CN212405132U - Sealing mechanism of pile tip plugging device for offshore wind power large-diameter single-pile floating transportation - Google Patents
Sealing mechanism of pile tip plugging device for offshore wind power large-diameter single-pile floating transportation Download PDFInfo
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- CN212405132U CN212405132U CN202021233649.5U CN202021233649U CN212405132U CN 212405132 U CN212405132 U CN 212405132U CN 202021233649 U CN202021233649 U CN 202021233649U CN 212405132 U CN212405132 U CN 212405132U
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Abstract
The utility model discloses a sealing mechanism of marine wind-powered electricity generation major diameter single pile floating transportation stake point plugging device installs on the plugging device body and includes sealing washer clamping ring, a plurality of apron, a plurality of compression cylinder and rubber seal. The front end of the outer wall of the stopper body is provided with a front wedge-shaped hook head; the sealing ring pressing ring is slidably sleeved on the outer wall surface of the plugging device body, a plurality of windows are uniformly distributed on the wall surface of the sealing ring pressing ring, and a rear wedge-shaped hook head is arranged at the front end of the sealing ring pressing ring, so that a ring groove with an inverted trapezoidal cross section is formed by the front end surface of the rear wedge-shaped hook head, the rear end surface of the front wedge-shaped hook head and the outer wall surface of the plugging device body; the cover plates are correspondingly arranged in the windows one by one; the plurality of pressing oil cylinders and the plurality of windows are arranged on the inner wall of the plugging device body in a one-to-one correspondence manner, and the end heads of piston rods of the plurality of pressing oil cylinders are hinged on the hinge seats of the plurality of cover plates in a one-to-one correspondence manner; the rubber seal ring is arranged in the ring groove. The utility model discloses can improve sealed effect greatly.
Description
Technical Field
The utility model relates to a sealing mechanism of pile tip plugging device for offshore wind power large-diameter single-pile floating transportation.
Background
Offshore wind power generation has become an important new field for developing clean energy in China. The offshore wind turbine generator is becoming larger and larger, and the transportation cost and difficulty are higher and higher. The offshore wind power single pile foundation has the advantages that the diameter is generally more than 5 meters, the length is more than 60 meters, the weight is more than 500 tons, and the offshore wind power single pile foundation can be transported in a marine floating mode on the premise that two ends of a single pile are plugged according to the characteristics of large diameter, long length and heavy weight, so that the purposes of saving cost and improving transportation efficiency are achieved. At present, the single-pile plugging technology is to use a hydraulic drive plugging device to plug the two ends of a single pile. In the plugging technology, whether the plugging device can realize stable sealing with the single pile is the key for determining whether the single pile is successfully floated or not.
At present, the sealing of the plugging device for offshore wind power large-diameter single-pile floating transportation is realized by axially extruding a rubber sealing ring through a compression oil cylinder so as to deform the rubber sealing ring and fill a gap. The inner wall surface of the pile tip of the single pile is a smooth circumferential surface. Fig. 1a is a schematic view of the unsealed state of the mono pile 5, in which case there is a gap 6 between the mono pile 5 and the rubber sealing ring 4 mounted on the stopper. Fig. 1b is a schematic diagram of the sealing state of the single pile 5, the compression ring 3 is directly pushed by extending the piston rods of the plurality of compression oil cylinders 2 uniformly distributed on the circumference of the steel mechanism of the plugging device 1, the compression ring 3 axially transmits the pressure to the rubber sealing ring 4, the rubber sealing ring 4 is uniformly stressed to realize radial deformation, and thereby the rubber sealing ring 4 is tightly attached to the inner wall of the single pile 5 to realize sealing.
The main disadvantages of the sealing mechanism are as follows:
1. the rubber sealing ring for single-pile floating transportation plugging needs a larger deformation-filled gap, generally the unilateral gap is about 25mm, and the diameter and the thickness of the rubber sealing ring are larger, so that the pressure for generating deformation requirements meeting the sealing requirements is large; the rubber sealing ring is directly axially extruded by the compression oil cylinder, and the oil cylinder with higher pressure needs to be selected, so that the cost is high;
2. the rubber sealing ring is only subjected to axial compression force, when one compression oil cylinder fails, the rubber sealing ring is stressed unevenly, deformation is uneven, incomplete sealing is caused, and the sealing effect is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide a sealing mechanism of offshore wind power major diameter single pile for floating transportation stake point plugging device, it can improve rubber seal's compression homogeneity, improves sealed effect greatly.
The purpose of the utility model is realized like this: a sealing mechanism of a pile tip plugging device for offshore wind power large-diameter single-pile floating transportation is arranged on a plugging device body and comprises a sealing ring pressing ring, a plurality of cover plates, a plurality of pressing oil cylinders and rubber sealing rings; wherein the content of the first and second substances,
a plurality of axial waist-shaped through holes are uniformly distributed on the outer wall of the occluder body, and a front wedge-shaped hook head with an inclined rear end surface is arranged at the front end of the outer wall of the occluder body;
the sealing ring pressing ring is slidably sleeved on the outer wall surface of the occluder body, a plurality of windows which are in one-to-one correspondence with a plurality of kidney-shaped through holes in the occluder body are uniformly distributed on the wall surface of the sealing ring pressing ring, a rear wedge-shaped hook head with an inclined front end surface is arranged at the front end of the sealing ring pressing ring, the inclination and the length of the front end surface of the rear wedge-shaped hook head are the same as those of the rear end surface of the front wedge-shaped hook head in one-to-one correspondence, and an annular groove with an inverted trapezoidal cross section is formed by the front end surface of the rear wedge-shaped hook head, the rear end surface of the front wedge-shaped;
the cover plate comprises a bottom plate matched with the window in shape and a hinge seat fixed on the bottom plate; the cover plates are correspondingly arranged in the windows in a one-to-one mode in which the hinge seats face the inner part of the sealing ring pressing ring;
the end heads of piston rods of the plurality of pressing oil cylinders are hinged on the hinging seats of the plurality of cover plates in a one-to-one correspondence manner;
the cross section of the rubber sealing ring is in an isosceles trapezoid shape, the slopes and the lengths of the two side waists of the cross section of the rubber sealing ring are the same as those of the two side surfaces of the annular groove in a one-to-one correspondence manner, and the rubber sealing ring is arranged in the annular groove;
when the plugging device body drives the sealing mechanism to enter the pile tip inner cavity of the single pile together, the piston rod of the pressing oil cylinder is started to extend out simultaneously, the cover plate drives the sealing ring pressing ring to slide forwards on the outer peripheral surface of the plugging device body, the rubber sealing ring is extruded together through the front end inclined plane of the rear wedge-shaped hook head on the sealing ring pressing ring and the rear end inclined plane of the front wedge-shaped hook head on the plugging device body, the extruded rubber sealing ring is enabled to realize radial expansion deformation and radial movement, and sealing is further realized with the inner wall of the single pile.
According to the sealing mechanism of the pile tip plugging device for the offshore wind power large-diameter single-pile floating transportation, a window frame is mounted on each window on the sealing ring pressing ring, and a plurality of threaded holes are formed in the window frame at intervals; the bottom plate of the cover plate is matched with the window frame in shape, and a plurality of mounting holes which correspond to the threaded holes in the window frame one by one are formed in the edge of the bottom plate.
The utility model discloses a sealing mechanism of marine wind-powered electricity generation major diameter single pile for floating transportation stake point plugging device has following characteristics:
1) the pressing mechanism of the sealing ring pressing ring with the rear wedge-shaped hook head, which is pushed by the pressing oil cylinder, is adopted to be matched with the stopper body with the front wedge-shaped hook head, so that the rubber sealing ring can be extruded in a labor-saving manner, the optimization of a sealing structure is realized, and the manufacturing cost is saved;
2) through the front end inclined plane of the rear wedge-shaped hook head on the sealing ring pressing ring and the rear end inclined plane with the front wedge-shaped hook head on the plugging device body, the rubber sealing ring extruded axially can realize radial expansion deformation and radial movement, and the sealing effect of the plugging device is greatly improved.
3) The deformation of the rubber sealing ring on the circumference is more uniform.
Drawings
FIG. 1a is a state diagram of a sealing mechanism of a pile tip plugging device for offshore wind power large-diameter single-pile floating transportation in the prior art when the sealing mechanism is not sealed;
FIG. 1b is a state diagram of the sealing mechanism of the pile tip stopper for offshore wind power large-diameter single-pile floating transportation in the prior art during sealing;
fig. 2 is an axonometric view of the sealing mechanism of the offshore wind power large-diameter single-pile floating pile tip plugging device of the utility model;
FIG. 3 is a view taken along line A-A of FIG. 2;
fig. 4a is an isometric view of a sealing ring compression ring in the sealing mechanism of the present invention;
fig. 4b is an isometric view of a cover plate in the sealing mechanism of the present invention;
fig. 5a is a state diagram of the sealing mechanism of the offshore wind power large-diameter single-pile floating pile tip plugging device of the utility model when not sealed;
fig. 5b is a state diagram of the sealing mechanism of the pile tip plugging device for offshore wind power large-diameter single-pile floating transportation according to the present invention during sealing.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 2 to 5b, the sealing mechanism of the offshore wind power large-diameter single-pile floating pile tip plugging device of the present invention is installed on the plugging device body 10 and includes a sealing ring pressing ring 20, a plurality of cover plates 21, a plurality of pressing cylinders 30 and a rubber sealing ring 40; wherein the content of the first and second substances,
a plurality of axial waist-shaped through holes are uniformly distributed on the outer wall of the occluder body 10, and a front wedge-shaped hook head 100 with an inclined rear end surface is arranged at the front end of the outer wall of the occluder body 10;
the sealing ring pressing ring 20 is slidably sleeved on the outer wall surface of the stopper body 10, a plurality of windows 201 corresponding to a plurality of waist-shaped through holes in the outer wall of the stopper body 10 in a one-to-one manner are uniformly distributed on the wall surface of the sealing ring pressing ring 20, a window frame 202 is mounted on each window 201, and a plurality of threaded holes are formed in the surface of the window frame 202 at intervals; the front end of the sealing ring compression ring 20 is provided with a rear wedge-shaped hook head 200 with an inclined front end surface, and the inclination and the length of the front end surface of the rear wedge-shaped hook head 200 are the same as those of the rear end surface of the front wedge-shaped hook head 100 in a one-to-one correspondence manner, so that the front end surface of the rear wedge-shaped hook head 200, the rear end surface of the front wedge-shaped hook head 100 and the outer wall surface of the stopper body 10 form an annular groove with an inverted trapezoidal cross section;
the cover plate 21 includes a base plate 211 and a hinge base 213 fixed to the base plate 211; the bottom plate 211 is matched with the shape of the window frame 202 on the sealing ring pressing ring 20, and the edge of the bottom plate 211 is provided with a plurality of mounting holes 212 which are in one-to-one correspondence with a plurality of threaded holes on the window frame 202; the cover plates 21 are correspondingly arranged on the window frames 202 of the windows 201 on the sealing ring pressing ring 20 through a plurality of screws in a mode that the hinge seats 213 face the inside of the sealing ring pressing ring 20;
the plurality of pressing oil cylinders 30 are arranged on the inner wall of the stopper body 10 along the circumference of the inner wall of the stopper body 10 and in one-to-one correspondence with the plurality of windows 201 on the sealing ring pressing rings 20, and the end heads of the piston rods of the plurality of pressing oil cylinders 30 are hinged on the hinge seats 213 of the plurality of cover plates 21 in one-to-one correspondence;
the cross section of the rubber sealing ring 40 is isosceles trapezoid, and the rubber sealing ring 40 is arranged in a ring groove formed by the front end surface of the rear wedge-shaped hook head 200, the rear end surface of the front wedge-shaped hook head 100 and the outer wall surface of the stopper body 10; the inclination and length of the waist at both sides of the cross section of the rubber seal ring 40 are the same as those of the two sides of the ring groove in a one-to-one correspondence;
when the stopper body 10 with the sealing mechanism enters the pile tip inner cavity of the single pile 5, all the piston rods of all the pressing oil cylinders 30 are started to extend out simultaneously, all the cover plates 21 with the sealing ring pressing rings 20 slide forwards on the outer peripheral surface of the stopper body 10, the rubber sealing ring 40 is extruded together through the front end inclined plane of the rear wedge-shaped hook head 200 on the sealing ring pressing ring 20 and the rear end inclined plane of the front wedge-shaped hook head 100 on the stopper body 10, and the extruded rubber sealing ring 40 is radially expanded and deformed and moves radially, so that sealing is realized with the inner wall of the single pile 5.
The sealing mechanism of the pile tip plugging device for offshore wind power large-diameter single pile floating transportation adopts the pressing mechanism with the sealing ring pressing ring with the rear wedge-shaped hook head and is pushed by the pressing oil cylinder, and the rubber sealing ring can be extruded in a labor-saving manner by matching with the plugging device body with the front wedge-shaped hook head, so that the optimization of the sealing structure is realized, and the manufacturing cost is saved; the utility model discloses still through the front end inclined plane of the back wedge gib head on the sealing washer clamping ring and the rear end inclined plane of the preceding wedge gib head of area on the plugging device body, enable to realize radial expansion deformation and radial motion by axial extruded rubber seal to it is more even to make rubber seal warp on the circumference, improves the sealed effect of plugging device greatly.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (2)
1. A sealing mechanism of a pile tip plugging device for offshore wind power large-diameter single-pile floating transportation is arranged on a plugging device body and comprises a sealing ring pressing ring, a plurality of cover plates, a plurality of pressing oil cylinders and rubber sealing rings; it is characterized in that the preparation method is characterized in that,
a plurality of axial waist-shaped through holes are uniformly distributed on the outer wall of the occluder body, and a front wedge-shaped hook head with an inclined rear end surface is arranged at the front end of the outer wall of the occluder body;
the sealing ring pressing ring is slidably sleeved on the outer wall surface of the occluder body, a plurality of windows which are in one-to-one correspondence with a plurality of kidney-shaped through holes in the occluder body are uniformly distributed on the wall surface of the sealing ring pressing ring, a rear wedge-shaped hook head with an inclined front end surface is arranged at the front end of the sealing ring pressing ring, the inclination and the length of the front end surface of the rear wedge-shaped hook head are the same as those of the rear end surface of the front wedge-shaped hook head in one-to-one correspondence, and an annular groove with an inverted trapezoidal cross section is formed by the front end surface of the rear wedge-shaped hook head, the rear end surface of the front wedge-shaped;
the cover plate comprises a bottom plate matched with the window in shape and a hinge seat fixed on the bottom plate; the cover plates are correspondingly arranged in the windows in a one-to-one mode in which the hinge seats face the inner part of the sealing ring pressing ring;
the end heads of piston rods of the plurality of pressing oil cylinders are hinged on the hinging seats of the plurality of cover plates in a one-to-one correspondence manner;
the cross section of the rubber sealing ring is in an isosceles trapezoid shape, the slopes and the lengths of the two side waists of the cross section of the rubber sealing ring are the same as those of the two side surfaces of the annular groove in a one-to-one correspondence manner, and the rubber sealing ring is arranged in the annular groove;
when the plugging device body drives the sealing mechanism to enter the pile tip inner cavity of the single pile together, the piston rod of the pressing oil cylinder is started to extend out simultaneously, the cover plate drives the sealing ring pressing ring to slide forwards on the outer peripheral surface of the plugging device body, the rubber sealing ring is extruded together through the front end inclined plane of the rear wedge-shaped hook head on the sealing ring pressing ring and the rear end inclined plane of the front wedge-shaped hook head on the plugging device body, the extruded rubber sealing ring is enabled to realize radial expansion deformation and radial movement, and sealing is further realized with the inner wall of the single pile.
2. The sealing mechanism of the pile tip plugging device for the offshore wind power large-diameter single-pile floating transportation according to claim 1, wherein a window frame is mounted on each window on the sealing ring pressing ring, and a plurality of threaded holes are formed in the window frame at intervals; the bottom plate of the cover plate is matched with the window frame in shape, and a plurality of mounting holes which correspond to the threaded holes in the window frame one by one are formed in the edge of the bottom plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021233649.5U CN212405132U (en) | 2020-06-29 | 2020-06-29 | Sealing mechanism of pile tip plugging device for offshore wind power large-diameter single-pile floating transportation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021233649.5U CN212405132U (en) | 2020-06-29 | 2020-06-29 | Sealing mechanism of pile tip plugging device for offshore wind power large-diameter single-pile floating transportation |
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| CN212405132U true CN212405132U (en) | 2021-01-26 |
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| CN202021233649.5U Active CN212405132U (en) | 2020-06-29 | 2020-06-29 | Sealing mechanism of pile tip plugging device for offshore wind power large-diameter single-pile floating transportation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045831A (en) * | 2021-12-21 | 2022-02-15 | 中交第二航务工程局有限公司 | Novel device for underwater drawing steel pipe pile under space limited condition and construction method |
| CN117450204A (en) * | 2023-12-22 | 2024-01-26 | 江苏耐玛鑫精密机械有限公司 | Nitrogen spring sealing structure and working principle thereof |
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2020
- 2020-06-29 CN CN202021233649.5U patent/CN212405132U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045831A (en) * | 2021-12-21 | 2022-02-15 | 中交第二航务工程局有限公司 | Novel device for underwater drawing steel pipe pile under space limited condition and construction method |
| CN114045831B (en) * | 2021-12-21 | 2023-10-27 | 中交第二航务工程局有限公司 | Novel device for water drawing steel pipe pile under space limited condition and construction method |
| CN117450204A (en) * | 2023-12-22 | 2024-01-26 | 江苏耐玛鑫精密机械有限公司 | Nitrogen spring sealing structure and working principle thereof |
| CN117450204B (en) * | 2023-12-22 | 2024-03-08 | 江苏耐玛鑫精密机械有限公司 | Nitrogen spring sealing structure and working method thereof |
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