JPS6023288A - Compact pedestal fitting crane - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to pedestal mounted cranes, and more particularly to cranes commonly referred to as offshore hydraulic cranes.

Essentially, the present invention arranges the necessary components of a multi-pedestal hydraulic crane to advantageously utilize the space on the offshore Bratbohm, and facilitates maintenance, repair, or replacement of the components that make up the crane. This allows the crane to be used safely and efficiently.

The present invention will now be described in detail with reference to the accompanying drawings, which illustrate preferred embodiments of the invention.

Entirely indicated by the reference numeral 1021. The upper part of the crane is attached so that it can swing.

That is, a vertical shaft 11C is mounted on a pedestal 12 supported on the deck of an offshore platform by a rotary table 14.
It is attached so that it can rotate around /J. The rotary table 14 is mounted on a frame 16 having a front edge 18.1. and supports the frame 16. Winch frame 20 has front edge 1
8 and extending at right angles, their lateral centers are positioned to coincide with the vertical ttl+11, and extend over substantially the entire length of the frame 16. Winch frame 20 has front edge 1
It is pinned to the front end of the frame 16 at a position indicated by the reference numeral 22 in the vicinity of 8, and to a pair of vertical links 26 at a position indicated by the reference numeral 24. I'm here. In addition, vertical link 2
6 is pinned to frame 16 at the position indicated by reference numeral 27I.

Driven by hydraulic motor 30? A main winch 28 is housed on the winch frame 2o.An auxiliary winch 34 driven by a hydraulic motor 34 and a boom hoist winch 36 driven by a hydraulic motor 38 are also mounted on the winch frame 2o. The engine 40 is mounted on the frame 16 on the winch frame 20, and the longitudinal axis of the engine 40, that is, the centerline of the crankshaft is located at the front edge 18. The radiator 42 of the engine is located approximately below the vertical song 26, and has the same caliber at right angles to the vertical axis 11. A pump 44 having a pump 44 is connected to the engine 40 and is driven by the engine 40.

Note that the pump 44 is arranged on the engine 40 on the opposite side from the radiator 42.

A narrow passageway 46 that is U-shaped in plan view.
surrounds three sides of the frame 16 and is supported from the frame 16 in a cantilevered manner. A fuel tank 48 is suspended below the narrow passageway 42 opposite the front edge 18 and supplies fuel for use by the engine 40. The oil reservoir 50 is disposed in the narrow passageway 46Q, and its front throat is substantially aligned with the front edge 18. Driver's cabin 5
2 is located at the other end of the U-shaped passageway 46, and the driver's cabin 52 extends outward beyond the front edge 18 so that the driver has a clear view of the outside in both the downward and left-right directions. It stands out. The side passage 54 is arranged outside and beside the driver's cabin 52, and is connected to the U-shaped passage 46.
Therefore, the driver can freely enter and exit the driver's room 52.

The A-shaped canto, designated in its entirety by the reference numeral 56, is designated by the reference numeral 60. A pair of sloping leg members 58 are pinned to the brackets 1- on the winch frame 20 in the position shown in FIG. A pair of vertical leg members 62 that are pinned together.
It is equipped with The bin 64 is positioned in a vertically raised position by the pin 24. blanket 66
is fixed to the upper end of the leg member 58, and a pin 68 attaches the leg member 62 to the bracket 66. A suspension ring 70 having a double row of sheave boos is pivotally mounted between the left and right brackets 1-660 by pins 72.1.
ing. A splint 14 with a double row of sheave pulleys is attached to the top of the boom 76 via pentane l-78r. A wire rope 80 is stretched between the sheaves of the hoist 70 and the sheaves of the splint 74 and is wound over the boom hoist winch 36. The bottom of the boom 76 has a frame 16 that can pivot.

Wire rope 8 wrapped around auxiliary winch 32
2 extends beyond the sheave carried on the boom top extension 84 and has a hook 86 attached to the wire rope 8Z.
It is attached to the end of the A wire rope 88 wrapped on the winch 28 is stretched f'L over the boot carried on the top of the boom and supports the hook block 9o.

Since the driver's cabin 52 is located at a position that protrudes from the front edge 18 of the frame 16,
The driver can secure a wide field of view between the downward and left and right lateral forces, and this wide field of view is especially important when carrying out cargo handling operations on ships such as offshore Blattbohm. That's true.

Since the oil storage tank is located at the edge of the narrow passage 4G, it can be easily accessed for maintenance work, and at a height that can apply a sufficiently large pushing static pressure to the inlet of the pump 44. It can be installed in Winches 28, 32 and 36 should be mounted as low as possible.
%, and Yθ is installed on both sides of the winch so that it can be approached relatively easily in consideration of maintenance work, etc.
There is a narrow passageway extending there. The engine 40 is mounted below the winch frame 20 to minimize the space required for installation and also to allow the engine to be mounted as shown by arrow 92 in FIG.
In order to be able to minimize the swinging movement of the tail, which is represented by the circular arc, it extends in the front-rear direction.

KV, drawn by the front of the crane in the vicinity of the boom indicated by the arc drawn by arrow 94 in FIG.
The trajectory of the maximum swing motion is larger than the trajectory of the rear swing motion. In either case, the trajectory of the maximum swing movement is drawn at a position immediately adjacent to the driver, making it easy to visually check whether the driver is approaching nearby structures or machines. can. If you rub Z to make it easier to fill with fuel, there will be no leakage.
In order to prevent the fuel from flowing into the engine or hydraulic components that are still warm, the fuel tank 48 is
is attached to the bottom of the rear of the crenin.

Having illustrated one embodiment of the present invention and described it in detail,
It goes without saying that the present invention may not be modified or modified as appropriate without departing from the spirit and scope of the present invention, which is limited by the scope of the claims.

[Brief explanation of the drawing]

FIG. 1 is an I+10 elevation view of a crane according to the present invention. FIG. 2 is a plan view of a portion of the crane shown in FIG. 1, viewed from two sides. Figure 3 is shown in Figure 432.
．． Elevation view 1 of a part of the crane that is visible from the front
．．・ 1O... Upper part of the crane 12... Platform J seat 14...
・Rotating chiffle 16... Frame 20... Wiener frame 28... Main winch 32...
...Auxiliary winch 36. Boom hoist winch 40...Engine 44...Pump 46...Narrow passage 48...Fuel tank 50...Oil storage tank
52... Driver's room procedure amendment statement August 2, 1980 Director General of the Patent Office 1 Indication of the matter 1989 Patent Application No. 133452 2 Name of the invention Combaku] - Number of pedestals (-1 Crane 3 Person making the amendment A'1 Relationship Patent applicant name FMC] - Boration 4 Agent address Phase U 10 Building, 1-11-28 Ei 11-cho, Chiyo 01-ku, Tokyo Dink 8th floor Phone 581-9371
Name (8821) Benri Chisei FJ1 Tetsube jl-;,
1','-knee・1;・・）5? 1i day of positive command” (・ □ ) Showa year month
Date ゛-16 Subject of amendment

Claims (1)

[Claims] (1.1 A compact pedestal-mounted crane, comprising a frame that limits the swinging axis of the crane, which is equipped with a rotary table to be attached to the pedestal, and a frame that can be mounted on the frame. 2', with a gantt installed on the MiJ axis and an Al1 end)]/
- a plurality of hydraulically driven winches mounted on the frame below the country; a plurality of hydraulically driven winches mounted on the frame below the country;
and an engine installed in the winch so that the longitudinal axes are substantially aligned when canting, and the winch is driven by the engine and applies hydraulic pressure to the winch. A crane comprising a hydraulic pump for supplying the crane. (2) The crane is further fixed to said frame and made into a substantially U-shaped V-shaped profile extending around said gantry 71. The crane according to claim 1, characterized in that the crane is equipped with a narrow passageway WJ that has a narrow width. (3) This crane is further supported on a frame, and an oil storage tank is located at the bottom of the leg member of the narrow passage having the U-shape. 1
3. The crane according to claim 2, wherein the crane is constructed of a crane. (4) This tower 77'J3 is further supported on the front frame and is attached to the other end of the leg member of the narrow passage having the U-shape (; 1. The crane according to claim 3, characterized in that it is equipped with a driver's cabin.