Steel ladle turnover device for steelmaking

Abstract

The utility model provides a steel ladle turnover device for steelmaking, which relates to the technical field of metallurgical equipment and comprises a steel ladle, a fixed ring fixed on the outer wall of the steel ladle, a rotating shaft fixed on the side surface of the fixed ring, a rotating arm arranged on the side surface of the rotating shaft, a base rotatably connected with one end of the rotating arm, a support fixed on the top of the base, and a chute arranged at the bottom of the rotating arm. According to the steel ladle overturning device, the hydraulic cylinder drives the piston rod to move upwards, the piston rod drives the sliding block to move in the sliding groove and drives the rotating arm to rotate and lift up at the same time, and therefore the steel ladle is driven to rotate along with the rotating arm. When the hydraulic cylinder turns over the steel ladle to a certain angle, the worm rotating motor is started to drive the worm to rotate, the worm drives the worm gear to rotate and drives the rotating shaft to rotate, so that the steel ladle is driven to be further turned over, the worm gear and worm structure has self-locking performance, namely the worm can drive the worm gear to rotate, the worm gear cannot drive the worm to rotate, and the stability of the steel ladle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a ladle tipping device for steelmaking. Background Art

[0002] The steelmaking ladle is an important container for holding and transporting molten steel during the steelmaking process. It plays a crucial role in the steelmaking production process, especially in the secondary refining and continuous casting processes. The ladle is not only used for storing and transporting molten steel, but also involves the refining treatment of molten steel, including deoxidation, desulfurization, removal of inclusions, modification of inclusions, fine adjustment of composition, control of molten steel temperature, etc. The ladle refining technology has developed rapidly since the 1960s and has become an indispensable part of the modern steel production process.

[0003] In the prior art, after each pouring cycle in the steelmaking process, the ladle needs to be tipped for inspection, maintenance, and cleaning of the remaining slag inside. However, due to the high temperature and large volume of the slag in the ladle, the risk of tipping the ladle is relatively high, and deviation of the angle during the tipping process is likely to cause the slag to overflow. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a ladle tipping device for steelmaking.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A ladle tipping device for steelmaking, including a ladle, a fixed ring is fixed on the outer wall of the ladle, rotating shafts are fixed on the sides of the fixed ring, a rotating arm is arranged on the side of the rotating shaft, one end of the rotating arm is rotatably connected to a base, a support frame is fixed on the top of the base, the other end of the rotating arm is placed on the top of the support frame, a chute is opened at the bottom of the rotating arm, a slider is slidably connected inside the chute, the bottom end of the slider is rotatably connected to a piston rod, and the piston rod is driven by a hydraulic cylinder, and the hydraulic cylinder is fixed on the top of the base.

[0006] Preferably, the rotating shaft is rotatably connected to the rotating arm. A worm gear is fixed on the side of one of the rotating shafts, a worm is meshed on the surface of the worm gear, the worm is driven by a worm rotating motor, and both ends of the worm are connected by bearings to bearing seats, and the bearing seats are fixed on the side of the rotating arm. The helix angle of the worm is less than the equivalent friction angle between the meshing teeth of the worm and the worm gear. When the ladle is tipped by the cooperation of the hydraulic cylinder and the rotating arm, the rotation angle of the ladle is limited to a certain extent. To solve such problems, the utility model further tips the ladle through a worm gear and worm structure. When the hydraulic cylinder tips the ladle to a certain angle, the worm rotating motor is turned on to drive the worm to rotate. The worm drives the worm gear to rotate, drives the rotating shaft to rotate, and thus drives the ladle to further rotate. The worm gear and worm structure has self-locking property, that is, the worm can drive the worm gear to rotate, and the worm gear cannot drive the worm to rotate, improving the stability of the ladle.

[0007] Preferably, a limiting block is fixed to the side surface of the other rotating shaft, and the limiting block laterally limits the rotating shaft, further improving the stability during the rotation of the ladle.

[0008] Preferably, the sliding groove is a T-shaped groove, and the top end of the sliding block is T-shaped, improving the stability of the sliding block.

[0009] Preferably, a support spring is fixed between the side wall of the sliding groove and the side surface of the sliding block, and the support spring provides a supporting force for the sliding block, reducing the load borne by the piston rod when the ladle is turned over.

[0010] Preferably, a cylindrical groove is formed at the top of the support frame, an anti-detachment rope is fixed to the bottom surface of the cylindrical groove, and the other end of the anti-detachment rope is fixed to the bottom of the swing arm. The anti-detachment rope is used to prevent the ladle from tipping over due to large gravity during the turning over of the ladle and provides support for the other end of the ladle.

[0011] Preferably, a cross beam is fixed to the side wall of the base, and the side surface of the base is an inclined plane. Anti-slip patterns are arranged in an array at the bottom of the base, improving the stability of the base, reducing the shaking of the base when the ladle is turned over, and improving the safety of the operation.

[0012] Advantageous Effects

[0013] In the prior art, during the steelmaking process, after each pouring cycle is completed, the ladle needs to be turned over for inspection, maintenance, and cleaning of the remaining slag inside. However, due to the high temperature and large volume of the slag in the ladle, the risk during the turning over of the ladle is relatively high, and deviation of the angle during the turning over process is likely to cause the slag to overflow. To address such problems, the present utility model adopts a turning-over device. The hydraulic cylinder drives the piston rod to move upward, the piston rod drives the sliding block to move in the sliding groove, and at the same time drives the swing arm to rotate and lift, thereby driving the ladle to rotate together with the swing arm to achieve the purpose of turning over. When the hydraulic cylinder turns the ladle to a certain angle, the worm rotation motor is turned on to drive the worm to rotate, the worm drives the worm gear to rotate, drives the rotating shaft to rotate, and thereby drives the ladle to turn over further. The worm and worm gear structure has self-locking property, that is, the worm can drive the worm gear to rotate, and the worm gear cannot drive the worm to rotate, improving the stability of the ladle. Description of the Drawings

[0014] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a three-dimensional structure diagram of the base of the present utility model;

[0016] Figure 3 is a three-dimensional structure diagram of the worm and worm gear structure of the present utility model;

[0017] Figure 4This is a three-dimensional structural schematic diagram of the anti-disengagement structure in the present utility model.

[0018] Legend description:

[0019] 1. Ladle; 2. Base; 3. Support frame; 301. Cylindrical groove; 4. Cross beam; 5. Rotating arm; 501. Slide groove; 6. Hydraulic cylinder; 7. Piston rod; 8. Slide block; 9. Support spring; 10. Limit block; 11. Worm gear; 12. Worm; 13. Worm rotating motor; 14. Anti-disengagement rope; 15. Fixed ring tool. Specific implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present utility model.

[0021] The specific embodiments of the present utility model will be described below with reference to the drawings. Specific embodiment:

[0023] Refer to Figures 1-4 , a ladle tilting device for steelmaking, including a ladle 1. A fixed ring tool 15 is fixed on the outer wall of the ladle 1. Rotating shafts are fixed on the sides of the fixed ring tool 15. A rotating arm 5 is arranged on the side of the rotating shaft. One end of the rotating arm 5 is rotatably connected to a base 2. A support frame 3 is fixed on the top of the base 2. The other end of the rotating arm 5 is placed on the top of the support frame 3. A slide groove 501 is opened at the bottom of the rotating arm 5. A slide block 8 is slidably connected inside the slide groove 501. The bottom end of the slide block 8 is rotatably connected to a piston rod 7, and the piston rod 7 is driven by a hydraulic cylinder 6. The hydraulic cylinder 6 is fixed on the top of the base 2. A cross beam 4 is fixed on the side wall of the base 2, and the side of the base 2 is set as an inclined plane. Anti-slip lines are arranged in an array at the bottom of the base 2, which improves the stability of the base 2, reduces the shaking of the base 2 when the ladle 1 is tilted, and improves the safety of the work.

[0024] The rotating shaft is rotatably connected to the rotating arm 5. A worm gear 11 is fixed to the side surface of one of the rotating shafts. A worm 12 is meshed with the surface of the worm gear 11. The worm 12 is driven by a worm rotating motor 13. Both ends of the worm 12 are connected to bearing seats through bearings. The bearing seats are fixed to the side surface of the rotating arm 5. The helix angle of the worm 12 is smaller than the equivalent friction angle between the meshing teeth of the worm 12 and the worm gear 11. When the ladle is flipped by the cooperation of the hydraulic cylinder 6 and the rotating arm 5, the rotation angle of the ladle 1 is restricted to a certain extent. To solve such problems, the present utility model further flips the ladle 1 through a worm and worm gear structure. After the hydraulic cylinder 6 flips the ladle 1 to a certain angle, the worm rotating motor 13 is turned on to drive the worm 12 to rotate. The worm 12 drives the worm gear 11 to rotate, drives the rotating shaft to rotate, and thus drives the ladle 1 to be further flipped. The worm and worm gear structure has self-locking property, that is, the worm 12 can drive the worm gear 11 to rotate, and the worm gear 11 cannot drive the worm 12 to rotate, improving the stability of the ladle 1. A limiting block 10 is fixed to the side surface of the other rotating shaft. The limiting block 10 performs lateral limiting on the rotating shaft, further improving the stability of the ladle 1 during rotation.

[0025] The chute 501 is provided as a T-shaped groove, and the top end of the slider 8 is provided as a T-shape, improving the stability of the slider 8. A support spring 9 is fixed between the side wall of the chute 501 and the side surface of the slider 8. The support spring 9 provides a supporting force for the slider 8, reducing the load borne by the piston rod 7 when the ladle 1 is flipped.

[0026] A cylindrical groove 301 is formed at the top of the support frame 3. An anti-drop rope 14 is fixed to the bottom surface of the cylindrical groove 301. The other end of the anti-drop rope 14 is fixed to the bottom of the rotating arm 5. The anti-drop rope 14 is used to prevent the ladle 1 from tipping over due to large gravity when flipped, providing support for the other end of the ladle 1.

[0027] In the prior art, during the steelmaking process, after each pouring cycle is completed, the ladle needs to be flipped for inspection, maintenance, and cleaning of the remaining slag inside. However, due to the high temperature and large volume of the slag in the ladle, the risk of ladle flipping is relatively high. Deviation of the angle during the flipping process is likely to cause the slag to overflow. To solve such problems, the present utility model adopts a flipping device. The hydraulic cylinder 6 drives the piston rod 7 to move upward. The piston rod 7 drives the slider 8 to move in the chute 501, and at the same time drives the rotating arm 5 to rotate and lift, thereby driving the ladle 1 to rotate together with the rotating arm 5 to achieve the purpose of flipping. After the hydraulic cylinder 6 flips the ladle 1 to a certain angle, the worm rotating motor 13 is turned on to drive the worm 12 to rotate. The worm 12 drives the worm gear 11 to rotate, drives the rotating shaft to rotate, and thus drives the ladle 1 to be further flipped. The worm and worm gear structure has self-locking property, that is, the worm 12 can drive the worm gear 11 to rotate, and the worm gear 11 cannot drive the worm 12 to rotate, improving the stability of the ladle 1.

[0028] Working principle of the utility model: When the hydraulic cylinder 6 is opened, it drives the piston rod 7 to move upward. The piston rod 7 drives the slider 8 to move in the chute 501, and at the same time drives the swing arm 5 to rotate and lift, so as to drive the ladle 1 to rotate together with the swing arm 5. When the hydraulic cylinder 6 flips the ladle 1 to a certain angle, then the worm rotary motor 13 is opened to drive the worm 12 to rotate. The worm 12 drives the worm wheel 11 to rotate, drives the rotating shaft to rotate, and thus drives the ladle 1 to further flip.

[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being “above” or “below” the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being “under”, “below” and “beneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0030] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A ladle turning device for steelmaking, comprising a ladle (1), wherein a fixing ring (15) is fixed to the outer wall of the ladle (1), characterized in that: A rotating shaft is fixed on the side of the fixed ring (15), and a rotating arm (5) is provided on the side of the rotating shaft. One end of the rotating arm (5) is rotatably connected to the base (2), and a support frame (3) is fixed on the top of the base (2). The other end of the rotating arm (5) is placed on the top of the support frame (3). A sliding groove (501) is provided at the bottom of the rotating arm (5), and a sliding block (8) is slidably connected inside the sliding groove (501). The bottom end of the sliding block (8) is rotatably connected to a piston rod (7), and the piston rod (7) is driven by a hydraulic cylinder (6), and the hydraulic cylinder (6) is fixed on the top of the base (2).

2. The ladle turning device for steelmaking according to claim 1, characterized in that: The rotating shaft is rotatably connected to the rotating arm (5), a worm wheel (11) is fixed on one side of the rotating shaft, a worm (12) is meshed on the surface of the worm wheel (11), the worm (12) is driven by a worm rotating motor (13), and bearing seats are connected to both ends of the worm (12), the bearing seats are fixed on the side of the rotating arm (5), and the helix lead angle of the worm (12) is smaller than the equivalent friction angle between the meshing teeth of the worm (12) and the worm wheel (11).

3. The ladle turning device for steelmaking according to claim 2, characterized in that: A limiting block (10) is fixed on the side of the other rotating shaft.

4. The ladle turning device for steelmaking according to claim 1, characterized in that: The slide groove (501) is configured as a T-shaped groove, and the top end of the slide block (8) is configured as a T-shape.

5. The ladle turning device for steelmaking according to claim 1, characterized in that: A supporting spring (9) is fixed between the side wall of the slide groove (501) and the side surface of the slide block (8).

6. The ladle turning device for steelmaking according to claim 1, characterized in that: The top of the support frame (3) is provided with a columnar groove (301), the bottom surface of the columnar groove (301) is fixed with an anti-slip rope (14), and the other end of the anti-slip rope (14) is fixed to the bottom of the rotating arm (5).

7. The ladle turning device for steelmaking according to claim 1, characterized in that: A crossbeam (4) is fixed to the side wall of the base (2), and the side surface of the base (2) is set as an inclined plane. The bottom of the base (2) is provided with an array of anti-slip grooves.

Images