Steel ingot smelting device and method for batch production of high-quality wind power main shafts

Abstract

The invention belongs to the technical field of ferrous metallurgy, particularly relates to a smelting device and method for batch production of steel ingots for high-quality wind power spindles, and provides the following scheme aiming at the problem that when the device generates large vibration, rigid connection between an electrode of an LF furnace and a fixing device is prone to damage: the smelting device comprises a straddle carrier base; a steel ladle fixing module is arranged on the straddle carrier base, a mounting frame is arranged on one side of the straddle carrier base, an electrode mounting and fixing module is arranged on the mounting frame, two mounting holes are formed in the mounting frame, hydraulic cylinders are fixedly connected into the two mounting holes, and the driving ends of the two hydraulic cylinders are fixedly connected with the same furnace cover body. According to the steel ingot smelting device and method for batch production of the high-quality wind power main shafts, the electrodes can be conveniently installed and fixed, damage caused by rigid connection between the electrodes and the fixing device can be avoided when large vibration is encountered, and the service life of the electrodes is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of iron and steel metallurgy, and particularly relates to a steel ingot smelting device and method for batch production of high-quality steel for wind power spindles. Background Art

[0002] The large-scale development of wind turbines, the platformization of models, the intelligentization, the lightweight of models, and the rapid application of new technologies are the core paths for the development of wind power. Following the development trend of large-scale, high-end, and oceanic of the wind power unit, the wind power spindle needs to start from the steel ingot preparation process to meet the requirements of higher performance and lower manufacturing cost of the wind power spindle.

[0003] In the prior art, during the refining process, when the molten steel in the furnace fluctuates violently and splashes, it will generate a large vibration. Due to the rigid connection between the electrode of the LF furnace and the fixing device, the electrode is easily damaged when encountering vibration, affecting the use effect. Summary of the Invention

[0004] The present invention discloses a steel ingot smelting device and method for batch production of high-quality steel for wind power spindles, aiming to solve the technical problem that when the device generates a large vibration, the rigid connection between the electrode of the LF furnace and the fixing device is easily damaged.

[0005] A steel ingot smelting device for batch production of high-quality steel for wind power spindles proposed by the present invention includes a gantry car base, a ladle fixing module is arranged on the gantry car base, and a mounting frame is arranged on one side of the gantry car base. An electrode fixing module is arranged on the mounting frame. Two mounting holes are opened on the mounting frame, and hydraulic cylinders are fixedly connected in both of the two mounting holes. The driving ends of the two hydraulic cylinders are fixedly connected to the same furnace cover body. A feed pipe and a furnace cover stabilizing module are arranged on the furnace cover body. The electrode fixing module includes a mounting frame, and the mounting frame is fixedly connected to the inner wall of the mounting frame. The ladle fixing module includes a sliding table one and a sliding table two, and both the sliding table one and the sliding table two slide on the gantry car base. The same ladle body is arranged on the tops of the sliding table one and the sliding table two. A porous plug is arranged in the ladle body. The furnace cover stabilizing module includes a mounting ring frame, and the mounting ring frame is connected to the bottom of the furnace cover body.

[0006] In a preferred solution, a plurality of fixing ring frames are fixedly connected to the inner walls of the upper and lower sides of the mounting frame at equal circumferential intervals. Clamping pads one are fixedly connected to the inner walls of the plurality of fixing ring frames. The same sliding ring frame is slidably connected between the corresponding upper and lower two fixing ring frames. Clamping pads two are fixedly connected to the inner walls of the plurality of sliding ring frames. Electrode bodies are arranged in the plurality of sliding ring frames.

[0007] In a preferred embodiment, a mounting seat and a driving motor are fixedly connected to the top of the mounting frame. A round hole is formed in the mounting seat, and a winding drum is movably connected in the round hole. A winding rope is wound around the outer portion of the winding drum. One end of the winding rope away from the winding drum is fixedly connected to the corresponding sliding ring frame, and the output end of the driving motor is fixedly connected to one side of the winding drum.

[0008] In a preferred embodiment, fixing holes are formed in the mounting frame, and limiting columns are fixedly connected in the fixing holes. A first sliding seat and a second sliding seat are slidably connected to the outer portion of the limiting columns. A plurality of first connecting rods are equidistantly and movably connected to the outer circumference of the first sliding seat. One end of each of the plurality of first connecting rods away from the first sliding seat is movably connected to the corresponding sliding ring frame. A plurality of second connecting rods are equidistantly and movably connected to the outer circumference of the second sliding seat. One end of each of the plurality of second connecting rods away from the second sliding seat is movably connected to the corresponding sliding ring frame.

[0009] In a preferred embodiment, a first mounting member is fixedly connected to the top of the second sliding seat, and a second mounting member is fixedly connected to the bottom of the second sliding seat. A spring is fixedly connected to the inner wall of the bottom of the first mounting member, and one end of the spring away from the first mounting member is fixedly connected to the second mounting member.

[0010] By providing an electrode fixing module, the driving motor rotates the winding drum, and the winding rope pulls the sliding ring frame, so that the first sliding seat and the second sliding seat are respectively pulled by the first connecting rods and the second connecting rods to compress the spring and slide towards each other, forcing the sliding ring frames in other directions to slide outwards under the push of the first connecting rods and the second connecting rods. The electrode body is installed and fixed by the first clamping pad and the second clamping pad, which can avoid damage caused by the rigid connection between the electrode and the fixing device when the device generates large vibrations, and improve the service life of the electrode.

[0011] In a preferred embodiment, rotating shafts are movably connected to opposite sides of the ladle transfer car base. A first gear is fixedly connected to the outer portion of each of the two rotating shafts. A first rack is fixedly connected to the bottom of the first sliding table, and a second rack is fixedly connected to the top of the second sliding table. The first rack and the second rack are both meshed with the first gear.

[0012] In a preferred embodiment, two hydraulic rods are fixedly connected to the top of the ladle transfer car base, and the driving ends of the two hydraulic rods are fixedly connected to the first sliding table.

[0013] By providing a ladle fixing module, when the ladle body is hoisted onto the ladle transfer car base, the two hydraulic rods are started to push the first sliding table to move towards the ladle body. At the same time, due to the meshing of the first rack and the first gear, the first gear is forced to rotate, and the second sliding table is driven to move synchronously and towards each other through the meshing of the second rack, so as to clamp and fix the ladle body, which can conveniently fix the ladle body to prevent accidents.

[0014] In a preferred embodiment, a movable ring is movably connected to the mounting ring frame. A plurality of arc-shaped grooves are circumferentially and equidistantly formed on the movable ring. A plurality of sliding rods are slidably connected in the plurality of arc-shaped grooves. A plurality of sliding grooves are circumferentially and equidistantly formed on the mounting ring frame. A plurality of sliding members are slidably connected in the plurality of sliding grooves. A clamping block is fixedly connected to one side of each of the plurality of sliding members. Each of the plurality of sliding rods is fixedly connected to the corresponding sliding member.

[0015] In a preferred embodiment, a toothed ring is fixedly connected to the outer wall of the movable ring, and a universal motor is fixedly connected to one side of the furnace cover body. A second gear is fixedly connected to the output end of the universal motor. The second gear meshes with the toothed ring.

[0016] By providing a furnace cover stability module, the furnace cover body is lowered to an appropriate height by the hydraulic cylinders on both sides. The universal motor is started to drive the movable ring to rotate through meshing, forcing the plurality of sliding rods to drive the sliding members to slide towards the center. The steel ladle body is fixedly clamped by the clamping blocks on the outside, avoiding collision with the steel ladle body and being able to block the splashed steel slag to a certain extent, preventing damage to the other components of the device.

[0017] A method for smelting steel ingots for mass-producing high-quality wind power spindle uses a device for smelting steel ingots for mass-producing high-quality wind power spindle as described above, and includes the following steps:

[0018] Step 1: When the steel ladle body is hoisted to the overpass vehicle base, the hydraulic rods on both sides are started to push the sliding table 1 to move towards the steel ladle body. At the same time, due to the meshing of the first rack and the first gear, the first gear is forced to rotate, and the second sliding table is driven to move synchronously in the opposite direction through the meshing of the second rack, clamping and fixing the steel ladle body.

[0019] Step 2: When the steel ladle body is fixed and reaches the designated position, the hydraulic cylinders on both sides are started to lower the furnace cover body to an appropriate height. The universal motor is started to drive the movable ring to rotate through meshing, forcing the plurality of sliding rods to drive the sliding members to slide towards the center. The steel ladle body is fixedly clamped on the outside by the clamping blocks, keeping the furnace cover body stable and being able to block the splashed steel slag to a certain extent, preventing damage to the other components of the device.

[0020] Step 3: Lower the electrode body into the steel plate body. After reaching the required height, stop lowering. Start the drive motor to rotate the winding drum, and pull the sliding ring frame through the winding rope, so that the first sliding seat and the second sliding seat compress the springs and slide towards each other under the pulling of the first connecting rod and the second connecting rod respectively, forcing the sliding ring frames in other directions to slide outwards under the pushing of the first connecting rod and the second connecting rod, and installing and fixing the electrode body through the first clamping pad and the second clamping pad, preventing the electrode body from being damaged when encountering vibration during the refining process.

[0021] As can be seen from the above, the ingot smelting device for batch production of high-quality wind power spindle steel provided by the present invention can conveniently install and fix the electrodes through the electrode fixing module, and can avoid damage caused by the rigid connection between the electrodes and the fixing device when the device generates large vibrations, improving the service life of the electrodes. At the same time, when the ladle body is placed, the ladle fixing module can fix the ladle body to prevent accidents, and through the furnace cover stability module, the furnace cover body can be stabilized outside the ladle during the refining process, avoiding collision with the ladle body and blocking the splashing steel slag to a certain extent, preventing damage to other components of the device. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the structure at the mounting frame of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention;

[0024] Figure 3 It is a cross-sectional view of the internal structure of the mounting frame of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention;

[0025] Figure 4 It is a schematic diagram of the structure at one place of the sliding table of the electrode fixing module of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the ladle fixing module of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the furnace cover stability module of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention;

[0028] Figure 7 It is a cross-sectional view of the structure at the movable ring of the furnace cover stability module of an ingot smelting device for batch production of high-quality wind power spindle steel proposed by the present invention.

[0029] In the figure: 1. Cross-car base; 2. Mounting frame; 3. Ladle body; 4. Furnace cover body; 5. Electrode fixing module; 501. Mounting frame; 502. Mounting seat; 503. Driving motor; 504. Winding drum; 505. Winding rope; 506. Limiting column; 507. Fixed ring frame; 508. Clamping pad 1; 509. Sliding ring frame; 510. Clamping pad 2; 511. Sliding seat 1; 512. Sliding seat 2; 513. Mounting part 1; 514. Spring; 515. Mounting part 2; 516. Connecting rod 1 ;517, connecting rod 2; 6, ladle fixing module; 601, hydraulic rod; 602, sliding table 1; 603, rack 1; 604, sliding table 2; 605, rack 2; 606, gear 1; 7, furnace cover stabilization module; 701, mounting ring frame; 702, movable ring; 703, gear ring; 704, arc groove; 705, sliding rod; 706, sliding part; 707, clamping block; 708, gear 2; 709, universal motor; 8, hydraulic cylinder; 9, electrode body; 10, air brick; 11, feed pipe. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] The present invention discloses a device for smelting steel ingots for mass production of high-quality wind turbine main shafts, which is mainly used in scenarios where the rigid connection between the electrode and the fixing device of the LF furnace is easily damaged when the device generates large vibrations.

[0032] Reference Figures 1 - 7 A device for smelting steel ingots for mass production of high-quality wind turbine main shafts, comprising a cross-car base 1, a ladle fixing module 6 is arranged on the cross-car base 1, and a mounting frame 2 is arranged on one side of the cross-car base 1, an electrode fixing module 5 is arranged on the mounting frame 2, two mounting holes are provided on the mounting frame 2, hydraulic cylinders 8 are fixedly connected in both mounting holes, the driving ends of the two hydraulic cylinders 8 are fixedly connected to the same furnace cover body 4, a feed pipe 11 and a furnace cover stabilizing module 7 are arranged on the furnace cover body 4, and the electrode fixing module 5 comprises a mounting frame 501, and the mounting frame 501 is fixedly connected to the inner wall of the mounting frame 2, the ladle fixing module 6 comprises a sliding platform 1 602 and a sliding platform 2 604, and the sliding platform 1 602 and the sliding platform 2 604 are both slid on the straddle car base 1, the tops of the sliding platforms 1 602 and 604 are provided with the same ladle body 3, and the ladle body 3 is provided with air-permeable bricks 10, and the furnace cover stabilizing module 7 comprises a mounting ring frame 701, and the mounting ring frame 701 is connected to the bottom of the furnace cover body 4.

[0033] Reference Figure 1 ,Figure 2 and Figure 3 On the inner walls of the upper and lower sides of the mounting frame 501, a plurality of fixed ring frames 507 are fixedly connected at equal circumferential intervals. Clamping pads I 508 are fixedly connected to the inner walls of the plurality of fixed ring frames 507. A same sliding ring frame 509 is slidably connected between the corresponding upper and lower fixed ring frames 507. Clamping pads II 510 are fixedly connected to the inner walls of the plurality of sliding ring frames 509. Electrode bodies 9 are arranged in the plurality of sliding ring frames 509.

[0034] Refer to Figure 1 、 Figure 2 and Figure 3 As shown in FIGS., a mounting seat 502 and a driving motor 503 are fixedly connected to the top of the mounting frame 2. A circular hole is formed in the mounting seat 502. A winding drum 504 is movably connected in the circular hole. A winding rope 505 is wound around the outside of the winding drum 504. One end of the winding rope 505 far from the winding drum 504 is fixedly connected to the corresponding sliding ring frame 509. And the output end of the driving motor 503 is fixedly connected to one side of the winding drum 504.

[0035] Refer to Figure 1 、 Figure 3 and Figure 4 As shown in FIGS., fixing holes are formed in the mounting frame 501. Position-limiting columns 506 are fixedly connected in the fixing holes. A sliding seat I 511 and a sliding seat II 512 are slidably connected to the outside of the position-limiting columns 506. A plurality of connecting rods I 516 are movably connected at equal circumferential intervals to the outside of the sliding seat I 511. One ends of the plurality of connecting rods I 516 far from the sliding seat I 511 are movably connected to the corresponding sliding ring frames 509. And a plurality of connecting rods II 517 are movably connected at equal circumferential intervals to the outside of the sliding seat II 512. One ends of the plurality of connecting rods II 517 far from the sliding seat II 512 are movably connected to the corresponding sliding ring frames 509.

[0036] Refer to Figure 1 、 Figure 3 and Figure 4 As shown in FIGS., a mounting member I 513 is fixedly connected to the top of the sliding seat II 512. And a mounting member II 515 is fixedly connected to the bottom of the sliding seat II 512. A spring 514 is fixedly connected to the inner wall of the bottom of the mounting member I 513. One end of the spring 514 far from the mounting member I 513 is fixedly connected to the mounting member II 515.

[0037] In a specific application scenario, the driving motor 503 is rotated to wind up the winding drum 504, and the sliding ring frame 509 is pulled by the winding rope 505, so that the first sliding seat 511 and the second sliding seat 512 are respectively compressed against each other by the springs 514 under the pulling of the first connecting rod 516 and the second connecting rod 517, forcing the sliding ring frames 509 in other directions to slide outwards under the pushing of the first connecting rod 516 and the second connecting rod 517, and the electrode body 9 is installed and fixed by the first clamping pad 508 and the second clamping pad 510.

[0038] Referring to Figure 1 and Figure 5 , rotating shafts are movably connected to opposite sides of the transfer car base 1, a first gear 606 is fixedly connected to the outside of each of the two rotating shafts, a first rack 603 is fixedly connected to the bottom of the first sliding table 602, a second rack 605 is fixedly connected to the top of the second sliding table 604, and both the first rack 603 and the second rack 605 are engaged with the first gear 606.

[0039] Referring to Figure 1 and Figure 5 , two hydraulic rods 601 are fixedly connected to the top of the transfer car base 1, and the driving ends of the two hydraulic rods 601 are fixedly connected to the first sliding table 602.

[0040] In a specific application scenario, when the ladle body 3 is lifted and transported to the transfer car base 1, the two hydraulic rods 601 are started to push the first sliding table 602 to move towards the ladle body 3. At the same time, due to the engagement between the first rack 603 and the first gear 606, the first gear 606 is forced to rotate, and the second sliding table 604 is driven to move synchronously and towards each other through the engagement of the second rack 605, so as to clamp and fix the ladle body 3.

[0041] Referring to Figure 1 , Figure 6 and Figure 7 , a movable ring 702 is movably connected to the mounting ring frame 701. A plurality of arc-shaped grooves 704 are circumferentially and equidistantly formed in the movable ring 702. A plurality of sliding rods 705 are slidably connected in the plurality of arc-shaped grooves 704. A plurality of sliding grooves are circumferentially and equidistantly formed in the mounting ring frame 701. A plurality of sliding members 706 are slidably connected in the plurality of sliding grooves. A clamping block 707 is fixedly connected to one side of each of the plurality of sliding members 706, and the plurality of sliding rods 705 are fixedly connected to the corresponding sliding members 706.

[0042] Referring to Figure 1 , Figure 6 and Figure 7 , a toothed ring 703 is fixedly connected to the outer wall of the movable ring 702, and a universal motor 709 is fixedly connected to one side of the furnace cover body 4. A second gear 708 is fixedly connected to the output end of the universal motor 709, and the second gear 708 is engaged with the toothed ring 703.

[0043] In a specific application scenario, the universal motor 709 meshes and drives the movable ring 702 to rotate, forcing multiple sliding rods 705 to slide within the arc-shaped groove 704, driving the slider 706 to slide towards the center, and being fixedly clamped to the outside of the ladle body 3 by the clamping block 707. While avoiding collision with the ladle body 3, it can block the splashing steel slag to a certain extent and prevent damage to the other components of the device.

[0044] A method for smelting ingots for high-quality wind power spindle in batch production, using a device for smelting ingots for high-quality wind power spindle in batch production as described above, includes the following steps:

[0045] Step 1: When the ladle body 3 is hoisted to the overpass vehicle base 1, start the hydraulic rods 601 on both sides to push the first sliding table 602 towards the ladle body 3. At the same time, due to the mutual meshing of the first rack 603 and the first gear 606, the first gear 606 is forced to rotate, and through the meshing of the second rack 605, the second sliding table 604 is driven to move towards each other synchronously, clamping and fixing the ladle body 3.

[0046] Step 2: When the ladle body 3 is fixed and reaches the specified position, start the hydraulic cylinders 8 on both sides to lower the furnace cover body 4 to an appropriate height. Start the universal motor 709 to mesh and drive the movable ring 702 to rotate, forcing multiple sliding rods 705 to drive the slider 706 to slide towards the center, and being fixedly clamped to the outside of the ladle body 3 by the clamping block 707. While keeping the furnace cover body 4 stable, it can block the splashing steel slag to a certain extent.

[0047] Step 3: Lower the electrode body 9 into the steel plate body. Stop lowering when reaching the required height. Start the drive motor 503 to rotate the winding drum 504, and pull the sliding ring frame 509 through the winding rope 505, so that the first sliding seat 511 and the second sliding seat 512 compress the spring 514 and slide towards each other under the pulling of the first connecting rod 516 and the second connecting rod 517 respectively. Force the sliding ring frames 509 in other directions to slide outwards under the pushing of the first connecting rod 516 and the second connecting rod 517, and install and fix the electrode body 9 through the first clamping pad 508 and the second clamping pad 510.

[0048] Working principle: During the refining process in the smelting process, after the ladle body 3 is lifted onto the gantry car base 1, the hydraulic rods 601 on both sides are started to push the first sliding table 602 towards the ladle body 3. At the same time, due to the meshing of the first rack 603 and the first gear 606, the first gear 606 is forced to rotate, and the second sliding table 604 is driven to move synchronously in the opposite direction through the meshing of the second rack 605, clamping and fixing the ladle body 3. When the ladle body 3 is fixed and reaches the designated position, the hydraulic cylinders 8 on both sides are started to lower the furnace cover body 4 to an appropriate height. The general motor 709 is started to rotate the second gear 708, and the movable ring 702 is driven to rotate through the meshing of the gear ring 703, forcing the plurality of sliding rods 705 to slide in the arc-shaped groove 704, driving the sliding member 706 to slide towards the center, and fixing and clamping the outside of the ladle body 3 through the clamping block 707. While keeping the furnace cover body 4 stable, it can block the splashing steel slag to a certain extent, avoiding damage to the other components of the device. The electrode body 9 is lowered into the steel plate body, and when it reaches the required height, the lowering is stopped. The driving motor 503 is started to rotate the winding drum 504, and the sliding ring frame 509 is pulled through the winding rope 505, so that the first sliding seat 511 and the second sliding seat 512 are respectively pulled by the first connecting rod 516 and the second connecting rod 517 to compress the spring 514 and slide towards each other, forcing the sliding ring frames 509 in other directions to slide outwards under the push of the first connecting rod 516 and the second connecting rod 517, and the electrode body 9 is installed and fixed through the first clamping pad 508 and the second clamping pad 510, preventing the electrode body 9 from being damaged when encountering vibration during the refining process.

[0049] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A smelting device for mass production of high-quality steel ingots for wind turbine main shafts, comprising a straddle carrier base (1), characterized in that: The straddle carrier base (1) is provided with a ladle fixing module (6), and a mounting frame (2) is provided on one side of the straddle carrier base (1), an electrode fixing module (5) is provided on the mounting frame (2), two mounting holes are provided on the mounting frame (2), hydraulic cylinders (8) are fixedly connected in the two mounting holes, the driving ends of the two hydraulic cylinders (8) are fixedly connected to the same furnace cover body (4), a feed pipe (11) and a furnace cover stabilizing module (7) are provided on the furnace cover body (4), the electrode fixing module (5) comprises a mounting frame (501), and the mounting frame (50 1) is fixedly connected to the inner wall of the mounting frame (2), the ladle fixing module (6) comprises a sliding platform 1 (602) and a sliding platform 2 (604), and the sliding platform 1 (602) and the sliding platform 2 (604) both slide on the straddle car base (1), the top of the sliding platform 1 (602) and the sliding platform 2 (604) are provided with a same ladle body (3), and the ladle body (3) is provided with a permeable brick (10), and the furnace cover stabilizing module (7) comprises a mounting ring frame (701), and the mounting ring frame (701) is connected to the bottom of the furnace cover body (4) by bolts.

2. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 1 is characterized in that: The inner walls of the upper and lower sides of the installation frame (501) are fixedly connected with a plurality of fixed ring frames (507) at equal distances from each other in the circumference, the inner walls of the plurality of fixed ring frames (507) are fixedly connected with a clamping pad 1 (508), and the corresponding two upper and lower fixed ring frames (507) are slidably connected with the same sliding ring frame (509), the inner walls of the plurality of sliding ring frames (509) are fixedly connected with a clamping pad 2 (510), and the plurality of sliding ring frames (509) are provided with an electrode body (9).

3. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 2 is characterized in that: The top of the mounting frame (2) is fixedly connected to a mounting seat (502) and a driving motor (503); a circular hole is provided on the mounting seat (502); a winding drum (504) is rotatably connected to the circular hole via a bearing; a winding rope (505) is wound around the outside of the winding drum (504); one end of the winding rope (505) away from the winding drum (504) is fixedly connected to a corresponding sliding ring frame (509); and an output end of the driving motor (503) is connected to one side of the winding drum (504) via a coupling.

4. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 3 is characterized in that: The mounting frame (501) is provided with a fixing hole, in which a limiting column (506) is fixedly connected, and the outside of the limiting column (506) is slidably connected to a sliding seat 1 (511) and a sliding seat 2 (512), and the outer circumference of the sliding seat 1 (511) is equidistantly connected to a plurality of connecting rods 1 (516), and one end of the plurality of connecting rods 1 (516) away from the sliding seat 1 (511) is movably connected to a corresponding sliding ring frame (509), and the outer circumference of the sliding seat 2 (512) is equidistantly connected to a plurality of connecting rods 2 (517), and one end of the plurality of connecting rods 2 (517) away from the sliding seat 2 (512) is movably connected to a corresponding sliding ring frame (509).

5. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 4 is characterized in that: The top of the sliding seat 2 (512) is fixedly connected to the mounting member 1 (513), and the bottom of the sliding seat 2 (512) is fixedly connected to the mounting member 2 (515), the bottom inner wall of the mounting member 1 (513) is fixedly connected to the spring (514), and one end of the spring (514) away from the mounting member 1 (513) is fixedly connected to the mounting member 2 (515).

6. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 5, characterized in that: The opposite sides of the straddle carrier base (1) are rotatably connected to rotating shafts via bearings, and the exteriors of the two rotating shafts are fixedly connected to gear 1 (606), and the bottom of the sliding platform 1 (602) is fixedly connected to rack 1 (603), and the top of the sliding platform 2 (604) is fixedly connected to rack 2 (605), and rack 1 (603) and rack 2 (605) are both meshed with gear 1 (606).

7. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 6, characterized in that: Two hydraulic rods (601) are fixedly connected to the top of the straddle carrier base (1), and the driving ends of the two hydraulic rods (601) are fixedly connected to the sliding platform 1 (602).

8. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 7, characterized in that: The mounting ring frame (701) is movably connected to a movable ring (702), a plurality of arc grooves (704) are equidistantly provided on the circumference of the movable ring (702), and sliding rods (705) are slidably connected in the plurality of arc grooves (704), and a plurality of sliding grooves are equidistantly provided on the circumference of the mounting ring frame (701), and sliding members (706) are slidably connected in the plurality of sliding grooves, and a clamping block (707) is fixedly connected to one side of the plurality of sliding members (706), and the plurality of sliding rods (705) are fixedly connected to the corresponding sliding members (706).

9. The device for smelting steel ingots for mass production of high-quality wind turbine main shafts according to claim 8, characterized in that: The outer wall of the movable ring (702) is fixedly connected to a gear ring (703), and one side of the furnace cover body (4) is fixedly connected to a universal motor (709), and the output end of the universal motor (709) is fixedly connected to a gear 2 (708), and the gear 2 (708) and the gear ring (703) are meshed with each other.

10. A method for smelting steel ingots for mass production of high-quality wind turbine main shafts, using a smelting device for mass production of high-quality wind turbine main shafts as described in claim 9, characterized in that: The steps include: Step 1: When the ladle body (3) is hoisted onto the straddle car base (1), the hydraulic rods (601) on both sides are activated to push the sliding platform 1 (602) to move toward the ladle body (3). At the same time, due to the mutual meshing of the rack 1 (603) and the gear 1 (606), the gear 1 (606) is forced to rotate, and the meshing of the rack 2 (605) drives the sliding platform 2 (604) to move synchronously in the opposite direction, thereby clamping and fixing the ladle body (3); Step 2: When the ladle body (3) is fixed and reaches the specified position, the hydraulic cylinders (8) on both sides are started to lower the furnace cover body (4) to a suitable height, and the universal motor (709) is started to engage and drive the movable ring (702) to rotate, forcing the plurality of sliding rods (705) to drive the sliding member (706) to slide toward the center, and the sliding member (706) is fixedly clamped on the outside of the ladle body (3) by the clamping block (707), so as to keep the furnace cover body (4) stable while blocking the splashing slag to a certain extent; Step 3: lower the electrode body (9) into the steel plate body, stop lowering after reaching the required height, start the drive motor (503) to rotate the winding drum (504), and pull the sliding ring frame (509) through the winding rope (505), so that the sliding seat 1 (511) and the sliding seat 2 (512) are respectively pulled by the connecting rod 1 (516) and the connecting rod 2 (517) to compress the spring (514) to slide towards each other, forcing the sliding ring frame (509) in other directions to slide outward under the push of the connecting rod 1 (516) and the connecting rod 2 (517), and install and fix the electrode body (9) through the clamping pad 1 (508) and the clamping pad 2 (510) to prevent the electrode body (9) from being damaged when encountering vibration during the refining process.

Images