CN219490905U - Hexagonal gear rack lifting device for cylindrical pile leg type platform - Google Patents
Hexagonal gear rack lifting device for cylindrical pile leg type platform Download PDFInfo
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- CN219490905U CN219490905U CN202320114655.6U CN202320114655U CN219490905U CN 219490905 U CN219490905 U CN 219490905U CN 202320114655 U CN202320114655 U CN 202320114655U CN 219490905 U CN219490905 U CN 219490905U
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Abstract
The utility model discloses a hexagonal gear rack lifting device of a cylindrical pile leg type platform, which comprises a gear system, a rack and a lifting frame, wherein six groups of gear systems, the rack and the lifting frame are all arranged; six groups of racks are arranged on the side surfaces of the cylindrical pile legs; the six groups of gear systems are arranged at the outer side positions of the cylindrical pile legs in a hexagonal shape; the gear system is connected with the corresponding racks through the lifting system to form meshing. The utility model aims to overcome the defects of high manufacturing cost, short service life and larger influence on the use space of the traditional lifting device in the prior art.
Description
Technical Field
The utility model relates to the technology of ocean engineering platforms, in particular to a hexagonal gear rack lifting device of a cylindrical spud leg type platform.
Background
The jack-up platform is necessary equipment for realizing ocean resource development, such as a jack-up drilling platform for exploiting oil and gas, a jack-up construction platform for installing offshore wind power equipment and a special jack-up accommodation platform.
The lifting device of the cylindrical pile leg self-lifting platform is mainly used for lifting a ship body or pile legs, pre-loading the pile legs and supporting the ship body under working conditions of working or storm and other standing states.
As shown in fig. 1 and 2, the conventional lifting device 2 is disposed on the cylindrical leg 1 at both sides of the cylindrical leg 1, and as the weight of the hull and the environmental load increase, the capacity of the lifting device 2 needs to be increased. The lifting device 2 comprises a gear system 21, a rack 22 and a lifting frame 23, wherein the lifting frame 23 is arranged on the cylindrical pile leg 1 through the rack 22, and meanwhile, the lifting frame 23 is connected with the gear system 21 to play a supporting role. The conventional lifting device 2 has only two sets of gear systems 21 and two sets of racks 22.
The rack 22 is connected with the cylindrical spud leg 1, but the meshing direction of the gear system 21 and the rack 22 is consistent with the direction of the coordinate X. Assuming that a cylindrical leg 1 requires 12 sets of gear systems 21 to carry, the conventional arrangement requires 6 rows of gear systems 21. However, in this case, the lifting frame 23 is excessively high due to the large number of rows, and the gear system 21 and the rack 22 are extremely unevenly loaded due to the structural rigidity. Obviously, with the conventional lifting device 2, if the number of rows of the gear system 21 is excessive, the uneven load is caused, and the uneven load is increased with the increase of the number of rows of the gear system 21, which results in a reduction in the utilization rate of the gear load.
In general, the conventional lifting device 2 adopts two approaches to solve: firstly, the number of the lifting devices 2 is increased, which means that the number and the row number of the gear systems 21 are increased, the height of the lifting devices 2 is increased by the traditional arrangement mode, so that the uneven stress of the gear systems 21 is increased, and the due effect is not achieved even if the number of the gear systems 21 is increased; and secondly, the capacity of a single lifting device 2 is increased, which tends to cause the great improvement of the manufacturing cost and the reduction of the service life.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide the hexagonal rack and pinion lifting device for the cylindrical spud leg platform, which aims to overcome the defects that the traditional lifting device in the prior art is high in manufacturing cost and short in service life and has great influence on the use space.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hexagonal gear rack lifting device of a cylindrical pile leg type platform comprises a gear system, a rack and a lifting frame;
six groups of the gear system, the racks and the lifting frame are all arranged;
six groups of racks are arranged on the side surfaces of the cylindrical pile legs;
the six groups of gear systems are arranged at the outer side positions of the cylindrical pile legs in a hexagonal shape;
the gear system is connected with the corresponding racks through the lifting system to form meshing.
Preferably, an included angle between a central line of the first group of gear systems and a horizontal line of the cylindrical pile leg is 0 degree;
the included angle between the central line of the second group of gear systems and the horizontal line of the cylindrical pile leg is 60 degrees;
the included angle between the central line of the third group of gear systems and the horizontal line of the cylindrical pile leg is 120 degrees;
the included angle between the center line of the fourth group of gear systems and the horizontal line of the cylindrical pile leg is 180 degrees;
the included angle between the center line of the gear system and the horizontal line of the cylindrical pile leg in the fifth group is 240 degrees;
the included angle between the center line of the sixth group of gear systems and the horizontal line of the cylindrical pile leg is 300 degrees.
Preferably, the rack is welded to the side surface of the cylindrical pile leg.
The hexagonal gear rack lifting device for the cylindrical pile leg type platform has the following beneficial effects:
1) The height of the lifting device is reduced, and the uniformity of gear load as much as possible is ensured. When the gear bearing capacity must be increased, the number of gear rows is not greatly increased due to the increase of the number of gears, so that the non-uniformity of the gear bearing capacity is improved;
2) Under the action of environmental load, the load of the lifting device in all directions can be borne, and the structural form is more stable and reliable.
Drawings
FIG. 1 is a schematic view of a prior art lifting device;
FIG. 2 is a schematic view in the direction A-A of FIG. 1;
FIG. 3 is a schematic view of a hexagonal rack and pinion lifting device for a cylindrical spud leg platform of the utility model;
fig. 4 is a schematic view in the direction B-B in fig. 3.
Detailed Description
In order to better understand the above technical solution of the present utility model, the technical solution of the present utility model is further described below with reference to the accompanying drawings and examples.
Referring to fig. 3 and 4, the utility model provides a hexagonal rack and pinion lifting device 100 for a cylindrical spud leg platform, which comprises a gear system 3, a rack 4 and a lifting frame 5.
The gear system 3, the rack 4 and the lifting frame 5 are all provided with six groups.
Six sets of racks 4 are welded to the sides of the cylindrical spud leg 200.
The six sets of gear systems 3 are arranged in a hexagonal shape at the outer positions of the cylindrical spud legs 200.
The gear system 3 is connected with the corresponding racks 4 through the lifting system 5, so that the gear system 3 can be meshed with the corresponding racks 4 when the cylindrical spud leg platform lifts, works or tows.
The angle alpha between the central line of the first set of gear systems 3 and the horizontal line of the cylindrical spud leg 200 is 0 deg.;
the included angle alpha between the central line of the second group of gear systems 3 and the horizontal line of the cylindrical spud leg 200 is 60 degrees;
the included angle alpha between the central line of the third group of gear systems 3 and the horizontal line of the cylindrical pile leg 200 is 120 degrees;
the included angle alpha between the central line of the fourth group of gear systems 3 and the horizontal line of the cylindrical pile leg 200 is 180 degrees;
the included angle alpha between the central line of the fifth group gear system 3 and the horizontal line of the cylindrical pile leg 200 is 240 degrees;
the angle α between the center line of the sixth set of gear systems 3 and the horizontal line of the cylindrical spud leg 200 is 300 °.
Examples
Referring again to fig. 3 and 4, the hexagonal rack and pinion elevating device 100 for a cylindrical spud leg type platform according to the present embodiment includes six sets of gear systems 3, six sets of racks 4 and an elevating frame 5.
The six gear systems 3 in this embodiment are specifically: a first gear system, a second gear system, a third gear system, a fourth gear system, a fifth gear system, and a sixth gear system.
The six groups of racks 4 are specifically: the first rack, the second rack, the third rack, the fourth rack, the fifth rack and the sixth rack. The first rack, the second rack, the third rack, the fourth rack, the fifth rack and the sixth rack are respectively welded on the cylindrical spud leg 200, and meanwhile, the first gear system, the second gear system, the third gear system, the fourth gear system, the fifth gear system and the sixth gear system are respectively connected with the corresponding first rack, second rack, third rack, fourth rack, fifth rack and sixth rack through the lifting frame 5, so that the six groups of gear systems 3 can be meshed with the corresponding racks 4 when the cylindrical spud leg platform lifts, works or tows.
The bearing characteristics and the arrangement modes of the hexagonal rack and pinion lifting device of the cylindrical pile leg type platform are as follows: the hexagonal rack and pinion lifting device 100 for the cylindrical pile leg platform has six sets of gear systems 3 (i.e. one set of gear systems 3 is arranged in each row) on one plane, and the meshing direction of the gear systems 3 and the corresponding racks 4 and the horizontal plane of the cylindrical pile leg 200 are respectively 0 degrees, 60 degrees, 120 degrees, 180 degrees, 240 degrees and 300 degrees. When twelve sets of gear systems 3 are needed to bear, only two rows of gear systems 3 are needed in the arrangement mode of the hexagonal gear rack lifting device of the cylindrical spud leg platform, so that the height of the lifting frame 5 is greatly reduced, and the bearing non-uniformity of the gear systems 3 and the racks 4 is greatly weakened.
In summary, the cylindrical spud leg platform hexagonal rack and pinion lifting device has a plurality of advantages compared with the traditional lifting device: first, the height of the lifting device is reduced, and the uniformity of gear load as much as possible is ensured. When the gear bearing capacity must be increased, the number of gear rows is not increased greatly due to the increase of the number of gears, so that the unevenness of the gear bearing capacity is improved. Secondly, under the effect of environmental load, the load of elevating gear in all directions can bear, and structural style is more reliable and stable.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the utility model, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the utility model as long as they fall within the true spirit of the utility model.
Claims (2)
1. The utility model provides a cylindrical spud leg class platform hexagonal rack and pinion elevating gear, includes gear system, rack and lifting frame, its characterized in that:
six groups of the gear system, the racks and the lifting frame are all arranged;
six groups of racks are arranged on the side surfaces of the cylindrical pile legs, and the six groups of racks are welded on the side surfaces of the cylindrical pile legs;
the six groups of gear systems are arranged at the outer side positions of the cylindrical pile legs in a hexagonal shape;
the gear system is connected with the corresponding racks through a lifting system to form meshing,
the hexagonal gear rack lifting device of the cylindrical pile leg type platform is provided with six groups of gear systems on a plane, and each row is provided with one set of gear system.
2. The cylindrical spud leg platform hexagonal rack and pinion lifting device of claim 1, characterized in that: the included angle between the central line of the first group of gear systems and the horizontal line of the cylindrical pile leg is 0 degree;
the included angle between the central line of the second group of gear systems and the horizontal line of the cylindrical pile leg is 60 degrees;
the included angle between the central line of the third group of gear systems and the horizontal line of the cylindrical pile leg is 120 degrees;
the included angle between the center line of the fourth group of gear systems and the horizontal line of the cylindrical pile leg is 180 degrees;
the included angle between the center line of the gear system and the horizontal line of the cylindrical pile leg in the fifth group is 240 degrees;
the included angle between the center line of the sixth group of gear systems and the horizontal line of the cylindrical pile leg is 300 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114655.6U CN219490905U (en) | 2023-01-17 | 2023-01-17 | Hexagonal gear rack lifting device for cylindrical pile leg type platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114655.6U CN219490905U (en) | 2023-01-17 | 2023-01-17 | Hexagonal gear rack lifting device for cylindrical pile leg type platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219490905U true CN219490905U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320114655.6U Active CN219490905U (en) | 2023-01-17 | 2023-01-17 | Hexagonal gear rack lifting device for cylindrical pile leg type platform |
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| Country | Link |
|---|---|
| CN (1) | CN219490905U (en) |
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2023
- 2023-01-17 CN CN202320114655.6U patent/CN219490905U/en active Active
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