JPH0627856U - Hook attachment device - Google Patents

Abstract

(57) [Summary] [Structure] A vertically movable table 6 provided at a hook attachment / detachment position, horizontally movable on the table 6 toward the hook attachment / detachment position, and horizontally movable for positioning. A hook guide 9 on which the hook 5 is placed,
It was attached to the hook guide 9 so as to project horizontally.
A sensor 14 for detecting the position of the hanging metal fitting 3 to which the hook 5 is to be attached and detached, and a detector 15 provided inside the hook guide 9 for detecting the presence or absence of a hook on the hook guide 9. Hook attachment / detachment device. [Effect] When the pan is tilted to scrape out the molten slag floating on the surface of the molten metal in the pan, sample the molten metal, and put in a heat insulating material, attach and detach hooks to the hanging metal fittings of the pan. The work can be performed safely, reliably and efficiently without requiring manpower.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In this invention, in order to tilt the hot metal ladle or ladle by an overhead crane or an electric winch, the hanging fittings provided on the hot metal ladle or ladle are automatically engaged with the hooks from the overhead crane or the electric winch. The present invention relates to a hook attaching / detaching device that can be fitted or removed.

[0002]

[Prior art]

 For example, when scraping molten slag floating on the surface of the molten metal in the hot metal ladle, sampling the molten metal, and adding a heat insulating material, it is necessary to tilt the hot metal ladle. Conventionally, such tilting of the hot metal ladle is performed by moving the hot metal ladle 1 by means of a carriage 2 to a hook attaching / detaching position where the hot metal ladle should be tilted, as shown in FIG. Is engaged with the hook 5 attached to the tip of the wire 4 from the overhead crane or the electric winch with the hanging metal fitting 3 provided on the lower part of the side wall of the hot metal ladle 1, and as shown in FIG. Alternatively, the electric winch is driven to pull up the wire 4.

[0003]

[Problems to be solved by the device]

 The above-mentioned work of attaching and detaching the hook 5 to and from the hanging fitting 3 of the hot metal ladle 1 by the worker has the following problems. The work of attaching and detaching the hooks 5 to and from the hanging fittings 3 of the hot metal ladle 1 is inefficient because the worker must keep in touch with the operator of the ceiling crane or the electric winch, and it is inefficient. The work environment is poor and dangerous because it is a high-heat work that is performed close to the hot metal ladle.

Since the hook 5 has a weight of 500 to 800 kg and is heavy, an operator manually pushes or pulls the hook 5 having such a heavy weight to engage with the hanging fitting 3 or remove it from the hanging fitting 3. The attachment / detachment work is a heavy labor and the worker is apt to have a backache.

When attaching or detaching the hook 5, the trolley 2 on which the hot metal ladle 1 is mounted must be moved to a predetermined hook attaching / detaching position and positioned appropriately at that position. However, since the hook attachment / detachment position changes about 30 to 50 mm vertically and horizontally for each dolly, the dolly must be aligned each time, which makes the work complicated and inefficient.

Therefore, the object of the present invention is to solve the above-mentioned problems, to scrape out the molten slag floating on the surface of the molten metal in the pan, to sample the molten metal, to add a heat insulating material, etc. An object of the present invention is to provide a device capable of safely and reliably and efficiently attaching / detaching hooks to / from a hanging metal of a hot metal ladle or a ladle when tilting the ladle or ladle.

[0007]

[Means for Solving the Problems]

 The device of the present invention comprises a table which can be moved up and down, which is provided at a hook attachment / detachment position, a first cylinder for moving the table up and down, and a bottom wall of which is fitted in a groove of a predetermined width provided in the table. Then, a hook guide having a U-shaped cross section, which is provided on the table so as to be horizontally movable along the groove toward the hook attachment / detachment position, and the hook guide toward the hook attachment / detachment position, the groove A second cylinder horizontally provided at one end of the table for moving horizontally along the hook and the hook guide for moving the hook guide in the left-right direction within the width of the groove. Fixed to the bottom surface of the bottom wall of the table, and the tips of the left and right rods are fixed to the bottom surfaces of the widthwise ends of the table. , A sensor for detecting the position of the hanging metal fitting, which is attached to the hook guide so as to project in the horizontal direction, and a presence of a hook on the hook guide, which is provided inside the hook guide. It is characterized by being composed of a detector for

[0008]

[Action]

 According to the device of the present invention, a hook guide, on which a hook is placed, is provided on a table that can be moved up and down so that the hook can be moved horizontally and horizontally toward the hanging metal fitting of the pot to which the hook is to be attached and detached. ing. The sensor attached to the hook guide detects the position of the hanging metal fitting to which the hook is to be attached / detached, and the detector provided in the hook guide detects the presence / absence of the hook on the hook guide. Therefore, when the detector detects that the hook is placed on the hook guide, the hook guide moves in the left-right direction, and the sensor positions the hook with the hanging metal fitting to be attached / detached. As the table rises together with the hook guide and the hook guide advances on the table, the hook placed on the hook guide can be automatically engaged with the hanging metal fitting.

[0009]

【Example】

 Next, the device of the present invention will be described by way of examples with reference to the drawings. FIG. 1 is a front view showing one embodiment of the device of the present invention, and FIG. 2 is a side view thereof. As shown in FIGS. 1 and 2, a table 6 on which a hook 5 from an unillustrated overhead crane or electric winch is placed is attached to a base 17 via a hook guide 9 at a hook attaching / detaching position. It is provided so as to be supported by a plurality of guide columns 8. Reference numeral 7 denotes a first cylinder vertically provided on a base 17 for raising and lowering the table 6, and the tip of a rod 7a thereof is fixed to the lower surface of the table 6. Therefore, by the operation of the first cylinder 7, the table 6 moves up and down with the guide pillar 8 as a guide.

A groove 6a having a predetermined width is formed in the center of the table 6 so as to face the hanging metal fitting 3 of the hot metal ladle to which the hook 5 is to be attached. A hook guide 9 having a U-shaped cross section, which is composed of a bottom wall 9a and side walls 9b and 9b, is provided so that the bottom wall 9a is fitted into the groove 6a of the table 6 and can move horizontally on the table 6. A second cylinder 10 for horizontally moving the hook guide 9 is horizontally provided at one end of the table 6, and the tip of the rod is fixed to the hook guide 9. Therefore, by the operation of the second cylinder 10, the hook guide 9 horizontally moves along the groove 6a of the table 6 toward the hanging fitting 3 of the hot metal ladle.

A third cylinder 11 is provided horizontally on the lower surface of the bottom wall 9a of the hook guide 9 having a U-shaped cross section, through the groove 6a of the table 6, and the left and right rods 11a of the third cylinder 11, Each tip of 11 b is fixed to the lower surface of both ends of the table 6 in the width direction by a metal member 12. Therefore, by the operation of the third cylinder 11, the hook guide 9 horizontally moves in the left-right direction within the width of the groove 6a provided in the table 6.

At both ends of the hook guide 9, two detectors 15 such as an optical fiber type photoelectric switch for detecting the presence or absence of the hook 5 placed thereon are arranged at predetermined intervals. The presence of the hook 5 is detected by the two detectors 15 provided separately.

A sensor 14 is fixed to the hook guide 9 via a metal 18 so as to project in the horizontal direction toward the hanging metal fitting 3 of the hot metal ladle (not shown). The sensor 14 has a spring shape. When the sensor 14 comes into contact with the hanging metal fitting 3, the position of the hanging metal fitting 3 is detected and the hook guide 9 is positioned. 13 is a hydraulic unit.

FIG. 4 is a general view of a hot metal ladle tilting mechanism in which the hook attaching / detaching device of the present invention described above is installed. The hot metal ladle 1 is attached to a hanging fitting of the wire 4 from the electric winch B. The hook attaching / detaching device A of the present invention is installed at a position where the hook 5 is to be attached / detached. Reference numeral 16 denotes a monitoring device including an industrial television and a monitor for the hook attaching / detaching device A. The monitoring device 16 remotely monitors the attachment / detachment state of the hook 5 to / from the hanging fitting of the hot metal ladle 1 by the hook attaching / detaching device A. It

Next, the operation of the device of the present invention will be described. Engagement of the hook 5 from an overhead crane (not shown) or an electric winch with the hanging metal fitting 3 provided on the hot metal ladle is performed as follows. First, the trolley moves the hot metal ladle to the hook attachment / detachment position where the hot metal ladle should be tilted. Next, the hook 5 attached to the tip of the wire is lowered by a crane or winch, and the hook 5 is placed on the hook guide 9 as shown in FIG. Thus, the fact that the hook 5 is placed on the hook guide 9 is detected by a detector 15 such as two photoelectric switches provided on the hook guide 9.

The second cylinder 10 operates based on the detection signal of the hook 5 on the hook guide 9 from the detector 15 described above, and the hook guide 9 retracts together with the hook 5 to a predetermined position. Then, the first cylinder 7 is operated, and the table 6 is lowered to a predetermined position together with the hook guide 9 and the hook 5, as shown in FIG. The stroke amounts of the first cylinder 7 and the second cylinder 10 described above can be arbitrarily adjusted.

Next, the third cylinder 11 is activated, and the hook guide 9 moves laterally along with the hook 5 by ± 100 mm, for example. When the sensor 14 attached to the hook guide 9 comes into contact with the hanging metal fitting 3 provided on the hot metal ladle by such movement of the hook guide 9, the above-mentioned movement of the hook guide 9 is stopped. The hook guide 9 is positioned by such contact of the sensor 14 with the hanging metal fitting 3.

Next, the first cylinder 7 operates, the table 6 moves up together with the hook guide 9 and the hook 5, and the second cylinder 10 operates so that the hook guide 9 suspends together with the hook 5. Move forward toward the metal fitting 3. Thus, the hook 5 is engaged with the hanging fitting 3. When the hook 5 is engaged with the hanging metal fitting 3, the wire attached to the hook 5 is wound up by the crane or winch, and the hot metal ladle is tilted. With the hot metal ladle tilted at a predetermined angle in this way, work such as scraping out the molten slag floating on the surface of the molten metal in the pan, sampling the molten metal, and introducing a heat insulating material is performed.

When the hook 5 disengages from the hook guide 9 and moves upward due to the winding of the wire as described above, the disengagement of the hook 5 from the hook guide 9 is detected by the detector 15, and the first cylinder 7 and the second cylinder 10 is operated, and the table 6 and the hook guide 9 are returned to their original positions.

By tilting the hot metal ladle, after the work such as scraping out the molten slag floating on the surface of the molten metal in the pot, sampling the molten metal, and adding the heat insulating material, The hook 5 is detached as follows. To return the tilted hot metal ladle to the vertical position, a crane or winch lowers the hook 5 attached to the tip of the wire. By such descending, the hook 5 is disengaged from the hanging metal fitting 3 of the hot metal ladle 1 and placed on the hook guide 9.

As described above, the fact that the hook 5 is placed on the hook guide 9 is detected by the detector 15 provided on the hook guide 9, and the detection signal causes the second cylinder 10 to operate, The hook guide 9 is retracted to a predetermined position, and the third cylinder 11 operates to return the hook guide 9 to the neutral position.

When the hook 5 is lifted by a crane or winch and disengaged from the hook guide 9, the detector 15 detects this and the first cylinder 7 is actuated to lift the table 6 and the hook guide 9 to a predetermined position. Then, the second cylinder 10 is activated to move the hook guide 9 forward to a predetermined position. Thus, a series of hook-and-hook removal work is completed. The above-described operation is remotely monitored by the monitoring device 16 including an industrial television and a monitor.

[0023]

[Effect of device]

 As described above, according to the present invention, the hot metal ladle and the ladle are tilted to scrape out the molten slag floating on the surface of the molten metal in the pot, sample the molten metal, and put the heat insulating material. At this time, the hook can be attached and detached to and from the hanging metal fittings of the hot metal ladle and the ladle without any manpower, and the industrially useful effect is exhibited.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the device of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view showing the table descending state of the device of the present invention.

FIG. 4 is an overall view of a hot metal ladle tilting mechanism in which the hook attaching / detaching device of the present invention is installed.

FIG. 5 is a schematic front view showing a conventional hot metal ladle tilting mechanism.

FIG. 6 is a schematic front view showing a tilted state of a hot metal ladle according to a conventional method.

[Explanation of symbols]

 1 hot metal ladle, 2 trolleys, 3 hanging metal fittings, 4 wires, 5 hooks, 6 table, 6a groove, 7 first cylinder, 7a rod, 8 guide pillar, 9 hook guide, 9a bottom wall, 9b side wall, 10 second cylinder , 11 3rd cylinder, 11a rod, 11b rod, 12 hardware, 13 hydraulic unit, 14 sensor, 15 detector, 16 monitoring device, 17 base, 18 hardware.

Claims (1)

[Scope of utility model registration request] 1. A vertically movable table provided at a hook attachment / detachment position, a first cylinder for vertically moving the table, and a bottom wall of the first cylinder fitted into a groove of a predetermined width provided on the table, The table is provided so as to be horizontally movable along the groove toward the hook attachment / detachment position,
A hook guide having a U-shaped cross section; a second cylinder horizontally provided at one end of the table for horizontally moving the hook guide along the groove toward the hook attaching / detaching position; The hook guide is fixed to the lower surface of the bottom wall of the hook guide for moving the hook guide in the left-right direction within the width of the groove, and the ends of the left and right rods are located at both ends in the width direction of the table. A third cylinder fixed to the lower surface, and a sensor for detecting the position of the hanging metal fitting, which is attached to the hook metal fitting of the pot to which the hook is to be attached / detached so as to project horizontally in the hook guide, A hook attaching / detaching device, comprising a detector provided inside the hook guide for detecting the presence or absence of a hook on the hook guide.