KR20100131305A - Multi type adjustable magnetic lifter for steel coil - Google Patents

Abstract

PURPOSE: A multi-type adjustable magnetic coil lifter is provided to minimize the damage of an attached object since symmetrically arranged magnetic poles are attached to the outer surface of the attached object. CONSTITUTION: A multi-type adjustable magnetic coil lifter comprises a housing, a central body, a side body, a plurality of poles(130,140), a lift, a rotating unit and a sensing unit(180). The central body is connected to the center of the housing. The side body is connected to both sides of the housing to be hinge-rotated. The poles are arranged on the central body and the side body, comprise curved parts(132), which make contact with the outer surface of a cylindrical attached-object, and attach/detach the attached object by the magnetic force. The lift ascends/descends the poles. The rotating unit rotates the housing. The sensing unit senses the rotating angle of the housing. The pole of the central body is lifted and the side body is hinge-rotated in the housing.

Description

Multi-type variable magnetic coil lifter {MULTI TYPE ADJUSTABLE MAGNETIC LIFTER FOR STEEL COIL}

The present invention relates to a magnetic lifter used for moving and stacking steel coils, and more particularly, to a steel coil of various standards, which can be rotated by a rotating unit, and is easy to stack. It relates to a coil lifter.

In general, a magnetic lifter (magnetic lifter) is used to attach and detach the skin deposits, such as steel coils by magnetic force, and is used when the skin deposits are fixed and moved after being connected to a transfer device such as a crane.

By the way, steel coil products, which are generally wound and rolled in steel mills, vary in size and weight. In terms of diameter, the smaller ones reach 700mm and the larger ones reach 2100mm, and the smaller ones weigh about 10 tons and the heavy ones exceed 20 tons.

Hereinafter, the structure of a conventional magnetic lifter will be described.

1 is a view showing the structure of a conventional magnetic lifter in the manner of being attached to the side.

The conventional magnetic lifter shown in FIG. 1 is focused on the fact that both sides have a flat plane even though the diameters vary, and the side of the flat surface is magnetically attached so that the side of the flat surface is moved upward and moved and stacked. Has structure for

As shown, it is used with the flat side of the skin complex 1 placed facing upwards. The conventional lifter 5 includes a magnet 2 and a connecting ring 3, and the connecting ring 3 is fixed to the hook 6 of the crane. That is, the lifter 5 is configured to control the detachable attachment, and the lifter 5 is connected to a transfer device such as a separate crane.

Looking at the operation process to operate the transfer device such as a crane to position the lifter 5 on the upper surface of the skin attachment (1), and then operate the lifter (5) to fix the skin attachment (1) by the magnetic force of the magnet (2) Thereafter, the lifter 5 to which the skin deposit 1 is attached is moved and accumulated to a desired position by operating the transfer device, and the magnetic force of the magnet 2 is blocked to separate the skin deposit 1 from the lifter 5. It works.

By the way, the magnet is attached to the side by side, even if the winding state of the steel coil, which is a skin adherend, there is a slight protruding part on the side, so that the protruding part is deformed when the magnet 2 is attached. Had problems.

Due to these problems, a method of moving and stacking the circumferential surface with a magnet has been proposed.

2 is a view showing the structure of a conventional magnetic lifter attached to the outer peripheral surface.

As shown, the conventional lifter 30 which magnetically fixes the outer circumferential surface is provided with the magnetic pole 32 which attaches the skin complex 1 by magnetic force. The magnetic pole 32 has an attachment surface 34 corresponding to the outer circumferential surface of the skin deposit 1.

In addition, another type of steel coil lifter has a type of fixing the inner diameter of the steel coil in a hook manner.

Figure 3 is a view showing the structure of a conventional lifter of the method of fixing the inner diameter of the steel coil, Figure 4 is a view showing a steel coil loading state for using the lifter of FIG.

As shown in the drawing, the lifter 40 of the method of fixing the inner diameter has a structural ratio between the arm part 42 descending along both sides of the steel coil and the hook part 44 bent from the arm part 42, and the hook part ( 44) is inserted into the inner diameter to provide a structure for transporting and stacking steel coils.

According to the coil lifter according to the related art, since the attachment surface must be completely in close contact with the outer circumferential surface of the skin adherend, sufficient adhesion can be obtained. Therefore, for the adherends having different specifications of the outer circumferential surface, the magnetic poles corresponding to the same have to be replaced.

In addition, when using an electromagnet as a magnet, the power is attached to the electromagnet to attach the skin complexes and the power is cut off to separate the skin complexes. Had a problem that the skin complexes fall. One way to improve this was to have a secondary battery power source in case of a power outage.

On the other hand, the lifter of the fixed method by hanging the inner diameter has the advantage that can correspond to the steel coil of various specifications, but because a lot of load is applied to the hook portion, there is a problem that the steel coil of the part in contact with it is damaged, In this case, since the arm part of the lifter is required to enter and exit between the steel coils, when storing a plurality of steel coils, there is a problem that the efficiency of the loading space is inferior because the skin complexes can be arranged.

Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, and an object thereof is to provide a multi-type variable magnetic coil lifter capable of responding to a skin complex having various specifications and preventing damage of the skin complex.

Another object of the present invention is to provide a multi-type variable magnetic coil lifter having a structure in which a skin complex does not fall due to sudden power failure or the like by using a permanent magnet.

Another object of the present invention is to provide a multi-type variable magnetic coil lifter which can improve the loading efficiency per unit area by minimizing the damage of the skin complex by the structure attached to the upper outer peripheral surface of the skin complex.

Another object of the present invention is to provide a multi-type variable magnetic coil lifter that is easy to transport and stack by a rotating structure.

The multi-type variable magnetic coil lifter according to the present invention includes: a housing portion, a central magnetic body portion coupled to the center of the housing portion, side magnetic body portions coupled to the hinge portions on both sides of the housing portion, and a central magnetic body portion and side surfaces. A lifting device for lifting and lowering a plurality of magnetic poles disposed on the magnetic body part and contacting the outer circumferential surface of the cylindrical skin deposit, and lifting and lowering the magnetic poles provided on the magnetic body of the plurality of magnetic poles. And a rotating part for rotating the housing part and a sensing part for detecting a rotation angle of the housing part provided at the upper part of the housing part, and allowing the curved part of each magnetic pole to contact the outer circumferential surface of the skin complex having various outer diameters. The magnetic pole is raised and lowered and the side magnetic D unit is characterized in that the hinge pivoting in the housing part.

In addition, the present invention provides a housing portion, a pair of central magnetic body portions hingedly coupled to the center of the housing portion, side magnetic body portions hingedly coupled to both sides of the housing portion, and the central magnetic body portion and the side magnetic body. Lifting device and housing disposed in the portion, having a curved surface portion in contact with the outer circumferential surface of the cylindrical skin deposit, and lifting and lowering the plurality of magnetic poles for attaching and detaching the skin deposit with magnetic force, and the magnetic pole provided in the central magnetic body portion The magnetic pole provided in the upper portion of the rotating portion for rotating the housing and the sensing unit for detecting the rotation angle of the housing portion, the magnetic pole of the central magnetic body portion so that the curved portion of each magnetic pole to the outer peripheral surface of the skin complex having a variety of outer diameter Lower and lower side magnetic body part It characterized in that the hinge pivoting in jingbu.

In addition, the magnetic pole has a curved surface portion, and a contact pole for transmitting magnetic force by contacting the surface of the skin deposit, a fixed permanent magnet providing an attachment magnetic force to the contact pole, and an attached magnetic force when the curved portion of the magnetic pole is attached to the skin deposit. It provides a magnetic force to reinforce the structure, and when the desorption of the skin complex, the polarity is switched to wrap the variable permanent magnet and the variable permanent magnet to provide a magnetic force to cancel the attached magnetic force, the polarity to convert the polarity of the variable permanent magnet when the power is supplied It characterized in that it comprises a coil for switching.

In addition, the magnetic pole is characterized in that it comprises a permanent magnet having a magnetic force, and an electromagnet disposed so as to cancel the magnetic force of the permanent magnet when the power is supplied.

In addition, the coil of the electromagnet is characterized in that it is formed to surround a portion of the permanent magnet.

In addition, the magnetic pole is characterized by consisting of an electromagnet that generates a magnetic force when the power is supplied.

In addition, the side magnetic body portion is provided with a hinge shaft, the housing portion is provided with a hinge hole corresponding to the hinge axis, characterized in that the side magnetic body portion is hinged relative to the housing portion by the hinge axis and the hinge hole.

In addition, the plurality of magnetic poles provided in each magnetic body part may be arranged such that adjacent magnetic poles provided in the same magnetic body part have different polarities.

In addition, the plurality of magnetic poles provided in each of the magnetic body parts may be arranged such that the magnetic poles disposed on different magnetic body parts to face each other have different polarities.

In addition, the central magnetic body portion and the side magnetic body portion is characterized in that each of the four magnetic poles are provided.

In addition, the housing portion is characterized in that it comprises a pair of plates, connecting rods connecting the plates.

In addition, the plate is characterized in that it has a symmetrical shape.

In addition, the housing portion is characterized in that the distance sensor for preventing the collision of the magnetic pole and the skin is provided.

In addition, the magnetic body portion is characterized in that the damage prevention portion is further provided to prevent damage of the skin complexes when the skin complexes are attached.

In addition, the damage prevention portion is coupled to each end of the pair of buffer cylinder and a pair of buffer cylinder formed to protrude downward on the outer edge of each of the magnetic body portion, the pair of buffer cylinder interconnected, rotatably coupled It characterized in that it comprises a guide roller.

In addition, the lifting device is characterized in that it comprises a lifting gear, a pinion gear connected to the lifting motor and a rack gear connected to the magnetic pole.

In addition, the rotating part is connected to the upper portion of the housing, the rotary bracket protruding in the upward direction, the drive bracket provided on the upper portion of the rotating bracket to be rotatably connected to the rotating shaft, the drive motor and the drive motor provided in the drive bracket Rotating the rotating shaft by the power of the drive bracket characterized in that it comprises a drive connecting portion for rotating the rotating bracket.

In addition, the detector is provided in the rotating unit is characterized in that the encoder for detecting the rotation angle of the housing.

The rotating unit may further include an auxiliary detecting unit detecting a rotation angle of the rotating shaft in the driving bracket.

In addition, the auxiliary detecting unit is characterized in that it comprises a proximity sensor protruding on one side of the rotating shaft, and the inner side of the driving bracket on the inner side of the driving bracket to be adjacent to the proximity projection during rotation of the rotating shaft, thereby detecting the rotation angle of the rotating shaft.

As described above, the multi-type variable magnetic coil lifter according to the present invention, unlike the conventional invention, provides a structure in which magnetic poles disposed on both sides are attached to the outer circumferential surface of the skin deposit to minimize damage to the skin deposit. Bring it.

In addition, the central magnetic body portion and the side magnetic body portion on which the magnetic pole is disposed provide a hinged structure, and the magnetic pole of the central magnetic body portion provides a structure that can be lifted and lowered, so that it is easy to operate in response to skin attachments of various standards. And quick detachable effect.

In addition, the outer edge of the magnetic body portion is provided with a guide roller which is a damage preventing portion has an effect of preventing the coil from being damaged by the end of the magnetic pole.

In addition, the magnetic pole is composed of permanent magnets and electromagnets, and when the power is not supplied, the skin complexes are attached to the magnetic poles by the magnetic force of the permanent magnets.When the power is supplied, the magnetic force of the electromagnet cancels the magnetic force of the permanent magnets when the power is supplied. By providing a structure that can be detached from the magnetic pole, only a power source is required for separation, resulting in an efficient use of energy.

In addition, it is possible to change the angle of the housing by the rotating part has the advantage that can be attached and deposited regardless of the direction of attachment and deposition.

In addition, it is possible to give an accurate angle by the sensing unit and the auxiliary detecting unit during the rotation of the housing portion, and has the effect of providing a more accurate angle by the angle detection by the secondary.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a multi-type variable magnetic coil lifter according to the present invention.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. 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 the specification.

5 and 6 are a perspective view and an exploded perspective view showing a multi-type variable magnetic coil lifter according to a first embodiment of the present invention.

As shown, the multi-type variable magnetic coil lifter 100 according to the first embodiment of the present invention is the central magnetic body portion 110, the side magnetic body portion 120, the elevating device 150, the housing portion ( 160, the rotating unit 180, and the sensing unit 190.

The multi-type variable magnetic coil lifter 100 according to the present invention is used to move the skin complex 20 (material attached to the magnetic having a cylindrical shape such as steel coil). The approximate operation is to attach the skin complex 20 to the central magnetic body portion 110 and the side magnetic body portion 120 with an attached magnetic force and move to a desired place, and then cancel the skin complex 20 by offsetting the magnetic force. .

In this case, the housing unit 160 may be rotated at a desired angle by the rotation unit 180 to be deposited in a desired direction in the deposition direction of the skin deposit 20.

The multi-type variable magnetic coil lifter 100 is connected to the connector 199 to the rotating unit 180, the connector 199 is connected to a transfer device, such as a separate crane.

That is, the multi-type variable magnetic coil lifter 100 hangs on a crane and serves to detach and attach the adherend 20 by magnetic force.

The housing part 160 supporting the central magnetic body part 110 and the side magnetic body part 120 preferably has a symmetrical shape. The pair of side magnetic body parts 120 arranged in symmetrical shapes on both sides of the housing part 160 are hingedly coupled to the housing part 160, and the central magnetic body part 110 disposed in the center of the housing part 160 is hinged. The hinge may be rotatably coupled, or may be coupled in a fixed state without rotation.

The housing portion 160 is formed by a pair of plates 162 coupled to the connecting rod 164 and hinges corresponding to the side magnetic body portion 120 and the hinge axes 112 and 122 of the central magnetic body portion 110. The ball 163 is provided.

6, the connecting rod 164 penetrates the plate 162, and the penetrating portions 164 are fastened using a fastening means 165 such as a nut, but is not necessarily limited thereto. Other structures may be fixed by inserting a fastening bolt or the like into the connecting rod 164 from the outside of the plate 162 or a method such as welding may be used.

The plate 162 has hinge holes 122 to which side magnetic body parts 120 are rotatably coupled to lower portions of both sides thereof. The plate 162 is preferably symmetrical so that the entire center of gravity can be located in the center, it may have a trapezoidal shape as shown, or may have another shape such as a rectangle.

In addition, the connecting rod 164 provided in the lower center of the connecting rod 164 is provided with a distance sensor 170 for preventing the collision of the magnetic pole 140 and the skin deposit 20.

The central magnetic body part 110 is disposed at the center of the housing part 160, and the side magnetic body part 120 is disposed at both sides of the central magnetic body part 110, so that the center magnetic body part 110 is centered. The left and right are configured in a symmetrical form.

The central magnetic body part 110 and the side magnetic body part 120 each have a magnetic pole 140. The magnetic pole 140 controls the attachment magnetic force by the fixed permanent magnet 134, the variable permanent magnet 136, and the polarity switching coil 138. A detailed configuration will be described later.

The magnetic pole 140 provided in the central magnetic body part 110 is coupled to the center magnetic body part 110 so as to be lifted and lowered.

In addition, the magnetic pole 140 provided in the side magnetic body part 120 is fixed to the side magnetic body part 120, thereby being hinged together with the side magnetic body part 120.

That is, the magnetic pole 140 of the central magnetic body portion 110 is moved up and down, the magnetic pole 140 of the side magnetic body portion 120 is hinged together with the side magnetic body portion 120, the skin attachment ( By adjusting the position of each magnetic pole 140 in response to the outer diameter of 20), it is possible to secure a contact area with respect to the skin complex 20.

Magnetic poles 140 have a curved portion 142 at the bottom. The curved portion 142 is a portion in direct contact with the outer circumferential surface of the skin complex 20. The radius of curvature of the curved portion 142 may preferably have a radius of curvature corresponding to the multi-type variable magnetic coil lifter 100 so as to be in close contact with the skin complex 20 having the maximum outer diameter that can be handled. For example, if the maximum outer diameter of the skin complex 20 that can be handled is 2600mm, the curved portion 142 is formed to have a radius of curvature of 1300mm.

The side magnetic body portion 120 is coupled to the housing portion 160 by the hinge shaft 122, so that hinge rotation is possible with respect to the housing portion 160. In this case, there is no separate driving means for rotating the side magnetic body 120, but the hinge is coupled to be rotatable by its own weight. In the case of a simple hinge coupling, the position of the skin complex 20 is not attached depending on the center of gravity.

7 and 8 are a perspective view and an exploded perspective view showing a multi-type variable magnetic coil lifter according to a second embodiment of the present invention.

In the case of the first embodiment described above, the central magnetic body part 110 is provided with one structure, whereas the second embodiment has a structure in which two central magnetic body parts 110 are provided.

The central magnetic body 110 is disposed at the center of the housing 160, and the side magnetic body 120 is provided at both sides of the central magnetic body 110.

The central magnetic body 110 has a structure in which the magnetic pole 140 can be lifted and lowered as in the previous embodiment, and the magnetic pole 140 of the side magnetic body 120 is disposed on the side magnetic body 120. It is fixed and hinged with respect to the side magnetic body portion 120 and the housing portion 160.

The central magnetic body portion 110 of the second embodiment is hingedly coupled to the housing portion 160. In the first embodiment, since the central magnetic body 110 is one, it may have a structure in which the hinge is not rotated. However, in the second embodiment, the central magnetic body 110 must be fixed with respect to the housing 160. The hinges must be combined to pivot.

Accordingly, the magnetic pole 140 of the central magnetic body part 110 of the second embodiment is hinged with respect to the housing part 160 together with the central magnetic body part 110, and furthermore, to the central magnetic body part 110. It has a structure that can move up and down.

Except for this difference, the housing 160, the central magnetic body 110, and the side magnetic body 120 have the same configuration and function.

9 and 10 are cross-sectional view showing a side magnetic body portion according to an embodiment of the present invention.

Side magnetic body portion 120 is disposed in a symmetrical form on both sides is provided with a magnetic pole (140). The magnetic pole 140 includes a plurality of contact poles 143, a fixed permanent magnet 144, a variable permanent magnet 146, and a polarity switching coil 148.

The contact pole 143 is in direct contact with the surface of the skin complex 20 has a curved portion 142, the magnetic force of the fixed permanent magnet 144 and the variable permanent magnet 146 to the skin complex 20 To pass.

The fixed permanent magnet 144 always maintains a constant polarity and magnetic force regardless of whether power is supplied.

In addition, the variable permanent magnet 146 provides polarities in opposite directions when power is supplied to the polarity switching coil 148 and when power is not supplied. For example, when no power is supplied, the surface contacting the contact pole 143 has the polarity of the N pole. When power is supplied, the surface contacting the contact pole 143 has the polarity of the S pole. The polarity changing property of the variable permanent magnet 146 allows the variable permanent magnet 146 and the fixed research magnet 144 to provide the same polarity or the opposite polarity to the contact pole 143. When the same polarity is provided to the contact poles 143, as shown in FIG. 9, the contact poles 143 generate an attachment magnetic force, and when polarities in opposite directions are provided to the contact poles 143, As the magnetic force is canceled, as shown in FIG. 10, the contact pole 143 may have a weak magnetic force or no magnetic force.

9 illustrates a state in which power is not supplied to the polarity switching coil 148. The fixed permanent magnet 144 and the variable permanent magnet 146 provide the same magnetic force to one contact pole 143. .

10 illustrates a state in which the polarity of the variable permanent magnet 146 is switched by supplying power to the polarity switching coil 148, and the fixed permanent magnet 144 and the variable permanent magnet 146 have opposite polarities. The magnetic force is not transmitted to the contact pole 143.

11 is a cross-sectional view showing a magnetic body portion according to another embodiment of the present invention.

This embodiment shows a case where the magnetic pole 240 is composed of a permanent magnet 242 and an electromagnet 244. Each magnetic pole 240 includes a permanent magnet 242 and an electromagnet 244. In the case of this embodiment, the attached magnetic force is provided by the permanent magnet 242, the electromagnet 244 operates to cancel the magnetic force of the permanent magnet 242.

That is, the skin complex 20 is attached to the electromagnet 244 in a state in which no power is supplied, and power is supplied to the electromagnet 244 to separate the skin complex 20. This structure only needs to supply power to the electromagnet 244 at the time of separation, thereby reducing the power consumed by the equipment, thereby increasing energy efficiency.

Then, the permanent magnets 242 are arranged to have different polarities between adjacent permanent magnets 242 (the letter in the center of the permanent magnet in the figure indicates the polarity of the permanent magnet). That is, they are alternately arranged to have an N pole and an S pole. When adjacent permanent magnets 242 have the same polarity with each other, the magnetic force does not work efficiently due to the repulsive force between the polarities.

The electromagnet 244 is disposed to have a polarity opposite to that of each permanent magnet 242 when the power is supplied (indicated by the outline letters (N, S) inside the electromagnet in FIG. Indicates). When the electromagnet 244 is operated to have a polarity opposite to the permanent magnet 242 to cancel the magnetic force of the permanent magnet 242.

When the magnetic pole 240 is composed of a permanent magnet 242 and an electromagnet 244 as shown, the magnetic force of the permanent magnet 242 acts on the skin complex 20 in the state that power is not supplied to the skin complex 20 is attached to the magnetic pole 240, if the power is supplied to the contrary, since the magnetic force of the permanent magnet 242 is offset by the magnetic force of the electromagnet 244, the skin complex 20 is not attached to the magnetic pole 240 Do not.

In the illustrated embodiment, the magnetic pole 240 is a combination of the permanent magnet 242 and the electromagnet 244, but only the electromagnet 244 may be used. When only the electromagnet 244 is used, a magnetic force is generated when power is supplied, and when the power is cut off, the magnetic force is extinguished.

12 is a cross-sectional view showing a central magnetic body portion according to an embodiment of the present invention.

The central magnetic body part 110 also has a magnetic pole 140 similar to the side magnetic body part 120. However, the magnetic pole 140 of the side magnetic body portion 120 has a fixed structure, whereas the magnetic pole 140 of the central magnetic body portion 110 has a structure capable of lifting up and down.

Although the magnetic pole 140 is the same in that it comprises a plurality of contact poles 143, fixed permanent magnet 144, variable permanent magnet 146 and the polarity switching coil 148, magnetic pole 140 ) Is raised and lowered by the whole lifting device 150.

To this end, the central magnetic body portion 110 includes an inner case 115 and an outer case 117. The outer case 117 is hingedly coupled to or fixed to the housing part 160, and the inner case 115 is connected to the lifting device 150 to move up and down with respect to the outer case 117.

The elevating device 150 is engaged with the pinion gear 154 and the pinion gear 154 coupled to the elevating motor 152 and the elevating motor 152 fixed to the outer case 117 and the inner case 115. It is configured to include a rack gear 156 fixed to. When the lifting motor 152 rotates, the pinion gear 154 rotates to raise and lower the inner case 115 connected to the rack gear 156. Therefore, the central magnetic body unit 110 provides a structure in which the magnetic pole 140 can move up and down.

In this embodiment, the elevating device 150 is constituted by the combination of the elevating motor 152, the pinion gear 154, the rack gear 156, which shows an embodiment of one elevating device 150 It is not limited to the configuration and may have other structures capable of lifting up and down. For example, a linear motor may be used, another lifting device may be used, or a lifting device using pneumatic or hydraulic pressure may be applied. In addition, the lifting structure using the cylinder may be applied.

The magnetic pole 140 lifting structure of the central magnetic body part 110 is to secure the maximum contact area between the magnetic pole 140 and the skin complex 20. If the magnetic pole 140 of the central magnetic body portion 110 does not move up and down, even if the magnetic pole 140 of the side magnetic body portion 120 is hinged, it is difficult to secure the maximum contact area.

FIG. 13 is a bottom view illustrating a polarity arrangement of the magnetic pole according to the first embodiment of the present invention, and FIG. 14 is a bottom view illustrating the polarity arrangement of the magnetic pole according to the second embodiment of the present invention.

As shown, the magnetic poles 140 disposed on the magnetic body parts 110 and 120, respectively, are arranged such that the magnetic poles 140 facing each other have different polarities. As described above in the description of FIGS. 9 to 10, it is to reduce the loss due to the repulsive force between the same polarity. In the above embodiments of the present invention, although four magnetic poles 140 are provided in one magnetic body part 110 and 120, respectively, the number of magnetic poles 140 is the strength of the magnetic force or the skin to be handled. The size of the complex 20 or the outer peripheral surface may be changed depending on the width.

15 and 16 are a perspective view and a front view showing a state in which the multi-type variable magnetic coil lifter according to the first embodiment of the present invention attached a steel coil of the maximum standard.

As shown, the curved portion 142 of the magnetic pole 140 provided in the central magnetic body portion 110 and the side magnetic body portion 120 corresponds to the outer diameter 20 of the maximum size that can be handled It has a radius of curvature.

Therefore, when the curved type portion 142 of the magnetic pole 140 touches the skin complex 20 by lowering the multi-type variable magnetic coil lifter 100, the side magnetic body portion 120 does not rotate in that state. The entire area of the curved portion 142 of the pole 140 is completely in contact with the outer circumferential surface of the skin deposit 20.

In this case, the most powerful magnetic force acts when the entire surface of the curved portion 142 is in close contact. The maximum outer diameter that the multi-type variable magnetic coil lifter 100 can handle is determined by the radius of curvature of the curved portion 140, and the maximum weight that can be handled is when the entire surface of the curved portion 140 contacts. Magnetic force is the weight that can be supported.

At this time, the side magnetic body portion 120 to prevent the damage of the skin complex 20 by the damage preventing portion 130 when the skin complex 20 is attached.

The damage prevention unit 130 is coupled to each end of the pair of buffer cylinders 132 and the pair of buffer cylinders 132 protruding downward from the outer edges of the side magnetic body parts 120, respectively, The buffer cylinder 132 is interconnected, and comprises a guide roller 134 rotatably coupled.

That is, when the skin complex 20 is attached, the guide roller 134 is formed to protrude downward from the pointed portion of the curved portion 142 of the magnetic pole 140 so as to be in contact with the outer diameter of the skin complex 20 first, thereby providing the magnetic pole. The pointed end of 140 is to prevent the skin complex 20 from being damaged.

At this time, the guide roller 134 is moved by a predetermined interval in the vertical direction by the buffer cylinder 132 it is possible to mitigate the impact even when the guide roller 134 and the skin complex 20 in contact.

The multi-type variable magnetic coil lifter 100 according to the present invention includes a central magnetic body part 110 at the center of the housing part 160 and a side magnetic body part 120 which is hinged at a position symmetrically on both sides thereof. This provides a structure that can be attached in correspondence with the outer diameter of the skin complex 20.

Multi-type variable magnetic coil lifter 100 according to the present invention has a symmetrical shape, the center of gravity is placed in the center. When the skin complex 20 is attached to the magnetic poles 140 of the magnetic body parts 110 and 120 of both sides, the skin complex 20 is contacted to have a maximum contact surface with the magnetic poles 140 of symmetrical positions. Since the center of gravity of the skin complex 20 and the center of gravity of the multi-type variable magnetic coil lifter 100 are placed on the same vertical surface, no separate centering is required.

17 is a front view showing a state in which the multi-type variable magnetic coil lifter according to the first embodiment of the present invention is attached with a small size steel coil.

As shown, in the case of attaching the skin complex 20 having a smaller size than the maximum specification, the magnetic pole 140 of the central magnetic body part 110 may have a maximum contact area with the outer diameter of the skin complex 20. Ascending, the magnetic pole 140 of the side magnetic body portion 120 rotates inward with the side magnetic body portion 120. The side magnetic body portion 120 is formed by its own weight, not by a separate driving means that rotates with respect to the housing portion 160. In the prior art, a method of moving the magnetic to a separate driving means was used. Such a conventional method requires a precise operation and takes a considerable time for the operation.

18 and 19 are front views showing the use state of the multi-type variable magnetic coil lifter according to the second embodiment of the present invention.

FIG. 18 illustrates a state in which the adherend 20 of the maximum size is attached, and FIG. 19 illustrates a state in which the adherend 20 of the minimum size is attached.

As shown in FIG. 18 or 19, in the case of attaching the skin complex 20 having the maximum size, the central magnetic body 110 and the side magnetic body 120 are completely in close contact with the outer circumferential surface of the skin 20. Can provide the maximum attachment magnetic force.

When attaching the minimum size of the skin complex 20, the side magnetic body 120 is rotated inward toward the center of the skin complex 20, the central magnetic body 110 is the magnetic pole 140 Attached in an elevated state, the central magnetic body 110 is also rotated inward.

Through the rotation of each of the magnetic body parts 110 and 120 and the lifting and lowering control of the magnetic pole 140 of the central magnetic body part 110, the magnetic poles 140 are attached to the skin complexes 20 of various outer diameters. It is to secure the maximum contact area.

On the other hand, Figure 20 is a view showing the operation of the rotating part of the multi-type variable magnetic coil lifter according to an embodiment of the present invention.

The multi-type variable magnetic lifter 100 according to the present invention may be transported and stacked by changing the angle of the housing 160 by the rotating unit 180.

Rotating portion 180 is provided on the upper portion of the housing 160, the rotating bracket 182 is connected to the upper portion of the housing 160, the rotating shaft 183 protrudes in the upward direction, and the rotating bracket 182 The rotating shaft 183 is rotated by the power of the driving bracket 184 provided on the top and rotatably connected to the rotating shaft 183, and the driving motor 186 and the driving motor 186 provided on the driving bracket 184. It comprises a drive connecting portion 188 for rotating the rotating bracket 182 in the drive bracket 184.

The rotating shaft 183 of the rotating bracket 182 is formed to protrude toward the driving bracket 184 and penetrates the driving bracket 184 vertically and is rotatably coupled by a bearing.

In addition, the drive connecting portion 188 is preferably a spur gear. That is, the rotating shaft is composed of an electric gear 188a connected to the driving motor 186 and a driven gear 188b formed on the rotating shaft 183 and engaged with the electric gear 188a. By rotating the 183, the housing portion 160 connected to the lower portion of the rotating bracket 182 is rotated by a predetermined angle.

A connector 199 is formed at an upper portion of the driving bracket 184 to serve to connect the multi-type variable magnetic coil lifter 100 to a transfer device such as a crane. The connector 199 is connected to a transfer device such as a crane, but such a connection will be omitted by a detailed description of this part because it is obvious to those skilled in the art.

21 is a view illustrating a sensing unit of a multi-type variable magnetic coil lifter according to an exemplary embodiment of the present invention. The rotating unit 180 is provided with a sensing unit 190 that detects the rotation angle of the housing unit 160.

The sensing unit 190 is an encoder provided in the rotating unit 180 to detect a rotation angle of the housing unit 160.

The encoder is preferably an absolute encoder capable of detecting a rotation angle of the rotation shaft 183.

Looking at the configuration of the encoder, as shown in Figure 21 is connected to the rotary shaft 183 and the shaft of the encoder is a detector for converting the rotational displacement amount of the shaft into electrical digital and analog signals is a kind of optical sensor.

That is, it is an optical sensor that detects the mechanical movement amount or displacement and converts it into an electrical signal. As the X shaft rotates once, a certain number of pulses are generated in the state of Analogue signal. It detects the position, speed and angle of the automatic control system.

As such, the rotation angle of the rotation shaft 183 may be detected by the encoder, thereby controlling the rotation angle of the housing 160.

And, Figure 22 is a view showing an auxiliary sensing unit of the multi-type variable magnetic coil lifter according to an embodiment of the present invention.

As shown in FIG. 22, an auxiliary sensing unit 195 is provided at the rotating unit 180 to detect a rotation angle of the rotating shaft 183 at the driving bracket 184.

The auxiliary detecting unit 195 is provided on the inner side of the protruding protrusion 196 protruding on one side of the rotation shaft 183, the driving bracket 184 is adjacent to the proximity protrusion 196 when the rotating shaft 183 is rotated It includes a proximity sensor 198 for detecting the rotation angle of the rotating shaft 183.

Therefore, by detecting the rotation angle of the housing unit 160 in the detection unit 190 consisting primarily of the encoder, and secondly by detecting the rotation angle of the housing unit 160 by the auxiliary detection unit 195, Precise control is possible because the correct rotation angle can be detected.

As described above, since the housing part 160 connected to the magnetic body parts 110 and 120 may be rotated by the rotating part 180, the housing part 160 may be rotated by the rotating part 180 even if the direction of the skin fitting 20 is changed. It is possible to attach by changing the angle of, and the stacking direction can also be stacked by rotating in the desired direction.

23 and 24 are views showing a steel coil loading state using the multi-type variable magnetic coil lifter according to the first embodiment of the present invention.

As shown, the multi-type variable magnetic coil lifter 100 according to the present invention is attached through the upper portion of the skin complex 20, even if the skin complex 20 is stored without space without any problem The complex 20 can be attached and moved. In addition, as shown, since the steel coil, which is the skin deposit 20, can be stacked without gaps, the steel coil can be stacked and stored in two or more stages. Furthermore, the angle of the housing 160 by the rotating unit 180 can be stored. By changing, the loading direction can be adjusted and loaded as desired.

This is in stark contrast to the conventional FIG. 4, and as the conventional lifter as shown in FIG. 4 requires a space for the arm to enter and exit, the lifter may be used only when a certain space is secured between the outer circumferential surfaces of the steel coil. This is related to the efficient use of the limited space, and when using the magnetic coil lifter 100 according to the present invention has the effect of significantly increasing the number of steel coils that can be stored per unit area.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims.

1 is a view showing the structure of a conventional magnetic lifter in the manner of being attached to the side,

2 is a view showing the structure of a conventional magnetic lifter of the method attached to the outer peripheral surface,

3 is a view showing the structure of a conventional lifter of the method of fixing the inner diameter of the steel coil by walking,

4 is a view showing a steel coil loading state for using the lifter of FIG.

5 is a perspective view showing a multi-type variable magnetic coil lifter according to a first embodiment of the present invention;

6 is an exploded perspective view showing a multi-type variable magnetic coil lifter according to a first embodiment of the present invention;

7 is a perspective view showing a multi-type variable magnetic coil lifter according to a second embodiment of the present invention;

8 is an exploded perspective view showing a multi-type variable magnetic coil lifter according to a second embodiment of the present invention;

9 and 10 are cross-sectional view showing a side magnetic body portion according to an embodiment of the present invention,

11 is a cross-sectional view showing a magnetic body portion according to another embodiment of the present invention;

12 is a cross-sectional view showing a central magnetic body portion according to an embodiment of the present invention;

FIG. 13 is a bottom view showing a polarity arrangement of a magnetic pole according to a first embodiment of the present invention; FIG.

14 is a bottom view showing the polarity arrangement of the magnetic pole according to the second embodiment of the present invention;

15 is a perspective view showing a state in which the multi-type variable magnetic coil lifter according to the first embodiment of the present invention is attached with a steel coil of the maximum standard;

16 is a front view showing a state in which the multi-type variable magnetic coil lifter according to the first embodiment of the present invention is attached with a steel coil of the maximum standard;

17 is a front view showing a state in which the multi-type variable magnetic coil lifter according to the first embodiment of the present invention is attached with a small size steel coil;

18 and 19 are front views showing a state of use of the multi-type variable magnetic coil lifter according to the second embodiment of the present invention;

20 is a view showing the operation of the rotating part of the multi-type variable magnetic coil lifter according to an embodiment of the present invention,

21 is a view showing a sensing unit of a multi-type variable magnetic coil lifter according to an embodiment of the present invention;

22 is a view showing an auxiliary sensing unit of the multi-type variable magnetic coil lifter according to an embodiment of the present invention;

23 and 24 are views showing a steel coil loading state using the multi-type variable magnetic coil lifter according to the first embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: multi-type variable magnetic coil lifter 110: magnetic body part

112: hinge shaft 120: damage prevention unit

122: cylinder 124: guide roller

130, 140: magnetic pole 132: curved portion

134: fixed permanent magnet 136: variable permanent magnet

138: polarity switching coil 142: research magnet

144: electromagnet 150: housing

152: bracket 153: hinge ball

154: connecting rod 155: fastening means

160: distance sensor 170: rotation part

172: rotating bracket 173: rotating shaft

174: drive bracket 176: drive motor

178: drive connection unit 180: detection unit

190: auxiliary detection unit 192: proximity projection

194: proximity sensor 195: connector

Claims (20)

A housing part; A central magnetic body coupled to the center of the housing; Side magnetic body parts coupled to both sides of the housing to be hinged; A plurality of magnetic poles disposed on the central magnetic body portion and the side magnetic body portion, the curved portion contacting the outer circumferential surface of the cylindrical skin complex and detaching the skin complex by magnetic force; An elevating device for elevating a magnetic pole provided in the central magnetic body part; A rotating part provided on the housing part to rotate the housing part; And A sensing unit sensing a rotation angle of the housing unit; The magnetic pole of the central magnetic body portion is raised and lowered and the side magnetic body portion is hinged in the housing portion so that the curved portion of each magnetic pole may contact the outer circumferential surface of the skin complex having various outer diameters. Magnetic coil lifter. A housing part; A pair of central magnetic body parts hingedly coupled to the center of the housing part; Side magnetic body parts coupled to both sides of the housing to be hinged; A plurality of magnetic poles disposed on the central magnetic body portion and the side magnetic body portion, the curved portion contacting the outer circumferential surface of the cylindrical skin complex and detaching the skin complex by magnetic force; An elevating device for elevating a magnetic pole provided in the central magnetic body part; A rotating part provided on the housing part to rotate the housing part; And A sensing unit sensing a rotation angle of the housing unit; The magnetic pole of the central magnetic body portion is raised and lowered and the side magnetic body portion is hinged in the housing portion so that the curved portion of each magnetic pole may contact the outer circumferential surface of the skin complex having various outer diameters. Magnetic coil lifter. The method according to claim 1 or 2, The magnetic pole has a curved portion and a contact pole for transmitting a magnetic force in contact with the surface of the skin complexes; A fixed permanent magnet providing an attachment magnetic force to the contact pole; A variable permanent magnet that provides a magnetic force that reinforces an attached magnetic force when the curved portion of the magnetic pole is attached to the skin complex, and provides a magnetic force that is reversed in polarity when the skin complex is detached to offset the attached magnetic force; And Wrapping the variable permanent magnet, multi-type variable magnetic coil lifter comprising a polarity switching coil for converting the polarity of the variable permanent magnet when power is supplied. The method according to claim 1 or 2, The magnetic pole is a multi-type variable magnetic coil lifter comprising a permanent magnet having a magnetic force, and an electromagnet disposed so as to cancel the magnetic force of the permanent magnet when power is supplied. The method of claim 4, wherein The coil of the electromagnet is a multi-type variable magnetic coil lifter, characterized in that formed to surround a portion of the permanent magnet. The method according to claim 1 or 2, The magnetic pole is a multi-type variable magnetic coil lifter, characterized in that made of an electromagnet that generates a magnetic force when the power is supplied. The method according to claim 1 or 2, The side magnetic body portion has a hinge shaft, the housing portion has a hinge hole corresponding to the hinge axis, the side magnetic body portion is hinged relative to the housing portion by the hinge shaft and the hinge hole Type variable magnetic coil lifter. The method according to claim 1 or 2, The plurality of magnetic poles provided in each of the magnetic body portion is a multi-type variable magnetic coil lifter, characterized in that the adjacent magnetic poles provided in the same magnetic body portion are arranged to have different polarities. The method of claim 8, The plurality of magnetic poles provided in each of the magnetic body parts are arranged in different magnetic body parts, the magnetic pole of the multi-type variable magnetic coil lifter, characterized in that arranged to have different polarities. The method according to claim 1 or 2, The central magnetic body portion and the side magnetic body portion of the multi-type variable magnetic coil lifter, characterized in that each of the four magnetic poles are provided. The method according to claim 1 or 2, The housing unit is a multi-type variable magnetic coil lifter, characterized in that it comprises a pair of plates, connecting rods connecting the plates. The method of claim 11, The plate is a multi-type variable magnetic coil lifter, characterized in that it has a symmetrical shape. The method according to claim 1 or 2, The housing part has a multi-type magnetic coil lifter, characterized in that the distance sensor for preventing the collision of the magnetic pole and the skin deposit is provided. The method according to claim 1 or 2, Multi-magnetic variable magnetic coil lifter is characterized in that the magnetic body portion is further provided with a damage preventing portion to prevent damage of the skin complexes when the skin complexes are attached. 15. The method of claim 14, The damage prevention unit includes a pair of buffer cylinders protruding downward on the outer edge of each of the magnetic body parts; And a guide roller coupled to each end of the pair of buffer cylinders to interconnect the pair of buffer cylinders and rotatably coupled to each other. The method according to claim 1 or 2, The lifting device is a lifting motor; A pinion gear connected to the lifting motor; And Multi-type variable magnetic coil lifter comprising a rack gear connected to the magnetic pole. The method according to claim 1 or 2, The rotating part is connected to the upper portion of the housing, the rotary bracket protruding in the upward direction; A driving bracket provided on an upper portion of the rotating bracket to be rotatably connected to the rotating shaft; A driving motor provided in the driving bracket; And And a drive connecting portion rotating the rotary shaft by the power of the drive motor to rotate the rotary bracket on the drive bracket. The method according to claim 1 or 2, The sensing unit is a multi-type variable magnetic coil lifter, characterized in that the encoder provided in the rotating unit for detecting the rotation angle of the housing unit. The method of claim 17, The rotating unit further comprises an auxiliary sensing unit for detecting the rotation angle of the rotating shaft in the drive bracket multi-type variable magnetic coil lifter. The method of claim 19, The auxiliary sensing unit is a protruding protrusion protruding on one side of the rotation axis; The multi-type variable magnetic coil lifter is provided on four inner sides of the driving bracket and adjacent to the proximity projection when the rotation shaft rotates, thereby detecting a rotation angle of the rotation shaft.

Images