KR20160126543A - Crane apparatus - Google Patents

Crane apparatus Download PDF

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Publication number
KR20160126543A
KR20160126543A KR1020150057715A KR20150057715A KR20160126543A KR 20160126543 A KR20160126543 A KR 20160126543A KR 1020150057715 A KR1020150057715 A KR 1020150057715A KR 20150057715 A KR20150057715 A KR 20150057715A KR 20160126543 A KR20160126543 A KR 20160126543A
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KR
South Korea
Prior art keywords
steel plate
unit
vacuum adsorption
vacuum
magnet
Prior art date
Application number
KR1020150057715A
Other languages
Korean (ko)
Inventor
황병원
김형식
정규동
Original Assignee
현대제철 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 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020150057715A priority Critical patent/KR20160126543A/en
Publication of KR20160126543A publication Critical patent/KR20160126543A/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
    • B66C1/02—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 suction means
    • B66C1/0237—Multiple lifting units; More than one suction area
    • 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
    • B66C1/04—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 magnetic means
    • B66C1/06—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 magnetic means electromagnetic
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

An invention for a crane device is disclosed. The crane device of the present invention comprises: a lift body movably installed; A vacuum suction unit connected to the lift body and applying a vacuum suction force to the steel plate; And a magnet portion connected to the lift body so as to be spaced apart from the vacuum adsorption portion and applying a magnetic force to the steel plate.

Description

CRANE APPARATUS

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane device, and more particularly, to a crane device capable of preventing a steel plate from falling when being transported.

Generally, in steelworks, molten iron is manufactured from iron ore and transferred to steelmaking process. In the steelmaking process, steel sheets of various kinds or sizes are manufactured using molten iron. The manufactured steel sheet is loaded into a storage or a loading station by a crane. The crane classifies and loads the steel plate at a certain place according to the demand, type and size of the steel plate, and the like.

The background art of the present invention is disclosed in Laid-Open Publication No. 2013-0013559 (published on Mar. 02, 06, entitled "Ceiling Crane").

According to an embodiment of the present invention, there is provided a crane device capable of preventing a steel plate from falling when it is fed.

A crane device according to the present invention comprises: a lift body movably installed; A vacuum suction unit connected to the lift body and applying a vacuum suction force to the steel plate; And a magnet unit connected to the lift body so as to be spaced apart from the vacuum adsorption unit and applying a magnetic force to the steel plate.

The vacuum adsorption part and the magnet part may be alternately installed in the lift body.

The vacuum adsorption part may include a plurality of adsorption ports arranged perpendicularly to the longitudinal direction of the lift body.

The magnet unit may include a plurality of electromagnets arranged perpendicularly to the longitudinal direction of the lift body.

The vacuum adsorption part and the magnet part may be arranged in parallel with each other.

The vacuum adsorption unit and the magnet unit may be disposed at equal intervals.

Wherein the crane device is provided with a control section for controlling the operation of the vacuum adsorption section and the magnet section so that the vacuum adsorption section provides the vacuum adsorption force to the steel plate and the magnet section lifts the steel plate without providing a magnetic force to the steel plate, As shown in FIG.

The crane apparatus may further include a control unit for controlling the operation of the vacuum adsorption unit and the magnet unit to transfer the steel sheet in a state in which the vacuum adsorption unit and the magnet unit simultaneously provide a vacuum attraction force and a magnetic force to the steel plate .

According to the present invention, since the vacuum attraction force and the magnetic force are simultaneously applied to the steel strip when the steel strip is transported, it is possible to prevent the steel strip from falling off the crane device even when either the vacuum absorption portion or the magnet portion does not operate normally.

Further, according to the present invention, since the magnetic force of the magnet portion acts on the steel plate after the steel plate is raised by the vacuum attraction force, it is possible to prevent the two or more steel plates from being simultaneously raised by the magnetic force.

1 is a block diagram illustrating a crane apparatus according to an embodiment of the present invention.
2 is a rear view illustrating a vacuum adsorption unit and a magnet unit in a crane apparatus according to an embodiment of the present invention.
3 is an enlarged view of a vacuum adsorption unit and a magnet unit in a crane apparatus according to an embodiment of the present invention.
4 is a configuration diagram showing a crane apparatus according to an embodiment of the present invention in a descending state.
5 is a diagram showing a state in which a vacuum adsorption part of a crane device according to an embodiment of the present invention acts on a steel plate.
6 is a configuration diagram showing a state in which a crane apparatus according to an embodiment of the present invention lifts a steel plate by a vacuum adsorption force of a vacuum adsorption unit.
7 is a view showing a state in which a vacuum attraction force and a magnetic force are applied to a steel plate by driving a vacuum adsorption part and a magnet part in a crane device according to an embodiment of the present invention.
8 is a configuration diagram showing a state in which a crane apparatus according to an embodiment of the present invention transfers a steel sheet to a loading site.

Hereinafter, an embodiment of a crane apparatus according to the present invention will be described with reference to the accompanying drawings. In the course of describing the crane device, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

2 is a rear view illustrating a vacuum adsorption unit and a magnet unit in a crane apparatus according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of the crane unit according to one embodiment of the present invention. FIG. 4 is an enlarged view showing a vacuum adsorption unit and a magnet unit in a crane apparatus according to an embodiment of the present invention, and FIG. 4 is a diagram showing a state in which a crane apparatus is lowered according to an embodiment of the present invention.

Referring to FIGS. 1 to 4, a crane apparatus according to an embodiment of the present invention includes a lift body 110, a vacuum adsorption unit 120, and a magnet unit 130.

The lift body 110 is movably installed. For example, the lift body 110 is connected to a connecting member 113, such as a chain, so as to be movable in three axial directions (height direction, left-right direction and forward-backward direction in Fig. 1).

The vacuum adsorption unit 120 is connected to the lift body 110 and applies a vacuum attraction force to the steel plate 10 to lift the steel plate 10. At this time, a vacuum pump 125 is installed in the lift body 110, and a vacuum adsorption unit 120 is connected to the vacuum pump 125. The vacuum adsorption unit 120 includes an adsorption unit body 121 connected to the lift body 110, a vacuum flow path unit 122 installed to pass through the adsorption unit body 121 and connected to the vacuum pump 125, And a suction port 123 which is disposed at the lower end of the vacuum passage portion 122 and is in close contact with the steel plate 10. A sealing member 127 is provided around the suction unit body 121. The sealing member 127 may be formed in various shapes.

The magnet unit 130 is connected to the lift body 110 so as to be spaced apart from the vacuum adsorption unit 120 and applies a magnetic force to the steel plate 10. The magnet unit 130 and the vacuum adsorption unit 120 are installed in the lift body 110 so that even if any one of the vacuum adsorption unit 120 and the magnet unit 130 is not operated normally, Can be prevented from dropping. Further, since the magnet unit 130 and the vacuum adsorption unit 120 are separately provided, the vacuum adsorption unit 120 can be additionally provided between the magnet units 130 without greatly deforming the structure of the existing crane apparatus .

A power supply unit 135 is installed in the lift body 110 and a magnet unit 130 is electrically connected to the power supply unit 135 by electric wires or the like. The magnet unit 130 is coupled to the lift body 110 by a chain or the like and a support body 131 and is electrically connected to the power supply unit 135 to apply a magnetic force to the steel plate 10 And a plurality of electromagnets 132 functioning.

The vacuum adsorption unit 120 and the magnet unit 130 are alternately installed in the lift body 110. The vacuum adsorption unit 120 and the magnet unit 130 are alternately provided, so that the vacuum adsorption force and the magnetic force alternately act on the steel plate 10. Therefore, the vacuum attraction force and the magnetic force can be applied to the steel plate 10 evenly.

The plurality of adsorption ports 123 are arranged perpendicular to the longitudinal direction of the lift body 110. For example, the adsorption unit body 121 is disposed vertically along the longitudinal direction of the lift body 110, and the plurality of adsorption ports 123 are installed along the longitudinal direction of the adsorption unit body 121. Accordingly, since the suction body 121 is installed on the lift body 110 after the plurality of suction ports 123 are installed on the suction body 121, the installation time of the vacuum suction unit 120 can be shortened.

The magnet portion 130 includes a plurality of electromagnets 132 arranged perpendicularly to the longitudinal direction of the lift body 110. For example, the support body 131 may be disposed perpendicular to the longitudinal direction of the lift body 110, and the electromagnet 132 may be disposed along the longitudinal direction of the support body 131. Therefore, since the support body 131 is installed on the lift body 110 after the plurality of electromagnets 132 are installed on the support body 131, the time required for installing the magnet 130 on the lift body 110 can be shortened .

The vacuum adsorption unit 120 and the magnet unit 130 are arranged side by side. Therefore, the region where the vacuum adsorption force acts on the steel sheet 10 and the region where the magnetic force acts can be distributed in parallel with each other.

The vacuum adsorption unit 120 and the magnet unit 130 are disposed at equal intervals. Therefore, since the vacuum adsorption force and the magnetic force act on the steel sheet 10 at the same intervals, the vacuum adsorption force and the magnetic force can act uniformly throughout the steel sheet 10. It is possible to prevent the steel plate 10 from being warped or deformed when it is conveyed because the vacuum adsorption force and the magnetic force act uniformly on the whole steel plate 10.

When the steel plate 10 is raised, the vacuum adsorption unit 120 is controlled so as to apply the vacuum attraction force to the steel plate 10, and the magnet unit 130 is controlled not to apply the magnetic force to the steel plate 10. When the steel plate 10 is raised, only the vacuum adsorption force of the vacuum adsorption unit 120 acts on the steel plate 10, so that it is possible to prevent two or more steel plates 10 from rising due to the magnetic force. In addition, the magnetic force of the magnet portion 130 may not be adjusted so weakly that the two steel plates 10 are not raised when the crane device lifts the steel plate 10. [ Therefore, the operation time of the crane apparatus can be shortened by the time required for the driver to adjust the magnetic force of the magnet unit 130.

When the steel plate 10 is fed, the vacuum adsorption unit 120 and the magnet unit 130 are controlled so that the vacuum adsorption force and the magnetic force are applied to the steel plate 10 at the same time. Since the vacuum attraction force and the magnetic force are simultaneously applied to the steel sheet 10 when the steel sheet 10 is fed, the adhesion force of the steel sheet 10 at the time of feeding the steel sheet 10 can be increased. Also, even if any one of the vacuum adsorption unit 120 and the magnet unit 130 does not operate normally, the steel plate 10 can be prevented from falling down from the crane device.

The vacuum pump 125 and the power supply unit 135 are electrically connected to the control unit 140. The control unit 140 controls the vacuum adsorption unit 120 and the magnet unit 130 according to the operation of the driver. For example, the control unit 140 controls the vacuum pump 125 so that a vacuum is formed in the vacuum adsorption unit 120. Also, the controller 140 controls the power supply unit 135 to control the magnet unit 130 so that a magnetic force is generated.

The operation of the crane apparatus according to an embodiment of the present invention will now be described.

FIG. 4 is a view illustrating a state in which a crane apparatus according to an embodiment of the present invention is lowered. FIG. 5 is a view illustrating a state in which a vacuum adsorption unit of a crane apparatus according to an embodiment of the present invention, FIG. 6 is a view illustrating a state in which a crane apparatus according to an embodiment of the present invention lifts a steel plate by a vacuum adsorption force of a vacuum adsorption unit, and FIG. 7 is a view illustrating a structure of a crane according to an embodiment of the present invention FIG. 8 is a view showing a state in which a vacuum adsorption force and a magnetic force are applied to a steel plate by driving the vacuum adsorption portion and the magnet portion in a crane device, and FIG. 8 is a view showing a state in which a crane device according to an embodiment of the present invention Fig.

4 to 8, the lift body 110 is lowered to contact the vacuum adsorbing portion 120 with the uppermost steel sheet 10 (see FIG. 4). When the vacuum adsorption part 120 contacts the uppermost steel plate 10, the lift body 110 is stopped.

When the vacuum pump 125 is driven by the control unit 140, the vacuum adsorption unit 120 applies vacuum attraction force to the steel plate 10 to attract the steel plate 10 (refer to FIG. 5). At this time, since the control unit 140 stops the power supply unit 135, no magnetic force is generated in the magnet unit 130.

The lift body 110 is lifted and the steel plate 10 is raised by the vacuum attraction force of the vacuum adsorption unit 120 (see FIG. 6). At this time, magnetic force is not generated in the magnet unit 130 and the steel plate 10 is raised only by the vacuum attraction force of the vacuum adsorption unit 120, so that the steel plate 10 is prevented from adhering to the uppermost steel plate 10 .

The controller 140 determines whether the steel plate 10 has been elevated by a predetermined height. Here, the predetermined height means a distance at which the topmost steel sheet 10 is sufficiently away from the steel sheet 10 below, and the magnetic force of the magnet 130 can not raise the steel sheet 10 below. In addition, the predetermined height may be set to a height at which the topmost steel sheet 10 is fully raised.

The vacuum adsorption unit 120 raises the steel plate 10 to a predetermined height and then drives the magnet unit 130 to apply magnetic force to the steel plate 10 (see FIG. 7). The magnetic force of the magnet portion 130 acts on the steel plate 10 after the steel plate 10 is raised to a predetermined height by the vacuum attraction force so that it is possible to prevent two or more steel plates 10 from being raised at once by magnetic force have.

Since the magnet portion 130 attaches the steel plate 10 by applying a magnetic force to the steel plate 10 after the steel plate 10 is lifted up, the attraction force of the steel plate 10 can be further increased by the vacuum attraction force and the magnetic force . In FIG. 7, the magnet part 130 where a magnetic force is generated is shown in a state of being hatched.

The lift body 110 is moved and the steel plate 10 is transferred to the loading site (see FIG. 8). At this time, the vacuum adsorption unit 120 and the magnet unit 130 apply a vacuum attraction force and a magnetic force to the steel plate 10 at the same time. The vacuum adsorption force and the magnetic force are applied to the steel plate 10 at the same time when the steel plate 10 is transported, so that it is possible to prevent the steel plate 10 from falling off the crane apparatus when the steel plate 10 is transported. Also, even if any one of the vacuum adsorption unit 120 and the magnet unit 130 does not operate normally, the steel plate 10 can be prevented from falling down from the crane device.

The vacuum adsorption unit 120 and the magnet unit 130 may be alternately installed in the lift body 110 to apply vacuum attraction force and magnetic force to the steel plate 10. Since the vacuum adsorption part 120 and the magnet part 130 are alternately provided, the vacuum adsorption force and the magnetic force act uniformly on the entire steel plate 10. Therefore, it is possible to prevent the steel plate 10 from being deformed while being conveyed.

As described above, since the vacuum attraction force and the magnetic force are simultaneously applied to the steel strip 10 when the steel strip 10 is fed, it is possible to prevent the steel strip 10 from falling off the crane when it is fed. Also, even if any one of the vacuum adsorption unit 120 and the magnet unit 130 does not operate normally, the steel plate 10 can be prevented from falling down from the crane device.

Since only the vacuum attraction force of the vacuum adsorption portion 120 acts on the steel plate 10 when the steel plate 10 is lifted up, it is possible to prevent two or more steel plates 10 from rising at the same time by the magnetic force.

Since the magnitude of the magnetic force of the magnet unit 130 does not need to be adjusted when the crane apparatus lifts and moves the steel plate 10, the operation of the crane apparatus by the time required for the driver to adjust the magnetic force intensity of the magnet unit 130 Time can be shortened.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the claims.

10: steel plate 110: lift body
113: connecting member 120: vacuum adsorption part
121: Suction part body 122: Vacuum channel part
123: Suction port 125: Vacuum pump
130: Magnet part 131: Support body
132: electromagnet 135: power supply part
140:

Claims (8)

A lift body movably installed;
A vacuum suction unit connected to the lift body and applying a vacuum suction force to the steel plate; And
And a magnet unit connected to the lift body so as to be spaced apart from the vacuum adsorption unit and applying a magnetic force to the steel plate.
The method according to claim 1,
Wherein the vacuum adsorption part and the magnet part are alternately installed in the lift body.
3. The method of claim 2,
Wherein the vacuum adsorption portion includes a plurality of adsorption ports arranged perpendicularly to the longitudinal direction of the lift body.
3. The method of claim 2,
Wherein the magnet unit includes a plurality of electromagnets arranged perpendicularly to the longitudinal direction of the lift body.
3. The method of claim 2,
Wherein the vacuum adsorption part and the magnet part are arranged in parallel with each other.
6. The method of claim 5,
Wherein the vacuum adsorption portion and the magnet portion are disposed at equal intervals.
3. The method of claim 2,
And a control unit for controlling the operation of the vacuum adsorption unit and the magnet unit so that the vacuum adsorption unit provides the vacuum adsorption force to the steel plate and the magnet unit lifts the steel plate without providing a magnetic force to the steel plate Wherein the crane device is a crane device.
3. The method of claim 2,
Further comprising a control unit for controlling the operation of the vacuum adsorption unit and the magnet unit so that the vacuum adsorption unit and the magnet unit transfer the steel plate to the steel plate while simultaneously providing a vacuum attraction force and a magnetic force, .
KR1020150057715A 2015-04-24 2015-04-24 Crane apparatus KR20160126543A (en)

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KR1020150057715A KR20160126543A (en) 2015-04-24 2015-04-24 Crane apparatus

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Application Number Priority Date Filing Date Title
KR1020150057715A KR20160126543A (en) 2015-04-24 2015-04-24 Crane apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020082243A (en) * 2018-11-20 2020-06-04 住友金属鉱山株式会社 Conveyance facility

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020082243A (en) * 2018-11-20 2020-06-04 住友金属鉱山株式会社 Conveyance facility

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