JPS60178191A - Crane particularly for canal-built ship - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The invention relates to a crane, in particular for canal-navigating ships, which comprises a crane post which is pivotable about a vertical pivot axis, consisting of a lower part and an upper part; The present invention also relates to a crane having a hydraulic system for raising and lowering the boom of the crane and for raising and lowering the upper part of the bendable crane post.

Prior Art In the upper part of the bendable lane post, which consists of anti-pressure stays and tension stays, the upper part of the lane post is bent to the same side as the boom (No. 7907258).
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In order to make it possible to use the hydraulic system for raising and lowering the boom and for lowering and raising the upper part of the crane post, the above-mentioned Federal Republic of Germany utility model has already set the device that connects the boom and the upper part of the crane post at the height of the boom. It has been proposed that the tension stay be disposed longitudinally displaceably on the boom by means of its connecting member, while the tension stay is removably mounted at one end.

Problems to be Solved by the Invention The above-mentioned known construction types have structural and operational deficiencies. With this known construction type, the height of the boom and crane post upper part in the folded position above the deck is undesirably high, which creates difficulties when ships are passing under the canal bridge, and also reduces the available space on board the ship. It takes up less space and requires more labor and labor time to knock down the two parts of the crane post. Furthermore, if the boom and the upper part of the crane post are connected at a high position above the top roller of the crane post soil, and the tension stay is not configured to be extendable and retractable by hydraulic pressure, the stay can be It must be removed from the connection to the bottom of the post.

SUMMARY OF THE INVENTION An object of the present invention is to reduce the height of the boom and the upper part of the crane post in the folded position in a crane of the type mentioned above, and to simplify the structure and operation of the crane.

Means for Solving the Problems According to the present invention, the above-mentioned problems are solved in that the boom and the upper part of the crane post are configured to be able to be tilted toward opposite sides.

Effects of the Invention By configuring the crane as described above, it is possible not only to reduce the height of the boom and the upper part of the crane post at the folded position, but also to simplify the structure and operation of the crane. For example, the hydraulic system for lowering and raising the upper part of the crane post can also be used for raising and lowering the boom, and this same hydraulic system can be configured to be reversible, i.e. capable of operating a reverse course. For this purpose, the hydraulic system can be mounted on two parts of the crane post, preferably on a tension stay, so as to be pivotable about a horizontal pivot axis. In this case, it is no longer necessary to remove the tension stay or pressure stay from the bottom of the crane post, and the lifting operation of the boom can be avoided. In order to switch to crane post tilting operation, basically all that is required is to tilt the boom and fix the position of the boom-side luffing and turning point of the hydraulic system by the boom, which causes the hydraulic system to move in the direction of tilting the crane post. is forced to operate. In this case, the pressure stay can be configured to be extendable, so that neither the pressure stay nor the tension stay needs to be removed from the lower part of the crane post in order to lower the upper part of the crane post.

In order to achieve an advantageous use of the φ force for the hoisting movement of the boom on the one hand and for the folding of the crane post on the other hand, and to achieve a compact and simple construction of the hydraulic system, the position of the hoisting pivot point on the boom side of the hydraulic system is can be configured to be able to be shifted toward the bottom of the crane post. In this case, the up-and-down pivot point of the hydraulic system is connected to a pivot arm, and the pivot arm moves from the fallen boom to the crane 7.
+? It is advantageous for the pivot arm to be pivotable towards the lower part of the boom and for the raising and lowering movement of the boom to be lockable to the boom.

The hydraulic device is rotatably supported on a non-extendable tension stay at the top of the crane post, and is also pivotably supported on the tension stay about a pivot axis disposed between both ends of the hydraulic device. It's advantageous.

The invention will now be explained with reference to the illustrated embodiment.

Crane post lower part 2 and crane post upper part (3, 4)
) on a crane post (2,3° 4), a boom 1 is supported so as to be pivotable about a horizontal undulation pivot axis 5 provided in the lower part 2 of the crane post. The upper part of the crane post mainly consists of a pressure stay 4 on the side of the seam 1 and a tension stay 3 on the opposite side.

Both stays 5, 4 are hinged to each other by a horizontal upper pivot 6 and are attached to the lower part of the crane post 2.
It is pivotably supported by lower pivot axes 7, 8 parallel to the hoisting pivot axis 5. Further, the crane post is supported so as to be able to rotate around a vertical rotation axis 9, as in the past, and the up-and-down movement of the boom 1 is controlled by a rope hoisting device 20, which is connected to a tosozoro roller 1 at the tip of the crane post.
0. A composite rope 11, a boom spatula t' is carried out via an alseam rope roller 12 and a load suspension rope 21.

Raising movement of the boom and the upper part of the crane post (3, 4)
For the hoisting movement of the crane, a hydraulic system in the form of a reciprocating piston-cylinder unit with a cylinder 13 and a piston rod 14 is provided, which hydraulic system rotates around a pivot axis 15 provided at the top of the crane post. It is pivotably supported on the tensile force receiving side of the tensile stay 3 on the side opposite to the boom 1 side of the upper part of the post. 1
It is set at 7. During the up-and-down movement, the swing arm 17 is locked to the boom l.

In order to switch from the boom hoisting operation to the post upper folding operation, the lock of the hydraulic system's hoisting pivot point 16 to the boom 1 is released L1, and the shaft 18 of the swing arm 17 with the hoisting pivot point 16 provided at the seam 1 By turning approximately 180 degrees around , the position of the undulation pivot point 16 can be shifted toward or away from the post lower part 2. The cylinder 13 of the hydraulic system is supported in its central region on the tensile stay 3 so as to be pivotable about a pivot axis 15 .

With this configuration, the total length of the linear hydraulic system is relatively short (
- In this case, the hydraulic system can be used by switching from raising and lowering the boom to bending operation for lowering and raising the upper part of the crane post. The upper part of the crane post, on the side that receives pressure during cargo handling operations, is telescopically telescoping. Moreover, when the upper part of the crane post is tilted to the side opposite to the boom 1, it can be easily pulled out. Removal or hydraulic fixation of the anti-pressure stay is not required in this case.

The tensile stay 3 is slightly bent in some parts, and the composite teak rope 11 is perfectly stretched over the lower part of the post 2 so that it can be laid down flat on the deck, and at the tip of the boom that is laid down on the opposite side. It is supported, as if connected in a suspended state.

The seam l is a bifurcated part 1 surrounding the lower part 2 of the post for bearing.
9, and the bearing part of the hoisting rotation axis 5 is located at the lower part of the post 2.
Does not stand out from the outside. The boom l is supported by a rope hoisting device 20 on the deck. The swing arm 17 and its bearing portion are provided inside the bifurcated portion 19. Thereby, the hydraulic system can, in a very simple manner, apply a tilting moment until the upper part of the crane post is completely brought down, and also apply the moment necessary to raise the upper part of the crane post again. Upper pivot axis 6
The bearing portion protrudes from the side surface of the tensile stay 3 on the boom l side, and the amount of this protrusion is selected to be such that the anti-pressure stay cow can come into close contact with the tensile stay 3 when it is knocked down.

The bearing portion for the pivot shaft 15 in the cylinder 13 of the hydraulic system protrudes from the side surface of the tensile stay 3 on the boom side.
The hydraulic system may be selected so that it can fit tightly onto the lower part of the lowered tension stay or crane post.

With such a configuration, the height of the collapsed boom and the upper part of the crane post in the collapsed position can be reduced to a satisfactory level. To ensure transmission, the lower pivot 7 of the tension stay 3 is arranged as low as possible outside the lower part of the crane post 2. The upper pivot 6 is arranged approximately at the bend of the tension stay 3. and the pivot axis 15 of the hydraulic system is located between the upper pivot axis 6 and the lower pivot axis 7 of the tensile stay 3 in relation to the travel distance required for the luffing movement. It is located almost in the center.

The hoisting pivot point 16 is displaced, after approximately 180 degrees of rotation of the pivot arm 17, close to the 7th ring of the hydraulic system and then mechanically, for example by hand, over the pivot point 2 of the post lower part 2.
It is pushed down until it reaches the top. The position of the undulating pivot point 16 can be fixed by the post lower part 2, and the undulating pivot point 16 is located at approximately the same height as the pivot axis 15 after the upper part of the post is folded down.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a plan view of the crane of FIG. 1 with the boom in the retracted position and the upper part of the crane post at the retracted position VC$. DESCRIPTION OF SYMBOLS 1...Boom, 2...Lower portion of crane post, 3.Tension stay, cow...anti-pressure switch, 5...Luffing rotation shaft, 6. Rotation shaft, 711. Pivot axis, 8. Rotating axis, 9...
Vertical rotation axis, 10.Top roller, 11.Composite cheek rope, 12.Boom low roller, 13.
...Cylinder, 14...Piston rod, 15...
Rotation axis, 16... Lifting rotation point, 17. Swivel arm, 1
8... Axis, 19... Bifurcated part, 20... Rope hoisting device, 21... Load suspension rope, H... Height at reclined position Procedure amendment (method) March 27, 1985 Dear Commissioner of the Japan Patent Office, 1. Matter ('l) Patent Application No. 230, 51 of 1982
0 No. 2, Name of the invention: Clay for vessels navigating the canal / 3. Relationship with the case of the person making the amendment Name: Polst Predemier 4. Agent 6. Subject of the amendment

Claims (1)

[Scope of Claims] 1. A crane, comprising a crane post that is rotatable about a vertical pivot axis and that includes a lower part and an upper part;
In a type of crane having a hydraulic system for raising and lowering the boom of the crane and for raising and lowering the upper part of the crane post and for raising and lowering the upper part of the foldable crane post, the boom (1) and the upper part of the crane post (3 and 4) are A crane characterized by being configured so that it can be tilted to opposite sides. 2 The hydraulic system (13, 14) is connected to the upper part of the crane post (3
The crane according to claim 1, wherein the crane is configured to be able to operate on a reverse course for lowering and raising the crane. 3. The hydraulic system (13, 14) is attached to the upper part of the crane post (3)
, '4. ) to the horizontal pivot axis (15).
FT massage? 1.1 The crane according to claim 1 or 2. The crane according to claim 3. 5. The crane according to claim 4, wherein the anti-pressure stay (4) of the hydraulic system (13, 14) is extendable and retractable. 6. Any one of claims 1 to 5, in which the position of the undulation turning point (16) of the hydraulic system (13, 14) can be shifted toward the lower part of the crane post (2).
Crane mentioned in section. 7, the starting turning point (16) of the hydraulic system (13', 14)
7. Crane according to claim 6, wherein the hydraulic device (13.14) has a pivoting arm (17) for shifting the position of the crane. 8. The hydraulic system (13, 14) is installed at the top of the crane post (
3, 4) is supported on the non-extendable tensile stay (3).
The crane described in paragraph or paragraph 8. 10. A patent in which a hydraulic device (13, 14) configured as a reciprocating piston drive device is rotatably supported on a pivot shaft (15) provided at the crane boss + upper part, located between both ends of the hydraulic device (13, 14). A crane according to any one of claims 3 to 9.