Apparatus for conveying rolling coil

Abstract

The present invention relates to a rolling coil conveying device, characterized by comprising: a first frame portion connected to a cross-type crane; a second frame portion located below the first frame portion and spaced apart from the first frame portion; a bellows portion connecting the first frame portion and the second frame portion and having a plurality of unit connecting members connected in a link-like manner; and a gripping portion connected to the second frame portion and gripping a rolling coil.

Description

Technology Field

[0001] The present invention relates to a rolling coil conveying device, and more specifically, to a rolling coil conveying device capable of preventing shaking of the rolling coil during conveying of the rolling coil. Background Technology

[0002] Generally, steel sheets produced through the hot rolling or cold rolling processes at steel mills are wound into coils and transported to ships by a bridge-type crane (BTC).

[0003] When a rolled coil is transported suspended from a wire of a bridge crane, the coil may sway due to the wire's own length, potentially leading to collisions with ships or the coil falling due to wire breakage. Therefore, there is a need to improve this situation.

[0004] The background technology of the present invention is disclosed in Korean Registered Patent Publication No. 10-1328220 (published Nov. 20, 2013, Title of Invention: Crane Lift). The problem to be solved

[0005] One embodiment of the present invention provides a rolling coil conveying device capable of preventing shaking of the rolling coil during the conveying of the rolling coil. means of solving the problem

[0006] The present invention, devised to achieve the above objective, comprises a rolling coil conveying device including a first frame portion connected to a bridge-type crane, a second frame portion located below the first frame portion and spaced apart from the first frame portion, a bellows portion connecting the first frame portion and the second frame portion and having a plurality of unit connecting members connected in a link-like manner, and a gripping portion connected to the second frame portion and gripping a rolling coil.

[0007] The first frame portion may be provided with a first connecting protrusion to which the upper side of the bellows portion is hinge-connected, the first connecting protrusion may be formed protruding from the outer surface of the first frame portion, and a pair of the first connecting protrusions may be arranged spaced apart from each other.

[0008] The second frame portion may be provided with a second connecting protrusion to which the lower side of the bellows portion is hinge-connected, the second connecting protrusion may be formed protruding from the outer surface of the second frame portion, and a pair of the second connecting protrusions may be arranged spaced apart from each other.

[0009] The above bellows section may include a first bellows section having a first rotation axis axially coupled to both ends of a plurality of first unit connecting members arranged in a row so as to rotatably combine a plurality of first unit connecting members arranged in a row; a second bellows section having a second rotation axis axially coupled to both ends of a plurality of second unit connecting members arranged in a row so as to rotatably combine a plurality of second unit connecting members arranged in a row; and a third rotation axis axially coupled to the central portion of a plurality of first unit connecting members and a plurality of second unit connecting members arranged in a cross-stack so as to rotatably combine a plurality of first unit connecting members and a plurality of second unit connecting members.

[0010] The first unit connecting member may be provided with a first yoke formed in the shape of an elongated hole, and the second unit connecting member may be provided with a second yoke formed in the shape of an elongated hole, and the third rotation axis may pass through the first yoke and the second yoke so that the third rotation axis may be located inside the first yoke and the second yoke.

[0011] The first yaw hole penetrates the first unit connecting member and can be formed in the longitudinal direction of the first unit connecting member, and the second yaw hole penetrates the second unit connecting member and can be formed in the longitudinal direction of the second unit connecting member.

[0012] The above bellows can be extended or contracted in length in the vertical direction.

[0013] The gripping portion may include a first finger portion having a first locking portion on which one side of the rolled coil is mounted, a second finger portion having a second locking portion corresponding to the first finger portion and on which the other side of the rolled coil is mounted, and an actuator portion for adjusting the distance between the first finger portion and the second finger portion. Effects of the invention

[0014] The present invention has the effect of preventing collision with a ship and preventing accidents involving the falling of a rolled coil during transport of a rolled coil by suppressing the shaking of a rolled coil held by a gripping part through the configuration of a bellows part in which a plurality of unit connecting members are connected between a first frame part and a second frame part and a plurality of unit connecting members are joined in a link-like manner.

[0015] In addition, the present invention has the effect of maintaining a constant angle of inclination of the bellows section through the configuration of a unit connecting member in which a groove of the elongated hole is formed and which is cross-connected via a third rotation axis. Brief explanation of the drawing

[0016] FIG. 1 is a front view schematically showing a state in which a rolling coil conveying device according to one embodiment of the present invention is installed on a bridge crane. FIG. 2 is a perspective view and a partial enlarged view schematically showing a rolling coil transfer device according to one embodiment of the present invention. FIG. 3 is a front view schematically showing a state in which a rolled coil is gripped by a gripping part in a rolled coil conveying device according to one embodiment of the present invention. FIG. 4 is a front view schematically showing the state in which the length of the bellows portion is contracted in a rolling coil conveying device according to one embodiment of the present invention. Specific details for implementing the invention

[0017] Hereinafter, an embodiment of a rolling coil conveying device according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or convention of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0019] FIG. 1 is a front view schematically showing a state in which a rolling coil conveying device according to one embodiment of the present invention is installed on a cross-type crane, FIG. 2 is a perspective view and a partial enlarged view schematically showing a rolling coil conveying device according to one embodiment of the present invention, FIG. 3 is a front view schematically showing a state in which a rolling coil is grasped in the grasping part of a rolling coil conveying device according to one embodiment of the present invention, and FIG. 4 is a front view schematically showing a state in which the length of the bellows part is contracted in a rolling coil conveying device according to one embodiment of the present invention.

[0020] Referring to FIGS. 1 to 4, a rolling coil conveying device according to one embodiment of the present invention includes a first frame part (100), a second frame part (200), a bellows part (300), and a gripping part (400), which are described in detail as follows.

[0021] The first frame section (100) is connected to a bridge-type crane (10). The bridge-type crane (10) is a large crane installed in ports, docks, etc., to load or unload rolled coils (20) or containers onto ships.

[0022] A first frame section (100) can be connected to a bridge crane (10) by a steel wire (W). An electric winch (not shown) installed on the bridge crane (10) can pull the first frame section (100) up and down while winding or unwinding the steel wire (W).

[0023] The first frame portion (100) may be provided with a first connecting protrusion (110) to which a bellows portion (300), described later, is hinge-connected. The first connecting protrusion (110) may be formed protruding from the outer lower surface of the first frame portion (100). The upper side of the bellows portion (300) may be hinge-connected to the first connecting protrusion (110) via a hinge axis (h). The first connecting protrusions (110) may be spaced apart from each other. A pair of first connecting protrusions (110) may be located on one side and the other side of the first frame portion (100), respectively.

[0024] The second frame section (200) is located below the first frame section (100). The second frame section (200) is spaced apart from the first frame section (100). That is, the first frame section (100) and the second frame section (200) are spaced apart vertically.

[0025] The second frame portion (200) may be provided with a second connecting protrusion (210) to which the bellows portion (300) is hinge-connected. The second connecting protrusion (210) may be formed protruding from the outer upper surface of the second frame portion (200). The lower side of the bellows portion (300) may be hinge-connected to the second connecting protrusion (210) via a hinge axis (h). The second connecting protrusion (210) may be spaced apart from each other. A pair of second connecting protrusions (210) may be located on one side and the other side of the second frame portion (200), respectively.

[0026] A first coupling protrusion (110a) provided on one side of the first frame part (100) and a second coupling protrusion (210a) provided on one side of the second frame part (200) face each other vertically, and a first coupling protrusion (110b) provided on the other side of the first frame part (100) and a second coupling protrusion (210b) provided on the other side of the second frame part (200) face each other vertically.

[0027] The bellows section (300) is positioned between the first frame section (100) and the second frame section (200), which are arranged vertically, and connects the first frame section (100) and the second frame section (200). The bellows section (300) is formed by linking multiple unit connecting members so that its length can be extended or contracted in the vertical direction. Additionally, the bellows section (300) can be folded.

[0028] The bellows section (300) may include a first bellows section (310) and a second bellows section (320). The first bellows section (310) may include a first unit connecting member (311) and a first rotation axis (312).

[0029] A plurality of first unit connecting members (311) are provided and arranged in a row. A first rotation axis (312) penetrates between the two ends of the plurality of first unit connecting members (311) arranged in a row so that the first unit connecting members (311) can be rotatably connected to each other, and is axially connected to each end of the first unit connecting members (311). The first bellows section (310) can be folded in a zigzag shape.

[0030] The upper end of the first unit connecting member (311) positioned on the upper part of the first bellows section (310) is rotatably coupled to the first connecting protrusion (110a) provided on one side of the first frame section (100), and the lower end of the first unit connecting member (311) positioned on the lower part of the first bellows section (310) is rotatably coupled to the second connecting protrusion (210a) provided on one side of the second frame section (200).

[0031] The second bellows section (320) may include a second unit connecting member (321) and a second rotation axis (322).

[0032] The second unit connecting member (321) is provided in multiple numbers and arranged in a row. The second rotation axis (322) penetrates between the two ends of the multiple second unit connecting members (321) and is axially connected to each end of the second unit connecting member (321) so that the second unit connecting members (321) arranged in a row can be rotatably connected to each other. The second bellows section (320) can be folded in a zigzag shape.

[0033] The upper end of the second unit connecting member (321) positioned on the upper part of the second bellows section (320) is rotatably coupled to the first connecting protrusion (110b) provided on the other side of the first frame section (100), and the lower end of the second unit connecting member (321) positioned on the lower part of the second bellows section (320) is rotatably coupled to the second connecting protrusion (210b) provided on the other side of the second frame section (200).

[0034] The bellows section (300) may further include a third rotation axis (330). The first bellows section (310) and the second bellows section (320) may be stacked and combined. Additionally, the first unit connecting member (311) and the second unit connecting member (321) may be stacked and combined by crossing each other.

[0035] The third rotation axis (330) is axially coupled to the central portions of the first unit connecting member (311) and the second unit connecting member (321) by penetrating the central portions of the first unit connecting member (311) and the second unit connecting member (321) so that a plurality of first unit connecting members (311) and a plurality of second unit connecting members (321) that are cross-stacked are rotatably coupled to each other.

[0036] A first unit connecting member (311) positioned on the upper part of the first bellows section (310) and coupled to the first connecting protrusion (110a) of the first frame section (100), and a first unit connecting member (311) positioned on the lower part of the first bellows section (310) and coupled to the second connecting protrusion (210a) of the second frame section (200), may each be provided with a first recess (311a) formed in the shape of an elongated hole.

[0037] The first hole (311a) penetrates the first unit connecting member (311) and can be formed along the length of the first unit connecting member (311).

[0038] A second unit connecting member (321) that is positioned on the upper part of the second bellows section (320) and coupled to the first connecting protrusion (110b) of the first frame section (100) and cross-stacked coupled with the first unit connecting member (311), and a second unit connecting member (321) that is positioned on the lower part of the second bellows section (320) and coupled to the second connecting protrusion (210b) of the second frame section (200) and cross-stacked coupled with the first unit connecting member (311) may each be provided with a second recess (321a) formed in the shape of an elongated hole.

[0039] The second yoke hole (321a) penetrates the second unit connecting member (321) and can be formed along the length of the second unit connecting member (321). At this time, the third rotation axis (330) passes through the first yoke hole (311a) and the second yoke hole (321a) and is located inside the first yoke hole (311a) and the second yoke hole (321a).

[0040] A first unit connecting member (311) and a second unit connecting member (321) are respectively provided on the upper and lower sides of the first bellows section (310) and the upper and lower sides of the second bellows section (320), and a recessed hole (311a, 321a) of an elongated hole is formed in each of the first unit connecting member (311) and the second unit connecting member (321), respectively, and the first unit connecting member (311) and the second unit connecting member (321) are joined through a third rotation axis (330), thereby maintaining the angle of inclination of the first unit connecting member (311) and the second unit connecting member (321).

[0041] The gripping portion (400) is coupled to the second frame portion (200). The gripping portion (400) is for gripping the rolled coil (20) and can be coupled to the outer lower portion of the second frame portion (200).

[0042] The gripping portion (400) may include a first finger portion (410), a second finger portion (420), and an actuator portion (430).

[0043] The first finger portion (410) may be formed in a joint shape and may be provided with a first locking portion (411) that is inserted into the inside of the rolling coil (20) through one side opening of the rolling coil (20) and on which the rolling coil (20) is mounted. The first locking portion (411) may be formed protrudingly on the outer surface of the first finger portion (410) facing the second finger portion (420) described later.

[0044] The second finger portion (420) corresponds to the first finger portion (410) and may be spaced apart from the first finger portion (410). The second finger portion (420) may be formed in a joint shape and may be provided with a second locking portion (421) that is inserted into the inside of the rolling coil (20) through the other side opening of the rolling coil (20) and on which the rolling coil (20) is mounted. The second locking portion (421) may be formed protrudingly on the outer surface of the second finger portion (420) facing the first finger portion (410).

[0045] The actuator part (430) adjusts the distance between the first finger part (410) and the second finger part (420). The actuator part (430) may include a motor (431), a screw shaft (432), a nut (433), and a pivot bar (434).

[0046] The motor (431) generates rotational force depending on whether power is applied.

[0047] The screw shaft (432) is axially coupled to the motor (431), and screw threads are formed on its outer surface. The screw shaft is axially coupled to the motor (431) and rotates by the driving of the motor (431).

[0048] The nut (433) is coupled to the outer diameter of the screw shaft (432). That is, the nut (433) is screw-coupled to the screw shaft (432). The nut (433) is moved by the rotation of the screw shaft (432). To elaborate, the nut (433) moves linearly along the screw shaft (432) and reciprocates according to the rotational direction of the screw shaft (432). At this time, the screw shaft (432) may be a ball screw that converts rotational motion into linear motion of the nut.

[0049] The pivot bar (434) is provided in pairs, with one end each rotatably hinged to both sides of the nut (433), and the other end each rotatably hinged to the outer sides of the first finger portion (410) and the second finger portion (420).

[0050] That is, when the screw shaft (432) receiving rotational driving force from the motor (431) is rotated in one direction and the nut (433) rises along the screw shaft (432), the gap between the first finger part (410) and the second finger part (420) widens, and when the screw shaft (432) rotated in one direction is rotated in the opposite direction and the nut (433) descends along the screw shaft, the gap between the first finger part (410) and the second finger part (420) narrows.

[0051] A rolling coil conveying device according to one embodiment of the present invention connects the first frame part (100) and the second frame part (200), and through the configuration of a bellows part (300) in which a plurality of unit connecting members are combined in a link-like manner, the shaking of the rolling coil (20) held by the gripping part (400) is suppressed, thereby preventing collision with a ship during the conveying of the rolling coil (20) and preventing a falling accident of the rolling coil (20).

[0052] A rolling coil conveying device according to one embodiment of the present invention can maintain a constant angle of inclination of the bellows section (300) through the configuration of unit connecting members (311, 321) that are cross-connected via a third rotation axis (330) and have elongated holes (311a, 321a) formed therein.

[0054] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the claims below. Explanation of the symbols

[0055] 10: Bridge crane 20: Rolled coil 100: First frame part 110: First connecting protrusion 200: Second frame part 210: Second connecting protrusion 300: Jabara Department 310: 1st Jabara Department 311: 1st unit connecting member 311a: 1st recess 312: 1st rotation axis 320: 2nd bellows section 321: Second unit connecting member 321a: Second recess 322: Second rotation axis 330: Third rotation axis 400: Grafting section 410: 1st finger section 411: 1st catch 420: 2nd finger cleavage 421: Second locking part 430: Actuator part

Claims

Claim 1 A first frame section connected to a bridge-type crane; a second frame section located below the first frame section and spaced apart from the first frame section; a bellows section connecting the first frame section and the second frame section, with a plurality of unit connecting members joined in a link-like manner; and a gripping section coupled to the second frame section and gripping a rolled coil; wherein the gripping section comprises: a first finger section having a first locking part on which one side of the rolled coil is mounted; a second finger section corresponding to the first finger section and having a second locking part on which the other side of the rolled coil is mounted; and an actuator section for adjusting the distance between the first finger section and the second finger section; wherein the actuator section comprises: a motor; a ball screw type screw shaft axially coupled to the motor and rotated by the driving of the motor; and a nut coupled to the screw shaft and moved by the rotation of the screw shaft. and a pair of pivot bars, each having one end rotatably hinged to both sides of the nut and the other end rotatably hinged to the first finger portion and the second finger portion, respectively; wherein the bellows portion comprises: a first bellows portion having a first rotation axis axially coupled to both ends of a plurality of first unit connecting members arranged in a row so as to rotatably connect a plurality of first unit connecting members; a second bellows portion having a second rotation axis axially coupled to both ends of a plurality of second unit connecting members arranged in a row so as to rotatably connect a plurality of second unit connecting members arranged in a row; and a third rotation axis axially coupled to the central portion of a plurality of first unit connecting members and a plurality of second unit connecting members so as to rotatably connect a plurality of first unit connecting members and a plurality of second unit connecting members arranged in an alternating stack.It includes, wherein the first unit connecting member is provided with a first concave hole formed in the shape of an elongated hole, and the second unit connecting member is provided with a second concave hole formed in the shape of an elongated hole, and the third rotating shaft passes through the first concave hole and the second concave hole, and the third rotating shaft is located inside the first concave hole and the second concave hole, and the first unit connecting member, which is respectively coupled to the first frame part and the second frame part, is provided with a first concave hole, and the second unit connecting member, which is coupled to the first frame part and cross-stacked coupled with the first unit connecting member, and the second unit connecting member, which is coupled to the second frame part and cross-stacked coupled with the first unit connecting member, are each provided with a second concave hole, and the first locking part and the second locking part are respectively inserted into the inside of the rolling coil so that the rolling coil is mounted, and the first locking part is formed to protrude from the outer surface of the first finger part facing the second finger part, and the second locking part is the first A rolling coil transfer device characterized by being formed protrudingly on the outer surface of the second finger portion facing the finger portion, wherein the first yaw hole and the second yaw hole are formed only on the first unit connecting member and the second unit connecting member, respectively, connected to the first frame portion and the second frame portion. Claim 2 A rolling coil conveying device according to claim 1, wherein the first frame part is provided with a first connecting protrusion to which the upper side of the bellows part is hinge-connected, and the first connecting protrusion is formed protruding from the outer surface of the first frame part, and a pair thereof are arranged spaced apart from each other. Claim 3 A rolling coil conveying device according to claim 1, wherein the second frame part is provided with a second connecting protrusion to which the lower side of the bellows part is hinge-connected, and the second connecting protrusion is formed protruding from the outer surface of the second frame part, and a pair thereof are arranged spaced apart from each other. Claim 4 delete Claim 5 delete Claim 6 A rolling coil conveying device according to claim 1, wherein the first yoke penetrates the first unit connecting member and is formed in the longitudinal direction of the first unit connecting member, and the second yoke penetrates the second unit connecting member and is formed in the longitudinal direction of the second unit connecting member. Claim 7 A rolling coil conveying device according to claim 1, wherein the bellows portion is characterized by extending or contracting in length in the vertical direction. Claim 8 delete

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