CN107381414B - Hydraulic prop jig frame for segmented construction of tension leg platform - Google Patents
Hydraulic prop jig frame for segmented construction of tension leg platform Download PDFInfo
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- CN107381414B CN107381414B CN201710591769.9A CN201710591769A CN107381414B CN 107381414 B CN107381414 B CN 107381414B CN 201710591769 A CN201710591769 A CN 201710591769A CN 107381414 B CN107381414 B CN 107381414B
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- hydraulic
- column
- jig
- section
- tension leg
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/30—Constructional features with positive brakes or locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/052—Support- or transmission members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention relates to a hydraulic prop jig frame for segmental construction of a tension leg platform, which comprises a base, an upright post and a detachable top support head, wherein the upright post is arranged on the base; the upright column comprises a hollow column body and a lifting support column positioned in the column body; the length of the lifting support column is shorter than that of the hollow column body, the upper end of the lifting support column can prop against the top support head to drive the lifting support head to lift, and a hollow structure between the bottom of the lifting support column and the base forms a hydraulic oil cavity which can be connected with a hydraulic system to achieve height adjustment. According to the invention, the prior spiral supporting head structure is eliminated, and the detachable top supporting head is sleeved at the top of the upright post arranged on the base, so that the top supporting head is convenient to install, the waste of time when the top supporting head is installed or detached is avoided, and the lifting support is propped against the top supporting head to lift through hydraulic driving, so that the stepless adjustment of the height of the jig frame is realized.
Description
Technical Field
The invention relates to the technical field of hull moulding beds, in particular to a hydraulic prop moulding bed for segmental construction of a tension leg platform.
Background
The moulding bed for ship body is a special technological equipment for assembling and welding ship body sections. At present, bed-jigs used for building ship bodies are basically adjusted in height by using bolts, so stepless adjustment cannot be realized, when a plurality of bed-jigs are transversely connected, a pull rod is generally required to transversely connect and fix the bed-jigs, after the bed-jigs are sectionally loaded with tires, the bed-jigs cannot be adjusted in height, the top support heads and the pillars of the existing bed-jigs are generally connected in a spiral mode, and time waste can be caused when the top support heads are installed or disassembled.
Disclosure of Invention
The invention aims to provide a hydraulic prop jig frame which can solve the problems that the height of the jig frame cannot be adjusted steplessly and the time for mounting a top support head is long.
The technical scheme adopted by the invention for solving the technical problems is as follows: a hydraulic prop jig frame for segmental construction of a tension leg platform is constructed, and comprises a base, an upright post and a detachable top support head, wherein the upright post is installed on the base;
the upright column comprises a hollow column body and a lifting support column positioned in the column body;
the length of the lifting support column is shorter than that of the hollow cylinder, the upper end of the lifting support column can prop against the top support head to drive the lifting support column to lift, and a hollow structure between the bottom of the lifting support column and the base forms a hydraulic oil cavity which can be connected with a hydraulic system to realize height adjustment.
Preferably, the hydraulic prop bed-jig for tension leg platform segment building is described.
Preferably, the hydraulic system further includes a hydraulic lock cylinder, an overflow valve cylinder, a driving cylinder, a one-way ring type electromagnet, a first hydraulic pipeline connected between the overflow valve cylinder and the hydraulic oil chamber, a second hydraulic pipeline connected between the hydraulic lock cylinder and the hydraulic oil chamber, and a reversing valve disposed on the first hydraulic pipeline and the second hydraulic pipeline.
Preferably, the second hydraulic pipeline is connected with an interface of the hydraulic oil chamber, so that hydraulic oil is fed into the hydraulic oil chamber to push the lifting support to move up and down.
Preferably, the hydraulic locking device for high locking is arranged on the first hydraulic pipeline and the second hydraulic pipeline to form an interlocking loop and physically isolate hydraulic oil in the hydraulic pipelines.
Preferably, the hydraulic locking device for the height locking comprises a hydraulic control one-way valve, and the hydraulic control one-way valve is respectively arranged on the first hydraulic pipeline and the second hydraulic pipeline to form an interlocking loop, so that the locking of the oil cylinder in the jig frame at any position is realized.
Preferably, the column comprises a first section of column and a second section of column located above the first section of column; the diameter of the bottom of the second section of column is smaller than that of the top of the first section of column; the top support head is sleeved on the periphery of the second section of cylinder, and the diameter of the top support head is matched with that of the first section of cylinder.
Preferably, the top support head comprises a cylindrical shell and a top cover body which covers the top opening of the cylindrical shell and is detachably mounted; the cylindrical shell is sleeved on the periphery of the second section of the cylinder.
Preferably, a plurality of toggle plates are distributed on the outer side wall below the first section of column body along the circumferential direction, and the toggle plates are fixed above the base.
Preferably, the plurality of toggle plates comprises four toggle plates; the toggle plate is triangular; the right-angle edge of the toggle plate is fixed on the outer side wall below the first section of column body, the bottom edge of the toggle plate is fixed on the base, and the sum of the length of the bottom edge of the toggle plate and the radius of the bottom of the first section of column body is smaller than the radius of the base.
The hydraulic prop jig frame for the segmental construction of the tension leg platform has the following beneficial effects: the hydraulic support jig frame for the segmental construction of the tension leg platform eliminates the prior spiral supporting head structure, is changed into the structure that the top of the upright post arranged on the base is sleeved with the detachable top supporting head, is convenient for the installation of the top supporting head, avoids the waste of time when the top supporting head is installed or detached, and realizes the stepless adjustment of the height of the jig frame by arranging the lifting support in the hollow cylinder body and arranging the hydraulic oil cavity which can be connected with a hydraulic system in the hollow structure between the bottom of the lifting support and the base, so that the lifting support is propped against the top supporting head to be lifted through hydraulic driving.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a hydraulic prop bed-jig for use in the segmental construction of a tension leg platform according to the invention;
FIG. 2 is a cross-sectional view of the hydraulic prop bed-jig of FIG. 1 for the segmented construction of a tension leg platform;
FIG. 3 is a schematic diagram of the hydraulic prop bed-jig of the present invention for use in the segmental construction of a tension leg platform with the top spreader removed;
FIG. 4 is a schematic diagram of the construction of the present invention with the top spreader cover removed for a hydraulic prop bed-jig for tension leg platform segment building;
FIG. 5 is a top view of a hydraulic prop bed-jig of the present invention for use in the segmental construction of a tension leg platform;
FIG. 6 is a schematic diagram of the hydraulic system of the hydraulic prop bed-jig of the present invention for use in the staged construction of a tension leg platform;
FIG. 7 is a cross-sectional view of the hydraulic system of the hydraulic strut bed of the present invention for use in tension leg platform segment building;
fig. 8 is a schematic diagram of the hydraulic system of the hydraulic prop jig for the segmental construction of tension leg platforms of the present invention.
Detailed Description
Fig. 1 and 2 show a first preferred embodiment of the hydraulic prop jig for the segmental construction of tension leg platforms according to the invention, which can be used for the segmental construction of tension leg platforms, and comprises a base 10, an upright post 20 mounted on the base 10, and a top bracing head 30 which is sleeved on the top of the upright post 20 and can be detached, wherein the base 10 can be placed on a plurality of planes for fixing the upright post 20 and can be used for realizing the lifting and lowering of the jig frame, and the top bracing head 30 can be used for connecting a plurality of jig frames. A plurality of toggle plates 40 are circumferentially distributed on the outer side wall below the upright post 20, and the toggle plates 40 are fixed above the base 10 and are used for connecting the upright post 20 and the base 10, so that the stability of the jig frame is increased.
As shown in fig. 1, the base 10 has a circular plate shape and may be made of a steel plate, an iron plate, or other metal plate. The area of the base 10 is larger than that of the bottom of the upright post 20, so that the effect of increasing the overall stability can be achieved.
As shown in fig. 2 and 3, the upright column 20 is located at a central axis of the base 10, and may be welded to the base 10, and includes a hollow column 21 and a lifting pillar 22 located inside the column 21, wherein a gap is left between an inner sidewall of the column 21 and an outer sidewall of the lifting pillar 22, so as to facilitate the lifting pillar 22 to move up and down inside the column 21. The length of the lifting support column 22 is less than that of the column body 21, the diameter of the bottom surface of the lifting support column 22 is matched with that of the column body 21, and a hydraulic oil chamber 23 which can be connected with a hydraulic system is formed by the hollow structure of the lifting support column 22 and the base 10. It can be understood that the lifting support 22 can be driven by hydraulic pressure to perform lifting movement, so as to achieve height adjustment of the jig frame, and compared with the conventional jig frame, the height adjustment range of the jig frame is specifically large, and the height adjustment range can reach 0 mm-900 mm.
The column 21 comprises a first section of column 211 and a second section of column 212 located above the first section of column 211; the diameter of the bottom of the second section of column 212 is smaller than the diameter of the top of the first section of column 211, and the length of the second section of column 212 is smaller than the length of the first section of column 211, the diameter of the first section of column 211 is matched with the diameter of the bottom of the lifting support 22, and the diameter of the second section of column 212 is matched with the diameter of the lifting support 22, so that the lifting support 22 can extend out of the second section of column 212 conveniently, the height of the jig frame is increased, and the lifting support 22 can be prevented from completely extending out of the second section of column 212 to be separated from the jig frame.
The hydraulic oil chamber 23 is located in the first section of the cylinder 211 and is disposed at the bottom of the lifting support column 22, and the hydraulic oil chamber 23 can be used for storing hydraulic oil and providing hydraulic pressure to drive the lifting support column 22 to lift. The hydraulic oil chamber 23 may be externally connected to a hydraulic system, and the hydraulic oil is supplied to the hydraulic oil chamber 23 through the hydraulic system and generates hydraulic pressure.
Referring to fig. 1 and 2 again, the top brace 30 is sleeved on the periphery of the second section of the column 212, the length of the top brace is matched with that of the second section of the column, and the diameter of the top brace 30 is matched with that of the first section of the column 211. This top brace 30 relies on gravity to combine with the bed-jig cylinder, need not threaded connection or welded fastening, only needs bare-handed dismouting during the change, has practiced thrift the time cost.
As shown in fig. 2 to 4, the top brace 30 is replaceable by a member made of metal or hard rubber, and includes a cylindrical housing 31 and a top cover 32 that covers the top opening of the cylindrical housing 31 and is detachably mounted; the cylindrical shell 31 is sleeved on the periphery of the second section column 212, when the subsection/total section is hung on the jig frame, the cover bodies at the tops of the jig frames can be connected, and the height of the jig frame is locally adjusted by using a theodolite, so that the structure of the subsection/total section keeps the original size precision.
Referring to fig. 1 to 4, the number of the toggle plates 40 is four, and the toggle plates are all fixed above the base 10, it can be understood that the number of the toggle plates is not limited to 4, and may also be 5, 6, etc., the toggle plates 40 may be triangular, the right-angle sides of the toggle plates 40 are fixed on the outer side wall below the first section column 211, and the bottom sides of the toggle plates 40 are fixed on the base 10, so that the probability of the occurrence of structural "hard spots" at the joint of the tooling column and the base is reduced, and the occurrence of cracks in the circular weld at the joint can be effectively reduced; the standing stability of the column body is increased. The toggle plate 40 can be fixed to the outer side wall below the first section column 211 and the base 10 by welding.
As shown in FIG. 5, the length of the bottom edge of the toggle plate 40 and the radius of the bottom of the first section of the column 211 are less than the radius of the base 10, so that the contact area of the bottom and the top is increased, and the stability of the whole is improved. The toggle plate 40 may be made of a metal plate such as a steel plate or an iron plate.
Figures 6 to 8 show a second embodiment of the hydraulic prop jig of the invention for use in the segmental construction of tension leg platforms. The hydraulic system can replace the toggle plate, has the advantages of reducing the probability of structural hard points at the joint of the tool cylinder and the base and effectively reducing cracks of the circular welding seam at the joint; the standing stability of the column body is improved; and the toggle plate design is eliminated, so that the complexity of the integrated installation of the hydraulic system is reduced. The hydraulic system is placed on the base 10, so that the overall gravity center can be reduced, the stability of the jig frame is improved, and the occupation of the space is reduced. It will be appreciated that in other embodiments, the hydraulic system may not be provided on the base 10.
As further shown in fig. 8, the hydraulic system may include a hydraulic lock cylinder 52, a spill valve cylinder 54, a drive cylinder 51, a one-way ring type electromagnet 53, a first hydraulic line 56 connecting between the spill valve cylinder 54 and the hydraulic oil chamber 23, a second hydraulic line 57 connecting between the hydraulic lock cylinder 52 and the hydraulic oil chamber 23, and a selector valve (not shown) provided on the first hydraulic line 56 and on the second hydraulic line 57. The number of the single-coil electromagnets 53 is two, and the single-coil electromagnets can be replaced by torque motors, hydraulic oil can be sucked from the driving oil cylinder 51 through the driving of the single-coil electromagnets 53, and the hydraulic oil is conveyed to the hydraulic oil cavity 23 through the first hydraulic pipeline 56, so that hydraulic pressure is generated, and the lifting support column 22 is pushed to lift. The overflow valve cylinder 54 can be used for constant pressure overflow and has the function of adjusting the flow. The hydraulic lock cylinder 52 can be used for hydraulic oil in the second hydraulic line 57 when the Chu Cunjin rows are locked in height.
A hydraulic locking device 55 for high locking can be arranged in the hydraulic system, and is used for realizing the locking of the oil cylinder in the jig frame at any position and physically isolating the hydraulic oil in the hydraulic pipeline. The hydraulic locking device 55 comprises two hydraulic control one-way valves which are respectively arranged on a first hydraulic pipeline 56 and a second hydraulic pipeline 57 to form an interlocking loop, and the purpose of locking the height of the jig frame is achieved by isolating hydraulic oil of the first hydraulic pipeline 56 and the second hydraulic pipeline 57 from a hydraulic oil cavity 23.
The directional valve (not shown) may be used to control the flow of the hydraulic oil. By adopting the H-shaped structure, when the reversing valve is positioned at the middle position, the two oil ports are directly communicated with the oil tank, the hydraulic control one-way valve can be immediately closed, so that the instant locking is realized, and the locking precision is better.
It should be understood that the above examples only represent the preferred embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (9)
1. A hydraulic prop jig frame for segmental construction of a tension leg platform is characterized by comprising a base (10), a stand column (20) arranged on the base (10) and a detachable top support head (30) sleeved at the top of the stand column (20);
the top support head (30) comprises a cylindrical shell (31) and a top cover body (32) which covers the top opening of the cylindrical shell (31) and is detachably mounted;
the upright column (20) comprises a hollow column body (21) and a lifting support column (22) positioned in the column body (21);
the length of the lifting strut (22) is shorter than that of the hollow cylinder (21), the upper end of the lifting strut (22) can be abutted against the top support head (30) to drive the lifting strut to lift, and a hollow structure between the bottom of the lifting strut (22) and the base (10) forms a hydraulic oil chamber (23) which can be connected with a hydraulic system to realize height adjustment;
the hydraulic system further comprises a hydraulic lock oil cylinder (52), an overflow valve oil cylinder (54), a driving oil cylinder (51), a one-way ring type electromagnet (53), a first hydraulic pipeline (56) connected between the overflow valve oil cylinder (54) and the hydraulic oil cavity (23), a second hydraulic pipeline (57) connected between the hydraulic lock oil cylinder (52) and the hydraulic oil cavity (23), and a reversing valve arranged on the first hydraulic pipeline (56) and the second hydraulic pipeline (57).
2. Hydraulic prop bed-jig for tension leg platform segment building according to claim 1, characterized in that the hydraulic oil chamber (23) is externally connected with a hydraulic system in which a hydraulic locking device (55) for height locking is provided.
3. The hydraulic strut bed-jig for tension leg platform segment building of claim 2 wherein the first hydraulic line (56) is connected to the interface of the hydraulic oil chamber (23) to feed hydraulic oil into the hydraulic oil chamber (23) to push the lifting strut (22) in a lifting motion.
4. A hydraulic prop bed-jig for tension leg platform staging according to claim 2 wherein the hydraulic locking means (55) for height locking is provided on the first and second hydraulic lines (56, 57) to form an interlock circuit and physically isolate the hydraulic oil in the hydraulic lines.
5. Hydraulic prop bed-jig for tension leg platform segment building according to claim 3, characterized in that the hydraulic locking means (55) for elevation locking comprise pilot operated check valves arranged on the first hydraulic line (56) and the second hydraulic line (57), respectively, to form an interlocking circuit enabling the locking of the cylinders inside the bed-jig in any position.
6. A hydraulic prop bed-jig for tension leg platform segment building according to claim 1 wherein the column (21) comprises a first section of column (211) and a second section of column (212) located above the first section of column (211); the diameter of the bottom of the second section of column (212) is smaller than the diameter of the top of the first section of column (211); the top support head (30) is sleeved on the periphery of the second section of column body (212), and the diameter of the top support head (30) is matched with that of the first section of column body (211).
7. The hydraulic strut bed-jig for tension leg platform segment building of claim 6 wherein the cylindrical housing (31) is fitted around the second section of column (212).
8. The hydraulic prop bed-jig for tension leg platform segment building according to claim 6, characterized in that a plurality of brackets (40) are distributed on the outer side wall under the first segment column body (211) along the circumferential direction, and the brackets (40) are fixed above the base (10).
9. The hydraulic strut bed-jig for tension leg platform segment building of claim 8 wherein the plurality of toggle plates (40) comprises four toggle plates (40); the toggle plate (40) is triangular; the right-angle side of the toggle plate is fixed on the outer side wall below the first section of column body (211), the bottom side of the toggle plate (40) is fixed on the base (10), and the sum of the length of the bottom side of the toggle plate (40) and the radius of the bottom of the first section of column body (211) is smaller than the radius of the base (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591769.9A CN107381414B (en) | 2017-07-19 | 2017-07-19 | Hydraulic prop jig frame for segmented construction of tension leg platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710591769.9A CN107381414B (en) | 2017-07-19 | 2017-07-19 | Hydraulic prop jig frame for segmented construction of tension leg platform |
Publications (2)
| Publication Number | Publication Date |
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| CN107381414A CN107381414A (en) | 2017-11-24 |
| CN107381414B true CN107381414B (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710591769.9A Active CN107381414B (en) | 2017-07-19 | 2017-07-19 | Hydraulic prop jig frame for segmented construction of tension leg platform |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110877676A (en) * | 2019-10-29 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Using method of movable jig frame reinforcing device |
| CN113799946A (en) * | 2021-10-27 | 2021-12-17 | 上海外高桥造船有限公司 | Support column type jig frame |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201268383Y (en) * | 2008-09-05 | 2009-07-08 | 广州中船黄埔造船有限公司 | Loose bed jig for ship |
| CN201573765U (en) * | 2009-11-27 | 2010-09-08 | 广州中船黄埔造船有限公司 | Removable marine moulding bed |
| CN203727629U (en) * | 2014-01-14 | 2014-07-23 | 李继先 | Numerical control jig frame strut for ship construction |
| CN203889000U (en) * | 2014-05-29 | 2014-10-22 | 浙江国际海运职业技术学院 | Automatic hydraulic adjustable jig frame |
| CN204173840U (en) * | 2014-11-05 | 2015-02-25 | 国家电网公司 | Voltage transformer jack-up system |
| CN204432987U (en) * | 2014-12-17 | 2015-07-01 | 浙江舟山博斯特船舶设计研究院有限公司 | A kind of movable jig frame system peculiar to vessel |
| CN205111159U (en) * | 2015-11-05 | 2016-03-30 | 温州职业技术学院 | Fluid pressure type bed -jig that looses |
| CN207209854U (en) * | 2017-07-19 | 2018-04-10 | 中国海洋石油总公司 | A kind of hydraulic prop moulding bed for tension leg platform (TLP) sectional construction |
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2017
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