A lifting and dumping mechanism for molten iron ladle with weighing

Abstract

The utility model discloses a ladle lifting and dumping mechanism with weighing. It comprises a ladle, a U-shaped frame, a lifting assembly and a dumping assembly, the ladle is installed at the opening of the U-shaped frame, a rotating shaft 1 is provided on the left and right sides of the ladle, a through hole 1 is provided on the left and right sides of the U-shaped frame, the rotating shaft 1 is rotatably installed in the through hole 1, the ladle is rotatably connected with the U-shaped frame through the cooperation of the rotating shaft 1 and the through hole 1, a gravity sensing device and an alarm device corresponding to the gravity sensing device are installed in the lifting assembly, a hook assembly is provided at the bottom end of the lifting assembly, the hook assembly is connected with the gravity sensing device, a hanging ring corresponding to the hook assembly is installed at the bottom end of the U-shaped frame, and the dumping assembly comprises a gear set and a manual wheel, the gear set is connected with the rotating shaft 1 on one side of the ladle, and the manual wheel is connected with the gear set. The beneficial effects of the utility model are: the amount of molten iron injection can be determined, and the hook assembly is easy to unhook and hook.

Description

Technical Field

[0001] The utility model relates to the technical field related to casting equipment, in particular to a ladle lifting and dumping mechanism with weighing. Background Art

[0002] In the current molten iron transfer system, molten iron flows out of the smelting furnace and is poured into the ladle. Because the molten iron filling port is high, it is impossible to clearly and intuitively observe the amount of molten iron added to the ladle. Currently, workers mainly operate the crane to raise the ladle and judge how much molten iron has been added based on experience. This is too dependent on the workers' human experience. If the operation is slightly improper, it may cause excessive molten iron to overflow and cause safety accidents. At the same time, the tilting adjustment of the ladle requires manual rotation and adjustment, and the high temperature near the ladle poses a safety hazard.

[0003] China Patent Authorization Announcement No.: CN 201646596U, Authorization Announcement Date: November 24, 2010, discloses a chain-type ladle lifting and dumping system, including: a lifting mechanism, an anti-falling mechanism, and a lifting and tipping mechanism, wherein the lifting mechanism includes a steel structure frame, and the steel structure frame is provided with a track for displacing the lifting and tipping mechanism in the vertical direction; it also includes a sprocket and a chain, and the sprocket and the chain are connected to the lifting and tipping mechanism and perform transmission in the vertical direction; the anti-falling mechanism includes a hook connected to the chain, and also includes a limit hole provided on the steel structure frame; the hook is configured so that when the chain breaks, the hook is configured to hook into the limit hole to prevent the ladle from accidentally falling; the lifting and tipping mechanism is configured to carry the ladle on the lifting mechanism for lifting and tipping. The shortcoming of this utility model is that during the process of injecting molten iron, the device cannot clearly determine the amount of molten iron already injected into the ladle due to the high position of the device, and can only judge the existence of safety hazards based on manual experience. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provides a ladle lifting and dumping mechanism with a weighing function capable of determining the amount of molten iron injected.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ladle lifting and dumping mechanism with weighing, comprising a ladle, a U-shaped frame, a lifting assembly and a dumping assembly, the ladle is installed at the opening of the U-shaped frame, a rotating shaft is provided on the left and right side surfaces of the ladle, a through hole is provided on the left and right side edges of the U-shaped frame, the rotating shaft is rotatably installed in the through hole, the ladle is rotatably connected to the U-shaped frame through the cooperation of the rotating shaft and the through hole, a gravity sensing device and an alarm device corresponding to the gravity sensing device are installed in the lifting assembly, a hook assembly is provided at the bottom end of the lifting assembly, the hook assembly is connected to the gravity sensing device, a hanging ring corresponding to the hook assembly is installed at the bottom end of the U-shaped frame, the dumping assembly is placed on one side of the bottom end of the U-shaped frame, the dumping assembly comprises a gear set and a manual wheel, the gear set is connected to the rotating shaft on one side of the ladle, and the manual wheel is connected to the gear set.

[0007] First, the top of the lifting device is connected to the lifting equipment in the prior art, and the hanging ring is hooked through the hook assembly on the lifting device. Then, the lifting device is lifted to drive the molten iron ladle to be lifted, and the gear group is rotated by the manual wheel, so that the gear group drives the rotating shaft to rotate, thereby driving the molten iron ladle to rotate, and the molten iron ladle is slightly tilted and then molten iron is injected into the molten iron ladle. The hook is connected to the gravity sensing device. When the molten iron is injected to a preset injection amount, the gravity sensing device will send a signal to the corresponding alarm device, so that the alarm device will sound an alarm to prompt the workers to stop injecting molten iron, and the gear group is rotated in the opposite direction through the manual wheel to return the molten iron ladle to the corresponding position through the lifting equipment in the prior art, and then the gear group is driven by the manual wheel to tilt the molten iron ladle and pour out the molten iron, thereby achieving the purpose of determining the amount of molten iron injected.

[0008] Preferably, the hook assembly includes a fixed rod, a movable rod and a cylinder. A U-shaped block is installed at the bottom end of the fixed rod. The opening of the U-shaped block faces one side of the fixed rod. The upper and lower ends of the opening of the U-shaped block are provided with through holes 2. The left and right sides of the through hole 2 are provided with guide grooves. The cylinder is installed on the bottom end surface of the lifting assembly. One end of the movable rod is connected to the cylinder. The other end of the movable rod can be detachably installed in through hole 2. Guide blocks are installed on the left and right sides of the movable rod. The movable rod is slidably connected to the U-shaped block through the cooperation of the guide blocks and the guide grooves. The hanging ring can be detachably installed in the area surrounded by the U-shaped block and the movable rod. The gravity sensor is installed between the pressing block and the mounting groove. The pressing block converts the gravity of the molten iron transmitted from the hook into pressure and transmits it downward to the pressure sensor, thereby achieving the purpose of accurately measuring the weight of the molten iron in the ladle.

[0009] Preferably, the lifting assembly includes a bearing platform, a mounting groove is provided in the middle of the top surface of the bearing platform, a through hole three is provided in the middle of the bottom end of the mounting groove, the through hole three is connected to the mounting groove, a pressure block is installed at the upper end of the fixing rod, the pressure block is installed in the mounting groove, the gravity sensing device is installed between the pressure block and the mounting groove, a plurality of connecting parts are provided at the edge of the top surface of the bearing platform, one end of the connecting part is connected to the top surface of the lifting assembly, and the cylinder is installed on the bottom surface of the bearing platform. First, the movable rod is driven by the cylinder to move up and down in the through hole, and the movable rod is slidably connected with the U-shaped block through the cooperation of the guide block and the guide groove, so that the closed state of the area surrounded by the U-shaped block and the movable rod can be determined by the movement of the movable rod, so as to achieve the purpose of facilitating the hook to be unhooked and hooked.

[0010] Preferably, the U-shaped frame includes a horizontal rod and two vertical rods, the two vertical rods are respectively installed at the left and right ends of the horizontal rod, a limit frame is installed on the bottom end of one of the vertical rods, the limit frame faces one side of the vertical rod, the cross-section of the limit frame is in the shape of a quarter arc, a sliding channel is provided in the limit frame, a positioning rod is installed at the bottom end of the iron ladle, and one end of the positioning rod is placed in the sliding channel. The positioning rod at the bottom end of the iron ladle is placed in the sliding channel, and when the iron ladle pours molten iron, the positioning rod will rotate in a circle with the rotating shaft as the axis, and because the limit frame is in the shape of a quarter arc, the iron ladle can rotate up to ninety degrees under the action of the positioning rod and the limit frame, avoiding excessive rotation of the iron ladle and causing dangerous accidents in the production process.

[0011] Preferably, the gear set includes a driving gear and a driven gear, the driving gear and the driven gear are meshed with each other, a through hole 4 is provided on the outer side of the vertical rod on which the limit frame is installed, a round rod is installed on the driving gear, one end of the round rod is connected with the manual wheel, the other end of the round rod passes through the driving gear and is placed in the through hole 4, an annular groove is provided on the inner wall of the through hole 4, the other end of the round rod is provided with an annular flange, the round rod is rotatably connected with the vertical rod through the cooperation of the annular groove and the annular flange, one end face of the driving gear is fitted with the side of the vertical rod, the rotating shaft passes through the U-shaped frame and is connected with the driven gear, one end face of the driven gear is fitted with the side of the vertical rod, the round rod is placed above the rotating shaft, and the diameter of the driving gear is smaller than the diameter of the driven gear. The driving gear and the driven gear are meshed with each other, the manual wheel rotates to drive the driving gear to rotate, and then the driving gear drives the driven gear to rotate, the diameter of the driving gear is smaller than the diameter of the driven gear, so that the manual wheel is more convenient to rotate the ladle by rotating the driven gear and the rotating shaft.

[0012] Preferably, a slot is provided on one end face of the positioning rod placed in the sliding channel, a rotating rod is provided in the slot, one end of the rotating rod is rotatably connected to the slot, a moving gear is installed on the other end of the rotating rod, a rack 1 is installed on one inner wall of the sliding channel, the moving gear and the rack 1 are meshed, and the diameter of the moving gear is larger than the diameter of the positioning rod. The meshing of the moving gear and the rack 1 makes the rotating rod move more stably in the sliding channel 1.

[0013] Preferably, a sliding groove is provided on the inner wall of the other side of the sliding channel, and the sliding groove corresponds to rack one up and down, and the sliding groove passes through the limit frame at one end near the vertical rod, and a rack two is provided in the sliding groove, and the end of the rack two close to the vertical rod is placed outside the limit frame, and tooth grooves are provided on the upper and lower side surfaces of the rack two, and the tooth groove on the lower side of the rack two is meshed with the moving gear, and guide strips are installed on the left and right side surfaces of the rack two, and guide grooves are installed on the left and right sides of the sliding groove, and the rack two is slidably connected with the sliding groove through the cooperation of the guide groove and the guide strip, and a motor seat is installed on the outer side surface of the vertical rod, and a rotating motor is installed on the motor seat, and a rotating motor is provided on the rotating motor, and a rotating rod is provided on the rotating motor, and a fixed gear is installed on one end of the rotating rod, and the fixed gear is meshed with the tooth groove on the upper side of the rack two. The rotating motor drives the rotating rod to rotate, and the rotating rod drives the fixed gear to rotate. Since the fixed gear is meshed with the tooth groove on the upper side of rack 2, the rotation of the fixed gear drives rack 2 to move, and the tooth groove on the lower side of rack 2 is meshed with the moving gear. Rack 1 is meshed with the moving gear and rack 1 is fixedly installed in the limit frame. Therefore, the movement of rack 2 will drive the moving gear to rotate and move relatively along rack 1, thereby driving the rotation and dumping of the molten iron ladle, thereby achieving the purpose of automatic dumping of the molten iron ladle.

[0014] The beneficial effects of the utility model are: being able to determine the amount of molten iron injected; accurately measuring the weight of the molten iron in the ladle; the hook being easy to unhook and hook up; the limiting frame preventing the ladle from rotating excessively; facilitating the rotation of the ladle; making it easier for the rotating rod to rotate in the sliding channel by meshing the moving gear and the rack; and the ladle being automatically dumped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the hook;

[0017] Figure 3 It is an exploded view of the load-bearing platform and the alarm device;

[0018] Figure 4 It is a schematic diagram of the structure of the junction of the gear set and the vertical rod;

[0019] Figure 5 It is a longitudinal section of the junction of the gear set and the vertical rod;

[0020] Figure 6 It is a structural schematic diagram of the joint of the moving gear, rack one and rack two;

[0021] Figure 7 It is a structural schematic diagram of the junction of the fixed gear and the rack.

[0022] In the figure: 1. Ladle, 2. U-shaped frame, 3. Lifting assembly, 4. Tipping assembly, 5. Rotating shaft, 6. Gravity sensing device, 7. Alarm device, 8. Hook assembly, 9. Hanging ring, 10. Gear set, 11. Manual wheel, 12. Fixed rod, 13. Movable rod, 14. Cylinder, 15. U-shaped block, 16. Through hole 2, 17. Guide groove, 18. Guide block, 19. Bearing platform, 20. Mounting groove, 21. Through hole 3, 22. Pressing block, 23. Connecting piece, 24. Horizontal rod, 25. Vertical rod, 26. Limiting frame, 27. Sliding channel, 28. Positioning rod, 29. Driving gear, 30. Driven gear, 31. Round rod, 32. Annular slot, 33. Annular flange, 34. Slot, 35. Rotating rod, 36. Moving gear, 37. Rack 1, 38. Rack 2, 39. Tooth groove, 40. Guide bar, 41. Guide groove, 42. Motor seat, 43. Rotating motor, 44. Fixed gear, 45. Rotating rod. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 and Figure 3 In the described embodiment, it includes a molten iron ladle 1, a U-shaped frame 2, a lifting component 3 and a dumping component 4, the molten iron ladle 1 is installed at the opening of the U-shaped frame 2, a rotating shaft 5 is provided on the left and right side surfaces of the molten iron ladle 1, a through hole 1 is provided on the left and right side edges of the U-shaped frame 2, the rotating shaft 5 is rotatably installed in the through hole 1, the molten iron ladle 1 is rotatably connected to the U-shaped frame 2 through the cooperation of the rotating shaft 5 and the through hole 1, a gravity sensing device 6 and an alarm device 7 corresponding to the gravity sensing device 6 are installed in the lifting component 3, a hook component 8 is provided at the bottom end of the lifting component 3, the hook component 8 is connected to the gravity sensing device 6, and a hanging ring 9 corresponding to the hook component 8 is installed at the bottom end of the U-shaped frame 2, the dumping component 4 is placed on one side of the bottom end of the U-shaped frame 2, the dumping component 4 includes a gear group 10 and a manual wheel 11, the gear group 10 is connected to the rotating shaft 5 on one side of the molten iron ladle 1, and the manual wheel 11 is connected to the gear group 10.

[0025] like Figure 1 and Figure 2 As shown, the hook assembly 8 includes a fixed rod 12, a movable rod 13 and a cylinder 14. A U-shaped block 15 is installed at the bottom end of the fixed rod 12, and the opening of the U-shaped block 15 faces one side of the fixed rod 12. Through holes 16 are provided at both upper and lower ends of the opening of the U-shaped block 15, and guide grooves 17 are provided on both left and right side surfaces of the through hole 16. The cylinder 14 is installed on the bottom end surface of the lifting assembly 3, one end of the movable rod 13 is connected to the cylinder 14, and the other end of the movable rod 13 is detachably installed in the through hole 16. Guide blocks 18 are installed on the left and right side surfaces of the movable rod 13. The movable rod 13 is slidably connected to the U-shaped block 15 through the cooperation of the guide blocks 18 and the guide grooves 17, and the hanging ring 9 is detachably installed in the area surrounded by the U-shaped block 15 and the movable rod 13.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the lifting assembly 3 includes a bearing platform 19, a mounting groove 20 is provided in the middle of the top surface of the bearing platform 19, a through hole three 21 is provided in the middle of the bottom end of the mounting groove 20, and the through hole three 21 is connected to the mounting groove 20. A pressure block 22 is installed at the upper end of the fixing rod 12, and the pressure block 22 is installed in the mounting groove 20. The gravity sensing device 6 is installed between the pressure block 22 and the mounting groove 20. A plurality of connecting members 23 are provided at the edge of the top surface of the bearing platform 19, and one end of the connecting member 23 is connected to the top surface of the lifting assembly 3, and the cylinder 14 is installed on the bottom end surface of the bearing platform 19.

[0027] like Figure 1 As shown, the U-shaped frame 2 includes a horizontal rod 24 and two vertical rods 25. The two vertical rods 25 are respectively installed at the left and right ends of the horizontal rod 24. A limit frame 26 is installed on the bottom end of one of the vertical rods 25. The limit frame 26 faces one side of the vertical rod 25. The cross-sectional shape of the limit frame 26 is a quarter arc. A sliding channel 27 is provided in the limit frame 26. A positioning rod 28 is installed at the bottom end of the ladle 1, and one end of the positioning rod 28 is placed in the sliding channel 27.

[0028] like Figure 4 and Figure 5As shown, the gear set 10 includes a driving gear 29 and a driven gear 30, which mesh with each other. A through hole 4 is provided on the outer side surface of the vertical rod 25 on which the limit frame 26 is installed. A round rod 31 is installed on the driving gear 29, one end of the round rod 31 is connected to the manual wheel 11, and the other end of the round rod 31 passes through the driving gear 29 and is placed in the through hole 4. An annular groove 32 is provided on the inner wall of the through hole 4, and an annular flange 33 is provided on the other end of the round rod 31. The round rod 31 is rotatably connected to the vertical rod 25 through the cooperation of the annular groove 32 and the annular flange 33. One end face of the driving gear 29 is fitted with the side face of the vertical rod 25, and the rotating shaft 5 is connected to the driven gear 30 after passing through the U-shaped frame 2. One end face of the driven gear 30 is fitted with the side face of the vertical rod 25, and the round rod 31 is placed above the rotating shaft 5. The diameter of the driving gear 29 is smaller than the diameter of the driven gear 30.

[0029] like Figure 6 As shown, a slot 34 is provided on one side surface of the positioning rod 28 placed in the sliding channel 27, a rotating rod 35 is provided in the slot 34, one end of the rotating rod 35 is rotatably connected to the slot 34, and a moving gear 36 is installed on the other end of the rotating rod 35, and a rack 37 is installed on the inner wall of one side of the sliding channel 27, the moving gear 36 is meshed with the rack 37, and the diameter of the moving gear 36 is larger than the diameter of the positioning rod 28.

[0030] like Figure 6 and Figure 7 As shown, a sliding groove is provided on the inner wall of the other side of the sliding channel 27, and the sliding groove corresponds to the rack 1 37 up and down. The end of the sliding groove close to the vertical rod 25 passes through the limit frame 26, and a rack 2 38 is provided in the sliding groove. The end of the rack 2 38 close to the vertical rod 25 is placed outside the limit frame 26. Tooth grooves 39 are provided on the upper and lower side surfaces of the rack 2 38, and the tooth groove 39 on the lower side of the rack 2 38 meshes with the moving gear 36. Guide bars 40 are installed on the left and right side surfaces of the rack 2 38, and guide grooves 41 are provided on the left and right sides of the sliding groove. The rack 2 38 is slidably connected to the sliding groove through the cooperation of the guide grooves 41 and the guide bars 40. A motor seat 42 is installed on the outer side surface of the vertical rod 25, and a rotating motor 43 is installed on the motor seat 42. A rotating rod 45 is provided on the rotating motor 43, and a fixed gear 44 is installed on one end of the rotating rod 45. The fixed gear 44 meshes with the tooth groove 39 on the upper side of the rack 2 38.

[0031] When in use, first connect the connecting piece 23 on the upper end surface of the bearing platform 19 in the lifting assembly 3 to the factory crane in the prior art, lift the lifting assembly 3 by the factory crane, then retract the movable rod 13 by the cylinder 14, align the opening of the U-shaped block 15 with the hanging ring 9, move the lifting assembly 3 to install the hanging ring 9 into the U-shaped block 15, then push the movable rod 13 out by the cylinder 14, so that the U-shaped block 15 and the movable rod 13 form a closed frame, lift the lifting assembly 3 by the factory crane, and the molten iron ladle 1 is synchronously lifted by the cooperation of the hook assembly 8 and the hanging ring 9. After the molten iron ladle 1 is moved to the corresponding refining furnace position, the manual wheel 11 is used to rotate the driving gear 29, and the main The driven gear 29 drives the driven gear 30 to rotate, and the driven gear 30 drives the rotating shaft 5 to rotate so that the molten iron ladle 1 rotates. The molten iron ladle 1 is slightly tilted, and molten iron is injected into the molten iron ladle 1. As the molten iron ladle 1 is continuously injected, the hook assembly 8 transmits the gravity of the molten iron ladle 1 to the gravity sensing device 6 installed between the pressing block 22 and the mounting groove 20 through the pressing block 22. When the molten iron in the molten iron ladle 1 is injected to the preset alarm amount, the gravity sensing device 6 will transmit a signal to the alarm device 7, and the alarm device 7 will sound an alarm. Both the gravity sensing device 6 and the alarm device 7 are prior art. At this time, the manual wheel 11 is rotated in the opposite direction, and the driving gear 29 is rotated by the manual wheel 11. The driving gear 29 drives the driven gear 29 to rotate. The driving gear 30 rotates, and the driven gear 30 drives the rotating shaft 5 to rotate, so that the molten iron ladle 1 is reset; when the molten iron ladle 1 is transported to the unloading position, the driving gear 29 is rotated by the manual wheel 11, and the driving gear 29 drives the driven gear 30 to rotate, and the driven gear 30 drives the rotating shaft 5 to rotate, so that the molten iron ladle 1 rotates. When the molten iron ladle 1 rotates, the positioning rod 28 at the bottom of the molten iron ladle 1 will rotate in the sliding channel 27 at the same time. When the positioning rod 28 rotates from one side edge of the sliding channel 27 to the other side edge of the sliding channel 27, the molten iron ladle 1 is just in a horizontal state, that is, the loading and unloading operation of the molten iron is completed; in the steps where the manual wheel 11 is required, a rotating motor can be used as an alternative 43 drives the rotating rod 45 to rotate, and the rotating rod 45 drives the fixed gear 44 to rotate. Since the fixed gear 44 is meshed with the tooth groove 34 on the upper side of the rack 2 38, the rotation of the fixed gear 44 drives the rack 2 38 to move, and the tooth groove 34 on the lower side of the rack 2 38 is meshed with the moving gear 36. The rack 1 37 is meshed with the moving gear 36 and the rack 1 37 is fixedly installed in the limit frame 26, so that the movement of the rack 2 38 will drive the moving gear 36 to rotate and move relatively along the rack 1 37. The moving gear 36 drives the rotating rod 35 to move in the sliding channel 27, and the rotating rod 35 drives the positioning rod 28 to move, and finally drives the molten iron ladle 1 to rotate, that is, the automatic tipping and rotation of the molten iron ladle 1 is realized.

Claims

1. A ladle lifting and dumping mechanism with weighing, characterized in that: The invention comprises a ladle (1), a U-shaped frame (2), a lifting assembly (3) and a dumping assembly (4), wherein the ladle (1) is mounted at the opening of the U-shaped frame (2), a rotating shaft (5) is provided on the left and right sides of the ladle (1), a through hole (1) is provided on the left and right sides of the U-shaped frame (2), the rotating shaft (5) is rotatably mounted in the through hole (1), the ladle (1) is rotatably connected to the U-shaped frame (2) through the cooperation of the rotating shaft (5) and the through hole (1), and a gravity sensing device (6) and a tilting assembly (4) are installed in the lifting assembly (3). The lifting assembly (3) is provided with a hook assembly (8) at the bottom end, the hook assembly (8) is connected to the gravity sensing device (6), the bottom end of the U-shaped frame (2) is provided with a hanging ring (9) corresponding to the hook assembly (8), the tipping assembly (4) is placed on one side of the bottom end of the U-shaped frame (2), the tipping assembly (4) comprises a gear set (10) and a manual wheel (11), the gear set (10) is connected to a rotating shaft (5) on one side of the ladle (1), and the manual wheel (11) is connected to the gear set (10).

2. The ladle lifting and dumping mechanism with weighing according to claim 1 is characterized in that: The hook assembly (8) comprises a fixed rod (12), a movable rod (13) and a cylinder (14); a U-shaped block (15) is installed at the bottom end of the fixed rod (12); an opening of the U-shaped block (15) faces one side of the fixed rod (12); through holes (16) are provided at both upper and lower ends of the opening of the U-shaped block (15); guide grooves (17) are provided on both left and right side surfaces of the through hole (16); the cylinder (14) is installed on the bottom end surface of the lifting assembly (3); one end of the movable rod (13) is connected to the cylinder (14); the other end of the movable rod (13) is detachably installed in the through hole (16); guide blocks (18) are installed on both left and right side surfaces of the movable rod (13); the movable rod (13) is slidably connected to the U-shaped block (15) through the cooperation of the guide blocks (18) and the guide grooves (17); the hanging ring (9) is detachably installed in the area surrounded by the U-shaped block (15) and the movable rod (13).

3. The ladle lifting and dumping mechanism with weighing according to claim 2 is characterized in that: The lifting assembly (3) comprises a bearing platform (19), a mounting groove (20) is provided in the middle of the top end surface of the bearing platform (19), a through hole (21) is provided in the middle of the bottom end of the mounting groove (20), the through hole (21) is connected to the mounting groove (20), a pressing block (22) is installed at the upper end of the fixing rod (12), the pressing block (22) is installed in the mounting groove (20), the gravity sensing device (6) is installed between the pressing block (22) and the mounting groove (20), a plurality of connecting members (23) are provided at the edge of the top end surface of the bearing platform (19), one end of the connecting member (23) is connected to the top end surface of the lifting assembly (3), and the cylinder (14) is installed on the bottom end surface of the bearing platform (19).

4. The ladle lifting and dumping mechanism with weighing according to claim 1 is characterized in that: The U-shaped frame (2) comprises a horizontal rod (24) and two vertical rods (25), the two vertical rods (25) being respectively mounted on the left and right ends of the horizontal rod (24), a limit frame (26) being mounted on the bottom end of one of the vertical rods (25), the limit frame (26) facing one side of the vertical rod (25), the cross-section of the limit frame (26) being in the shape of a quarter circular arc, a sliding channel (27) being arranged in the limit frame (26), a positioning rod (28) being mounted on the bottom end of the ladle (1), one end of the positioning rod (28) being placed in the sliding channel (27).

5. The ladle lifting and dumping mechanism with weighing according to claim 4 is characterized in that: The gear set (10) comprises a driving gear (29) and a driven gear (30), the driving gear (29) and the driven gear (30) being meshed with each other, a through hole (4) being provided on the outer side surface of a vertical rod (25) on which a limit frame (26) is mounted, a round rod (31) being mounted on the driving gear (29), one end of the round rod (31) being connected to a manual wheel (11), the other end of the round rod (31) passing through the driving gear (29) and then being placed in the through hole (4), an annular groove (32) being provided on the inner wall of the through hole (4), the round rod (31) The other end is provided with an annular flange (33); the round rod (31) is rotatably connected to the vertical rod (25) through the cooperation of the annular groove (32) and the annular flange (33); one end face of the driving gear (29) is in contact with the side face of the vertical rod (25); the rotating shaft (5) passes through the U-shaped frame (2) and is connected to the driven gear (30); one end face of the driven gear (30) is in contact with the side face of the vertical rod (25); the round rod (31) is placed above the rotating shaft (5); and the diameter of the driving gear (29) is smaller than the diameter of the driven gear (30).

6. The ladle lifting and dumping mechanism with weighing according to claim 4 is characterized in that: A slot (34) is provided on one end surface of the positioning rod (28) placed in the sliding channel (27), a rotating rod (35) is provided in the slot (34), one end of the rotating rod (35) is rotatably connected to the slot (34), a moving gear (36) is installed on the other end of the rotating rod (35), a rack (37) is installed on one inner wall of the sliding channel (27), the moving gear (36) and the rack (37) are meshed, and the diameter of the moving gear (36) is larger than the diameter of the positioning rod (28).

7. The ladle lifting and dumping mechanism with weighing according to claim 6 is characterized in that: A sliding groove is provided on the inner wall of the other side of the sliding channel (27), and the sliding groove corresponds to the rack 1 (37) in the upper and lower parts. The end of the sliding groove close to the vertical rod (25) passes through the limit frame (26), and a rack 2 (38) is provided in the sliding groove. The end of the rack 2 (38) close to the vertical rod (25) is placed outside the limit frame (26). Tooth grooves (39) are provided on both upper and lower side surfaces of the rack 2 (38). The tooth grooves (39) on the lower side of the rack 2 (38) mesh with the moving gear (36). The left and right side surfaces of the rack 2 (38) are A guide bar (40) is installed, and guide grooves (41) are provided on the left and right sides of the sliding groove. The second rack (38) is slidably connected to the sliding groove through the cooperation of the guide grooves (41) and the guide bar (40). A motor seat (42) is installed on the outer side of the vertical rod (25), and a rotating motor (43) is installed on the motor seat (42). The rotating motor (43) is provided with a rotating rod (45), and a fixed gear (44) is installed on one end of the rotating rod (45), and the fixed gear (44) is meshed with a tooth groove (39) on the upper side of the second rack (38).

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