CN1931662A - Hydraulic lifting stern platform - Google Patents
Hydraulic lifting stern platform Download PDFInfo
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- CN1931662A CN1931662A CN 200610116621 CN200610116621A CN1931662A CN 1931662 A CN1931662 A CN 1931662A CN 200610116621 CN200610116621 CN 200610116621 CN 200610116621 A CN200610116621 A CN 200610116621A CN 1931662 A CN1931662 A CN 1931662A
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- workplatform
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- rudder blade
- lifting
- stand
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Abstract
The present invention relates to ship building technology, and is especially one hydraulically lifting stern platform including working platform, planar slipway, rolling wheels, rudder blade floor stand, propeller floor stand and four main elevating hydraulic cylinders. Of the four main elevating hydraulic cylinders, one is the master one and the others are slave ones. There is one linear displacement sensor in each of the hydraulic cylinders for sensing the elevating displacement and controlling the synchronous displacement. The rolling wheels have separately limited rotating direction, and the rudder blade floor stand and the propeller floor stand separately for installing rudder blade and propeller are screwed to the planar slipway. The present invention is used for installation of rudder blades and propeller and can shorten installation period and raise operation safety greatly.
Description
Technical field
What the present invention relates to is a kind of device of shipbuilding technical field, and specifically, what relate to is a kind of hydraulic lifting stern platform.
Background technology
Development along with the ship building technology, ship building same period, build guality, building safety is all greatly improved, tonneaux de jauge is to present to become great development situation, more than Description of Ship comes year more, press for reliable, safety, stable, easy construction equipment, shipping rudder blade, propeller for vessels are the boats and ships major parts, it is characterized in that volume is big, quality is big, and the biggest quality surpasses 100 tons/, and the installation of shipping rudder blade and screw propeller and hull is all on the quarter carried out, be the restriction that installing space is subjected to stern construction, can not adopt large-scale building berth or sluice to lift up into row and install.
Prior art has two kinds, a kind of is to continue to use original straightforward procedure, on the shell at hull stern position to be installed, weld the sign indicating number that hangs of several loop wheel machines earlier, a steel rope or a heave hand are carefully tied rudder blade or screw propeller, utilization is assembled into the ccasual loop wheel machine and rises and winch to the installation position, the operative employee at the ccasual scaffold through pushing away, move, action such as proposing cooperates and installs, general rudder blade and the screw propeller that a ship is installed needs two time-of-weeks approximately, installation effectiveness is extremely low, the safety extreme difference is installed, the back work amount is very big, and causes and hang sign indicating number and welding of hull housing and cutting, the work capacity of polishing increases, and also brings the hidden danger to the hull quality influence.The dock that this installation method is also greatly wasted has not generally adopted this kind installation method at large-scale shipyard with cycle or ship contract cycle.
Another kind of is the stern working platform device of representative with the Korea S secret service of water mountain (SOOSAN), (referring to equipment operating manual OPERATING MANUAL OF RUDDER ﹠amp; PROPELLER TRANSPORTER) this kind device mainly comprises scalene rectangle workplatform, workplatform is by the flat-bed lifting of finishing the work of four jiaos of four hydraulic rams, the below have four rotatable 90 ° respectively by the scroll wheel of fluid motor-driven, by guarantee after 90 ° of the artificial turns workplatform laterally or vertically move, a both sides sliding stand is installed on the bench board, two lifting stands can be installed respectively, be convenient to the operative employee and install.The problem that this prior art exists has some: (1) is because workplatform is the scalene rectangle, the wheelspan and the wheelbase of the scroll wheel below causing are asymmetric, when cross motion switches to longitudinal movement, following square guide rail is corresponding to be readjusted by wheelspan and wheelbase, and the stability when mobile is brought unreliable factor.(2) bench board below scroll wheel half-twist is by manually finishing, and at the bench board platform when cross motion switches to longitudinal movement, because several scroll wheels are all respectively by fluid motor-driven, if cause the HM Hydraulic Motor rotation direction inconsistent behind the scroll wheel half-twist, the bench board flat-bed is walked about the very big problem of generation, greatly dangerous, and manual operation guarantees it is insecure.(3) four jiaos of four hydraulic rams of workplatform are risen synchronously or are descended by a cover oil circuit control, on the one hand because from oil circuit footpath that oil pipe comes out (through) the oil circuit length difference of each hydraulic actuating cylinder of arrival behind the by-pass valve control, cause the oil pressure loss different, must cause the rising or the descending speed difference of four hydraulic actuating cylinders, the workplatform carrying is greatly not without even on the other hand, the size load causes hydraulic actuating cylinder to rise or descending speed difference, this speed difference causes sometime, and section rises or decline displacement difference, when serious, bench board is knockdown, this will greatly cause installing safety problem, and rudder blade and screw propeller and hull have certain precision, knockdown that mounting hardness will be increased when installing.(4) the lifting stand is installed on the removable slide unit in the both sides of workplatform, when rudder blade is installed, because it is complicated spiral-shaped that rudder blade is, toward down big little, the stand of prior art is straight type stand, and when the operative employee carries out above rudder blade and hull is installed, the upper end must be operated scaffold again and be installed in stand, add springboard and carry out, promptly time-consuming dangerous again.
Summary of the invention
The obvious deficiency that the present invention is directed to known technology is substantial improvements in addition, and a kind of hydraulic lifting stern platform is provided, and makes its installation of satisfying the rudder blade and the screw propeller of boats and ships stern, has overcome the deficiency in the background technology.
The present invention is achieved by the following technical solutions, and hydraulic lifting stern platform of the present invention comprises: workplatform, plane slide unit, scroll wheel, rudder blade stand, screw propeller stand.Annexation is: workplatform is respectively established a main lifting hydraulic cylinder for four jiaos, the plane slide unit of both sides slip is equipped with in the workplatform top, horizontal and vertical scroll wheel of advancing along track is convenient at rotatable 90 ° of angles that fluid motor-driven is housed below the workplatform, in four main lifting hydraulic cylinders, one of them main lifting hydraulic cylinder is a main hydraulic cylinder, and other three main lifting hydraulic cylinders are the subordinate hydraulic actuating cylinder; A linear displacement transducer respectively is installed on main hydraulic cylinder and subordinate hydraulic actuating cylinder, in order to sensing, lifting displacement, the synchronous shift of three subordinate hydraulic actuating cylinders of control; The hand of rotation of four scroll wheels in workplatform below is single direction rotations that limit.Rudder blade stand and screw propeller stand are to use separately respectively when rudder blade and screw propeller are installed, and are installed on bolt connecting mode on the plane slide unit of workplatform.
Workplatform of the present invention is equilateral rectangle, and correspondingly, four scroll wheel wheelspans of workplatform below are identical with wheelbase.
Four scroll wheels of the present invention, each adorns a rotation direction sensor in that its revolving wheel is one-sided, guarantees to be switched to by side travel at workplatform to vertically move or to limit four scroll wheels when switching to side travel be that single direction is walked by vertically moving.
But bolt together is installed the rudder blade stand on the slide unit of plane of the present invention, and the design of the rudder blade stand the superiors has movably operation platform.
Described operation platform is topmost moved to mounting center by the and arranged on left and right sides stand respectively, and respectively by two or four Driven by Hydraulic Cylinder that main lifting hydraulic cylinder is outer.
The linear displacement transducer of the present invention on main hydraulic cylinder and subordinate hydraulic actuating cylinder is a kind of control (drawing) rope formula coder, the live real time position feedback of the coding that utilizes the main hydraulic cylinder displacement to produce.
Main innovate point of the present invention: walking carriage master jacking cylinder has the Synchronous motion control of band track channel, and its synchronization accuracy and is not subjected to the influence of external environmental factor in 5mm; Increase the road wheel rotation direction sensor, commutate to driving HM Hydraulic Motor automatically, avoided the generation of maloperation; Rudder blade is installed stand increases telescopic workplatform topmost, easy and safe to operate.
Use the present invention to carry out the installation of propeller for vessels and rudder blade, the production cycle is shortened greatly, former installation one cover screw propeller and rudder blade need the time in a week, and existing needs the time just can finish, and Cao Zuo safety simultaneously also increases greatly.
Description of drawings
Fig. 1 is used for the structural representation that rudder blade is installed for the present invention
Fig. 2 is used for the structural representation that screw propeller is installed for the present invention
The specific embodiment
Shown in Fig. 1-2, hydraulic lifting stern platform of the present invention comprises: workplatform 1, plane slide unit 2, scroll wheel 3, rudder blade stand 4, screw propeller stand 5.Workplatform 1 is main body of the present invention, and plane slide unit 2 is installed on plane on the workplatform 1, and whole hydraulic lifting stern platform supports by roller wheel 3, and rudder blade stand 4 and screw propeller stand 5 are installed on respectively on the plane slide unit 2.
Rudder blade is placed on the workplatform 1 and the centre of both sides rudder blade stand 4, and screw propeller lies on the tray 6 of screw propeller stand 5.On 1 four jiaos of the workplatformes a main lifting hydraulic cylinder 7 is installed respectively, can be with workplatform 1 vertical displacement, play with stand and rudder blade on the workplatform 1 or screw propeller vertical uplift to the effect of stern position to be installed, can finely tune distance during installation, the fitting process of concrete screw propeller is as follows:
Earlier the present invention is laterally laid at hull outer hull and put in place and thereunder rotating direction to be walked is laid two guide rails 8, screw propeller to be installed is placed on the tray 6 of both sides screw propeller stand 5 of workplatform 1, the hydraulic lifting stern bench board that screw propeller will be housed then advances to the hull installation axis relevant position of stern, again with hydraulic lifting stern platform elder generation jacking certain height, manual spiral jacking device 9 and ground supporting and locking with four limits on the workplatform 1, the hydraulic lifting stern bench board that descends again makes scroll wheel 3 break away from the below track, again with four scroll wheel 3 half-twists, make it can be along the hull axial traveling, four scroll wheels 3 are respectively by fluid motor-driven separately, the switched in opposite that occurs four walking scroll wheels 3 when preventing to rotate, in each scroll wheel 3 one side a rotation direction sensor is housed, the automatic travel direction of system switches, guarantee that four scroll wheels 3 are the single direction walking, after being rotated in place, again below scroll wheel 3, lay two tracks again with the hull vertical consistency, jacking hydraulic lifting stern bench board makes four to walk roller 3 and contact with two guide rails 8, unclamp manual spiral jacking device 9, by controller and hydraulic efficiency pressure system whole hydraulic lifting stern bench board is run to and hull stern position to be installed again.This state has been in state to be installed, during formal the installation, start four main lifting hydraulic cylinders 7 on four jiaos of the hydraulic lifting stern platforms simultaneously by controller and hydraulic efficiency pressure system, with the distance of workplatform 1 together with one section setting of screw propeller vertical uplift of top, when four main lifting hydraulic cylinders 7 are carried out vertical displacement, owing to arrive the fluid amount difference that hydraulic actuating cylinder pipeline length difference causes, the rudder blade of workplatform 1 top or the quality split of screw-propeller lifting stand are along the main lifting hydraulic cylinder 7 load differences of inhomogeneous four of causing of workplatform 1 horizontal distribution, the velocity of displacement of four main lifting hydraulic cylinder 7 risings will be different, to cause the dangerous work state of workplatform 1 knockdown when serious, for anti-kind state here occurs, guarantee the synchronous rising of workplatform 1, a dragline type coder class linear displacement transducer 10 respectively is installed in four main lifting hydraulic cylinders 7, by controller and control logic, again through hydraulic efficiency pressure system proportional servo valve automatic guidance hydraulic cylinder speed, go into a closed loop control system, thereby guarantee that workplatform 1 lifting is steadily and in a very accurate diff-H scope.Treat that all above-mentioned end-of-jobs and screw propeller can be identical substantially with hull stern parts to be installed; formally carrying out screw propeller installs when connecting; its accurate installation site can rely on four main lifting hydraulic cylinders 7 to realize the vertical direction fine setting; and rely on four scroll wheels in workplatform 1 below 3 to realize vertically finely tuning along hull; finish until installing; doze as stopping for a long time in the installation process, the craft two spiral jacking devices 9 on workplatform 1 four limits can be threaded to ground downwards and lock the safety guard-safeguard effect.The installation process of rudder blade is that guide rail is directly vertically arranged along the ship axis, need not carry out the scroll wheel commutation and direct mount, and other steps are with the screw propeller installation process.When rudder blade was installed, rudder blade erecting frame topmost operator's station 11 was a telescoping, is stretched out to rudder blade by hydraulic-driven, be convenient to operating personal with near carrying out erection work in the rudder blade position, promptly save a large amount of other scaffolds of building, guarantee safety again.
Be the screw propeller that adapts to multiple boats and ships or the installation of rudder blade, workplatform of the present invention is designed to equilateral rectangle, and the wheelbase of four walking scroll wheels of its below equates, carrying evenly, smooth running.
Claims (6)
1, a kind of hydraulic lifting stern platform, comprise: workplatform, the plane slide unit, scroll wheel, the rudder blade stand, the screw propeller stand, workplatform is respectively established a main lifting hydraulic cylinder for four jiaos, the plane slide unit of both sides slip is equipped with in the workplatform top, horizontal and vertical scroll wheel of advancing along track is convenient at the rotatable 90 ° of angles that are provided with fluid motor-driven below the workplatform, it is characterized in that: in four main lifting hydraulic cylinders, one of them main lifting hydraulic cylinder is a main hydraulic cylinder, other three main lifting hydraulic cylinders are the subordinate hydraulic actuating cylinder, respectively be provided with a linear displacement transducer on main hydraulic cylinder and the subordinate hydraulic actuating cylinder, in order to sensing, the lifting displacement, the synchronous shift of three subordinate hydraulic actuating cylinders of control; The hand of rotation of four scroll wheels in workplatform below is single direction rotations that limit, and rudder blade stand and screw propeller stand are to use separately respectively when rudder blade and screw propeller are installed, and are installed on bolt connecting mode on the plane slide unit of workplatform.
2, hydraulic lifting stern platform as claimed in claim 1 is characterized in that, described workplatform is equilateral rectangle, and correspondingly, four scroll wheel wheelspans of workplatform below are identical with wheelbase.
3, hydraulic lifting stern platform as claimed in claim 1 is characterized in that, described linear displacement transducer is a kind of dragline type coder, the live real time position feedback of the coding that utilizes the main hydraulic cylinder displacement to produce.
4, hydraulic lifting stern platform as claimed in claim 1, it is characterized in that, described four scroll wheels, each adorns a rotation direction sensor in that its revolving wheel is one-sided, guarantees to be switched to by side travel at workplatform to vertically move or to limit four scroll wheels when switching to side travel be that single direction is walked by vertically moving.
5, hydraulic lifting stern platform as claimed in claim 1 is characterized in that, bolt together is installed the rudder blade stand on the slide unit of described plane, and the rudder blade stand the superiors are provided with movably operation platform.
6, hydraulic lifting stern platform as claimed in claim 5 is characterized in that, described operation platform is topmost moved to mounting center by the and arranged on left and right sides stand respectively, and respectively by two or four Driven by Hydraulic Cylinder that main lifting hydraulic cylinder is outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610116621 CN1931662A (en) | 2006-09-28 | 2006-09-28 | Hydraulic lifting stern platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610116621 CN1931662A (en) | 2006-09-28 | 2006-09-28 | Hydraulic lifting stern platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1931662A true CN1931662A (en) | 2007-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610116621 Pending CN1931662A (en) | 2006-09-28 | 2006-09-28 | Hydraulic lifting stern platform |
Country Status (1)
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| CN (1) | CN1931662A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264854B (en) * | 2007-11-12 | 2010-05-19 | 中国电子科技集团公司第四十八研究所 | Multi-point synchronization lifting mechanism composed of steel wire flexible shaft |
| CN101439757B (en) * | 2008-10-24 | 2011-05-11 | 武汉理工大学 | Large-sized aerial work platform for shipbuilding |
| CN102173367A (en) * | 2011-03-04 | 2011-09-07 | 上海交通大学 | Stern hydraulic rudder installing walking trolley |
| CN103482541A (en) * | 2013-09-17 | 2014-01-01 | 中国人民解放军镇江船艇学院 | Dock slipway ship elevator |
| CN105236082A (en) * | 2015-11-10 | 2016-01-13 | 长春理工大学 | Lifting mechanism of tested revolving body |
| CN105800505A (en) * | 2016-05-06 | 2016-07-27 | 国网山东省电力公司博兴县供电公司 | Safety work lifting table specially used for electric power overhaul at night |
| CN108032959A (en) * | 2017-11-21 | 2018-05-15 | 大连中船新材料有限公司 | Walking mechanism and the multi-functional automatic mounting machine of trackless using the walking mechanism |
| WO2019041418A1 (en) * | 2017-08-29 | 2019-03-07 | 广船国际有限公司 | Auxiliary disassembling and assembling tooling for ship propeller shaft and application thereof |
| CN110510060A (en) * | 2019-08-30 | 2019-11-29 | 上海振华重工启东海洋工程股份有限公司 | A kind of tooling for being applicable to rudder blade and propeller and installing and opening and inspecting |
| CN111284648A (en) * | 2018-11-21 | 2020-06-16 | 上海船厂船舶有限公司 | Rudder blade support frame and rudder blade mounting trolley |
| CN111284647A (en) * | 2018-11-21 | 2020-06-16 | 上海船厂船舶有限公司 | Walking trolley for mounting steering oar |
| CN112229649A (en) * | 2020-09-30 | 2021-01-15 | 山东交通学院 | Automobile inertia simulation experiment table with table body capable of lifting in balance and adjustable wheelbase |
-
2006
- 2006-09-28 CN CN 200610116621 patent/CN1931662A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101264854B (en) * | 2007-11-12 | 2010-05-19 | 中国电子科技集团公司第四十八研究所 | Multi-point synchronization lifting mechanism composed of steel wire flexible shaft |
| CN101439757B (en) * | 2008-10-24 | 2011-05-11 | 武汉理工大学 | Large-sized aerial work platform for shipbuilding |
| CN102173367A (en) * | 2011-03-04 | 2011-09-07 | 上海交通大学 | Stern hydraulic rudder installing walking trolley |
| CN102173367B (en) * | 2011-03-04 | 2013-03-20 | 上海交通大学 | Stern hydraulic rudder installing walking trolley |
| CN103482541A (en) * | 2013-09-17 | 2014-01-01 | 中国人民解放军镇江船艇学院 | Dock slipway ship elevator |
| CN105236082A (en) * | 2015-11-10 | 2016-01-13 | 长春理工大学 | Lifting mechanism of tested revolving body |
| CN105800505A (en) * | 2016-05-06 | 2016-07-27 | 国网山东省电力公司博兴县供电公司 | Safety work lifting table specially used for electric power overhaul at night |
| WO2019041418A1 (en) * | 2017-08-29 | 2019-03-07 | 广船国际有限公司 | Auxiliary disassembling and assembling tooling for ship propeller shaft and application thereof |
| CN108032959A (en) * | 2017-11-21 | 2018-05-15 | 大连中船新材料有限公司 | Walking mechanism and the multi-functional automatic mounting machine of trackless using the walking mechanism |
| CN108032959B (en) * | 2017-11-21 | 2024-03-19 | 大连中船新材料有限公司 | Running gear and adopt this running gear's multi-functional automatic mounting plate of trackless |
| CN111284648A (en) * | 2018-11-21 | 2020-06-16 | 上海船厂船舶有限公司 | Rudder blade support frame and rudder blade mounting trolley |
| CN111284647A (en) * | 2018-11-21 | 2020-06-16 | 上海船厂船舶有限公司 | Walking trolley for mounting steering oar |
| CN110510060A (en) * | 2019-08-30 | 2019-11-29 | 上海振华重工启东海洋工程股份有限公司 | A kind of tooling for being applicable to rudder blade and propeller and installing and opening and inspecting |
| CN112229649A (en) * | 2020-09-30 | 2021-01-15 | 山东交通学院 | Automobile inertia simulation experiment table with table body capable of lifting in balance and adjustable wheelbase |
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