KR20110077345A - Overhead crane - Google Patents

Abstract

PURPOSE: An overhead crane is provided to improve work efficiency and convenience by performing work in various places and wide ranges out of the fixed working range of the existing fixed rail. CONSTITUTION: An overhead crane includes a worktable(3) installed to a conveyor(1) moving along on a fixed rail(7) to swing by a swing device(2), a boom(5) installed to the worktable to be expanded and contracted by a telescopic device(4), and a hoist(6) installed to the boom to extend a working range to the turning radius of the worktable and the expansion range of the boom.

Description

Ceiling crane {OVERHEAD CRANE}

The present invention relates to a ceiling crane, and more particularly, to a ceiling crane having improved work efficiency and convenience by allowing work in a wider working range and various positions beyond the working range of a rail fixed to the ceiling.

    In general, cranes for transporting heavy materials in the vertical direction or horizontal direction are classified into top crane, ceiling crane, jib crane, etc. according to their function and shape.In particular, they are installed in a ship engine room to install and manage (maintenance, maintenance) of engines. The ship engine room crane used for the construction consists of a trolley and hoist device that moves the pallet and the pallet along the rail like a normal ceiling crane.

    These ceiling cranes are installed to move the carriage along the rail of the ceiling and can only work within a fixed range on the rail, the work range is narrow and could not be performed in a variety of positions off the rail.

    In particular, in the case of a crane in a ship engine room, as in FIG. 6, when the deck is formed in an inclined structure, the fixed rail may not be installed between all the upper parts of the engine in consideration of the lifting height. More narrow CRANE SERVICE AREAs made it impossible for MAINTENANCE of some sections of the engine.

    The following describes the prior art related to the existing crane crane and the ship engine room.

In Publication No. 10-2005-0003807, the drive shaft is rotated by the upper drive motor of the crane body and the gear shaft is formed on the outer circumferential surface, the bearing portion is pivotally engaged to interlock with the drive shaft outer circumferential surface, integrally to the lower side of the bearing portion The crane hook coupled to lift the heavy weight and the fall prevention means provided on one side of the crane hook to prevent the fall of heavy weight prevents the swing of the crane hook during the movement of the crane and prevents the heavy weight from falling. Published.

10-2005-0111933 discloses a wire drum connected to a reducer of a hoisting motor and a sheave connected to a wire rope to rotate, a hook portion connected to the sheave and a wire rope to lift a heavy object, and the sheave is inside It is composed of a sieve bib and a trolley frame supported by the sieve bib, and the trolley frame includes a transverse wheel for moving the trolley frame, a transverse motor, and a guide part, and a plurality of parts are detachably fastened, lightweight, and miniaturized. Ceiling cranes having the advantage of being disclosed.

In Korean Patent Publication No. 10-0891469, jibs which form a plurality of joints are connected to a jib post, and the jibs are provided with automatic rotating means controlled by a controller to rotate them, respectively, and among the plurality of jibs. At the end of the outer jib is an articulated electric jib crane provided with a hoist to lift and lift a heavy object.

Utility Model Publication No. 20-1983-0001004, a carriage arranged to move along a set of longitudinal tracks on a beam supporting a deck, and a set of transverse tracks belonging to the carriage. A crane installation for a ship engine room is disclosed that comprises a trolley configured to move along a hoisting device, and a hoisting device mounted to the trolley and lifting device capable of being raised and lowered by a lifting cable.

Existing ceiling cranes, including the cranes in the lathe engine room, work along the fixed rails of the ceiling, narrowing the scope of work and unable to work outside the positions of the fixed rails.

Therefore, in the present invention, by installing a swing device (SWING DEVICE) on the carriage moving along the stationary rail installed on the ceiling to rotate the workbench and to install the boom to the telescopic workbench by installing a hoist to the existing fixed rail It is to provide a ceiling crane that can work in a wider range of locations and a wider range beyond the fixed working range.

The present invention for solving the above problems;

According to the invention described in [claim 1]; In the overhead crane provided with a hoist on a carriage moving along a stationary rail, the crane is installed on a platform moving along the stationary rail so that a work platform can be rotated by a swing device. It is characterized in that it is possible to extend the working range to the rotation radius of the workbench and the extension working range of the boom by installing a boom that is telescopically operated by a telescopic device and a hoist installed on the boom.

According to the invention described in [claim 2]; According to claim 1, The swing device; A pinion driven to the swing motor is installed on the transport target, and a slewing ring bearing is formed on the worktable to rotate the swing bearing by the pinion to rotate the worktable about the carrier. There is this.

According to the invention described in [claim 3]; According to claim 1, The stretching device; The boom is coupled to one side of the worktable so as to be movable in the axial direction, and a rack is formed on the boom so that the boom can be extended and operated by linearly reciprocating operation with the pinion of the drive motor installed on the arm. have.

The present invention installs a hoist with a swing device and a telescopic device on a moving object moving along a fixed rail, so that crane work can be performed at various positions and extended ranges beyond the existing working range of the fixed rail, and from this, the speed and efficiency of the work can be achieved. Can greatly improve work efficiency and work convenience,

In particular, when the deck structure is applied to the ship's engine room with inclined structure, the worktable can be rotated and the boom can be extended to work even in the section where the carrier cannot run, so the maintenance of engine bulbs is possible. Can provide.

The present invention is installed so that the worktable can be rotated by a swing device (SWING DEVICE) on the carriage moving along the fixed rail and the hoist is installed on the telescopic working boom to move away from the fixed position of the fixed rail It is composed of a ceiling crane that can work by expanding the working range with the rotation radius and the telescopic working range of the boom.

That is, the present invention is to install the workbench with a swing device (SWING DEVICE) on the carriage installed on the fixed rail so that the workbench of the transport target moving along the fixed rail is swing-operated by the swing device and to the carriage by the swing device. The installed worktable is equipped with a telescopic boom as a telescopic device, and the hoist (HOIST) is connected to the boom and the rotation range of the worktable that rotates on the moving object moving along the fixed rail and the telescopic boom as a working platform The working range is extended to the working range.

Hereinafter, the specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing the configuration of the present invention, Figure 2 is a plan view showing the configuration of the present invention, Figure 3 is an enlarged view of the main portion showing the configuration of the swivel device of the present invention, Figure 4 is a stretcher of the boom in the present invention The enlarged main part shown, FIG. 5 is an operational state diagram which installed this invention in the ship engine room.

The platform 1 installed on the fixed rail 7 is provided with a work platform 3 by a swing device 2. The worktable 3 is installed under the carriage 1 moving along the fixed rail 7 so as to swing by the swing device 2 on the carriage 1.

The swing device 2 has a swing motor 21 and a pinion 22 driven to the swing motor 21 on the carriage 1 to form a swing bearing 23 formed on the work table 3. By rotating the swing bearing 23 by the drive of the pinion 22 connected to the swing motor 21 to enable the swing platform (3) to swing around the carriage (1).

The swing device (2) is to fully drive the worktable (3) to 360 ° according to the working purpose and use of the crane and the working environment and structure in which the crane is installed, or fully rotated to 360 ° by using a limit switch, etc. Rather, it can be configured to rotate within a limited rotation range with some limited rotation range.

In addition, the swing device 2 may be implemented by various various swing devices, such as a ring gear or the like.

The work platform 3 installed on the pallet 1 as the swing device 2 is installed as a telescopic device 4 so that the boom 5 can be telescopically operated and the hoist 6 is mounted on the boom 5. Install it. An arm 31 is formed on one side of the work platform 3 installed on the pallet 1 by the swing device 2, and the boom 5 is telescopically installed by the stretching device 4 on the arm 31. .

The expansion and contraction apparatus 4 is coupled to the boom 5 so as to be movable in the axial direction inside one arm 31 of the work table 3, and the boom 5 is a boom 5 as shown in the example shown in FIG. A rack 43 is formed on the side and a pinion 42 driven by the drive motor 41 is formed on the arm 31 to slide the pinion 42 of the arm 31 and the rack 43 of the boom 5. The boom 5 is telescopically moved from the arm 31 by moving the boom 5 coupled to the rack 43 left and right in the axial direction by driving the pinion 42.

Meanwhile, a hoist 6 is installed at the end of the boom 5, and the hoist 6 is a hoisting winch 61 and a hook block 62 installed on the worktable 3. Connect with cable and install.

According to the present invention of the above configuration, the worktable 3 installed on the carriage 1 as the swing device 2 is rotated, and the hoist 6 of the worktable 3 is telescopically operated by the stretching device 4. 5) the hoist 6 on the carriage 1, which is installed on the fixed rail 7, can be operated within the range of rotation of the worktable 3 and the telescopic working range of the boom 5, unlike in the past. You can work in several places.

In particular, the present invention, when installed and operated in the ship engine room of the deck structure (DECK) in the hull structure, even in the case of the section that the carriage (1) can not run to rotate the work table (3) or the rotation of the work table (3) By extending the working range by extending the boom (5) together, the operation is possible even in the section where the rail (7) is not installed, it is possible to maintain (MAINTENANCE) and the like throughout the engine room.

    The terms described in the detailed description and claims are used by the inventors to explain their invention in the best way, and the descriptions and claims as well as the entire description of the present invention including the drawings are consistent with the technical idea. It should be interpreted as meaning and concept, and it should not be limited to lexical meaning to obscure the meaning and concept of the terms used.

1 is a front view showing the configuration of the present invention

2 is a plan view showing the configuration of the present invention

Figure 3 is an enlarged view of the main portion showing the configuration of the swivel device of the present invention

Figure 4 is an enlarged view of the main portion showing the expansion device of the boom of the present invention

5 is an operational state diagram of the present invention installed in the ship engine room

6 is a configuration diagram of an existing ship engine room crane

☞ Explanation of the main symbols used in the main part of the drawing ☜

1: carrier

2: swing device

3: worktable

4: telescopic device (TELESCOPIC DEVICE)

5: arm

6: HOIST

7: FIXED RAIL

Claims (3)

In the overhead crane provided with a hoist on a carriage moving along a fixed rail, It is installed to rotate the worktable with a swing device (SWING DEVICE) on the carriage moving along the fixed rail, The workbench is installed on the workbench as a telescopic telescopic device installed, and the hoist is installed on the boom to extend the working range to the working radius of the workbench and the telescopic working range of the boom. According to claim 1, The swing device; A pinion driven to the swing motor is installed on the transport target, and a slewing ring bearing (23: Slewing ring bearing) is formed on the worktable to rotate the swing bearing by driving the pinion to rotate the worktable around the carrier. Ceiling crane, characterized in that. According to claim 1, The stretching device; The boom can be movably coupled to one arm of the work table, and the boom can be stretched by linearly reciprocating by the pinion of the drive motor installed on the arm by forming a rack. Overhead crane.

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