DD228527A5 - CRANE WITH FOLDABLE SAEULEN TOP - Google Patents

Abstract

The aim and object of the invention are to provide a crane with hinged Saeulenoberteil, which claimed a low space height when laying down boom and crane overhead shell and are characterized both by simple width and handling. The object is achieved in that boom and column upper part are settable to opposite sides. In particular, the hydraulics for laying down and re-erecting the Saeulenoberteils be designed reversible counter course. Fig. 1

Description

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Crane with hinged column upper part Field of application of the invention

The invention relates to a crane with rotatable, consisting of foot and upper part pillar and hydraulics for rocking and laying down the boom and for raising and lowering the hinged pillar shell, especially for canal-going seagoing vessels.

Characteristic of the known technical solutions

It is known (DE-GM 7 907 258), in which consists of compression strut and tension strut, hinged upper part of the crane column, the strut rigid and immutable in length, the tension strut on the other hand hydraulically extendable fold down the Kransäulenoberteil after laying down the boom to the boom side to be able to. '

In order to use the same hydraulics for rocking the boom for both reloading and for raising the upper part of the crane, in the said utility model already proposed to provide a means for coupling the boom and the upper part of the crane column in the high position of the boom and the strut with its coupling element on To arrange cantilever longitudinally displaceable while the tension strut is releasably secured at one end.

These known embodiments have both structural and operational disadvantages; they still occupy an undesirably high space above the ship deck in the laid-down position of boom and column top, which can lead to difficulties in passing bridges. Further

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they have a reduced groove zur volume of the ship result and are associated with great effort and time to lay down the upper crane column, especially since the coupling between the boom and upper column part carried high in the headrest of the crane column and also the tie rod, if they are not hydraulically extensible is to be released from their connection with the pedestal.

Object of the invention

The aim of the invention is to avoid the disadvantages of the prior art.

Explanation of the essence of the invention;

The invention has for its object to provide a crane of the type described, which claimed a low ceiling height when laying down the boom and crane column upper part and is characterized both by simple design and handling ·

This object has been achieved according to the invention that boom and column top can be set to opposite sides. This not only reduces the height of the room with the boom and the upper part of the crane column lowered, it also results in advantageous possibilities for simplification both in terms of construction and operational aspects. In particular, the hydraulics for laying down and re-erecting the upper column part - the same hydraulics that is used for rocking the boom - reversible formed on Gegenkurs · For this purpose, the hydraulics in the column top part about a horizontal axis are pivotally mounted, preferably at the tension strut of the column upper part · Sin Uncoupling the tension strut or

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Pressure strut from the pedestal is no longer necessary and to change from - - - ipp-rocker mode for laying down the pillar is basically only to ensure that is determined by setting the rocker handle 'the hydraulics with the boom down the hydraulic operation for working on the opposite course Pressure strut can be made extensible - without problems for the cantilever rocking operation - so that neither compression strut nor tension strut must be released from the pedestal to deposit the column top part.

In order to arrive at a good for the rocking operation on the one hand and for the column folding operation on the other hand cheap and a squat, simple hydraulic construction, the rocker handle of the hydraulics in the direction of the column foot can be displaced, preferably such that the rocker handle of the hydraulic system is connected to a rocker, which can be folded down from the low jib to the column foot and can be locked on the boom for the rocking operation.

The hydraulic system is expediently mounted pivotably on the non-extendable tension strut of the upper column part, and in the manner of a rocker about the pivot axis arranged between its ends on the tension strut.

embodiment

In the drawing, the invention is illustrated by an embodiment. Show it:

Pig. 1; a slewing crane according to the invention, with laid down boom, wherein the working high position for Wippbetrieb indicated by dash-dotted lines and the Kransäulenoberteil is also registered after its laying down;

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FIG. 2 is a plan view of Pig · 1 with low cantilever and upper column. FIG.

On a crane column 2, 3, 4 with I * uß 2 and upper part 3, 4, the boom is pivotally mounted about a horizontal rocking axis 5 'on the pedestal. The top of the crane column consists essentially of a strut side lying on the strut 4 and the boom facing away from the strut 3 · The struts 3 »4 are hinged together by a horizontal upper flap axis β and at the column base to the rocker axis 5 parallel lower folding axes 7 and pivotally mounted , The crane column is, as usual, rotatably mounted about a vertical axis 9 and the lifting and Wippbetrieb carried by a winch 20 on head rollers 10 at the top of the crane column, a multiple shear 11, the boom pulleys 12 at the head of the boom and the load rope 21st

For rocking the boom both for laying down and for erecting the upper crane column 3, .4 a hydraulic system in the form of a linear piston hydraulic cylinder 13 and piston rod 14 is provided, which is pivotally mounted about an axis 15 on the top of the crane column, namely at the. facing away from the boom, claimed on train side of the upper part of the tension strut. 3

The rocker handle 16 of the hydraulics on the boom 1 is mounted on a rocker 17. In rocking mode, the rocker is locked on the boom. To switch from rocking operation to folding operation of the column top part, the rocking attack can be released from the boom and offset by pivoting about 180 degrees about the boom 18 attached to the boom in the direction of the column foot. The cylinder 13 of the hydraulic system is in its central area about the axis

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'pivotally mounted on the tie rod 3. By this design is achieved that at relatively short length of the linear hydraulic this can be implemented by the Wippbetrieb on the folding operation for laying down and Wiederrichtricht the upper part of the crane. The claimed during loading operation on pressure side of the crane column upper part, the strut 4, is telescopically extendable, it takes the loading forces positively during loading operation and is simply pulled out when laying the Kransäulenoberteila on the side facing away from the boom 1; a decoupling or hydraulic holding is not required.

.The tension strut 3 is slightly angled above and stored at the column foot 2 so that it is laid flat on the deck, but it is given for the multiple rocker 11 is a good stretched connection to the tip of the laid down to the opposite side -Extra. The boom 1 is provided for storage with a fork leg encompassing the fork 19, so that the bearing for the rocking axis 5 does not project beyond the column foot. The cantilever braces itself on the deck with a support. Di _e rocker 17 and its storage is housed within the fork 19. This is achieved in a simple manner that the hydraulics until the proper laying down of the crane head upper part abflappendes and exerts an upright torque when re-erecting. The bearing for the upper flap axis 6 projects beyond the armature facing edge of the tension strut such that the strut 4 comes to lie tight over the laid down tension strut. Likewise, the bearing for the axis 15 on the cylinder 13 of the hydraulics projects beyond the plank of the tension strut facing the cantilever so that the hydraulics with the cylinder and the piston rod come to rest tightly over the lowered tension strut or the Krauläulenfuß. This arrangement achieves an optimally low storage height from the laid-down boom and crane column upper part. For the same purpose and for backup

the desired frictional engagement "when laying down and erecting the K2appach.se 7 of the tension strut as low as possible on the outside of the pedestal 2. The upper flap axis 6 is approximately at the kink of the tension strut, the pivot axis 15 of the hydraulic, in adaptation to the rockers required piston and pivoting stroke arranged approximately in the chest between the upper and lower folding axis of the tension strut.

The rocking attack is pivoted to the Uml_, egen of the rocker close to the cylinder of the hydraulic system and then with mechanical, z. B. manual support over the dead center down to the pedestal pressed, where he can also be fixed and after laying down the upper part is approximately at the same height H with the axis 15.

Claims (10)

1. Crane with rotatable, consisting of E \ iß and upper part of column and hydraulics for rocking and laying down the boom and for erecting and laying down the hinged column upper part, especially for canal-going seagoing vessels, characterized in that boom (1) and column top (3, 4) are settable to opposite sides, 2. Crane according to item 1, characterized in that the hydraulics (13, 14) for laying down and re-erecting the column top part (3, 4) is designed to counter course reversible » 3. Crane according to the items 1 or 2, characterized in that the hydraulics (13, 14) on the upper column part (3, 4) about a horizontal axis (15) is pivotally mounted. 4 · Crane according to point 3 », characterized in that the hydraulic system (13, 14) is mounted on the tension strut (3) of the upper column part (3, 4). 5. crane according to item 4, characterized in that the pressure strut (4) is extendable. 6. Crane according to one of the items 1 to 5, characterized in that the rocking attack (16) of the hydraulics (13, 14) in the direction of the column foot (2) is displaceable. 7. Crane according to item 6, characterized in that to "offset the rocking attack (16) of the hydraulic system (13, 14) a rocker (17) is provided. -7- Claim for invention 8. Crane according to one of the points 3 "to 7, characterized in that the hydraulics (13, 14) on the unverlängerbaren tension strut (3) of the column upper part (3, 4) is mounted. 9 · Crane after one of the points 7-. to 8, characterized in that the rocker (17) on the boom (1) is mounted. 10. Crane according to one of the points 3 to 9, characterized in that the designed as a linear piston engine hydraulic (13, 14) is supported like a rocker around the arranged between their sine pivot axis (15) on the upper part of the crane column, - See 1 page drawings -