CN85108063A

CN85108063A - Jack up unit

Info

Publication number: CN85108063A
Application number: CN198585108063A
Authority: CN
Inventors: 兰纳特·阿佩尔斯特伦德; 肯特·安桑德
Original assignee: MacGregor Navire Centrex Ltd
Current assignee: MacGregor Gbr Ltd
Priority date: 1984-11-05
Filing date: 1985-11-01
Publication date: 1986-04-10
Also published as: GB8427929D0; JPS61114998A; KR860003970A; GB2166411A

Abstract

A kind of being used for by transport goods between harbour 10 and boats and ships 11 22 jack up unit of horizontal both arms overhead crane 19, this overhead crane is symmetrically around pillar 20 rotations.Overhanging arm trol(l)ey (-lly) 18a, the 18b that can move and have lifting means 17a, 17b along this arm are installed on each arm.Pillar 20 can be around axle 25 rotations, and axle 25 deviates from the S. A. 21 of the overhead crane 19 that is contained on the pillar 20.Like this, S. A. 21 can move towards adjacent quay 10, so that operation or fell post-job.

Description

Jack up unit

The present invention relates to a kind of jack up unit, particularly relate to a kind of with level, the double-arm overhead crane device that (vice versa) transported goods between harbour and boats and ships.This hoisting crane can be symmetrically around pillar rotation and comprise that on its each crane arm one can move and have the overhanging arm trol(l)ey (-lly) of lifting means along this crane arm.

This Cgantry crane device is used at the harbour that lacks the actv. cargo gear goods is transported to the harbour or transports on the ship from the harbour from freighter usually.

Be equipped with the ship of several this jack up units that are provided with along fence, its loadingunloading time can be less than the loadingunloading time of the ship that is equipped with the traditional hoisting crane of equivalent amount greatly.Its reason is when the lifting means of this overhead crane one end is used for freighting, and the lifting means of this hoisting crane other end is used for unloading simultaneously.

For a certain reason, it is very difficult designing a kind of like this jack up unit, this jack up unit can satisfy the needs of all big load-carrying abilitys, or be at crane arm support and account for less space when falling the position, or long swinging radius and quick travel between each control position simple and reliablely are being arranged outside the shipboard.Owing to relate to mounting process, the base of overhead crane must be arranged on apart from the hull fence a distance, and this reduces with regard to the swinging radius that causes can reaching outside the fence.This overhead crane also must fall in this fence fully, so that this fence does not reveal any part outward.

The jack up unit of prior art comprises a Cgantry crane horn, and this arm can be along the longitudinal movement, and rotates with respect to bolster stake.This Design of device relates to and is arranged on rotation, some driving arrangements that vertically move that are used for overhead crane on this pillar and other driving arrangement that is used to handle the lifting means that is arranged on the crane arm two ends.

The present invention seek to provide a kind of than previously known this class hoisting crane simpler and failure-free jack up unit more.

The invention provides a kind of jack up unit that is used to transport goods, this device includes the cantilever of two approximate horizontal, be rotatably installed in the overhead crane that rotates around first S. A. on the pillar, wherein, pillar is fixed on the bearing and can rotates with respect to second S. A. that departs from this first S. A..

Preferably each cantilever section has an overhanging arm-type trol(l)ey (-lly) that can move and have lifting means along this cantilever.

In a preferred embodiment of the invention, two lifting means are by being arranged near the actuating device synchro control respectively the overhead crane centre of gration.These comprise that along the device that the cantilever that links drives each lifting means a cable drum and pushes away/drawing device.

Each cable drum preferably is equipped with four lifting wire ropes, and each root is connected one jiao of the box gig.

In a useful especially embodiment of the present invention, the elevator steel rope of being sent here by each cable drum branch returns from gig, and be connected in couples and be used for compensating on the setting device of gig with respect to the inclination angle of harbour or boats and ships, thereby the gig steel rope on the diagonal angle is connected together.

In of the present invention further developing, setting device includes a throw of lever, this throw of lever is installed on the S. A., bonded assembly elevator steel rope and S. A. are equidistant fixing in pairs therein, this throw of lever can vertically moving along the steel rope that links to each other, like this, can the rotation by throw of lever adjust gig and the horizontal inclination angle of boats and ships, and can pass through the mobile adjustment gig of throw of lever and boats and ships inclination angle longitudinally.

In another embodiment of the present invention, hoisting cable is distributed to the assembly pulley on each free end of overhead crane from each wire rope roll tube outer surface, introduce the assembly pulley on the overhanging arm trol(l)ey (-lly) then abreast, turn to 180 ° to get back to gig around assembly pulley.On this gig, turn to 180 ° again along overhead crane to setting device.These cantilevers that overhanging arm trol(l)ey (-lly) edge is linked move and need not change the height of this gig with respect to this hoisting crane.

In another useful embodiment of the present invention, push away/drawing device comprises a piston oil-cylinder separately, one end of piston oil-cylinder is fixed on the many pulleys that are used for two draught lines, wherein interior draught line is connected between near the overhead crane S. A. the pulley and overhanging arm trol(l)ey (-lly) via many pulleys, and outer draught line is connected between near the cantilever outer end the pulley and overhanging arm trol(l)ey (-lly) via many pulleys.Because such setting moves a certain distance many pulleys by piston oil-cylinder, can cause that the overhanging arm trol(l)ey (-lly) moves exponentially.

Pillar can comprise a bent axle shape part, and it is rotatably installed on the base and has a section roller bearing to make the overhead crane rotation.In other words, pillar has changeed an angle with respect to bearing support.

Mode by only giving an example is described a preferred embodiment of the present invention in conjunction with the accompanying drawings now, wherein:

Fig. 1 wharfs to use the block diagram of the ship of the jack up unit in the invention on the limit;

Fig. 2 represents the birds-eye view of jack up unit in its position of falling;

The use of jack up unit when Fig. 3 to Fig. 6 represents to load onto ship;

Fig. 7 is the scheme drawing that is included in the gig in the jack up unit;

Fig. 8 represents to be used for the design diagram of the pushing away of the overhanging arm trol(l)ey (-lly)/drawing device of jack up unit.

Fig. 1 represents to rest in the local open circuited block diagram of the ship 11 on harbour 10 limits.A double-arm jack up unit 15 is fixed on the main deck 12 of ship, between hatch 13 and fence 14, on a pillar 16.This jack up unit comprises two gig 17a, 17b, hangs on overhanging arm trol(l)ey (-lly) 18a, the 18b that links separately.Trol(l)ey (-lly) 18a, 18b can move along corresponding cantilever.In this width of cloth accompanying drawing, it is that centre of gration rotates to the vertical horizontal position of relative cab body with 21 that horizontal Cgantry crane horn 19 is represented as around pillar 20.In this position, gig 17a drops on the harbour 10 loading case 22, and this container is deposited on the pallet 22a, is packed among the gig 17a by fork truck 23.

Another gig 17b drops to by hatch 13 in the cargo hold of ship 11, by V shape trol(l)ey (-lly) 24 pallet is unloaded from gig.17a fills when gig, and when gig 17b was unloaded, two gigs were raised as shown in Figure 4 up to position shown in Figure 5.Then, the go to dock overhanging arm 18a of a side of overhead crane moves inwards along its cantilever, and overhead crane 19 changes 180 ° around centre of gration 21.Then, the overhanging arm trol(l)ey (-lly) 18b of unloaded gig 17b outwards moves to position shown in Figure 6 along its cantilever, and on this position, two gigs all lower and freight respectively and unload.Repeat this control step, until filling all goods, if from bulk carrier, then described operation is oppositely directed.

Fig. 2 represents that jack up unit forwards the position of falling with the hull parallel longitudinal to.Here overhead crane 19 rotates around centre of gration 21 with respect to pillar 20.In addition, its base 16 is around another centre of gration 25 rotations relatively for pillar 20, and this centre of gration is positioned at apart from the fence 14 of ship and first centre of gration 21 a distance.Therefore, first centre of gration 21 of overhead crane 19 can towards or leave fence 14 and move, therefore, the overhead crane swinging radius that exceeds the ship limit can be very long, and when falling the position, expose from shipboard without any part.

A crash-resistant annular bearing is housed prop liner 16 so that pillar 20 rotations make pillar around base 16 and the internal mechanism that makes overhead crane 19 with respect to pillar 20 rotations comprising one.The operator's compartment 26 that also has an operator on the pillar.The operating position of jack up unit is in the face of harbour 10.Pillar 20 also is equipped with the annular bearing that is used for overhead crane 19.

Engine room 27 is installed in the middle position of overhead crane 19 and includes two hydraulically powered wire reel 27a(that one of them is expressed in Fig. 7) be used for making gig 17a, 17b lifting.Article four, hoisting cable 28 is sent here and is connected on four angles of the gig that links through assembly pulley 29 and other assembly pulley 30 on overhanging arm trol(l)ey (-lly) 18a, the 18b on the outer end of overhead crane 19 by cable drum 27a branch separately, and gig assembly pulley 31 is installed on overhanging arm trol(l)ey (-lly) and the gig.Hoisting cable 28 returns from these gig pulleys 31 and leads to engine room 27, and steel rope 28 is connected on the setting device 32 in pairs there.This setting device includes four pulleys 33, to guide two steel ropes into from two steel ropes 28 of gig one side from the gig opposite side, and be fixed on the double-arm throw of lever 35 equidistantly with turning cylinder 34, this can be along connect vertically moving of steel wire between pulley 33.Relative corner connection is in each side of S. A. 34 on the gig, this means by piston oil-cylinder 36 throw of lever is risen one of along long limit that any direction rotation all can make gig and to make relative limit decline, and this just can compensate the inclination horizontal with respect to hull.The pivot point 34 of throw of lever 35 moves between pulley 33 by piston oil-cylinder 37, will a minor face of gig be risen and relative edge's decline.This just can compensate with respect to hull to tilt longitudinally.

Overhanging arm trol(l)ey (-lly) 18a, 18b can be along overhead crane 19 outwards or move inward and do not change gig 17a, the 17b height with respect to hoisting crane.This is possible, because steel rope 28 parts that move between attachment point, assembly pulley 29 and the setting device 23 of overhead crane 19 turn to 180 ° around assembly pulley 30, therefore when the overhanging arm trol(l)ey (-lly) along overhead crane outwards or when moving inward, steel rope length partly will remain unchanged.

The operation of overhanging arm trol(l)ey (-lly) is to finish by the piston oil-cylinder 38 that is used for each trol(l)ey (-lly), and an end of this piston oil-cylinder 38 is fixed on the cantilever in the hoisting crane 19, and the other end is fixed on many assembly pulleys 39.Cooresponding pulley is fixed on the interior external position of overhead crane 19, interior draught line 41 returns many assembly pulleys 39 after the connecting element on many assembly pulleys 39 is linked pulley 40 on hoisting crane the inner, return the pulley 40 on hoisting crane the inner and come out to be connected to connecting element 42 among overhanging arm trol(l)ey (-lly) 18a, the 18b.When piston oil-cylinder 38 during to the many assembly pulley 39 of external pressure, the overhanging arm trol(l)ey (-lly) will move a segment distance inwards, and the number that this segment distance is equivalent to the steel rope that stretches between inner and many assembly pulleys 39 at hoisting crane is taken advantage of the miles of relative movement of piston oil-cylinder 38.Equally, outer draught line 43 moves between the pulley 40 of many assembly pulleys 39, hoisting crane outer end and the connecting element 44 on the overhanging arm trol(l)ey (-lly) 18.Like this, only obtain the proportional farm labourer of overhanging arm hoisting crane and make radius with the very short forced stroke of piston oil-cylinder 38.

All erecting equipment can be handled with known durable hydraulic efficiency gear.Have only the piston oil-

cylinder

36,37 and 38 of cable drum 27a and these hydraulic efficiency gear will be installed in the overhead crane 19, can make the use of jack up unit fairly simple like this.

Can make various improvement within the scope of the invention. Obviously, this jack up unit can be installed in harbour or goods station etc. and locate, and for example is used for the loading and unloading of railway and shipping of goods, and pillar 20 can tilt, the crank shape shown in the replacement. Elevator 17a, 17b can replace with other lifting device, for example use container spreader.

Claims

1, a kind of jack up unit that is used to transport goods, an overhead crane that comprises the cantilever that has two approximate horizontal, this hoisting crane is rotatably installed on the pillar and rotates around first S. A., and its B-C post is installed on the supporting seat and can rotates around second S. A. that deviates from this first S. A..

2, according to the device of claim 1, wherein each cantilever has an overhanging arm trol(l)ey (-lly) that can move and have lifting means along this cantilever.

3, according to the jack up unit of claim 1 or 2, wherein two lifting means are by being installed near the actuating device synchro control respectively first S. A..

4, according to the jack up unit of claim 3, wherein the device that drives each lifting means along the cantilever that links comprises that a cable drum and pushes away/drawing device.

5, according to the jack up unit of claim 4, wherein four hoisting cables are sent here from cable drum branch separately, and are connected one jiao of the box-shaped gig separately.

6, according to the jack up unit of claim 5, wherein the gig steel rope of being sent here by cable drum branch separately returns from gig, is connected in couples on the setting device at compensation gig inclination angle, thereby the gig steel rope of diagonal position is connected.

7, according to the jack up unit of claim 6, its middle regulator comprises a double-arm throw of lever, this throw of lever is rotatably installed on the S. A., wherein in pairs bonded assembly gig steel rope be fixed on the equidistant position of S. A. on, this throw of lever can vertically moving along static line, like this, can adjust the cross dip of gig by the rotating lever arm, and gig can be adjusted with respect to the vertical inclination angle of supporting base by moving of throw of lever with respect to supporting base.

8, according to the jack up unit of claim 6, wherein the gig steel rope outwards is distributed to assembly pulley on the corresponding free end of overhead crane from separately cable drum, turn back to the assembly pulley on the overhanging arm trol(l)ey (-lly) then abreast, this steel rope turns back on the gig after this pulley turns to 180 °, this steel rope turns to 180 ° to link on the setting device along overhead crane more there, like this, the overhanging arm trol(l)ey (-lly) can move along cantilever and not change the height of gig with respect to cantilever.

9, according to the jack up unit of claim 4, wherein this push away/drawing device comprises a piston oil-cylinder, its end is fixed on the cantilever in the hoisting crane, the other end is fixed on the many pulleys that are used for two tractive steel ropes, wherein an interior haulage cable is connected between the pulley and overhanging arm trol(l)ey (-lly) of contiguous first S. A. through too much pulley, and an outer haulage cable is connected near between the pulley and overhanging arm trol(l)ey (-lly) of cantilever outer end through too much pulley.Like this, many pulleys are moved a certain distance, can make the overhanging arm trol(l)ey (-lly) that bigger displacement is arranged by piston oil-cylinder.

10, require any jack up unit according to aforesaid right, wherein this pillar comprises a bent axle shape part, and this bent axle shape partly is rotatably installed on the base and is useful on the annular bearing of overhead crane rotation.

11, according to any one jack up unit in the claim 1 to 9, wherein this pillar has an inclination angle with respect to supporting base.

12, require any jack up unit according to aforesaid right, wherein supporting base is a ship.

13, according to any jack up unit in the claim 1 to 11, wherein supporting base is a harbour.