A casting device and casting method for a wind turbine gearbox flange casting

Abstract

The present invention relates to the field of metal casting technology, and in particular to a pouring device and method for a wind turbine gearbox flange casting, comprising: a gantry, a base, a sand pit, and a controller, wherein the base is arranged at the bottom of the gantry, the sand pit is arranged in the middle of the base, the controller is arranged on the right side of the gantry, a pouring mechanism is arranged at the top of the gantry and is electrically connected to the controller, and a feeding mechanism is arranged at the top of the base and is electrically connected to the controller. The present invention can automatically replace the steel ladle without manual intervention, and the steel ladle is fixed throughout the entire process, effectively preventing the steel ladle from falling and causing injury, effectively improving safety, and can drive the mold to rotate, thereby increasing the fluidity of the molten metal in the mold. It can automatically load and unload materials, realize fully automatic pouring, and meet the needs of automated production.

Description

Technical Field

[0001] The present invention relates to the technical field of metal casting, in particular to a pouring device and a pouring method for a flange casting of a wind power gearbox. Background Art

[0002] In the modern casting production process, in order to improve the efficiency of casting and meet the requirements of modern production, most casting processes currently use automated molding lines for production. In the production process of the automated molding line, the high-temperature molten metal is melted in the melting furnace and the molten metal is loaded into a ladle. The molten metal is transported to the pouring equipment, and the pouring equipment is required to pour the molten metal into the mold for pouring. The existing pouring device needs to clean the residual steel slag in the ladle and replace it with a new ladle after pouring. This process takes up the time of the pouring process and slows down the pouring progress. The pouring speed is very slow and the pouring efficiency is very low, which may lead to problems such as the molten metal in the subsequent ladle cooling too quickly. In addition, the existing technology requires manual fixing of the ladle, and operational errors can easily cause the ladle to fall and cause personal injury. In addition, when pouring flange castings, since multiple cores are required to form the flange shape, the low fluidity of the molten metal may cause defects near the core, which is difficult to meet the needs of modern production. Summary of the Invention

[0003] The purpose of the present invention is to provide a casting device for a flange casting of a wind turbine gearbox, so as to solve the problems in the prior art that poor fluidity of molten steel leads to defects near the core, residual steel slag needs to be dumped after one pouring, and manual fixation may cause the steel ladle to fall and cause injury.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pouring device for a wind turbine gearbox flange casting, comprising: a gantry, a base, a sand pit and a controller, wherein the base is arranged at the bottom of the gantry, the sand pit is arranged in the middle position of the base, and the controller is arranged on the right side of the gantry. It is characterized in that the pouring device for the wind turbine gearbox flange casting also includes: a pouring mechanism, a feeding mechanism and a steel ladle; the pouring mechanism is arranged at the top of the gantry and is electrically connected to the controller; the feeding mechanism is arranged at the top of the base and is electrically connected to the controller; the steel ladle contains molten metal, which is transported to the bottom of the gantry by the feeding mechanism, and the steel ladle can be transferred by the pouring mechanism.

[0005] Preferably, the purpose is to move the position of the steel ladle, and the pouring mechanism includes: a first electrically controlled slide rail is arranged at the top of the gantry and is electrically connected to the controller; a second electrically controlled slide rail is arranged at the front side of the output end of the first electrically controlled slide rail and is electrically connected to the controller; a lifting seat is arranged at the output end of the second electrically controlled slide rail; a mounting frame is arranged at the bottom of the lifting seat; a rotating frame is rotatably mounted on the bottom of the mounting frame; a dumping assembly is arranged at the top of the mounting frame and is electrically connected to the controller; a fixing assembly is arranged on the right side of the rotating frame and is electrically connected to the controller, and the fixing assembly is used to fix the steel ladle.

[0006] Preferably, the purpose is to rotate the steel ladle to pour the molten metal into the casting mold, and the pouring assembly includes: two chutes, which are respectively arranged on the front and rear sides of the right side of the mounting frame; a lifting frame is slidably installed on the right side of the two chutes; two first limit slots are respectively opened at the front and rear bottoms of the lifting frame; two first limit blocks are respectively arranged at the front and rear bottoms of the rotating frame, and the two first limit blocks are slidably connected to the two first limit slots, and when the lifting frame moves up and down, the two first limit slots push the two first limit blocks to drive the rotating frame to rotate; a first electric push rod is arranged at the top of the mounting frame and is electrically connected to the controller, and the output end of the first electric push rod is fixedly connected to the lifting frame, thereby pushing the lifting frame to move up and down.

[0007] Preferably, the purpose is to drive the rotating frame to rotate, and the two first limit grooves are opened horizontally, so as to facilitate pushing the two first limit blocks upward to drive the rotating frame to rotate counterclockwise, thereby causing the steel ladle to tilt to the left.

[0008] Preferably, the purpose is to quickly fix the steel ladle, and the fixing assembly includes: two limit rods, which are respectively arranged on the front and rear sides of the bottom of the rotating frame; two limit holes, which are opened on the front and rear sides of the steel ladle, and the two limit rods are respectively adapted to be plugged into the two limit holes; a bracket is arranged on the right side of the mounting frame; a mounting plate is arranged on the right end of the bracket; a second electric push rod is arranged on the top right side of the mounting plate and is electrically connected to the controller; there are two hooks, which are rotatably mounted on the front and rear ends of the right side of the mounting plate; a slot is arranged on the right side of the steel ladle, and the two hooks are respectively engaged with the front and rear ends of the slot; there are two connecting rods, one end of which is rotatably connected to the two hooks, and the other end is rotatably connected to the output end of the second electric push rod. The output end of the second electric push rod moves up and down, and drives the two hooks to rotate under the push of the connecting rod.

[0009] Preferably, the feeding mechanism includes: a first track is arranged on the top left side of the base; the mold feeding trolley is movably installed on the top of the first track; the rotating assembly is arranged on the left side of the base and is electrically connected to the controller; the second track is arranged on the top right side of the base; the feeding trolley is movably installed on the top of the second track, and the top of the feeding trolley can be equipped with a steel ladle; there are two insertion rods, which are respectively arranged on the front and rear sides of the top of the feeding trolley, and the two insertion rods can be adapted to be plugged into two limiting holes, thereby fixing the feeding trolley.

[0010] Preferably, in order to enhance the fluidity of the molten metal in the mold, the rotating assembly includes: the mold is rotatably mounted on the top of the mold sending vehicle; the first turntable is rotatably mounted on the bottom of the mold sending vehicle and is fixedly connected to the mold; the mounting cavity is opened on the left side of the base; the motor is fixedly mounted on the side wall of the mounting cavity and is electrically connected to the controller; the second turntable is fixedly mounted on the output end of the motor; the second limit groove is opened on the top of the second turntable; the second limit block is arranged at the bottom of the first turntable and is adapted to be plugged into the second limit groove.

[0011] Preferably, the purpose is to drive the mold to rotate, and the second limit groove and the second limit block are both arranged in the front-to-back direction, so as to ensure that when the mold delivery vehicle travels above the motor, the second limit block and the second limit groove are adapted to be plugged in, and the output end of the motor drives the mold to rotate through the second limit block and the second limit groove.

[0012] The beneficial effects of the present invention compared with the prior art are:

[0013] 1. The present invention uses two limit rods to fit in two limit holes. Then the output end of the second electric push rod pulls the two connecting rods upward to rotate the two hooks inward at the same time. The bottom ends of the two hooks are fixed to the front and rear sides of the slot, thereby fixing the steel ladle. The steel ladle can be automatically replaced without manual intervention.

[0014] 2. During the feeding process, the two insertion rods of the present invention can be respectively adapted to be plugged into the two limiting holes, thereby fixing the feeding cart. During the pouring process, the bottom ends of the two hooks are fixed to the front and rear sides of the slot, thereby fixing the steel ladle. The steel ladle is fixed throughout the entire process, effectively preventing the steel ladle from falling and causing injury, thereby effectively improving safety.

[0015] 3. In the present invention, the second limiting block is adapted to be plugged into the second limiting groove, and the output end of the motor drives the mold to rotate through the second limiting block and the second limiting groove, thereby increasing the fluidity of the molten metal in the mold.

[0016] 4. The present invention pushes the two first limiting blocks upward through the first limiting groove to drive the rotating frame to rotate counterclockwise, so that the ladle pours the molten metal into the casting mold to achieve fully automatic pouring.

[0017] 5. The present invention uses a mold delivery vehicle to transport the casting mold and a material delivery vehicle to transport the molten metal and residual steel slag, eliminating the need for manual loading and unloading, thus meeting the needs of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is the front view of the present invention.

[0020] Figure 3 for Figure 2 A in the enlarged view.

[0021] Figure 4 This is the left view of the rotating component.

[0022] Figure 5 Schematic diagram of the pouring mechanism structure.

[0023] Figure 6 for Figure 5 Enlarged view of point B in .

[0024] Figure 7 It is a right side cross-sectional view of the fixed component.

[0025] Figure 8 The right side cross-sectional view of the fixed component grabbing process.

[0026] Figure 9 for Figure 8 Enlarged view of point C in the figure.

[0027] In the figure: 1, gantry; 2, base; 3, pouring mechanism; 31, first electric control slide; 32, second electric control slide; 33, lifting seat; 34, mounting frame; 35, rotating frame; 36, tilting assembly; 361, slide; 362, lifting frame; 363, first limiting groove; 364, first limiting block; 365, first electric push rod; 37, fixing assembly; 371, limiting rod; 372, limiting hole; 373, bracket; 374, mounting plate; 37 5. Second electric push rod; 376. Hook; 377. Slot; 378. Connecting rod; 4. Feeding mechanism; 41. First track; 42. Mold feeding trolley; 43. Rotating assembly; 431. Mold; 432. First turntable; 433. Mounting cavity; 434. Motor; 435. Second turntable; 436. Second limit slot; 437. Second limit block; 44. Second track; 45. Feeding trolley; 46. Insert rod; 5. Sand pit; 6. Controller; 7. Steel ladle. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-9 To achieve the above-mentioned purpose, the present invention provides a technical solution: a pouring device for a flange casting of a wind turbine gearbox, comprising: a gantry 1, a base 2, a pouring mechanism 3, a feeding mechanism 4, a sand pit 5, a controller 6 and a ladle 7. The base 2 is arranged at the bottom of the gantry 1, and the sand pit 5 is arranged in the middle of the base 2. The sand pit 5 can effectively control the damage caused by the overflow of molten metal during the movement of the ladle. In a specific implementation, the inner wall of the sand pit 5 should also be provided with a protective plate. The controller 6 is arranged on the right side of the gantry 1, the pouring mechanism 3 is arranged at the top of the gantry 1 and is electrically connected to the controller 6. The feeding mechanism 4 is arranged at the top of the base 2 and is electrically connected to the controller 6. The ladle 7 contains molten metal and is transported to the bottom of the gantry 1 by the feeding mechanism 4. The ladle 7 can be transferred by the pouring mechanism 3.

[0030] As a preferred solution, further, Figure 5-8 As shown, the pouring mechanism 3 includes: a first electrically controlled slide rail 31, a second electrically controlled slide rail 32, a lifting seat 33, a mounting frame 34, a rotating frame 35, a dumping assembly 36 and a fixing assembly 37. The first electrically controlled slide rail 31 is arranged at the top of the gantry 1 and is electrically connected to the controller 6. The second electrically controlled slide rail 32 is arranged in front of the output end of the first electrically controlled slide rail 31 and is electrically connected to the controller 6. The lifting seat 33 is arranged at the output end of the second electrically controlled slide rail 32. The controller 6 controls the first electrically controlled slide rail 31 and the second electrically controlled slide rail 32 to drive the lifting seat 33 to move. The mounting frame 34 is arranged at the bottom of the lifting seat 33. The rotating frame 35 is rotatably mounted on the bottom of the mounting frame 34. The dumping assembly 36 is arranged at the top of the mounting frame 34 and is electrically connected to the controller 6. The fixing assembly 37 is arranged on the right side of the rotating frame 35 and is electrically connected to the controller 6. The fixing assembly 37 is used to fix the steel ladle 7.

[0031] As a preferred solution, further, Figure 5-6As shown, the tipping assembly 36 includes: a slide groove 361, a lifting frame 362, a first limiting groove 363, a first limiting block 364 and a first electric push rod 365. There are two slide grooves 361, which are respectively arranged on the front and rear sides of the right side of the mounting frame 34. The lifting frame 362 is slidably installed on the right side of the two slide grooves 361. There are two first limiting grooves 363, which are respectively opened at the bottom of the front and rear sides of the lifting frame 362. There are two first limiting blocks 364, which are respectively arranged at the bottom of the front and rear sides of the rotating frame 35. The two first limiting blocks 364 are slidably connected to the two first limiting grooves 363. When the lifting frame 362 moves up and down, the two first limiting grooves 363 push the two first limiting blocks 364 to drive the rotating frame 35 to rotate. The first electric push rod 365 is set at the top of the mounting frame 34 and is electrically connected to the controller 6. The output end of the first electric push rod 365 is fixedly connected to the lifting frame 362, thereby pushing the lifting frame 362 to move up and down.

[0032] As a preferred solution, further, Figure 5-6 As shown, the two first limiting grooves 363 are opened horizontally, so as to facilitate pushing the two first limiting blocks 364 upward to drive the rotating frame 35 to rotate counterclockwise, so that the ladle 7 pours the molten metal into the casting mold 431.

[0033] As a preferred solution, further, Figure 7-8 As shown, the fixing assembly 37 includes: a limiting rod 371, a limiting hole 372, a bracket 373, a mounting plate 374, a second electric push rod 375, a hook 376, a slot 377 and a connecting rod 378. There are two limiting rods 371, which are respectively arranged on the front and rear sides of the bottom of the rotating frame 35. There are two limiting holes 372, which are opened on the front and rear sides of the ladle 7, and the two limiting rods 371 are respectively adapted to be plugged into the two limiting holes 372. The bracket 373 is arranged on the right side of the mounting frame 34, the mounting plate 374 is arranged at the right end of the bracket 373, and the second electric push rod 375 is arranged on the right side of the mounting frame 34. It is placed on the top right side of the mounting plate 374 and is electrically connected to the controller 6. There are two hooks 376, which are rotatably mounted on the front and rear ends of the right side of the mounting plate 374. A slot 377 is provided on the right side of the ladle 7, and the two hooks 376 are respectively engaged with the front and rear ends of the slot 377. There are two connecting rods 378, one end of which is rotatably connected to the two hooks 376, and the other end is rotatably connected to the output end of the second electric push rod 375. The output end of the second electric push rod 375 moves up and down, and the two hooks 376 are driven to rotate by the connecting rod 378.

[0034] The controller 6 controls the first electric-controlled slide rail 31 and the second electric-controlled slide rail 32 to drive the lifting seat 33 to move, so that the two limit rods 371 are adapted to be plugged into the two limit holes 372. Then the output end of the second electric push rod 375 pulls the two connecting rods 378 upward to make the two hooks 376 rotate inward at the same time. The bottom ends of the two hooks 376 are fixed to the front and rear sides of the slot 377, thereby fixing the steel ladle 7.

[0035] As a preferred solution, further, Figure 1-4 As shown, the feeding mechanism 4 includes: a first track 41, a mold sending vehicle 42, a rotating component 43, a second track 44, a feeding vehicle 45 and an inserting rod 46. The first track 41 is arranged on the top left side of the base 2, and the mold sending vehicle 42 is movably installed on the top of the first track 41. The controller 6 can control the movement of the mold sending vehicle 42. The rotating component 43 is arranged on the left side of the base 2 and is electrically connected to the controller 6. The second track 44 is arranged on the top right side of the base 2. The feeding vehicle 45 is movably installed on the top of the second track 44. At the top, the steel ladle 7 can be installed on the top of the feeding trolley 45, and the controller 6 can control the movement of the feeding trolley 45. There are two insertion rods 46, which are respectively arranged on the front and rear sides of the top of the feeding trolley 45, and the two insertion rods 46 can be respectively adapted to be plugged into the two limiting holes 372, so as to fix the feeding trolley 45. In the specific implementation, the number of the mold delivery trolley 42 and the feeding trolley 45 can be increased, and the movement sequence of the mold delivery trolley 42, the feeding trolley 45 and the pouring mechanism 3 can be adjusted by the controller 6 to maximize the efficiency.

[0036] As a preferred solution, further, Figure 3-4 As shown, the rotating assembly 43 includes: a mold 431, a first turntable 432, a mounting cavity 433, a motor 434, a second turntable 435, a second limiting groove 436 and a second limiting block 437. The mold 431 is rotatably mounted on the top of the mold sending vehicle 42, and the first turntable 432 is rotatably mounted on the bottom of the mold sending vehicle 42 and is fixedly connected to the mold 431. In a specific implementation, the arrangement of the mold should be such that the thin-walled portion with a larger area is placed at the bottom of the mold or is placed vertically or tilted. In an oblique position, the important surface or large surface area faces downward. In the specific implementation, the flange surface should be set downward. The mounting cavity 433 is opened on the left side of the base 2. The motor 434 is fixedly installed on the side wall of the mounting cavity 433 and is electrically connected to the controller 6. The second turntable 435 is fixedly installed on the output end of the motor 434. The second limiting groove 436 is opened on the top of the second turntable 435. The second limiting block 437 is set at the bottom of the first turntable 432 and is adapted to be plugged into the second limiting groove 436.

[0037] As a preferred solution, further, Figure 3As shown, the second limiting groove 436 and the second limiting block 437 are both arranged in the front-to-back direction, so as to ensure that when the mold delivery vehicle 42 travels above the motor 434, the second limiting block 437 and the second limiting groove 436 are adapted and plugged in, and the output end of the motor 434 drives the mold 431 to rotate through the second limiting block 437 and the second limiting groove 436.

[0038] A method for casting a flange casting of a wind turbine gearbox comprises the following steps:

[0039] In step 1, the feeding car 45 transports the ladle 7 containing molten metal to the bottom of the gantry 1. The controller 6 controls the first and second electric-controlled slide rails 31 and 32 to drive the lifting seat 33 to move, so that the two limit rods 371 are adapted to be plugged into the two limit holes 372. Then, the output end of the second electric push rod 375 pulls the two connecting rods 378 upward, causing the two hooks 376 to rotate inward simultaneously. The bottom ends of the two hooks 376 are fixed to the front and rear sides of the slots 377, thereby fixing the ladle 7.

[0040] Step 2: The mold-feeding vehicle 42 moves to the top of the motor 434, and the second limiting block 437 is adapted to be plugged into the second limiting groove 436. The output end of the motor 434 drives the mold 431 to rotate through the second limiting block 437 and the second limiting groove 436, thereby increasing the fluidity of the molten metal in the mold 431.

[0041] Step 3: The controller 6 controls the first and second electrically controlled slide rails 31 and 32 to drive the lifting base 33 to move above the mold 431. The output end of the first electric push rod 365 pushes the lifting frame 362 upward. The two first limiting grooves 363 push the two first limiting blocks 364 upward, driving the rotating frame 35 to rotate counterclockwise, thereby causing the ladle 7 to pour the molten metal into the mold 431.

[0042] In step 4, the controller 6 controls the output end of the motor 434 to rotate the second limit groove 436 and the second limit block 437 to the front-to-back direction, so that the mold delivery vehicle 42 continues to transport the cast mold 431, and the controller 6 controls the pouring mechanism 3 to put the steel ladle 7 back to the delivery vehicle 45.

[0043] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand and implement the present invention. They are not intended to limit the scope of protection of the present invention. Unless otherwise stated, any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features. Each feature is merely one example of a series of equivalent or similar features.

Claims

1. A pouring device for a wind turbine gearbox flange casting, comprising: A gantry (1), a base (2), a sand pit (5) and a controller (6), wherein the base (2) is arranged at the bottom of the gantry (1), the sand pit (5) is arranged at the middle position of the base (2), and the controller (6) is arranged on the right side of the gantry (1), characterized in that the casting device for the wind turbine gearbox flange casting further includes: A pouring mechanism (3) is arranged on the top of the gantry (1) and is electrically connected to the controller (6); A feeding mechanism (4) is arranged on the top of the base (2) and is electrically connected to the controller (6); A steel ladle (7) containing molten metal is transported to the bottom of the gantry (1) via the feeding mechanism (4), and the steel ladle (7) can be transferred via the pouring mechanism (3); The pouring mechanism (3) comprises: A first electrically controlled slide rail (31) is disposed on the top of the gantry (1) and is electrically connected to the controller (6); A second electrically controlled slide rail (32) is arranged in front of the output end of the first electrically controlled slide rail (31) and is electrically connected to the controller (6); A lifting seat (33) is arranged at the output end of the second electrically controlled slide rail (32); A mounting frame (34) is provided at the bottom of the lifting seat (33); A rotating frame (35) rotatably mounted on the bottom of the mounting frame (34); A dumping assembly (36) is disposed on the top of the mounting frame (34) and is electrically connected to the controller (6); A fixing assembly (37) is provided on the right side of the rotating frame (35) and is electrically connected to the controller (6). The fixing assembly (37) is used to fix the steel ladle (7); The fixing assembly (37) comprises: There are two limiting rods (371), which are respectively arranged at the front and rear sides of the bottom of the rotating frame (35); There are two limiting holes (372) provided on the front and rear sides of the steel ladle (7), and the two limiting rods (371) are respectively adapted to be plugged into the two limiting holes (372); A bracket (373) is provided on the right side of the mounting frame (34); A mounting plate (374) is provided at the right end of the bracket (373); A second electric push rod (375) is disposed on the top right side of the mounting plate (374) and is electrically connected to the controller (6); Two retractor hooks (376) are rotatably mounted on the front and rear ends of the right side of the mounting plate (374); A clamping slot (377) is provided on the right side of the steel ladle (7), and the two draw hooks (376) are respectively clamped with the front and rear ends of the clamping slot (377); There are two connecting rods (378), one end of which is rotatably connected to the two hooks (376), and the other end of which is rotatably connected to the output end of the second electric push rod (375). The output end of the second electric push rod (375) moves up and down, and drives the two hooks (376) to rotate under the push of the connecting rod (378); The feeding mechanism (4) comprises: A first track (41) is provided on the top left side of the base (2); A mold delivery vehicle (42) is movably mounted on the top of the first track (41); A rotating assembly (43) is disposed on the left side of the base (2) and is electrically connected to the controller (6); A second track (44) is provided on the top right side of the base (2); A feeding trolley (45) is movably mounted on the top of the second track (44), and a steel ladle (7) can be mounted on the top of the feeding trolley (45); There are two insertion rods (46), which are respectively arranged on the front and rear sides of the top of the feeding trolley (45), and the two insertion rods (46) can be respectively adapted to be plugged into the two limiting holes (372), thereby fixing the feeding trolley (45); The pouring assembly (36) comprises: Two slide grooves (361) are provided on the front and rear sides of the right side of the mounting frame (34); A lifting frame (362) is slidably mounted on the right side of the two slide grooves (361); Two first limiting grooves (363) are respectively provided at the bottom of the front and rear sides of the lifting frame (362); There are two first limiting blocks (364), which are respectively arranged at the bottom of the front and rear sides of the rotating frame (35). The two first limiting blocks (364) are slidably connected to the two first limiting grooves (363). When the lifting frame (362) moves up and down, the two first limiting grooves (363) push the two first limiting blocks (364) to drive the rotating frame (35) to rotate; A first electric push rod (365) is disposed on the top of the mounting frame (34) and is electrically connected to the controller (6). An output end of the first electric push rod (365) is fixedly connected to the lifting frame (362), thereby pushing the lifting frame (362) to move up and down.

2. A pouring device for a wind turbine gearbox flange casting according to claim 1, characterized in that: The two first limiting grooves (363) are opened horizontally, so as to facilitate pushing the two first limiting blocks (364) upward to drive the rotating frame (35) to rotate counterclockwise, thereby causing the steel ladle (7) to tilt to the left.

3. A pouring device for a wind turbine gearbox flange casting according to claim 2, characterized in that: The rotating assembly (43) comprises: A casting mold (431) is rotatably mounted on the top of the mold delivery vehicle (42); A first turntable (432) is rotatably mounted on the bottom of the mold delivery vehicle (42) and is fixedly connected to the casting mold (431); A mounting cavity (433) is provided on the left side of the base (2); A motor (434) is fixedly mounted on a side wall of the mounting cavity (433) and electrically connected to the controller (6); A second rotating disk (435) is fixedly mounted on the output end of the motor (434); A second limiting groove (436) is provided on the top of the second rotating disk (435); The second limiting block (437) is arranged at the bottom of the first rotating disk (432) and is adapted to be plugged into the second limiting groove (436).

4. A pouring device for a flange casting of a wind turbine gearbox according to claim 3, characterized in that: The second limiting groove (436) and the second limiting block (437) are both arranged in the front-to-back direction, thereby ensuring that when the mold delivery vehicle (42) travels above the motor (434), the second limiting block (437) and the second limiting groove (436) are adapted and plugged in, and the output end of the motor (434) drives the mold (431) to rotate through the second limiting block (437) and the second limiting groove (436).

5. A method for casting a flange casting of a wind turbine gearbox, which is applied to a casting device for a flange casting of a wind turbine gearbox as claimed in claim 4, characterized in that: The following steps are involved: Step 1: The feeding car (45) transports the steel ladle (7) containing molten metal to the bottom of the gantry (1), and the controller (6) controls the first electric control slide rail (31) and the second electric control slide rail (32) to drive the lifting seat (33) to move, so that the two limit rods (371) are adapted to be plugged into the two limit holes (372), and then the output end of the second electric push rod (375) pulls the two connecting rods (378) upward to make the two hooks (376) rotate inward at the same time, and the bottom ends of the two hooks (376) are fixed to the front and rear sides of the slot (377), thereby fixing the steel ladle (7); Step 2: The mold delivery vehicle (42) moves to the top of the motor (434), the second limiting block (437) is adapted to be plugged into the second limiting groove (436), and the output end of the motor (434) drives the mold (431) to rotate through the second limiting block (437) and the second limiting groove (436), thereby increasing the fluidity of the molten metal in the mold (431); Step 3: The controller (6) controls the first electrically controlled slide rail (31) and the second electrically controlled slide rail (32) to drive the lifting seat (33) to move above the casting mold (431). The output end of the first electric push rod (365) pushes the lifting frame (362) to move upward. The two first limiting grooves (363) push the two first limiting blocks (364) upward to drive the rotating frame (35) to rotate counterclockwise, thereby causing the steel ladle (7) to pour the molten metal into the casting mold (431). In step 4, the controller (6) controls the output end of the motor (434) to rotate the second limiting groove (436) and the second limiting block (437) to the front-back direction, so that the mold delivery vehicle (42) continues to deliver the finished casting mold (431), and the controller (6) controls the pouring mechanism (3) to return the steel ladle (7) to the delivery vehicle (45).

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