connection easier to manufacture.

In a preferred embodiment, the second annular member 410 is disposed on the socket surface of the second socket portion 4, and the second inclined surface 401 is disposed on the second annular member 410. Likewise, the tightness of the socket connection of the first socket connection portion 2 and the second socket connection portion 4 can be improved by the second ring member 410, so that the first socket connection portion 2 and the second socket connection portion 4 are not easy to loosen, and the stability of the connection between the pile 1 and the transition section 3 is improved.

Specifically, the second annular member 410 in this embodiment is made of a metal material, and the second annular member 410 is welded to the mating surface of the second mating portion 4. This makes the second annular member 410 less likely to come loose and also makes the overall pile-to-transition section connection easier to manufacture.

As a preferred embodiment, a sealing gasket is disposed between the socket surface of the first socket part 2 and the socket surface of the second socket part 4 in this embodiment. Sealing washer can guarantee whole connection structure's leakproofness, prevents that sea water or rainwater from getting into the region between first grafting portion 2 and the second grafting portion 4 and arousing the corrosion.

Example one

As shown in fig. 1, the side wall of the first engaging portion 2 in this embodiment is inclined and is in a reduced shape; the side wall of the second sleeving part 4 is also obliquely arranged and is flared. Second box portion 4 cup joints on first box portion 2, and first loop forming element 210 welds the lower extreme at the lateral surface of first box portion 2, and second loop forming element 410 welds the lower extreme at the medial surface of second box portion 4, and first inclined plane 201 that is located on first loop forming element 210 is laminated with second inclined plane 401 that is located on second loop forming element 410 mutually. Specifically, in order to realize the stable socket joint of the first socket joint part 2 and the second socket joint part 4, the upper end of the outer side surface of the first socket joint part 2 in the embodiment is further provided with a third ring-shaped part 220, the upper end of the inner side surface of the second socket joint part 4 is further welded with a fourth ring-shaped part 420, and the third ring-shaped part 220 is attached to the fourth ring-shaped part 420. Specifically, for the convenience of installation, the abutting surfaces of the third ring member 220 and the fourth ring member 420 in this embodiment are vertical surfaces. The third ring member 220 in this embodiment is made of a rubber material, and the third ring member 220 functions as a sealing gasket, so that rainwater can be prevented from entering the region between the first and

second nesting portions

2 and 4 to cause rusting.

Example two

As shown in fig. 2, in the present embodiment, the inner diameter of the first sleeved portion 2 is larger than the outer diameter of the second sleeved portion 4, both the first sleeved portion 2 and the second sleeved portion 4 are cylindrical, and the first sleeved portion 2 is sleeved on the second sleeved portion 4. The first ring-shaped member 210 is welded at the lower end of the inner side surface of the first sleeving part 2, the second inclined surface 401 is positioned at the lower end of the outer side surface of the second sleeving part 4, and the second inclined surface 401 is attached to the first inclined surface 201 positioned on the first ring-shaped member 210. Specifically, in order to realize the stable cup joint of first portion of cup jointing 2 and second portion of cup jointing 4, the upper end of the lateral surface of second portion of cup jointing 4 in this embodiment still is equipped with fourth loop spare 420, and fourth loop spare 420 is laminated mutually with the upper end of the medial surface of first portion of cup jointing 2. Specifically, for the convenience of installation, the abutting surfaces of the fourth ring-shaped member 420 and the first sleeving part 2 in this embodiment are vertical surfaces. The fourth ring 420 in this embodiment is made of a rubber material, and the fourth ring 420 functions as a sealing gasket, so that rainwater can be prevented from entering the area between the first and second

sleeving parts

2 and 4 to cause rusting.

In the prior art, the installation process of grouting or bolt connection is complex and long in time consumption, and the corresponding installation cost is high. In addition, when structural damage occurs during operation in grouting or bolting and repair is required, repair of the joint is very complicated. In contrast, the present invention: 1) only hoisting is needed, and the installation time is short; 2) limiting the relative displacement between the transition section 3 and the pile 1 by using the self weights of the transition section 3 and the upper functional module; 3) and the connection performance is continuously increased along with time within a period of time after the installation is finished, and the friction force between corresponding contact surfaces is also increased; 4) from the design point of view, the materials used by the invention are all steel materials, and are safer and more stable than grouting and bolts, so that the maintenance is not needed during the operation. The invention has the advantages of simple structure, quick installation, good connection performance and no need of operation and maintenance, and can be applied to the connection of the pile 1 and the transition section 3 of the offshore fixed wind driven generator and the fixed offshore platform.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A connection structure of stake and changeover portion which characterized in that: the upper end of stake is equipped with first cup jointing portion, the lower extreme of changeover portion is equipped with second cup jointing portion, be equipped with first inclined plane on the cup jointing face of first cup jointing portion, be equipped with the second inclined plane on the cup jointing face of second cup jointing portion, first inclined plane plays the supporting role to the second inclined plane.

2. A pile and transition section connection according to claim 1, wherein: the first annular piece is arranged on the sleeve joint face of the first sleeve joint portion, and the first inclined face is located on the first annular piece.

3. A pile and transition section connection according to claim 2, wherein: the first annular piece is made of a metal material and is welded on the sleeving surface of the first sleeving part.

4. A pile and transition section connection according to claim 1 or 2, wherein: and a second annular part is arranged on the sleeve joint surface of the second sleeve joint part, and the second inclined surface is positioned on the second annular part.

5. A pile and transition section connection according to claim 4, wherein: the second annular member is made of a metal material and is welded to the sleeving surface of the second sleeving part.

6. A pile and transition section connection according to claim 1, wherein: and a sealing gasket is arranged between the sleeve joint surface of the first sleeve joint part and the sleeve joint surface of the second sleeve joint part.