KR20170000771U - Heavy object lifting device - Google Patents

Heavy object lifting device Download PDF

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Publication number
KR20170000771U
KR20170000771U KR2020150005596U KR20150005596U KR20170000771U KR 20170000771 U KR20170000771 U KR 20170000771U KR 2020150005596 U KR2020150005596 U KR 2020150005596U KR 20150005596 U KR20150005596 U KR 20150005596U KR 20170000771 U KR20170000771 U KR 20170000771U
Authority
KR
South Korea
Prior art keywords
sheave
pulley
fixed
wire
fixed sheave
Prior art date
Application number
KR2020150005596U
Other languages
Korean (ko)
Inventor
배귀평
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR2020150005596U priority Critical patent/KR20170000771U/en
Publication of KR20170000771U publication Critical patent/KR20170000771U/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack

Abstract

The present invention relates to a heavy lifting device. A heavy lifting device according to an embodiment of the present invention comprises a plurality of fixed sheaves arranged on a body portion via wires, arranged in a ring shape, and provided so that the axial direction of the fixed sheave is parallel to the circumferential direction of the ring, And can be prevented from being detached from the fixed sheave.

Description

{HEAVY OBJECT LIFTING DEVICE}

The present invention relates to a lifting device capable of lifting a heavy object stably.

In the field where large structures such as shipyard and plant are built, there are many cases where large and heavy heavy materials are lifted for assembly of structures. For example, when building a ship, blocks are built and then assembled to match the shape of the hull. In this process, large blocks are lifted and then moved to the assembly position There are many.

It is necessary to keep the balance, angle, and height of the block precisely. Therefore, in such a site, a heavy lifting device is used which can distribute the load of the heavy lifting body while mediating the connection between the crane and the heavy lifting body, and can accurately maintain the balance and angle of the lifting heavy body. Such a device is also referred to as a block loader because it is mainly used for lifting and moving a large block in a shipyard or the like.

Such a lifting device for lifting heavy objects has a structure in which the length of a wire rope connecting a plurality of fixed pulleys to a plurality of moving sheaves is set to be shorter than a length of the hoisting ropes when a crane is lifted in a state where each part of a heavy object is connected to a ring portion of a plurality of moving sheaves The height of each moving sheave can be appropriately adjusted while being adjusted to be long or short according to the shape of the object, so that the load can be uniformly distributed to each connecting portion of the heavy object to be lifted. Thus, the weight can be balanced and maintained reliably.

Fig. 1 is a view showing a general heavy lifting device 1. Fig. 1, a lifting device 1 generally comprises a body portion 2 provided in a rectangular shape when viewed from above, an axial direction provided perpendicularly to the longitudinal direction of the body portion 2, A movable sheave 4 provided on the lower portion of the fixed sheaves 3 and a fixed sheave 3 and a wire 5 passing through the movable sheave 4 to wind the movable sheave 4. In this case, when the moving pulley 4 is extended beyond the predetermined angle in the outer direction of the body portion 2 perpendicular to the longitudinal direction of the body portion 2 depending on the shape of the connected heavy object, And the like.

The present invention is intended to provide a lifting device capable of preventing the wire from being detached from the fixed sheave.

In addition, the present invention is intended to provide a lifting device capable of lifting a heavy object stably.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and the matters not mentioned in the present specification can be clearly understood by those skilled in the art to which the present invention belongs will be.

The present invention provides a heavy lifting device. The heavy lifting device according to one embodiment of the present invention includes a body portion lifted by lifting means; A mobile sheave having a claw for connection of the object to be lifted; And a fixed pulley mounted on the body portion; A wire passing through the fixed sheave and winding the moving sheave; And a length adjusting unit for adjusting the length of the wire between the fixed sheave and the moving sheave, wherein the plurality of pulley units are arranged so as to be combined with each other to form a ring.

The fixed sheave is installed such that the axial direction thereof is parallel to the circumferential direction of the ring, and the movable sheave is disposed at a lower portion of the fixed sheave so that the axial direction is parallel to the circumferential direction of the ring.

The body portion is provided in a cylindrical or annular shape, and the fixed sheave is provided in an edge region of the body portion.

Wherein each of said fixed pulleys includes a first fixed sheave and a second fixed sheave arranged along a radial direction of said ring to each other, said second fixed sheave being positioned outside said ring than said first fixed sheave, The wire sequentially passes through the first fixed sheave, the movable sheave, and the second fixed sheave.

The wire is introduced into the first fixed sheave of any one of the pulley units and flows out of the second fixed sheave of one of the pulley units.

And a wire flowing out from the second fixed shear flows into the first fixed sheave of the adjacent one of the pulley units.

The pulley unit further includes a first auxiliary pulley and a second auxiliary pulley, the axial direction of each of which is perpendicular to the circumferential and radial directions of the ring, wherein the first auxiliary pulley is configured to receive the wire of the first fixed pulley And the second auxiliary sheave is positioned adjacent to an upper portion of a side surface of the second fixed sheave in a direction in which the wire flows out of the second fixed sheave, After passing through the first auxiliary pulley to wind the first auxiliary pulley and to wind the second auxiliary pulley before being introduced into the second pulley.

When the body portion is provided in an annular shape, a cross-shaped reinforcing member is provided on the inner surface of the body portion as viewed from above.

The heavy lifting device according to one embodiment of the present invention can prevent the wire from being detached from the fixed sheave.

In addition, the heavy lifting device according to one embodiment of the present invention can reliably lift a heavy object.

1 is a view showing a general lifting device.
2 is a perspective view showing a lifting device according to an embodiment of the present invention.
3 is a bottom view of the lifting device of FIG.
Fig. 4 is a perspective view showing the pulley unit of Fig. 2;

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more fully describe the present invention to those skilled in the art. Thus, the shape of the elements in the figures has been exaggerated to emphasize a clearer description.

The heavy lifting device according to the embodiment of the present invention is a device for lifting a heavy and heavy heavy object for assembling a structure at a site where a large structure such as a shipyard or a plant is dried. 2 is a perspective view showing a lifting device 10 according to an embodiment of the present invention. 3 is a bottom view of the lifting device 10 of FIG. 4 is a perspective view showing the pulley unit 200 of FIG. In Fig. 3, for convenience of explanation, the moving pulley and the portion of winding the moving sheave of the wire are omitted. 2 to 4, the lifting device 10 includes a body 100, a pulley unit 200, a wire 300, and a length adjusting unit 400.

The body portion 100 is lifted by the lifting means. For example, a plurality of lugs 110 are provided on the upper portion of the body part 100. [ Coupling rings of lifting means are connected to some or all of the plurality of lugs (110). The body unit 100 is provided with a pulley unit 200. The body portion 100 may be provided in a cylindrical shape or an annular shape. When the body part 100 is provided in an annular shape, a hollow penetrating through the body part 100 in a vertical direction is formed in a central area of the body part 100 as viewed from above. Therefore, the weight of the body portion 100 itself can be reduced. In this case, a cross-shaped reinforcing member 130 is provided on the inner side surface of the body part 100 as seen from above, thereby preventing the body part 100 from being deformed from external force by the hollow . Alternatively, the body portion 100 may be provided in various forms that allow the pulley units 200 to be installed by maintaining the arrangement of the pulley units 200 to be described later.

The pulley unit 200 is provided so as to disperse the weight of the lifting object weight and uniformly adjust the height of the moving sheave 210 to which the object to be lifted is connected to each other. The pulley unit (200) includes a moving pulley (210) and a fixed pulley (220). A plurality of pulley units (200) are arranged so as to be combined with each other to form a ring.

The moving pulley 210 has a hook 211 for connection of the lifting object. The moving sheave 210 is installed such that the axial direction thereof is parallel to the circumferential direction of the ring formed by the plurality of pulley units 200. The moving pulley 210 is disposed at the lower portion of the fixed pulley 220.

The fixed pulley 220 is installed on the body 100. The fixed pulley 220 is installed so that its axial direction is parallel to the circumferential direction of the ring formed by the plurality of pulley units 200. Accordingly, when the body part 100 is provided in a cylindrical shape or an annular shape, the fixed sheave 220 is installed in the edge area of the body part 100. According to one embodiment, each fixed pulley 220 includes a first fixed pulley 221 and a second fixed pulley 222. The first fixed sheave 221 and the second fixed sheave 222 are arranged along the radial direction of the ring formed by the plurality of pulley units 200. The second fixed pulley 222 is located outside the ring of the plurality of pulley units 200 rather than the first fixed pulley 221.

The pulley unit 200 may further include a first auxiliary pulley 230 and a second auxiliary pulley 240. The first auxiliary pulley 230 and the second auxiliary pulley 240 are connected to each other by a wire 300 flowing out from the second fixed pulley 222 of any one of the plurality of pulley units 200, The wire 300 is guided by a guide to prevent the wire 300 from flowing out of the first fixed sheave 221 and the second fixed sheave 222 when flowing into the first fixed sheave 221 of the first fixed sheave 221, ) do. For example, the first auxiliary pulley 230 and the second auxiliary pulley 240 are provided so that their axial directions are perpendicular to the circumferential and radial directions of the ring formed by the plurality of pulley units 200, respectively. The first auxiliary sheave 230 is positioned adjacent to an upper portion of a side surface of the first fixed sheave 221 in the direction in which the wire 300 flows. The second auxiliary pulley 240 is positioned adjacent to the upper portion of the side surface of the second fixed sheave 222 in the direction in which the wire 300 flows out. The wire 300 that has flowed out of the second fixed sheave 222 is passed through the first auxiliary sheave 230 and the second auxiliary sheave 240 to the first fixed sheave 221 of the adjacent pulley unit 200 The direction is changed so as to be easy to flow into.

The wire 300 passes through the fixed pulley 220 and the movable pulley 210 to wind it. According to one embodiment, the wire 300 sequentially passes through the first fixed sheave 221, the moving sheave 210, and the second fixed sheave 222. [ In this case, the wire 300 flows into the upper portion of one of the first fixed pulleys 221 of the plurality of pulley units 200 and flows out from the upper portion of the second fixed pulley 222 of the same pulley unit 200 do. The wire 300 flowing out of the second fixed sheave 222 flows into the first fixed sheave 221 of the adjacent pulley unit 200. [ When the pulley unit 200 further includes the first auxiliary pulley 230 and the second auxiliary pulley 240, the wire 300 is wound around the first auxiliary pulley 221 after flowing out of the first fixed pulley 221 And passes through the second auxiliary pulley 240 before it is introduced into the second fixed pulley 222.

The length adjusting unit 400 adjusts the length of the wire between the fixed sheave 220 and the moving sheave 210. [ For example, both ends of the fixed pulley 220 of the pulley unit 200 and the wire 300 wound around the movable pulley 210 are connected to a winch provided in the length adjustment unit 400, The length of the wire between the fixed pulley 220 and the moving pulley 210 can be adjusted by winding or unwinding by the action of a wrench. Alternatively, one end of the wire 300 may be fixed to the body 100, and the other end may be connected to a winch of the length adjusting unit 400.

The plurality of pulley units 200 are arranged in a ring shape and the axial direction of the first fixed pulley 221 and the second fixed pulley 222 is the circumferential direction of the ring Direction so that the wire 300 wound on the fixed sheave 220 does not excessively deviate from the circumferential direction of the fixed sheave 220. In this case, The weight lifting device 10 according to the embodiment of the present invention can prevent the wire 300 from being detached from the fixed sheave 220. In addition, Therefore, the lifting device 10 can reliably lift the heavy object.

10: heavy lifting device 100: body part
200: pulley unit 210: moving pulley
220: fixed pulley 221: first fixed pulley
222: second fixed pulley 230: first auxiliary pulley
240: second auxiliary pulley 300: wire
400: Length adjusting unit

Claims (5)

A body portion which is lifted by a lifting means;
A mobile sheave having a claw for connection of the object to be lifted; And a fixed pulley mounted on the body portion;
A wire passing through the fixed sheave and winding the moving sheave; And
And a length adjusting unit for adjusting the length of the wire between the fixed sheave and the moving sheave,
Wherein the pulley unit is arranged so that a plurality of pulleys are combined with each other to form a ring. The method according to claim 1,
The fixed pulley is provided so that its axial direction is parallel to the circumferential direction of the ring,
Wherein the moving pulley is disposed at a lower portion of the fixed sheave so that the axial direction is parallel to the circumferential direction of the ring. The method according to claim 1,
Each of said fixed pulleys comprises a first fixed sheave and a second fixed sheave arranged along a radial direction of said ring to each other,
Wherein the second fixed sheave is located outside the ring than the first fixed sheave,
Wherein the wire is sequentially passed through the first fixed sheave, the movable sheave, and the second fixed sheave. The method of claim 3,
The wire is introduced into the first fixed sheave of any one of the pulley units and flows out of the second fixed sheave of the one of the pulley units,
Wherein the wire outflowed from the second fixed shear flows into the first fixed sheave of another adjacent pulley unit. 5. The method of claim 4,
Wherein the pulley unit further comprises a first auxiliary pulley and a second auxiliary pulley, the axial direction of each of which is perpendicular to the circumferential and radial directions of the ring,
The first auxiliary sheave is positioned adjacent to an upper portion of a side surface of the first fixed sheave in a direction in which the wire is introduced,
The second auxiliary pulley is positioned adjacent to an upper portion of a side surface of the second fixed sheave in a direction in which the wire flows out,
The wire passing through the first fixed sheave after winding the first auxiliary sheave and passing through the second auxiliary sheave before winding into the second sheave.
KR2020150005596U 2015-08-21 2015-08-21 Heavy object lifting device KR20170000771U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150005596U KR20170000771U (en) 2015-08-21 2015-08-21 Heavy object lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150005596U KR20170000771U (en) 2015-08-21 2015-08-21 Heavy object lifting device

Publications (1)

Publication Number Publication Date
KR20170000771U true KR20170000771U (en) 2017-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020150005596U KR20170000771U (en) 2015-08-21 2015-08-21 Heavy object lifting device

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KR (1) KR20170000771U (en)

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