Ladle crane

Abstract

The ladle crane comprises two end beams, two main beams are installed between the two end beams, a crane carriage runs on the main beams, a winding drum mechanism is installed at the top of the crane carriage, a slewing bearing is installed at the bottom of the crane carriage, and a fixing frame is arranged at the bottom of the slewing bearing. A driving plate is connected to the lower portion of the winding drum mechanism through a steel wire rope, mounting plates are symmetrically arranged on the two sides of the bottom of the driving plate, speed reducers are arranged on the outer sides of the mounting plates, a double-output-shaft driving motor is mounted at the top of the driving plate, the output ends of the speed reducers penetrate through the mounting plates and are fixedly connected with a tray, and a front supporting groove and a rear supporting groove are formed in the tray; a steel ladle is placed between the two trays, a heat preservation plate is arranged between the driving plate and the steel ladle, a plurality of connecting chains are arranged at the top of the heat preservation plate, and the tops of the connecting chains penetrate through the driving plate to be fixedly connected to the fixing frame. The problems that in the prior art, heat is prone to loss in the steel ladle moving process, and stability is insufficient when a steel ladle is poured are solved.

Description

Technical Field

[0001] The invention relates to the technical field of lifting machinery and equipment, in particular to a casting crane. Background Art

[0002] Casting cranes are used to lift and dump ladles in foundries to complete the casting process. In the existing molten metal casting process, most of the gantry hook cranes are used, and the ladle is transported and dumped through the cooperation of the main and auxiliary hooks. However, during the lifting of the ladle, due to the open structure of the ladle, the heat of the ladle is easily lost during the long-distance movement, and the shaking of the ladle may cause molten steel to splash out, which is very dangerous. When the main and auxiliary hooks cooperate to dump the ladle, the center of gravity of the ladle changes rapidly. In order to ensure the stability of the dumping, the action requirements of the auxiliary hook are high, and the operation is difficult. Summary of the invention

[0003] The purpose of the present invention is to provide a casting crane, which is used to solve the problems in the prior art that heat is easily lost during the movement of the ladle and the ladle is not stable enough when it is tilted.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a casting crane, comprising two end beams, two main beams are installed between the two end beams, a lifting trolley is run on the main beam, a winding drum mechanism is installed on the top of the lifting trolley, a slewing bearing is installed on the bottom of the lifting trolley, and a fixed frame is arranged at the bottom of the slewing bearing; a driving plate is connected to the bottom of the winding drum mechanism through a steel wire rope, mounting plates are symmetrically arranged on both sides of the bottom of the driving plate, a reducer is arranged on the outer side of the mounting plate, a driving motor with double output shafts is installed on the top of the driving plate, a transmission rod is fixedly connected to the output end of the driving motor, a transmission gear is arranged on the transmission rod, the transmission gear is connected to the input end of the reducer through a transmission chain, the output end of the reducer passes through the mounting plate and is fixedly connected to a tray, a front bracket and a rear bracket are opened on the tray, and the height of the front bracket is higher than that of the rear bracket; the ladle is placed between the two trays, an insulation plate is arranged between the driving plate and the ladle, a plurality of connecting chains are arranged on the top of the insulation plate, and the top of the connecting chain passes through the driving plate and is fixedly connected to the fixed frame.

[0005] Optionally, the fixing frame includes four fixing rods arranged in a rectangular shape, a guide frame matching the fixing frame is provided on the top of the driving plate, a guide wheel is installed on the edge of the guide frame, and the guide wheel rolls against the inner side of the fixing rods.

[0006] Optionally, a plurality of reinforcing rods are fixedly connected to the outer sides of the fixing rod and the guide frame.

[0007] Optionally, four connecting chains are provided, and the four connecting chains are arranged in a rectangular shape on the top of the insulation board, and the tops of the four connecting chains are respectively fixedly connected to four fixing rods.

[0008] Optionally, a pouring trough is provided at the front end of the ladle, and a baffle matching the pouring trough is provided at the front end of the insulation plate.

[0009] Optionally, a limiting block matching the ladle opening is provided at the bottom of the insulation plate.

[0010] Optionally, the end of the insulation board is fixedly connected to a limit plate.

[0011] The casting crane of the present invention has the following advantages: (1) After the ladle is placed on the tray, the driving plate is driven up by the drum mechanism, and the tray will also rise with the ladle until the ladle lifts up the insulation board. The insulation board covers the top of the ladle, which can effectively reduce the loss of molten steel temperature and prevent molten steel from splashing out of the ladle during the lifting process, avoiding waste of resources and improving production safety.

[0012] (2) Two support rods, one high and one low, are provided on both sides of the ladle. The two support rods are placed in two brackets respectively. When the tray rotates, the front bracket descends and the rear bracket rises, so that the center of gravity of the ladle changes smoothly, thereby improving the stability during tipping.

[0013] (3) The guide frame enables the driving plate to move stably in the vertical direction to avoid shaking, thereby improving the stability of the ladle lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is the front view of the present invention.

[0016] Figure 3 It is a schematic diagram of the connection between the lifting trolley and the fixed frame.

[0017] Figure 4 It is a connection diagram between the driver board and the mounting board.

[0018] Figure 5 It is a connection diagram of the fixed frame and the guide frame.

[0019] Figure 6 It is a schematic diagram of the structure of the ladle.

[0020] Figure 7 It is a structural diagram of the insulation board.

[0021] Figure 8 It is a schematic diagram of ladle dumping.

[0022] Figure numerals: 1. end beam; 2. main beam; 3. lifting trolley; 4. winding drum mechanism; 5. slewing bearing; 6. fixed frame; 7. driving plate; 8. fixing rod; 9. guide frame; 10. guide wheel; 11. reinforcing rod; 12. mounting plate; 13. reducer; 14. driving motor; 15. transmission rod; 16. transmission gear; 17. transmission chain; 18. tray; 19. front bracket; 20. rear bracket; 21. ladle; 23. front support rod; 24. rear support rod; 25. insulation board; 26. connecting chain; 27. dumping chute; 28. baffle; 29. ​​limit block; 30. limit plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like Figure 1-Figure 8 As shown, a casting crane comprises two end beams 1, two main beams 2 are installed between the two end beams 1, a lifting trolley 3 is operated on the main beam 2, a reel mechanism 4 is installed on the top of the lifting trolley 3, a slewing bearing 5 is installed on the bottom of the lifting trolley 3, a fixing frame 6 is arranged at the bottom of the slewing bearing 5, and a driving plate 7 is connected to the bottom of the reel mechanism 4 through a wire rope. The fixing frame 6 comprises four fixing rods 8 arranged in a rectangular shape, a guide frame 9 matching the fixing frame 6 is arranged on the top of the driving plate 7, a guide wheel 10 is installed on the edge of the guide frame 9, and the guide wheel 10 is fitted on the inner side of the fixing rod 8 and rolls, and the guide frame 9 can stably move along the fixing rod 8 in the vertical direction, thereby improving the stability of the driving plate 7 when it is lifted and lowered, and due to the limitation of the guide frame 9, the driving plate 7 will not shake in the horizontal direction, so it is more stable when lifting the ladle 21, and the ladle 21 will not shake and cause the molten steel to splash out. A plurality of reinforcing rods 11 are fixedly connected to the outer sides of the fixing rod 8 and the guide frame 9 , so as to improve the strength of the fixing frame 6 and the guide frame 9 .

[0025] Mounting plates 12 are symmetrically arranged on both sides of the bottom of the driving plate 7, a reducer 13 is arranged on the outer side of the mounting plate 12, a driving motor 14 with double output shafts is installed on the top of the driving plate 7, the output end of the driving motor 14 is fixedly connected to a transmission rod 15, the transmission rod 15 is rotatably connected to the top of the driving plate 7, a transmission gear 16 is arranged on the transmission rod 15, the transmission gear 16 is connected to the input end of the reducer 13 through a transmission chain 17, the output end of the reducer 13 passes through the mounting plate 12 and is fixedly connected to a tray 18, and the driving motor 14 can drive the two trays 18 to rotate synchronously. The tray 18 is provided with a front bracket 19 and a rear bracket 20, the height of the front bracket 19 is higher than the height of the rear bracket 20, the front side of the side of the ladle 21 is provided with a front support rod 23 matching the front bracket 19, the rear side of the side of the ladle 21 is provided with a rear support rod 24 matching the rear bracket 20, the height of the front support rod 23 is higher than the height of the rear support rod 24, the ladle 21 is placed between the two trays 18, and the rotation of the tray 18 can drive the ladle 21 to flip, thereby realizing the pouring of molten steel. When the ladle 21 flips, the front bracket 19 drives the front support rod 23 to descend, and the rear bracket 20 drives the rear support rod 24 to rise, so that when the ladle 21 is dumped, the center of gravity changes smoothly, and there will be no fluctuation of the center of gravity, thereby improving the stability of the dumping process.

[0026] An insulation plate 25 is arranged between the driving plate 7 and the ladle 21. Four connecting chains 26 arranged in a rectangular shape are arranged on the top of the insulation plate 25. The tops of the four connecting chains 26 pass through the insulation plate 25 and are respectively fixedly connected to the bottoms of the four fixing rods 8. The position of the insulation plate 25 remains unchanged. A pouring trough 27 is arranged at the front end of the ladle 21, so that the molten steel can flow out evenly and stably, and the pouring process is easier to control. The shape of the insulation plate 25 matches the opening shape of the ladle 21. A baffle 28 matching the pouring trough 27 is arranged at the front end of the insulation plate 25. The length of the baffle 28 is slightly smaller than the length of the pouring trough 27, providing an opening for the pouring of the molten steel. A limit block 29 matching the ladle 21 is arranged at the bottom of the insulation plate 25. When the insulation plate 25 covers the top of the ladle 21, the limit block 29 can be stuck in the ladle 21 to limit the shaking of the insulation plate 25 and ensure the insulation effect of the insulation plate 25. The end of the insulation plate 25 is fixedly connected to the limit plate 30. When the ladle 21 is dumped, the limit plate 30 is stuck at the end of the ladle 21 to prevent the insulation plate 25 from slipping when the molten steel is dumped.

[0027] Through the end beam 1 and the lifting trolley 3, the driving plate 7 can be driven to move in the horizontal direction. After moving to the position of the ladle 21, the height of the tray 18 is adjusted through the reel mechanism 4, and the angle of the tray 18 is adjusted by the slewing bearing 5, so that the two brackets cooperate with the support rods on both sides of the ladle 21, and then the reel mechanism 4 drives the ladle 21 to rise until the insulation plate 25 covers the top of the ladle 21. Through the movement of the end beam 1 and the lifting trolley 3, the ladle 21 is hoisted to the casting position. Due to the barrier of the insulation plate 25 during the moving process, the molten steel will not splash out and the heat will not be lost excessively. Finally, the driving motor 14 drives the tray 18 to rotate, realize the tipping of the ladle 21, and complete the pouring of the molten steel. During the pouring process, the height difference between the two fulcrums of the ladle 21 gradually decreases, so that the center of gravity of the ladle 21 changes stably, which is conducive to improving the uniformity of casting.

[0028] The embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

Claims

1. A casting crane, comprising two end beams, two main beams are installed between the two end beams, a lifting trolley is running on the main beams, and a winding drum mechanism is installed on the top of the lifting trolley, characterized in that: A slewing bearing is installed at the bottom of the lifting trolley, and a fixed frame is arranged at the bottom of the slewing bearing; a driving plate is connected to the bottom of the drum mechanism through a steel wire rope, mounting plates are symmetrically arranged on both sides of the bottom of the driving plate, a reducer is arranged on the outer side of the mounting plate, a driving motor with double output shafts is installed on the top of the driving plate, a transmission rod is fixedly connected to the output end of the driving motor, a transmission gear is arranged on the transmission rod, the transmission gear and the input end of the reducer are connected through a transmission chain, the output end of the reducer passes through the mounting plate and is fixedly connected to a pallet, a front bracket and a rear bracket are provided on the pallet, and the height of the front bracket is higher than that of the rear bracket; the ladle is placed between the two pallets, an insulation plate is arranged between the driving plate and the ladle, a plurality of connecting chains are arranged on the top of the insulation plate, and the top of the connecting chain passes through the driving plate and is fixedly connected to the fixed frame.

2. The casting crane according to claim 1, characterized in that: The fixing frame includes four fixing rods arranged in a rectangular shape. A guide frame matching the fixing frame is arranged on the top of the driving plate. A guide wheel is installed on the edge of the guide frame. The guide wheel is fitted on the inner side of the fixing rod and rolls.

3. The casting crane according to claim 2, characterized in that: A plurality of reinforcing rods are fixedly connected to the outer sides of the fixing rod and the guide frame.

4. The casting crane according to claim 2, characterized in that: Four connecting chains are provided, and the four connecting chains are arranged in a rectangular shape on the top of the insulation board, and the tops of the four connecting chains are respectively fixedly connected to four fixing rods.

5. The casting crane according to claim 1, characterized in that: The front end of the ladle is provided with a pouring trough, and the front end of the insulation plate is provided with a baffle matching the pouring trough.

6. The casting crane according to claim 5, characterized in that: A limiting block matching the opening of the ladle is arranged at the bottom of the insulation plate.

7. The casting crane according to claim 1, characterized in that: The end of the insulation board is fixedly connected with a limit plate.

Images