KR101520839B1 - Gripper Having a Fixing Member for Coil-Type Steel Sheet - Google Patents

Abstract

A steel coil gripper including a fixing member is disclosed. A steel coil gripper according to an embodiment of the present invention is a steel coil gripper mounted on one end of a crane to load and unload steel coils. The gripper is mounted on a top portion of the gripper, A body portion having a recessed-shaped mounting portion at a lower portion thereof; An auxiliary beam having a hook hook portion and a buffer member guide hole, the auxiliary beam being connected to the buffer member through the guide hole, the auxiliary beam being adjustable in distance from the main body portion by vertically moving the buffer member; And a fixing port mounted on a lower end of the connecting portion to suck or press the outer circumferential surface of the steel coil, wherein a distance between the main body and the fixing port due to the upward and downward movement of the connecting portion, A first fixing part to which the first fixing part is adjusted; Two or more horizontal arms mounted horizontally on both sides of the main body and projected from the main body by the drive gear or introduced into the main body; A vertical arm mounted vertically downward at both ends of the horizontal arm; A second fixing part mounted on the lower side of the vertical arm by a hinge part and being rotatable about the hinge part and protruding in a direction orthogonal to the vertical arm mounting direction so as to hold and fix the steel coil; .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steel coil gripper including a fixing member,

The present invention relates to a steel coil gripper including a fixing member, and more particularly, to a steel coil gripper having a structure including a fixing member having a specific structure, so as to provide safe and improved working efficiency in the unloading of steel coils And more particularly, to a steel coil gripper capable of achieving the above object.

Generally, a manufactured steel plate is wound in the form of a coil using a winder, and the coil thus wound is unloaded through a steel coil gripper or wire attached to the crane.

1 is a schematic view of a conventional steel coil gripper according to the prior art.

1, a steel coil gripper 10 includes a frame structure 12 provided with a ring 11 to which a hook 21 of a pulling portion 20 of a crane is hooked, and a frame structure 12, And a hook member 13 slidably installed in the lower end of the steel coil 30 and inserted into the inner diameter 31 of the steel coil 30.

Therefore, when the hook member 13 is moved toward the inner diameter 31 of the steel coil 30 by adjusting the pulling portion 20 of the crane and then the hook member 13 is slid to narrow the width, The horizontal loading plate 14 at the lower end of the steel coil 13 is caught by the inner diameter 31 of the steel coil 30 and grasps the steel coil 30.

The steel coil gripper 10 has a structure in which the steel coil 30 is brought into contact with the hook member 13 and the loading plate 14 during grasping and transporting the steel coil 30, There is a problem in that damage is caused by contact with the outer surface of the cover.

That is, when the steel coil gripper 10 is lifted due to the gripping of the steel coil 30 and the operation of the pulling portion 20 of the crane, the loading plate 14 momentarily bumps against the inner diameter 31 of the heavy steel coil 30 A loading mark can be generated. In addition, in the process of inserting the loading plate 14 of the steel coil gripper 10 into the inner diameter 31 of the steel coil 30, the side surface of the steel coil 30 may collide with the hook member 13, Side collision of the steel coil 30 may occur due to the collision, and this collision may also damage the various devices 13, 14 of the steel coil gripper 10.

FIGS. 2 to 4 are schematic views showing problems that can be caused by the steel coil gripper according to the prior art.

Referring first to FIG. 2, generally, the steel coil gripper 10 is steered by a driver in a crane cockpit of a high height. Therefore, when a steel coil to be moved is to be moved among a plurality of steel coils loaded, a driver positioned at a high height can not accurately grasp the position of the steel coil gripper 10, (A) between the hook member 13 and the outer surface of the steel coil 30 during the descent of the steel coil gripper 10, as shown in Fig.

3 is a schematic view showing the moment when the gripped steel coil 30 is lifted by the steel coil gripper 10.

As shown in FIG. 3, a collision B between the steel coil 30 and the hook member 13 may occur due to the lateral movement of the crane.

FIG. 4 is a schematic view showing a state in which the gripped steel coil 30 rocks to the left and right due to an external force during the process of being unloaded by the steel coil gripper 10.

4, the side surface of the steel coil 30 can collide with the hook member 13 (C) by the left, right, up and down, front to back rocking motion of the ship 50 The inner diameter 31 of the steel coil 30 can collide with the loading plate 14 (D).

5 to 6 are schematic views showing problems that can be caused by a steel coil gripper or wire according to the related art.

Referring to these figures, damage E due to collision of the steel coil 30 frequently occurs in the process of unloading the ship 50 as well. Particularly, in the case of unloading the steel coil 30 to the ship 50, the damage E of the steel coil 30 and the failure of the gripper may be caused by the swinging motion and the vertical vibration of the ship 50 have.

As a result, the conventional steel coil gripper 10 according to the related art is capable of preventing the steel coil 30 and the steel coil gripper 50 from shaking of the ship 50 and shaking of the crane when the steel coil 30 is unloaded in the ship 50 10), it can not be used for cargo handling in the ship.

Therefore, due to these factors, when the steel coil 30 is unloaded to the ship 50 in general, the wire 60 is directly wound by the person, that is, the work force 70, to unload the steel coil 30 . However, the unloading operation using the wire 60 extremely lowers the working efficiency in a harsh working environment such as a hot, cold, or late night time. In addition, there is a high risk of safety accidents caused by this, and excessive manpower is required.

Korean Registered Patent No. 10-0879322 (Date of Registration 2009.01.12)

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved working efficiency in the unloading operation of a steel coil, and in particular, to provide a steel coil, which is caused by contact between a steel coil gripper and a steel coil, And a steel coil gripper capable of preventing damage to the steel coil gripper, thereby improving poor working conditions by mechanization excluding the wire work, improving the work efficiency of the unloading work, and reducing manpower cost.

According to an aspect of the present invention, there is provided a steel coil gripper,

A steel coil gripper mounted on one end of a crane for loading and unloading steel coils,

A body portion having a buffer member mounted on an upper portion thereof, a driving gear provided therein, and a recessed mounting portion formed on a lower portion thereof;

An auxiliary beam having a hook hook portion and a buffer member guide hole, the auxiliary beam being connected to the buffer member through the guide hole, the auxiliary beam being adjustable in distance from the main body portion by vertically moving the buffer member;

And a fixing port mounted on a lower end of the connecting portion to suck or press the outer circumferential surface of the steel coil, wherein a distance between the main body and the fixing port due to the upward and downward movement of the connecting portion, A first fixing part to which the first fixing part is adjusted;

Two or more horizontal arms mounted horizontally on both sides of the main body and projected from the main body by the drive gear or introduced into the main body;

A vertical arm mounted vertically downward at both ends of the horizontal arm; And

A second fixing part mounted on the lower side of the vertical arm by a hinge part and being rotatable around the hinge part and protruding in a direction orthogonal to the vertical arm mounting direction so as to hold and fix the steel coil;

. ≪ / RTI >

In this case, the buffer member may be a spring type shock absorber, an oil type shock absorber, or a gas type shock absorber.

Also, the driving gear may be a rack and a pinion gear.

Meanwhile, the connecting portion may be a hydraulic actuator or a gas type actuator, and the fixing port may be an electromagnet or a rubber pad.

The second fixing portions may be formed,

The hinge unit may be rotated 90 degrees about the hinge unit, and may be folded into the vertical arm or protruded in a direction perpendicular to the vertical arm mounting direction.

Further, two or more cylindrical rollers may be mounted on the outer side of the vertical arm, and one or more contact sensors may be mounted on the inner side of the vertical arm.

The laser light emitting portion and the laser light receiving portion may be mounted on the end portions of the second fixing portions, respectively.

The laser generation unit may be further mounted on the fixed port and the vertical arm lower end, and the laser generation unit may be mounted vertically downward to output a laser to display a colored bar on the outer surface of the steel coil.

The present invention also provides a crane comprising at least one steel coil gripper.

According to the steel coil gripper according to the embodiment of the present invention, by constructing the steel coil gripper with the structure including the fixing member having the specific structure, when the cargo is loaded on the ship, the integration of the steel coil and the steel coil gripper is maintained, It is possible to prevent the damage caused by the contact of the steel coil and the damage of the steel coil gripper caused by the movement of the ship and the crane, and to achieve the improved working efficiency in the unloading work of the steel coil.

1 is a schematic view of a steel coil gripper according to the prior art.
FIGS. 2 to 6 are schematic views showing problems that may be caused by a steel coil gripper according to the related art.
7 and 8 are front views of a steel coil gripper according to the present invention.
9 is a front view of a vertical arm of a steel coil gripper according to the present invention.
10 to 12 are schematic views showing a state in which a steel coil is gripped by a steel coil gripper according to the present invention.
13 to 17 are schematic views showing a state in which the steel coil is placed on the ground by the steel coil gripper according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited thereto. In the description of the present invention, a detailed description of known configurations will be omitted, and a detailed description of configurations that may unnecessarily obscure the gist of the present invention will be omitted.

7 and 8 show a front view of a steel coil gripper according to an embodiment of the present invention.

Referring to these drawings, a steel coil gripper 800 according to the present embodiment includes a main body 100 having a buffer member 120, an auxiliary beam 200 having a buffer member guide hole 220, A horizontal arm 400 and a vertical arm 500 having a cylindrical roller 510 and a second fixing part 600 and a laser generating part 710 and 720 ).

The body 100 includes a driving gear (not shown) disposed inside the body 100. The driving arm allows the horizontal arm 400 to be moved in the lateral direction May be possible. The main body 100 may have a connection hole 130 which can be engaged with the connection part 310 of the first fixing part 300.

A hooking part 230 can be formed on the main body 210 of the auxiliary beam 200 so that the hooking part 230 can be engaged with the hook 21 of the pulling part 20 of the crane. So that it can be combined with the buffer member 120. The distance between the main body 210 of the auxiliary beam 200 and the main body 110 of the main body 100 can be adjusted by the cushioning member 120. [

The cushioning member 120 and the cushioning member guide hole 220 may have a structure capable of adjusting the distance between the main body 210 of the auxiliary beam 200 and the main body 110 of the main body 100 and absorbing the impact But is not particularly limited to, preferably, an oil type shock absorber, a gas type shock absorber, or a spring device.

The first fixing part 300 may be coupled to the connection hole 130 of the body 100 through the connection part 310 and the fixing part 320 may be driven up and down by the upward and downward movement of the connection part 310 . The fixed port 320 functions to adsorb or press the outer surface of the steel coil (not shown) so that the steel coil (not shown) can be more stably fixed, and preferably the electromagnet or rubber pad Lt; / RTI > A detailed description thereof will be described later.

Laser generating portions 710 and 720 may be mounted on the lower end surfaces of the fixing port 320 and the vertical arm 500. The laser generators 710 and 720 serve to guide the steel coil (not shown) to be stowed in a stable manner, and a detailed description thereof will be given later.

The second fixing part 600 may be mounted on the lower side surface of the vertical arm 500 mounted on both sides of the body 110 of the body part 100, respectively. Specifically, the second fixing part 600 can be mounted by the hinge part 610 so that the second fixing part 600 can be rotated. The second fixing part 600 having such a structure can be rotated 90 degrees about the hinge part 610 and folded into the vertical arm 500 or unfolded in a direction perpendicular to the mounting direction of the vertical arm 500 Can be protruded. Therefore, the second fixing part 600 can serve as a latch so as to grasp and lift the steel coil (not shown).

A laser emitting portion 621 and a laser light receiving portion 622 can be mounted inside the lower end of the vertical arms 500, respectively. Therefore, it is possible to detect that the second fixing parts 600 are in a state of being opened in a direction orthogonal to the vertical arm 500 through the laser emitting part 621 and the laser light receiving part 622. [

9 is a front view of a vertical arm of a steel coil gripper according to an embodiment of the present invention.

Referring to Figure 9 with reference to Figure 3, the vertical arm 500 may be equipped with two or more cylindrical rollers 510 on the outer side and one or more contact sensors 520 on the inner side of the vertical arms . The laser generating unit 720 may be mounted on the lower end of the vertical arm 500 and the second fixing unit 600 may be mounted on the lower end of the vertical arm 500 by the hinge unit 610 .

Specifically, the cylindrical roller 510 can prevent damage due to contact between the steel coil gripper 800 and a steel coil (not shown). The steel coil gripper 10 according to the prior art is not equipped with a shock absorber on the side surface of the hook member 13 and can be damaged by contact with the steel coil. However, the vertical arm 500 of the steel coil gripper according to one embodiment of the present invention is equipped with two or more cylindrical rollers 510 on the outer side, so that such damage can be prevented in advance. The cylindrical roller 510 that performs this role may be made of an elastic material, may have an outer diameter of 35 to 50 mm, and 5 to 15 may be mounted to each of the two side vertical arms 500, respectively.

In addition, at least one contact sensor 520 may be mounted on the inner side of the vertical arm 500 to detect a state in which the steel coil (not shown) is fully gripped.

FIG. 10 is a schematic view showing a state where a steel coil is gripped by a steel coil gripper according to an embodiment of the present invention.

Referring to FIG. 10 together with FIG. 2, a conventional steel coil gripper 10 approaches a steel coil 30 to be gripped by the naked eye of a crane driver. Therefore, as shown in FIG. 2, the steel coil 30 may be damaged by the contact between the hook member 13 and the steel coil 30. However, in the steel coil gripper 800 according to one embodiment of the present invention, the laser generating portions 710 and 720 are mounted on the lower end surfaces of the fixing port 320 and the vertical arm 500, The target steel coil 30 can be stably gripped.

Specifically, the laser generating unit 710 mounted on the lower end surface of the fixing port 320 displays a colored bar 711 indicating the center line of the steel coil gripper 800 on the outer surface of the target steel coil 30 . The laser generating unit 720 mounted on the lower end of the vertical arm 500 may display the colored bar 721 showing the width of the vertical arm 500. Therefore, the crane driver (not shown) can safely and quickly move the steel coil gripper 800 on the basis of the colored bars 711 and 721 displayed on the outer surface of the steel coil 30. As a result, improved working efficiency can be achieved in the unloading operation of steel coils.

11 and 12 are schematic views showing a state in which a steel coil is gripped by a steel coil gripper according to an embodiment of the present invention.

Referring to these figures together with FIG. 9, the steel coil gripper 800 can stably hold the steel coil 30 by the first fixing part 300 and the second fixing part 600.

The crane driver can control the inner diameter of the steel coil 30 through the laser light emitting portion 621 and the laser light receiving portion 622 mounted inside the lower ends of the vertical arms 500, 31) inner circumferential surface. When the second fixing part 600 reaches the inner circumferential surface of the inner diameter 31 of the steel coil 30, the width of the vertical arm 500 is narrowed to grip the side of the steel coil 30. The state where the steel coil 30 is stably gripped by the vertical arm 500 can be detected through the touch sensor 520 mounted on the inner side of the vertical arm 500. [ The touch sensor 520 may include a touch bar 522, a toggle switch 521 and a hinge 523. The toggle switch 521 may be replaced with a piezoelectric sensor or the like to be.

When the steel coil 30 is stably gripped by the vertical arm 500, the steel coil 30 is more firmly and stably fixed by the fixing port 320. [

At this time, the fixed port 320 may be composed of an electromagnet or a rubber pad. When the fixed port 320 is an electromagnetic type, the steel coil 30 can be stably fixed by the attraction force of the electromagnet. When the fixed port 320 is a rubber pad, the steel coil 30 is pressed against the rubber pad 30 So that it can be stably fixed. The pressing force of the rubber pad is not particularly limited as long as it is a pressure capable of stably fixing the steel coil 30, but it may preferably be a pressure of 1 to 10 tons.

Further, the fixing port 320 can be raised or lowered by driving the connection portion 310. The connection portion 310 is not particularly limited as long as it is a member having a driving force capable of raising or lowering the fixing port 320, but may be, for example, a hydraulic actuator, a gas type actuator or a full synchronous device.

Therefore, even when the steel coil 30 is pivoted by the steel coil gripper 800 and swung by the external force during the process of being unloaded by the steel coil gripper 800, the vertical arm 500 and the second It is possible to prevent damage to the steel coil 30 and damage to the steel coil gripper due to contact with the stationary portion.

13 and 14 are schematic views showing a state in which the steel coil is placed on the ground by the steel coil gripper according to one embodiment of the present invention.

Referring to these figures, when the steel coil 30 gripped by the steel coil gripper 800 reaches a desired position by the pulling portion 20 of the crane, the steel coil gripper 800 moves the steel coil 30 And is placed on the ship bottom 40. At this time, the cushioning member 120 is operated by the weight of the auxiliary beam 200, and the distance between the auxiliary beam 200 and the main body 110 of the main body 100 is reduced. This operation can prevent the steel coil gripper 800 from being tilted forward and backward as shown in FIG.

Therefore, since the steel coil gripper 800 includes the buffer member 120 that can prevent the backward and forward tilting phenomenon, it is possible to carry out more safe loading and unloading work.

15 and 16 are schematic views showing a state where a steel coil is placed on the ground by a steel coil gripper according to an embodiment of the present invention.

Referring to these drawings, as shown in FIG. 14, when the steel coil 30 is placed on the bottom of the ship 40, the first fixing part 300 is moved up, and the first fixing part The main body 110 of the main body 100 can be lowered by its own weight in response to the upward movement of the main body 100. [ 15, the second fixing part 600 performs an operation of releasing the inner diameter 31 of the steel coil 30, but the first fixing part 300 is formed of the steel coil 30, It is possible to keep the operation of grasping the outer surface of the wafer W as it is.

16, the vertical arm 500 can completely place the steel coil 30 on the bottom of the ship 40 by the operation of the horizontal arm 400. As shown in FIG.

The steel coil gripper 800 according to one embodiment of the present invention is capable of moving the steel coil 30 by the first fixing portion 300 until the moment that the steel coil 30 is completely placed on the ship bottom 40. [ It is possible to prevent the steel coil 30 from being damaged due to the movement of the ship bottom 40, that is, the movement of the ship.

17 is a schematic view showing a state in which a steel coil is placed on the ground by a steel coil gripper according to an embodiment of the present invention.

17, after the steel coil 30 is stably placed on the ship bottom 40, the second fixing part 600 is folded and the towing part 20 of the crane is elevated, so that another loading and unloading operation is performed can do.

Therefore, the steel coil gripper 800 according to the present embodiment includes the cushioning member 120, the first fixing unit 300, the second fixing unit 600, and the laser generating units 710 and 720 having a specific structure The steel coil gripper 800 is constructed so as to integrate the steel coil and the steel coil gripper in the case of loading and unloading on the ship so that damage due to the contact of the steel coil caused by movement of the ship and crane shaking And it is possible to achieve an improved working efficiency in the unloading operation of the steel coil. Further, by attaching the cylindrical roller 510 having a specific structure to the side portion of the vertical arm 500, there is a technical advantage that the damage caused by the contact between the steel coil gripper and the steel coil can be prevented in advance.

In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

10: steel coil gripper 11: ring
12: frame structure 13: hook member
14: Horizontal loading plate 20: Traction part of the crane
21: hook 30: steel coil
31: inner diameter 40: bottom of ship
50: ship 60: wire
70: work force 100:
110: main body 120: buffer member
130: mounting part 200: auxiliary beam,
210: main body 220: buffer member guide hole
230: hook hook portion 300: first fixing portion
310: connection portion 320: fixed port
400: horizontal arm 500: vertical arm
510: Cylindrical roller 520: Contact sensor
600: second fixing portion 610: hinge portion
621: Laser emitting part 622: Laser receiving part
710: Laser generating part 711: Laser colored bar
720: Laser generating part 721: Laser colored bar
800: Steel coil gripper

Claims (8)

A steel coil gripper (800) mounted on one end of a crane for loading and unloading steel coils,
A main body 100 having a cushioning member 120 mounted on its upper portion, a driving gear provided therein, and a depressed mounting portion 130 formed on a lower portion thereof;
And a cushioning member guide hole 220. The cushioning member 120 is connected to the cushioning member 120 through the guide hole 220, An auxiliary beam (200) whose distance from the part (100) is adjusted;
A connection part 310 connected to the body part through the mounting part 130 and a fixing port 320 mounted on a lower end of the connection part 310 to suck or press the outer circumferential surface of the steel coil, 310 to adjust the distance between the main body 100 and the fixed port 320;
Two or more horizontal arms 400 horizontally mounted on both sides of the main body 100 and driven or driven from the main body 100 by the drive gear or introduced into the main body 100;
A vertical arm 500 mounted vertically downward at both ends of the horizontal arm 400; And
The vertical arm 500 is mounted on the lower side of the vertical arm 500 by a hinge and rotatable around the hinge. The vertical arm 500 protrudes in a direction orthogonal to the vertical arm 500 to hold the steel coil, A second fixing part 600 which is rotated about the hinge part and is drawn into the vertical arm 500;
Lt; / RTI >
The connecting portion may be a hydraulic actuator, a gas-operated actuator or a full synchronous device,
The fixed port is an electromagnet or rubber pad,
At least two cylindrical rollers are mounted on the outer side of the vertical arm,
And the laser generating unit is mounted vertically downward on the fixed port and the vertical arm lower end.
The method according to claim 1,
Wherein the buffer member comprises one or a combination of a spring type shock absorber, an oil type shock absorber or a gas type shock absorber including a spring, Coil gripper.
delete delete delete delete The method according to claim 1,
Wherein the laser generator is vertically mounted downward so as to output a laser to display a colored bar on the outer surface of the steel coil.
A crane characterized in that it comprises at least one steel coil gripper according to any one of claims 1, 2 and 7.

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