JPH0787107B2 - Power supply automatic connection device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic power supply connection device, and in particular, to clogging of a nozzle hole caused by cooling by outside air when hot water is continuously discharged from a nozzle using a tundish in a steel mill or the like. It is a device connected to a heating heater power supply for preventing the above and a plasma torch or an induction heating power supply used for heating the molten steel in the tundish.

2. Description of the Related Art In the case of large-capacity power supply such as a power supply device for a heater to prevent the sprue from becoming cold as described above, conventionally, since a thick and hard object such as a bus bar or a water cooling cable is used, the coupler has no flexibility or flexibility. It was impossible to connect with a connector or the like, and it was tightened with bolts.

Problems to be Solved by the Invention However, in recent years in the industrial world, regardless of whether the power source is for electric power or control,
Many people want to be able to easily connect and disconnect connectors or couplers manually or automatically.

Means for Solving the Problems In consideration of such a point, the present inventor tried various prototypes and experiments, and as a result, it was possible to easily and automatically connect or disconnect both couplers by a remote operation. It is a device.

That is, the present invention comprises a tundish coupler A and a tundish car coupler B.
It has a pair of electric contacts 5 and its mounting frame 2 is supported by a plurality of self-centering devices 6a to 6f so as to be freely decentered from four circumferences, and the body 1 is rotatable using a ball joint 4. While this is attached to the sliding device 3, the coupler B is provided with a main body 11 which moves forward and backward by a cylinder 12, and the main body 11 is brought into pressure contact or separation with a pair of the electric contacts 5 and has a surface at the time of pressure contact. A pair of contacts 13 with springs 23 to balance pressure
By providing a pair of electrode rods 16 each having a pair of movable connectors 14 at their tips,
Balance the surface pressure when connecting 13 and connect both couplers.
Even if the contact portions of A and B are inclined at an angle, the ball joint 4 automatically maintains the parallelism, and the self-aligning device.
The feature is that the restoration is automatically performed by 6a to 6f.

Thus, the device of the present invention is used in the power supply circuit for the electric heating of the tundish nozzle of continuous casting equipment.
The type coupler has a structure in which the coupler main body is mounted on the automatic centering device (oscillating device) 6a-6f. The coupler main body on the tundish car B side is moved forward and backward by the hydraulic cylinder 12, and after connection, it is locked by the lock metal fittings. It is a structure that holds the combined state. When the coupler B moves forward, the push rod 20 pushes against the gold receiving member 9 of the coupler A and the push rod 8 of the coupler A pushes against the gold receiving member 21 of the coupler B, respectively, and the ball joint 4 provided on the A side coupler acts. Moves so that it is parallel to the side of the side coupler, and further coupler B
When is moved forward and the contactors 5 and 13 are pressed against each other, the reaction force brings them closer to the parallel state and the connection is surely performed. When the coupler B begins to retract and the contacts 5 and 13 start to separate from each other, the self-centering devices 6a to 6f provided on the mounting frame 2 act smoothly and the coupler A returns to the state before the connection (swing). can do.

Example Next, an example apparatus of the present invention will be described. FIG. 1 is a tundish coupler A, FIG. 1A is a plan sectional view without the cover 7, FIG. 2B is a front view thereof, FIG. 3C is a side view including the cover 7, and FIG. It is a side view.

In the figure, reference numeral 1 denotes a body, which is provided with a pair of electric contacts 5 and is supported between the mounting frame 2 and a plurality of, six in the figure, centering devices 6a to 6f so as to be able to perform centering. 3 is a sliding device, which is a sliding plate joint,
It consists of a sliding plate receiver and a ball receiving plate, and the sliding joint is structured to move inside the sliding plate receiver. The body 1 is rotatably connected to the sliding device 3 with a ball joint 4 interposed therebetween. The other 7 is a cover for covering the electrode portion at the tip of the body 1, that is, the pair of electric contacts 5 when it is separated from the mating coupler B. When the mating coupler B approaches to a certain extent, the push rod 8 moves to the mating cover B. A roller provided on the cover 7 is pressed against the receiver 21 (Fig. 2B) and the details thereof are well known, and the support shaft 7a (Fig. 1C) is used as a rotation shaft to cover the cover 7.
Open. The reference numeral 7b serves as a return spring of the cover 7, and the receiving member 9 is for opening the cover 22 of the coupler B when the push rod 20 of the counterpart coupler B hits. Next, FIG. 2 shows a coupler B for a tundish car, FIG. 2A is a plan sectional view without the cover 22, FIG. 2B is a front view thereof, FIG. 3C is a side sectional view without the cover 22, and FIG. 19 is a partial view of 19 and a cover 22. FIG. In the figure, reference numeral 11 denotes a body of a coupler B, which is moved forward and backward by a cylinder 12 to connect or disconnect with the body 1 of the counterpart coupler A. The body 11 has a pair of contacts 13 at its tip and a pair of movable connectors 14 at a part thereof, and a pair of electrode rods 16 that move integrally with the body 11 are attached to the body 11. Contact 13
Are in pressure contact with or separated from the respective electric contacts 5 of the coupler A, and the respective movable connectors 14 are in sliding contact with the fixed connectors 15 of the respective connector pedestals 17. By the connection, a pair of contacts 13 and a pair of electric contacts 5 and a fixed contact 15 and a movable connector 14 can be simultaneously contacted to form a power supply circuit to supply power to the heater. It is possible to balance the connection by attaching the spring 23 to the contact 13 at the time of contact connection. When the body 11 of the coupler B is brought closer to the body 1 of the coupler A, the push rod 20 abuts on the money receiver 9 (a, b in FIG. 1) of the coupler A. The roller 22 is pushed to open the cover 22 with the support shaft 22a as the rotation shaft. Further, in the coupler B, an air cylinder 18 that moves forward and backward is provided, and the lock fitting 19 connected to this is operated to clamp (forward) to complete the connecting operation, and the air cylinder 18 is unlocked (backward). The tip hook portion 19a of the lock fitting 19 is disengaged from the lock pin 1a of the counterpart coupler A. This is shown in the side sectional view of FIG. 3 in a state where the couplers A and B are completely connected. In addition, the main body 11 of the coupler B is provided on a mounting base 24 via a connector receiving base 17, and a roller 25 is mounted on a part of the main body 11 so that the main body 11 can be smoothly moved forward and backward by the cylinder 12.

As described above, according to the present invention, the springs 23 are provided on the contacts 13 of the coupler B so as to be movable, so that the couplers A and B are automatically balanced. That is, the hydraulic cylinder 12 presses the contacts against each other to bend the spring 23,
After clamping with the air cylinder 18, the hydraulic cylinder 12 is released to keep the surface pressure of the coupling surface by the spring 23.
Further, the rear end of the body 11 of the coupler B is connected to and supported by the hydraulic cylinder 12, and when operating the coupling, the lock fitting 19 belonging to the coupler B is unlocked and then the hydraulic cylinder 12 is operated. When the hydraulic cylinder 12 is actuated by operating the coupler, the main body 11 of the coupler B begins to move forward, and by continuing the forward movement, the push rods 8 and 20 provided on both couplers A and B are connected to each other. The rollers (not shown in the figure) provided on the push rods 8 and 20 are pressed against the receiving plates 21 and 9 of A and A, and the supporting shafts 7a and 22a are used as rotating shafts to cover the cover.
Each pair of electric contacts 5 and contacts 13 butt and contact each other as 7 and 22 are gradually approaching while opening each other, and the movable contacts 14 of the respective electrode rods 16 fix the connector pedestal 17. A power supply circuit is formed in sliding contact with the contact 15. On the other hand, when the lock cylinder 18 is operated to be clamped (forward), the tip hook portion 19a (Fig. 3) of the lock fitting 19 engages with the lock pin 1a provided on the body 1 to complete the connecting operation, and the connecting state. Can hold. When the connection is released, first, the hydraulic cylinder 12 is pressed to unclamp the lock fitting 19, and the tip hook portion 19a of the lock fitting 19 is removed from the lock pin 1a of the mating coupler A. Next, when the coupler B is operated to be released, the cylinder 12 operates, the coupler B starts to move backward, and the covers 7 and 22 that have been opened by pushing each other also start closing as the coupler B moves backward, and the push rods 8 and 20 receive the push rods 8 and 20. Apart from the gold 21 and 9, the covers 7 and 22 start to rotate around the shafts 7a and 22a with the help of the springs to completely close and to complete the releasing action.

As described above, according to the present invention, when the couplers A and B are operated to be connected, and the respective butting surfaces are not parallel but inclined at an angle, the push bars 8 and 20 for opening and closing the cover are mutually connected. When the ball joint 4 is pressed against the mates 21 and 9 of the other party, the end face of the body 1 of the coupler A moves in parallel with the end face of the body 11 of the coupler B, and the coupler B further advances to move one pair each. When the electric contactor 13 and the contactor 13 are pressed against each other, and the connection pressing surfaces are also pressed against each other, the reaction force brings them closer to the parallel state and the connection is established. When the coupler is released from this state and the coupler B begins to retract and the connecting pressing surface and the contact 13 begin to separate from the electric contact 5 of the coupler A, the six supporting frames 2 on the coupler A side are supported. The self-centering devices 6a to 6f, that is, the bearing device that supports the body 1 of the coupler A at the tip end so that the body 1 of the coupler A is always returned to the center position, and the coupler B retracts and becomes the released state Couplers A are actuated by devices 6a-6f
Can smoothly and surely return to the state before connection. Thus, according to the present invention, it is possible to automatically connect and disconnect both couplers. Sliding device 3
Is used for operations that require parallel movement for position adjustment after connection. As described above, according to the present invention, the remote attachment / detachment can be performed manually or automatically, the non-parallelism of the contact surface is naturally corrected, and the movement of the tundish after the connection can be followed. Has a great deal.

[Brief description of drawings]

Figure 1 shows a tundish coupler A, and Figure A shows a cover 7.
2 is a front sectional view, and FIG. 3C is a cover 7.
1 is a side view including FIG. 2 and FIG. 2 is a side view on a different side. Second
The figure shows the tundish car coupler B, and the figure a shows the cover 22.
Figure 2 is a front cross-sectional view, and Figure C is a cover 22.
2 is a partial sectional view of the lock fitting 19 and the cover, except for the side view. FIG. 3 is a side sectional view showing a state in which the coupler A and the coupler B are completely connected. In the figure, A is a tundish coupler, 1 is a body, 2 is a mounting frame, 3 is a sliding device, 4 is a ball joint, 5 is an electric contactor, 6a
6f is an automatic centering device, 7 is a cover, 8 is a push rod, and 9 is a money receiver. Further, B is a coupler for a tundish car, 11 is a main body, 12 is a cylinder, 13 is a contact, 14 is a movable connector, 15 is a fixed connector, 16 is an electrode rod, 17 is a connector pedestal, and 18 is Air cylinder,
19 is a lock metal fitting, 20 is a push rod, 21 is a receiving metal, 22 is a cover, 23 is a spring, 24 is a mount, and 25 is a roller.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Ayagaki 2-3-4 Chuo, Hachimanto-ku, Kitakyushu, Fukuoka Prefecture Taihei Kogyo Building (72) Inventor Takashi Tochihara, 46, Nakahara, Tobata-ku, Kitakyushu, Fukuoka 59 Nittetsu Plant Design Co., Ltd. (72) Inventor Katsuhiro Kinoshita 2-3-6 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Co., Ltd. (72) Inventor Shigeru Kaji 1-1-18 Kitahojiya, Ota-ku, Tokyo No. 17 Inside Yutaka Manufacturing Co., Ltd. (56) Reference JP-A-2-54877 (JP, A) Actual development Sho 51-44896 (JP, U)

Claims (1)

[Claims] 1. A tundish coupler A and a tundish car coupler B;
It has a pair of electric contacts 5 and its mounting frame 2 is supported by a plurality of self-centering devices 6a to 6f so as to be freely decentered from four circumferences, and the body 1 is rotatable using a ball joint 4. While the coupler B is attached to the sliding device 3, the coupler B is provided with a main body 11 which is moved forward and backward by a forward and backward movement cylinder 12, and the main body 11 is press-contacted with or separated from the pair of electric contacts 5 and pressure-contacted. By providing a pair of contactors 13 with springs 23 for balancing with the time contact pressure at the tip, and a pair of electrode rods 16 each having a pair of movable connectors 14 in a part thereof, these contacts are made. The ball joint 4 automatically maintains the parallelism even when the contact portions of the couplers A and B are inclined at an angle while maintaining balance at the time of coupling the children 5 and 13, and the automatic centering devices 6a to 6a. Automatic connection of power supply, characterized by automatic restoration by 6f Location.