Clamping device for assisting positioning of sliding gate

Abstract

The utility model discloses a clamping device for assisting positioning of a sliding gate nozzle, and particularly relates to the technical field of iron and steel smelting, the clamping device comprises a machine cover, a positioning clamping mechanism is arranged on the machine cover, the positioning clamping mechanism comprises side plates fixedly arranged on two sides of the machine cover, servo motors are mounted on the two side plates, screw rods are fixedly arranged at output ends of the two servo motors, and the screw rods are arranged on the machine cover. The two lead screws are both in threaded connection with sliding blocks, the two sliding blocks are both fixedly provided with connecting rods, the two connecting rods are both fixedly provided with clamping blocks, and rotating shafts are rotationally arranged in the two lead screws. When the position of the sliding nozzle needs to be moved, the position of the sliding nozzle can be adjusted only by controlling one servo motor to rotate forwards and controlling the other servo motor to rotate backwards, and the rotating shaft is rotationally arranged between the two lead screws, so that the two lead screws can be ensured to be on the same straight line through the arrangement, and the clamping during moving is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of steel smelting, and more particularly to a clamping device for assisting the positioning of a sliding nozzle. Background Art

[0002] The sliding nozzle of continuous casting is a control device for molten steel during the casting process of the continuous casting machine. It can accurately adjust the water flow from the ladle to the continuous casting tundish to achieve a balance between the inflow and outflow of molten steel, making the continuous casting operation easier to control. It is an indispensable part of smelting.

[0003] The precise position of the sliding nozzle determines the speed and volume of molten steel outflow, so stable clamping is required. In continuous casting production, precise control of the speed and volume of molten steel outflow is crucial to the quality of the ingot. Without stable clamping, the nozzle position is easily affected by the impact of molten steel, equipment vibration, and other factors, causing it to shift. Positional deviation will change the size of the molten steel outflow channel, thereby affecting the quality of the ingot and production stability. A larger channel will cause the molten steel to flow faster and at a higher flow rate, resulting in an uneven internal structure of the ingot, resulting in quality issues such as looseness and cracks, and causing uncontrolled production parameters. A smaller channel will cause the molten steel to flow slower and at a lower flow rate, potentially resulting in incomplete and irregular ingots, leading to reduced ingot quality and production interruptions. In short, to ensure that the speed and volume of molten steel outflow are controllable and precise, and to guarantee ingot quality and production stability, the sliding nozzle must be stably clamped.

[0004] The sliding gate positioning and clamping device in the prior art can only realize the clamping operation of the sliding gate, but cannot complete the movement of the sliding gate after clamping, which makes it difficult for the sliding gate to move in the clamped state. If the sliding gate cannot move, the distribution and switching of molten steel cannot be realized, and the molten steel cannot be accurately distributed to different flow channels. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, a clamping device for assisting in positioning the sliding gate is provided to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A clamping device for assisting the positioning of the sliding gate includes a machine cover provided with a positioning clamping mechanism;

[0008] The positioning and clamping mechanism includes side plates fixedly arranged on both sides of the hood, servo motors are installed on the two side plates, screw rods are fixedly provided at the output ends of the two servo motors, sliders are threadedly connected to the two screw rods, connecting rods are fixedly provided on the two sliders, clamping blocks are fixedly provided on the two connecting rods, and rotating shafts are rotatably provided in the two screw rods;

[0009] Through the above technical solution, the two servo motors can be turned on to control the rotation of the screw rod so that it can cooperate with the slider and clamp the connection to prevent the lack of stable clamping. The water outlet position may be offset, resulting in uncontrolled flow, affecting the quality of the casting and the stability of production. The two screw rods are controlled by separate servo motors. When the sliding water outlet position needs to be moved, it is only necessary to control one servo motor to rotate forward and the other servo motor to rotate reversely to complete the adjustment of the sliding water outlet position. A rotating shaft is set between the two screw rods. This setting can ensure that the two screw rods are in the same straight line, making the clamping more stable during movement.

[0010] Furthermore, a slide bar is fixed between the two side plates, and through holes are formed in both of the slide bars.

[0011] Through the above technical solution, the slider slides on the slide rod, which can achieve the effect of stable sliding.

[0012] Furthermore, threaded through holes are provided in both of the two sliders, and an asbestos fiber pad is provided between the two clamping blocks;

[0013] Through the above technical solution, a threaded through hole is provided to facilitate the fit between the screw rod and the slider.

[0014] Furthermore, a plurality of clamping blocks are fixedly provided on the two asbestos fiber pads, and a plurality of clamping slots are provided in the two clamping blocks;

[0015] Through the above technical solution, the cotton fiber pad and the clamping block are connected through the clamping block and the clamping slot. This arrangement allows for convenient replacement of the cotton fiber pad.

[0016] Furthermore, a rotation groove is provided in each of the two screw rods;

[0017] Through the above technical solution, a rotating groove is provided to facilitate connection of the rotating shaft therein.

[0018] Furthermore, a molten steel delivery pipe is clamped in the two clamping blocks, and a sliding nozzle is clamped at the bottom of the molten steel delivery pipe;

[0019] Through the above technical solution, the molten steel delivery pipe is connected to the sliding nozzle and can then be put into operation.

[0020] Furthermore, a bottom plate is fixedly provided at the bottom of each of the two side plates, and four connecting holes are provided on each of the two bottom plates;

[0021] Through the above technical solution, a bottom plate is provided to facilitate placement of the device, and connection holes are provided to facilitate fixing the bottom plate.

[0022] Technical effects and advantages of this utility model:

[0023] 1. The clamping device for assisting the positioning of the sliding water gate proposed in the utility model only needs to turn on two servo motors to control the rotation of the screw rod so that it can cooperate with the slider and clamp the connection to prevent the water gate position from being offset due to lack of stable clamping, resulting in out-of-control flow and affecting the quality of the casting and the stability of production. The two screw rods are controlled by separate servo motors. When the sliding water gate position needs to be moved, it is only necessary to control one servo motor to rotate forward and the other servo motor to rotate reversely to complete the adjustment of the sliding water gate position, and a rotating shaft is set between the two screw rods. This setting can ensure that the two screw rods are in the same straight line, making the clamping more stable during movement.

[0024] 2. The clamping device for assisting in the positioning of the sliding nozzle proposed in the utility model is provided with a cotton fiber pad on the clamping block. The cotton fiber pad has good high temperature resistance and heat insulation performance, and is relatively soft. There will be no problem of the clamping block being burned by high temperature or the clamping block damaging the connection between the sliding nozzle and the molten steel delivery pipe. The cotton fiber pad and the clamping block are connected by a clamping block and a clamping slot. This arrangement allows for convenient replacement of the cotton fiber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram proposed by the utility model;

[0026] Figure 2 This is the structural diagram of the utility model without the hood;

[0027] Figure 3 This is a half-section structural diagram proposed by the utility model;

[0028] Figure 4 This is the structural diagram of the clamping block proposed by the utility model;

[0029] Figure 5 This is a structural diagram of the cotton fiber pad proposed in this utility model.

[0030] The accompanying drawings are marked as follows: 1. Machine cover; 2. Side panel; 3. Servo motor; 4. Screw; 5. Slider; 6. Connecting rod; 7. Clamp; 8. Rotating shaft; 9. Sliding rod; 10. Through hole; 11. Threaded through hole; 12. Cotton fiber pad; 13. Block; 14. Slot; 15. Rotating groove; 16. Molten steel delivery pipe; 17. Sliding nozzle; 18. Bottom plate; 19. Connecting hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] As attached Figure 1-5 The clamping device for assisting the positioning of the sliding gate shown includes a hood 1, on which a positioning clamping mechanism is provided;

[0033] When the cam 1 is in the working state, the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam 1 is in the working state, and the cam

[0034] In some embodiments, according to Figure 1-5 As shown, a slide rod 9 is fixed between the two side panels 2, and a through hole 10 is opened in each of the two sliders 5 so that the slider 5 can slide on the slide rod 9 to play a role in stable sliding. A threaded through hole 11 is opened in each of the two sliders 5, and an asbestos fiber pad 12 is provided between the two clamping blocks 7. The threaded through hole 11 is opened to facilitate the cooperation between the screw rod 4 and the slider 5. A plurality of card blocks 13 are fixed on the two asbestos fiber pads 12, and a plurality of card slots 14 are opened in the two clamping blocks 7. The cotton fiber pad 12 and the clamping block 7 are connected through the card blocks 13 and the card slots 14. The cotton fiber pad 12 can be easily replaced through this arrangement. A rotation groove 15 is provided in each of the two screw rods 4. The rotation groove 15 is provided to facilitate the connection of the rotating shaft 8 therein. A molten steel delivery pipe 16 is clamped in the two clamping blocks 7. A sliding water gate 17 is provided at the bottom of the molten steel delivery pipe 16. The molten steel delivery pipe 16 is connected to the sliding water gate 17 to carry out work. A bottom plate 18 is fixed to the bottom of the two side panels 2. Four connecting holes 19 are provided on the two bottom plates 18. The bottom plate 18 is provided to facilitate the placement of the device, and connecting holes 19 are provided to facilitate the fixing of the bottom plate 18.

[0035] Working principle of the utility model: When in use, the utility model only needs to dock the molten steel delivery pipe 16 with the sliding nozzle 17, and then place the connection between the two clamping blocks 7. Turn on the two servo motors 3 to control the screw rod 4 to rotate, so that it cooperates with the slider 5 to clamp the connection to prevent the nozzle position from being offset due to lack of stable clamping, resulting in flow loss, affecting the quality of the casting and the stability of production. The two screw rods 4 are controlled by a separate servo motor 3. When the sliding nozzle 17 needs to be moved, it is only necessary to control one servo motor 3 to rotate forward and the other servo motor 3 to rotate reversely, that is, The position of the sliding water nozzle 17 can be adjusted, and a rotating shaft 8 is rotatably set between the two screw rods 4. Through this arrangement, the two screw rods 4 can be ensured to be in the same straight line, making the clamping more stable during movement. A cotton fiber pad 12 is set on the clamping block 7. The cotton fiber pad 12 has good high temperature resistance and heat insulation performance, and is relatively soft. There will be no problem that the high temperature will burn the clamping block 7 or the clamping block 7 will clamp the connection between the sliding water nozzle 17 and the molten steel delivery pipe 16. The cotton fiber pad 12 and the clamping block 7 are connected by a clamping block 13 and a clamping slot 14. Through this arrangement, the cotton fiber pad 12 can be easily replaced.

Claims

1. A clamping device for assisting the positioning of a sliding gate, comprising a hood (1), characterized in that: The hood (1) is provided with a positioning and clamping mechanism; The positioning and clamping mechanism comprises side plates (2) fixedly arranged on both sides of the hood (1), servo motors (3) are mounted on the two side plates (2), screw rods (4) are fixedly arranged at the output ends of the two servo motors (3), sliders (5) are threadedly connected to the two screw rods (4), connecting rods (6) are fixedly arranged on the two sliders (5), clamping blocks (7) are fixedly arranged on the two connecting rods (6), and rotating shafts (8) are rotatably arranged inside the two screw rods (4).

2. The clamping device for assisting the positioning of a sliding gate according to claim 1, characterized in that: A slide bar (9) is fixedly provided between the two side plates (2), and a through hole (10) is provided through each of the two sliders (5).

3. The clamping device for assisting the positioning of a sliding gate according to claim 1, characterized in that: A threaded through hole (11) is provided in each of the two sliding blocks (5), and an asbestos fiber pad (12) is provided between the two clamping blocks (7).

4. The clamping device for assisting the positioning of a sliding gate according to claim 3, characterized in that: A plurality of clamping blocks (13) are fixedly provided on the two asbestos fiber pads (12), and a plurality of clamping slots (14) are provided in the two clamping blocks (7).

5. The clamping device for assisting the positioning of a sliding gate according to claim 1, characterized in that: Rotation grooves (15) are provided in the two screw rods (4).

6. The clamping device for assisting the positioning of a sliding gate according to claim 1, characterized in that: A molten steel delivery pipe (16) is clamped in the two clamping blocks (7), and a sliding water port (17) is clamped at the bottom of the molten steel delivery pipe (16).

7. The clamping device for assisting the positioning of a sliding gate according to claim 1, characterized in that: A bottom plate (18) is fixedly provided at the bottom of each of the two side plates (2), and four connection holes (19) are provided on each of the two bottom plates (18).

Images