CN216689331U - Self-elevating ocean platform hydraulic lifting device - Google Patents
Self-elevating ocean platform hydraulic lifting device Download PDFInfo
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- CN216689331U CN216689331U CN202123065126.1U CN202123065126U CN216689331U CN 216689331 U CN216689331 U CN 216689331U CN 202123065126 U CN202123065126 U CN 202123065126U CN 216689331 U CN216689331 U CN 216689331U
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- pawl
- ring beam
- fixed ring
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- roof beam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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Abstract
The utility model discloses a self-elevating ocean platform hydraulic lifting device, which comprises pile legs, a movable ring beam, a fixed ring beam and a self-elevating ocean platform main body, wherein the fixed ring beam is fixedly arranged on the self-elevating ocean platform main body, the fixed ring beam, the movable ring beam and the self-elevating ocean platform main body are sequentially sleeved on the pile legs through a guide device from top to bottom, pawl assemblies used for limiting the fixed ring beam and the movable ring beam to move axially along the pile legs are arranged on the fixed ring beam and the movable ring beam, and the pawl assemblies are clamped with limiting pieces arranged outside the pile legs so as to realize the separation and fixation of the fixed ring beam and the movable ring beam with the pile legs; still be provided with the lift cylinder who plays the drive action of reciprocating of moving ring roof beam between fixed ring roof beam and the moving ring roof beam, the stiff end of lift cylinder is connected with the otic placode on the fixed ring roof beam through the fastener, the output of lift cylinder is connected through round pin axle and the otic placode on the moving ring roof beam.
Description
Technical Field
The utility model belongs to the technical field of ocean platform engineering equipment, and particularly relates to a self-elevating ocean platform hydraulic lifting device.
Background
The self-elevating ocean platform is one kind of elevating device widely used in ocean engineering and has elevating system to realize the relative elevating and fixing of the platform and the pile leg.
Hydraulic pressure bolt formula operating system is as a common operating system, because it possesses bearing capacity big, advantage such as cost is cheap, and by the wide use on engineering equipment such as oil gas treatment, life platform, wind-powered electricity generation installation ship, among the prior art, hydraulic pressure bolt operating system mainly includes the rotating ring roof beam, all install bolt subassembly on the fixed ring roof beam, and the both ends of lift cylinder are connected with rotating ring roof beam and fixed ring roof beam respectively, when lift platform, through the flexible action of lift cylinder, and cooperate the action of inserting of bolt subassembly on rotating ring roof beam and the fixed ring roof beam, accomplish the lift operating mode of self-elevating ocean platform.
In the process of implementing the utility model, the applicant finds that at least the following problems exist in the prior art:
1. because the diameter of the bolt is less than the diameter of the bolt hole, the stressed area of the bolt is smaller.
2. In order to reduce the resistance of the bolt during action, a lubricating channel needs to be designed in the bolt, and the machining is complex.
3. Due to the fact that the diameter difference between the bolt and the bolt hole is not large, and the position deviation of the bolt hole exists, certain friction exists when the bolt is inserted into the hole, and abrasion of the bolt is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the hydraulic lifting device of the self-elevating ocean platform, which has the advantages of reasonable structure and convenience in operation, the bearing capacity of the lifting device is improved, the structure of a fixing device in the lifting process is simplified, and the abrasion in the locking process is reduced.
The utility model is realized by the following technical scheme: a self-elevating ocean platform hydraulic lifting device comprises pile legs, a movable ring beam, a fixed ring beam and a self-elevating ocean platform main body, wherein the fixed ring beam is fixedly installed on the self-elevating ocean platform main body, the fixed ring beam, the movable ring beam and the self-elevating ocean platform main body are sleeved on the pile legs sequentially through a guide device from top to bottom, pawl assemblies used for limiting the fixed ring beam and the movable ring beam to move axially along the pile legs are arranged on the fixed ring beam and the movable ring beam, and the pawl assemblies are clamped with limiting parts arranged outside the pile legs to realize the separation and fixation of the fixed ring beam and the movable ring beam with the pile legs;
still be provided with the lift cylinder who plays the drive action of reciprocating of moving ring roof beam between fixed ring roof beam and the moving ring roof beam, the stiff end of lift cylinder is connected with the otic placode on the fixed ring roof beam through the fastener, the output of lift cylinder is connected through round pin axle and the otic placode on the moving ring roof beam. According to the utility model, the bolt device in the prior art is changed into the pawl assembly, and the pawl assembly, the lifting oil cylinder and the limiting parts on the pile legs are matched with each other, so that the bearing capacity of the lifting device is improved, the structure of the fixing device in the lifting process is simplified, and the abrasion in the locking process is reduced.
Furthermore, a plurality of rectangular racks are axially arranged along the outer portion of the pile leg shaft, and a plurality of rectangular clamping teeth are uniformly distributed on the rectangular racks at equal intervals. The number of the rectangular racks is determined according to the lifting distance of the platform, the rectangular racks are fixedly connected with the pile legs through welding, and the tail ends of the rectangular racks are fixed to the top ends of the pile legs. Through the setting of rectangle rack, can make elevating gear's fixed more firm, be difficult to the pine and take off, accomplish the lift operating mode from lift-type platform better.
Furthermore, the pawl assembly is respectively arranged on the upper end surfaces of the fixed ring beam and the movable ring beam and consists of a pawl body, a pawl pin shaft, a pawl fixing seat and a pawl oil cylinder; the pawl body is provided with a pawl part matched with the rectangular clamping teeth, the center of the pawl body is provided with a mounting hole for placing a pawl pin shaft, and the pawl pin shaft penetrates through the mounting hole to enable the pawl body to be movably connected with the pawl fixing seat; the fixed end of the pawl oil cylinder is respectively arranged on the lug plates on the upper end surfaces of the fixed ring beam and the movable ring beam through a pin shaft, the output end of the pawl oil cylinder is fixed on the pawl body, and the pawl is driven by the pawl oil cylinder to move in a telescopic mode.
Furthermore, the pawl body takes the diameter of the mounting hole as a central axis, is in an axisymmetric structure and comprises polygonal pawl plates, and the end parts of the pawl plates are respectively provided with a rectangular bend extending outwards so as to form a pawl part matched with the rectangular latch shape. A triangular connecting plate is fixed in the middle of the outer side of the pawl body and is connected with the output end of the pawl oil cylinder through the connecting plate. The clamping jaws arranged at the upper end and the lower end of the pawl respectively are matched with the rectangular rack for use, so that the clamping is firmer, and the operation is convenient.
The platform main body of the utility model has a rising position and a falling position; when the movable ring beam is in a lifting position, the lower end claw part of a pawl in a pawl assembly arranged on the movable ring beam is embedded into the rectangular clamping teeth, a pawl oil cylinder in the pawl assembly arranged on the movable ring beam extends out, the lower end claw part of the pawl is driven to release from the rectangular clamping teeth, the load is borne by the fixed ring beam at the moment, an output shaft of a lifting oil cylinder rises and drives the movable ring beam to reach the sensing position of a sensor, the operation is stopped, a pawl oil cylinder in the pawl assembly arranged on the movable ring beam retracts, the lower end claw part of the pawl is clamped into the rectangular clamping rack, a PLC control program is used for operating the pawl oil cylinder of the pawl assembly arranged on the fixed ring beam to extend out, the lower end claw part of the pawl is released from the rectangular clamping teeth, the lifting action is completed, and the load is borne by the movable ring beam at the moment; and operating the lifting oil cylinder again to contract, moving the platform upwards along with the fixed ring beam at the moment, stopping running after the platform is in place, embedding the claw part at the lower end of the pawl assembly arranged on the fixed ring beam into the rectangular clamping rack, and lifting the platform to a specified position by reciprocating operation.
In addition, the pile leg has a contraction state and a placement state; when the movable ring beam is placed, claw parts at the upper ends of the pawls in the pawl assemblies arranged on the fixed ring beam and the movable ring beam are embedded into the rectangular clamping teeth, and a pawl oil cylinder of the pawl assembly arranged on the movable ring beam retracts, so that the claw parts at the upper ends of the pawls are driven to be loosened from the rectangular clamping teeth, and at the moment, the load is borne by the fixed ring beam; then the output end of the lifting oil cylinder extends out to drive the movable ring beam to reach the sensing position of the sensor, the operation is stopped, the pawl oil cylinder in the pawl assembly arranged on the movable ring beam extends out to enable the claw part at the upper end of the pawl to be clamped in the rectangular clamping teeth, the pawl oil cylinder of the pawl assembly arranged on the fixed ring beam is operated to retract to enable the claw part at the upper end of the pawl to be loosened from the rectangular clamping teeth, and at the moment, the load is borne by the movable ring beam; and (3) operating the lifting oil cylinder again to contract, moving the pile leg downwards along with the movable ring beam at the same time, stopping the operation after the pile leg is in place, embedding the claw part at the upper end of the pawl assembly arranged on the fixed ring beam into the rectangular clamping teeth, and performing reciprocating operation to finish the placement of the pile leg.
Compared with the prior art, the utility model has the beneficial effects that: the utility model changes the bolt device in the prior art into a pawl device, and the pawl, the oil cylinder and the rectangular rack on the lifting column are matched, thereby improving the bearing capacity of the lifting device, simplifying the structure of a fixing device in the lifting process and reducing the abrasion in the locking process.
Drawings
Fig. 1 is a state diagram of the pile leg of the present invention when it is folded and unfolded.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a state diagram of the present invention when the platform is lifted.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a schematic view of the pawl assembly of the present invention.
Description of the drawings: the pile comprises 1-pile legs, 2-rectangular racks, 3-pawl assemblies, 3.1-pawls, 3.2-pawl pin shafts, 3.3-pawl fixing seats, 3.4-pawl control oil cylinders, 4-movable ring beams, 5-lifting oil cylinders, 6-fixed ring beams and 7-platform main bodies.
Detailed Description
This embodiment has proposed a jack-up platform hydraulic lifting device, and the structure is shown as the figure, including fixed ring roof beam 6, movable ring roof beam 4, spud leg 1, and jack-up platform main part 7.
The fixed ring beam 4 is fixedly installed on a platform main body 7 of the self-elevating ocean platform, the fixed ring beam 6, the movable ring beam 4 and the platform main body 7 are movably sleeved on the pile leg 1 through a guide device, meanwhile, the fixed ring beam 6 and the movable ring beam 4 are respectively provided with a pawl assembly 3 used for limiting the fixed ring beam and the movable ring beam to move axially along the pile leg, and the pawl assembly is matched with a rectangular rack welded outside the pile leg to be used so as to achieve separation and fixation of the fixed ring beam and the movable ring beam with the pile leg.
And meanwhile, a lifting oil cylinder 5 for driving the movable ring beam to move up and down is arranged between the fixed ring beam and the movable ring beam, the fixed end of the lifting oil cylinder is connected with the lug plate on the fixed ring beam through a fastener, and the output end of the lifting oil cylinder is connected with the lug plate on the movable ring beam through a pin shaft.
The pawl component 3 in the embodiment is composed of a pawl 3.1, a pawl pin shaft 3.2, a pawl fixing seat 3.3 and a pawl oil cylinder 3.4. Through the telescopic motion of the pawl oil cylinder 3.4, the upper end or the lower end of the pawl 3.1 is separated from or embedded into the groove of the rectangular rack 2, so that the separation and the fixation of the fixed ring beam 6 and the movable ring beam 4 and the pile leg 1 are realized. The lifting of the platform and the retraction of the pile legs are realized.
The working process of the pawl type lifting device for pile leg retraction and extension in the embodiment is as follows:
firstly, the upper ends of pawls 3.1 of pawl assemblies 3 of a ring beam 6 and a movable ring beam 4 are confirmed to be embedded into a rectangular rack 2 groove, then a pawl oil cylinder 3.4 of the pawl assembly 3 arranged on the movable ring beam 4 is retracted, the upper end of the pawl 3.1 is disengaged from the rectangular rack 2 groove, the load is borne by a fixed ring beam 6, a lifting oil cylinder 5 extends out, the movable ring beam 4 stops running after being in place, a pawl oil cylinder 3.4 of the pawl assembly 3 arranged on the movable ring beam 4 extends out, the upper end of the pawl 3.1 enters the rectangular rack 2 groove, the pawl oil cylinder 3.4 of the pawl assembly 3 arranged on the fixed ring beam 4 is operated to retract, the upper end of the pawl 3.1 is disengaged from the rectangular rack 2 groove, and the load is borne by the movable ring beam 4. And (3) operating the lifting oil cylinder 5 to contract, moving the pile leg 1 downwards along with the follow-up ring beam 4 at the same time, stopping the operation after the pile leg 1 is in place, embedding the upper end of a pawl 3.1 of a pawl component 3 arranged on the fixed ring beam 6 into the groove of the rectangular rack 2, and reciprocating to place the pile leg. The pile retracting process is just reversed and is not repeated.
The working process of the lifting of the pawl type lifting device in the embodiment is as follows:
firstly, the lower ends of pawls 3.1 of pawl assemblies 3 of a ring beam 6 and a movable ring beam 4 are confirmed to be embedded into a rectangular rack 2 groove, then a pawl oil cylinder 3.4 of the pawl assembly 3 arranged on the movable ring beam 4 extends out, the lower end of the pawl 3.1 is separated from the rectangular rack 2 groove, the load is borne by a fixed ring beam 6, a lifting oil cylinder 5 extends out, the movable ring beam 4 stops running after being in place, a pawl oil cylinder 3.4 in the pawl assembly 3 arranged on the movable ring beam 4 retracts, the lower end of the pawl 3.1 enters the rectangular rack 2 groove, the pawl oil cylinder 3.4 of the pawl assembly 3 arranged on the fixed ring beam 6 is operated to extend out, the lower end of the pawl 3.1 is separated from the rectangular rack 2 groove, and the load is borne by the movable ring beam 4. The lifting oil cylinder 5 is operated to contract, at the moment, the platform 7 moves upwards along with the fixed ring beam 6, after the platform is in place, the platform stops running, the lower end of the pawl 3.1 of the pawl assembly 3 arranged on the fixed ring beam 6 is embedded into the rectangular rack 2 groove, and the platform is lifted to a specified position through reciprocating operation. The platform lowering process is just reverse and is not repeated.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made to the utility model as described and illustrated herein without departing from the scope of the utility model as claimed.
Claims (6)
1. The utility model provides a from lift-type platform hydraulic lifting device, includes spud leg, moves ring roof beam, decides ring roof beam and from lift-type platform main part, decide ring roof beam fixed mounting in from lift-type platform main part, just decide ring roof beam, move ring roof beam and from lift-type platform main part and loop through the guider suit from top to bottom on the spud leg, its characterized in that:
the fixed ring beam and the movable ring beam are respectively provided with a pawl component for limiting the fixed ring beam and the movable ring beam to move along the axial direction of the pile leg, and the pawl components are clamped with limiting parts arranged outside the pile leg so as to realize the separation and fixation of the fixed ring beam and the movable ring beam with the pile leg;
still be provided with the lift cylinder who plays the drive action of reciprocating of moving ring roof beam between fixed ring roof beam and the moving ring roof beam, the stiff end of lift cylinder is connected with the otic placode on the fixed ring roof beam through the fastener, the output of lift cylinder is connected through round pin axle and the otic placode on the moving ring roof beam.
2. The jack-up offshore platform hydraulic hoist device of claim 1, characterized in that: and a plurality of rectangular racks are axially arranged along the outer part of the pile leg shaft, and a plurality of rectangular clamping teeth are uniformly distributed on the rectangular racks at equal intervals.
3. The jack-up offshore platform hydraulic hoist device of claim 2, characterized in that: the number of the rectangular racks is determined according to the lifting distance of the platform, the rectangular racks and the pile legs are fixedly connected through welding, and the tail ends of the rectangular racks are fixed to the top ends of the pile legs.
4. The jack-up offshore platform hydraulic hoist device of claim 2, characterized in that: the pawl assembly is respectively arranged on the upper end surfaces of the fixed ring beam and the movable ring beam and consists of a pawl, a pawl pin shaft, a pawl fixing seat and a pawl oil cylinder;
the pawl is provided with a pawl part matched with the rectangular clamping teeth, the center of the pawl part is provided with a mounting hole for placing a pawl pin shaft, and the pawl pin shaft penetrates through the mounting hole to enable the pawl to be movably connected with the pawl fixing seat; the fixed end of the pawl oil cylinder is respectively arranged on the lug plates on the upper end surfaces of the fixed ring beam and the movable ring beam through a pin shaft, the output end of the pawl oil cylinder is fixed on the pawl, and the pawl is driven by the pawl oil cylinder to move in a telescopic mode.
5. The jack-up offshore platform hydraulic hoist device of claim 4, characterized in that: the pawl uses the diameter of mounting hole as the center pin, is the axisymmetric structure, including polygonal pawl body, the tip of pawl body all has the rectangle of outside extension to bend to form with the claw of rectangle latch shape assorted.
6. The jack-up offshore platform hydraulic hoist device of claim 4, characterized in that: a triangular connecting plate is fixed in the middle of the outer side of the pawl body and is connected with the output end of the pawl oil cylinder through the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123065126.1U CN216689331U (en) | 2021-12-08 | 2021-12-08 | Self-elevating ocean platform hydraulic lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123065126.1U CN216689331U (en) | 2021-12-08 | 2021-12-08 | Self-elevating ocean platform hydraulic lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216689331U true CN216689331U (en) | 2022-06-07 |
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ID=81837827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123065126.1U Active CN216689331U (en) | 2021-12-08 | 2021-12-08 | Self-elevating ocean platform hydraulic lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216689331U (en) |
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2021
- 2021-12-08 CN CN202123065126.1U patent/CN216689331U/en active Active
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