DE2366613C2 - Double crane - Google Patents

Description

{■ SchwenknvMoren must be provided. In addition,

\ this well-known design changes the use of three

Ball slewing rings or three other rotatable ones

> ^The invention relates to a double crane according to the 30 supports, the support tilting forces on the preamble of the main claim. would have to take.

_s From DE-OS 19 65 649 a double crane is known. In such known crane devices, the one supporting column forming the crane foundation is a double jib cranes with a common mast on which two supporting rings can be rotated on top of each other - 35 required double driver's cabs nothing is said * "ge is one of the crane towers attached by means of a cantilever arm DE-GM 72 21122 describes a double \ Between the two support rings there is a toothed ring on a slewing crane with two pivoting columns around a communal support column. The same vertical axis, arranged independently of one another at their feet, engages in the toothed ring for the rotary drive and the crane leather support rings, which can be swiveled about horizontal axes. The support rings form the bearing 40, in which the vertical pivot axis of the one b- for the two crane towers, each support ring having to be provided with a crane coaxially with a pivotable cantilever arm on several bearings. that carries the second crane is tidy.

> Carry the support rings at a large distance from the ring gear with which the swivel pinions are arranged _{at t.} The DD-PS 26 559 shows a multiple 45 of the cranes are engaged. The swiveling cantilever

The slewing gear for the temporarily slowly rotating working arm can be connected to the

rate, for example mobile cranes. The multiple turntable-side crane foundation must be connected. That

work is made up of a combination of several trunnions - the same applies to the first crane that works around the joint

formed ser rotary connections, which is pivotable directly or tower axis.

are connected to each other via spacer rings. 50 This utility model continues to show one from beisind either in alternating order rotary connections ball rotary connections formed structural unit that fertilize and spacer rings or just rotary connections from an inner ring, an outer ring and one above the other is arranged around a common axis of rotation, the four-track central ring with net and are firmly connected to each other by connecting means to the ship-side crane foundation. bound. The slewing rings consist of one with each 55 The object of the invention is to provide one Rotary rings coupled to a working device, each of which designates the double crane at the beginning of the description a ring gear is provided and the independent th type to be designed in such a way that while maintaining the each other in engagement with pinions of single drives. On each rotating ring, one of the working devices is created with the simplest possible structure attached. The pinions are each combined with a stationary aneo and in particular the bearing of the individual cranes connected to the corresponding, so that they cook with commercially available components Ring gear connected to the rotating ring and the adjustable ring attached to it to rotate. This task is carried out by the in the characterizing

This well-known multiple rotating mechanism is part of the main claim, which is a complex part of the features specified the construction and has the disadvantage that it solves at 65. The invention enables a very simple and Working devices connected to the rotating rings are not possible with commercially available components are fully pivotable against each other, tion. Custom-made products for swivel bearings

It is still a ship crane device (DE-GM are avoided.

In claim 2, a particularly advantageous embodiment is described.

An embodiment of the invention is explained with reference to the drawing, which shows a vertical section through the shows middle part of a double crane

In the hull, not shown, a crane foundation 1 is attached, which has an end plate at its upper end 3 carries On the edge of a race of a double-row spherical slewing ring 51 is attached The other race of the slewing ring is on the swivel body 29 of the first crane 8 or attached to its tower 7 Below the slewing ring 51 is another slewing ring 52 of the Second crane 19 arranged, the running ring of which on an annular bracket arranged on the crane foundation 1 53 is mounted. The mating ring carries the part of the cantilever arm 17 designed as a crane ring carrier 32.

This in turn is firmly connected to the crane tower 18 of a second crane 19, which in the same way as the first crane 8 is formed. In the cantilever arm 17, a pivot drive 20 is mounted which consists of a drive motor 21 and a swivel pinion 22 which meshes with the ring gear 5 in turn on the end plate 3 is attached In the same way, a pivot drive 10 is mounted in the cantilever arm 29, which consists of a drive motor 11 and a swivel pinion 12, which in turn meshes with the ring gear 5.

In the lower area of each tower 7 and 18, the booms are pivotable about the horizontal axes 25, 28 13, 27 of the cranes arranged with the help of dor Rocking ropes 14 and hoisting ropes 15 are controlled.

1 sheet of drawings

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Claims (2)

1 2 19 60 442) with two about a common vertical axle claims: se pivotably arranged crane booms known, the luffing at their foot ends about horizontal axes 1. Double crane, especially for ships, are stored with two bars. The crane booms are on their 5 foot ends supported on a common crane foundation can be pivoted around a vertical axis each ten crane towers, at the foot of which a luffing jib of a turntable is mounted, which is connected to a mast with A crossbar, trestle, or dgL for hitting the hinged, pivotable about a horizontal axis The one crane tower is provided with a hoist rope. Another design consists of the axis of the crane foundation swiveling cantilever arm in that the crane boom at their foot ends by one Is rotatably connected and the other crane tower 10 is independent of the vertical axis pivotable on a turntable are supported by this cantilever arm coaxially to the axis, which is firmly connected with the ship Crane foundation is rotatably mounted and where the mast is penetrated E ^ach crane tower with a swivel drive verse- Here, this mast carries a crossbeam on arrival as the turntable is rotated is hen whose swiveling pinion in a common, propose the hoisting ropes, said ring gear 15 connected to the same extent with the crane foundation pivoted In beieingreift, characterized in that the mounting position of each crane boom ^d at its FuB-! ^e both swivel bodies (17, 29) of the cranes (8, 19) end for swiveling about its vertical swivel axis via two superimposed two-lane Ku- and the turntable with a swivel drive each provided with money slewing rings (51, 52) on the ship side. Furthermore, the crane booms can be connected to a turntable on each crane foundation (1), which in turn is mounted on a 2. Double crane according to claim 1, characterized in that the turntable is mounted. shows that the one two-way ball swivel in turn with a separate swivel mechanism binding (51) on the end plate (3) of the crane find, which is particularly useful when the K daments (1) is attached to which the toothed crane boom continues to be used in interconnected operation "wreath (5) for the swivel drives is attached 25 is disadvantageous that this design with three tooth it, wreaths and four slewing gears including four