Electrode exchange device of electroslag furnace

Abstract

The utility model discloses an electroslag furnace electrode exchange device which comprises a left fixing frame and a right fixing frame, lifting mechanisms are assembled in the left fixing frame and the right fixing frame respectively, mounting frames are assembled in the left fixing frame and the right fixing frame, the lifting mechanisms are in transmission connection with the mounting frames, rotating arms are assembled in the mounting frames, and the rotating arms are in transmission connection with the left fixing frame and the right fixing frame. And a clamping mechanism is assembled in the rotating arm. A left fixing frame and a right fixing frame which are oppositely distributed in a left-right mode are arranged, mounting frames are assembled in the left fixing frame and the right fixing frame through lifting mechanisms respectively, clamping mechanisms capable of rotating are arranged in the mounting frames, and the lifting mechanisms are matched with the clamping mechanisms, so that the clamping mechanisms are clamped in the mounting frames. The replacement operation between the consumable electrode and the crystallizer in the smelting process can be alternately completed from the left side and the right side, the requirement for smelting is met, meanwhile, the replacement efficiency of the consumable electrode is improved, and the exchange time of the consumable electrode is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of electric slag furnaces, in particular to an exchange device for electric slag furnace electrodes. Background Art

[0002] When using an electroslag furnace to smelt steel, consumable electrodes are needed. During the smelting process, some consumable electrodes will remain. Generally, there are two ways to deal with consumable electrodes: one is to directly return the remaining consumable electrodes to the furnace and remelt them into molten steel, and then re-make new consumable electrodes; the other is to re-weld the remaining consumable electrodes with consumable electrodes for secondary use. Although the first method re-melts molten steel to form consumable electrodes, which can meet the tonnage requirements of steel ingots, the large number of consumable electrodes returned to the furnace greatly increases the smelting pressure of the consumable furnace. Although the second direct welding method does not need to be returned to the furnace for re-smelting, the secondary welding greatly increases the requirements for welding workers. While ensuring the welding quality, it is also necessary to ensure good welding coaxiality. It often happens that the welding cannot be used. Finally, secondary cutting is performed, and the direct return to the furnace is serious. The labor intensity of the workers is high and the utilization rate is extremely low. The above two methods will increase the production cost of consumable electrodes, and directly lead to a significant increase in the cost of electroslag ingots in steel companies or heavy industries. To this end, we propose an exchange device for electroslag furnace electrodes. Utility Model Content

[0003] The utility model aims to provide an exchange device for electroslag furnace electrodes to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exchange device for an electroslag furnace electrode, comprising a left fixed frame and a right fixed frame, wherein the left fixed frame and the right fixed frame are respectively equipped with a lifting mechanism, wherein the left fixed frame and the right fixed frame are equipped with a mounting frame, wherein the lifting mechanism is transmission-connected with the mounting frame, wherein the mounting frame is equipped with a rotating arm, and wherein the rotating arm is equipped with a clamping mechanism.

[0005] Preferably, the lifting mechanism includes a servo motor, the output end of the servo motor is fixedly connected to a lead screw, the lead screw is transmission-connected to the mounting frame, the side walls of the left and right fixing frames are respectively fixedly assembled with limit shafts, and the mounting frame is slidably connected to the limit shafts.

[0006] Preferably, the clamping mechanism comprises a clamping claw, and the clamping claw is assembled in a rotating arm. A cylinder is fixedly assembled on the side wall of the rotating arm, and an output end of the cylinder is drivingly connected to the clamping claw.

[0007] Preferably, the driving mechanism includes a driving motor, which is fixedly mounted on the side wall of the mounting frame. A rotating frame rotatably connected to the mounting frame is installed inside the mounting frame. A driving gear is fixedly connected to the output end of the driving motor, and a transmission gear is fixedly mounted on the top of the rotating frame, and the driving gear is meshed with the transmission gear.

[0008] Compared with the prior art, the beneficial effects of the utility model are: an exchange device for electric slag furnace electrodes, provided with a left fixed frame and a right fixed frame which are relatively distributed on the left and right, and mounting frames are respectively assembled in the left fixed frame and the right fixed frame through a lifting mechanism, and a rotatable clamping mechanism is arranged in the mounting frame, and through the mutual cooperation of the lifting mechanism and the clamping mechanism, the replacement operation between the consumable electrode and the crystallizer during the smelting process can be completed alternately from the left and right sides, which not only meets the smelting requirements but also improves the replacement efficiency of the consumable electrode and reduces the exchange time of the consumable electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Figure 2 for Figure 1 Detail of point a in the figure.

[0011] Figure 3 It is a side view of the utility model.

[0012] In the figure: 1. left fixed frame, 2. right fixed frame, 3. lifting mechanism, 31. servo motor, 32. limit shaft, 4. mounting frame, 5. rotating arm, 6. clamping mechanism, 61. clamping claw, 62. cylinder, 7. driving mechanism, 71. driving motor, 72. rotating frame, 73. driving gear, 74. transmission gear, 8. consumable electrode, 9. crystallizer. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: an exchange device for an electroslag furnace electrode, comprising a left fixed frame 1 and a right fixed frame 2, wherein a lifting mechanism 3 is respectively installed in the left fixed frame 1 and the right fixed frame 2, wherein a mounting frame 4 is respectively installed in the left fixed frame 1 and the right fixed frame 2, and the lifting mechanism 3 is transmission-connected with the mounting frame 4, and the mounting frame 4 is driven by the lifting mechanism 3 to move the upper and lower travel positions in the left fixed frame 1 and the right fixed frame 2.

[0015] The lifting mechanism 3 includes a servo motor 31, which is fixedly mounted on the top of the left fixing frame 1 or the right fixing frame 2. The output end of the servo motor 31 is fixedly connected with a lead screw, which is mounted in the inner cavity of the left fixing frame 1 or the right fixing frame 2 (not shown in the figure), and the lead screw is transmission-connected with the mounting frame 4. The servo motor 31 cooperates with the lead screw to drive the parts transmission-connected therewith to move, which is a mature prior art. Therefore, it will not be described too much in this scheme. The side walls of the left fixing frame 1 and the right fixing frame 2 are respectively fixedly mounted with limit shafts 32, and the mounting frames 4 located in the left fixing frame 1 and the right fixing frame 2 are respectively slidably connected with their corresponding limit shafts 32. The limit shaft 32 limits the mounting frame 4, so that the servo motor 31 drives the lead screw to rotate, and the mounting frame 4 can be adjusted up and down along the left fixing frame 1 and the right fixing frame 2. The servo motor 31 is electrically connected to an external power supply and an external controller, and a control instruction is sent to the servo motor 31 through the external controller to control the output end of the servo motor 31 to rotate forward or reverse.

[0016] like Figure 2 As shown in the figure, the mounting frames 4 on both sides are rotatably connected with rotating arms 5, and the mounting frames 4 are provided with driving mechanisms 7 for driving the rotating arms 5. The driving mechanisms are electrically connected to an external power supply and an external controller. When the driving mechanisms are in action, the rotating arms 5 can be driven to rotate at the center of the fixed frame, so as to facilitate holding and replacement of the electrode.

[0017] like Figure 3 As shown in the figure, the driving mechanism 7 includes a driving motor 71, which is fixedly assembled on the side wall of the mounting frame 4, and a rotating frame 72 is rotatably connected inside the mounting frame 4. The rotating arm 5 is welded and fixed to the side wall of the rotating frame 72. The output end of the driving motor 71 is fixedly connected to a driving gear 73, and the top of the rotating frame 72 is fixedly connected to a transmission gear 74. The driving gear 73 is meshed with the transmission gear 74. The driving motor 71 is electrically connected to an external power supply and an external controller. A control instruction is sent to the driving motor 71 through the external controller, so that the output end of the driving motor 71 drives the driving gear 73 to rotate forward or reverse, so that the rotating frame 72 drives the rotating arm 5 to rotate, and the clamping position of the clamping mechanism 6 is adjusted.

[0018] The rotating arms 5 on both sides are respectively equipped with clamping mechanisms 6 which are arranged opposite to each other. The clamping mechanisms 6 include clamping claws 61 and cylinders 62. Figure 2 As shown in , the clamping jaw 61 includes a fixing portion and a clamping portion. The output end of the cylinder 62 is connected to the clamping portion of the clamping jaw 61. The cylinder 62 is controlled by an external air pump. When the output end of the cylinder 62 drives the clamping portion to move, the clamping portion can cooperate with the fixing portion to clamp the electrode.

[0019] Working principle: During the use of the device, at the beginning of the smelting operation in the electroslag furnace, the consumable electrode 8 is fixed in the crystallizer 9. The position of the crystallizer 9 is adjusted so that the axis of the consumable electrode 8 coincides with the center of the clamping claw 61 in the right fixed frame 2. After the position adjustment of the crystallizer 9 is completed, the mounting frame 4 and the rotating arm 5 are driven to descend by the lifting mechanism 3, and the clamping claw 61 is controlled to clamp and fix the consumable electrode 8. After the consumable electrode 8 is clamped and fixed, the mounting frame 4, the rotating arm 5 and the clamped consumable electrode 8 are driven by the lifting mechanism 3 to rise to a specified height and wait for steelmaking. When the preparation work of the electroslag furnace is completed and steelmaking begins, the lifting mechanism 3 drives the mounting frame 4, the rotating arm 5 and the consumable electrode 8 to descend steadily and slowly to start steelmaking. When the smelting of the consumable electrode 8 is completed, the lifting mechanism 3 drives the remaining electrode tail to rise rapidly. When the bottom part of the electrode exceeds the structure After the crystallizer is formed, the rotating arm 5 is driven by the driving mechanism 7 to rotate, driving the consumable electrode 8 to transfer from the smelting station to the non-smelting station, and the consumable electrode 8 in the corresponding clamp 61 is smelted. At the same time, the clamp 61 in the left fixed frame 1 on the other side clamps the consumable electrode 8 and starts to rotate from the non-smelting station to the smelting station, and the clamp 61 and the consumable electrode 8 are driven by the lifting mechanism 3 to descend rapidly. When it is about to reach the smelting liquid level in the crystallizer, it is adjusted to slowly descend until it descends to the smelting current displayed by the smelting, and then enters the remelting state. At this time, the exchange setting of the consumable electrode 8 is completed, and the consumable electrode 8 in the right fixed frame 2 is replaced again. When the consumable electrode 8 in the left fixed frame 1 is smelted, the consumable electrode 8 is driven by the right fixed frame 2 to be replaced. Through the repeated actions of the clamps 61 on both sides of the device, the time for exchanging electrodes during the smelting process can be shortened, thereby improving production efficiency and reducing production costs.

Claims

1. An electrode replacement device for an electroslag furnace, characterized in that: The invention comprises a left fixing frame (1) and a right fixing frame (2), wherein the left fixing frame (1) and the right fixing frame (2) are respectively provided with a lifting mechanism (3), wherein the left fixing frame (1) and the right fixing frame (2) are provided with a mounting frame (4), wherein the lifting mechanism (3) is transmission-connected with the mounting frame (4), wherein a rotating arm (5) is provided in the mounting frame (4), wherein a driving mechanism (7) is provided between the mounting frame (4) and the rotating arm (5), and wherein a clamping mechanism (6) is provided in the rotating arm (5).

2. The device for replacing an electroslag furnace electrode according to claim 1, characterized in that: The lifting mechanism (3) comprises a servo motor (31), the output end of the servo motor (31) is fixedly connected to a lead screw, the lead screw is drivingly connected to a mounting frame (4), the side walls of the left fixing frame (1) and the right fixing frame (2) are respectively fixedly equipped with a limit shaft (32), and the mounting frame (4) is slidably connected to the limit shaft (32).

3. The replacement device for electroslag furnace electrodes according to claim 1, characterized in that: The clamping mechanism (6) comprises a clamping claw (61), which is assembled in a rotating arm (5). A cylinder (62) is fixedly assembled on the side wall of the rotating arm (5), and an output end of the cylinder (62) is drivingly connected to the clamping claw (61).

4. The device for replacing an electroslag furnace electrode according to claim 1, characterized in that: The driving mechanism (7) comprises a driving motor (71), the driving motor (71) being fixedly mounted on a side wall of a mounting frame (4), a rotating frame (72) being mounted inside the mounting frame (4) and being rotatably connected thereto, a driving gear (73) being fixedly connected to the output end of the driving motor (71), a transmission gear (74) being fixedly mounted on the top of the rotating frame (72), and the driving gear (73) being meshed with the transmission gear (74).

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