KR100514802B1 - lifting apparatus for unloading and moving - Google Patents

Abstract

The present invention relates to a lifting device for unloading work that can prevent safety accidents during unloading work, reduce logistics costs, and in particular, to minimize product damage. The present invention provides a lifting device for an unloading operation, which is connected to a rotatable hook and used to move an article during an unloading operation, comprising: an auxiliary beam connected to the hook; A plurality of wire ropes connected to a lower portion of the auxiliary beam; A support beam connected to a lower end of the wire rope, mounted horizontally with a size larger than that of the auxiliary beam, and having a through part vertically penetrating at both ends thereof; A pair of hydraulic cylinders having a piston end positioned at a through part of the support beam and a body end rotatably mounted to the support beam; A pair of arms having an upper end rotatably connected to the piston end of the hydraulic cylinder and the support beam through the through-hole of the supporting beam, respectively, and having a lower portion inserted into the inner diameter of the article to move the article. It provides a lifting device for the unloading operation comprising an arm.

Description

Lifting apparatus for unloading and moving}

The present invention relates to a lifting device installed in an unloading machine to facilitate the unloading operation, and more particularly, to prevent safety accidents during unloading operations, to reduce logistics costs, and in particular, to minimize product damage. And a lifting device for unloading work.

In order to transport goods produced in steel mills, for example, coil (5) products, they are transported from the warehouse to the pallet (4) and placed on the pier, and docked at the pier using an unloading machine (not shown). Coil will be shipped to the vessel to be shipped by sea.

Figure 1 is a state diagram showing the working state and problems of the conventional file hanger damping (2) device used for the unloading operation. As shown in Fig. 1 (a), the coils loaded in the warehouse are loaded on the pallet 4 at regular intervals and moved to the pier. For this purpose, after installing the string damping device (2) in the rotary hook (7) of the unloading machine, the worker hooks the hook fiber belt 22 to the auxiliary hook (21), the operator to raise the hook (7) coil Will be moved.

At this time, as the coils 5 and the coils that are stacked in both grooves of the pallet 4 are pulled, the outer diameter portions are in contact with each other so that product damage such as the band 51 surrounding the coils is damaged or the contact portions are damaged. do. (See Fig. 1 (b))

In addition, when moving two coils having different sizes of products as shown in FIG. 1 (c) by using a file hanger belt, a small coil file hanger belt is pulled first, and an impact between coils is severely generated, and in the hold of the ship. When the coil is shipped with the belt rolled up, a rolling phenomenon occurs in which the coil moves without stopping in place, resulting in various risks such as damage to the coil product and a safety accident.

As shown in FIG. 1 (d), when the coil is hung on one coil, the force of the string is applied to both sides of the coil inner circumference ring 52 so that the inner circumferential ring portion of the coil is deformed, and a defect occurs even during the painting of the finished product. There is a problem.

Figure 2 is a view showing the working state and problems of the conventional coil lifting device used in the unloading operation. In the operation using the coil lifter 3 as shown in FIG. 2 (a), the motor 31 and the screw gear device 32 are installed on the coil lifter so that the arms 33 on the left and right sides are constantly opened or retracted. This is a form of work to lift and move the coil.

However, in this operation, when lifting the coils of different sizes, as shown in FIG. 2 (b), a phenomenon in which the coil and the arm are shaken from side to side during the operation occurs, whereby the coils collide with each other. This causes damage not only to the inner diameter of the coil but also to the outer diameter part. If the size of the product is different, the coil may be rolled in the ship's hold and fail to settle in place.

In addition, in the operation of moving one coil as shown in FIG. 2 (c), the two shoes 34 are inserted into the coil inner diameter 53 to be wound up while the arms 33 of the lifter 3 are collected from each other. . In this operation, only the outer part of the shoe 34 contacts the inner diameter of the coil 53 to cause deformation and damage. In the state in which the arms 33 are collected, the width of the shoe 34 is widened so that a coil having a predetermined size or more is provided. There is a limitation that only work can be done, followed by damage to the inner diameter due to coil flow during the loading work in the ship hold 6.

In addition, as shown in FIG. 2 (d), when the single or double lifter 3 is loaded in the hold 6, the loading operation is performed in a narrow space when the lifter arm 33 or the shoe 34 is opened. There is a risk of collision with the coil, which causes a problem of damage to the product.

Therefore, in order to solve this problem, the coil inner circumferential ring 52 is used to further strengthen the product, and also performs a loading operation by inserting a buffer pad (not shown), but the effect is insignificant, in particular, the hold of the ship ( 6) It is impossible to prevent the risk of product damage and safety accidents due to collision or rolling during the unloading work. In addition, there was an urgent need for a solution to increase logistics costs due to excessive input of workers.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a lifting device for unloading leaves, which makes the unloading work easier in the coil loading operation using the unloading machine.

In addition, the present invention prevents the deformation of the coil inner circumference ring during the unloading operation and prevents the breakage of the band surrounding the coil, due to the damage caused by the impact between the coils when hoisting the two coils and the rolling when unloading in the ship hold It aims to prevent the occurrence of product damage and to prevent the increase of logistics costs and safety accidents due to excessive staff input when working on the hanger.

As a construction means for achieving the above object, the present invention is connected to a rotatable hook used in the lifting operation for unloading work to move the article, an auxiliary beam connected to the hook; A plurality of wire ropes connected to a lower portion of the auxiliary beam; A support beam connected to a lower end of the wire rope, mounted horizontally with a size larger than that of the auxiliary beam, and having a through part vertically penetrating at both ends thereof; A pair of hydraulic cylinders having a piston end positioned at a through part of the support beam and a body end rotatably mounted to the support beam; A pair of arms having an upper end rotatably connected to the piston end of the hydraulic cylinder and the support beam through the through-hole of the supporting beam, respectively, and having a lower portion inserted into the inner diameter of the article to move the article. It provides a lifting device for the unloading operation comprising an arm.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Figure 3 is a perspective view of the lifting device for unloading operation according to the present invention, Figure 4 is a cross-sectional view of the lifting device of FIG. 7 is an exploded view of the driving unit of the lifting device of Figure 3, Figure 8 is an exploded view of the arm of the lifting device of FIG.

The lifting device for unloading operation according to the invention is used suspended from the rotatable hook 7. The hook 7 is rotatable 360 degrees and is rotated by the motor 8 connected to the upper side.

The auxiliary beam 100 having a rectangular box shape is connected to the hook 7. The fixing block 103 protrudes upward to surround both sides of the hook 7 on the upper side of the auxiliary beam 100, and the fixing block 103 is inserted into the hook portion of the hook to prevent the hook from falling out. 102 is mounted. Under the auxiliary beam 100, a ring 104 is connected to one end of the wire rope 101 through a fixing pin 105. In the present embodiment, four wire ropes 101 are connected to each corner portion of the auxiliary beam 100, respectively.

The support beam 200 is horizontally connected to the lower end of the wire rope 101 with a size larger than that of the auxiliary beam 100. On the upper surface of the support beam 200 is formed a wire fixing block 206 for connecting with the wire rope 101, the wire rope is connected to be rotatable through the wire fixing block. The support beam 200 is formed in a rectangular box shape like the auxiliary beam 100. Penetrations are formed vertically at both ends of the support beam 200. The end of the C-shaped arm 400 to be described later is inserted into the through portion. In addition, the hydraulic cylinder 300 for moving the arm is mounted on the upper surface of the support beam 200.

The hydraulic cylinder 300 is fixed to the plate block 308 while being inserted into the plate beam 303 which is erected perpendicular to the upper surface of the support beam. The plate beam 303 is connected via the pin 307 to be rotatable to the plate block 308. The hydraulic cylinder 300 includes a piston 305 that is advanced back and forth through the hydraulic pressure, the end of the piston 305 is equipped with a U-shaped connecting ring 310. On the support beam 200, a pair of mounting structures of the hydraulic cylinder and the hydraulic cylinder thus formed are formed. The pistons 305 of the pair of hydraulic cylinders 300 are located opposite to each other, the connecting ring 310 of the piston end is located on the through portion 250 of the support beam 200.

The upper end of the arm 400 is inserted into the through part 250 of the support beam 200. Arm 400 is divided into a lower portion constituting the C-shaped body and an upper portion extending to the upper side. An upper portion of the arm 400 is inserted into the through part 250 and rotatably coupled to the connecting ring 310 connected to the piston of the hydraulic cylinder 300 through a pin. In addition, in order to support the lower portion of the arm to move by the forward and backward action of the hydraulic cylinder, the lower portion of the portion connected to the connecting ring 310 is rotatable with the support beam 200, the fixed shaft 201 And via a fixed key 204.

The lower portion of the arm 400 is formed in a C-shaped, the upper portion of the C-shaped portion is mounted with a fixed stopper 405 to limit the displacement of the arm to move left and right. A rubber rubber 401 is fixed to the inner upper portion of the C-shaped arm through a fixing bolt 406, and a rubber or similarly elastic cushioning member 402 is fixed to the inner vertical portion through a spring 407 on the rear side. Is mounted. In addition, the lower arm 404 of the C-shaped arm is fixed with a plurality of threaded bolts 410 to the liner 409 to keep in contact with the article. The upper surface of the lower arm 404 portion of the C-shaped arm has a curvature so as to protrude toward the upper side and is formed in a half moon shape, and has a cross section formed so as to become narrower toward the lower side. The lower end of the arm also has a protective pad 403 for cushioning. The inner arm of the article 5, such as a coil, is brought into contact with the lower arm 404 thus formed.

4 illustrates a state in which the arm 400 is rotatably connected to the support beam 200 through the fixed shaft 201. 5 is a perspective view of arm 400. As described above, the upper portion of the arm 400 is inserted into the through part 250 of the support beam 200 and is connected to the end of the hydraulic cylinder 300 mounted on the support beam 300 and the pin (pin) ( 312). In addition, the fixed shaft 201 is inserted below the connecting portion of the connecting ring and the arm, the fixed shaft 201 is mounted to the support beam 200 through the bearing (202).

FIG. 6 illustrates a state in which the hydraulic cylinder 300 is rotatably mounted to the plate block 308 formed on the upper surface of the support beam 200 while being fixed to the plate beam 303. In addition, the arm of the lifting device according to the present invention may be equipped with a sensor 411 for confirming the position of the coil, the distance between the arm and the arm.

Referring to the drawings the operation of the lifting device for unloading work according to the present invention as described above is as follows.

9 (a) and 9 (b) are working state diagrams when the lifting device in FIG. 3 is used for movement of one coil. When carrying out the coil loading operation using the lifting device according to the present invention, there is a case where the driver moves only one coil according to the working conditions of the pallet 4 and the working conditions in the ship holder 6. At this time, by operating the hydraulic cylinder 300 by the driver's operation to push the piston on the left and right. Accordingly, the arm 400 is rotated by a predetermined angle about the fixed shaft 201 of the support beam 200, so that the lower 404 portions of the arm contact each other. At the same time, the fixed stopper 405 of the upper portion of the arm is in close contact with the lower portion of the support beam 200, the operation of the hydraulic cylinder 300 is stopped.

The driver then inserts the lower arm 404 into the inner diameter of the moving article, such as a coil, and lifts the lifting device as the operator induces. Accordingly, the inner side of the coil and the lower arm 404 are in contact with each other to lift the coil.

When carrying a single coil using the lifting device according to the present invention, unlike the conventional coil lifting device shown in Figure 2, the phenomenon that the internal diameter of the coil is damaged because the arm is inserted into the coil with a certain angle formed Is prevented.

10 (a) and 10 (b) are working state diagrams when the lifting device of FIG. 3 is used to move two coils of the same size. In this case, the distance between the lower arms 404 is adjusted by manipulating the hydraulic cylinder according to the distance between the coils or the working conditions. The lower arm 404 is then inserted into the inner diameter of the coil and the coil is slowly hoisted to move to the desired position.

According to the lifting device of the present invention there is an advantage that the gap between the coils can be kept constant because there is no flow of the arm in the process of carrying two coils as described above. It is also possible to further widen the arm distance when carrying the coil so that collisions between the coils do not occur.

11 (a) to 11 (c) are working state diagrams when the lifting device of FIG. 3 is used to move two coils of different sizes. In the condition that the size of the coil is not constant, the left and right arms must be moved at different angles, unlike in the case of the work of FIGS. 9 and 10. In FIG. 11 (a), the hydraulic cylinder on the left side is pulled to move the arm 400a on the left side outward, and the hydraulic cylinder is operated when the lower arm 404 comes in a position that can be inserted into the inner diameter of each coil. Stop and insert the lower arm into the coil to lift it.

As shown in FIG. 11B, when the distance between the coils is small, the arm 400a on the left side needs to be adjusted to move to the other coil side. For this purpose, the hydraulic cylinder on the left side pushes the arm out. Similarly, when the lower arm 404 comes in a position that can be inserted into the inner diameter of the coil, the lower arm is inserted into the inner diameter of the coil and the coil is lifted up.

In the conventional case, a problem arises in that the position of the arm is closer to the coil due to the difference in the center position (see Fig. 2 (b)), in this case the coils collide with each other when the coil is moved up. This causes a problem that the coil is damaged and the coil movement becomes difficult. However, the lifting device according to the present invention places each arm at a position that fits exactly at the center of the coil, thereby preventing the coils from interfering with each other and preventing the collision of the arms, and also using a hydraulic cylinder to fix the position of the arms. Therefore, there is an advantage that can prevent the coil from shaking while moving.

As described above, according to the present invention, it is possible to provide various effects of moving one or two coils without damaging the coils according to the holding conditions or the work of the vessel.

In addition, the present invention prevents the deformation of the coil inner circumference ring during the unloading operation and prevents the breakage of the band surrounding the coil, due to the damage caused by the impact between the coils when hoisting the two coils and the rolling when unloading in the ship hold It prevents product damage and prevents an increase in logistics costs and safety accidents due to excessive staff input when working on a hanger.

While the invention has been shown and described with respect to particular embodiments, it will be understood that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

1 (a) to (d) is a view showing the state and problems of the operation using a conventional hanger damping device during the unloading operation.

Figure 2 (a) to (d) is a view showing the working state and problems of the conventional coil lifting device during the unloading operation.

Figure 3 is a perspective view of the lifting device for unloading work according to the present invention.

4 is a cross-sectional view of the lifting device of FIG. 3.

5 is a perspective view of the arm of the lifting device of FIG. 3;

6 is a side view of the hydraulic cylinder of the lifting device of FIG. 3.

7 is an exploded view of the driving unit of the lifting device of FIG.

8 is an exploded view of the arm of the lifting device of FIG.

FIG. 9 is a working state diagram when the lifting device of FIG. 3 is used for moving one coil. FIG.

10 is a working state diagram when the lifting device of FIG. 3 is used to move two coils of the same size.

FIG. 11 is a working state diagram when the lifting device of FIG. 3 is used to move two coils of different sizes.

Explanation of symbols on main parts of drawing

2; String damper 3; Coil lifter

4; Pallet 5; coil

6; Ship hold 7; Rotary hook

100; Auxiliary beam 101; Wire rope

200: support beam 201; Fixed shaft

300; Hydraulic cylinder 310; T-shaped link

400: cancer 402; Buffer member

Claims (4)

In the lifting device for unloading operation is connected to the rotatable hook used to move the goods during unloading operation, An auxiliary beam connected to the hook; A plurality of wire ropes connected to a lower portion of the auxiliary beam; A support beam connected to a lower end of the wire rope, mounted horizontally with a size larger than that of the auxiliary beam, and having a through part vertically penetrating at both ends thereof; A pair of hydraulic cylinders having a piston end positioned at a through part of the support beam and a body end rotatably mounted to the support beam; A pair of arms having an upper end rotatably connected to the piston end of the hydraulic cylinder and the support beam through the through-hole of the supporting beam, respectively, and having a lower portion inserted into the inner diameter of the article to move the article. Lifting device for unloading operation comprising an arm. According to claim 1, wherein the pair of hydraulic cylinders are mounted so that the pistons are arranged in opposite directions to each other so that the ends of the pair of arms respectively connected to the piston through the forward and backward movement of the piston of the pair of hydraulic cylinders to open or gather. Lifting device for unloading work, characterized in that moving. The lifting device for unloading work according to claim 1, wherein the inner surface of the C-shaped arm is equipped with a shock absorbing member that can cushion a shock when contacted with a coil. The cross section of the lower portion of the C-shaped arm has a substantially inverted triangular cross-sectional shape having a shape in which the upper surface protrudes with a predetermined curvature toward the upper portion and the width thereof becomes smaller toward the lower portion. Lifting device for unloading.