CN104889642A - Folding positioning device and method for pile leg - Google Patents
Folding positioning device and method for pile leg Download PDFInfo
- Publication number
- CN104889642A CN104889642A CN201510267501.0A CN201510267501A CN104889642A CN 104889642 A CN104889642 A CN 104889642A CN 201510267501 A CN201510267501 A CN 201510267501A CN 104889642 A CN104889642 A CN 104889642A
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- China
- Prior art keywords
- spud leg
- segmentation
- plate
- alignment pin
- pile leg
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
Abstract
The invention provides a folding positioning device and method for a pile leg. The device comprises an L-shaped positioning plate, multiple positioning pins are arranged on one inner side of the L-shaped positioning plate, multiple positioning stop blocks are arranged on the other inner side of the L-shaped positioning plate, the cross section of the pile leg is in the shape of an octagon, the pile leg is composed of multiple upper subsections and multiple lower subsections, corresponding pin holes are formed in the upper subsections of the pile leg and the lower subsections of the pile leg, the multiple positioning pines are inserted into the pin holes of the upper subsections and the lower subsections of the pile leg, and the multiple positioning stop blocks make contact with the upper subsections of the pile leg and the lower subsections of the pile leg and are fixedly connected with the upper subsections of the pile leg and the lower subsections of the pile leg; when the device is used, the upper subsections of the pile leg are fixedly connected with the lower subsections of the pile leg through the L-shaped positioning plate, clamp plates are welded to joints of non-work faces of the upper subsections and the lower subsections of the pile leg, the positioning plate is dismantled, preheating and welding operations are conducted on weld joints, associated equipment for hoisting and the like is removed, the clamp plates are cut, and processing is conducted on the weld joint. According to the folding positioning device and method for the pile leg, the folding positioning accuracy is high, the accumulative error is small, the auxiliary devices are fewer, and the operation is convenient.
Description
Technical field
The present invention relates to the making and installation technical field of marine engineering equipment, what particularly relate to offshore wind farm installation ship octagon spud leg closes up location.
Background technology
Along with the aggravation of energy scarcity situation and the growing tension of wind energy turbine set land resource, offshore wind power generation also becomes the development new direction of world today's wind power generation.The installation of offshore wind farm unit has higher technical difficulty relative to the installation of land Wind turbines, needs special wind turbine installation vessel to bear transport and install and just can complete.When wind turbine installation vessel operation at sea, spud leg declines and inserts seabed, and is promoted by wind turbine installation vessel and leave sea certain altitude, forms job platform.Therefore, spud leg is the critical component of wind turbine installation vessel, carries the safety of whole wind-powered electricity generation mounting platform, and determines the installation accuracy of Wind turbines.
Octagon spud leg is AND DEWATERING FOR ORIFICE STRUCTURE, high 71.5m, on four Symmetry Edges of spud leg, equidistant symmetric arrays circular pin hole, for the load-bearing in spud leg lifting process and location, its required precision is very high, and single pin-and-hole can not more than 2mm in the accumulated error of length direction.Because spud leg belongs to overlength super large part, thus take segmental machining and weld the manufacturing process of closing up again.Each segmentation can ensure the dimensional accuracy of segmentation inner pinhole after processing, but spud leg carries out because welding deformation and other various factors cause overall accumulated error comparatively large in the process of closing up, in spud leg folding process between pin-and-hole the guarantee of dimensional accuracy bring great difficulty.
Existing method and apparatus is the installation for circular pile leg mostly, and less for the device of octagon spud leg folding location, and Shortcomings in some aspects.As Oceanography Institute Of Zhejiang application discloses that a kind of mechanical self-locking spud leg mounting rack device (publication number: CN102011385A), this device can realize two-way, the double rub self-locking of upper and lower both direction.But this device needs special making, complex process, also need auxiliary positioning and quote suspender to support.It is crucial that be only applicable to the installation of circular pile leg to device, location when octagon or square spud leg segment folding can not be used for.COSCO Shipyard Group Co., Ltd. discloses the spacing localization method of a kind of octagon spud leg folding (publication number: CN102728980A), spud leg is supported by erection support before welding is closed up in spud leg lifting, guide plate is installed accurately lead, make the cooperation demand that spud leg folding reaches certain, and close up again after adopting horse plate upper and lower for spud leg segmentation to be welded and fixed.The method indirectly ensure spud leg folding by the location of bearing and guide plate between upper and lower segmentation after dimensional accuracy between pin-and-hole, as seen its positioning datum and design basis inconsistent, thus cause this precision of closing up localization method not to be very high.
Summary of the invention
In order to overcome, the octagon spud leg folding positioner existed in prior art is few, between pin-and-hole, low, the servicing unit of dimensional accuracy uses problem that is many and complicated operation in spud leg folding process, what the invention provides a kind of spud leg closes up localization method and device, improves the dimensional accuracy between pin-and-hole in octagon spud leg segment folding process.
A kind of spud leg close up positioner, it is characterized in that, comprise the location-plate of a L shape, multiple alignment pin is provided with inside described L shape location-plate one, multiple position block is provided with inside another, described spud leg cross section is octagon, be made up of multiple upper segmentation and lower segmentation, on described spud leg, segmentation has corresponding pin-and-hole with subsection setup under described spud leg, described multiple alignment pin inserts the pin-and-hole of segmentation under segmentation and described spud leg on described spud leg, described multiple position block contacts with segmentation under segmentation on described spud leg and described spud leg, be fixedly connected with segmentation under segmentation and described spud leg on described spud leg.
Described alignment pin diameter dimension is
distance between described each alignment pin is
Projector distance between described position block and alignment pin is
Described alignment pin and described position block are two.
Spud leg close up a localization method, comprise the following steps:
Step one, provide the location-plate of L shape, multiple alignment pin is set by inside described location-plate one, inside another of described location-plate, multiple position block is set;
Step 2, described spud leg are made up of multiple upper segmentation and lower segmentation, described each segmentation spud leg cross section is octagon, face fixing with described L shape location-plate on described spud leg is working face, all the other are non-working surface, the multiple non-working surfaces marking each segmentation of described spud leg carry out marking, determine the erection sequence of described spud leg and described working face, after installing successively, by the upper segmental hoisting of described spud leg to the top of lower segmentation and held stationary from top to bottom;
On step 3, described spud leg, segmentation has corresponding pin-and-hole with subsection setup under described spud leg, the distance of segmentation on adjustment spud leg, multiple described alignment pin on described L shape location-plate is inserted the pin-and-hole of segmentation under segmentation and described spud leg on described spud leg, and the described position block of described L shape location-plate inside another is contacted with segmentation under segmentation on described spud leg and described spud leg respectively, thus be fixedly connected with segmentation under segmentation and described spud leg on described spud leg;
Step 4, at the junction of the multiple described non-working surface of described spud leg upper and lower segmentation welding horse plate, remove described L shape location-plate, and butt welded seam carries out preheating, welding operation.
In described step 4, after described weld seam preheating, welding, removable hanging device, cuts described horse plate, and carries out polishing cleaning to described weld seam.
Described alignment pin diameter dimension is
distance between described each alignment pin is
Projector distance between described position block and described alignment pin is
Described alignment pin and described position block are two, and described non-working surface is four.
Compared with prior art, the invention has the beneficial effects as follows: the invention provides one and close up positioner and method, be applicable to wind turbine installation vessel octagon spud leg, ensure that positioning datum is consistent with design basis, and directly ensure that the dimensional accuracy of the upper and lower segmentation of spud leg after welding between pin-and-hole by two alignment pins, decrease the accumulated error of whole spud leg.In addition, the servicing unit that this spud leg segment folding targeting scheme only adopts location-plate and horse plate etc. a small amount of, simple to operate, mount and dismount efficient and convenient, can position closing up in process each segmentation of spud leg fast.
Accompanying drawing explanation
Fig. 1 is location-plate front view;
Fig. 2 is the top view of L shape location-plate when being arranged on octagon spud leg;
Fig. 3 is the front view of L shape location-plate when being arranged on octagon spud leg;
Fig. 4 is the partial enlarged drawing of Fig. 3 dotted portion.
Number in the figure: split fix block under split fix pin, the upper split fix block of 13-, 14-under segmentation under segmentation on 1-location-plate, 2-spud leg, 3-spud leg, 11-upper split fix pin, 12-; The diameter dimension of the relative distance of d1-two alignment pins, the projector distance between d2-position block and alignment pin, d3-alignment pin.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of spud leg provided by the invention close up positioner, be applicable to the octagon spud leg of wind turbine installation vessel, this spud leg cross section is octagon, and be made up of multiple upper segmentation and lower segmentation, on spud leg, segmentation has corresponding pin-and-hole with subsection setup under spud leg.
This device comprises the location-plate 1 of a L shape, and as shown in Figure 1, inside one of L shape location-plate, arrange two alignment pins 11 and 12, alignment pin is cylinder, and the diameter dimension d3 of alignment pin is
the relative distance d 1 of two alignment pins is
two alignment pins 11 and 12 insert in the pin-and-hole of segmentation 3 under segmentation 2 and spud leg on spud legs, for the location to the upper and lower section length direction of spud leg, the amount of contraction of steel plate after this distance has taken into full account and welded, ensure that the dimensional accuracy of the upper and lower segmentation of spud leg after welding between pin-and-hole, decrease the accumulated error of whole spud leg.Two position blocks 13 and 14 are fixed with inside another of L shape location-plate, position block is cuboid, two position blocks 13 contact with segmentation 3 under segmentation on spud leg 2 and spud leg with 14, be used for limiting respectively the rotary freedom of the upper and lower segmentation of spud leg, be fixedly connected with segmentation 3 under segmentation 2 and spud leg on spud leg, the projector distance d2 between position block and alignment pin is
ensure that positioning datum is consistent with design basis.
What provide a kind of spud leg in another embodiment of the present invention closes up localization method, what be applicable to the octagon spud leg of wind turbine installation vessel closes up location, described spud leg cross section is octagon, and be made up of multiple upper segmentation and lower segmentation, on spud leg, segmentation has corresponding pin-and-hole with subsection setup under spud leg.
First provide L shape location-plate 1 as shown in Figure 1, inside one of L shape location-plate 1, arrange two alignment pins 11 and 12, alignment pin is cylinder, and its diameter dimension d3 is
relative distance d 1 is
mm, this distance taken into full account welding after the amount of contraction of steel plate, L shape location-plate 1 another inside fix two position blocks 13 and 14, position block is cuboid, the projector distance d2 between position block and alignment pin is
Face fixing with L shape location-plate on spud leg is working face, all the other are non-working surface, marking is carried out to multiple non-working surfaces of each segmentation of spud leg, the erection sequence of unified spud leg and working face, after installing successively, the upper segmentation 2 of spud leg is lifted the top to lower segmentation 3 and held stationary from top to bottom.
As shown in Figure 2, Figure 3 and Figure 4, the distance of segmentation 2 on suitable adjustment spud leg, on location-plate 1 two alignment pin 11 and 12 is inserted respectively in adjacent two pin-and-holes of segmentation 2 and lower segmentation 3 on spud leg, and allow the position block 13 of L shape location-plate 1 inside another contact with lower segmentation 3 with segmentation on spud leg 2 respectively with 14, thus realize the location completely of all frees degree of the upper and lower segmentation of spud leg, be fixedly connected with segmentation 3 under segmentation 2 and spud leg on spud leg.
Four non-working surface junction welding horse plates of segmentation 2 and lower segmentation 3 on spud leg, segmentation on spud leg 2 is fixedly connected with recession with segmentation under spud leg 3 except location-plate, then butt welded seam carries out preheating, welding operation.After having welded, remove the relevant devices such as lifting, cutting horse plate, last butt welded seam carries out polishing cleaning.
The servicing unit that this octagon spud leg folding method only adopts location-plate and horse plate etc. a small amount of, more more convenient than prior art, save servicing unit, and simple to operate, mount and dismount efficient and convenient, can accurately locate closing up in process each segmentation of octagon spud leg fast.
Spud leg of the present invention close up positioner and method, not only ensure that positioning datum is consistent with design basis, the dimensional accuracy of the upper and lower segmentation of spud leg after welding between pin-and-hole is directly ensure that by two alignment pins, decrease the accumulated error of whole spud leg, also reduce the use of servicing unit, simple to operate, accurate positioning, application prospect is wide.
Above-mentioned explanation illustrate and describes the preferred embodiments of the present invention, as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (9)
1. a spud leg close up positioner, it is characterized in that, comprise the location-plate of a L shape, multiple alignment pin is provided with inside described L shape location-plate one, multiple position block is provided with inside another, described spud leg cross section is octagon, be made up of multiple upper segmentation and lower segmentation, on described spud leg, segmentation has corresponding pin-and-hole with subsection setup under described spud leg, described multiple alignment pin inserts the pin-and-hole of segmentation under segmentation and described spud leg on described spud leg, described multiple position block contacts with segmentation under segmentation on described spud leg and described spud leg, be fixedly connected with segmentation under segmentation and described spud leg on described spud leg.
2. device according to claim 1, is characterized in that: described alignment pin diameter dimension is
distance between described each alignment pin is
3. device according to claim 1, is characterized in that: the projector distance between described position block and alignment pin is
4. device according to claim 1, is characterized in that: described alignment pin and described position block are two.
5. spud leg close up a localization method, comprise the following steps:
Step one, provide the location-plate of L shape, multiple alignment pin is set by inside described location-plate one, inside another of described location-plate, multiple position block is set;
Step 2, described spud leg are made up of multiple upper segmentation and lower segmentation, described each segmentation spud leg cross section is octagon, face fixing with described L shape location-plate on described spud leg is working face, all the other are non-working surface, the multiple non-working surfaces marking each segmentation of described spud leg carry out marking, determine the erection sequence of described spud leg and described working face, after installing successively, by the upper segmental hoisting of described spud leg to the top of lower segmentation and held stationary from top to bottom;
On step 3, described spud leg, segmentation has corresponding pin-and-hole with subsection setup under described spud leg, the distance of segmentation on adjustment spud leg, multiple described alignment pin on described L shape location-plate is inserted the pin-and-hole of segmentation under segmentation and described spud leg on described spud leg, and the described position block of described L shape location-plate inside another is contacted with segmentation under segmentation on described spud leg and described spud leg respectively, thus be fixedly connected with segmentation under segmentation and described spud leg on described spud leg;
Step 4, at the junction of the multiple described non-working surface of described spud leg upper and lower segmentation welding horse plate, remove described L shape location-plate, and butt welded seam carries out preheating, welding operation.
6. method according to claim 5, is characterized in that: in described step 4, and after described weld seam preheating, welding, removable hanging device, cuts described horse plate, and carries out polishing cleaning to described weld seam.
7. method according to claim 5, is characterized in that: described alignment pin diameter dimension is
distance between described each alignment pin is
8. method according to claim 5, is characterized in that: the projector distance between described position block and described alignment pin is
9. device according to claim 5, is characterized in that: described alignment pin and described position block are two, and described non-working surface is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267501.0A CN104889642B (en) | 2015-05-22 | 2015-05-22 | Folding positioning device and method for pile leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267501.0A CN104889642B (en) | 2015-05-22 | 2015-05-22 | Folding positioning device and method for pile leg |
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| Publication Number | Publication Date |
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| CN104889642A true CN104889642A (en) | 2015-09-09 |
| CN104889642B CN104889642B (en) | 2017-01-18 |
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| CN201510267501.0A Active CN104889642B (en) | 2015-05-22 | 2015-05-22 | Folding positioning device and method for pile leg |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930373A (en) * | 1973-05-21 | 1976-01-06 | Roy Asserback | Reinforced concrete pile and a method of manufacturing such a pile |
| CN102966100A (en) * | 2012-10-25 | 2013-03-13 | 国鼎(南通)管桩有限公司 | Tensioned spun concrete (TSC) and prestressed high-strength concrete (PHC) combined pile |
| CN103184735A (en) * | 2013-03-27 | 2013-07-03 | 上海中技桩业股份有限公司 | Connection structure of prestressed reinforced concrete hollow square pile |
| CN103774642A (en) * | 2014-01-14 | 2014-05-07 | 钟智谦 | Pile connection structure and pile |
-
2015
- 2015-05-22 CN CN201510267501.0A patent/CN104889642B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930373A (en) * | 1973-05-21 | 1976-01-06 | Roy Asserback | Reinforced concrete pile and a method of manufacturing such a pile |
| CN102966100A (en) * | 2012-10-25 | 2013-03-13 | 国鼎(南通)管桩有限公司 | Tensioned spun concrete (TSC) and prestressed high-strength concrete (PHC) combined pile |
| CN103184735A (en) * | 2013-03-27 | 2013-07-03 | 上海中技桩业股份有限公司 | Connection structure of prestressed reinforced concrete hollow square pile |
| CN103774642A (en) * | 2014-01-14 | 2014-05-07 | 钟智谦 | Pile connection structure and pile |
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| Publication number | Publication date |
|---|---|
| CN104889642B (en) | 2017-01-18 |
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Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Address before: 226006 No. 1, COSCO Road, Jiangsu, Nantong Patentee before: COSCO Shipyard Group Co., Ltd. |