JPS6145972Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a mobile pot lid attachment/detachment device for attaching and detaching lids to hot metal, molten steel pots, etc., which eliminates manual slinging work, improves the working environment, and enables safe attachment/detachment of lids. , the purpose is to be able to do it quickly.

Attaching a lid to a ladle of hot metal or molten steel is considered essential to prevent heat dissipation, protect refractories, and improve the working environment. Conventionally, the attachment and detachment of the lid was done in the following way. was used.

(1) Crane (2) Dedicated hoist (3) Dedicated hoist and special hoist (4) Magnet (5) Others By the way, the requirements for actual operation of equipment that attaches and detaches the lid are: (A) Ensure that the lid is securely attached. (B) The lid can be attached and removed reliably without the need for a sling person. (C) The lid attachment/detachment part can be aligned with the pot even if the installation position of the pot changes slightly. (D) The lid can be attached quickly. (E) It is possible to finely adjust the lid attachment/detachment part using push buttons for remote automatic operation and manual operation. (F) The lid can be attached and detached even if the lid is slightly deformed. (G) The lid can be attached and detached even if it is slightly deformed. There are other requirements such as not having a negative impact on work related to pots, etc., but conventionally, all of the above items (1) to (5) satisfy all of the requirements in (A) to (G) above. The reality is that it was not possible to do so.

The present invention was devised in view of the above-mentioned circumstances, and its feature is that it is a device for attaching and detaching a lid to a ladle for hot metal, molten steel, etc., and is equipped with a rail on the lower side that allows the ladle to be positioned. , a running bogie is provided on the rail so that it can freely run, a traversing bogie is provided on the running bogie so that it can freely run in a direction perpendicular to the running direction of the running bogie, a drive device is provided to make each bogie run, and a lid attachment/removal machine is installed below the traversing bogie. , three guided shafts arranged at the vertices of a substantially equilateral triangle in plan view are erected on the outer periphery of the lid attachment/detachment machine, and a portion surrounded by the three guided shafts of the lid attachment/detachment machine. An elevating body is installed vertically on the transverse truck, and three guide tubes are vertically installed on the transverse truck, which are fitted onto each guided shaft and guide each guide shaft in a vertically movable manner. It is equipped with a drive device that raises and lowers the lid attaching/detaching machine, and a pair of spindles are rotatably installed horizontally on both sides of the lid attaching/detaching machine, and each end of each spindle has a
J-shaped lifting engagement claws are each fixed, and each support shaft is provided with an interlocking arm protruding inward, and the lid attachment/removal machine is equipped with
The present invention is equipped with a single fluid pressure cylinder that engages and disengages each engagement claw from the hanging fitting of the lid by rotating each support shaft via each interlocking arm.

An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a pair of left and right rails, which are provided on a pedestal 2. On the left side of this pedestal 2, a temporary lid storage area 3 is constructed by horizontally placing a board below the rail 1. On the right side of the lid temporary storage area 3 on the lower side of the rail 1, a plurality (three in the illustrated example) of running paths 5 each consisting of a pair of rails 4 are arranged in a direction perpendicular to the rail 1. Reference numeral 6 denotes a truck equipped with a ladle 7 for hot metal and molten steel, which travels on the running path 5. The ladle 7 on the truck 6 can be positioned below between both rails 1. 8 is a cart placed on the rail 1;
As shown in the figure, a rectangular running bogie 9 and a traversing bogie 1
Consists of 0. The traveling trolley 9 includes a pair of frames 11 located above each rail 1, and a pair of frames 11 located above each rail 1.
1, and a pair of frames 12 connecting both ends of the rail 1.
It is equipped with four wheels 13 and can run freely on the rail 1. Reference numeral 14 denotes a traveling vehicle drive device for driving the traveling vehicle 9, and is provided on the traveling vehicle 9. In the illustrated example, the device 14 includes an electric motor 15 and the power of the motor 15 to the wheels 13 side. It is composed of a transmission mechanism 16 and the like.
The portion between the rails 1 of each frame 12 of the traveling bogie 9 is a recessed portion 17 recessed downward, and four rails 18 are provided at both ends of each recessed portion 17.
It is placed in a direction perpendicular to the Traversing trolley 10
is provided on the running bogie 9, and is mainly composed of a rectangular frame 19, and four wheels 20 that roll on rails 18 are provided at the four corners. It is said that it can run freely in a direction perpendicular to the direction of travel. Reference numeral 21 denotes a traversing truck driving device for driving the traversing truck 10, and in the illustrated example, a fluid pressure cylinder 2 such as hydraulic pressure or water pressure is used.
2, and the cylinder 22 is attached to the rail 1 at the center of one side of the rail 1 of the traversing truck 10.
8, and its piston rod 23 connects to the frame 1 of the traveling truck 9 via a ball joint.
The carriage 10 is connected to a bracket 24 fixedly attached to the carriage 1, and is moved by the expansion and contraction of the cylinder 22.
A rectangular frame 25 is fixed to one side of the frame 19 of the traversing truck 10 between the rails 1.
Reference numeral 26 denotes a lid attachment/detachment machine, and as shown in FIGS. 6 to 8, it is provided on the transverse truck 10 so as to be movable up and down via three vertically installed guide members 27. These guide members 27 are arranged equidistantly in the circumferential direction in a plan view, that is, arranged at the vertices of an equilateral triangle.
9 and 25, and the guide member 27 is
It has a nested structure consisting of inner and outer cylinders 28 and 29. The outer cylindrical body 29 serving as a guide cylinder is flange-coupled to the frame 25, and the inner cylindrical body 28 serving as a guided shaft is connected to the frame 3 of the lid attachment/detachment machine 26.
It is flange-bonded to the upper frame 31 at 0. The frame 30 includes rectangular upper and lower frames 31,
32, and a connecting frame 33 that connects both frames 31 and 32. Reference numeral 34 denotes a lid attachment/detachment machine driving device for raising and lowering the lid attachment/detachment machine 26, and in the illustrated example, it includes a ball jack 35, which is a pair of vertically installed lifting bodies, and a frame 25.
An electric motor 36 provided above, and a reduction gear 3 that interlocks the motor 36 and the ball jack 35.
It is composed of a transmission mechanism 38 etc. consisting of 7 etc. The ball jack 35 includes a fixed part 39 attached to a portion of the frame 25 surrounded by the three inner cylindrical bodies 28, a movable part 40 attached to the upper frame 31 of the frame 30, and the like. frame 30
A pair of horizontally installed support shafts 41 are rotatably provided on the lower surface of each side of the rail 1 of the lower frame 32 via a pair of brackets 42.
An engaging pawl 43 for lifting the lid is fixed to the supporting portion of each bracket 42 of No. 1. There are four engaging claws 43 as described above, and as shown in FIG.
It has an inward J-shape and is removably engaged with a hanging metal fitting 45 of a lid 44 that closes the pot 7 to hold the lid 44, but the hanging metal fitting 45 has an inverted U-shape. , is fixed on the top surface of the lid 44. Reference numeral 46 denotes an engaging pawl driving device that rotates the engaging pawl 43 in and out via an interlocking mechanism 47.
8, and the cylinder 48 is connected to the frame 3.
0 from the center of the upper frame 31 to the piston rod 49
is installed as the lower side. The interlocking mechanism 47 is
It consists of a pair of interlocking arms 50 fixed to each support shaft 41 so as to project inward, and a pair of links 51.
One end of each link 51 is pivotally connected to each interlocking arm 50, and the other ends of both links 51 are pivotally connected to each other, and a piston rod 49 is connected to the pivotally connected portion.

In addition, each drive device 14, 21, 34, 46 is
Remote automatic operation is performed as described below using an automatic operation push button and a limit switch (hereinafter abbreviated as LS), which are not shown, and each drive device 14, 2
1, 34, and 46 can also be operated manually as described below using push buttons for manual operation (not shown). In the following description, it is assumed that each drive device 14, 21, 34, 46 is operated by an automatic operation push button unless otherwise specified.

According to the embodiment configured as described above, the trolley 6
When removing the lid 44 from the upper pot 7, first, the cart 6 is moved on the running path 5, and the cart 6 is positioned on the lower side between both the rails 1. In this case, trolley 8
is in a standby position above the cover plate storage area 3, as shown by the imaginary line in FIG. Further, due to the positioning of the traversing cart 10, the lid attaching/detaching device 26 is located on the side corresponding to the pot 7 on the cart 6, and the lid attaching/detaching device 26 is moved by the driving device 34 as indicated by the solid line in FIGS. 6 and 7. As shown, it is in a standby/transfer position raised to a predetermined height. Further, the engaging pawl 43 is in a standby position rotated by a predetermined angle outward from the vertical position as shown by the imaginary lines in FIGS. 7 and 9 by the drive device 46.
Therefore, from the above state, first, the traveling truck 9 is driven by the drive device 14, and the traveling truck 9 is automatically stopped by the LS above the target truck 6.
The lid attachment/detachment machine 26 and the lid 44 of the pot 7 are aligned.
Next, the lid attachment/detachment machine 26 is lowered by the drive device 34, and the LS is moved to the lid attachment/detachment position shown by the imaginary line in FIG.
Automatically stops. If the position of the pot 7 is not constant and fluctuates, move the lid attachment/detachment device 26 to the fine adjustment position shown by the imaginary line in FIG. The traveling truck 9 and the traversing truck 10 are caused to travel slightly by operating the manual operation push buttons of the respective drive devices 14 and 21.
6 and the lid 44, the lid attachment/detachment machine 2
6 is lowered and automatically stopped by LS at the lid attachment/detachment position. After the lid attachment/detachment machine 26 is set to the lid attachment/detachment position as described above, the engaging claw 43 is moved to the interlocking mechanism 47.
is rotated inward by the drive device 46 via the
As shown by solid lines in FIGS. 7 and 9, it is set in a vertical position, and the tip of the engaging claw 43 is inserted into the hanging fitting 45 of the lid 44 with a gap left in the vertical and horizontal directions. Next, lift the lid attachment/detachment machine 26 and automatically stop it at the standby/movement position using the LS, and bring the engaging claw 43 into the engaged state with the hanging fitting 45.
The lid 44 is lifted to a predetermined height via the hanging fitting 45. Then, the traveling trolley 9 is run and automatically stopped at the standby position by the LS. In this manner, the cart 8 is held at the standby position with the lid 44 held by the lid attachment/detachment machine 26 until a command to attach the lid is received, and various operations on the pot 7 are performed during this time.

In addition, when it is necessary to remove the lids 44 continuously, the removed lids 44 are lowered to the temporary lid storage area 3. In this case, the lids 44 are held by the lid attachment/detachment machine 26. After the traveling trolley 9 is automatically stopped at the standby position above the lid temporary storage area 3 by the LS,
The lid attachment/detachment machine 26 is lowered and automatically stopped by the LS at the lid attachment/detachment position with respect to the temporary lid storage area 3, and the lid 44 held by the lid attachment/detached machine 26 is loaded onto the temporary lid storage area 3. At this time, The tip of the engagement claw 43 is inserted into the hanging fitting 45 with a gap in the vertical and horizontal directions. And lid attachment/detachment machine 2
The drive device 46 is actuated by a signal from the LS that automatically stops the cover 6 at the lid attachment/detachment position.
As a result, the engaging claw 43 is rotated outward to the standby position. Then, the drive device 34 is actuated by a signal from the LS that detects the completion of the operation of the drive device 46, and as a result, the lid attachment/detachment device 26 is raised.
Automatically stops by LS at standby/movement position. Thereafter, the lid 44 is removed in the same manner as described above in response to a command to remove the lid.

Next, when attaching the lid 44 to the pot 7, while the lid 44 is held by the lid attachment/detachment machine 26, the traveling trolley 9 is run, and the L.
S. to automatically stop the lid 44 and the pot 7. Then, the lid attachment/detachment machine 26 is lowered by the drive device 34, automatically stopped at the lid attachment/detachment position by the LS, and the lid 44 is loaded onto the pot 7. 45 in the vertical and horizontal directions. In addition, if the position of the pot 7 is not constant and fluctuates, the lid attachment/detachment device 26 is automatically stopped by the LS at the fine adjustment position, and the traveling truck 9 and the traversing truck 10 are automatically stopped.
is made to move slightly by operating the manual operation push button of each drive device 14, 21, thereby aligning the lid 44 held by the lid attaching/detaching machine 26 and the pot 7, and then driving the lid attaching/detaching machine 26. It is lowered by the device 34 and automatically stopped by LS at the lid attachment/detachment position. Then, the drive device 46 is activated by the signal from LS that detects the stoppage of the operation of the drive device 34, and as a result, the engagement pawl 43 is rotated outward and placed in the standby position. , the engagement between the engagement claw 43 and the hanging fitting 45 is released. Then, the drive device 34 is actuated by a signal from the LS that detects the completion of the operation of the drive device 46. As a result, the lid attachment/detachment device 26 is raised and automatically stopped by the LS at the standby/movement position. Next, the traveling trolley 9
The robot is run and automatically stopped by the LS at the standby position, and with the engaging claw 43 at the standby position, it is kept on standby until a command to remove the lid is issued.

In addition, if it is necessary to attach the lid 44 continuously, the lid 44 on the temporary lid storage area 3 located under the standby position of the traveling trolley 9 is attached to the lid attachment/removal machine 2 in succession to the above-mentioned work.
In this case, after the traveling cart 9 is automatically stopped at the standby position by the LS, the lid attachment/detachment machine 26 is lowered, and the lid attachment/detachment machine 26 is lifted by the LS at the lid attachment/detachment position in the temporary lid storage area 3. After the automatic stop, the lid 44 is lifted up by the lid attachment/detachment machine 26, and the lid 44 is attached to the pot 7 in the same manner as described above.

As mentioned above, according to the embodiment, the lid attachment/detachment machine 26
The four engaging claws 43 can be freely engaged and detached from the hanging fitting 45 of the lid 44 by means of a drive device 46.
The lid 44 can be reliably and quickly attached to and removed from the lid attachment/detachment machine 26, and the lid 44 can be held securely by the lid attachment/detachment machine 26, and gaps are created between the engaging claw 43 and the hanging fitting 45 in the vertical and horizontal directions. Since the lid 44 is engaged and detached in a state in which the lid 44 is attached and detached, even if the lid 44 is slightly deformed, the lid 44 can be easily attached and detached from the lid attachment/detachment machine 26. Moreover, since the lid attachment/detachment device 26 is provided on the traversing cart 10 via the guide member 27 so that it can be raised and lowered freely, the lid 44
There is no risk that the lid 44 and the lid attachment/detachment machine 26 will oscillate laterally when moving up and down or moving in the horizontal direction. Furthermore, a drive device 34 for raising and lowering the lid attachment/detachment machine 26,
Ball jack 3 that moves up and down at a constant output and speed
5 etc., it is possible to reliably prevent the lid 44 from bouncing off due to repulsive force caused by changes in load due to welding or deformation of the connecting portion, etc.
And the lid attachment/detachment machine 26 can be run in a stable state. Further, remote automatic operation is possible, and even if the position of the pan 7 changes slightly, the traveling cart 9 and the traversing cart 10 can be slightly moved by pressing the manual operation push button, and the lid attaching/detaching device 26 can be easily aligned with the lid 44. can. Furthermore, since the traveling cart 9 and the traversing cart 10 can be moved together with the lid attaching/detaching machine 26 from above the pot 7, each of the above-mentioned carts 9, 10 and the lid attaching/detaching machine 2
6 will not adversely affect the work of transporting the pot 7 or other operations related to the pot 7.

As detailed above, in the present invention, the plurality of engaging claws of the lid attaching/detaching machine can be engaged and disengaged from the lid hanging fittings by means of a drive device. Even if the lid is slightly deformed, the lid can be reliably, quickly and easily attached to and removed from the lid attachment/detachment machine, and the lid can be reliably held by the lid attachment/detachment machine. In addition, a pair of support shafts are installed horizontally on both sides of the lid attachment/detachment machine so that they can rotate freely.
A J-shaped lifting claw is fixed to each end of each support shaft, and an interlocking arm is installed on each support shaft to protrude inward. Since it is equipped with a single fluid pressure cylinder that engages and disengages each engaging claw from the lid hanging fitting by rotating each support shaft through the The four engaging claws can be rotated by the drive device, and even if an accident occurs in which the fluid pressure in the fluid pressure cylinder decreases when the lid is lifted, the engaging claws will not engage. The lid will not fall off from the mating claws, making it highly safe. Furthermore, three guided shafts arranged at the vertices of a substantially equilateral triangle in plan view are installed on the outer periphery of the lid attaching/detaching machine, and each guided shaft is fitted onto the traversing trolley. Since three guide tubes are installed vertically to guide the lid so that it can be raised and lowered, there is no risk of the lid or lid attachment/detachment machine shaking laterally when the lid attachment/detachment machine lifts or lowers the lid or moves horizontally. , work can be done safely and reliably. In addition, an elevating body is erected in the area surrounded by the three guided shafts of the lid attaching/detaching machine, and the traversing cart is equipped with a drive device that raises and lowers the lid attaching/detaching machine via the lifting body. Even if the length of the cylinder is short, the possibility that the elevating body will be distorted can be reduced, and the lid attachment/detachment machine can be accurately and reliably raised and lowered. In addition, a traversing cart equipped with a lid attaching/detaching device is provided on the traveling truck so that it can freely travel in a direction perpendicular to the traveling direction of the traveling truck, and each truck is driven by a drive device, so that the lid attaching/detaching device can be easily attached to the pot. In addition to being able to move the traveling cart and the traversing cart together with the lid attachment/detachment machine from above the pot, it is possible to prevent the above-mentioned carts and lid attachment/detachment machine from adversely affecting the pot transportation work and other operations related to the pot. There's nothing to do. The present invention has the above-mentioned advantages, does not require manual slinging work, improves the working environment, and allows for easy fine-tuning through remote automatic operation and manual operation, which is of great practical benefit. be.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall front view, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the main part, Fig. 4 is a side view of the transverse truck, and Fig. 5 is 6 is a front view showing the lid attachment/detachment machine, the guide member and drive device for raising and lowering the lid, FIG. 7 is a side view, FIG. 8 is a plan view, and FIG. 9 is an engaging claw. and an enlarged front view of the hanging fitting. 1...Rail, 5...Runway, 6...Bolly, 7
... Pot, 8 ... Trolley, 9 ... Traveling trolley, 10 ...
Traversing truck, 14... Traveling truck drive device, 21...
Traversing cart drive device, 26... Lid attachment/detaching machine, 27...
Guide member, 34... Lid attachment/detachment machine drive device, 43...
...Engagement claw, 44...Lid, 45...Hanging fitting, 46...
...Engagement pawl drive device.

Claims (1)

[Scope of utility model registration request] A device for attaching and detaching a lid to a ladle such as a ladle for hot metal or molten steel, which is equipped with a rail on the lower side on which the ladle can be positioned, a running bogie that is movable on the rail, and a transverse bogie on the running bogie in the running direction of the bogie. It is equipped with a drive device that allows each truck to run in a direction perpendicular to the traversing truck, and is equipped with a lid attaching/detaching machine below the traversing truck. At the same time, three guided shafts were installed upright, and an elevating body was installed upright in the area surrounded by the three guided shafts of the lid attaching/detaching machine, and each of the three guided shafts was fitted onto the traversing trolley. Guide the guided shaft freely up and down 3
A guide tube for books is installed vertically, and the traversing cart is equipped with a drive device for raising and lowering the lid attachment/detachment machine via an elevating body, and a pair of support shafts are rotatably installed horizontally on both sides of the lid attachment/detachment machine. A J-shaped lifting claw is fixed to each end of each support shaft, and an interlocking arm is provided on each support shaft to protrude inward. A movable pot lid attaching/detaching device characterized by comprising a single fluid pressure cylinder that engages and disengages each engaging pawl from a hanging fitting of a lid by rotating each support shaft.