JPH043796A - Hoisting accessory with removing device - Google Patents

Abstract

PURPOSE:To dispense with the human intervention in fitting or removing a hoisting accessory for conveying an article and a hoisting member on the article side by connecting a connecting bar connected to the back of a hook via a pin to a pinion via a lever link mechanism. CONSTITUTION:When a lift shaft 36 is once lowered to the lowest limit, a hook 54 is opened. The rotary hook 54 is rotated by 90 deg., the other side face of a horizontal projection 38 is brought into contact with a long stopper 70a and lifted, when it is confirmed that the 'hook closed' mark of a frame 34 and the 'hook closed' mark of a lift frame 44 coincide, the rotary hook 54 is hoisted, the shaft 36 is lifted together with the frame 44, the horizontal projec tion 38 provided at the lower end section of the shaft 36 is hooked on the high seat face 40a of a receiving seat 40, and a pinion 48 is rotated by the lift of a rack 46. When the pinion 48 is rotated, the hook 54 is rotated in the closing direction via a lever link mechanism constituted of levers 60a, 60b, 60c and connecting levers 58a, 58b, and it is hooked on the pin of a hoisting metal 78 provided on a rolling machine stand 74.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention allows a hanging device used for transporting articles with a crane or the like to be attached to and detached from a hanger on the article side without requiring human intervention. This invention relates to a hanging tool equipped with an attachment/detachment device.

<Prior Art> Conventionally, as shown in FIG. 8 to FIG.
A hanger for transporting articles is known in which four hanging members 2 are provided, two of which are opposed to each other and are swingable by means of pins 4. A hanging ring 5 is attached to the central part of the hanging tool body 1 via a pin 6, and a crane hook 7 is hung on the hanging ring 5 so that the hanging tool main body 1 can be raised and lowered.

By the way, a U-shaped metal fitting 20 is attached to the opposite side of the lower end hook 3 of each hanging member 2 by welding, and a hanging member 17 for hook hooking is attached to a conveyed article, in this case, a rolling roll stand 15. When hooking or removing the hook 3, the worker hooks the hand hook onto the metal fitting 20 and opens the hanging member 2, that is, the hook 3, on both sides to align the hook 3 with the hanging member 17 or remove it. Was.

Since the work of opening the hanging member 2 using the hand hook is performed by a worker, when the article to be lifted is large like the rolling mill roll stand 15, the lifting hand member 17 is located at a high position, so that the lifting member 2 is opened above the rolling mill roll stand 15. It was necessary to climb up to hang and unhook the hook 3 of the hanging device, which posed a safety problem. In addition, two workers were required to open the hook 3 to the left and right, and a total of three workers were required, including one person operating the crane.

In order to solve the above-mentioned problems, Japanese Utility Model Publication No. 56-140580 proposes a hanging device that does not require human intervention to attach and detach the hanging device and the hanging hand. Although the prior art proposed in the above-mentioned publication does have the advantage of not requiring any manual labor, it descends along the inclined guide member with the hooks of each hanging member attached to the hanging tool body being expanded. Therefore, when the hook is attached or detached, not only does the main body of the hoist swing laterally, but the work is unstable because the hook is operated only by the balance of the center of gravity of the hook, resulting in a safety issue.

<Problem to be solved by the invention> The present invention has been made in view of the above circumstances,
The purpose is to provide a hanging device that eliminates the need for human intervention in attaching and detaching a hanging device for transporting articles and a hanging member on the article side, and is equipped with an attaching and detaching device that allows safe and secure attachment and detachment. There is a particular thing.

<! I! Means for Solving the Problem> A hanging device equipped with an attachment/detachment device of the present invention that achieves the above object is located at the center of the pedestal frame, has a through hole in the vertical direction, and has a through hole in a symmetrical part of the outer wall. Each has a sleeve-shaped shaft receiver with a vertical guide groove,
An elevating shaft, which is suspended downward and has an inverted T-shaped horizontal protrusion at its lower end, is pushed through the through hole of the sleeve-shaped shaft holder so as to be able to move vertically and rotate from a hanging frame that can be rotated horizontally by 90 degrees. , a receiving seat having two seating surfaces with different heights, with which an inverted T-shaped horizontal protrusion at the lower end of the lifting shaft engages under the gantry frame directly below the sleeve shaft holder to adjust the lifting and lowering position of the shaft; Further, a pair of elevating frames are attached to the upper part of the elevating shaft, which are rotatable with respect to the elevating shaft and can be raised and lowered integrally with the elevating shaft, and which are guided by guide grooves formed on the outer wall of the sleeve-shaped shaft holder and raised and lowered. , and a rack is provided on the outer surface of each of the elevating frames, a pair of pinions that mesh with the racks provided on each of the pair of elevating frames are supported by bearings disposed on the pedestal frame; Support members are provided downward from each of the four corners of the frame, and two hooks are provided at the lower end of each of the support members to face each other and are rotatable, and are connected to the backs of the hooks via pins. The invention is characterized in that a connecting bar is connected to the pinion via a lever link mechanism.

<Example> Hereinafter, the structure and operation of the present invention will be explained in detail based on an example shown in FIGS. 1 to 7.

In FIGS. 1 to 3, reference numeral 30 denotes a stand frame of the hanging tool 80. A sleeve-shaped shaft receiver 32 is fixedly provided in the center of the stand frame, and the outer wall of this sleeve-shaped shaft receiver 32 is A vertical guide groove 42 is formed in the symmetrical portion.

On the other hand, an elevating shaft 36 is integrally fastened with bolts and hangs downward from the hanging frame 34, which has a structure in which the rotation angle is regulated to 90 degrees, and is lifted and lowered in synchronization with the hanging frame 34 by the rotational force of the rotary hook 76. shaft 36
is pushed through the sleeve-shaped shaft receiver 32 so that it can move up and down and rotate. The horizontal protrusion 3 provided at the lower end of the elevating shaft 36 is adapted to engage with a seat 40 provided under the pedestal frame 30 corresponding to the sleeve-shaped shaft receiver 32 .

Furthermore, a pair of elevating frames 44 are attached to the upper part of the elevating shaft 36 to allow rotation of the elevating shaft 36 and to move up and down integrally, and a rack 46 is provided on the outer surface of the sliding portion 44a of each elevating frame 44. It is. On the other hand, a pinion 48 is attached to a bearing 50a disposed on the gantry frame 30, and this pinion 48 meshes with a rack 46 provided on the outer surface of the sliding portion 44a of the elevating frame 44.

Hanging legs 52 are provided downward from each of the four corners of the pedestal frame 30, and two pivotable hooks 54 are attached to the lower end of each of the four wooden hanging legs 52. It is attached via 56. One end of a connecting bar 58a is connected to the back of the hook 54 via a pin, and the other end of the connecting bar 58a is connected via a pin to a shaft supported by a bearing 50b arranged on the stand frame 30. 6
2 to levers 60a and 60b, and lever 60b is further connected to lever 60c via a connecting bar 58b, thus being connected to a pinion 4 supported by bearing 50a. Note that 64 is the connecting bar 5
This is a tongue buckle that adjusts the length of 8a.

4 (the right half and left half in FIG. 4 correspond to the right half and left half of FIG. 1, respectively) and FIG. Through hole 32a of sleeve-shaped shaft receiver 32
The W and I shafts 36 are pushed through so that they can move up and down and rotate within upper and lower bearings 66a that are installed in the through holes 32a of the sleeve-shaped shaft receiver 32.

A lifting frame 44 is attached to the upper part of the lifting shaft 36 via a bearing 66b, and the lifting shaft 36 is rotatable with respect to the lifting frame 44 and moves up and down integrally with the lifting frame 44. . A rack 46 provided on the outer surface of the sliding portion 44a of the lifting frame 44 is engaged with a pinion 48, and the sliding portion 44a of the lifting frame 44 is guided by a guide groove 42 formed on the outer wall of the sleeve-shaped shaft receiver 32 to move up and down. As the elevating frame 44 moves up and down, the pinion 48 is rotated via a rack 46 provided on its outer surface.

When the elevating frame 44 is lowered to its lower limit, the elevating frame 44 is supported by a stopper 68 provided at the upper end of the sleeve-shaped shaft receiver 32.

The third horizontal protrusion provided at the lower end of the lifting shaft 36 has an inverted T-shape as shown in FIG. As shown in the figure, a high seating surface 40a and a low seating surface 40b are formed by intersecting grooves of different levels in the height direction at right angles, and a long stopper 70a and a short stopper 44b are provided diagonally at each corner. A circular lower part 2 through which an elevating shaft 36 is pushed is provided in the center.

Next, to explain the effect of the present invention, the hanging tool 8 of the present invention
0 is placed on a dedicated pedestal (not shown) or the rolling mill stand 74 that is the object to be transported, the elevating frame 44 descends and touches the stopper 68 provided at the upper end of the sleeve-shaped shaft receiver 32. I'm being kicked. Therefore, at this time, as shown by the two-dot chain line in the right half of FIG. The hook 54 is in an open state via a lever link mechanism consisting of levers 60a, 60b, etc.

When the hanging device 80 is used for one time, first, a crane with a rotary hook (not shown) is operated, and the rotary hook 76 is inserted into the pin 34a of the hanging frame 34, for example, by radio communication from the aircraft or the ground. Next, set the lower hook 76 so that the hook open mark provided in advance on the hanging frame 34 and the hook open mark provided on the elevating frame 44 match.
When rotated to follow the hanging frame 34, the side surface of the horizontal protrusion 38 provided at the lower end of the lifting shaft 36 becomes a long stopper 70 as shown by the two-dot chain line in FIG.
It comes into contact with a and is stopped.

After confirming that both hook opening indicators match, the rotary hook 76 is slightly hoisted up via the wire hanging from the crane, and the elevating frame 44 is slightly raised together with the elevating shaft 36, as shown by the solid line in the right half of FIG. In this manner, the horizontal protrusion 38 provided at the lower end of the elevating shaft 36 is engaged with the lower seating surface 40b of the catch seat 40 provided below the gantry frame 30. As the elevating frame 44 rises slightly, the rack 46 also rises, and the clockwise rotation of the pinion 48 causes the hooks 54 to move levers 60a, 60b, 60c, connecting levers 58a, 58b, etc., as shown by solid lines in the right half of FIG. The open state, in which the eyes are slightly rotated from the open state, is maintained through the lever link mechanism.

Subsequently, the hanging fixture 80 is lifted from a special mount (not shown) using a roll hook 76 and moved to the position of the online rolling mill stand 74 using a crane. 52, lower the crane further from this position, and lift the lifting shaft 3.
Once the hook 6 is lowered to the lowest limit, the hook 54 becomes open again. At this stage, when the row hook 76 is rotated 90 degrees in the opposite direction to the previous one, the other side of the horizontal protrusion 38 provided at the lower end of the lifting shaft 36 is longer than the stone puff 0a.
The hook-closed indicator on the shoulder frame 34 and the hook-closed indicator on the elevating frame 44 match.

After confirming that the hook closing indicators on both sides match, when the lower hook 76 is hoisted up, the elevating shaft 36 rises together with the elevating frame 44 as shown in the left half of FIG. 3rd is Ukeza 4
The pinion 48 is stopped by the high seat surface 40a of the rack 46 and rotates as the rack 46 rises.

When the pinion 48 rotates, the levers 60a, 60b, 60c and the connecting lever 58a15
The hook 54 rotates in the closing direction via a lever link mechanism such as 8b, and is hooked onto a pin of a hanging fitting 78 provided on the rolling mill stand 74.

After the operation of hooking the hook 54 is completed in this way,
Further, when the roll hook 76 is hoisted up, the rolling mill stand 7
4 will be lifted together with the lifting equipment, so operate the crane and move the rolling mill stand 74 to a predetermined offline position.
If the roll is lowered as it is, the rolling mill stand 74 will land together with the hanging tool.

In this state, when the lower hatch 76 is lowered further, the lifting shaft 36 is lowered to the lowest limit, and the lowering frame 34 is lowered, and the hook 54 is rotated via the rack 46, pinion 4B, and lever link a structure, and the eye is returned to the open state. . At the same time, the rotary hook 76 is in a state with a clearance from the pin 34a of the hanging frame 34. After that, the hanging frame 34 is rotated 90'' together with the lifting shaft 36 using the rotary hook 76, and then the hanging frame 34 is
4 and the lift frame 44 again, and the hook 54 is maintained in the open state to lift the hanging tool 80, only the hanging tool 80 is lifted, leaving the rolling mill stand 74.

Subsequently, to bring a new rolling mill stand from offline to online, repeat the same procedure to ensure that all cranes are able to move the stand from offline to online. Transport work can now be accomplished by one operator.

Note that the short stopper 70b of the catch seat 40, which is not shown in FIGS. 4 and 7, is used when the hook 54 is opened and the overall direction of the hanging tool 80 is changed by rotating the lower hook 76 while only the hanging tool 80 is being transported. The catch seat 4 due to the inertia of the hanging tool 80, etc.
Since there is a possibility that slippage may occur on the contact surface between the horizontal protrusion 38 of the lifting shaft 36 and the horizontal protrusion 38 of the lifting shaft 36, this function has the role of preventing this. For this reason, the lower end of the short stopper 70b is at a height position where the elevating shaft 36 is automatically at the lowest position and the horizontal protrusion 38 does not interfere when the rotary hook 76 applies rotational force.

<Effects of the Invention> As explained above, by using the hanging device equipped with the attachment/detachment device of the present invention, the hook provided at the bottom of the hanging device can be used as the hanging device for the transported object, and human intervention on the ground is not required. It can be attached and detached by the crane operator without any need for one-man operation, which saves labor and improves work efficiency, and eliminates the conventional difficult and dangerous work performed by one person on the ground.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a side view taken along the line A-A in FIG. 1, and FIG. 3 is a plan view taken along line A-A in FIG. FIG. 4 is a sectional view taken along line B-B in FIG. 2, FIG. 5 is a sectional view taken along line AA in FIG. 4, and FIG. 6 is a portion showing the lower end of the lifting shaft according to the present invention. FIG. 7 is a perspective view showing a catch according to the present invention, FIGS. 8 to 10 show a conventional example, FIG. 8 is a front view, FIG. 9 is a side view, and FIG. 1O is a plan view. It is. 76... Rokuri hook, 80... Hanging tool. 78... Hanging fixture, 30... Frame, 32... Sleeve shaft receiver, 34... Hanging frame, 36... Elevating shaft, 38... Horizontal protrusion, 40... Receiver, 42...Guide full, 44...Elevating frame J1.46...Rack, 48...Pinion, 50
...Bearing, 52...Hanging leg, 54...
・Hook, 56...Pin, 5B...Ream 71 Bar 60...Lever 62...l
ll1.64... Tanpankuru, 66... Bearing, 68... Stopper (for lifting frame), 70... Stopper (for catch seat),

Claims (1)

[Claims] A sleeve-shaped shaft holder is provided at the center of the mount frame and has a vertical through hole, and vertical guide grooves are formed in symmetrical parts of the outer wall. A vertically movable and rotatably vertically movable elevating shaft, which is vertically suspended from the hanging frame and has an inverted T-shaped horizontal protrusion at the lower end, is inserted into the suspension frame, which is structured to restrict the angle of the shaft to 90 degrees, and corresponds to the position directly below the sleeve shaft holder. A receiving seat having two seating surfaces of different heights is provided under the gantry frame to which the inverted T-shaped horizontal protrusion at the lower end of the lifting shaft engages to adjust the lifting and lowering position of the shaft; A pair of elevating frames are installed that allow rotation of the elevating shaft and move up and down integrally and are guided by guide grooves formed on the outer wall of the sleeve-shaped shaft holder, and a rack is provided on the outer surface of each of the elevating frames. , a pair of pinions that mesh with racks respectively provided on the pair of elevating frames are supported by bearings disposed on the pedestal frame;
Furthermore, support members are provided downward from each of the four corners of the gantry frame, and two hooks are provided at the lower end of each of the support members to face each other and are rotatable, and a pin is attached to the back of the hook. A hanging tool equipped with an attachment/detachment device, characterized in that a connecting bar connected to the pinion is connected to the pinion via a lever link mechanism.