CN102328731B - Method for arranging overlong guide rail of pipe stevedoring crane - Google Patents
Method for arranging overlong guide rail of pipe stevedoring crane Download PDFInfo
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- CN102328731B CN102328731B CN2011101444294A CN201110144429A CN102328731B CN 102328731 B CN102328731 B CN 102328731B CN 2011101444294 A CN2011101444294 A CN 2011101444294A CN 201110144429 A CN201110144429 A CN 201110144429A CN 102328731 B CN102328731 B CN 102328731B
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Abstract
The invention relates to a method for arranging an overlong guide rail of a pipe stevedoring crane. In the method, all sections of a guide rail are positioned on a ship from a stern to a stem of a deck A, and the guide rail of a pipe hoisting crane can be arranged in position on the deck A after welding work is finished. The method for arranging the guide rail of the pipe hoisting crane is characterized by comprising the following steps of: positioning the guide rail; performing assessment measurement on the levelness of the deck; welding a fixing base plate; determining an adjusting base plate; hoisting and welding the guide rail; and arranging a rack. The method has the advantages that: by the process, the rail of the pipe stevedoring crane can be arranged quickly and conveniently; and the sections of the rail are completely combined with a ship body when the rail is arranged.
Description
Technical field
The present invention relates to a kind of installation method of deck crane track, specifically a kind of method installation ship that adopts accurate location, segmentation to install installation method of crane track.
Background technology
On boats and ships, erecting crane is the comparatively general a kind of equipment of modern ships.But the installation of hoisting crane, can be just not identical to different boats and ships installation requirements because of dissimilar hoisting crane.
The track that the present invention installs is that special pipe stevedoring crane is supporting, and common guide rails assembling method can not meet the specific (special) requirements of this hoisting crane, these requirements comprise connection between every section, levelness, the guide rail of the welding of tooth bar above guide rail, every guide rail, highly regulate and between the processing etc. in room.
Summary of the invention
Main task of the present invention is to provide a kind of guide rails assembling method of pipe stevedoring crane, with meet this hoisting crane to the connection between every section, levelness, the guide rail of the structure of guide rail, every guide rail, arrangement for adjusting height and between the specific (special) requirements of processing in room.
In order to solve above technical matters, technical scheme of the present invention is: a kind of super-long guiding rail installation method of pipe stevedoring crane, the method on the A deck from stern to bow, all location is completed in segmentation aboard ship, after welding job finishes, can carry out the installation in place on the A deck of pipe hoist guide rail, it is characterized in that: described pipe hoist guide rails assembling step is as follows:
The location of a, guide rail; The measurement of knowing the real situation of b, deck level degree; C, be welded and fixed backing plate; D, definite backing plate of adjusting; E, hang and weld guide rail; F, installation tooth bar.
Also comprise step:
The processing of g, guide clearance: each guide rail is comprised of several sections docking, can not make paint for the gap between the butt end that prevents every section adjacent guide rail and cause corrosion, fills with epoxy resin in the gap between the guide rail butt end after tooth bar is installed.
The processing at h, backing plate interval: adjust backing plates or the interval of 400 millimeters of fixedly having an appointment between backing plate for adjacent every two, for preventing producing corrosion from now on because not making paint, the on-the-spot need be sealed this interval with band steel.
Gap between the butt end of every section adjacent guide rail is the 1.5-2.0 millimeter, and convenient in order to install, can process several piece sheet steel thickness is that 1.8mm is inserted in each gap location.
The positioning step a of described guide rail is: the line of drawing in guide rails assembling zone, A deck by hull marks the line of centers of four guide rails on the A deck by figure.
The measuring process b that knows the real situation of described deck level degree is: hang in the guide rails assembling scope and carry out total measurement of knowing the real situation at every, A deck pipe, measure diff-H maximum and larger a bit or several point, namely deck is minimum and than low spot.
The described backing plate step c that is welded and fixed is: the deck nadir of measuring according to knowing the real situation of described deck level degree reaches than low spot, press backing plate position in guide rails assembling figure, be positioned at nadir and than the position of the low spot the thickest fixedly backing plate (approximately 70 millimeters) that is welded, in other backing plate positions, be welded time thick fixedly backing plate (approximately 65 millimeters), and fixedly backing plate and A deck are fixed with growing spot welding.
Described definite adjustment backing plate steps d is: a guide rail is hung on ship in place, the center line of guide rail that has marked on the center that makes guide rail and deck is consistent, at the lower faceplate of guide rail and fixedly put into the adjustment backing plate between backing plate, make the upper plane maintenance level of the top panel of guide rail, measure one by one the every thickness of adjusting backing plate; The level of guide rail upper surface, need to control with more accurate level indicator, after guide rail and need be reached the requirement of straightness accuracy leveling, will adjust backing plate and fixedly backing plate spot welding fix.
Describedly hang and weld guide rail step e and be: butt welded seam and fixing and adjust backing plate and apply anti-rust paint, guide rail is hung in order one by one and adjusting on backing plate, detect the levelness on plane on guide rail, in the place that needs are adjusted, be encased inside again thin steel disc between guide rail and composition backing, spot welding fixed guide and adjustment backing plate.
Described installation tooth bar step f is: 4 center line of guide rail that hull is drawn are caused the upper plane of guide rail by the A deck, and tooth bar and tooth bar cushion block be installed on guide rail, the upper plane of tooth bar cushion block need keep the parallelism with guide rail upper surface, need to be encased inside sheet steel according to scene below the tooth bar cushion block and be used for fine setting.
The super-long guiding rail installation method of another kind of pipe stevedoring crane, the method on the A deck from stern to bow, all location is completed in segmentation aboard ship, after welding job finishes, can carry out the installation in place on the A deck of pipe hoist guide rail, it is characterized in that: described pipe hoist guide rails assembling step is as follows:
The location of a, guide rail; The measurement of knowing the real situation of b, deck level degree; C, be welded and fixed backing plate; D, installation adjusting device; E, hang and weld guide rail; F, parallelism and highly adjusting; G, installation tooth bar.
Described setting device comprises upper wedge that a pair of slope is identical and the inclined-plane formation bonded to each other of lower wedge, is provided with fixedly backing plate below this time wedge, this fixedly backing plate be fixedly connected with the deck of boats and ships; Fixedly respectively be bolted a screw plate in the both sides of backing plate at this, be provided with on this screw plate respectively with described on corresponding upper screw and the lower screw of wedge and lower wedge both sides, in screw and lower screw, parallelism adjusting bolt and height adjustment bolt are housed respectively on this.
Concrete installation process is: in advance a plurality of fixedly backing plates are arranged and with deck, welded along the guide rails assembling line, then fixedly on backing plate, wedge and lower wedge are being set, then place rail body on upper wedge, and with upper wedge, weld; Then the both sides installation screw plate of the fixedly backing plate below near this time wedge the butt end of every section guide rail, can make the left and right translation of rail body level by regulating the parallelism adjusting bolt, to adjust the parallelism of rail body; Can make hyposphene shape piece sway by height adjustment bolt,, by the relative sway of its inclined-plane with upper wedge inclined-plane, realize the height adjustment to guide rail.Remove parallelism adjusting bolt and height adjustment bolt above the screw plate machine after adjusting, then with lower wedge and upper wedge and fixedly backing plate welding.
The invention has the advantages that: adopt above-mentioned technique, can effectively solve the installation of this pipe stevedoring crane track, and quick and easy; With body section, be combined fully when mounted.
Description of drawings
Fig. 1 is the structural representation of pipe stevedoring crane of the present invention;
Fig. 2 is the distribution front view of pipe stevedoring crane guide rail of the present invention on hull;
Fig. 3 is the distribution birds-eye view of pipe stevedoring crane guide rail of the present invention on hull;
Fig. 4 is the A-A line cutaway view (one of structure) of Fig. 3 of the present invention;
Fig. 5 is the cross section view of another embodiment of guide rail of the present invention.
The specific embodiment
The full name of pipe stevedoring crane of the present invention is MQ4032 pipe stevedoring crane, as shown in Figure 1, it hangs 3 by the seat on the driving 2 under portal frame 1 and portal frame 1 and jointly forms, the maximum load-carrying ability that seat hangs main hook 4 is 40 tons, the main hook 4 spendable maximum distances of outboard are that main hook Ju Qi center is 32m, driving 2 under portal frame 1, its safe working load are 40 tons, and this pipe stevedoring crane is the equipment of to South China Marine Machinery Co., Ltd., directly ordering goods.
Totally 2, the full ship of this pipe stevedoring crane, In Figure 2-4, be arranged in the left and right sides of the F36 on A deck 6～F138 ship, totally 4, its guide rail 5, be arranged between F38～F136, its overall length is 68.6 meters, at the cross-sectional plane of ship, guide rail 5 is respectively 4200mm apart from the distance of stem stern line of centers 7,18200mm (being L6 and the L26 in hull structure).
What the present invention mainly solved is the installation of pipe hoist guide rail.
4 guide rails that pipe of the present invention hangs, be pipe when being hung in load and using, and directly acts on the parts on hull structure, therefore 4 underdeck supporting construction intensity of guide rail A and accurately install, hang with the safety of boats and ships important to pipe.
The requirement of above-mentioned guide rails assembling to the A deck: the A deck level is all 18DH36 at this regional material, requirement is at F38-F136 approximately in the length range of 70 meters, within the height tolerance that closes up the aft deck plane should be controlled at 10 millimeters scopes, the limit size of permission was 20 millimeters.
Below that concrete pipe hangs the installation steps of guide rail on hull:
At first, pipe hangs the manufacturing of guide rail:
Two pipes hang 4 guide rails, and 68.6 meters of every guide rail overall lengths, consider convenient construction, from technique direction, consider, every guide rail divides some sections, and do not need welding between every section. the length of every section guide rail approximately 6 meters for good.
The structure of guide rail: as shown in Figure 4, the present invention relates to a kind of ship pipe stevedoring crane guide rail structure that can guarantee parallelism, comprise ship deck 6, rail body 211, tooth bar cushion block 311, tooth bar 411, upper wedge 511, lower wedge 611, end stop 711.
Secondly, pipe hoist guide rail is aboard ship installed:
From stern to bow, all location is completed in segmentation aboard ship on the A deck, and welding job can be carried out pipe and hang guide rail installation in place on the A deck after finishing.
The line of drawing in guide rails assembling zone, A deck by hull marks the line of centers of four guide rails on the A deck by figure.
Guide rail location and installation aboard ship, except reaching vertical straightness accuracy 1/2000 of single track, 5/10000,7/68600, it is gauge 14000 ± 4 that the limit allows to be of a size of 8/68600() requirement outside, more difficult Important Problems is that the parallelism on 68.6 meters length range inner orbit planes need reach and the requirement of the parallelism of datum plane (approximately 0.5/2000), namely in the range of operation of crane, A, B, C, 4 coplane degrees of D are not more than 5mm, reach this requirement, key is to eliminate the out-of-flat on deck.
Below that the present invention prepares the method for the fixing and adjusting pad plate thickness of each piece of guide rail and in conjunction with the installation step sequence of track, is set forth as follows:
1) in order to measure the accuracy of installation, measure and erection work need be carried out at night, on ship not as the vibratory magnitudes such as firer large be operated in construction.
2) drawing the measurement of line, is mainly need laser-scan (side is flat) instrument or draw the steel rope method.Hang in the guide rails assembling scope and carry out total measurement of knowing the real situation at every, A deck pipe, measure diff-H maximum and larger a bit or several point (be deck minimum and than low spot), press backing plate position in guide rails assembling figure, (approximately 70 millimeters of the thickest fixedly composition backings are welded, i.e. fixing composition backing 2), in other backing plate positions, (approximately 65 millimeters of another kind of fixedly composition backings are welded, i.e. fixing composition backing 1), be fixedly to fix with long spot welding between composition backing and A deck.
3) guide rail is hung near the midway location of ship in place, the center line of guide rail that has marked on the center that makes guide rail and deck is consistent, at the lower faceplate of guide rail and fixedly put into worked-out adjustment backing plate between backing plate, make the upper plane maintenance level of the top panel of guide rail, measure one by one the every thickness of adjusting backing plate, adjust backing plate for every and measure 4 points, take 3 points, fill in the adjustment backing plate and carry out mach form.Every guide rail should be numbered according to its position, in order to avoid obscure.The level of guide rail upper surface, need to control (length of level indicator should be not less than 2 meters) with more accurate level indicator, particularly adjusts backing plate factor amount many, need to number in order, avoids after machinework the problem that can't sit in the right seat.After guide rail and need be reached the requirement of straightness accuracy leveling, spot welding fixed adjustment backing plate and fixing backing plate.
4) the gap theoretical size between every 2 guide rails comprises that dimension limit is the 1.5-2.0 millimeter, and convenient in order to install, can process several piece sheet steel thickness is that 1.8mm is inserted in each gap location.
5) guide rail adjustment backing plate is aboard ship all assorted (levelness, straightness accuracy have all reached requirement), hang and convince rail by patient analysis, first carrying out between fixed bolster plate and A deck reaching fixedly backing plate and the welding of adjusting backing plate on the basis of spot welding, in welding process, should control the minimizing welding deformation amount, welding answers symmetry to carry out, and welding needs to carry out according to the requirement of technical evaluation.
6) on fixedly backing plate and the A deck of two tracks of larboard (or starboard) (68.6 meters), adjust and after fixedly the welding between backing plate is completed, carry out the cleaning of welding slag etc., butt welded seam reaches fixing and adjusts backing plate and paint (anti-rust paint twice), guide rail is hung in order one by one and adjusting on backing plate, detect the levelness on plane on guide rail, in the place that needs are adjusted, be encased inside again thin steel disc (thickness is greatly between the 0.1-1 millimeter) between guide rail and composition backing, spot welding fixed guide and adjustment backing plate, according to above-mentioned welding requirements, carry out the welding between all guide rails and adjustment backing plate.
7) 4 center line of guide rail hull being drawn are caused the upper plane of guide rail by the A deck, tooth bar and tooth bar cushion block are installed by drawing, the upper plane of tooth bar cushion block need keep the parallelism with guide rail upper surface, need to be encased inside sheet steel adjustment below the tooth bar cushion block according to scene, according to the welding step order of guide rail and the requirement tooth bar that has been welded, the need between tooth bar connect and use frock tooth bars (producer provides) to check.The oad of tooth bar cushion block is 50*100*155, and quantity is about 260.And in rail end, 8 rail end backstops are installed.
8) gap between guide rail and guide rail, for preventing that can not make paint causes corrosion, after rail welding is installed end, need fill with epoxy.
9) backing plate below guide rail, the interval of 400 millimeters of having an appointment between every 2 backing plates, for preventing producing corrosion from now on because not making paint, the on-the-spot need be sealed it with the band steel of 4 millimeters thick.
Referring to Fig. 5, be the structure of the another kind of guide rail of the present invention, be provided with fixedly backing plate 80 below this time wedge 611 on architecture basics shown in Figure 4, this fixedly welds on the deck 6 of backing plate 80 and boats and ships; Fixedly respectively by bolt 120, connect a screw plate 90 in the both sides of backing plate 80 at this, be provided with on this screw plate 90 respectively with described on corresponding upper screw and the lower screw of wedge 511 and lower wedge 611 both sides, in screw and lower screw, parallelism adjusting bolt 100 and height adjustment bolt 110 are housed respectively on this.
The installation procedure of integrated guide rail is: in advance a plurality of fixedly backing plates 80 are arranged and with deck 6, welded along the guide rails assembling line, then fixedly on backing plate 80, wedge 511 and lower wedge 611 are being set, place again rail body 211 on upper wedge 511, and with upper wedge 511, weld.Then the both sides installation screw plate 90 of the fixedly backing plate 80 below near this time wedge 611 the butt end of every section rail body 211, can make rail body 211 level left and right translations by regulating parallelism adjusting bolt 100, to adjust the parallelism of rail body 211; Can be so that hyposphene shape piece 611 sway, by the relative sway of its inclined-plane with upper wedge 511 inclined-planes, realize the height adjustment to guide rail by height adjustment bolt 110.Remove parallelism adjusting bolt 100 and height adjustment bolt 110 above screw plate 90 machines after adjusting, then, with lower wedge 611 and upper wedge 511 and fixedly backing plate 80 welding, complete the installation of guide rail.This setting device is simple in structure, and processing ease is adjusted parameter accurate.
Claims (7)
1. the super-long guiding rail installation method of a pipe stevedoring crane, the method on the A deck from stern to bow, after all location, welding job are completed in segmentation aboard ship, can carry out the installation in place on the A deck of pipe hoist guide rail, it is characterized in that: described pipe hoist guide rails assembling step is as follows:
The location of a, guide rail; The measurement of knowing the real situation of b, deck level degree; C, be welded and fixed backing plate; D, definite backing plate of adjusting; E, hang and weld guide rail; F, installation tooth bar;
The measuring process b that knows the real situation of described deck level degree is: hang in the guide rails assembling scope and carry out total measurement of knowing the real situation at every, A deck pipe, measure diff-H maximum and larger a bit or several point, namely deck is minimum and than low spot.
2. the super-long guiding rail installation method of pipe stevedoring crane according to claim 1 is characterized in that: also comprise step:
The processing of g, guide clearance: each guide rail is comprised of several sections docking, can not make paint for the gap between the butt end that prevents every section adjacent guide rail and cause corrosion, fills with epoxy resin in the gap between the guide rail butt end after tooth bar is installed;
The processing at h, backing plate interval: adjust backing plates or the interval of 400 millimeters of fixedly having an appointment between backing plate for adjacent every two, for preventing producing corrosion from now on because not making paint, the on-the-spot need be sealed this interval with band steel.
3. the super-long guiding rail installation method of pipe stevedoring crane according to claim 2, it is characterized in that: the gap between the butt end of every section adjacent guide rail is the 1.5-2.0 millimeter, convenient in order to install, processing several piece sheet steel thickness is that 1.8mm is inserted in each gap location.
4. the super-long guiding rail installation method of pipe stevedoring crane according to claim 1 is characterized in that:
The positioning step a of described guide rail is: the line of drawing in guide rails assembling zone, A deck by hull marks the line of centers of four guide rails on the A deck by figure;
The described backing plate step c that is welded and fixed is: the deck nadir of measuring according to knowing the real situation of described deck level degree reaches than low spot, press backing plate position in guide rails assembling figure, be positioned at nadir and than the position of the low spot approximately fixedly backing plate of 70 millimeters thick that is welded, in other backing plate positions, the approximately fixedly backing plate of 65 millimeters thick that is welded, and fixedly backing plate and A deck are fixed with long spot welding;
Described definite adjustment backing plate steps d is: a guide rail is hung on ship in place, the center line of guide rail that has marked on the center that makes guide rail and deck is consistent, at the lower faceplate of guide rail and fixedly put into the adjustment backing plate between backing plate, make the upper plane maintenance level of the top panel of guide rail, measure one by one the every thickness of adjusting backing plate; The level of guide rail upper surface, need to control with more accurate level indicator, after guide rail and need be reached the requirement of straightness accuracy leveling, will adjust backing plate and fixedly backing plate spot welding fix;
Describedly hang and weld guide rail step e and be: butt welded seam and fixing and adjust backing plate and apply anti-rust paint, guide rail is hung in order one by one and adjusting on backing plate, detect the levelness on plane on guide rail, in the place that needs are adjusted, be encased inside again thin steel disc between guide rail and composition backing, spot welding fixed guide and adjustment backing plate;
Described installation tooth bar step f is: 4 center line of guide rail that hull is drawn are caused the upper plane of guide rail by the A deck, and tooth bar and tooth bar cushion block be installed on guide rail, the upper plane of tooth bar cushion block need keep the parallelism with guide rail upper surface, need to be encased inside sheet steel according to scene below the tooth bar cushion block and be used for fine setting.
5. the super-long guiding rail installation method of a pipe stevedoring crane, the method on the A deck from stern to bow, all location is completed in segmentation aboard ship, after welding job finishes, can carry out the installation in place on the A deck of pipe hoist guide rail, it is characterized in that: described pipe hoist guide rails assembling step is as follows:
The location of a, guide rail; The measurement of knowing the real situation of b, deck level degree; C, be welded and fixed backing plate; D, installation adjusting device; E, hang and weld guide rail; F, parallelism and highly adjusting; G, installation tooth bar; The measuring process b that knows the real situation of described deck level degree is: hang in the guide rails assembling scope and carry out total measurement of knowing the real situation at every, A deck pipe, measure diff-H maximum and larger a bit or several point, namely deck is minimum and than low spot.
6. the super-long guiding rail installation method of pipe stevedoring crane according to claim 5, it is characterized in that: described setting device comprises upper wedge and the lower wedge that a pair of slope is identical, the inclined-plane of upper wedge and lower wedge is bonded to each other, be provided with fixedly backing plate below this time wedge, this fixedly backing plate be fixedly connected with the deck of boats and ships; Fixedly respectively be bolted a screw plate in the both sides of backing plate at this, be provided with on this screw plate respectively with described on corresponding upper screw and the lower screw of wedge and lower wedge both sides, in screw and lower screw, parallelism adjusting bolt and height adjustment bolt are housed respectively on this.
7. the super-long guiding rail installation method of pipe stevedoring crane according to claim 6, it is characterized in that: concrete installation process is: in advance a plurality of fixedly backing plates are arranged and with deck, welded along the guide rails assembling line, then fixedly on backing plate, wedge and lower wedge are being set, place rail body again on upper wedge, and with upper wedge, weld; Then the both sides installation screw plate of the fixedly backing plate below near this time wedge the butt end of every section guide rail, can make the left and right translation of rail body level by regulating the parallelism adjusting bolt, to adjust the parallelism of rail body; Can make hyposphene shape piece sway by height adjustment bolt,, by the relative sway of its inclined-plane with upper wedge inclined-plane, realize the height adjustment to guide rail.Remove parallelism adjusting bolt and height adjustment bolt above the screw plate machine after adjusting, then with lower wedge and upper wedge and fixedly backing plate welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101444294A CN102328731B (en) | 2011-05-31 | 2011-05-31 | Method for arranging overlong guide rail of pipe stevedoring crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101444294A CN102328731B (en) | 2011-05-31 | 2011-05-31 | Method for arranging overlong guide rail of pipe stevedoring crane |
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| Publication Number | Publication Date |
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| CN102328731A CN102328731A (en) | 2012-01-25 |
| CN102328731B true CN102328731B (en) | 2013-11-13 |
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| CN2011101444294A Expired - Fee Related CN102328731B (en) | 2011-05-31 | 2011-05-31 | Method for arranging overlong guide rail of pipe stevedoring crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352397A (en) * | 2017-09-21 | 2017-11-17 | 南通如港船舶配套机械有限公司 | A kind of ship crane rail structure |
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| CN105438742B (en) * | 2014-08-15 | 2017-09-22 | 上海船厂船舶有限公司 | Drill ship moon pool preventer chassis rack and pwoer track installing method |
| CN104986297B (en) * | 2015-06-12 | 2017-03-08 | 中船黄埔文冲船舶有限公司 | A kind of installation method of launching barge horizontal slide |
| CN106624631B (en) * | 2016-12-06 | 2019-12-27 | 大连船舶重工集团装备制造有限公司 | Method for controlling mounting precision of main beam track of gantry crane |
| CN110576943B (en) * | 2019-10-10 | 2022-03-15 | 中船黄埔文冲船舶有限公司 | Deck rail positioning tool and deck rail laying method |
| CN111745563B (en) * | 2020-06-29 | 2021-09-17 | 沪东中华造船(集团)有限公司 | Guide rail installation positioning tool and method |
| CN114954816B (en) * | 2022-05-09 | 2024-05-17 | 大连中远海运重工有限公司 | Method for installing pipe gallery module rail of floating production oil storage and discharge device |
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| GB123162A (en) * | 1918-02-14 | 1919-02-14 | Trent Concrete Ltd | Improvements in or relating to Concrete Railway Sleepers. |
| US3536204A (en) * | 1968-12-06 | 1970-10-27 | Morgan Eng | Anchoring device for gantry cranes |
| JPS5261094A (en) * | 1975-11-14 | 1977-05-20 | Mitsubishi Heavy Ind Ltd | Float transporting ship ? |
| DE2730647C3 (en) * | 1977-07-07 | 1980-04-24 | Mannesmann Demag Ag, 4100 Duisburg | Support for a running rail |
| CN101293599B (en) * | 2007-04-27 | 2011-04-20 | 上海振华重工(集团)股份有限公司 | Method for discharging boat to dock basin with dock yard trestle crane set |
| CN201201863Y (en) * | 2008-04-16 | 2009-03-04 | 中船华南船舶机械有限公司 | Gantry crane for ship |
| CN201619951U (en) * | 2009-12-30 | 2010-11-03 | 中国五冶集团有限公司 | Bridge crane track adjusting device |
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- 2011-05-31 CN CN2011101444294A patent/CN102328731B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352397A (en) * | 2017-09-21 | 2017-11-17 | 南通如港船舶配套机械有限公司 | A kind of ship crane rail structure |
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