KR20090092064A - Board lifting system - Google Patents

Abstract

A board lifting system is provided to perform locking quickly and accurately by coupling a guide member guiding a locking member. A board lifting system comprises a middle beam(100), a main beam(300), a lifting member(700R,700L) and a guide member(240). The ascending middle beam has a sheave in which the winding wire of a crane is wound. The lifting member is arranged in the main beam. The locking member locks the main beam in the middle beam. The middle beam guides the guide member in the locking point of the main beam. The locking member comprises a hook and a hanging ring. The hook is installed at the middle beam. The hanging ring is installed at the main beam and hangs on the hook.

Description

Board lifting system

The present invention relates to a plate lifting system capable of selectively locking a vacuum adsorption lifter or a magnetic adsorption lifter to a middle beam that is lifted by a crane and can be transferred to one crane according to the type or weight of the plate.

Conventionally, a crane that lifts a plate and loads it on a truck or the like is largely classified into a vacuum adsorption lifter lift transport crane and a magnet lifter lift transport crane.

The vacuum adsorption lifter is a device for vacuum adsorption of a non-ferrous or light steel sheet, etc. individually, and the magnet lifter is a device that magnetically adsorbs multiple sheets (or a heavy one) of steel, that is, steel sheets, and the like.

The sheave pulley is installed on the main beam of the vacuum suction type lifter and the main beam of the magnet lifter, and the winding wire of each crane is wound. That is, one end of the winding wire is installed in the winding drum of the crane, and the other end is fixed to the crane.

Therefore, a vacuum adsorption lifter is used for the non-ferrous plate, such as a stainless plate and an aluminum plate, and a magnet lifter is mainly used for the iron plate, such as a steel plate.

Therefore, conventionally, a first line to which the vacuum suction lifter lift transport crane is transported and a second line to which the magnet lifter lift transport crane is transported are required. do.

If a vacuum adsorption lifter lift transport crane and a magnet lifter lift transport crane are installed on one line (line break), the steel plate loading truck and the non-ferrous plate loading truck should be correctly aligned with the crane position with the loading entrances on both lines. There is a hassle to do. If this is not done correctly, the vacuum adsorption lifter lifter crane cannot pass over the magnet lifter lifter crane and the loading is impossible.

In addition, since vacuum suction pads or magnets are fixedly arranged at regular intervals, there is a limit to be applied only to the transfer of a plate having a uniform length.

The present invention has been made in order to solve the above-described problems, an object of the present invention is to provide a plate lifting system that can lift and transfer the plate of non-ferrous or ferrous material with one crane.

In order to solve the above problem, the plate lifting system according to claim 1 of the present invention,

A lifting middle beam having a sheave to which the winding wire of the crane is wound; Main beam; A lifting member disposed on the main beam; And a locking member for locking the main beam to the middle beam.

According to this configuration, since the middle beam is attached to and detached from the main beam by the locking member, the vacuum suction lifter or the magnetic suction lifter can be transferred by one crane.

The plate lifting system according to claim 2 of the present invention,

And a guide member for guiding the middle beam to the locking position of the main beam.

According to this configuration, the positioning of the locking member can be performed quickly, thereby significantly reducing the locking time and improving productivity.

The plate lifting system according to claim 3 of the present invention,

The locking member is composed of a hook that is installed on the middle beam, and the hook is installed on the main beam and caught on the hook; The locking ring includes a locking pin caught by the hook, and an arm having one end pivotably installed at the other end while supporting both ends of the locking pin; The hook is provided with a release preventing ring for preventing the release of the locking pin; The guide member includes a guide rod protruding downward from the middle beam, and a guide portion installed on the main beam to guide the guide rod; The guide part includes an accommodating part accommodating the guide rod and a funnel-shaped inclined guide part installed at an upper end of the accommodating part to guide the lower end of the guide bar to the accommodating part; The main beam is characterized in that the mounting bracket for mounting the arm to maintain a predetermined slope in the state in which the locking pin is released.

According to this structure, it is easy to manufacture because it has a simple structure of locking and releasing.

As apparent from the above description, according to the present invention, by placing a middle beam, by selectively using a lifter and a magnet lift during vacuum adsorption with one crane, it is possible to transfer nonferrous or ferrous plates in one line.

Further, by adopting and engaging a guide member for guiding the locking member, locking can be performed quickly and accurately.

1 and 2 are a front view and a right side view showing a state in which the middle beam is installed in the crane according to the present embodiment.

3 is a plan view of the middle beam;

4 is a front view of a vacuum suction plate lifting system (middle beam and vacuum suction lifter).

5 and 6 are a front view and a plan view of the vacuum suction lifter with the shuttle beam extended.

7 to 9 are front, plan and right side views of the vacuum suction lifter with the shuttle beam reduced.

10 and 11 are front and top views of the main beam.

12 and 13 are front, top and side views showing the shuttle beam frames on the left and right sides.

14 and 15 are a front view and a plan view showing the shuttle beam driving member.

16 and 17 are front and plan views illustrating a power transmission member of the shuttle beam driving member.

18 and 19 are front and side views of the guide sprocket assembly of the shuttle drive member beam.

20 and 21 are front and side views of the left shuttle roller assembly.

22 and 23 are front and side views of the right shuttle roller assembly.

24 and 25 are front and side views of the pad roller assembly.

26 is a front view of the pad assembly.

27A and 27B are plan views showing the power cylinder in the approaching and retracting state of the pad rollers;

28 is a plan view showing a state of use of the power cylinder.

29 to 31 are front, top, and right side views of the magnetic attraction plate lifting system (middle beam and magnetic attraction lifter), in which the shuttle beam is expanded;

32 to 33 are views of the state in which the shuttle beam is contracted in a front view and a plan view of a magnetic attraction plate lifting system (middle beam and magnetic attraction lifter);

34 and 35 are front and top views of the main beam.

36A-36D are cross-sectional views of FIG. 34.

37 and 38 are a front view and a plan view of the shuttle beam.

FIG. 39 is a cross sectional view taken along a line E-E 'in FIG. 37; FIG.

40 and 41 are front and sectional views of the magnet hanger assembly.

Fig. 42 is a front view showing the shuttle beam drive member.

43A-43D are cross-sectional and front views of FIG. 42;

44 is a front view for showing driving of the shuttle beam and the magnet hanger.

<Description of the symbols for the main parts of the drawings>

VLS: Vacuum Suction Plate Lifting System

MLS: Magnetic Adsorption Plate Lifting System

VL: Vacuum Suction Plate Lifter ML: Vacuum Suction Plate Lifter

100: middle beam 120, 220: locking member

240: guide portion 260: female cradle

300,1300: main beam

400,1400: Shuttle beam 500,1500: Shuttle beam driving member

700,1700: Lifting member 900,1900: Distance adjusting member

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Middle beam 100

1 and 2 are a front view and a side view showing a state in which the middle beam is installed in the crane according to the present embodiment, Figure 3 is a plan view of the middle beam.

As shown in Figures 1 to 3, the middle beam 100 of the present embodiment is composed of a sieve 111, 113, the sheave frame 110, the sheave 111, 113 is rotatably supported have.

Sheaves 111 and 113 are wire pulleys for overhead cranes.

The cable bucket 130 and the cable connector panel 150 are installed at the upper and lower portions of the sheave frame 110.

The cable bucket 130 serves as a basket for storing the cable, and there is a cone 131 therein, so that the cable is not twisted well and is unwound even in a wound state.

The cable connector panel 150 serves to supply electricity to the vacuum suction lifter 300 or the magnetic suction lift 600 described below.

As shown in FIGS. 1 and 2, the middle beam 100 is connected to and fixed to the wire crane wire W for lifting up and down. In other words, one end of the wire W is fixed to the overhead crane winding drum RD, and the other end is fixed to the fixing bracket FB via the sheave 111, the sheave IS, and the sheave 113, and are elevated.

In addition, hooks 120 are provided at both ends of the sheave frame 110. Since the hook 120 is caught by the hook 220 of the vacuum suction lifter VL or the magnetic suction lift ML described below, the hook 120 can be lifted together with the vacuum suction lifter VL or the magnetic suction lift ML. . The hook 120 may be rotatably provided with a release preventing ring 125 that prevents the hook ring 220 from being separated.

Since the middle beam 100 is fixed to the crane it can work by selectively locking the vacuum suction lifter (VL) or the magnetic suction lift (ML). Therefore, it is possible to transfer the non-ferrous or ferrous plate material with one crane.

In addition, it is preferable that the guide rod 140 is installed at both ends of the sheave frame 110. The guide rod 140 is guided to the guide portion 240 of the vacuum suction lifter VL or the magnetic suction lift ML, which will be described later, so that the locking position of the hook 120 and the locking ring 220 is well fitted. It is preferable.

Vacuum Suction Plate Lifting System (VLS)

4 is a front view showing a vacuum suction plate lifting system (middle beam and vacuum suction lifter), FIGS. 5 and 6 are a front view and a plan view of a vacuum suction lifter with an extended shuttle beam, and FIGS. 7 to 9 are shuttles Front, top and right side views of the vacuum suction lifter with reduced beams.

As shown in Fig. 4, the vacuum suction plate lifting system VLS of the present embodiment is composed of a middle beam 100 and a vacuum suction lifter VL.

The vacuum suction type lifter VL is locked and released to the middle beam 100 by the hook 120 and the catching ring 220.

As shown in FIGS. 5 to 9, the vacuum suction type lifter VL includes the left and right shuttle beams 400L and 400R with respect to the main beam 300, the left and right shuttle beams 400L and 400R, and the main beam 300. Shuttle beam driving member 500 for sliding, and the vacuum pad lifting member 700 is disposed on the shuttle beam (400L, 400R). In addition, the vacuum suction lifter VL is preferably provided with a power cylinder 900 for sliding the vacuum pad lifting members 700L and 700R with respect to the shuttle beams 400L and 400R.

As shown in FIG. 11, the main beam 300 includes a pair of I beams 301 and 302 having a predetermined length, and a connecting member 305 to 308 connecting the I beam 301 and the I beam 302. ).

The shuttle beams 400L and 400R are constituted by the left shuttle beam 400L of FIG. 12 and the right shuttle beam 400R of FIG. 13. The length LL of the left shuttle beam 400L is preferably equal to the length LR of the right shuttle beam 400R.

The left shuttle beam 400L and the right shuttle beam 400L are symmetrical in shape except that they have different widths, and thus the left shuttle beam 400L will be described.

The left shuttle beam 400L is composed of a pair of I beams 401L and 402L similar to the main beam 300, and a connecting material 405L to 408L connecting the I beam 401L and the I beam 402. have.

The I beams 401L and 402L of the left shuttle beam 400L are located directly below the I beams 301 and 302 of the main beam 300, as shown in FIG. 9, and of the right shuttle beam 400R. I beams 401R and 402R are located below the inside of the I beams 301 and 302 of the main beam 300.

In this arrangement, since the width W of the left shuttle beam 400L is wider than the width w of the right shuttle beam 400R (W> w), the left shuttle beam 400L and the right shuttle beam 400L are Approaching each other results in overlapping intervals (OL).

Therefore, the connecting members 405L to 408L on the left side and the connecting members 405R to 408R on the right side are disposed in the non-overlapping sections as shown in FIGS. 12 and 13.

That is, in the case of the vacuum adsorption type, since the adsorption force is smaller than that of the magnetic adsorption type, many vacuum adsorption pads are provided. Therefore, the length of each shuttle beam (400L, 400R) is long to overcome the constraints of space or it is preferable to have a section (OL) overlap each other in order to correspond to the short length of the plate.

The left and right shuttle beams 400L and 400R are slidably supported by the left and right support roller members 450L and 450R on the main beam 300.

As shown in FIGS. 9, 21, and 22, the left support roller member 450L includes a roller member 460 for slidably supporting the left shuttle beam 400L, and the roller member 460 as the main beam. The roller support member 480 which supports each I beam 301 and 302 of 300 is comprised.

The roller member 460 includes an upper roller 461 and a lower roller 463 disposed on the upper and lower surfaces of the upper flanges of the I beams 401L and 402L of the left shuttle beam 400L, and the upper and lower rollers 461 and 463. It is composed of shafts (462, 464) rotatably supported through the bearings (465, 466).

The roller support member 480 has a roller bracket 481 supporting the shafts 462 and 464, and a top bracket 483 fixed to the upper surface of the I beams 301 and 302 while connecting the roller bracket 481. It consists of.

In addition, the roller bracket 481 is supported by the connecting plate 487 to the reinforcing plate 485 for connecting the upper and lower flanges of the I beams 301 and 302.

The upper roller 461 is cut off at both ends of the lower flanges of the I beams 301 and 302 so that the upper rollers 461 are mounted on the upper surface of the upper flanges of the I beams 400L and 400R. .

On the other hand, it is preferable that the interval correction member 470 is provided to adjust the position of the upper surface roller 461 to correct the manufacturing error.

That is, the gap correction member 470 slides along the long hole 471 while supporting the upper and lower long holes 471 formed in the upper bracket 483, the shaft 462 disposed in the long holes 471, and the slider. It consists of the operation part 475 which operates (473).

The slider 473 is composed of a support plate 473a supporting the shaft 463 and a vertical plate 473b perpendicular to the support plate 473a.

The operation unit 475 is fixed to the bolt fixing piece 475b by fastening with the bolt 475a for pushing or lowering the vertical plate 473b, the bolt fixing piece 475b installed on the upper bracket 470, and the bolt 475a. It consists of the nut 475c.

The right support roller member 450R has a similar structure and function to the left support roller member 450L as shown in FIGS. 9, 22, and 23, but the upper surface of the I beam 301 of the main beam 300. The difference is that it is supported by the H beam 482 which is fixed between the top surface of the I beam 302.

In addition, the roller bracket 481 and the roller bracket 481 are connected and reinforced by the direct connection plate 487 'instead of the reinforcement plate 485.

The left and right support roller members 450L and 450R may slidably support the shuttle beams 400L and 400R with respect to the main beam 300.

As shown in Figs. 14 and 15, the shuttle beam driving member 500 is composed of a left shuttle beam driving member 500L and a right shuttle beam driving member 500R.

The right shuttle beam driving member 500R includes a drive shaft 510R installed near the center of the main beam 300, a first sprocket 511R and a second sprocket 513R mounted on the drive shaft 510R, and a first sprocket ( The drive gear 515R installed between the 511R and the second sprocket 513R, the guide sprocket 517R installed at the right end of the main beam 300, the second sprocket 513R and the guide sprocket 517R are connected to each other. One end and the other end of the shaft are composed of a chain 523R fixed to the fastening brackets 519R and 521R of the shuttle beam 400R.

The guide sprocket 517R is supported through a bearing on the shaft 518R supported by the connecting member 306.

The first sprocket 511R is connected to the drive sprocket 503 of the drive motor 501 by the drive chain 505.

Similarly, the left shuttle beam driving member 500L is driven to engage with the drive shaft 510L installed near the center of the main beam 300, the third sprocket 513L mounted on the drive shaft 510L and the drive gear 515R. One end and the other end of the shuttle beam 400L are fastened to the gear 515L, the guide sprocket 517L installed at the left end of the main beam 300, and the third sprocket 513L and the guide sprocket 517L. It is composed of a chain 523L fixed to 521L).

The guide sprocket 517L is supported through a bearing on the shaft 518L supported by the connecting member 305.

The left and right shuttle beam driving members 500L and 500R having such a configuration operate as follows.

As shown in FIG. 5, the operation of approaching each other at the minimum distance Lmin as shown in FIG. 7 while the shuttle beams 400L and 400R maintain the maximum distance Lmax between the two ends evicted from each other will be described.

When the motor 501 rotates forward, when the first sprocket 511R is rotated through the chain 502, the drive gear 515R and the second sprocket 513R in the same drive shaft 510R rotate.

The drive gear 515R rotates the driven gear 515L and the third sprocket 513L on the same drive shaft 510L rotates.

Then, the chain 523L and the chain 523R pull the fastening brackets 519L and 519R, and slide the left and right shuttle beams 400L and 400R supported by the left and right roller support members 450L and 450R to each other. Approach

On the contrary, when the motor 501 is rotated in reverse, the chain 523L and the chain 523R pull the fastening brackets 521L and 521R, and the left and right shuttle beams 400L supported by the left and right roller support members 450L and 450R. Sliding (400R) retreats (aways).

The minimum stroke length Lmin and the maximum stroke distance Lmax can be stopped by a limit switch (not shown) so that they can be controlled so that they do not deviate or overlap more.

The left and right lifting members 700L and 700R are provided with vacuum pad members 710 and 730 for vacuum suction of the plate.

The vacuum pad members 710 and 730 are composed of a fixed vacuum pad member 710 fixed to the shuttle beams 400L and 400R, and a movable movable vacuum pad member 730.

The fixed vacuum pad member 710 is disposed at the left end of the shuttle beam 400L and the right end of the shuttle beam 400R.

As shown in FIG. 26, the fixed vacuum pad member 710 includes a vacuum pad 711, a pad fixing bar 713 of an H beam disposed under the shuttle beams 400L, 400R, and a vacuum pad 711. A suspension bolt 715 for supporting the pad fixing bar 713 and a fixing chain 717 for supporting the vacuum pad 711 on the pad fixing bar 713. In addition, the pad fixing bar 713 is supported by the I-beams 301 and 302 by the vertical bar 714 and fixed without moving.

The fixed chain 717 is supported by the bracket 718 welded to the pad fixing bar 713 and the vacuum pad support cover 712.

On the other hand, the vacuum pad support cover 712 is formed with a vacuum port (not shown) connected to the vacuum tank 750.

That is, the vacuum tank 750 and the vacuum pump 770 are mounted on the main beam 300 to maintain or not maintain the vacuum on the vacuum pad 711.

The vacuum tank 750 is connected by a vacuum port (not shown) and a connection hose (not shown).

The movable vacuum pad member 730 is similar in structure and function to the fixed vacuum pad member 710, but differs in that the movable vacuum pad member 730 is supported by the pad roller member 740 which is slidable to the shuttle beams 400L and 400R. .

As shown in FIG. 26, the movable vacuum pad member 730 includes a vacuum pad 713, a pad fixing bar 733 of an H beam disposed below the shuttle beams 400L and 400R, and a vacuum pad 731. A suspension bolt 735 for supporting the pad fixing bar 733 and a fixing chain 737 for supporting the vacuum pad 731 on the pad fixing bar 713.

In addition, the pad fixing bar 733 is supported by the pad roller member 740 through the vertical bar (734).

The vertical bar 734 is fixed by the bracket 749 and the pin P of the pad roller member 740.

Therefore, when the pin P is removed, the vertical bar 734 can be separated from the pad roller member 740.

The fixed chain 737 is supported by the bracket 738 and the vacuum pad support cover 732 welded to the pad fixing bar 733.

The vacuum pad support cover 732 is formed with a vacuum port (not shown) connected with the vacuum tank 750.

The vacuum tank 750 is connected by a vacuum port (not shown) and a connection hose (not shown).

The pad roller member 740 is similar to the left and right roller support members 450L and 450R, as shown in FIGS. 9, 24 and 25, and the upper and lower surfaces of the lower surface flanges of the I beams 401L and 402L and 401R and 402R. The upper and lower shafts 745 and lower shafts 747 supporting the upper and lower rollers 741, lower rollers 743, upper rollers 741, and lower rollers 743 supported through bearings 742 and 744. The side bracket 746 which supports this shaft 745, 747, and the bracket 748 which connects and supports this side bracket 746 are comprised.

Also, like the left and right roller support members 450L and 450R, it is preferable that a gap correction member 470 is provided to correct the gap between the lower roller 743.

The left and right pad roller member 740 needs a distance adjusting member 900 that can adjust the distance Smax (Smin) between the pads 711 and 731 when the shuttle beams 400L and 400R approach and retreat. Do.

In this embodiment, as the distance adjustment member 900, a power switch 900 with a stroke limit limit switch shown in Figs. 27A and 27B is used.

The power cylinder 900 is a mechanism that converts the rotational motion of the motor into a linear motion by combining a motor, a reduction gear, a screw, and the like. Since it generates power by using a motor, it is also called a motor cylinder, and it can control thrust, speed and stroke by driving the motor with only electricity supply without any equipment compared to hydraulic and pneumatic cylinders. .

As shown in FIGS. 27A and 27B, the power cylinder 900 is fastened to the motor 910, a ball screw (not shown) receiving the rotational force of the motor 910, and the ball screw (not shown). A round bar nut 970 and a ball screw and a round bar nut 970 wrap the case 950.

Between the motor 910 and the ball screw (not shown) it is preferable to receive a rotational force through the reduction gear 930. The motor 910 and the reduction gear 930 are supported by the bracket 915.

A knuckle joint 960 is installed at the tip of the round bar nut 970 and fastened to the bracket 965 provided on the center upper surface of the movable pad fixing bar 733 as shown in FIG.

In addition, the round bar 940 fixed to the case 950 is provided with an access limit switch LS1 and a retraction limit switch LS2.

The round bar 980 fixed to the round bar nut 970 is provided with a toucher TC for touching an access limit switch LS1 or a retract limit switch LS2.

Therefore, when the shuttle beams 400L and 400R retreat from each other as shown in FIG. 5, the toucher TS touches the retreating limit switch LS2 as shown in FIGS. 27B and 28, and the distance between the pads is maximum ( Smax).

On the other hand, when the shuttle beams 400L and 400R approach each other as shown in FIG. 7, as shown in FIG. 27A, the round bar nut 970 contracts as much as possible, and the touch point TS touches the access limit switch LS1. The distance between the pads is kept at the minimum (Smin).

As such, when the shuttle beams 400L and 400R approach or retreat, the pad fixing bars 713 and 733 also move to operate the round bar nut 970 while the toucher TC falls from the limit switches LS1 and LS2. .

When the round bar nut 970 is operated, the pad roller member 740 adjusts the gap while sliding along the shuttle beams 400L and 400R.

The power cylinder 900 is supported by the upper and lower brackets 920 as shown in FIGS. 9 and 28, and the upper and lower brackets 920 are supported by the brackets 925 installed on the pad fixing bars 713 and 733. It is.

When the vacuum suction lift (VL) is not in use, it is stored on the floor. At this time, by using an outrigger (height-adjustable pedestal 310) installed in the main beam 300, pads 711 and 731 are provided. Do not press on the floor.

8 and 9, the locking ring 220 includes a pair of arms 221, a hinge shaft 223 and a locking pin 225 installed on the lower end and the arm 221. It consists of. The hinge shaft 223 is supported by the bracket 312 installed in the main beam 300.

In addition, the main beam 300 is preferably equipped with a support base 260 for mounting the arm 221 inclined. The cradle 260 may be locked to the hook 120 with a smaller force by allowing the locking pin 225 to be released from the hook 120 so that the locking ring 220 maintains a predetermined inclination.

Guide bar 140 is preferably implemented as a square bar 140 of a rectangular shape.

The guide portion 240 is preferably composed of an inner surface side guide piece 241 for guiding the inner surface side of the angular bar 140 and one side lateral piece 243 for guiding one side surface of the angular bar 140. . As shown in FIG. 8, symmetrical shapes that face each other are preferable as 'a' or 'L' shapes when viewed in a plane.

Therefore, simply guide the guide rod 140 coming down to each guide portion 240 is received by the receiving portion 245, it is possible to quickly and accurately lock the locking position.

In addition, the guide portion 240 is preferably provided with a funnel-shaped inclined surface 244, so that the guide rod 140 is guided to the receiving portion 245 on the inclined surface 244 even if slightly off.

Magnetic adsorption plate lifting system MLS )

Since the magnetic adsorption plate lifting system MLS is similar in structure and operation to the above-mentioned vacuum adsorption plate lifting system VLS, the same or almost the same parts are given the same reference numerals and detailed description is omitted.

29 to 31 are front, top, and right side views of the magnet adsorptive plate lifting system (middle beam and magnetic adsorptive lifter), in which the shuttle beam is expanded, and FIGS. 32 to 33 are magnetic adsorptive plate lifting systems (middle beam). It is a state diagram in which the shuttle beam is shrunk in a front view and a plan view of a magnetic suction lifter).

As shown in FIGS. 29-33, the magnetic attraction board type lifting system MLS of this embodiment is comprised from the middle beam 100 and the magnetic attraction lifter ML.

The magnetic suction lifter ML is locked to and released from the middle beam 100 by the hook 120 and the locking ring 220.

In addition, the magnetic suction lifter (ML) is the main beam 1300 and the left and right shuttle beam (1400L) (1400R), the shuttle beam driving member 1500 for sliding the shuttle beam (1400L) (1400R) with respect to the main beam (1300), The magnetic lifting members 1710 to 1730 are disposed on the main beams 1300 and the shuttle beams 400L and 400R. In addition, the magnet attraction lifter ML is preferably provided with a magnet distance adjusting member 1900 for controlling the distance between the magnet lifting members 1710 to 1730 together with the approach or retraction of the shuttle beams 400L and 400R. .

As shown in FIGS. 34 and 35, the main beam 1300 includes a pair of I beams 1301 and 1302 having a predetermined length, and a connecting member connecting the I beams 1301 and I beams 1302. 1305-1308.

The main beam 1300 is symmetrical with respect to the cross section A-A '.

In the center of the main beam 1300, a hanger 1733 for hanging the magnet 1731 is fixed as shown in FIG. 36A.

Wheels 1320 are mounted on both lower sides of the main beam 1300 as shown in FIG. 36D. The wheel 1320 slidably supports the lower surfaces of the shuttle beams 1400L and 1400R.

In addition, a pedestal 1310 is installed on the main beam 1300. The connecting member 1308 is provided on the upper surface of the main beam 1300 in which the pedestal 1310 is installed, as shown in FIG. 36B.

In FIG. 36C, a bracket 312 supporting the hook 220 is disposed before and after the main beam 1300, and the bracket 312 is attached to the support bracket 1313 fixed to the main beams 1301 and 1302. Supported.

The shuttle beams 1400L and 1400R are composed of a left shuttle beam 1400L and a right shuttle beam 1400R which are symmetrical to each other. Therefore, the length LL of the left shuttle beam 1400L is preferably equal to the length LR of the right shuttle beam 1400R.

Also, the shuttle beams 1400L and 1400R have the same width as the left shuttle beam 1400L and the right shuttle beam 1400L, unlike the vacuum suction shuttle beams 400L and 400R.

In addition, the shuttle beams 1400L and 1400R are different from the vacuum adsorption shuttle beams 400L and 400R located below the main beam 300, as shown in FIGS. 29 and 32. It is slidably supported inside. Therefore, unlike the vacuum suction shuttle beams 400L and 400R, the left shuttle beam 1400L and the right shuttle beam 1400R do not overlap each other.

That is, in the case of the magnetic adsorption type, the adsorption force is very large as compared with the vacuum adsorption type, so that the magnet does not need to be installed much. Therefore, the length of each shuttle beam (1400L) (1400R) is shortened, there is no need to have a section overlapping each other.

The shuttle beam 1400R is connected to the upper and lower surfaces and the side surfaces of the pair of I beams 1401L and 1402L, and the I beam 1401L and the I beam 402, as in the main beam 1300, and as shown in FIG. The rigidity was increased by having a box-shaped cross section like 39.

37 to 39, a support roller member 1460R sliding along the upper and lower flanges of the main beam 1300 is provided at the tip of the shuttle beam 1400R.

The support roller member 1460R includes an upper support roller member 1460A and a lower support roller member 1460B.

In the upper support roller member 1460A, as illustrated in FIG. 39, the upper roller 1541 is disposed before and after the outside of the shuttle beam 1400.

The upper roller 1541 is rotatably installed at both ends of the upper shaft 1462 fixed to the shuttle beam 1400R through the bearing 1465. Upper shaft 1462 is non-rotating.

In addition, the upper roller 1461 slides while being supported by the rail 1451 provided along the longitudinal direction inside the upper part of the main beam 1300.

In the lower support roller member 1460B, as shown in FIG. 39, the lower roller 1462 is disposed below the shuttle beam 1400.

The lower roller 1462 is fixed to both ends of the lower shaft 1464 so as to lie on the lower flange of the main beam 1300, which lower shaft 1464 shuttles through a bearing housing 1467 with bearing 1466 embedded therein. It is supported at the bottom of the beam 1400R. Lower shaft 1464 is rotatable.

The left and right support roller members 1460L and 1460R and the wheel 1320 may slidably support the shuttle beams 1400L and 1400R with respect to the main beam 1300.

As shown in Figs. 42 to 44, the shuttle beam driving member 1500 is composed of a left shuttle beam driving member 1500L and a right shuttle beam driving member 1500R.

The left shuttle beam driving member 1500L includes a driving shaft 1510L installed near the center of the main beam 1300, a driving sprocket 1511L mounted on the driving shaft 1510L, a driving gear 1515L, and a main beam 1300. Chain (1523L), one end and the other end of which is fixed to the fastening bracket (1519L) (1521L) of the shuttle beam (1400L) while connecting the guide sprocket (1517L), the driving sprocket (1513L) and the guide sprocket (1517L) installed at the left end of the It is composed of

The guide sprocket 1517L is supported through the bearing on the shaft 1518L supported by the bearing BRG of the bearing housing BH.

The drive gear 1515L is engaged with the main drive shaft 1502 connected to the rotation shaft of the motor 1501.

Similarly, the right shuttle beam driving member 1500R fits the driven shaft 1510R installed near the center of the main beam 1300, the driven sprocket 1513R and the driving gear 1515L mounted on the driven shaft 1510R. The clamping bracket of the driven beam 1515R, the guide sprocket 1517R installed at the right end of the main beam 1300, the driven sprocket 1513R and the guide sprocket 1517R, and the other end thereof are fastened to the shuttle beam 1400R. And a chain 1523R fixed to the 1515R and 1521R.

The guide sprocket 1517R is supported by the shaft 1518R supported by the bearing BRG of the bearing housing BH similarly to the guide sprocket 1517L through the bearing.

On the other hand, since the guide sprocket 1517 is fixed to the upper surface of the main beam 1300, it is necessary to adjust the tension of the chain 1523.

That is, the chain tension adjusting member 1470 has a long hole 1471 formed in the upper bracket 1483 supporting the bearing housing BH, an operation unit 1475 for sliding the bearing housing BH along the long hole 1471, It consists of a fastening portion 1473 for fastening the bearing housing (BH) to the upper bracket (1483).

The operation part 1475 is comprised with the bolt 1475a which pushes or loosens the side surface of the bearing housing BH, and the nut 1475c fixed to the said upper bracket 1483. As shown in FIG. Therefore, the rotational force of the bolt 1475a is converted into linear motion by the nut 1475c to press or loosen the bearing housing BH to loosenly adjust the tension.

The left and right shuttle beam driving members 1500L and 1500R having such a configuration operate as follows.

29, the operation of approaching each other at the minimum distance Lmin as shown in FIG. 32 while the shuttle beams 1400L and 1400R maintain the maximum distance Lmax at both ends thereof withdrawn from each other will be described.

When the motor 1501 is rotated forward, the drive sprocket 1510L in the same drive shaft 1510L rotates when the drive gear 1515L rotates the main drive gear 1503.

The drive gear 1515L rotates the driven gear 1515R and the driven sprocket 1513R on the same drive shaft 1510L rotates.

Then, the chain 1523L and the chain 1523R pull the fastening brackets 1519L and 1519R, and slide the left and right shuttle beams 1400L and 1400R supported by the left and right roller support members 1460L and 1460R to each other. Approach.

On the contrary, when the motor 1501 is rotated in reverse, the chain 1523L and the chain 1523R pull the fastening brackets 1521L and 1521R, and the left and right shuttle beams 1400L supported by the left and right roller support members 1460L and 1460R. The 1400R is retracted while sliding to each other.

The minimum stroke length Lmin and the maximum stroke distance Lmax can be stopped by a limit switch (not shown) so that they can be controlled so that they do not deviate or overlap more.

Meanwhile, as the shuttle beams 1400L and 1400R approach or retreat, the distance between the left and right lifting members 1710 to 1730 is also simultaneously retracted.

Lifting member 1700 is composed of a fixed hanger member 1710, 1730 and the movable hanger member 1720.

The fixed hanger member 1710 includes a hanger 1713 fixed to a bracket 1940B fixed to both ends of the shuttle beams 1400L and 1400R, and a magnet 1711 detachably suspended from the hanger 1713. .

Similarly, the fixed hanger member 1730 is composed of a hanger (1733) is fixed to the central lower surface of the main beam (1300), and a magnet (1713) detachably suspended on the hanger (1733).

The movable hanger member 1720 is a magnet roller member 1730 that is slidable to the shuttle beams 1400L and 1400R, a hanger 1723 installed on the magnet roller member 1740, and a removable hanger 1723. It is composed of a magnet (1721) to be suspended.

As shown in FIGS. 40 and 41, the magnet roller member 1740 includes a roller 1741 and a roller 1741 supported on an upper surface of a lower surface flange of the I beams 1301 and 1302 of the main beam 1300. A shaft 1745 supporting through the bearing 1742 and a side bracket 1746 supporting the shaft 1745. The side brackets 1746 are supported by hangers 1723 and connected to each other, and the hangers 1723 are supported by the fastening elements 1748 to the side brackets 1746.

The left and right magnet roller member 1740 is a distance adjusting member 1900 that can adjust the distance (Smax) (Smin) between the magnets 1711, 1721, 1731 when approaching and retracting the shuttle beams (1400L) (1400R). ) Is required.

As shown in FIG. 44, the distance adjusting member 1900 includes an approach distance adjusting member 1900A and a retreating distance adjusting member 1900B.

The access distance adjusting member 1900A has an access pulley 1910A disposed at the center of the magnet roller member 1740, one end of which is fixed to the bracket 1930A of the main beam 1300, and the other end of the shuttle beam 1400L, 1400R. It is composed of an access wire (1920A) hooked to the access pulley (1910A) while being fixed to the bracket (1940A) of. The access pulley 1910A is supported by an access shaft 1915A rotatably fastened to the side bracket 1746.

The retraction distance adjusting member 1900B is fixed to the retraction pulley 1910B disposed at the center of the magnet roller member 1740, one end of which is fixed to the bracket 1930B of the main beam 1300, and the other end thereof is the shuttle beam 1400L (1400R). And a retracting wire 192B fastened to the retracting pulley 1910B while being fixed to the bracket 1940B. The retraction pulley 1910B is supported by the retraction shaft 1915B rotatably fastened to the side bracket 1746.

Thus, when the shuttle beams 1400L and 1400R retreat, the bracket 1940B pulls the wire 1920B toward the retracting side and, when approaching, the bracket 1940A pulls the wire 1920A toward the approaching side. .

In this way, since the wire 1920A or the wire 1920B is distributed up and down over the entire length, the approach distance adjusting member 1900A or the retreating distance adjusting member 1900B has the shuttle beams 1400L and 1400R. The distance is moved 1/2 distance with respect to the moving straight distance.

In addition, the upper retraction wire 1920B is hung on the groove 1325 formed in the wheel 1320 shown in FIG. 36D.

That is, the center of the retraction shaft 1915B is lower than the center of the wheel 1320 so that the wire 1920B passes through the top surface of the wheel 1320 to apply tension.

It is also one object to prevent the retraction wire 1920B from being loose and not transmitting the rotation force properly because it is formed longer than the other wire.

The plate lifting system according to the present invention is not limited to the above-described embodiments, and may be variously modified and implemented within the range allowed by the technical idea of the present invention.

In the present embodiment, L and R are abbreviations on the left and right sides, and when the abbreviations are not attached, the left and right sides are symmetrical even when the dimensions are slightly different, but only the meanings of the left and right sides are not given.

In addition, in the present embodiment, it will be apparent to those skilled in the art that the lifting members 700 and 1700 may be directly installed on the main beams 300 and 1300 to be locked and used in the middle beam 100.

In this embodiment, the case where the plate is transferred by one crane may be anywhere.

Claims (3)

A lifting middle beam having a sheave to which the winding wire of the crane is wound; Main beam; A lifting member disposed on the main beam; And a locking member for locking the main beam to the middle beam. The method of claim 1, And a guide member for guiding the middle beam to the locking position of the main beam. The method of claim 2, The locking member is composed of a hook that is installed on the middle beam, and the hook is installed on the main beam and caught on the hook, The locking ring is composed of a locking pin that is caught by the hook, and an arm having one end pivotably mounted to the main beam while the other end supports both ends of the locking pin. The hook is provided with a release preventing ring for preventing the release of the locking pin, The guide member includes a guide rod protruding downward from the middle beam, and a guide part installed on the main beam to guide the guide rod. The guide part includes an accommodating part accommodating the guide rod and a funnel-shaped inclined guide part installed at an upper end of the accommodating part to guide the lower end of the guide bar to the accommodating part, The main beam lifting plate is installed, characterized in that the mounting bracket for mounting the arm to maintain a predetermined slope in the state that the locking pin is released.